From 3b0cfa3809c1a168724e5f433fbf840eef8d3af5 Mon Sep 17 00:00:00 2001 From: ABF Date: Thu, 17 Mar 2022 07:14:21 +0000 Subject: [PATCH] Automatic import for version 5.15.28-1 --- .abf.yml | 3 + 0001-Apply-AUFS-5.patch | 37932 ++++++++++++++++ ...o-off-modules-signature-check-dynami.patch | 37 + ...PM-illegal-chars-from-module-version.patch | 40 + ...unexport-kallsyms_lookup_name-and-ka.patch | 30 + 0001-altha.patch | 1172 + 0001-audit-make-it-less-verbose.patch | 34 + ...t-loading-GOST-signed-kernel-modules.patch | 39 + ...-prepare-scripts-configs-in-devel-rp.patch | 102 + 0001-perf-skip-xmlto-validation.patch | 30 + ...l-functionality-with-modern-LibreSSL.patch | 47 + 0601-baikalm.patch | 23032 ++++++++++ 0604-efi-arm-runtime-print-EFI-mapping.patch | 27 + 0608-Baikal-M-USB-driver.patch | 161 + 0609-Baikal-M-video-unit-driver.patch | 103 + ...-Baikal-M-PCIe-driver-from-SDK-M-4.3.patch | 1210 + ...-Baikal-M-PCIe-driver-from-SDK-M-4.4.patch | 850 + ...bility-with-Baikal-M-firmware-from-S.patch | 22 + cpupower-start.sh | 47 + cpupower.config | 7 + cpupower.path | 9 + cpupower.service | 14 + kernel-5.10.93-fix-perf-build.patch | 12 + kernel-arm64.config | 12517 +++++ kernel-i586.config | 10880 +++++ kernel-x86_64.config | 10959 +++++ kernel.rpmlintrc | 39 + kernel.spec | 1797 + le9pf.diff | 189 + macros.ksobirator | 40 + public_key_GOST_1.pem | 17 + public_key_GOST_2.pem | 17 + public_key_GOST_3.pem | 17 + public_key_GOST_4.pem | 17 + public_key_GOST_5.pem | 17 + public_key_GOST_6.pem | 17 + public_key_RSA_10.pem | 22 + public_key_RSA_11.pem | 22 + public_key_RSA_12.pem | 22 + public_key_RSA_7.pem | 22 + public_key_RSA_8.pem | 22 + public_key_RSA_9.pem | 22 + 42 files changed, 101615 insertions(+) create mode 100644 .abf.yml create mode 100644 0001-Apply-AUFS-5.patch create mode 100644 0001-ROSA-ima-allow-to-off-modules-signature-check-dynami.patch create mode 100644 0001-Remove-RPM-illegal-chars-from-module-version.patch create mode 100644 0001-Revert-kallsyms-unexport-kallsyms_lookup_name-and-ka.patch create mode 100644 0001-altha.patch create mode 100644 0001-audit-make-it-less-verbose.patch create mode 100644 0001-crypto-support-loading-GOST-signed-kernel-modules.patch create mode 100644 0001-disable-mrproper-prepare-scripts-configs-in-devel-rp.patch create mode 100644 0001-perf-skip-xmlto-validation.patch create mode 100644 0001-sign-file-full-functionality-with-modern-LibreSSL.patch create mode 100644 0601-baikalm.patch create mode 100644 0604-efi-arm-runtime-print-EFI-mapping.patch create mode 100644 0608-Baikal-M-USB-driver.patch create mode 100644 0609-Baikal-M-video-unit-driver.patch create mode 100644 0616-Baikal-M-PCIe-driver-from-SDK-M-4.3.patch create mode 100644 0617-Baikal-M-PCIe-driver-from-SDK-M-4.4.patch create mode 100644 0619-panfrost-compatibility-with-Baikal-M-firmware-from-S.patch create mode 100644 cpupower-start.sh create mode 100644 cpupower.config create mode 100644 cpupower.path create mode 100644 cpupower.service create mode 100644 kernel-5.10.93-fix-perf-build.patch create mode 100644 kernel-arm64.config create mode 100644 kernel-i586.config create mode 100644 kernel-x86_64.config create mode 100644 kernel.rpmlintrc create mode 100644 kernel.spec create mode 100644 le9pf.diff create mode 100644 macros.ksobirator create mode 100644 public_key_GOST_1.pem create mode 100644 public_key_GOST_2.pem create mode 100644 public_key_GOST_3.pem create mode 100644 public_key_GOST_4.pem create mode 100644 public_key_GOST_5.pem create mode 100644 public_key_GOST_6.pem create mode 100644 public_key_RSA_10.pem create mode 100644 public_key_RSA_11.pem create mode 100644 public_key_RSA_12.pem create mode 100644 public_key_RSA_7.pem create mode 100644 public_key_RSA_8.pem create mode 100644 public_key_RSA_9.pem diff --git a/.abf.yml b/.abf.yml new file mode 100644 index 0000000..89f9cee --- /dev/null +++ b/.abf.yml @@ -0,0 +1,3 @@ +sources: + "linux-5.15.tar.xz": ac61f2459040c09af1d5abd4ed100c3d316b443e + "patch-5.15.28.xz": 20337719e70d8bd465f2ffbccd84cd8c3b2b274b diff --git a/0001-Apply-AUFS-5.patch b/0001-Apply-AUFS-5.patch new file mode 100644 index 0000000..0d33b94 --- /dev/null +++ b/0001-Apply-AUFS-5.patch @@ -0,0 +1,37932 @@ +https://github.com/sfjro/aufs5-linux/commit/dcbf599957b2553e5a801e23797e9ac816e34ec8 +Without fs/inode.c + +diff -Naur linux-5.15/Documentation/ABI/testing/debugfs-aufs aufs5-linux-aufs5.15/Documentation/ABI/testing/debugfs-aufs +--- linux-5.15/Documentation/ABI/testing/debugfs-aufs 1970-01-01 03:00:00.000000000 +0300 ++++ aufs5-linux-aufs5.15/Documentation/ABI/testing/debugfs-aufs 2022-03-07 13:48:09.000000000 +0300 +@@ -0,0 +1,55 @@ ++What: /debug/aufs/si_/ ++Date: March 2009 ++Contact: J. R. Okajima ++Description: ++ Under /debug/aufs, a directory named si_ is created ++ per aufs mount, where is a unique id generated ++ internally. ++ ++What: /debug/aufs/si_/plink ++Date: Apr 2013 ++Contact: J. R. Okajima ++Description: ++ It has three lines and shows the information about the ++ pseudo-link. The first line is a single number ++ representing a number of buckets. The second line is a ++ number of pseudo-links per buckets (separated by a ++ blank). The last line is a single number representing a ++ total number of psedo-links. ++ When the aufs mount option 'noplink' is specified, it ++ will show "1\n0\n0\n". ++ ++What: /debug/aufs/si_/xib ++Date: March 2009 ++Contact: J. R. Okajima ++Description: ++ It shows the consumed blocks by xib (External Inode Number ++ Bitmap), its block size and file size. ++ When the aufs mount option 'noxino' is specified, it ++ will be empty. About XINO files, see the aufs manual. ++ ++What: /debug/aufs/si_/xi ++Date: March 2009 ++Contact: J. R. Okajima ++Description: ++ It shows the consumed blocks by xino (External Inode Number ++ Translation Table), its link count, block size and file ++ size. ++ Due to the file size limit, there may exist multiple ++ xino files per branch. In this case, "-N" is added to ++ the filename and it corresponds to the index of the ++ internal xino array. "-0" is omitted. ++ When the aufs mount option 'noxino' is specified, Those ++ entries won't exist. About XINO files, see the aufs ++ manual. ++ ++What: /debug/aufs/si_/xigen ++Date: March 2009 ++Contact: J. R. Okajima ++Description: ++ It shows the consumed blocks by xigen (External Inode ++ Generation Table), its block size and file size. ++ If CONFIG_AUFS_EXPORT is disabled, this entry will not ++ be created. ++ When the aufs mount option 'noxino' is specified, it ++ will be empty. About XINO files, see the aufs manual. +diff -Naur linux-5.15/Documentation/ABI/testing/sysfs-aufs aufs5-linux-aufs5.15/Documentation/ABI/testing/sysfs-aufs +--- linux-5.15/Documentation/ABI/testing/sysfs-aufs 1970-01-01 03:00:00.000000000 +0300 ++++ aufs5-linux-aufs5.15/Documentation/ABI/testing/sysfs-aufs 2022-03-07 13:48:09.000000000 +0300 +@@ -0,0 +1,31 @@ ++What: /sys/fs/aufs/si_/ ++Date: March 2009 ++Contact: J. R. Okajima ++Description: ++ Under /sys/fs/aufs, a directory named si_ is created ++ per aufs mount, where is a unique id generated ++ internally. ++ ++What: /sys/fs/aufs/si_/br ++Date: March 2009 ++Contact: J. R. Okajima ++Description: ++ It shows the abolute path of a member directory (which ++ is called branch) in aufs, and its permission. ++ ++What: /sys/fs/aufs/si_/brid ++Date: July 2013 ++Contact: J. R. Okajima ++Description: ++ It shows the id of a member directory (which is called ++ branch) in aufs. ++ ++What: /sys/fs/aufs/si_/xi_path ++Date: March 2009 ++Contact: J. R. Okajima ++Description: ++ It shows the abolute path of XINO (External Inode Number ++ Bitmap, Translation Table and Generation Table) file ++ even if it is the default path. ++ When the aufs mount option 'noxino' is specified, it ++ will be empty. About XINO files, see the aufs manual. +diff -Naur linux-5.15/Documentation/filesystems/aufs/design/01intro.txt aufs5-linux-aufs5.15/Documentation/filesystems/aufs/design/01intro.txt +--- linux-5.15/Documentation/filesystems/aufs/design/01intro.txt 1970-01-01 03:00:00.000000000 +0300 ++++ aufs5-linux-aufs5.15/Documentation/filesystems/aufs/design/01intro.txt 2022-03-07 13:48:09.000000000 +0300 +@@ -0,0 +1,158 @@ ++ ++# Copyright (C) 2005-2021 Junjiro R. Okajima ++ ++Introduction ++---------------------------------------- ++ ++aufs [ei ju: ef es] | /ey-yoo-ef-es/ | [a u f s] ++1. abbrev. for "advanced multi-layered unification filesystem". ++2. abbrev. for "another unionfs". ++3. abbrev. for "auf das" in German which means "on the" in English. ++ Ex. "Butter aufs Brot"(G) means "butter onto bread"(E). ++ But "Filesystem aufs Filesystem" is hard to understand. ++4. abbrev. for "African Urban Fashion Show". ++ ++AUFS is a filesystem with features: ++- multi layered stackable unification filesystem, the member directory ++ is called as a branch. ++- branch permission and attribute, 'readonly', 'real-readonly', ++ 'readwrite', 'whiteout-able', 'link-able whiteout', etc. and their ++ combination. ++- internal "file copy-on-write". ++- logical deletion, whiteout. ++- dynamic branch manipulation, adding, deleting and changing permission. ++- allow bypassing aufs, user's direct branch access. ++- external inode number translation table and bitmap which maintains the ++ persistent aufs inode number. ++- seekable directory, including NFS readdir. ++- file mapping, mmap and sharing pages. ++- pseudo-link, hardlink over branches. ++- loopback mounted filesystem as a branch. ++- several policies to select one among multiple writable branches. ++- revert a single systemcall when an error occurs in aufs. ++- and more... ++ ++ ++Multi Layered Stackable Unification Filesystem ++---------------------------------------------------------------------- ++Most people already knows what it is. ++It is a filesystem which unifies several directories and provides a ++merged single directory. When users access a file, the access will be ++passed/re-directed/converted (sorry, I am not sure which English word is ++correct) to the real file on the member filesystem. The member ++filesystem is called 'lower filesystem' or 'branch' and has a mode ++'readonly' and 'readwrite.' And the deletion for a file on the lower ++readonly branch is handled by creating 'whiteout' on the upper writable ++branch. ++ ++On LKML, there have been discussions about UnionMount (Jan Blunck, ++Bharata B Rao and Valerie Aurora) and Unionfs (Erez Zadok). They took ++different approaches to implement the merged-view. ++The former tries putting it into VFS, and the latter implements as a ++separate filesystem. ++(If I misunderstand about these implementations, please let me know and ++I shall correct it. Because it is a long time ago when I read their ++source files last time). ++ ++UnionMount's approach will be able to small, but may be hard to share ++branches between several UnionMount since the whiteout in it is ++implemented in the inode on branch filesystem and always ++shared. According to Bharata's post, readdir does not seems to be ++finished yet. ++There are several missing features known in this implementations such as ++- for users, the inode number may change silently. eg. copy-up. ++- link(2) may break by copy-up. ++- read(2) may get an obsoleted filedata (fstat(2) too). ++- fcntl(F_SETLK) may be broken by copy-up. ++- unnecessary copy-up may happen, for example mmap(MAP_PRIVATE) after ++ open(O_RDWR). ++ ++In linux-3.18, "overlay" filesystem (formerly known as "overlayfs") was ++merged into mainline. This is another implementation of UnionMount as a ++separated filesystem. All the limitations and known problems which ++UnionMount are equally inherited to "overlay" filesystem. ++ ++Unionfs has a longer history. When I started implementing a stackable ++filesystem (Aug 2005), it already existed. It has virtual super_block, ++inode, dentry and file objects and they have an array pointing lower ++same kind objects. After contributing many patches for Unionfs, I ++re-started my project AUFS (Jun 2006). ++ ++In AUFS, the structure of filesystem resembles to Unionfs, but I ++implemented my own ideas, approaches and enhancements and it became ++totally different one. ++ ++Comparing DM snapshot and fs based implementation ++- the number of bytes to be copied between devices is much smaller. ++- the type of filesystem must be one and only. ++- the fs must be writable, no readonly fs, even for the lower original ++ device. so the compression fs will not be usable. but if we use ++ loopback mount, we may address this issue. ++ for instance, ++ mount /cdrom/squashfs.img /sq ++ losetup /sq/ext2.img ++ losetup /somewhere/cow ++ dmsetup "snapshot /dev/loop0 /dev/loop1 ..." ++- it will be difficult (or needs more operations) to extract the ++ difference between the original device and COW. ++- DM snapshot-merge may help a lot when users try merging. in the ++ fs-layer union, users will use rsync(1). ++ ++You may want to read my old paper "Filesystems in LiveCD" ++(http://aufs.sourceforge.net/aufs2/report/sq/sq.pdf). ++ ++ ++Several characters/aspects/persona of aufs ++---------------------------------------------------------------------- ++ ++Aufs has several characters, aspects or persona. ++1. a filesystem, callee of VFS helper ++2. sub-VFS, caller of VFS helper for branches ++3. a virtual filesystem which maintains persistent inode number ++4. reader/writer of files on branches such like an application ++ ++1. Callee of VFS Helper ++As an ordinary linux filesystem, aufs is a callee of VFS. For instance, ++unlink(2) from an application reaches sys_unlink() kernel function and ++then vfs_unlink() is called. vfs_unlink() is one of VFS helper and it ++calls filesystem specific unlink operation. Actually aufs implements the ++unlink operation but it behaves like a redirector. ++ ++2. Caller of VFS Helper for Branches ++aufs_unlink() passes the unlink request to the branch filesystem as if ++it were called from VFS. So the called unlink operation of the branch ++filesystem acts as usual. As a caller of VFS helper, aufs should handle ++every necessary pre/post operation for the branch filesystem. ++- acquire the lock for the parent dir on a branch ++- lookup in a branch ++- revalidate dentry on a branch ++- mnt_want_write() for a branch ++- vfs_unlink() for a branch ++- mnt_drop_write() for a branch ++- release the lock on a branch ++ ++3. Persistent Inode Number ++One of the most important issue for a filesystem is to maintain inode ++numbers. This is particularly important to support exporting a ++filesystem via NFS. Aufs is a virtual filesystem which doesn't have a ++backend block device for its own. But some storage is necessary to ++keep and maintain the inode numbers. It may be a large space and may not ++suit to keep in memory. Aufs rents some space from its first writable ++branch filesystem (by default) and creates file(s) on it. These files ++are created by aufs internally and removed soon (currently) keeping ++opened. ++Note: Because these files are removed, they are totally gone after ++ unmounting aufs. It means the inode numbers are not persistent ++ across unmount or reboot. I have a plan to make them really ++ persistent which will be important for aufs on NFS server. ++ ++4. Read/Write Files Internally (copy-on-write) ++Because a branch can be readonly, when you write a file on it, aufs will ++"copy-up" it to the upper writable branch internally. And then write the ++originally requested thing to the file. Generally kernel doesn't ++open/read/write file actively. In aufs, even a single write may cause a ++internal "file copy". This behaviour is very similar to cp(1) command. ++ ++Some people may think it is better to pass such work to user space ++helper, instead of doing in kernel space. Actually I am still thinking ++about it. But currently I have implemented it in kernel space. +diff -Naur linux-5.15/Documentation/filesystems/aufs/design/02struct.txt aufs5-linux-aufs5.15/Documentation/filesystems/aufs/design/02struct.txt +--- linux-5.15/Documentation/filesystems/aufs/design/02struct.txt 1970-01-01 03:00:00.000000000 +0300 ++++ aufs5-linux-aufs5.15/Documentation/filesystems/aufs/design/02struct.txt 2022-03-07 13:48:09.000000000 +0300 +@@ -0,0 +1,245 @@ ++ ++# Copyright (C) 2005-2021 Junjiro R. Okajima ++ ++Basic Aufs Internal Structure ++ ++Superblock/Inode/Dentry/File Objects ++---------------------------------------------------------------------- ++As like an ordinary filesystem, aufs has its own ++superblock/inode/dentry/file objects. All these objects have a ++dynamically allocated array and store the same kind of pointers to the ++lower filesystem, branch. ++For example, when you build a union with one readwrite branch and one ++readonly, mounted /au, /rw and /ro respectively. ++- /au = /rw + /ro ++- /ro/fileA exists but /rw/fileA ++ ++Aufs lookup operation finds /ro/fileA and gets dentry for that. These ++pointers are stored in a aufs dentry. The array in aufs dentry will be, ++- [0] = NULL (because /rw/fileA doesn't exist) ++- [1] = /ro/fileA ++ ++This style of an array is essentially same to the aufs ++superblock/inode/dentry/file objects. ++ ++Because aufs supports manipulating branches, ie. add/delete/change ++branches dynamically, these objects has its own generation. When ++branches are changed, the generation in aufs superblock is ++incremented. And a generation in other object are compared when it is ++accessed. When a generation in other objects are obsoleted, aufs ++refreshes the internal array. ++ ++ ++Superblock ++---------------------------------------------------------------------- ++Additionally aufs superblock has some data for policies to select one ++among multiple writable branches, XIB files, pseudo-links and kobject. ++See below in detail. ++About the policies which supports copy-down a directory, see ++wbr_policy.txt too. ++ ++ ++Branch and XINO(External Inode Number Translation Table) ++---------------------------------------------------------------------- ++Every branch has its own xino (external inode number translation table) ++file. The xino file is created and unlinked by aufs internally. When two ++members of a union exist on the same filesystem, they share the single ++xino file. ++The struct of a xino file is simple, just a sequence of aufs inode ++numbers which is indexed by the lower inode number. ++In the above sample, assume the inode number of /ro/fileA is i111 and ++aufs assigns the inode number i999 for fileA. Then aufs writes 999 as ++4(8) bytes at 111 * 4(8) bytes offset in the xino file. ++ ++When the inode numbers are not contiguous, the xino file will be sparse ++which has a hole in it and doesn't consume as much disk space as it ++might appear. If your branch filesystem consumes disk space for such ++holes, then you should specify 'xino=' option at mounting aufs. ++ ++Aufs has a mount option to free the disk blocks for such holes in XINO ++files on tmpfs or ramdisk. But it is not so effective actually. If you ++meet a problem of disk shortage due to XINO files, then you should try ++"tmpfs-ino.patch" (and "vfs-ino.patch" too) in aufs4-standalone.git. ++The patch localizes the assignment inumbers per tmpfs-mount and avoid ++the holes in XINO files. ++ ++Also a writable branch has three kinds of "whiteout bases". All these ++are existed when the branch is joined to aufs, and their names are ++whiteout-ed doubly, so that users will never see their names in aufs ++hierarchy. ++1. a regular file which will be hardlinked to all whiteouts. ++2. a directory to store a pseudo-link. ++3. a directory to store an "orphan"-ed file temporary. ++ ++1. Whiteout Base ++ When you remove a file on a readonly branch, aufs handles it as a ++ logical deletion and creates a whiteout on the upper writable branch ++ as a hardlink of this file in order not to consume inode on the ++ writable branch. ++2. Pseudo-link Dir ++ See below, Pseudo-link. ++3. Step-Parent Dir ++ When "fileC" exists on the lower readonly branch only and it is ++ opened and removed with its parent dir, and then user writes ++ something into it, then aufs copies-up fileC to this ++ directory. Because there is no other dir to store fileC. After ++ creating a file under this dir, the file is unlinked. ++ ++Because aufs supports manipulating branches, ie. add/delete/change ++dynamically, a branch has its own id. When the branch order changes, ++aufs finds the new index by searching the branch id. ++ ++ ++Pseudo-link ++---------------------------------------------------------------------- ++Assume "fileA" exists on the lower readonly branch only and it is ++hardlinked to "fileB" on the branch. When you write something to fileA, ++aufs copies-up it to the upper writable branch. Additionally aufs ++creates a hardlink under the Pseudo-link Directory of the writable ++branch. The inode of a pseudo-link is kept in aufs super_block as a ++simple list. If fileB is read after unlinking fileA, aufs returns ++filedata from the pseudo-link instead of the lower readonly ++branch. Because the pseudo-link is based upon the inode, to keep the ++inode number by xino (see above) is essentially necessary. ++ ++All the hardlinks under the Pseudo-link Directory of the writable branch ++should be restored in a proper location later. Aufs provides a utility ++to do this. The userspace helpers executed at remounting and unmounting ++aufs by default. ++During this utility is running, it puts aufs into the pseudo-link ++maintenance mode. In this mode, only the process which began the ++maintenance mode (and its child processes) is allowed to operate in ++aufs. Some other processes which are not related to the pseudo-link will ++be allowed to run too, but the rest have to return an error or wait ++until the maintenance mode ends. If a process already acquires an inode ++mutex (in VFS), it has to return an error. ++ ++ ++XIB(external inode number bitmap) ++---------------------------------------------------------------------- ++Addition to the xino file per a branch, aufs has an external inode number ++bitmap in a superblock object. It is also an internal file such like a ++xino file. ++It is a simple bitmap to mark whether the aufs inode number is in-use or ++not. ++To reduce the file I/O, aufs prepares a single memory page to cache xib. ++ ++As well as XINO files, aufs has a feature to truncate/refresh XIB to ++reduce the number of consumed disk blocks for these files. ++ ++ ++Virtual or Vertical Dir, and Readdir in Userspace ++---------------------------------------------------------------------- ++In order to support multiple layers (branches), aufs readdir operation ++constructs a virtual dir block on memory. For readdir, aufs calls ++vfs_readdir() internally for each dir on branches, merges their entries ++with eliminating the whiteout-ed ones, and sets it to file (dir) ++object. So the file object has its entry list until it is closed. The ++entry list will be updated when the file position is zero and becomes ++obsoleted. This decision is made in aufs automatically. ++ ++The dynamically allocated memory block for the name of entries has a ++unit of 512 bytes (by default) and stores the names contiguously (no ++padding). Another block for each entry is handled by kmem_cache too. ++During building dir blocks, aufs creates hash list and judging whether ++the entry is whiteouted by its upper branch or already listed. ++The merged result is cached in the corresponding inode object and ++maintained by a customizable life-time option. ++ ++Some people may call it can be a security hole or invite DoS attack ++since the opened and once readdir-ed dir (file object) holds its entry ++list and becomes a pressure for system memory. But I'd say it is similar ++to files under /proc or /sys. The virtual files in them also holds a ++memory page (generally) while they are opened. When an idea to reduce ++memory for them is introduced, it will be applied to aufs too. ++For those who really hate this situation, I've developed readdir(3) ++library which operates this merging in userspace. You just need to set ++LD_PRELOAD environment variable, and aufs will not consume no memory in ++kernel space for readdir(3). ++ ++ ++Workqueue ++---------------------------------------------------------------------- ++Aufs sometimes requires privilege access to a branch. For instance, ++in copy-up/down operation. When a user process is going to make changes ++to a file which exists in the lower readonly branch only, and the mode ++of one of ancestor directories may not be writable by a user ++process. Here aufs copy-up the file with its ancestors and they may ++require privilege to set its owner/group/mode/etc. ++This is a typical case of a application character of aufs (see ++Introduction). ++ ++Aufs uses workqueue synchronously for this case. It creates its own ++workqueue. The workqueue is a kernel thread and has privilege. Aufs ++passes the request to call mkdir or write (for example), and wait for ++its completion. This approach solves a problem of a signal handler ++simply. ++If aufs didn't adopt the workqueue and changed the privilege of the ++process, then the process may receive the unexpected SIGXFSZ or other ++signals. ++ ++Also aufs uses the system global workqueue ("events" kernel thread) too ++for asynchronous tasks, such like handling inotify/fsnotify, re-creating a ++whiteout base and etc. This is unrelated to a privilege. ++Most of aufs operation tries acquiring a rw_semaphore for aufs ++superblock at the beginning, at the same time waits for the completion ++of all queued asynchronous tasks. ++ ++ ++Whiteout ++---------------------------------------------------------------------- ++The whiteout in aufs is very similar to Unionfs's. That is represented ++by its filename. UnionMount takes an approach of a file mode, but I am ++afraid several utilities (find(1) or something) will have to support it. ++ ++Basically the whiteout represents "logical deletion" which stops aufs to ++lookup further, but also it represents "dir is opaque" which also stop ++further lookup. ++ ++In aufs, rmdir(2) and rename(2) for dir uses whiteout alternatively. ++In order to make several functions in a single systemcall to be ++revertible, aufs adopts an approach to rename a directory to a temporary ++unique whiteouted name. ++For example, in rename(2) dir where the target dir already existed, aufs ++renames the target dir to a temporary unique whiteouted name before the ++actual rename on a branch, and then handles other actions (make it opaque, ++update the attributes, etc). If an error happens in these actions, aufs ++simply renames the whiteouted name back and returns an error. If all are ++succeeded, aufs registers a function to remove the whiteouted unique ++temporary name completely and asynchronously to the system global ++workqueue. ++ ++ ++Copy-up ++---------------------------------------------------------------------- ++It is a well-known feature or concept. ++When user modifies a file on a readonly branch, aufs operate "copy-up" ++internally and makes change to the new file on the upper writable branch. ++When the trigger systemcall does not update the timestamps of the parent ++dir, aufs reverts it after copy-up. ++ ++ ++Move-down (aufs3.9 and later) ++---------------------------------------------------------------------- ++"Copy-up" is one of the essential feature in aufs. It copies a file from ++the lower readonly branch to the upper writable branch when a user ++changes something about the file. ++"Move-down" is an opposite action of copy-up. Basically this action is ++ran manually instead of automatically and internally. ++For desgin and implementation, aufs has to consider these issues. ++- whiteout for the file may exist on the lower branch. ++- ancestor directories may not exist on the lower branch. ++- diropq for the ancestor directories may exist on the upper branch. ++- free space on the lower branch will reduce. ++- another access to the file may happen during moving-down, including ++ UDBA (see "Revalidate Dentry and UDBA"). ++- the file should not be hard-linked nor pseudo-linked. they should be ++ handled by auplink utility later. ++ ++Sometimes users want to move-down a file from the upper writable branch ++to the lower readonly or writable branch. For instance, ++- the free space of the upper writable branch is going to run out. ++- create a new intermediate branch between the upper and lower branch. ++- etc. ++ ++For this purpose, use "aumvdown" command in aufs-util.git. +diff -Naur linux-5.15/Documentation/filesystems/aufs/design/03atomic_open.txt aufs5-linux-aufs5.15/Documentation/filesystems/aufs/design/03atomic_open.txt +--- linux-5.15/Documentation/filesystems/aufs/design/03atomic_open.txt 1970-01-01 03:00:00.000000000 +0300 ++++ aufs5-linux-aufs5.15/Documentation/filesystems/aufs/design/03atomic_open.txt 2022-03-07 13:48:09.000000000 +0300 +@@ -0,0 +1,72 @@ ++ ++# Copyright (C) 2015-2021 Junjiro R. Okajima ++ ++Support for a branch who has its ->atomic_open() ++---------------------------------------------------------------------- ++The filesystems who implement its ->atomic_open() are not majority. For ++example NFSv4 does, and aufs should call NFSv4 ->atomic_open, ++particularly for open(O_CREAT|O_EXCL, 0400) case. Other than ++->atomic_open(), NFSv4 returns an error for this open(2). While I am not ++sure whether all filesystems who have ->atomic_open() behave like this, ++but NFSv4 surely returns the error. ++ ++In order to support ->atomic_open() for aufs, there are a few ++approaches. ++ ++A. Introduce aufs_atomic_open() ++ - calls one of VFS:do_last(), lookup_open() or atomic_open() for ++ branch fs. ++B. Introduce aufs_atomic_open() calling create, open and chmod. this is ++ an aufs user Pip Cet's approach ++ - calls aufs_create(), VFS finish_open() and notify_change(). ++ - pass fake-mode to finish_open(), and then correct the mode by ++ notify_change(). ++C. Extend aufs_open() to call branch fs's ->atomic_open() ++ - no aufs_atomic_open(). ++ - aufs_lookup() registers the TID to an aufs internal object. ++ - aufs_create() does nothing when the matching TID is registered, but ++ registers the mode. ++ - aufs_open() calls branch fs's ->atomic_open() when the matching ++ TID is registered. ++D. Extend aufs_open() to re-try branch fs's ->open() with superuser's ++ credential ++ - no aufs_atomic_open(). ++ - aufs_create() registers the TID to an internal object. this info ++ represents "this process created this file just now." ++ - when aufs gets EACCES from branch fs's ->open(), then confirm the ++ registered TID and re-try open() with superuser's credential. ++ ++Pros and cons for each approach. ++ ++A. ++ - straightforward but highly depends upon VFS internal. ++ - the atomic behavaiour is kept. ++ - some of parameters such as nameidata are hard to reproduce for ++ branch fs. ++ - large overhead. ++B. ++ - easy to implement. ++ - the atomic behavaiour is lost. ++C. ++ - the atomic behavaiour is kept. ++ - dirty and tricky. ++ - VFS checks whether the file is created correctly after calling ++ ->create(), which means this approach doesn't work. ++D. ++ - easy to implement. ++ - the atomic behavaiour is lost. ++ - to open a file with superuser's credential and give it to a user ++ process is a bad idea, since the file object keeps the credential ++ in it. It may affect LSM or something. This approach doesn't work ++ either. ++ ++The approach A is ideal, but it hard to implement. So here is a ++variation of A, which is to be implemented. ++ ++A-1. Introduce aufs_atomic_open() ++ - calls branch fs ->atomic_open() if exists. otherwise calls ++ vfs_create() and finish_open(). ++ - the demerit is that the several checks after branch fs ++ ->atomic_open() are lost. in the ordinary case, the checks are ++ done by VFS:do_last(), lookup_open() and atomic_open(). some can ++ be implemented in aufs, but not all I am afraid. +diff -Naur linux-5.15/Documentation/filesystems/aufs/design/03lookup.txt aufs5-linux-aufs5.15/Documentation/filesystems/aufs/design/03lookup.txt +--- linux-5.15/Documentation/filesystems/aufs/design/03lookup.txt 1970-01-01 03:00:00.000000000 +0300 ++++ aufs5-linux-aufs5.15/Documentation/filesystems/aufs/design/03lookup.txt 2022-03-07 13:48:09.000000000 +0300 +@@ -0,0 +1,100 @@ ++ ++# Copyright (C) 2005-2021 Junjiro R. Okajima ++ ++Lookup in a Branch ++---------------------------------------------------------------------- ++Since aufs has a character of sub-VFS (see Introduction), it operates ++lookup for branches as VFS does. It may be a heavy work. But almost all ++lookup operation in aufs is the simplest case, ie. lookup only an entry ++directly connected to its parent. Digging down the directory hierarchy ++is unnecessary. VFS has a function lookup_one_len() for that use, and ++aufs calls it. ++ ++When a branch is a remote filesystem, aufs basically relies upon its ++->d_revalidate(), also aufs forces the hardest revalidate tests for ++them. ++For d_revalidate, aufs implements three levels of revalidate tests. See ++"Revalidate Dentry and UDBA" in detail. ++ ++ ++Test Only the Highest One for the Directory Permission (dirperm1 option) ++---------------------------------------------------------------------- ++Let's try case study. ++- aufs has two branches, upper readwrite and lower readonly. ++ /au = /rw + /ro ++- "dirA" exists under /ro, but /rw. and its mode is 0700. ++- user invoked "chmod a+rx /au/dirA" ++- the internal copy-up is activated and "/rw/dirA" is created and its ++ permission bits are set to world readable. ++- then "/au/dirA" becomes world readable? ++ ++In this case, /ro/dirA is still 0700 since it exists in readonly branch, ++or it may be a natively readonly filesystem. If aufs respects the lower ++branch, it should not respond readdir request from other users. But user ++allowed it by chmod. Should really aufs rejects showing the entries ++under /ro/dirA? ++ ++To be honest, I don't have a good solution for this case. So aufs ++implements 'dirperm1' and 'nodirperm1' mount options, and leave it to ++users. ++When dirperm1 is specified, aufs checks only the highest one for the ++directory permission, and shows the entries. Otherwise, as usual, checks ++every dir existing on all branches and rejects the request. ++ ++As a side effect, dirperm1 option improves the performance of aufs ++because the number of permission check is reduced when the number of ++branch is many. ++ ++ ++Revalidate Dentry and UDBA (User's Direct Branch Access) ++---------------------------------------------------------------------- ++Generally VFS helpers re-validate a dentry as a part of lookup. ++0. digging down the directory hierarchy. ++1. lock the parent dir by its i_mutex. ++2. lookup the final (child) entry. ++3. revalidate it. ++4. call the actual operation (create, unlink, etc.) ++5. unlock the parent dir ++ ++If the filesystem implements its ->d_revalidate() (step 3), then it is ++called. Actually aufs implements it and checks the dentry on a branch is ++still valid. ++But it is not enough. Because aufs has to release the lock for the ++parent dir on a branch at the end of ->lookup() (step 2) and ++->d_revalidate() (step 3) while the i_mutex of the aufs dir is still ++held by VFS. ++If the file on a branch is changed directly, eg. bypassing aufs, after ++aufs released the lock, then the subsequent operation may cause ++something unpleasant result. ++ ++This situation is a result of VFS architecture, ->lookup() and ++->d_revalidate() is separated. But I never say it is wrong. It is a good ++design from VFS's point of view. It is just not suitable for sub-VFS ++character in aufs. ++ ++Aufs supports such case by three level of revalidation which is ++selectable by user. ++1. Simple Revalidate ++ Addition to the native flow in VFS's, confirm the child-parent ++ relationship on the branch just after locking the parent dir on the ++ branch in the "actual operation" (step 4). When this validation ++ fails, aufs returns EBUSY. ->d_revalidate() (step 3) in aufs still ++ checks the validation of the dentry on branches. ++2. Monitor Changes Internally by Inotify/Fsnotify ++ Addition to above, in the "actual operation" (step 4) aufs re-lookup ++ the dentry on the branch, and returns EBUSY if it finds different ++ dentry. ++ Additionally, aufs sets the inotify/fsnotify watch for every dir on branches ++ during it is in cache. When the event is notified, aufs registers a ++ function to kernel 'events' thread by schedule_work(). And the ++ function sets some special status to the cached aufs dentry and inode ++ private data. If they are not cached, then aufs has nothing to ++ do. When the same file is accessed through aufs (step 0-3) later, ++ aufs will detect the status and refresh all necessary data. ++ In this mode, aufs has to ignore the event which is fired by aufs ++ itself. ++3. No Extra Validation ++ This is the simplest test and doesn't add any additional revalidation ++ test, and skip the revalidation in step 4. It is useful and improves ++ aufs performance when system surely hide the aufs branches from user, ++ by over-mounting something (or another method). +diff -Naur linux-5.15/Documentation/filesystems/aufs/design/04branch.txt aufs5-linux-aufs5.15/Documentation/filesystems/aufs/design/04branch.txt +--- linux-5.15/Documentation/filesystems/aufs/design/04branch.txt 1970-01-01 03:00:00.000000000 +0300 ++++ aufs5-linux-aufs5.15/Documentation/filesystems/aufs/design/04branch.txt 2022-03-07 13:48:09.000000000 +0300 +@@ -0,0 +1,61 @@ ++ ++# Copyright (C) 2005-2021 Junjiro R. Okajima ++ ++Branch Manipulation ++ ++Since aufs supports dynamic branch manipulation, ie. add/remove a branch ++and changing its permission/attribute, there are a lot of works to do. ++ ++ ++Add a Branch ++---------------------------------------------------------------------- ++o Confirm the adding dir exists outside of aufs, including loopback ++ mount, and its various attributes. ++o Initialize the xino file and whiteout bases if necessary. ++ See struct.txt. ++ ++o Check the owner/group/mode of the directory ++ When the owner/group/mode of the adding directory differs from the ++ existing branch, aufs issues a warning because it may impose a ++ security risk. ++ For example, when a upper writable branch has a world writable empty ++ top directory, a malicious user can create any files on the writable ++ branch directly, like copy-up and modify manually. If something like ++ /etc/{passwd,shadow} exists on the lower readonly branch but the upper ++ writable branch, and the writable branch is world-writable, then a ++ malicious guy may create /etc/passwd on the writable branch directly ++ and the infected file will be valid in aufs. ++ I am afraid it can be a security issue, but aufs can do nothing except ++ producing a warning. ++ ++ ++Delete a Branch ++---------------------------------------------------------------------- ++o Confirm the deleting branch is not busy ++ To be general, there is one merit to adopt "remount" interface to ++ manipulate branches. It is to discard caches. At deleting a branch, ++ aufs checks the still cached (and connected) dentries and inodes. If ++ there are any, then they are all in-use. An inode without its ++ corresponding dentry can be alive alone (for example, inotify/fsnotify case). ++ ++ For the cached one, aufs checks whether the same named entry exists on ++ other branches. ++ If the cached one is a directory, because aufs provides a merged view ++ to users, as long as one dir is left on any branch aufs can show the ++ dir to users. In this case, the branch can be removed from aufs. ++ Otherwise aufs rejects deleting the branch. ++ ++ If any file on the deleting branch is opened by aufs, then aufs ++ rejects deleting. ++ ++ ++Modify the Permission of a Branch ++---------------------------------------------------------------------- ++o Re-initialize or remove the xino file and whiteout bases if necessary. ++ See struct.txt. ++ ++o rw --> ro: Confirm the modifying branch is not busy ++ Aufs rejects the request if any of these conditions are true. ++ - a file on the branch is mmap-ed. ++ - a regular file on the branch is opened for write and there is no ++ same named entry on the upper branch. +diff -Naur linux-5.15/Documentation/filesystems/aufs/design/05wbr_policy.txt aufs5-linux-aufs5.15/Documentation/filesystems/aufs/design/05wbr_policy.txt +--- linux-5.15/Documentation/filesystems/aufs/design/05wbr_policy.txt 1970-01-01 03:00:00.000000000 +0300 ++++ aufs5-linux-aufs5.15/Documentation/filesystems/aufs/design/05wbr_policy.txt 2022-03-07 13:48:09.000000000 +0300 +@@ -0,0 +1,51 @@ ++ ++# Copyright (C) 2005-2021 Junjiro R. Okajima ++ ++Policies to Select One among Multiple Writable Branches ++---------------------------------------------------------------------- ++When the number of writable branch is more than one, aufs has to decide ++the target branch for file creation or copy-up. By default, the highest ++writable branch which has the parent (or ancestor) dir of the target ++file is chosen (top-down-parent policy). ++By user's request, aufs implements some other policies to select the ++writable branch, for file creation several policies, round-robin, ++most-free-space, and other policies. For copy-up, top-down-parent, ++bottom-up-parent, bottom-up and others. ++ ++As expected, the round-robin policy selects the branch in circular. When ++you have two writable branches and creates 10 new files, 5 files will be ++created for each branch. mkdir(2) systemcall is an exception. When you ++create 10 new directories, all will be created on the same branch. ++And the most-free-space policy selects the one which has most free ++space among the writable branches. The amount of free space will be ++checked by aufs internally, and users can specify its time interval. ++ ++The policies for copy-up is more simple, ++top-down-parent is equivalent to the same named on in create policy, ++bottom-up-parent selects the writable branch where the parent dir ++exists and the nearest upper one from the copyup-source, ++bottom-up selects the nearest upper writable branch from the ++copyup-source, regardless the existence of the parent dir. ++ ++There are some rules or exceptions to apply these policies. ++- If there is a readonly branch above the policy-selected branch and ++ the parent dir is marked as opaque (a variation of whiteout), or the ++ target (creating) file is whiteout-ed on the upper readonly branch, ++ then the result of the policy is ignored and the target file will be ++ created on the nearest upper writable branch than the readonly branch. ++- If there is a writable branch above the policy-selected branch and ++ the parent dir is marked as opaque or the target file is whiteouted ++ on the branch, then the result of the policy is ignored and the target ++ file will be created on the highest one among the upper writable ++ branches who has diropq or whiteout. In case of whiteout, aufs removes ++ it as usual. ++- link(2) and rename(2) systemcalls are exceptions in every policy. ++ They try selecting the branch where the source exists as possible ++ since copyup a large file will take long time. If it can't be, ++ ie. the branch where the source exists is readonly, then they will ++ follow the copyup policy. ++- There is an exception for rename(2) when the target exists. ++ If the rename target exists, aufs compares the index of the branches ++ where the source and the target exists and selects the higher ++ one. If the selected branch is readonly, then aufs follows the ++ copyup policy. +diff -Naur linux-5.15/Documentation/filesystems/aufs/design/06dirren.dot aufs5-linux-aufs5.15/Documentation/filesystems/aufs/design/06dirren.dot +--- linux-5.15/Documentation/filesystems/aufs/design/06dirren.dot 1970-01-01 03:00:00.000000000 +0300 ++++ aufs5-linux-aufs5.15/Documentation/filesystems/aufs/design/06dirren.dot 2022-03-07 13:48:09.000000000 +0300 +@@ -0,0 +1,31 @@ ++ ++// to view this graph, run dot(1) command in GRAPHVIZ. ++ ++digraph G { ++node [shape=box]; ++whinfo [label="detailed info file\n(lower_brid_root-hinum, h_inum, namelen, old name)"]; ++ ++node [shape=oval]; ++ ++aufs_rename -> whinfo [label="store/remove"]; ++ ++node [shape=oval]; ++inode_list [label="h_inum list in branch\ncache"]; ++ ++node [shape=box]; ++whinode [label="h_inum list file"]; ++ ++node [shape=oval]; ++brmgmt [label="br_add/del/mod/umount"]; ++ ++brmgmt -> inode_list [label="create/remove"]; ++brmgmt -> whinode [label="load/store"]; ++ ++inode_list -> whinode [style=dashed,dir=both]; ++ ++aufs_rename -> inode_list [label="add/del"]; ++ ++aufs_lookup -> inode_list [label="search"]; ++ ++aufs_lookup -> whinfo [label="load/remove"]; ++} +diff -Naur linux-5.15/Documentation/filesystems/aufs/design/06dirren.txt aufs5-linux-aufs5.15/Documentation/filesystems/aufs/design/06dirren.txt +--- linux-5.15/Documentation/filesystems/aufs/design/06dirren.txt 1970-01-01 03:00:00.000000000 +0300 ++++ aufs5-linux-aufs5.15/Documentation/filesystems/aufs/design/06dirren.txt 2022-03-07 13:48:09.000000000 +0300 +@@ -0,0 +1,89 @@ ++ ++# Copyright (C) 2017-2021 Junjiro R. Okajima ++ ++Special handling for renaming a directory (DIRREN) ++---------------------------------------------------------------------- ++First, let's assume we have a simple usecase. ++ ++- /u = /rw + /ro ++- /rw/dirA exists ++- /ro/dirA and /ro/dirA/file exist too ++- there is no dirB on both branches ++- a user issues rename("dirA", "dirB") ++ ++Now, what should aufs behave against this rename(2)? ++There are a few possible cases. ++ ++A. returns EROFS. ++ since dirA exists on a readonly branch which cannot be renamed. ++B. returns EXDEV. ++ it is possible to copy-up dirA (only the dir itself), but the child ++ entries ("file" in this case) should not be. it must be a bad ++ approach to copy-up recursively. ++C. returns a success. ++ even the branch /ro is readonly, aufs tries renaming it. Obviously it ++ is a violation of aufs' policy. ++D. construct an extra information which indicates that /ro/dirA should ++ be handled as the name of dirB. ++ overlayfs has a similar feature called REDIRECT. ++ ++Until now, aufs implements the case B only which returns EXDEV, and ++expects the userspace application behaves like mv(1) which tries ++issueing rename(2) recursively. ++ ++A new aufs feature called DIRREN is introduced which implements the case ++D. There are several "extra information" added. ++ ++1. detailed info per renamed directory ++ path: /rw/dirB/$AUFS_WH_DR_INFO_PFX. ++2. the inode-number list of directories on a branch ++ path: /rw/dirB/$AUFS_WH_DR_BRHINO ++ ++The filename of "detailed info per directory" represents the lower ++branch, and its format is ++- a type of the branch id ++ one of these. ++ + uuid (not implemented yet) ++ + fsid ++ + dev ++- the inode-number of the branch root dir ++ ++And it contains these info in a single regular file. ++- magic number ++- branch's inode-number of the logically renamed dir ++- the name of the before-renamed dir ++ ++The "detailed info per directory" file is created in aufs rename(2), and ++loaded in any lookup. ++The info is considered in lookup for the matching case only. Here ++"matching" means that the root of branch (in the info filename) is same ++to the current looking-up branch. After looking-up the before-renamed ++name, the inode-number is compared. And the matched dentry is used. ++ ++The "inode-number list of directories" is a regular file which contains ++simply the inode-numbers on the branch. The file is created or updated ++in removing the branch, and loaded in adding the branch. Its lifetime is ++equal to the branch. ++The list is refered in lookup, and when the current target inode is ++found in the list, the aufs tries loading the "detailed info per ++directory" and get the changed and valid name of the dir. ++ ++Theoretically these "extra informaiton" may be able to be put into XATTR ++in the dir inode. But aufs doesn't choose this way because ++1. XATTR may not be supported by the branch (or its configuration) ++2. XATTR may have its size limit. ++3. XATTR may be less easy to convert than a regular file, when the ++ format of the info is changed in the future. ++At the same time, I agree that the regular file approach is much slower ++than XATTR approach. So, in the future, aufs may take the XATTR or other ++better approach. ++ ++This DIRREN feature is enabled by aufs configuration, and is activated ++by a new mount option. ++ ++For the more complicated case, there is a work with UDBA option, which ++is to dected the direct access to the branches (by-passing aufs) and to ++maintain the cashes in aufs. Since a single cached aufs dentry may ++contains two names, before- and after-rename, the name comparision in ++UDBA handler may not work correctly. In this case, the behaviour will be ++equivalen to udba=reval case. +diff -Naur linux-5.15/Documentation/filesystems/aufs/design/06fhsm.txt aufs5-linux-aufs5.15/Documentation/filesystems/aufs/design/06fhsm.txt +--- linux-5.15/Documentation/filesystems/aufs/design/06fhsm.txt 1970-01-01 03:00:00.000000000 +0300 ++++ aufs5-linux-aufs5.15/Documentation/filesystems/aufs/design/06fhsm.txt 2022-03-07 13:48:09.000000000 +0300 +@@ -0,0 +1,105 @@ ++ ++# Copyright (C) 2011-2021 Junjiro R. Okajima ++ ++File-based Hierarchical Storage Management (FHSM) ++---------------------------------------------------------------------- ++Hierarchical Storage Management (or HSM) is a well-known feature in the ++storage world. Aufs provides this feature as file-based with multiple ++writable branches, based upon the principle of "Colder, the Lower". ++Here the word "colder" means that the less used files, and "lower" means ++that the position in the order of the stacked branches vertically. ++These multiple writable branches are prioritized, ie. the topmost one ++should be the fastest drive and be used heavily. ++ ++o Characters in aufs FHSM story ++- aufs itself and a new branch attribute. ++- a new ioctl interface to move-down and to establish a connection with ++ the daemon ("move-down" is a converse of "copy-up"). ++- userspace tool and daemon. ++ ++The userspace daemon establishes a connection with aufs and waits for ++the notification. The notified information is very similar to struct ++statfs containing the number of consumed blocks and inodes. ++When the consumed blocks/inodes of a branch exceeds the user-specified ++upper watermark, the daemon activates its move-down process until the ++consumed blocks/inodes reaches the user-specified lower watermark. ++ ++The actual move-down is done by aufs based upon the request from ++user-space since we need to maintain the inode number and the internal ++pointer arrays in aufs. ++ ++Currently aufs FHSM handles the regular files only. Additionally they ++must not be hard-linked nor pseudo-linked. ++ ++ ++o Cowork of aufs and the user-space daemon ++ During the userspace daemon established the connection, aufs sends a ++ small notification to it whenever aufs writes something into the ++ writable branch. But it may cost high since aufs issues statfs(2) ++ internally. So user can specify a new option to cache the ++ info. Actually the notification is controlled by these factors. ++ + the specified cache time. ++ + classified as "force" by aufs internally. ++ Until the specified time expires, aufs doesn't send the info ++ except the forced cases. When aufs decide forcing, the info is always ++ notified to userspace. ++ For example, the number of free inodes is generally large enough and ++ the shortage of it happens rarely. So aufs doesn't force the ++ notification when creating a new file, directory and others. This is ++ the typical case which aufs doesn't force. ++ When aufs writes the actual filedata and the files consumes any of new ++ blocks, the aufs forces notifying. ++ ++ ++o Interfaces in aufs ++- New branch attribute. ++ + fhsm ++ Specifies that the branch is managed by FHSM feature. In other word, ++ participant in the FHSM. ++ When nofhsm is set to the branch, it will not be the source/target ++ branch of the move-down operation. This attribute is set ++ independently from coo and moo attributes, and if you want full ++ FHSM, you should specify them as well. ++- New mount option. ++ + fhsm_sec ++ Specifies a second to suppress many less important info to be ++ notified. ++- New ioctl. ++ + AUFS_CTL_FHSM_FD ++ create a new file descriptor which userspace can read the notification ++ (a subset of struct statfs) from aufs. ++- Module parameter 'brs' ++ It has to be set to 1. Otherwise the new mount option 'fhsm' will not ++ be set. ++- mount helpers /sbin/mount.aufs and /sbin/umount.aufs ++ When there are two or more branches with fhsm attributes, ++ /sbin/mount.aufs invokes the user-space daemon and /sbin/umount.aufs ++ terminates it. As a result of remounting and branch-manipulation, the ++ number of branches with fhsm attribute can be one. In this case, ++ /sbin/mount.aufs will terminate the user-space daemon. ++ ++ ++Finally the operation is done as these steps in kernel-space. ++- make sure that, ++ + no one else is using the file. ++ + the file is not hard-linked. ++ + the file is not pseudo-linked. ++ + the file is a regular file. ++ + the parent dir is not opaqued. ++- find the target writable branch. ++- make sure the file is not whiteout-ed by the upper (than the target) ++ branch. ++- make the parent dir on the target branch. ++- mutex lock the inode on the branch. ++- unlink the whiteout on the target branch (if exists). ++- lookup and create the whiteout-ed temporary name on the target branch. ++- copy the file as the whiteout-ed temporary name on the target branch. ++- rename the whiteout-ed temporary name to the original name. ++- unlink the file on the source branch. ++- maintain the internal pointer array and the external inode number ++ table (XINO). ++- maintain the timestamps and other attributes of the parent dir and the ++ file. ++ ++And of course, in every step, an error may happen. So the operation ++should restore the original file state after an error happens. +diff -Naur linux-5.15/Documentation/filesystems/aufs/design/06mmap.txt aufs5-linux-aufs5.15/Documentation/filesystems/aufs/design/06mmap.txt +--- linux-5.15/Documentation/filesystems/aufs/design/06mmap.txt 1970-01-01 03:00:00.000000000 +0300 ++++ aufs5-linux-aufs5.15/Documentation/filesystems/aufs/design/06mmap.txt 2022-03-07 13:48:09.000000000 +0300 +@@ -0,0 +1,59 @@ ++ ++# Copyright (C) 2005-2021 Junjiro R. Okajima ++ ++mmap(2) -- File Memory Mapping ++---------------------------------------------------------------------- ++In aufs, the file-mapped pages are handled by a branch fs directly, no ++interaction with aufs. It means aufs_mmap() calls the branch fs's ++->mmap(). ++This approach is simple and good, but there is one problem. ++Under /proc, several entries show the mmapped files by its path (with ++device and inode number), and the printed path will be the path on the ++branch fs's instead of virtual aufs's. ++This is not a problem in most cases, but some utilities lsof(1) (and its ++user) may expect the path on aufs. ++ ++To address this issue, aufs adds a new member called vm_prfile in struct ++vm_area_struct (and struct vm_region). The original vm_file points to ++the file on the branch fs in order to handle everything correctly as ++usual. The new vm_prfile points to a virtual file in aufs, and the ++show-functions in procfs refers to vm_prfile if it is set. ++Also we need to maintain several other places where touching vm_file ++such like ++- fork()/clone() copies vma and the reference count of vm_file is ++ incremented. ++- merging vma maintains the ref count too. ++ ++This is not a good approach. It just fakes the printed path. But it ++leaves all behaviour around f_mapping unchanged. This is surely an ++advantage. ++Actually aufs had adopted another complicated approach which calls ++generic_file_mmap() and handles struct vm_operations_struct. In this ++approach, aufs met a hard problem and I could not solve it without ++switching the approach. ++ ++There may be one more another approach which is ++- bind-mount the branch-root onto the aufs-root internally ++- grab the new vfsmount (ie. struct mount) ++- lazy-umount the branch-root internally ++- in open(2) the aufs-file, open the branch-file with the hidden ++ vfsmount (instead of the original branch's vfsmount) ++- ideally this "bind-mount and lazy-umount" should be done atomically, ++ but it may be possible from userspace by the mount helper. ++ ++Adding the internal hidden vfsmount and using it in opening a file, the ++file path under /proc will be printed correctly. This approach looks ++smarter, but is not possible I am afraid. ++- aufs-root may be bind-mount later. when it happens, another hidden ++ vfsmount will be required. ++- it is hard to get the chance to bind-mount and lazy-umount ++ + in kernel-space, FS can have vfsmount in open(2) via ++ file->f_path, and aufs can know its vfsmount. But several locks are ++ already acquired, and if aufs tries to bind-mount and lazy-umount ++ here, then it may cause a deadlock. ++ + in user-space, bind-mount doesn't invoke the mount helper. ++- since /proc shows dev and ino, aufs has to give vma these info. it ++ means a new member vm_prinode will be necessary. this is essentially ++ equivalent to vm_prfile described above. ++ ++I have to give up this "looks-smater" approach. +diff -Naur linux-5.15/Documentation/filesystems/aufs/design/06xattr.txt aufs5-linux-aufs5.15/Documentation/filesystems/aufs/design/06xattr.txt +--- linux-5.15/Documentation/filesystems/aufs/design/06xattr.txt 1970-01-01 03:00:00.000000000 +0300 ++++ aufs5-linux-aufs5.15/Documentation/filesystems/aufs/design/06xattr.txt 2022-03-07 13:48:09.000000000 +0300 +@@ -0,0 +1,81 @@ ++ ++# Copyright (C) 2014-2021 Junjiro R. Okajima ++ ++Listing XATTR/EA and getting the value ++---------------------------------------------------------------------- ++For the inode standard attributes (owner, group, timestamps, etc.), aufs ++shows the values from the topmost existing file. This behaviour is good ++for the non-dir entries since the bahaviour exactly matches the shown ++information. But for the directories, aufs considers all the same named ++entries on the lower branches. Which means, if one of the lower entry ++rejects readdir call, then aufs returns an error even if the topmost ++entry allows it. This behaviour is necessary to respect the branch fs's ++security, but can make users confused since the user-visible standard ++attributes don't match the behaviour. ++To address this issue, aufs has a mount option called dirperm1 which ++checks the permission for the topmost entry only, and ignores the lower ++entry's permission. ++ ++A similar issue can happen around XATTR. ++getxattr(2) and listxattr(2) families behave as if dirperm1 option is ++always set. Otherwise these very unpleasant situation would happen. ++- listxattr(2) may return the duplicated entries. ++- users may not be able to remove or reset the XATTR forever, ++ ++ ++XATTR/EA support in the internal (copy,move)-(up,down) ++---------------------------------------------------------------------- ++Generally the extended attributes of inode are categorized as these. ++- "security" for LSM and capability. ++- "system" for posix ACL, 'acl' mount option is required for the branch ++ fs generally. ++- "trusted" for userspace, CAP_SYS_ADMIN is required. ++- "user" for userspace, 'user_xattr' mount option is required for the ++ branch fs generally. ++ ++Moreover there are some other categories. Aufs handles these rather ++unpopular categories as the ordinary ones, ie. there is no special ++condition nor exception. ++ ++In copy-up, the support for XATTR on the dst branch may differ from the ++src branch. In this case, the copy-up operation will get an error and ++the original user operation which triggered the copy-up will fail. It ++can happen that even all copy-up will fail. ++When both of src and dst branches support XATTR and if an error occurs ++during copying XATTR, then the copy-up should fail obviously. That is a ++good reason and aufs should return an error to userspace. But when only ++the src branch support that XATTR, aufs should not return an error. ++For example, the src branch supports ACL but the dst branch doesn't ++because the dst branch may natively un-support it or temporary ++un-support it due to "noacl" mount option. Of course, the dst branch fs ++may NOT return an error even if the XATTR is not supported. It is ++totally up to the branch fs. ++ ++Anyway when the aufs internal copy-up gets an error from the dst branch ++fs, then aufs tries removing the just copied entry and returns the error ++to the userspace. The worst case of this situation will be all copy-up ++will fail. ++ ++For the copy-up operation, there two basic approaches. ++- copy the specified XATTR only (by category above), and return the ++ error unconditionally if it happens. ++- copy all XATTR, and ignore the error on the specified category only. ++ ++In order to support XATTR and to implement the correct behaviour, aufs ++chooses the latter approach and introduces some new branch attributes, ++"icexsec", "icexsys", "icextr", "icexusr", and "icexoth". ++They correspond to the XATTR namespaces (see above). Additionally, to be ++convenient, "icex" is also provided which means all "icex*" attributes ++are set (here the word "icex" stands for "ignore copy-error on XATTR"). ++ ++The meaning of these attributes is to ignore the error from setting ++XATTR on that branch. ++Note that aufs tries copying all XATTR unconditionally, and ignores the ++error from the dst branch according to the specified attributes. ++ ++Some XATTR may have its default value. The default value may come from ++the parent dir or the environment. If the default value is set at the ++file creating-time, it will be overwritten by copy-up. ++Some contradiction may happen I am afraid. ++Do we need another attribute to stop copying XATTR? I am unsure. For ++now, aufs implements the branch attributes to ignore the error. +diff -Naur linux-5.15/Documentation/filesystems/aufs/design/07export.txt aufs5-linux-aufs5.15/Documentation/filesystems/aufs/design/07export.txt +--- linux-5.15/Documentation/filesystems/aufs/design/07export.txt 1970-01-01 03:00:00.000000000 +0300 ++++ aufs5-linux-aufs5.15/Documentation/filesystems/aufs/design/07export.txt 2022-03-07 13:48:09.000000000 +0300 +@@ -0,0 +1,45 @@ ++ ++# Copyright (C) 2005-2021 Junjiro R. Okajima ++ ++Export Aufs via NFS ++---------------------------------------------------------------------- ++Here is an approach. ++- like xino/xib, add a new file 'xigen' which stores aufs inode ++ generation. ++- iget_locked(): initialize aufs inode generation for a new inode, and ++ store it in xigen file. ++- destroy_inode(): increment aufs inode generation and store it in xigen ++ file. it is necessary even if it is not unlinked, because any data of ++ inode may be changed by UDBA. ++- encode_fh(): for a root dir, simply return FILEID_ROOT. otherwise ++ build file handle by ++ + branch id (4 bytes) ++ + superblock generation (4 bytes) ++ + inode number (4 or 8 bytes) ++ + parent dir inode number (4 or 8 bytes) ++ + inode generation (4 bytes)) ++ + return value of exportfs_encode_fh() for the parent on a branch (4 ++ bytes) ++ + file handle for a branch (by exportfs_encode_fh()) ++- fh_to_dentry(): ++ + find the index of a branch from its id in handle, and check it is ++ still exist in aufs. ++ + 1st level: get the inode number from handle and search it in cache. ++ + 2nd level: if not found in cache, get the parent inode number from ++ the handle and search it in cache. and then open the found parent ++ dir, find the matching inode number by vfs_readdir() and get its ++ name, and call lookup_one_len() for the target dentry. ++ + 3rd level: if the parent dir is not cached, call ++ exportfs_decode_fh() for a branch and get the parent on a branch, ++ build a pathname of it, convert it a pathname in aufs, call ++ path_lookup(). now aufs gets a parent dir dentry, then handle it as ++ the 2nd level. ++ + to open the dir, aufs needs struct vfsmount. aufs keeps vfsmount ++ for every branch, but not itself. to get this, (currently) aufs ++ searches in current->nsproxy->mnt_ns list. it may not be a good ++ idea, but I didn't get other approach. ++ + test the generation of the gotten inode. ++- every inode operation: they may get EBUSY due to UDBA. in this case, ++ convert it into ESTALE for NFSD. ++- readdir(): call lockdep_on/off() because filldir in NFSD calls ++ lookup_one_len(), vfs_getattr(), encode_fh() and others. +diff -Naur linux-5.15/Documentation/filesystems/aufs/design/08shwh.txt aufs5-linux-aufs5.15/Documentation/filesystems/aufs/design/08shwh.txt +--- linux-5.15/Documentation/filesystems/aufs/design/08shwh.txt 1970-01-01 03:00:00.000000000 +0300 ++++ aufs5-linux-aufs5.15/Documentation/filesystems/aufs/design/08shwh.txt 2022-03-07 13:48:09.000000000 +0300 +@@ -0,0 +1,39 @@ ++ ++# Copyright (C) 2005-2021 Junjiro R. Okajima ++ ++Show Whiteout Mode (shwh) ++---------------------------------------------------------------------- ++Generally aufs hides the name of whiteouts. But in some cases, to show ++them is very useful for users. For instance, creating a new middle layer ++(branch) by merging existing layers. ++ ++(borrowing aufs1 HOW-TO from a user, Michael Towers) ++When you have three branches, ++- Bottom: 'system', squashfs (underlying base system), read-only ++- Middle: 'mods', squashfs, read-only ++- Top: 'overlay', ram (tmpfs), read-write ++ ++The top layer is loaded at boot time and saved at shutdown, to preserve ++the changes made to the system during the session. ++When larger changes have been made, or smaller changes have accumulated, ++the size of the saved top layer data grows. At this point, it would be ++nice to be able to merge the two overlay branches ('mods' and 'overlay') ++and rewrite the 'mods' squashfs, clearing the top layer and thus ++restoring save and load speed. ++ ++This merging is simplified by the use of another aufs mount, of just the ++two overlay branches using the 'shwh' option. ++# mount -t aufs -o ro,shwh,br:/livesys/overlay=ro+wh:/livesys/mods=rr+wh \ ++ aufs /livesys/merge_union ++ ++A merged view of these two branches is then available at ++/livesys/merge_union, and the new feature is that the whiteouts are ++visible! ++Note that in 'shwh' mode the aufs mount must be 'ro', which will disable ++writing to all branches. Also the default mode for all branches is 'ro'. ++It is now possible to save the combined contents of the two overlay ++branches to a new squashfs, e.g.: ++# mksquashfs /livesys/merge_union /path/to/newmods.squash ++ ++This new squashfs archive can be stored on the boot device and the ++initramfs will use it to replace the old one at the next boot. +diff -Naur linux-5.15/Documentation/filesystems/aufs/design/10dynop.txt aufs5-linux-aufs5.15/Documentation/filesystems/aufs/design/10dynop.txt +--- linux-5.15/Documentation/filesystems/aufs/design/10dynop.txt 1970-01-01 03:00:00.000000000 +0300 ++++ aufs5-linux-aufs5.15/Documentation/filesystems/aufs/design/10dynop.txt 2022-03-07 13:48:09.000000000 +0300 +@@ -0,0 +1,34 @@ ++ ++# Copyright (C) 2010-2021 Junjiro R. Okajima ++ ++Dynamically customizable FS operations ++---------------------------------------------------------------------- ++Generally FS operations (struct inode_operations, struct ++address_space_operations, struct file_operations, etc.) are defined as ++"static const", but it never means that FS have only one set of ++operation. Some FS have multiple sets of them. For instance, ext2 has ++three sets, one for XIP, for NOBH, and for normal. ++Since aufs overrides and redirects these operations, sometimes aufs has ++to change its behaviour according to the branch FS type. More importantly ++VFS acts differently if a function (member in the struct) is set or ++not. It means aufs should have several sets of operations and select one ++among them according to the branch FS definition. ++ ++In order to solve this problem and not to affect the behaviour of VFS, ++aufs defines these operations dynamically. For instance, aufs defines ++dummy direct_IO function for struct address_space_operations, but it may ++not be set to the address_space_operations actually. When the branch FS ++doesn't have it, aufs doesn't set it to its address_space_operations ++while the function definition itself is still alive. So the behaviour ++itself will not change, and it will return an error when direct_IO is ++not set. ++ ++The lifetime of these dynamically generated operation object is ++maintained by aufs branch object. When the branch is removed from aufs, ++the reference counter of the object is decremented. When it reaches ++zero, the dynamically generated operation object will be freed. ++ ++This approach is designed to support AIO (io_submit), Direct I/O and ++XIP (DAX) mainly. ++Currently this approach is applied to address_space_operations for ++regular files only. +diff -Naur linux-5.15/Documentation/filesystems/aufs/README aufs5-linux-aufs5.15/Documentation/filesystems/aufs/README +--- linux-5.15/Documentation/filesystems/aufs/README 1970-01-01 03:00:00.000000000 +0300 ++++ aufs5-linux-aufs5.15/Documentation/filesystems/aufs/README 2022-03-07 13:48:09.000000000 +0300 +@@ -0,0 +1,396 @@ ++ ++Aufs5 -- advanced multi layered unification filesystem version 5.x ++http://aufs.sf.net ++Junjiro R. Okajima ++ ++ ++0. Introduction ++---------------------------------------- ++In the early days, aufs was entirely re-designed and re-implemented ++Unionfs Version 1.x series. Adding many original ideas, approaches, ++improvements and implementations, it became totally different from ++Unionfs while keeping the basic features. ++Later, Unionfs Version 2.x series began taking some of the same ++approaches to aufs1's. ++Unionfs was being developed by Professor Erez Zadok at Stony Brook ++University and his team. ++ ++Aufs5 supports linux-v5.0 and later, If you want older kernel version ++support, ++- for linux-v4.x series, try aufs4-linux.git or aufs4-standalone.git ++- for linux-v3.x series, try aufs3-linux.git or aufs3-standalone.git ++- for linux-v2.6.16 and later, try aufs2-2.6.git, aufs2-standalone.git ++ or aufs1 from CVS on SourceForge. ++ ++Note: it becomes clear that "Aufs was rejected. Let's give it up." ++ According to Christoph Hellwig, linux rejects all union-type ++ filesystems but UnionMount. ++ ++ ++PS. Al Viro seems have a plan to merge aufs as well as overlayfs and ++ UnionMount, and he pointed out an issue around a directory mutex ++ lock and aufs addressed it. But it is still unsure whether aufs will ++ be merged (or any other union solution). ++ ++ ++ ++1. Features ++---------------------------------------- ++- unite several directories into a single virtual filesystem. The member ++ directory is called as a branch. ++- you can specify the permission flags to the branch, which are 'readonly', ++ 'readwrite' and 'whiteout-able.' ++- by upper writable branch, internal copyup and whiteout, files/dirs on ++ readonly branch are modifiable logically. ++- dynamic branch manipulation, add, del. ++- etc... ++ ++Also there are many enhancements in aufs, such as: ++- test only the highest one for the directory permission (dirperm1) ++- copyup on open (coo=) ++- 'move' policy for copy-up between two writable branches, after ++ checking free space. ++- xattr, acl ++- readdir(3) in userspace. ++- keep inode number by external inode number table ++- keep the timestamps of file/dir in internal copyup operation ++- seekable directory, supporting NFS readdir. ++- whiteout is hardlinked in order to reduce the consumption of inodes ++ on branch ++- do not copyup, nor create a whiteout when it is unnecessary ++- revert a single systemcall when an error occurs in aufs ++- remount interface instead of ioctl ++- maintain /etc/mtab by an external command, /sbin/mount.aufs. ++- loopback mounted filesystem as a branch ++- kernel thread for removing the dir who has a plenty of whiteouts ++- support copyup sparse file (a file which has a 'hole' in it) ++- default permission flags for branches ++- selectable permission flags for ro branch, whether whiteout can ++ exist or not ++- export via NFS. ++- support /fs/aufs and /aufs. ++- support multiple writable branches, some policies to select one ++ among multiple writable branches. ++- a new semantics for link(2) and rename(2) to support multiple ++ writable branches. ++- no glibc changes are required. ++- pseudo hardlink (hardlink over branches) ++- allow a direct access manually to a file on branch, e.g. bypassing aufs. ++ including NFS or remote filesystem branch. ++- userspace wrapper for pathconf(3)/fpathconf(3) with _PC_LINK_MAX. ++- and more... ++ ++Currently these features are dropped temporary from aufs5. ++See design/08plan.txt in detail. ++- nested mount, i.e. aufs as readonly no-whiteout branch of another aufs ++ (robr) ++- statistics of aufs thread (/sys/fs/aufs/stat) ++ ++Features or just an idea in the future (see also design/*.txt), ++- reorder the branch index without del/re-add. ++- permanent xino files for NFSD ++- an option for refreshing the opened files after add/del branches ++- light version, without branch manipulation. (unnecessary?) ++- copyup in userspace ++- inotify in userspace ++- readv/writev ++ ++ ++2. Download ++---------------------------------------- ++There are three GIT trees for aufs5, aufs5-linux.git, ++aufs5-standalone.git, and aufs-util.git. Note that there is no "5" in ++"aufs-util.git." ++While the aufs-util is always necessary, you need either of aufs5-linux ++or aufs5-standalone. ++ ++The aufs5-linux tree includes the whole linux mainline GIT tree, ++git://git.kernel.org/.../torvalds/linux.git. ++And you cannot select CONFIG_AUFS_FS=m for this version, eg. you cannot ++build aufs5 as an external kernel module. ++Several extra patches are not included in this tree. Only ++aufs5-standalone tree contains them. They are described in the later ++section "Configuration and Compilation." ++ ++On the other hand, the aufs5-standalone tree has only aufs source files ++and necessary patches, and you can select CONFIG_AUFS_FS=m. ++But you need to apply all aufs patches manually. ++ ++You will find GIT branches whose name is in form of "aufs5.x" where "x" ++represents the linux kernel version, "linux-5.x". For instance, ++"aufs5.0" is for linux-5.0. For latest "linux-5.x-rcN", use ++"aufs5.x-rcN" branch. ++ ++o aufs5-linux tree ++$ git clone --reference /your/linux/git/tree \ ++ git://github.com/sfjro/aufs5-linux.git aufs5-linux.git ++- if you don't have linux GIT tree, then remove "--reference ..." ++$ cd aufs5-linux.git ++$ git checkout origin/aufs5.0 ++ ++Or You may want to directly git-pull aufs into your linux GIT tree, and ++leave the patch-work to GIT. ++$ cd /your/linux/git/tree ++$ git remote add aufs5 git://github.com/sfjro/aufs5-linux.git ++$ git fetch aufs5 ++$ git checkout -b my5.0 v5.0 ++$ (add your local change...) ++$ git pull aufs5 aufs5.0 ++- now you have v5.0 + your_changes + aufs5.0 in you my5.0 branch. ++- you may need to solve some conflicts between your_changes and ++ aufs5.0. in this case, git-rerere is recommended so that you can ++ solve the similar conflicts automatically when you upgrade to 5.1 or ++ later in the future. ++ ++o aufs5-standalone tree ++$ git clone git://github.com/sfjro/aufs5-standalone.git aufs5-standalone.git ++$ cd aufs5-standalone.git ++$ git checkout origin/aufs5.0 ++ ++o aufs-util tree ++$ git clone git://git.code.sf.net/p/aufs/aufs-util aufs-util.git ++- note that the public aufs-util.git is on SourceForge instead of ++ GitHUB. ++$ cd aufs-util.git ++$ git checkout origin/aufs5.0 ++ ++Note: The 5.x-rcN branch is to be used with `rc' kernel versions ONLY. ++The minor version number, 'x' in '5.x', of aufs may not always ++follow the minor version number of the kernel. ++Because changes in the kernel that cause the use of a new ++minor version number do not always require changes to aufs-util. ++ ++Since aufs-util has its own minor version number, you may not be ++able to find a GIT branch in aufs-util for your kernel's ++exact minor version number. ++In this case, you should git-checkout the branch for the ++nearest lower number. ++ ++For (an unreleased) example: ++If you are using "linux-5.10" and the "aufs5.10" branch ++does not exist in aufs-util repository, then "aufs5.9", "aufs5.8" ++or something numerically smaller is the branch for your kernel. ++ ++Also you can view all branches by ++ $ git branch -a ++ ++ ++3. Configuration and Compilation ++---------------------------------------- ++Make sure you have git-checkout'ed the correct branch. ++ ++For aufs5-linux tree, ++- enable CONFIG_AUFS_FS. ++- set other aufs configurations if necessary. ++- for aufs5.13 and later ++ Because aufs is not only an ordinary filesystem (callee of VFS), but ++ also a caller of VFS functions for branch filesystems, subclassing of ++ the internal locks for LOCKDEP is necessary. LOCKDEP is a debugging ++ feature of linux kernel. If you enable CONFIG_LOCKDEP, then you will ++ need to customize some LOCKDEP numbers. Here are what I use on my ++ test environment. ++ CONFIG_LOCKDEP_BITS=21 ++ CONFIG_LOCKDEP_CHAINS_BITS=21 ++ CONFIG_LOCKDEP_STACK_TRACE_BITS=24 ++ ++For aufs5-standalone tree, ++There are several ways to build. ++ ++1. ++- apply ./aufs5-kbuild.patch to your kernel source files. ++- apply ./aufs5-base.patch too. ++- apply ./aufs5-mmap.patch too. ++- apply ./aufs5-standalone.patch too, if you have a plan to set ++ CONFIG_AUFS_FS=m. otherwise you don't need ./aufs5-standalone.patch. ++- copy ./{Documentation,fs,include/uapi/linux/aufs_type.h} files to your ++ kernel source tree. Never copy $PWD/include/uapi/linux/Kbuild. ++- enable CONFIG_AUFS_FS, you can select either ++ =m or =y. ++- and build your kernel as usual. ++- install the built kernel. ++- install the header files too by "make headers_install" to the ++ directory where you specify. By default, it is $PWD/usr. ++ "make help" shows a brief note for headers_install. ++- and reboot your system. ++ ++2. ++- module only (CONFIG_AUFS_FS=m). ++- apply ./aufs5-base.patch to your kernel source files. ++- apply ./aufs5-mmap.patch too. ++- apply ./aufs5-standalone.patch too. ++- build your kernel, don't forget "make headers_install", and reboot. ++- edit ./config.mk and set other aufs configurations if necessary. ++ Note: You should read $PWD/fs/aufs/Kconfig carefully which describes ++ every aufs configurations. ++- build the module by simple "make". ++- you can specify ${KDIR} make variable which points to your kernel ++ source tree. ++- install the files ++ + run "make install" to install the aufs module, or copy the built ++ $PWD/aufs.ko to /lib/modules/... and run depmod -a (or reboot simply). ++ + run "make install_headers" (instead of headers_install) to install ++ the modified aufs header file (you can specify DESTDIR which is ++ available in aufs standalone version's Makefile only), or copy ++ $PWD/usr/include/linux/aufs_type.h to /usr/include/linux or wherever ++ you like manually. By default, the target directory is $PWD/usr. ++- no need to apply aufs5-kbuild.patch, nor copying source files to your ++ kernel source tree. ++ ++Note: The header file aufs_type.h is necessary to build aufs-util ++ as well as "make headers_install" in the kernel source tree. ++ headers_install is subject to be forgotten, but it is essentially ++ necessary, not only for building aufs-util. ++ You may not meet problems without headers_install in some older ++ version though. ++ ++And then, ++- read README in aufs-util, build and install it ++- note that your distribution may contain an obsoleted version of ++ aufs_type.h in /usr/include/linux or something. When you build aufs ++ utilities, make sure that your compiler refers the correct aufs header ++ file which is built by "make headers_install." ++- if you want to use readdir(3) in userspace or pathconf(3) wrapper, ++ then run "make install_ulib" too. And refer to the aufs manual in ++ detail. ++ ++There several other patches in aufs5-standalone.git. They are all ++optional. When you meet some problems, they will help you. ++- aufs5-loopback.patch ++ Supports a nested loopback mount in a branch-fs. This patch is ++ unnecessary until aufs produces a message like "you may want to try ++ another patch for loopback file". ++- vfs-ino.patch ++ Modifies a system global kernel internal function get_next_ino() in ++ order to stop assigning 0 for an inode-number. Not directly related to ++ aufs, but recommended generally. ++- tmpfs-idr.patch ++ Keeps the tmpfs inode number as the lowest value. Effective to reduce ++ the size of aufs XINO files for tmpfs branch. Also it prevents the ++ duplication of inode number, which is important for backup tools and ++ other utilities. When you find aufs XINO files for tmpfs branch ++ growing too much, try this patch. ++ ++ ++4. Usage ++---------------------------------------- ++At first, make sure aufs-util are installed, and please read the aufs ++manual, aufs.5 in aufs-util.git tree. ++$ man -l aufs.5 ++ ++And then, ++$ mkdir /tmp/rw /tmp/aufs ++# mount -t aufs -o br=/tmp/rw:${HOME} none /tmp/aufs ++ ++Here is another example. The result is equivalent. ++# mount -t aufs -o br=/tmp/rw=rw:${HOME}=ro none /tmp/aufs ++ Or ++# mount -t aufs -o br:/tmp/rw none /tmp/aufs ++# mount -o remount,append:${HOME} /tmp/aufs ++ ++Then, you can see whole tree of your home dir through /tmp/aufs. If ++you modify a file under /tmp/aufs, the one on your home directory is ++not affected, instead the same named file will be newly created under ++/tmp/rw. And all of your modification to a file will be applied to ++the one under /tmp/rw. This is called the file based Copy on Write ++(COW) method. ++Aufs mount options are described in aufs.5. ++If you run chroot or something and make your aufs as a root directory, ++then you need to customize the shutdown script. See the aufs manual in ++detail. ++ ++Additionally, there are some sample usages of aufs which are a ++diskless system with network booting, and LiveCD over NFS. ++See sample dir in CVS tree on SourceForge. ++ ++ ++5. Contact ++---------------------------------------- ++When you have any problems or strange behaviour in aufs, please let me ++know with: ++- /proc/mounts (instead of the output of mount(8)) ++- /sys/module/aufs/* ++- /sys/fs/aufs/* (if you have them) ++- /debug/aufs/* (if you have them) ++- linux kernel version ++ if your kernel is not plain, for example modified by distributor, ++ the url where i can download its source is necessary too. ++- aufs version which was printed at loading the module or booting the ++ system, instead of the date you downloaded. ++- configuration (define/undefine CONFIG_AUFS_xxx) ++- kernel configuration or /proc/config.gz (if you have it) ++- LSM (linux security module, if you are using) ++- behaviour which you think to be incorrect ++- actual operation, reproducible one is better ++- mailto: aufs-users at lists.sourceforge.net ++ ++Usually, I don't watch the Public Areas(Bugs, Support Requests, Patches, ++and Feature Requests) on SourceForge. Please join and write to ++aufs-users ML. ++ ++ ++6. Acknowledgements ++---------------------------------------- ++Thanks to everyone who have tried and are using aufs, whoever ++have reported a bug or any feedback. ++ ++Especially donators: ++Tomas Matejicek(slax.org) made a donation (much more than once). ++ Since Apr 2010, Tomas M (the author of Slax and Linux Live ++ scripts) is making "doubling" donations. ++ Unfortunately I cannot list all of the donators, but I really ++ appreciate. ++ It ends Aug 2010, but the ordinary donation URL is still available. ++ ++Dai Itasaka made a donation (2007/8). ++Chuck Smith made a donation (2008/4, 10 and 12). ++Henk Schoneveld made a donation (2008/9). ++Chih-Wei Huang, ASUS, CTC donated Eee PC 4G (2008/10). ++Francois Dupoux made a donation (2008/11). ++Bruno Cesar Ribas and Luis Carlos Erpen de Bona, C3SL serves public ++ aufs2 GIT tree (2009/2). ++William Grant made a donation (2009/3). ++Patrick Lane made a donation (2009/4). ++The Mail Archive (mail-archive.com) made donations (2009/5). ++Nippy Networks (Ed Wildgoose) made a donation (2009/7). ++New Dream Network, LLC (www.dreamhost.com) made a donation (2009/11). ++Pavel Pronskiy made a donation (2011/2). ++Iridium and Inmarsat satellite phone retailer (www.mailasail.com), Nippy ++ Networks (Ed Wildgoose) made a donation for hardware (2011/3). ++Max Lekomcev (DOM-TV project) made a donation (2011/7, 12, 2012/3, 6 and ++11). ++Sam Liddicott made a donation (2011/9). ++Era Scarecrow made a donation (2013/4). ++Bor Ratajc made a donation (2013/4). ++Alessandro Gorreta made a donation (2013/4). ++POIRETTE Marc made a donation (2013/4). ++Alessandro Gorreta made a donation (2013/4). ++lauri kasvandik made a donation (2013/5). ++"pemasu from Finland" made a donation (2013/7). ++The Parted Magic Project made a donation (2013/9 and 11). ++Pavel Barta made a donation (2013/10). ++Nikolay Pertsev made a donation (2014/5). ++James B made a donation (2014/7, 2015/7, and 2021/12). ++Stefano Di Biase made a donation (2014/8). ++Daniel Epellei made a donation (2015/1). ++OmegaPhil made a donation (2016/1, 2018/4). ++Tomasz Szewczyk made a donation (2016/4). ++James Burry made a donation (2016/12). ++Carsten Rose made a donation (2018/9). ++Porteus Kiosk made a donation (2018/10). ++ ++Thank you very much. ++Donations are always, including future donations, very important and ++helpful for me to keep on developing aufs. ++ ++ ++7. ++---------------------------------------- ++If you are an experienced user, no explanation is needed. Aufs is ++just a linux filesystem. ++ ++ ++Enjoy! ++ ++# Local variables: ; ++# mode: text; ++# End: ; +diff -Naur linux-5.15/drivers/block/loop.c aufs5-linux-aufs5.15/drivers/block/loop.c +--- linux-5.15/drivers/block/loop.c 2021-10-31 23:53:10.000000000 +0300 ++++ aufs5-linux-aufs5.15/drivers/block/loop.c 2022-03-07 13:48:09.000000000 +0300 +@@ -811,6 +811,24 @@ + return error; + } + ++/* ++ * for AUFS ++ * no get/put for file. ++ */ ++struct file *loop_backing_file(struct super_block *sb) ++{ ++ struct file *ret; ++ struct loop_device *l; ++ ++ ret = NULL; ++ if (MAJOR(sb->s_dev) == LOOP_MAJOR) { ++ l = sb->s_bdev->bd_disk->private_data; ++ ret = l->lo_backing_file; ++ } ++ return ret; ++} ++EXPORT_SYMBOL_GPL(loop_backing_file); ++ + /* loop sysfs attributes */ + + static ssize_t loop_attr_show(struct device *dev, char *page, +diff -Naur linux-5.15/fs/aufs/aufs.h aufs5-linux-aufs5.15/fs/aufs/aufs.h +--- linux-5.15/fs/aufs/aufs.h 1970-01-01 03:00:00.000000000 +0300 ++++ aufs5-linux-aufs5.15/fs/aufs/aufs.h 2022-03-07 13:48:09.000000000 +0300 +@@ -0,0 +1,49 @@ ++/* SPDX-License-Identifier: GPL-2.0 */ ++/* ++ * Copyright (C) 2005-2021 Junjiro R. Okajima ++ */ ++ ++/* ++ * all header files ++ */ ++ ++#ifndef __AUFS_H__ ++#define __AUFS_H__ ++ ++#ifdef __KERNEL__ ++ ++#define AuStub(type, name, body, ...) \ ++ static inline type name(__VA_ARGS__) { body; } ++ ++#define AuStubVoid(name, ...) \ ++ AuStub(void, name, , __VA_ARGS__) ++#define AuStubInt0(name, ...) \ ++ AuStub(int, name, return 0, __VA_ARGS__) ++ ++#include "debug.h" ++ ++#include "branch.h" ++#include "cpup.h" ++#include "dcsub.h" ++#include "dbgaufs.h" ++#include "dentry.h" ++#include "dir.h" ++#include "dirren.h" ++#include "dynop.h" ++#include "file.h" ++#include "fstype.h" ++#include "hbl.h" ++#include "inode.h" ++#include "lcnt.h" ++#include "loop.h" ++#include "module.h" ++#include "opts.h" ++#include "rwsem.h" ++#include "super.h" ++#include "sysaufs.h" ++#include "vfsub.h" ++#include "whout.h" ++#include "wkq.h" ++ ++#endif /* __KERNEL__ */ ++#endif /* __AUFS_H__ */ +diff -Naur linux-5.15/fs/aufs/branch.c aufs5-linux-aufs5.15/fs/aufs/branch.c +--- linux-5.15/fs/aufs/branch.c 1970-01-01 03:00:00.000000000 +0300 ++++ aufs5-linux-aufs5.15/fs/aufs/branch.c 2022-03-07 13:48:09.000000000 +0300 +@@ -0,0 +1,1414 @@ ++// SPDX-License-Identifier: GPL-2.0 ++/* ++ * Copyright (C) 2005-2021 Junjiro R. Okajima ++ */ ++ ++/* ++ * branch management ++ */ ++ ++#include ++#include ++#include "aufs.h" ++ ++/* ++ * free a single branch ++ */ ++static void au_br_do_free(struct au_branch *br) ++{ ++ int i; ++ struct au_wbr *wbr; ++ struct au_dykey **key; ++ ++ au_hnotify_fin_br(br); ++ /* always, regardless the mount option */ ++ au_dr_hino_free(&br->br_dirren); ++ au_xino_put(br); ++ ++ AuLCntZero(au_lcnt_read(&br->br_nfiles, /*do_rev*/0)); ++ au_lcnt_fin(&br->br_nfiles, /*do_sync*/0); ++ AuLCntZero(au_lcnt_read(&br->br_count, /*do_rev*/0)); ++ au_lcnt_fin(&br->br_count, /*do_sync*/0); ++ ++ wbr = br->br_wbr; ++ if (wbr) { ++ for (i = 0; i < AuBrWh_Last; i++) ++ dput(wbr->wbr_wh[i]); ++ AuDebugOn(atomic_read(&wbr->wbr_wh_running)); ++ AuRwDestroy(&wbr->wbr_wh_rwsem); ++ } ++ ++ if (br->br_fhsm) { ++ au_br_fhsm_fin(br->br_fhsm); ++ au_kfree_try_rcu(br->br_fhsm); ++ } ++ ++ key = br->br_dykey; ++ for (i = 0; i < AuBrDynOp; i++, key++) ++ if (*key) ++ au_dy_put(*key); ++ else ++ break; ++ ++ /* recursive lock, s_umount of branch's */ ++ /* synchronize_rcu(); */ /* why? */ ++ lockdep_off(); ++ path_put(&br->br_path); ++ lockdep_on(); ++ au_kfree_rcu(wbr); ++ au_lcnt_wait_for_fin(&br->br_nfiles); ++ au_lcnt_wait_for_fin(&br->br_count); ++ /* I don't know why, but percpu_refcount requires this */ ++ /* synchronize_rcu(); */ ++ au_kfree_rcu(br); ++} ++ ++/* ++ * frees all branches ++ */ ++void au_br_free(struct au_sbinfo *sbinfo) ++{ ++ aufs_bindex_t bmax; ++ struct au_branch **br; ++ ++ AuRwMustWriteLock(&sbinfo->si_rwsem); ++ ++ bmax = sbinfo->si_bbot + 1; ++ br = sbinfo->si_branch; ++ while (bmax--) ++ au_br_do_free(*br++); ++} ++ ++/* ++ * find the index of a branch which is specified by @br_id. ++ */ ++int au_br_index(struct super_block *sb, aufs_bindex_t br_id) ++{ ++ aufs_bindex_t bindex, bbot; ++ ++ bbot = au_sbbot(sb); ++ for (bindex = 0; bindex <= bbot; bindex++) ++ if (au_sbr_id(sb, bindex) == br_id) ++ return bindex; ++ return -1; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++/* ++ * add a branch ++ */ ++ ++static int test_overlap(struct super_block *sb, struct dentry *h_adding, ++ struct dentry *h_root) ++{ ++ if (unlikely(h_adding == h_root ++ || au_test_loopback_overlap(sb, h_adding))) ++ return 1; ++ if (h_adding->d_sb != h_root->d_sb) ++ return 0; ++ return au_test_subdir(h_adding, h_root) ++ || au_test_subdir(h_root, h_adding); ++} ++ ++/* ++ * returns a newly allocated branch. @new_nbranch is a number of branches ++ * after adding a branch. ++ */ ++static struct au_branch *au_br_alloc(struct super_block *sb, int new_nbranch, ++ int perm) ++{ ++ struct au_branch *add_branch; ++ struct dentry *root; ++ struct inode *inode; ++ int err; ++ ++ err = -ENOMEM; ++ add_branch = kzalloc(sizeof(*add_branch), GFP_NOFS); ++ if (unlikely(!add_branch)) ++ goto out; ++ add_branch->br_xino = au_xino_alloc(/*nfile*/1); ++ if (unlikely(!add_branch->br_xino)) ++ goto out_br; ++ err = au_hnotify_init_br(add_branch, perm); ++ if (unlikely(err)) ++ goto out_xino; ++ ++ if (au_br_writable(perm)) { ++ /* may be freed separately at changing the branch permission */ ++ add_branch->br_wbr = kzalloc(sizeof(*add_branch->br_wbr), ++ GFP_NOFS); ++ if (unlikely(!add_branch->br_wbr)) ++ goto out_hnotify; ++ } ++ ++ if (au_br_fhsm(perm)) { ++ err = au_fhsm_br_alloc(add_branch); ++ if (unlikely(err)) ++ goto out_wbr; ++ } ++ ++ root = sb->s_root; ++ err = au_sbr_realloc(au_sbi(sb), new_nbranch, /*may_shrink*/0); ++ if (!err) ++ err = au_di_realloc(au_di(root), new_nbranch, /*may_shrink*/0); ++ if (!err) { ++ inode = d_inode(root); ++ err = au_hinode_realloc(au_ii(inode), new_nbranch, ++ /*may_shrink*/0); ++ } ++ if (!err) ++ return add_branch; /* success */ ++ ++out_wbr: ++ au_kfree_rcu(add_branch->br_wbr); ++out_hnotify: ++ au_hnotify_fin_br(add_branch); ++out_xino: ++ au_xino_put(add_branch); ++out_br: ++ au_kfree_rcu(add_branch); ++out: ++ return ERR_PTR(err); ++} ++ ++/* ++ * test if the branch permission is legal or not. ++ */ ++static int test_br(struct inode *inode, int brperm, char *path) ++{ ++ int err; ++ ++ err = (au_br_writable(brperm) && IS_RDONLY(inode)); ++ if (!err) ++ goto out; ++ ++ err = -EINVAL; ++ pr_err("write permission for readonly mount or inode, %s\n", path); ++ ++out: ++ return err; ++} ++ ++/* ++ * returns: ++ * 0: success, the caller will add it ++ * plus: success, it is already unified, the caller should ignore it ++ * minus: error ++ */ ++static int test_add(struct super_block *sb, struct au_opt_add *add, int remount) ++{ ++ int err; ++ aufs_bindex_t bbot, bindex; ++ struct dentry *root, *h_dentry; ++ struct inode *inode, *h_inode; ++ ++ root = sb->s_root; ++ bbot = au_sbbot(sb); ++ if (unlikely(bbot >= 0 ++ && au_find_dbindex(root, add->path.dentry) >= 0)) { ++ err = 1; ++ if (!remount) { ++ err = -EINVAL; ++ pr_err("%s duplicated\n", add->pathname); ++ } ++ goto out; ++ } ++ ++ err = -ENOSPC; /* -E2BIG; */ ++ if (unlikely(AUFS_BRANCH_MAX <= add->bindex ++ || AUFS_BRANCH_MAX - 1 <= bbot)) { ++ pr_err("number of branches exceeded %s\n", add->pathname); ++ goto out; ++ } ++ ++ err = -EDOM; ++ if (unlikely(add->bindex < 0 || bbot + 1 < add->bindex)) { ++ pr_err("bad index %d\n", add->bindex); ++ goto out; ++ } ++ ++ inode = d_inode(add->path.dentry); ++ err = -ENOENT; ++ if (unlikely(!inode->i_nlink)) { ++ pr_err("no existence %s\n", add->pathname); ++ goto out; ++ } ++ ++ err = -EINVAL; ++ if (unlikely(inode->i_sb == sb)) { ++ pr_err("%s must be outside\n", add->pathname); ++ goto out; ++ } ++ ++ if (unlikely(au_test_fs_unsuppoted(inode->i_sb))) { ++ pr_err("unsupported filesystem, %s (%s)\n", ++ add->pathname, au_sbtype(inode->i_sb)); ++ goto out; ++ } ++ ++ if (unlikely(inode->i_sb->s_stack_depth)) { ++ pr_err("already stacked, %s (%s)\n", ++ add->pathname, au_sbtype(inode->i_sb)); ++ goto out; ++ } ++ ++ err = test_br(d_inode(add->path.dentry), add->perm, add->pathname); ++ if (unlikely(err)) ++ goto out; ++ ++ if (bbot < 0) ++ return 0; /* success */ ++ ++ err = -EINVAL; ++ for (bindex = 0; bindex <= bbot; bindex++) ++ if (unlikely(test_overlap(sb, add->path.dentry, ++ au_h_dptr(root, bindex)))) { ++ pr_err("%s is overlapped\n", add->pathname); ++ goto out; ++ } ++ ++ err = 0; ++ if (au_opt_test(au_mntflags(sb), WARN_PERM)) { ++ h_dentry = au_h_dptr(root, 0); ++ h_inode = d_inode(h_dentry); ++ if ((h_inode->i_mode & S_IALLUGO) != (inode->i_mode & S_IALLUGO) ++ || !uid_eq(h_inode->i_uid, inode->i_uid) ++ || !gid_eq(h_inode->i_gid, inode->i_gid)) ++ pr_warn("uid/gid/perm %s %u/%u/0%o, %u/%u/0%o\n", ++ add->pathname, ++ i_uid_read(inode), i_gid_read(inode), ++ (inode->i_mode & S_IALLUGO), ++ i_uid_read(h_inode), i_gid_read(h_inode), ++ (h_inode->i_mode & S_IALLUGO)); ++ } ++ ++out: ++ return err; ++} ++ ++/* ++ * initialize or clean the whiteouts for an adding branch ++ */ ++static int au_br_init_wh(struct super_block *sb, struct au_branch *br, ++ int new_perm) ++{ ++ int err, old_perm; ++ aufs_bindex_t bindex; ++ struct inode *h_inode; ++ struct au_wbr *wbr; ++ struct au_hinode *hdir; ++ struct dentry *h_dentry; ++ ++ err = vfsub_mnt_want_write(au_br_mnt(br)); ++ if (unlikely(err)) ++ goto out; ++ ++ wbr = br->br_wbr; ++ old_perm = br->br_perm; ++ br->br_perm = new_perm; ++ hdir = NULL; ++ h_inode = NULL; ++ bindex = au_br_index(sb, br->br_id); ++ if (0 <= bindex) { ++ hdir = au_hi(d_inode(sb->s_root), bindex); ++ au_hn_inode_lock_nested(hdir, AuLsc_I_PARENT); ++ } else { ++ h_dentry = au_br_dentry(br); ++ h_inode = d_inode(h_dentry); ++ inode_lock_nested(h_inode, AuLsc_I_PARENT); ++ } ++ if (!wbr) ++ err = au_wh_init(br, sb); ++ else { ++ wbr_wh_write_lock(wbr); ++ err = au_wh_init(br, sb); ++ wbr_wh_write_unlock(wbr); ++ } ++ if (hdir) ++ au_hn_inode_unlock(hdir); ++ else ++ inode_unlock(h_inode); ++ vfsub_mnt_drop_write(au_br_mnt(br)); ++ br->br_perm = old_perm; ++ ++ if (!err && wbr && !au_br_writable(new_perm)) { ++ au_kfree_rcu(wbr); ++ br->br_wbr = NULL; ++ } ++ ++out: ++ return err; ++} ++ ++static int au_wbr_init(struct au_branch *br, struct super_block *sb, ++ int perm) ++{ ++ int err; ++ struct kstatfs kst; ++ struct au_wbr *wbr; ++ ++ wbr = br->br_wbr; ++ au_rw_init(&wbr->wbr_wh_rwsem); ++ atomic_set(&wbr->wbr_wh_running, 0); ++ ++ /* ++ * a limit for rmdir/rename a dir ++ * cf. AUFS_MAX_NAMELEN in include/uapi/linux/aufs_type.h ++ */ ++ err = vfs_statfs(&br->br_path, &kst); ++ if (unlikely(err)) ++ goto out; ++ err = -EINVAL; ++ if (kst.f_namelen >= NAME_MAX) ++ err = au_br_init_wh(sb, br, perm); ++ else ++ pr_err("%pd(%s), unsupported namelen %ld\n", ++ au_br_dentry(br), ++ au_sbtype(au_br_dentry(br)->d_sb), kst.f_namelen); ++ ++out: ++ return err; ++} ++ ++/* initialize a new branch */ ++static int au_br_init(struct au_branch *br, struct super_block *sb, ++ struct au_opt_add *add) ++{ ++ int err; ++ struct au_branch *brbase; ++ struct file *xf; ++ struct inode *h_inode; ++ ++ err = 0; ++ br->br_perm = add->perm; ++ br->br_path = add->path; /* set first, path_get() later */ ++ spin_lock_init(&br->br_dykey_lock); ++ au_lcnt_init(&br->br_nfiles, /*release*/NULL); ++ au_lcnt_init(&br->br_count, /*release*/NULL); ++ br->br_id = au_new_br_id(sb); ++ AuDebugOn(br->br_id < 0); ++ ++ /* always, regardless the given option */ ++ err = au_dr_br_init(sb, br, &add->path); ++ if (unlikely(err)) ++ goto out_err; ++ ++ if (au_br_writable(add->perm)) { ++ err = au_wbr_init(br, sb, add->perm); ++ if (unlikely(err)) ++ goto out_err; ++ } ++ ++ if (au_opt_test(au_mntflags(sb), XINO)) { ++ brbase = au_sbr(sb, 0); ++ xf = au_xino_file(brbase->br_xino, /*idx*/-1); ++ AuDebugOn(!xf); ++ h_inode = d_inode(add->path.dentry); ++ err = au_xino_init_br(sb, br, h_inode->i_ino, &xf->f_path); ++ if (unlikely(err)) { ++ AuDebugOn(au_xino_file(br->br_xino, /*idx*/-1)); ++ goto out_err; ++ } ++ } ++ ++ sysaufs_br_init(br); ++ path_get(&br->br_path); ++ goto out; /* success */ ++ ++out_err: ++ memset(&br->br_path, 0, sizeof(br->br_path)); ++out: ++ return err; ++} ++ ++static void au_br_do_add_brp(struct au_sbinfo *sbinfo, aufs_bindex_t bindex, ++ struct au_branch *br, aufs_bindex_t bbot, ++ aufs_bindex_t amount) ++{ ++ struct au_branch **brp; ++ ++ AuRwMustWriteLock(&sbinfo->si_rwsem); ++ ++ brp = sbinfo->si_branch + bindex; ++ memmove(brp + 1, brp, sizeof(*brp) * amount); ++ *brp = br; ++ sbinfo->si_bbot++; ++ if (unlikely(bbot < 0)) ++ sbinfo->si_bbot = 0; ++} ++ ++static void au_br_do_add_hdp(struct au_dinfo *dinfo, aufs_bindex_t bindex, ++ aufs_bindex_t bbot, aufs_bindex_t amount) ++{ ++ struct au_hdentry *hdp; ++ ++ AuRwMustWriteLock(&dinfo->di_rwsem); ++ ++ hdp = au_hdentry(dinfo, bindex); ++ memmove(hdp + 1, hdp, sizeof(*hdp) * amount); ++ au_h_dentry_init(hdp); ++ dinfo->di_bbot++; ++ if (unlikely(bbot < 0)) ++ dinfo->di_btop = 0; ++} ++ ++static void au_br_do_add_hip(struct au_iinfo *iinfo, aufs_bindex_t bindex, ++ aufs_bindex_t bbot, aufs_bindex_t amount) ++{ ++ struct au_hinode *hip; ++ ++ AuRwMustWriteLock(&iinfo->ii_rwsem); ++ ++ hip = au_hinode(iinfo, bindex); ++ memmove(hip + 1, hip, sizeof(*hip) * amount); ++ au_hinode_init(hip); ++ iinfo->ii_bbot++; ++ if (unlikely(bbot < 0)) ++ iinfo->ii_btop = 0; ++} ++ ++static void au_br_do_add(struct super_block *sb, struct au_branch *br, ++ aufs_bindex_t bindex) ++{ ++ struct dentry *root, *h_dentry; ++ struct inode *root_inode, *h_inode; ++ aufs_bindex_t bbot, amount; ++ ++ root = sb->s_root; ++ root_inode = d_inode(root); ++ bbot = au_sbbot(sb); ++ amount = bbot + 1 - bindex; ++ h_dentry = au_br_dentry(br); ++ au_sbilist_lock(); ++ au_br_do_add_brp(au_sbi(sb), bindex, br, bbot, amount); ++ au_br_do_add_hdp(au_di(root), bindex, bbot, amount); ++ au_br_do_add_hip(au_ii(root_inode), bindex, bbot, amount); ++ au_set_h_dptr(root, bindex, dget(h_dentry)); ++ h_inode = d_inode(h_dentry); ++ au_set_h_iptr(root_inode, bindex, au_igrab(h_inode), /*flags*/0); ++ au_sbilist_unlock(); ++} ++ ++int au_br_add(struct super_block *sb, struct au_opt_add *add, int remount) ++{ ++ int err; ++ aufs_bindex_t bbot, add_bindex; ++ struct dentry *root, *h_dentry; ++ struct inode *root_inode; ++ struct au_branch *add_branch; ++ ++ root = sb->s_root; ++ root_inode = d_inode(root); ++ IMustLock(root_inode); ++ IiMustWriteLock(root_inode); ++ err = test_add(sb, add, remount); ++ if (unlikely(err < 0)) ++ goto out; ++ if (err) { ++ err = 0; ++ goto out; /* success */ ++ } ++ ++ bbot = au_sbbot(sb); ++ add_branch = au_br_alloc(sb, bbot + 2, add->perm); ++ err = PTR_ERR(add_branch); ++ if (IS_ERR(add_branch)) ++ goto out; ++ ++ err = au_br_init(add_branch, sb, add); ++ if (unlikely(err)) { ++ au_br_do_free(add_branch); ++ goto out; ++ } ++ ++ add_bindex = add->bindex; ++ sysaufs_brs_del(sb, add_bindex); /* remove successors */ ++ au_br_do_add(sb, add_branch, add_bindex); ++ sysaufs_brs_add(sb, add_bindex); /* append successors */ ++ dbgaufs_brs_add(sb, add_bindex, /*topdown*/0); /* rename successors */ ++ ++ h_dentry = add->path.dentry; ++ if (!add_bindex) { ++ au_cpup_attr_all(root_inode, /*force*/1); ++ sb->s_maxbytes = h_dentry->d_sb->s_maxbytes; ++ } else ++ au_add_nlink(root_inode, d_inode(h_dentry)); ++ ++out: ++ return err; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++static unsigned long long au_farray_cb(struct super_block *sb, void *a, ++ unsigned long long max __maybe_unused, ++ void *arg) ++{ ++ unsigned long long n; ++ struct file **p, *f; ++ struct hlist_bl_head *files; ++ struct hlist_bl_node *pos; ++ struct au_finfo *finfo; ++ ++ n = 0; ++ p = a; ++ files = &au_sbi(sb)->si_files; ++ hlist_bl_lock(files); ++ hlist_bl_for_each_entry(finfo, pos, files, fi_hlist) { ++ f = finfo->fi_file; ++ if (file_count(f) ++ && !special_file(file_inode(f)->i_mode)) { ++ get_file(f); ++ *p++ = f; ++ n++; ++ AuDebugOn(n > max); ++ } ++ } ++ hlist_bl_unlock(files); ++ ++ return n; ++} ++ ++static struct file **au_farray_alloc(struct super_block *sb, ++ unsigned long long *max) ++{ ++ struct au_sbinfo *sbi; ++ ++ sbi = au_sbi(sb); ++ *max = au_lcnt_read(&sbi->si_nfiles, /*do_rev*/1); ++ return au_array_alloc(max, au_farray_cb, sb, /*arg*/NULL); ++} ++ ++static void au_farray_free(struct file **a, unsigned long long max) ++{ ++ unsigned long long ull; ++ ++ for (ull = 0; ull < max; ull++) ++ if (a[ull]) ++ fput(a[ull]); ++ kvfree(a); ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++/* ++ * delete a branch ++ */ ++ ++/* to show the line number, do not make it inlined function */ ++#define AuVerbose(do_info, fmt, ...) do { \ ++ if (do_info) \ ++ pr_info(fmt, ##__VA_ARGS__); \ ++} while (0) ++ ++static int au_test_ibusy(struct inode *inode, aufs_bindex_t btop, ++ aufs_bindex_t bbot) ++{ ++ return (inode && !S_ISDIR(inode->i_mode)) || btop == bbot; ++} ++ ++static int au_test_dbusy(struct dentry *dentry, aufs_bindex_t btop, ++ aufs_bindex_t bbot) ++{ ++ return au_test_ibusy(d_inode(dentry), btop, bbot); ++} ++ ++/* ++ * test if the branch is deletable or not. ++ */ ++static int test_dentry_busy(struct dentry *root, aufs_bindex_t bindex, ++ unsigned int sigen, const unsigned int verbose) ++{ ++ int err, i, j, ndentry; ++ aufs_bindex_t btop, bbot; ++ struct au_dcsub_pages dpages; ++ struct au_dpage *dpage; ++ struct dentry *d; ++ ++ err = au_dpages_init(&dpages, GFP_NOFS); ++ if (unlikely(err)) ++ goto out; ++ err = au_dcsub_pages(&dpages, root, NULL, NULL); ++ if (unlikely(err)) ++ goto out_dpages; ++ ++ for (i = 0; !err && i < dpages.ndpage; i++) { ++ dpage = dpages.dpages + i; ++ ndentry = dpage->ndentry; ++ for (j = 0; !err && j < ndentry; j++) { ++ d = dpage->dentries[j]; ++ AuDebugOn(au_dcount(d) <= 0); ++ if (!au_digen_test(d, sigen)) { ++ di_read_lock_child(d, AuLock_IR); ++ if (unlikely(au_dbrange_test(d))) { ++ di_read_unlock(d, AuLock_IR); ++ continue; ++ } ++ } else { ++ di_write_lock_child(d); ++ if (unlikely(au_dbrange_test(d))) { ++ di_write_unlock(d); ++ continue; ++ } ++ err = au_reval_dpath(d, sigen); ++ if (!err) ++ di_downgrade_lock(d, AuLock_IR); ++ else { ++ di_write_unlock(d); ++ break; ++ } ++ } ++ ++ /* AuDbgDentry(d); */ ++ btop = au_dbtop(d); ++ bbot = au_dbbot(d); ++ if (btop <= bindex ++ && bindex <= bbot ++ && au_h_dptr(d, bindex) ++ && au_test_dbusy(d, btop, bbot)) { ++ err = -EBUSY; ++ AuVerbose(verbose, "busy %pd\n", d); ++ AuDbgDentry(d); ++ } ++ di_read_unlock(d, AuLock_IR); ++ } ++ } ++ ++out_dpages: ++ au_dpages_free(&dpages); ++out: ++ return err; ++} ++ ++static int test_inode_busy(struct super_block *sb, aufs_bindex_t bindex, ++ unsigned int sigen, const unsigned int verbose) ++{ ++ int err; ++ unsigned long long max, ull; ++ struct inode *i, **array; ++ aufs_bindex_t btop, bbot; ++ ++ array = au_iarray_alloc(sb, &max); ++ err = PTR_ERR(array); ++ if (IS_ERR(array)) ++ goto out; ++ ++ err = 0; ++ AuDbg("b%d\n", bindex); ++ for (ull = 0; !err && ull < max; ull++) { ++ i = array[ull]; ++ if (unlikely(!i)) ++ break; ++ if (i->i_ino == AUFS_ROOT_INO) ++ continue; ++ ++ /* AuDbgInode(i); */ ++ if (au_iigen(i, NULL) == sigen) ++ ii_read_lock_child(i); ++ else { ++ ii_write_lock_child(i); ++ err = au_refresh_hinode_self(i); ++ au_iigen_dec(i); ++ if (!err) ++ ii_downgrade_lock(i); ++ else { ++ ii_write_unlock(i); ++ break; ++ } ++ } ++ ++ btop = au_ibtop(i); ++ bbot = au_ibbot(i); ++ if (btop <= bindex ++ && bindex <= bbot ++ && au_h_iptr(i, bindex) ++ && au_test_ibusy(i, btop, bbot)) { ++ err = -EBUSY; ++ AuVerbose(verbose, "busy i%lu\n", i->i_ino); ++ AuDbgInode(i); ++ } ++ ii_read_unlock(i); ++ } ++ au_iarray_free(array, max); ++ ++out: ++ return err; ++} ++ ++static int test_children_busy(struct dentry *root, aufs_bindex_t bindex, ++ const unsigned int verbose) ++{ ++ int err; ++ unsigned int sigen; ++ ++ sigen = au_sigen(root->d_sb); ++ DiMustNoWaiters(root); ++ IiMustNoWaiters(d_inode(root)); ++ di_write_unlock(root); ++ err = test_dentry_busy(root, bindex, sigen, verbose); ++ if (!err) ++ err = test_inode_busy(root->d_sb, bindex, sigen, verbose); ++ di_write_lock_child(root); /* aufs_write_lock() calls ..._child() */ ++ ++ return err; ++} ++ ++static int test_dir_busy(struct file *file, aufs_bindex_t br_id, ++ struct file **to_free, int *idx) ++{ ++ int err; ++ unsigned char matched, root; ++ aufs_bindex_t bindex, bbot; ++ struct au_fidir *fidir; ++ struct au_hfile *hfile; ++ ++ err = 0; ++ root = IS_ROOT(file->f_path.dentry); ++ if (root) { ++ get_file(file); ++ to_free[*idx] = file; ++ (*idx)++; ++ goto out; ++ } ++ ++ matched = 0; ++ fidir = au_fi(file)->fi_hdir; ++ AuDebugOn(!fidir); ++ bbot = au_fbbot_dir(file); ++ for (bindex = au_fbtop(file); bindex <= bbot; bindex++) { ++ hfile = fidir->fd_hfile + bindex; ++ if (!hfile->hf_file) ++ continue; ++ ++ if (hfile->hf_br->br_id == br_id) { ++ matched = 1; ++ break; ++ } ++ } ++ if (matched) ++ err = -EBUSY; ++ ++out: ++ return err; ++} ++ ++static int test_file_busy(struct super_block *sb, aufs_bindex_t br_id, ++ struct file **to_free, int opened) ++{ ++ int err, idx; ++ unsigned long long ull, max; ++ aufs_bindex_t btop; ++ struct file *file, **array; ++ struct dentry *root; ++ struct au_hfile *hfile; ++ ++ array = au_farray_alloc(sb, &max); ++ err = PTR_ERR(array); ++ if (IS_ERR(array)) ++ goto out; ++ ++ err = 0; ++ idx = 0; ++ root = sb->s_root; ++ di_write_unlock(root); ++ for (ull = 0; ull < max; ull++) { ++ file = array[ull]; ++ if (unlikely(!file)) ++ break; ++ ++ /* AuDbg("%pD\n", file); */ ++ fi_read_lock(file); ++ btop = au_fbtop(file); ++ if (!d_is_dir(file->f_path.dentry)) { ++ hfile = &au_fi(file)->fi_htop; ++ if (hfile->hf_br->br_id == br_id) ++ err = -EBUSY; ++ } else ++ err = test_dir_busy(file, br_id, to_free, &idx); ++ fi_read_unlock(file); ++ if (unlikely(err)) ++ break; ++ } ++ di_write_lock_child(root); ++ au_farray_free(array, max); ++ AuDebugOn(idx > opened); ++ ++out: ++ return err; ++} ++ ++static void br_del_file(struct file **to_free, unsigned long long opened, ++ aufs_bindex_t br_id) ++{ ++ unsigned long long ull; ++ aufs_bindex_t bindex, btop, bbot, bfound; ++ struct file *file; ++ struct au_fidir *fidir; ++ struct au_hfile *hfile; ++ ++ for (ull = 0; ull < opened; ull++) { ++ file = to_free[ull]; ++ if (unlikely(!file)) ++ break; ++ ++ /* AuDbg("%pD\n", file); */ ++ AuDebugOn(!d_is_dir(file->f_path.dentry)); ++ bfound = -1; ++ fidir = au_fi(file)->fi_hdir; ++ AuDebugOn(!fidir); ++ fi_write_lock(file); ++ btop = au_fbtop(file); ++ bbot = au_fbbot_dir(file); ++ for (bindex = btop; bindex <= bbot; bindex++) { ++ hfile = fidir->fd_hfile + bindex; ++ if (!hfile->hf_file) ++ continue; ++ ++ if (hfile->hf_br->br_id == br_id) { ++ bfound = bindex; ++ break; ++ } ++ } ++ AuDebugOn(bfound < 0); ++ au_set_h_fptr(file, bfound, NULL); ++ if (bfound == btop) { ++ for (btop++; btop <= bbot; btop++) ++ if (au_hf_dir(file, btop)) { ++ au_set_fbtop(file, btop); ++ break; ++ } ++ } ++ fi_write_unlock(file); ++ } ++} ++ ++static void au_br_do_del_brp(struct au_sbinfo *sbinfo, ++ const aufs_bindex_t bindex, ++ const aufs_bindex_t bbot) ++{ ++ struct au_branch **brp, **p; ++ ++ AuRwMustWriteLock(&sbinfo->si_rwsem); ++ ++ brp = sbinfo->si_branch + bindex; ++ if (bindex < bbot) ++ memmove(brp, brp + 1, sizeof(*brp) * (bbot - bindex)); ++ sbinfo->si_branch[0 + bbot] = NULL; ++ sbinfo->si_bbot--; ++ ++ p = au_krealloc(sbinfo->si_branch, sizeof(*p) * bbot, AuGFP_SBILIST, ++ /*may_shrink*/1); ++ if (p) ++ sbinfo->si_branch = p; ++ /* harmless error */ ++} ++ ++static void au_br_do_del_hdp(struct au_dinfo *dinfo, const aufs_bindex_t bindex, ++ const aufs_bindex_t bbot) ++{ ++ struct au_hdentry *hdp, *p; ++ ++ AuRwMustWriteLock(&dinfo->di_rwsem); ++ ++ hdp = au_hdentry(dinfo, bindex); ++ if (bindex < bbot) ++ memmove(hdp, hdp + 1, sizeof(*hdp) * (bbot - bindex)); ++ /* au_h_dentry_init(au_hdentry(dinfo, bbot); */ ++ dinfo->di_bbot--; ++ ++ p = au_krealloc(dinfo->di_hdentry, sizeof(*p) * bbot, AuGFP_SBILIST, ++ /*may_shrink*/1); ++ if (p) ++ dinfo->di_hdentry = p; ++ /* harmless error */ ++} ++ ++static void au_br_do_del_hip(struct au_iinfo *iinfo, const aufs_bindex_t bindex, ++ const aufs_bindex_t bbot) ++{ ++ struct au_hinode *hip, *p; ++ ++ AuRwMustWriteLock(&iinfo->ii_rwsem); ++ ++ hip = au_hinode(iinfo, bindex); ++ if (bindex < bbot) ++ memmove(hip, hip + 1, sizeof(*hip) * (bbot - bindex)); ++ /* au_hinode_init(au_hinode(iinfo, bbot)); */ ++ iinfo->ii_bbot--; ++ ++ p = au_krealloc(iinfo->ii_hinode, sizeof(*p) * bbot, AuGFP_SBILIST, ++ /*may_shrink*/1); ++ if (p) ++ iinfo->ii_hinode = p; ++ /* harmless error */ ++} ++ ++static void au_br_do_del(struct super_block *sb, aufs_bindex_t bindex, ++ struct au_branch *br) ++{ ++ aufs_bindex_t bbot; ++ struct au_sbinfo *sbinfo; ++ struct dentry *root, *h_root; ++ struct inode *inode, *h_inode; ++ struct au_hinode *hinode; ++ ++ SiMustWriteLock(sb); ++ ++ root = sb->s_root; ++ inode = d_inode(root); ++ sbinfo = au_sbi(sb); ++ bbot = sbinfo->si_bbot; ++ ++ h_root = au_h_dptr(root, bindex); ++ hinode = au_hi(inode, bindex); ++ h_inode = au_igrab(hinode->hi_inode); ++ au_hiput(hinode); ++ ++ au_sbilist_lock(); ++ au_br_do_del_brp(sbinfo, bindex, bbot); ++ au_br_do_del_hdp(au_di(root), bindex, bbot); ++ au_br_do_del_hip(au_ii(inode), bindex, bbot); ++ au_sbilist_unlock(); ++ ++ /* ignore an error */ ++ au_dr_br_fin(sb, br); /* always, regardless the mount option */ ++ ++ dput(h_root); ++ iput(h_inode); ++ au_br_do_free(br); ++} ++ ++static unsigned long long empty_cb(struct super_block *sb, void *array, ++ unsigned long long max, void *arg) ++{ ++ return max; ++} ++ ++int au_br_del(struct super_block *sb, struct au_opt_del *del, int remount) ++{ ++ int err, rerr, i; ++ unsigned long long opened; ++ unsigned int mnt_flags; ++ aufs_bindex_t bindex, bbot, br_id; ++ unsigned char do_wh, verbose; ++ struct au_branch *br; ++ struct au_wbr *wbr; ++ struct dentry *root; ++ struct file **to_free; ++ ++ err = 0; ++ opened = 0; ++ to_free = NULL; ++ root = sb->s_root; ++ bindex = au_find_dbindex(root, del->h_path.dentry); ++ if (bindex < 0) { ++ if (remount) ++ goto out; /* success */ ++ err = -ENOENT; ++ pr_err("%s no such branch\n", del->pathname); ++ goto out; ++ } ++ AuDbg("bindex b%d\n", bindex); ++ ++ err = -EBUSY; ++ mnt_flags = au_mntflags(sb); ++ verbose = !!au_opt_test(mnt_flags, VERBOSE); ++ bbot = au_sbbot(sb); ++ if (unlikely(!bbot)) { ++ AuVerbose(verbose, "no more branches left\n"); ++ goto out; ++ } ++ ++ br = au_sbr(sb, bindex); ++ AuDebugOn(!path_equal(&br->br_path, &del->h_path)); ++ if (unlikely(au_lcnt_read(&br->br_count, /*do_rev*/1))) { ++ AuVerbose(verbose, "br %pd2 is busy now\n", del->h_path.dentry); ++ goto out; ++ } ++ ++ br_id = br->br_id; ++ opened = au_lcnt_read(&br->br_nfiles, /*do_rev*/1); ++ if (unlikely(opened)) { ++ to_free = au_array_alloc(&opened, empty_cb, sb, NULL); ++ err = PTR_ERR(to_free); ++ if (IS_ERR(to_free)) ++ goto out; ++ ++ err = test_file_busy(sb, br_id, to_free, opened); ++ if (unlikely(err)) { ++ AuVerbose(verbose, "%llu file(s) opened\n", opened); ++ goto out; ++ } ++ } ++ ++ wbr = br->br_wbr; ++ do_wh = wbr && (wbr->wbr_whbase || wbr->wbr_plink || wbr->wbr_orph); ++ if (do_wh) { ++ /* instead of WbrWhMustWriteLock(wbr) */ ++ SiMustWriteLock(sb); ++ for (i = 0; i < AuBrWh_Last; i++) { ++ dput(wbr->wbr_wh[i]); ++ wbr->wbr_wh[i] = NULL; ++ } ++ } ++ ++ err = test_children_busy(root, bindex, verbose); ++ if (unlikely(err)) { ++ if (do_wh) ++ goto out_wh; ++ goto out; ++ } ++ ++ err = 0; ++ if (to_free) { ++ /* ++ * now we confirmed the branch is deletable. ++ * let's free the remaining opened dirs on the branch. ++ */ ++ di_write_unlock(root); ++ br_del_file(to_free, opened, br_id); ++ di_write_lock_child(root); ++ } ++ ++ sysaufs_brs_del(sb, bindex); /* remove successors */ ++ dbgaufs_xino_del(br); /* remove one */ ++ au_br_do_del(sb, bindex, br); ++ sysaufs_brs_add(sb, bindex); /* append successors */ ++ dbgaufs_brs_add(sb, bindex, /*topdown*/1); /* rename successors */ ++ ++ if (!bindex) { ++ au_cpup_attr_all(d_inode(root), /*force*/1); ++ sb->s_maxbytes = au_sbr_sb(sb, 0)->s_maxbytes; ++ } else ++ au_sub_nlink(d_inode(root), d_inode(del->h_path.dentry)); ++ if (au_opt_test(mnt_flags, PLINK)) ++ au_plink_half_refresh(sb, br_id); ++ ++ goto out; /* success */ ++ ++out_wh: ++ /* revert */ ++ rerr = au_br_init_wh(sb, br, br->br_perm); ++ if (rerr) ++ pr_warn("failed re-creating base whiteout, %s. (%d)\n", ++ del->pathname, rerr); ++out: ++ if (to_free) ++ au_farray_free(to_free, opened); ++ return err; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++static int au_ibusy(struct super_block *sb, struct aufs_ibusy __user *arg) ++{ ++ int err; ++ aufs_bindex_t btop, bbot; ++ struct aufs_ibusy ibusy; ++ struct inode *inode, *h_inode; ++ ++ err = -EPERM; ++ if (unlikely(!capable(CAP_SYS_ADMIN))) ++ goto out; ++ ++ err = copy_from_user(&ibusy, arg, sizeof(ibusy)); ++ if (!err) ++ /* VERIFY_WRITE */ ++ err = !access_ok(&arg->h_ino, sizeof(arg->h_ino)); ++ if (unlikely(err)) { ++ err = -EFAULT; ++ AuTraceErr(err); ++ goto out; ++ } ++ ++ err = -EINVAL; ++ si_read_lock(sb, AuLock_FLUSH); ++ if (unlikely(ibusy.bindex < 0 || ibusy.bindex > au_sbbot(sb))) ++ goto out_unlock; ++ ++ err = 0; ++ ibusy.h_ino = 0; /* invalid */ ++ inode = ilookup(sb, ibusy.ino); ++ if (!inode ++ || inode->i_ino == AUFS_ROOT_INO ++ || au_is_bad_inode(inode)) ++ goto out_unlock; ++ ++ ii_read_lock_child(inode); ++ btop = au_ibtop(inode); ++ bbot = au_ibbot(inode); ++ if (btop <= ibusy.bindex && ibusy.bindex <= bbot) { ++ h_inode = au_h_iptr(inode, ibusy.bindex); ++ if (h_inode && au_test_ibusy(inode, btop, bbot)) ++ ibusy.h_ino = h_inode->i_ino; ++ } ++ ii_read_unlock(inode); ++ iput(inode); ++ ++out_unlock: ++ si_read_unlock(sb); ++ if (!err) { ++ err = __put_user(ibusy.h_ino, &arg->h_ino); ++ if (unlikely(err)) { ++ err = -EFAULT; ++ AuTraceErr(err); ++ } ++ } ++out: ++ return err; ++} ++ ++long au_ibusy_ioctl(struct file *file, unsigned long arg) ++{ ++ return au_ibusy(file->f_path.dentry->d_sb, (void __user *)arg); ++} ++ ++#ifdef CONFIG_COMPAT ++long au_ibusy_compat_ioctl(struct file *file, unsigned long arg) ++{ ++ return au_ibusy(file->f_path.dentry->d_sb, compat_ptr(arg)); ++} ++#endif ++ ++/* ---------------------------------------------------------------------- */ ++ ++/* ++ * change a branch permission ++ */ ++ ++static void au_warn_ima(void) ++{ ++#ifdef CONFIG_IMA ++ /* since it doesn't support mark_files_ro() */ ++ AuWarn1("RW -> RO makes IMA to produce wrong message\n"); ++#endif ++} ++ ++static int do_need_sigen_inc(int a, int b) ++{ ++ return au_br_whable(a) && !au_br_whable(b); ++} ++ ++static int need_sigen_inc(int old, int new) ++{ ++ return do_need_sigen_inc(old, new) ++ || do_need_sigen_inc(new, old); ++} ++ ++static int au_br_mod_files_ro(struct super_block *sb, aufs_bindex_t bindex) ++{ ++ int err, do_warn; ++ unsigned int mnt_flags; ++ unsigned long long ull, max; ++ aufs_bindex_t br_id; ++ unsigned char verbose, writer; ++ struct file *file, *hf, **array; ++ struct au_hfile *hfile; ++ struct inode *h_inode; ++ ++ mnt_flags = au_mntflags(sb); ++ verbose = !!au_opt_test(mnt_flags, VERBOSE); ++ ++ array = au_farray_alloc(sb, &max); ++ err = PTR_ERR(array); ++ if (IS_ERR(array)) ++ goto out; ++ ++ do_warn = 0; ++ br_id = au_sbr_id(sb, bindex); ++ for (ull = 0; ull < max; ull++) { ++ file = array[ull]; ++ if (unlikely(!file)) ++ break; ++ ++ /* AuDbg("%pD\n", file); */ ++ fi_read_lock(file); ++ if (unlikely(au_test_mmapped(file))) { ++ err = -EBUSY; ++ AuVerbose(verbose, "mmapped %pD\n", file); ++ AuDbgFile(file); ++ FiMustNoWaiters(file); ++ fi_read_unlock(file); ++ goto out_array; ++ } ++ ++ hfile = &au_fi(file)->fi_htop; ++ hf = hfile->hf_file; ++ if (!d_is_reg(file->f_path.dentry) ++ || !(file->f_mode & FMODE_WRITE) ++ || hfile->hf_br->br_id != br_id ++ || !(hf->f_mode & FMODE_WRITE)) ++ array[ull] = NULL; ++ else { ++ do_warn = 1; ++ get_file(file); ++ } ++ ++ FiMustNoWaiters(file); ++ fi_read_unlock(file); ++ fput(file); ++ } ++ ++ err = 0; ++ if (do_warn) ++ au_warn_ima(); ++ ++ for (ull = 0; ull < max; ull++) { ++ file = array[ull]; ++ if (!file) ++ continue; ++ ++ /* todo: already flushed? */ ++ /* ++ * fs/super.c:mark_files_ro() is gone, but aufs keeps its ++ * approach which resets f_mode and calls mnt_drop_write() and ++ * file_release_write() for each file, because the branch ++ * attribute in aufs world is totally different from the native ++ * fs rw/ro mode. ++ */ ++ /* fi_read_lock(file); */ ++ hfile = &au_fi(file)->fi_htop; ++ hf = hfile->hf_file; ++ /* fi_read_unlock(file); */ ++ spin_lock(&hf->f_lock); ++ writer = !!(hf->f_mode & FMODE_WRITER); ++ hf->f_mode &= ~(FMODE_WRITE | FMODE_WRITER); ++ spin_unlock(&hf->f_lock); ++ if (writer) { ++ h_inode = file_inode(hf); ++ if (hf->f_mode & FMODE_READ) ++ i_readcount_inc(h_inode); ++ put_write_access(h_inode); ++ __mnt_drop_write(hf->f_path.mnt); ++ } ++ } ++ ++out_array: ++ au_farray_free(array, max); ++out: ++ AuTraceErr(err); ++ return err; ++} ++ ++int au_br_mod(struct super_block *sb, struct au_opt_mod *mod, int remount, ++ int *do_refresh) ++{ ++ int err, rerr; ++ aufs_bindex_t bindex; ++ struct dentry *root; ++ struct au_branch *br; ++ struct au_br_fhsm *bf; ++ ++ root = sb->s_root; ++ bindex = au_find_dbindex(root, mod->h_root); ++ if (bindex < 0) { ++ if (remount) ++ return 0; /* success */ ++ err = -ENOENT; ++ pr_err("%s no such branch\n", mod->path); ++ goto out; ++ } ++ AuDbg("bindex b%d\n", bindex); ++ ++ err = test_br(d_inode(mod->h_root), mod->perm, mod->path); ++ if (unlikely(err)) ++ goto out; ++ ++ br = au_sbr(sb, bindex); ++ AuDebugOn(mod->h_root != au_br_dentry(br)); ++ if (br->br_perm == mod->perm) ++ return 0; /* success */ ++ ++ /* pre-allocate for non-fhsm --> fhsm */ ++ bf = NULL; ++ if (!au_br_fhsm(br->br_perm) && au_br_fhsm(mod->perm)) { ++ err = au_fhsm_br_alloc(br); ++ if (unlikely(err)) ++ goto out; ++ bf = br->br_fhsm; ++ br->br_fhsm = NULL; ++ } ++ ++ if (au_br_writable(br->br_perm)) { ++ /* remove whiteout base */ ++ err = au_br_init_wh(sb, br, mod->perm); ++ if (unlikely(err)) ++ goto out_bf; ++ ++ if (!au_br_writable(mod->perm)) { ++ /* rw --> ro, file might be mmapped */ ++ DiMustNoWaiters(root); ++ IiMustNoWaiters(d_inode(root)); ++ di_write_unlock(root); ++ err = au_br_mod_files_ro(sb, bindex); ++ /* aufs_write_lock() calls ..._child() */ ++ di_write_lock_child(root); ++ ++ if (unlikely(err)) { ++ rerr = -ENOMEM; ++ br->br_wbr = kzalloc(sizeof(*br->br_wbr), ++ GFP_NOFS); ++ if (br->br_wbr) ++ rerr = au_wbr_init(br, sb, br->br_perm); ++ if (unlikely(rerr)) { ++ AuIOErr("nested error %d (%d)\n", ++ rerr, err); ++ br->br_perm = mod->perm; ++ } ++ } ++ } ++ } else if (au_br_writable(mod->perm)) { ++ /* ro --> rw */ ++ err = -ENOMEM; ++ br->br_wbr = kzalloc(sizeof(*br->br_wbr), GFP_NOFS); ++ if (br->br_wbr) { ++ err = au_wbr_init(br, sb, mod->perm); ++ if (unlikely(err)) { ++ au_kfree_rcu(br->br_wbr); ++ br->br_wbr = NULL; ++ } ++ } ++ } ++ if (unlikely(err)) ++ goto out_bf; ++ ++ if (au_br_fhsm(br->br_perm)) { ++ if (!au_br_fhsm(mod->perm)) { ++ /* fhsm --> non-fhsm */ ++ au_br_fhsm_fin(br->br_fhsm); ++ au_kfree_rcu(br->br_fhsm); ++ br->br_fhsm = NULL; ++ } ++ } else if (au_br_fhsm(mod->perm)) ++ /* non-fhsm --> fhsm */ ++ br->br_fhsm = bf; ++ ++ *do_refresh |= need_sigen_inc(br->br_perm, mod->perm); ++ br->br_perm = mod->perm; ++ goto out; /* success */ ++ ++out_bf: ++ au_kfree_try_rcu(bf); ++out: ++ AuTraceErr(err); ++ return err; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++int au_br_stfs(struct au_branch *br, struct aufs_stfs *stfs) ++{ ++ int err; ++ struct kstatfs kstfs; ++ ++ err = vfs_statfs(&br->br_path, &kstfs); ++ if (!err) { ++ stfs->f_blocks = kstfs.f_blocks; ++ stfs->f_bavail = kstfs.f_bavail; ++ stfs->f_files = kstfs.f_files; ++ stfs->f_ffree = kstfs.f_ffree; ++ } ++ ++ return err; ++} +diff -Naur linux-5.15/fs/aufs/branch.h aufs5-linux-aufs5.15/fs/aufs/branch.h +--- linux-5.15/fs/aufs/branch.h 1970-01-01 03:00:00.000000000 +0300 ++++ aufs5-linux-aufs5.15/fs/aufs/branch.h 2022-03-07 13:48:09.000000000 +0300 +@@ -0,0 +1,362 @@ ++/* SPDX-License-Identifier: GPL-2.0 */ ++/* ++ * Copyright (C) 2005-2021 Junjiro R. Okajima ++ */ ++ ++/* ++ * branch filesystems and xino for them ++ */ ++ ++#ifndef __AUFS_BRANCH_H__ ++#define __AUFS_BRANCH_H__ ++ ++#ifdef __KERNEL__ ++ ++#include ++#include "dirren.h" ++#include "dynop.h" ++#include "lcnt.h" ++#include "rwsem.h" ++#include "super.h" ++ ++/* ---------------------------------------------------------------------- */ ++ ++/* a xino file */ ++struct au_xino { ++ struct file **xi_file; ++ unsigned int xi_nfile; ++ ++ struct { ++ spinlock_t spin; ++ ino_t *array; ++ int total; ++ /* reserved for future use */ ++ /* unsigned long *bitmap; */ ++ wait_queue_head_t wqh; ++ } xi_nondir; ++ ++ struct mutex xi_mtx; /* protects xi_file array */ ++ struct hlist_bl_head xi_writing; ++ ++ atomic_t xi_truncating; ++ ++ struct kref xi_kref; ++}; ++ ++/* File-based Hierarchical Storage Management */ ++struct au_br_fhsm { ++#ifdef CONFIG_AUFS_FHSM ++ struct mutex bf_lock; ++ unsigned long bf_jiffy; ++ struct aufs_stfs bf_stfs; ++ int bf_readable; ++#endif ++}; ++ ++/* members for writable branch only */ ++enum {AuBrWh_BASE, AuBrWh_PLINK, AuBrWh_ORPH, AuBrWh_Last}; ++struct au_wbr { ++ struct au_rwsem wbr_wh_rwsem; ++ struct dentry *wbr_wh[AuBrWh_Last]; ++ atomic_t wbr_wh_running; ++#define wbr_whbase wbr_wh[AuBrWh_BASE] /* whiteout base */ ++#define wbr_plink wbr_wh[AuBrWh_PLINK] /* pseudo-link dir */ ++#define wbr_orph wbr_wh[AuBrWh_ORPH] /* dir for orphans */ ++ ++ /* mfs mode */ ++ unsigned long long wbr_bytes; ++}; ++ ++/* ext2 has 3 types of operations at least, ext3 has 4 */ ++#define AuBrDynOp (AuDyLast * 4) ++ ++#ifdef CONFIG_AUFS_HFSNOTIFY ++/* support for asynchronous destruction */ ++struct au_br_hfsnotify { ++ struct fsnotify_group *hfsn_group; ++}; ++#endif ++ ++/* sysfs entries */ ++struct au_brsysfs { ++ char name[16]; ++ struct attribute attr; ++}; ++ ++enum { ++ AuBrSysfs_BR, ++ AuBrSysfs_BRID, ++ AuBrSysfs_Last ++}; ++ ++/* protected by superblock rwsem */ ++struct au_branch { ++ struct au_xino *br_xino; ++ ++ aufs_bindex_t br_id; ++ ++ int br_perm; ++ struct path br_path; ++ spinlock_t br_dykey_lock; ++ struct au_dykey *br_dykey[AuBrDynOp]; ++ au_lcnt_t br_nfiles; /* opened files */ ++ au_lcnt_t br_count; /* in-use for other */ ++ ++ struct au_wbr *br_wbr; ++ struct au_br_fhsm *br_fhsm; ++ ++#ifdef CONFIG_AUFS_HFSNOTIFY ++ struct au_br_hfsnotify *br_hfsn; ++#endif ++ ++#ifdef CONFIG_SYSFS ++ /* entries under sysfs per mount-point */ ++ struct au_brsysfs br_sysfs[AuBrSysfs_Last]; ++#endif ++ ++#ifdef CONFIG_DEBUG_FS ++ struct dentry *br_dbgaufs; /* xino */ ++#endif ++ ++ struct au_dr_br br_dirren; ++}; ++ ++/* ---------------------------------------------------------------------- */ ++ ++static inline struct vfsmount *au_br_mnt(struct au_branch *br) ++{ ++ return br->br_path.mnt; ++} ++ ++static inline struct dentry *au_br_dentry(struct au_branch *br) ++{ ++ return br->br_path.dentry; ++} ++ ++static inline struct user_namespace *au_br_userns(struct au_branch *br) ++{ ++ return mnt_user_ns(br->br_path.mnt); ++} ++ ++static inline struct super_block *au_br_sb(struct au_branch *br) ++{ ++ return au_br_mnt(br)->mnt_sb; ++} ++ ++static inline int au_br_rdonly(struct au_branch *br) ++{ ++ return (sb_rdonly(au_br_sb(br)) ++ || !au_br_writable(br->br_perm)) ++ ? -EROFS : 0; ++} ++ ++static inline int au_br_hnotifyable(int brperm __maybe_unused) ++{ ++#ifdef CONFIG_AUFS_HNOTIFY ++ return !(brperm & AuBrPerm_RR); ++#else ++ return 0; ++#endif ++} ++ ++static inline int au_br_test_oflag(int oflag, struct au_branch *br) ++{ ++ int err, exec_flag; ++ ++ err = 0; ++ exec_flag = oflag & __FMODE_EXEC; ++ if (unlikely(exec_flag && path_noexec(&br->br_path))) ++ err = -EACCES; ++ ++ return err; ++} ++ ++static inline void au_xino_get(struct au_branch *br) ++{ ++ struct au_xino *xi; ++ ++ xi = br->br_xino; ++ if (xi) ++ kref_get(&xi->xi_kref); ++} ++ ++static inline int au_xino_count(struct au_branch *br) ++{ ++ int v; ++ struct au_xino *xi; ++ ++ v = 0; ++ xi = br->br_xino; ++ if (xi) ++ v = kref_read(&xi->xi_kref); ++ ++ return v; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++/* branch.c */ ++struct au_sbinfo; ++void au_br_free(struct au_sbinfo *sinfo); ++int au_br_index(struct super_block *sb, aufs_bindex_t br_id); ++struct au_opt_add; ++int au_br_add(struct super_block *sb, struct au_opt_add *add, int remount); ++struct au_opt_del; ++int au_br_del(struct super_block *sb, struct au_opt_del *del, int remount); ++long au_ibusy_ioctl(struct file *file, unsigned long arg); ++#ifdef CONFIG_COMPAT ++long au_ibusy_compat_ioctl(struct file *file, unsigned long arg); ++#endif ++struct au_opt_mod; ++int au_br_mod(struct super_block *sb, struct au_opt_mod *mod, int remount, ++ int *do_refresh); ++struct aufs_stfs; ++int au_br_stfs(struct au_branch *br, struct aufs_stfs *stfs); ++ ++/* xino.c */ ++static const loff_t au_loff_max = LLONG_MAX; ++ ++aufs_bindex_t au_xi_root(struct super_block *sb, struct dentry *dentry); ++struct file *au_xino_create(struct super_block *sb, char *fpath, int silent, ++ int wbrtop); ++struct file *au_xino_create2(struct super_block *sb, struct path *base, ++ struct file *copy_src); ++struct au_xi_new { ++ struct au_xino *xi; /* switch between xino and xigen */ ++ int idx; ++ struct path *base; ++ struct file *copy_src; ++}; ++struct file *au_xi_new(struct super_block *sb, struct au_xi_new *xinew); ++ ++int au_xino_read(struct super_block *sb, aufs_bindex_t bindex, ino_t h_ino, ++ ino_t *ino); ++int au_xino_write(struct super_block *sb, aufs_bindex_t bindex, ino_t h_ino, ++ ino_t ino); ++ssize_t xino_fread(struct file *file, void *buf, size_t size, loff_t *pos); ++ssize_t xino_fwrite(struct file *file, void *buf, size_t size, loff_t *pos); ++ ++int au_xib_trunc(struct super_block *sb); ++int au_xino_trunc(struct super_block *sb, aufs_bindex_t bindex, int idx_begin); ++ ++struct au_xino *au_xino_alloc(unsigned int nfile); ++int au_xino_put(struct au_branch *br); ++struct file *au_xino_file1(struct au_xino *xi); ++ ++struct au_opt_xino; ++void au_xino_clr(struct super_block *sb); ++int au_xino_set(struct super_block *sb, struct au_opt_xino *xiopt, int remount); ++struct file *au_xino_def(struct super_block *sb); ++int au_xino_init_br(struct super_block *sb, struct au_branch *br, ino_t hino, ++ struct path *base); ++ ++ino_t au_xino_new_ino(struct super_block *sb); ++void au_xino_delete_inode(struct inode *inode, const int unlinked); ++ ++void au_xinondir_leave(struct super_block *sb, aufs_bindex_t bindex, ++ ino_t h_ino, int idx); ++int au_xinondir_enter(struct super_block *sb, aufs_bindex_t bindex, ino_t h_ino, ++ int *idx); ++ ++int au_xino_path(struct seq_file *seq, struct file *file); ++ ++/* ---------------------------------------------------------------------- */ ++ ++/* @idx is signed to accept -1 meaning the first file */ ++static inline struct file *au_xino_file(struct au_xino *xi, int idx) ++{ ++ struct file *file; ++ ++ file = NULL; ++ if (!xi) ++ goto out; ++ ++ if (idx >= 0) { ++ if (idx < xi->xi_nfile) ++ file = xi->xi_file[idx]; ++ } else ++ file = au_xino_file1(xi); ++ ++out: ++ return file; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++/* Superblock to branch */ ++static inline ++aufs_bindex_t au_sbr_id(struct super_block *sb, aufs_bindex_t bindex) ++{ ++ return au_sbr(sb, bindex)->br_id; ++} ++ ++static inline ++struct vfsmount *au_sbr_mnt(struct super_block *sb, aufs_bindex_t bindex) ++{ ++ return au_br_mnt(au_sbr(sb, bindex)); ++} ++ ++static inline ++struct user_namespace *au_sbr_userns(struct super_block *sb, aufs_bindex_t bindex) ++{ ++ return au_br_userns(au_sbr(sb, bindex)); ++} ++ ++static inline ++struct super_block *au_sbr_sb(struct super_block *sb, aufs_bindex_t bindex) ++{ ++ return au_br_sb(au_sbr(sb, bindex)); ++} ++ ++static inline int au_sbr_perm(struct super_block *sb, aufs_bindex_t bindex) ++{ ++ return au_sbr(sb, bindex)->br_perm; ++} ++ ++static inline int au_sbr_whable(struct super_block *sb, aufs_bindex_t bindex) ++{ ++ return au_br_whable(au_sbr_perm(sb, bindex)); ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++#define wbr_wh_read_lock(wbr) au_rw_read_lock(&(wbr)->wbr_wh_rwsem) ++#define wbr_wh_write_lock(wbr) au_rw_write_lock(&(wbr)->wbr_wh_rwsem) ++#define wbr_wh_read_trylock(wbr) au_rw_read_trylock(&(wbr)->wbr_wh_rwsem) ++#define wbr_wh_write_trylock(wbr) au_rw_write_trylock(&(wbr)->wbr_wh_rwsem) ++/* ++#define wbr_wh_read_trylock_nested(wbr) \ ++ au_rw_read_trylock_nested(&(wbr)->wbr_wh_rwsem) ++#define wbr_wh_write_trylock_nested(wbr) \ ++ au_rw_write_trylock_nested(&(wbr)->wbr_wh_rwsem) ++*/ ++ ++#define wbr_wh_read_unlock(wbr) au_rw_read_unlock(&(wbr)->wbr_wh_rwsem) ++#define wbr_wh_write_unlock(wbr) au_rw_write_unlock(&(wbr)->wbr_wh_rwsem) ++#define wbr_wh_downgrade_lock(wbr) au_rw_dgrade_lock(&(wbr)->wbr_wh_rwsem) ++ ++#define WbrWhMustNoWaiters(wbr) AuRwMustNoWaiters(&(wbr)->wbr_wh_rwsem) ++#define WbrWhMustAnyLock(wbr) AuRwMustAnyLock(&(wbr)->wbr_wh_rwsem) ++#define WbrWhMustWriteLock(wbr) AuRwMustWriteLock(&(wbr)->wbr_wh_rwsem) ++ ++/* ---------------------------------------------------------------------- */ ++ ++#ifdef CONFIG_AUFS_FHSM ++static inline void au_br_fhsm_init(struct au_br_fhsm *brfhsm) ++{ ++ mutex_init(&brfhsm->bf_lock); ++ brfhsm->bf_jiffy = 0; ++ brfhsm->bf_readable = 0; ++} ++ ++static inline void au_br_fhsm_fin(struct au_br_fhsm *brfhsm) ++{ ++ mutex_destroy(&brfhsm->bf_lock); ++} ++#else ++AuStubVoid(au_br_fhsm_init, struct au_br_fhsm *brfhsm) ++AuStubVoid(au_br_fhsm_fin, struct au_br_fhsm *brfhsm) ++#endif ++ ++#endif /* __KERNEL__ */ ++#endif /* __AUFS_BRANCH_H__ */ +diff -Naur linux-5.15/fs/aufs/cpup.c aufs5-linux-aufs5.15/fs/aufs/cpup.c +--- linux-5.15/fs/aufs/cpup.c 1970-01-01 03:00:00.000000000 +0300 ++++ aufs5-linux-aufs5.15/fs/aufs/cpup.c 2022-03-07 13:48:09.000000000 +0300 +@@ -0,0 +1,1446 @@ ++// SPDX-License-Identifier: GPL-2.0 ++/* ++ * Copyright (C) 2005-2021 Junjiro R. Okajima ++ */ ++ ++/* ++ * copy-up functions, see wbr_policy.c for copy-down ++ */ ++ ++#include ++#include ++#include ++#include "aufs.h" ++ ++void au_cpup_attr_flags(struct inode *dst, unsigned int iflags) ++{ ++ const unsigned int mask = S_DEAD | S_SWAPFILE | S_PRIVATE ++ | S_NOATIME | S_NOCMTIME | S_AUTOMOUNT; ++ ++ BUILD_BUG_ON(sizeof(iflags) != sizeof(dst->i_flags)); ++ ++ dst->i_flags |= iflags & ~mask; ++ if (au_test_fs_notime(dst->i_sb)) ++ dst->i_flags |= S_NOATIME | S_NOCMTIME; ++} ++ ++void au_cpup_attr_timesizes(struct inode *inode) ++{ ++ struct inode *h_inode; ++ ++ h_inode = au_h_iptr(inode, au_ibtop(inode)); ++ fsstack_copy_attr_times(inode, h_inode); ++ fsstack_copy_inode_size(inode, h_inode); ++} ++ ++void au_cpup_attr_nlink(struct inode *inode, int force) ++{ ++ struct inode *h_inode; ++ struct super_block *sb; ++ aufs_bindex_t bindex, bbot; ++ ++ sb = inode->i_sb; ++ bindex = au_ibtop(inode); ++ h_inode = au_h_iptr(inode, bindex); ++ if (!force ++ && !S_ISDIR(h_inode->i_mode) ++ && au_opt_test(au_mntflags(sb), PLINK) ++ && au_plink_test(inode)) ++ return; ++ ++ /* ++ * 0 can happen in revalidating. ++ * h_inode->i_mutex may not be held here, but it is harmless since once ++ * i_nlink reaches 0, it will never become positive except O_TMPFILE ++ * case. ++ * todo: O_TMPFILE+linkat(AT_SYMLINK_FOLLOW) bypassing aufs may cause ++ * the incorrect link count. ++ */ ++ set_nlink(inode, h_inode->i_nlink); ++ ++ /* ++ * fewer nlink makes find(1) noisy, but larger nlink doesn't. ++ * it may includes whplink directory. ++ */ ++ if (S_ISDIR(h_inode->i_mode)) { ++ bbot = au_ibbot(inode); ++ for (bindex++; bindex <= bbot; bindex++) { ++ h_inode = au_h_iptr(inode, bindex); ++ if (h_inode) ++ au_add_nlink(inode, h_inode); ++ } ++ } ++} ++ ++void au_cpup_attr_changeable(struct inode *inode) ++{ ++ struct inode *h_inode; ++ ++ h_inode = au_h_iptr(inode, au_ibtop(inode)); ++ inode->i_mode = h_inode->i_mode; ++ inode->i_uid = h_inode->i_uid; ++ inode->i_gid = h_inode->i_gid; ++ au_cpup_attr_timesizes(inode); ++ au_cpup_attr_flags(inode, h_inode->i_flags); ++} ++ ++void au_cpup_igen(struct inode *inode, struct inode *h_inode) ++{ ++ struct au_iinfo *iinfo = au_ii(inode); ++ ++ IiMustWriteLock(inode); ++ ++ iinfo->ii_higen = h_inode->i_generation; ++ iinfo->ii_hsb1 = h_inode->i_sb; ++} ++ ++void au_cpup_attr_all(struct inode *inode, int force) ++{ ++ struct inode *h_inode; ++ ++ h_inode = au_h_iptr(inode, au_ibtop(inode)); ++ au_cpup_attr_changeable(inode); ++ if (inode->i_nlink > 0) ++ au_cpup_attr_nlink(inode, force); ++ inode->i_rdev = h_inode->i_rdev; ++ inode->i_blkbits = h_inode->i_blkbits; ++ au_cpup_igen(inode, h_inode); ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++/* Note: dt_dentry and dt_h_dentry are not dget/dput-ed */ ++ ++/* keep the timestamps of the parent dir when cpup */ ++void au_dtime_store(struct au_dtime *dt, struct dentry *dentry, ++ struct path *h_path) ++{ ++ struct inode *h_inode; ++ ++ dt->dt_dentry = dentry; ++ dt->dt_h_path = *h_path; ++ h_inode = d_inode(h_path->dentry); ++ dt->dt_atime = h_inode->i_atime; ++ dt->dt_mtime = h_inode->i_mtime; ++ /* smp_mb(); */ ++} ++ ++void au_dtime_revert(struct au_dtime *dt) ++{ ++ struct iattr attr; ++ int err; ++ ++ attr.ia_atime = dt->dt_atime; ++ attr.ia_mtime = dt->dt_mtime; ++ attr.ia_valid = ATTR_FORCE | ATTR_MTIME | ATTR_MTIME_SET ++ | ATTR_ATIME | ATTR_ATIME_SET; ++ ++ /* no delegation since this is a directory */ ++ err = vfsub_notify_change(&dt->dt_h_path, &attr, /*delegated*/NULL); ++ if (unlikely(err)) ++ pr_warn("restoring timestamps failed(%d). ignored\n", err); ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++/* internal use only */ ++struct au_cpup_reg_attr { ++ int valid; ++ struct kstat st; ++ unsigned int iflags; /* inode->i_flags */ ++}; ++ ++static noinline_for_stack ++int cpup_iattr(struct dentry *dst, aufs_bindex_t bindex, struct path *h_src, ++ struct au_cpup_reg_attr *h_src_attr) ++{ ++ int err, sbits, icex; ++ unsigned int mnt_flags; ++ unsigned char verbose; ++ struct iattr ia; ++ struct path h_path; ++ struct inode *h_isrc, *h_idst; ++ struct kstat *h_st; ++ struct au_branch *br; ++ ++ br = au_sbr(dst->d_sb, bindex); ++ h_path.mnt = au_br_mnt(br); ++ h_path.dentry = au_h_dptr(dst, bindex); ++ h_idst = d_inode(h_path.dentry); ++ h_isrc = d_inode(h_src->dentry); ++ ia.ia_valid = ATTR_FORCE | ATTR_UID | ATTR_GID ++ | ATTR_ATIME | ATTR_MTIME ++ | ATTR_ATIME_SET | ATTR_MTIME_SET; ++ if (h_src_attr && h_src_attr->valid) { ++ h_st = &h_src_attr->st; ++ ia.ia_uid = h_st->uid; ++ ia.ia_gid = h_st->gid; ++ ia.ia_atime = h_st->atime; ++ ia.ia_mtime = h_st->mtime; ++ if (h_idst->i_mode != h_st->mode ++ && !S_ISLNK(h_idst->i_mode)) { ++ ia.ia_valid |= ATTR_MODE; ++ ia.ia_mode = h_st->mode; ++ } ++ sbits = !!(h_st->mode & (S_ISUID | S_ISGID)); ++ au_cpup_attr_flags(h_idst, h_src_attr->iflags); ++ } else { ++ ia.ia_uid = h_isrc->i_uid; ++ ia.ia_gid = h_isrc->i_gid; ++ ia.ia_atime = h_isrc->i_atime; ++ ia.ia_mtime = h_isrc->i_mtime; ++ if (h_idst->i_mode != h_isrc->i_mode ++ && !S_ISLNK(h_idst->i_mode)) { ++ ia.ia_valid |= ATTR_MODE; ++ ia.ia_mode = h_isrc->i_mode; ++ } ++ sbits = !!(h_isrc->i_mode & (S_ISUID | S_ISGID)); ++ au_cpup_attr_flags(h_idst, h_isrc->i_flags); ++ } ++ /* no delegation since it is just created */ ++ err = vfsub_notify_change(&h_path, &ia, /*delegated*/NULL); ++ ++ /* is this nfs only? */ ++ if (!err && sbits && au_test_nfs(h_path.dentry->d_sb)) { ++ ia.ia_valid = ATTR_FORCE | ATTR_MODE; ++ ia.ia_mode = h_isrc->i_mode; ++ err = vfsub_notify_change(&h_path, &ia, /*delegated*/NULL); ++ } ++ ++ icex = br->br_perm & AuBrAttr_ICEX; ++ if (!err) { ++ mnt_flags = au_mntflags(dst->d_sb); ++ verbose = !!au_opt_test(mnt_flags, VERBOSE); ++ err = au_cpup_xattr(&h_path, h_src, icex, verbose); ++ } ++ ++ return err; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++static int au_do_copy_file(struct file *dst, struct file *src, loff_t len, ++ char *buf, unsigned long blksize) ++{ ++ int err; ++ size_t sz, rbytes, wbytes; ++ unsigned char all_zero; ++ char *p, *zp; ++ struct inode *h_inode; ++ /* reduce stack usage */ ++ struct iattr *ia; ++ ++ zp = page_address(ZERO_PAGE(0)); ++ if (unlikely(!zp)) ++ return -ENOMEM; /* possible? */ ++ ++ err = 0; ++ all_zero = 0; ++ while (len) { ++ AuDbg("len %lld\n", len); ++ sz = blksize; ++ if (len < blksize) ++ sz = len; ++ ++ rbytes = 0; ++ /* todo: signal_pending? */ ++ while (!rbytes || err == -EAGAIN || err == -EINTR) { ++ rbytes = vfsub_read_k(src, buf, sz, &src->f_pos); ++ err = rbytes; ++ } ++ if (unlikely(err < 0)) ++ break; ++ ++ all_zero = 0; ++ if (len >= rbytes && rbytes == blksize) ++ all_zero = !memcmp(buf, zp, rbytes); ++ if (!all_zero) { ++ wbytes = rbytes; ++ p = buf; ++ while (wbytes) { ++ size_t b; ++ ++ b = vfsub_write_k(dst, p, wbytes, &dst->f_pos); ++ err = b; ++ /* todo: signal_pending? */ ++ if (unlikely(err == -EAGAIN || err == -EINTR)) ++ continue; ++ if (unlikely(err < 0)) ++ break; ++ wbytes -= b; ++ p += b; ++ } ++ if (unlikely(err < 0)) ++ break; ++ } else { ++ loff_t res; ++ ++ AuLabel(hole); ++ res = vfsub_llseek(dst, rbytes, SEEK_CUR); ++ err = res; ++ if (unlikely(res < 0)) ++ break; ++ } ++ len -= rbytes; ++ err = 0; ++ } ++ ++ /* the last block may be a hole */ ++ if (!err && all_zero) { ++ AuLabel(last hole); ++ ++ err = 1; ++ if (au_test_nfs(dst->f_path.dentry->d_sb)) { ++ /* nfs requires this step to make last hole */ ++ /* is this only nfs? */ ++ do { ++ /* todo: signal_pending? */ ++ err = vfsub_write_k(dst, "\0", 1, &dst->f_pos); ++ } while (err == -EAGAIN || err == -EINTR); ++ if (err == 1) ++ dst->f_pos--; ++ } ++ ++ if (err == 1) { ++ ia = (void *)buf; ++ ia->ia_size = dst->f_pos; ++ ia->ia_valid = ATTR_SIZE | ATTR_FILE; ++ ia->ia_file = dst; ++ h_inode = file_inode(dst); ++ inode_lock_nested(h_inode, AuLsc_I_CHILD2); ++ /* no delegation since it is just created */ ++ err = vfsub_notify_change(&dst->f_path, ia, ++ /*delegated*/NULL); ++ inode_unlock(h_inode); ++ } ++ } ++ ++ return err; ++} ++ ++int au_copy_file(struct file *dst, struct file *src, loff_t len) ++{ ++ int err; ++ unsigned long blksize; ++ unsigned char do_kfree; ++ char *buf; ++ struct super_block *h_sb; ++ ++ err = -ENOMEM; ++ h_sb = file_inode(dst)->i_sb; ++ blksize = h_sb->s_blocksize; ++ if (!blksize || PAGE_SIZE < blksize) ++ blksize = PAGE_SIZE; ++ AuDbg("blksize %lu\n", blksize); ++ do_kfree = (blksize != PAGE_SIZE && blksize >= sizeof(struct iattr *)); ++ if (do_kfree) ++ buf = kmalloc(blksize, GFP_NOFS); ++ else ++ buf = (void *)__get_free_page(GFP_NOFS); ++ if (unlikely(!buf)) ++ goto out; ++ ++ if (len > (1 << 22)) ++ AuDbg("copying a large file %lld\n", (long long)len); ++ ++ src->f_pos = 0; ++ dst->f_pos = 0; ++ err = au_do_copy_file(dst, src, len, buf, blksize); ++ if (do_kfree) { ++ AuDebugOn(!au_kfree_do_sz_test(blksize)); ++ au_kfree_do_rcu(buf); ++ } else ++ free_page((unsigned long)buf); ++ ++out: ++ return err; ++} ++ ++static int au_do_copy(struct file *dst, struct file *src, loff_t len) ++{ ++ int err; ++ struct super_block *h_src_sb; ++ struct inode *h_src_inode; ++ ++ h_src_inode = file_inode(src); ++ h_src_sb = h_src_inode->i_sb; ++ ++ /* XFS acquires inode_lock */ ++ if (!au_test_xfs(h_src_sb)) ++ err = au_copy_file(dst, src, len); ++ else { ++ inode_unlock_shared(h_src_inode); ++ err = au_copy_file(dst, src, len); ++ inode_lock_shared_nested(h_src_inode, AuLsc_I_CHILD); ++ } ++ ++ return err; ++} ++ ++static int au_clone_or_copy(struct file *dst, struct file *src, loff_t len) ++{ ++ int err; ++ loff_t lo; ++ struct super_block *h_src_sb; ++ struct inode *h_src_inode; ++ ++ h_src_inode = file_inode(src); ++ h_src_sb = h_src_inode->i_sb; ++ if (h_src_sb != file_inode(dst)->i_sb ++ || !dst->f_op->remap_file_range) { ++ err = au_do_copy(dst, src, len); ++ goto out; ++ } ++ ++ if (!au_test_nfs(h_src_sb)) { ++ inode_unlock_shared(h_src_inode); ++ lo = vfsub_clone_file_range(src, dst, len); ++ inode_lock_shared_nested(h_src_inode, AuLsc_I_CHILD); ++ } else ++ lo = vfsub_clone_file_range(src, dst, len); ++ if (lo == len) { ++ err = 0; ++ goto out; /* success */ ++ } else if (lo >= 0) ++ /* todo: possible? */ ++ /* paritially succeeded */ ++ AuDbg("lo %lld, len %lld. Retrying.\n", lo, len); ++ else if (lo != -EOPNOTSUPP) { ++ /* older XFS has a condition in cloning */ ++ err = lo; ++ goto out; ++ } ++ ++ /* the backend fs on NFS may not support cloning */ ++ err = au_do_copy(dst, src, len); ++ ++out: ++ AuTraceErr(err); ++ return err; ++} ++ ++/* ++ * to support a sparse file which is opened with O_APPEND, ++ * we need to close the file. ++ */ ++static int au_cp_regular(struct au_cp_generic *cpg) ++{ ++ int err, i; ++ enum { SRC, DST }; ++ struct { ++ aufs_bindex_t bindex; ++ unsigned int flags; ++ struct dentry *dentry; ++ int force_wr; ++ struct file *file; ++ } *f, file[] = { ++ { ++ .bindex = cpg->bsrc, ++ .flags = O_RDONLY | O_NOATIME | O_LARGEFILE, ++ }, ++ { ++ .bindex = cpg->bdst, ++ .flags = O_WRONLY | O_NOATIME | O_LARGEFILE, ++ .force_wr = !!au_ftest_cpup(cpg->flags, RWDST), ++ } ++ }; ++ struct au_branch *br; ++ struct super_block *sb, *h_src_sb; ++ struct inode *h_src_inode; ++ struct task_struct *tsk = current; ++ ++ /* bsrc branch can be ro/rw. */ ++ sb = cpg->dentry->d_sb; ++ f = file; ++ for (i = 0; i < 2; i++, f++) { ++ f->dentry = au_h_dptr(cpg->dentry, f->bindex); ++ f->file = au_h_open(cpg->dentry, f->bindex, f->flags, ++ /*file*/NULL, f->force_wr); ++ if (IS_ERR(f->file)) { ++ err = PTR_ERR(f->file); ++ if (i == SRC) ++ goto out; ++ else ++ goto out_src; ++ } ++ } ++ ++ /* try stopping to update while we copyup */ ++ h_src_inode = d_inode(file[SRC].dentry); ++ h_src_sb = h_src_inode->i_sb; ++ if (!au_test_nfs(h_src_sb)) ++ IMustLock(h_src_inode); ++ err = au_clone_or_copy(file[DST].file, file[SRC].file, cpg->len); ++ ++ /* i wonder if we had O_NO_DELAY_FPUT flag */ ++ if (tsk->flags & PF_KTHREAD) ++ __fput_sync(file[DST].file); ++ else { ++ /* it happened actually */ ++ fput(file[DST].file); ++ /* ++ * too bad. ++ * we have to call both since we don't know which place the file ++ * was added to. ++ */ ++ task_work_run(); ++ flush_delayed_fput(); ++ } ++ br = au_sbr(sb, file[DST].bindex); ++ au_lcnt_dec(&br->br_nfiles); ++ ++out_src: ++ fput(file[SRC].file); ++ br = au_sbr(sb, file[SRC].bindex); ++ au_lcnt_dec(&br->br_nfiles); ++out: ++ return err; ++} ++ ++static int au_do_cpup_regular(struct au_cp_generic *cpg, ++ struct au_cpup_reg_attr *h_src_attr) ++{ ++ int err, rerr; ++ loff_t l; ++ struct path h_path; ++ struct inode *h_src_inode, *h_dst_inode; ++ ++ err = 0; ++ h_src_inode = au_h_iptr(d_inode(cpg->dentry), cpg->bsrc); ++ l = i_size_read(h_src_inode); ++ if (cpg->len == -1 || l < cpg->len) ++ cpg->len = l; ++ if (cpg->len) { ++ /* try stopping to update while we are referencing */ ++ inode_lock_shared_nested(h_src_inode, AuLsc_I_CHILD); ++ au_pin_hdir_unlock(cpg->pin); ++ ++ h_path.dentry = au_h_dptr(cpg->dentry, cpg->bsrc); ++ h_path.mnt = au_sbr_mnt(cpg->dentry->d_sb, cpg->bsrc); ++ h_src_attr->iflags = h_src_inode->i_flags; ++ if (!au_test_nfs(h_src_inode->i_sb)) ++ err = vfsub_getattr(&h_path, &h_src_attr->st); ++ else { ++ inode_unlock_shared(h_src_inode); ++ err = vfsub_getattr(&h_path, &h_src_attr->st); ++ inode_lock_shared_nested(h_src_inode, AuLsc_I_CHILD); ++ } ++ if (unlikely(err)) { ++ inode_unlock_shared(h_src_inode); ++ goto out; ++ } ++ h_src_attr->valid = 1; ++ if (!au_test_nfs(h_src_inode->i_sb)) { ++ err = au_cp_regular(cpg); ++ inode_unlock_shared(h_src_inode); ++ } else { ++ inode_unlock_shared(h_src_inode); ++ err = au_cp_regular(cpg); ++ } ++ rerr = au_pin_hdir_relock(cpg->pin); ++ if (!err && rerr) ++ err = rerr; ++ } ++ if (!err && (h_src_inode->i_state & I_LINKABLE)) { ++ h_path.dentry = au_h_dptr(cpg->dentry, cpg->bdst); ++ h_dst_inode = d_inode(h_path.dentry); ++ spin_lock(&h_dst_inode->i_lock); ++ h_dst_inode->i_state |= I_LINKABLE; ++ spin_unlock(&h_dst_inode->i_lock); ++ } ++ ++out: ++ return err; ++} ++ ++static int au_do_cpup_symlink(struct path *h_path, struct dentry *h_src, ++ struct inode *h_dir) ++{ ++ int err; ++ DEFINE_DELAYED_CALL(done); ++ const char *sym; ++ ++ sym = vfs_get_link(h_src, &done); ++ err = PTR_ERR(sym); ++ if (IS_ERR(sym)) ++ goto out; ++ ++ err = vfsub_symlink(h_dir, h_path, sym); ++ ++out: ++ do_delayed_call(&done); ++ return err; ++} ++ ++/* ++ * regardless 'acl' option, reset all ACL. ++ * All ACL will be copied up later from the original entry on the lower branch. ++ */ ++static int au_reset_acl(struct inode *h_dir, struct path *h_path, umode_t mode) ++{ ++ int err; ++ struct dentry *h_dentry; ++ struct inode *h_inode; ++ struct user_namespace *h_userns; ++ ++ h_userns = mnt_user_ns(h_path->mnt); ++ h_dentry = h_path->dentry; ++ h_inode = d_inode(h_dentry); ++ /* forget_all_cached_acls(h_inode)); */ ++ err = vfsub_removexattr(h_userns, h_dentry, XATTR_NAME_POSIX_ACL_ACCESS); ++ AuTraceErr(err); ++ if (err == -EOPNOTSUPP) ++ err = 0; ++ if (!err) ++ err = vfsub_acl_chmod(h_userns, h_inode, mode); ++ ++ AuTraceErr(err); ++ return err; ++} ++ ++static int au_do_cpup_dir(struct au_cp_generic *cpg, struct dentry *dst_parent, ++ struct inode *h_dir, struct path *h_path) ++{ ++ int err; ++ struct inode *dir, *inode; ++ struct user_namespace *h_userns; ++ ++ h_userns = mnt_user_ns(h_path->mnt); ++ err = vfsub_removexattr(h_userns, h_path->dentry, ++ XATTR_NAME_POSIX_ACL_DEFAULT); ++ AuTraceErr(err); ++ if (err == -EOPNOTSUPP) ++ err = 0; ++ if (unlikely(err)) ++ goto out; ++ ++ /* ++ * strange behaviour from the users view, ++ * particularly setattr case ++ */ ++ dir = d_inode(dst_parent); ++ if (au_ibtop(dir) == cpg->bdst) ++ au_cpup_attr_nlink(dir, /*force*/1); ++ inode = d_inode(cpg->dentry); ++ au_cpup_attr_nlink(inode, /*force*/1); ++ ++out: ++ return err; ++} ++ ++static noinline_for_stack ++int cpup_entry(struct au_cp_generic *cpg, struct dentry *dst_parent, ++ struct au_cpup_reg_attr *h_src_attr) ++{ ++ int err; ++ umode_t mode; ++ unsigned int mnt_flags; ++ unsigned char isdir, isreg, force; ++ const unsigned char do_dt = !!au_ftest_cpup(cpg->flags, DTIME); ++ struct au_dtime dt; ++ struct path h_path; ++ struct dentry *h_src, *h_dst, *h_parent; ++ struct inode *h_inode, *h_dir; ++ struct super_block *sb; ++ ++ /* bsrc branch can be ro/rw. */ ++ h_src = au_h_dptr(cpg->dentry, cpg->bsrc); ++ h_inode = d_inode(h_src); ++ AuDebugOn(h_inode != au_h_iptr(d_inode(cpg->dentry), cpg->bsrc)); ++ ++ /* try stopping to be referenced while we are creating */ ++ h_dst = au_h_dptr(cpg->dentry, cpg->bdst); ++ if (au_ftest_cpup(cpg->flags, RENAME)) ++ AuDebugOn(strncmp(h_dst->d_name.name, AUFS_WH_PFX, ++ AUFS_WH_PFX_LEN)); ++ h_parent = h_dst->d_parent; /* dir inode is locked */ ++ h_dir = d_inode(h_parent); ++ IMustLock(h_dir); ++ AuDebugOn(h_parent != h_dst->d_parent); ++ ++ sb = cpg->dentry->d_sb; ++ h_path.mnt = au_sbr_mnt(sb, cpg->bdst); ++ if (do_dt) { ++ h_path.dentry = h_parent; ++ au_dtime_store(&dt, dst_parent, &h_path); ++ } ++ h_path.dentry = h_dst; ++ ++ isreg = 0; ++ isdir = 0; ++ mode = h_inode->i_mode; ++ switch (mode & S_IFMT) { ++ case S_IFREG: ++ isreg = 1; ++ err = vfsub_create(h_dir, &h_path, 0600, /*want_excl*/true); ++ if (!err) ++ err = au_do_cpup_regular(cpg, h_src_attr); ++ break; ++ case S_IFDIR: ++ isdir = 1; ++ err = vfsub_mkdir(h_dir, &h_path, mode); ++ if (!err) ++ err = au_do_cpup_dir(cpg, dst_parent, h_dir, &h_path); ++ break; ++ case S_IFLNK: ++ err = au_do_cpup_symlink(&h_path, h_src, h_dir); ++ break; ++ case S_IFCHR: ++ case S_IFBLK: ++ AuDebugOn(!capable(CAP_MKNOD)); ++ fallthrough; ++ case S_IFIFO: ++ case S_IFSOCK: ++ err = vfsub_mknod(h_dir, &h_path, mode, h_inode->i_rdev); ++ break; ++ default: ++ AuIOErr("Unknown inode type 0%o\n", mode); ++ err = -EIO; ++ } ++ if (!err) ++ err = au_reset_acl(h_dir, &h_path, mode); ++ ++ mnt_flags = au_mntflags(sb); ++ if (!au_opt_test(mnt_flags, UDBA_NONE) ++ && !isdir ++ && au_opt_test(mnt_flags, XINO) ++ && (h_inode->i_nlink == 1 ++ || (h_inode->i_state & I_LINKABLE)) ++ /* todo: unnecessary? */ ++ /* && d_inode(cpg->dentry)->i_nlink == 1 */ ++ && cpg->bdst < cpg->bsrc ++ && !au_ftest_cpup(cpg->flags, KEEPLINO)) ++ au_xino_write(sb, cpg->bsrc, h_inode->i_ino, /*ino*/0); ++ /* ignore this error */ ++ ++ if (!err) { ++ force = 0; ++ if (isreg) { ++ force = !!cpg->len; ++ if (cpg->len == -1) ++ force = !!i_size_read(h_inode); ++ } ++ au_fhsm_wrote(sb, cpg->bdst, force); ++ } ++ ++ if (do_dt) ++ au_dtime_revert(&dt); ++ return err; ++} ++ ++static int au_do_ren_after_cpup(struct au_cp_generic *cpg, struct path *h_path) ++{ ++ int err; ++ struct dentry *dentry, *h_dentry, *h_parent, *parent; ++ struct path h_ppath; ++ struct inode *h_dir; ++ aufs_bindex_t bdst; ++ ++ dentry = cpg->dentry; ++ bdst = cpg->bdst; ++ h_ppath.mnt = au_sbr_mnt(dentry->d_sb, bdst); ++ h_dentry = au_h_dptr(dentry, bdst); ++ if (!au_ftest_cpup(cpg->flags, OVERWRITE)) { ++ dget(h_dentry); ++ au_set_h_dptr(dentry, bdst, NULL); ++ err = au_lkup_neg(dentry, bdst, /*wh*/0); ++ if (!err) ++ h_path->dentry = dget(au_h_dptr(dentry, bdst)); ++ au_set_h_dptr(dentry, bdst, h_dentry); ++ } else { ++ err = 0; ++ parent = dget_parent(dentry); ++ h_ppath.dentry = au_h_dptr(parent, bdst); ++ dput(parent); ++ h_path->dentry = vfsub_lkup_one(&dentry->d_name, &h_ppath); ++ if (IS_ERR(h_path->dentry)) ++ err = PTR_ERR(h_path->dentry); ++ } ++ if (unlikely(err)) ++ goto out; ++ ++ h_parent = h_dentry->d_parent; /* dir inode is locked */ ++ h_dir = d_inode(h_parent); ++ IMustLock(h_dir); ++ AuDbg("%pd %pd\n", h_dentry, h_path->dentry); ++ /* no delegation since it is just created */ ++ err = vfsub_rename(h_dir, h_dentry, h_dir, h_path, /*delegated*/NULL, ++ /*flags*/0); ++ dput(h_path->dentry); ++ ++out: ++ return err; ++} ++ ++/* ++ * copyup the @dentry from @bsrc to @bdst. ++ * the caller must set the both of lower dentries. ++ * @len is for truncating when it is -1 copyup the entire file. ++ * in link/rename cases, @dst_parent may be different from the real one. ++ * basic->bsrc can be larger than basic->bdst. ++ * aufs doesn't touch the credential so ++ * security_inode_copy_up{,_xattr}() are unnecessary. ++ */ ++static int au_cpup_single(struct au_cp_generic *cpg, struct dentry *dst_parent) ++{ ++ int err, rerr; ++ aufs_bindex_t old_ibtop; ++ unsigned char isdir, plink; ++ struct dentry *h_src, *h_dst, *h_parent; ++ struct inode *dst_inode, *h_dir, *inode, *delegated, *src_inode; ++ struct super_block *sb; ++ struct au_branch *br; ++ struct path h_src_path; ++ /* to reduce stack size */ ++ struct { ++ struct au_dtime dt; ++ struct path h_path; ++ struct au_cpup_reg_attr h_src_attr; ++ } *a; ++ ++ err = -ENOMEM; ++ a = kmalloc(sizeof(*a), GFP_NOFS); ++ if (unlikely(!a)) ++ goto out; ++ a->h_src_attr.valid = 0; ++ ++ sb = cpg->dentry->d_sb; ++ br = au_sbr(sb, cpg->bdst); ++ a->h_path.mnt = au_br_mnt(br); ++ h_dst = au_h_dptr(cpg->dentry, cpg->bdst); ++ h_parent = h_dst->d_parent; /* dir inode is locked */ ++ h_dir = d_inode(h_parent); ++ IMustLock(h_dir); ++ ++ h_src = au_h_dptr(cpg->dentry, cpg->bsrc); ++ inode = d_inode(cpg->dentry); ++ ++ if (!dst_parent) ++ dst_parent = dget_parent(cpg->dentry); ++ else ++ dget(dst_parent); ++ ++ plink = !!au_opt_test(au_mntflags(sb), PLINK); ++ dst_inode = au_h_iptr(inode, cpg->bdst); ++ if (dst_inode) { ++ if (unlikely(!plink)) { ++ err = -EIO; ++ AuIOErr("hi%lu(i%lu) exists on b%d " ++ "but plink is disabled\n", ++ dst_inode->i_ino, inode->i_ino, cpg->bdst); ++ goto out_parent; ++ } ++ ++ if (dst_inode->i_nlink) { ++ const int do_dt = au_ftest_cpup(cpg->flags, DTIME); ++ ++ h_src = au_plink_lkup(inode, cpg->bdst); ++ err = PTR_ERR(h_src); ++ if (IS_ERR(h_src)) ++ goto out_parent; ++ if (unlikely(d_is_negative(h_src))) { ++ err = -EIO; ++ AuIOErr("i%lu exists on b%d " ++ "but not pseudo-linked\n", ++ inode->i_ino, cpg->bdst); ++ dput(h_src); ++ goto out_parent; ++ } ++ ++ if (do_dt) { ++ a->h_path.dentry = h_parent; ++ au_dtime_store(&a->dt, dst_parent, &a->h_path); ++ } ++ ++ a->h_path.dentry = h_dst; ++ delegated = NULL; ++ err = vfsub_link(h_src, h_dir, &a->h_path, &delegated); ++ if (!err && au_ftest_cpup(cpg->flags, RENAME)) ++ err = au_do_ren_after_cpup(cpg, &a->h_path); ++ if (do_dt) ++ au_dtime_revert(&a->dt); ++ if (unlikely(err == -EWOULDBLOCK)) { ++ pr_warn("cannot retry for NFSv4 delegation" ++ " for an internal link\n"); ++ iput(delegated); ++ } ++ dput(h_src); ++ goto out_parent; ++ } else ++ /* todo: cpup_wh_file? */ ++ /* udba work */ ++ au_update_ibrange(inode, /*do_put_zero*/1); ++ } ++ ++ isdir = S_ISDIR(inode->i_mode); ++ old_ibtop = au_ibtop(inode); ++ err = cpup_entry(cpg, dst_parent, &a->h_src_attr); ++ if (unlikely(err)) ++ goto out_rev; ++ dst_inode = d_inode(h_dst); ++ inode_lock_nested(dst_inode, AuLsc_I_CHILD2); ++ /* todo: necessary? */ ++ /* au_pin_hdir_unlock(cpg->pin); */ ++ ++ h_src_path.dentry = h_src; ++ h_src_path.mnt = au_sbr_mnt(sb, cpg->bsrc); ++ err = cpup_iattr(cpg->dentry, cpg->bdst, &h_src_path, &a->h_src_attr); ++ if (unlikely(err)) { ++ /* todo: necessary? */ ++ /* au_pin_hdir_relock(cpg->pin); */ /* ignore an error */ ++ inode_unlock(dst_inode); ++ goto out_rev; ++ } ++ ++ if (cpg->bdst < old_ibtop) { ++ if (S_ISREG(inode->i_mode)) { ++ err = au_dy_iaop(inode, cpg->bdst, dst_inode); ++ if (unlikely(err)) { ++ /* ignore an error */ ++ /* au_pin_hdir_relock(cpg->pin); */ ++ inode_unlock(dst_inode); ++ goto out_rev; ++ } ++ } ++ au_set_ibtop(inode, cpg->bdst); ++ } else ++ au_set_ibbot(inode, cpg->bdst); ++ au_set_h_iptr(inode, cpg->bdst, au_igrab(dst_inode), ++ au_hi_flags(inode, isdir)); ++ ++ /* todo: necessary? */ ++ /* err = au_pin_hdir_relock(cpg->pin); */ ++ inode_unlock(dst_inode); ++ if (unlikely(err)) ++ goto out_rev; ++ ++ src_inode = d_inode(h_src); ++ if (!isdir ++ && (src_inode->i_nlink > 1 ++ || src_inode->i_state & I_LINKABLE) ++ && plink) ++ au_plink_append(inode, cpg->bdst, h_dst); ++ ++ if (au_ftest_cpup(cpg->flags, RENAME)) { ++ a->h_path.dentry = h_dst; ++ err = au_do_ren_after_cpup(cpg, &a->h_path); ++ } ++ if (!err) ++ goto out_parent; /* success */ ++ ++ /* revert */ ++out_rev: ++ a->h_path.dentry = h_parent; ++ au_dtime_store(&a->dt, dst_parent, &a->h_path); ++ a->h_path.dentry = h_dst; ++ rerr = 0; ++ if (d_is_positive(h_dst)) { ++ if (!isdir) { ++ /* no delegation since it is just created */ ++ rerr = vfsub_unlink(h_dir, &a->h_path, ++ /*delegated*/NULL, /*force*/0); ++ } else ++ rerr = vfsub_rmdir(h_dir, &a->h_path); ++ } ++ au_dtime_revert(&a->dt); ++ if (rerr) { ++ AuIOErr("failed removing broken entry(%d, %d)\n", err, rerr); ++ err = -EIO; ++ } ++out_parent: ++ dput(dst_parent); ++ au_kfree_rcu(a); ++out: ++ return err; ++} ++ ++#if 0 /* reserved */ ++struct au_cpup_single_args { ++ int *errp; ++ struct au_cp_generic *cpg; ++ struct dentry *dst_parent; ++}; ++ ++static void au_call_cpup_single(void *args) ++{ ++ struct au_cpup_single_args *a = args; ++ ++ au_pin_hdir_acquire_nest(a->cpg->pin); ++ *a->errp = au_cpup_single(a->cpg, a->dst_parent); ++ au_pin_hdir_release(a->cpg->pin); ++} ++#endif ++ ++/* ++ * prevent SIGXFSZ in copy-up. ++ * testing CAP_MKNOD is for generic fs, ++ * but CAP_FSETID is for xfs only, currently. ++ */ ++static int au_cpup_sio_test(struct au_pin *pin, umode_t mode) ++{ ++ int do_sio; ++ struct super_block *sb; ++ struct inode *h_dir; ++ ++ do_sio = 0; ++ sb = au_pinned_parent(pin)->d_sb; ++ if (!au_wkq_test() ++ && (!au_sbi(sb)->si_plink_maint_pid ++ || au_plink_maint(sb, AuLock_NOPLM))) { ++ switch (mode & S_IFMT) { ++ case S_IFREG: ++ /* no condition about RLIMIT_FSIZE and the file size */ ++ do_sio = 1; ++ break; ++ case S_IFCHR: ++ case S_IFBLK: ++ do_sio = !capable(CAP_MKNOD); ++ break; ++ } ++ if (!do_sio) ++ do_sio = ((mode & (S_ISUID | S_ISGID)) ++ && !capable(CAP_FSETID)); ++ /* this workaround may be removed in the future */ ++ if (!do_sio) { ++ h_dir = au_pinned_h_dir(pin); ++ do_sio = h_dir->i_mode & S_ISVTX; ++ } ++ } ++ ++ return do_sio; ++} ++ ++#if 0 /* reserved */ ++int au_sio_cpup_single(struct au_cp_generic *cpg, struct dentry *dst_parent) ++{ ++ int err, wkq_err; ++ struct dentry *h_dentry; ++ ++ h_dentry = au_h_dptr(cpg->dentry, cpg->bsrc); ++ if (!au_cpup_sio_test(pin, d_inode(h_dentry)->i_mode)) ++ err = au_cpup_single(cpg, dst_parent); ++ else { ++ struct au_cpup_single_args args = { ++ .errp = &err, ++ .cpg = cpg, ++ .dst_parent = dst_parent ++ }; ++ wkq_err = au_wkq_wait(au_call_cpup_single, &args); ++ if (unlikely(wkq_err)) ++ err = wkq_err; ++ } ++ ++ return err; ++} ++#endif ++ ++/* ++ * copyup the @dentry from the first active lower branch to @bdst, ++ * using au_cpup_single(). ++ */ ++static int au_cpup_simple(struct au_cp_generic *cpg) ++{ ++ int err; ++ unsigned int flags_orig; ++ struct dentry *dentry; ++ ++ AuDebugOn(cpg->bsrc < 0); ++ ++ dentry = cpg->dentry; ++ DiMustWriteLock(dentry); ++ ++ err = au_lkup_neg(dentry, cpg->bdst, /*wh*/1); ++ if (!err) { ++ flags_orig = cpg->flags; ++ au_fset_cpup(cpg->flags, RENAME); ++ err = au_cpup_single(cpg, NULL); ++ cpg->flags = flags_orig; ++ if (!err) ++ return 0; /* success */ ++ ++ /* revert */ ++ au_set_h_dptr(dentry, cpg->bdst, NULL); ++ au_set_dbtop(dentry, cpg->bsrc); ++ } ++ ++ return err; ++} ++ ++struct au_cpup_simple_args { ++ int *errp; ++ struct au_cp_generic *cpg; ++}; ++ ++static void au_call_cpup_simple(void *args) ++{ ++ struct au_cpup_simple_args *a = args; ++ ++ au_pin_hdir_acquire_nest(a->cpg->pin); ++ *a->errp = au_cpup_simple(a->cpg); ++ au_pin_hdir_release(a->cpg->pin); ++} ++ ++static int au_do_sio_cpup_simple(struct au_cp_generic *cpg) ++{ ++ int err, wkq_err; ++ struct dentry *dentry, *parent; ++ struct file *h_file; ++ struct inode *h_dir; ++ struct user_namespace *h_userns; ++ ++ dentry = cpg->dentry; ++ h_file = NULL; ++ if (au_ftest_cpup(cpg->flags, HOPEN)) { ++ AuDebugOn(cpg->bsrc < 0); ++ h_file = au_h_open_pre(dentry, cpg->bsrc, /*force_wr*/0); ++ err = PTR_ERR(h_file); ++ if (IS_ERR(h_file)) ++ goto out; ++ } ++ ++ parent = dget_parent(dentry); ++ h_dir = au_h_iptr(d_inode(parent), cpg->bdst); ++ h_userns = au_sbr_userns(dentry->d_sb, cpg->bdst); ++ if (!au_test_h_perm_sio(h_userns, h_dir, MAY_EXEC | MAY_WRITE) ++ && !au_cpup_sio_test(cpg->pin, d_inode(dentry)->i_mode)) ++ err = au_cpup_simple(cpg); ++ else { ++ struct au_cpup_simple_args args = { ++ .errp = &err, ++ .cpg = cpg ++ }; ++ wkq_err = au_wkq_wait(au_call_cpup_simple, &args); ++ if (unlikely(wkq_err)) ++ err = wkq_err; ++ } ++ ++ dput(parent); ++ if (h_file) ++ au_h_open_post(dentry, cpg->bsrc, h_file); ++ ++out: ++ return err; ++} ++ ++int au_sio_cpup_simple(struct au_cp_generic *cpg) ++{ ++ aufs_bindex_t bsrc, bbot; ++ struct dentry *dentry, *h_dentry; ++ ++ if (cpg->bsrc < 0) { ++ dentry = cpg->dentry; ++ bbot = au_dbbot(dentry); ++ for (bsrc = cpg->bdst + 1; bsrc <= bbot; bsrc++) { ++ h_dentry = au_h_dptr(dentry, bsrc); ++ if (h_dentry) { ++ AuDebugOn(d_is_negative(h_dentry)); ++ break; ++ } ++ } ++ AuDebugOn(bsrc > bbot); ++ cpg->bsrc = bsrc; ++ } ++ AuDebugOn(cpg->bsrc <= cpg->bdst); ++ return au_do_sio_cpup_simple(cpg); ++} ++ ++int au_sio_cpdown_simple(struct au_cp_generic *cpg) ++{ ++ AuDebugOn(cpg->bdst <= cpg->bsrc); ++ return au_do_sio_cpup_simple(cpg); ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++/* ++ * copyup the deleted file for writing. ++ */ ++static int au_do_cpup_wh(struct au_cp_generic *cpg, struct dentry *wh_dentry, ++ struct file *file) ++{ ++ int err; ++ unsigned int flags_orig; ++ aufs_bindex_t bsrc_orig; ++ struct au_dinfo *dinfo; ++ struct { ++ struct au_hdentry *hd; ++ struct dentry *h_dentry; ++ } hdst, hsrc; ++ ++ dinfo = au_di(cpg->dentry); ++ AuRwMustWriteLock(&dinfo->di_rwsem); ++ ++ bsrc_orig = cpg->bsrc; ++ cpg->bsrc = dinfo->di_btop; ++ hdst.hd = au_hdentry(dinfo, cpg->bdst); ++ hdst.h_dentry = hdst.hd->hd_dentry; ++ hdst.hd->hd_dentry = wh_dentry; ++ dinfo->di_btop = cpg->bdst; ++ ++ hsrc.h_dentry = NULL; ++ if (file) { ++ hsrc.hd = au_hdentry(dinfo, cpg->bsrc); ++ hsrc.h_dentry = hsrc.hd->hd_dentry; ++ hsrc.hd->hd_dentry = au_hf_top(file)->f_path.dentry; ++ } ++ flags_orig = cpg->flags; ++ cpg->flags = !AuCpup_DTIME; ++ err = au_cpup_single(cpg, /*h_parent*/NULL); ++ cpg->flags = flags_orig; ++ if (file) { ++ if (!err) ++ err = au_reopen_nondir(file); ++ hsrc.hd->hd_dentry = hsrc.h_dentry; ++ } ++ hdst.hd->hd_dentry = hdst.h_dentry; ++ dinfo->di_btop = cpg->bsrc; ++ cpg->bsrc = bsrc_orig; ++ ++ return err; ++} ++ ++static int au_cpup_wh(struct au_cp_generic *cpg, struct file *file) ++{ ++ int err; ++ aufs_bindex_t bdst; ++ struct au_dtime dt; ++ struct dentry *dentry, *parent, *h_parent, *wh_dentry; ++ struct au_branch *br; ++ struct path h_path; ++ ++ dentry = cpg->dentry; ++ bdst = cpg->bdst; ++ br = au_sbr(dentry->d_sb, bdst); ++ parent = dget_parent(dentry); ++ h_parent = au_h_dptr(parent, bdst); ++ wh_dentry = au_whtmp_lkup(h_parent, br, &dentry->d_name); ++ err = PTR_ERR(wh_dentry); ++ if (IS_ERR(wh_dentry)) ++ goto out; ++ ++ h_path.dentry = h_parent; ++ h_path.mnt = au_br_mnt(br); ++ au_dtime_store(&dt, parent, &h_path); ++ err = au_do_cpup_wh(cpg, wh_dentry, file); ++ if (unlikely(err)) ++ goto out_wh; ++ ++ dget(wh_dentry); ++ h_path.dentry = wh_dentry; ++ if (!d_is_dir(wh_dentry)) { ++ /* no delegation since it is just created */ ++ err = vfsub_unlink(d_inode(h_parent), &h_path, ++ /*delegated*/NULL, /*force*/0); ++ } else ++ err = vfsub_rmdir(d_inode(h_parent), &h_path); ++ if (unlikely(err)) { ++ AuIOErr("failed remove copied-up tmp file %pd(%d)\n", ++ wh_dentry, err); ++ err = -EIO; ++ } ++ au_dtime_revert(&dt); ++ au_set_hi_wh(d_inode(dentry), bdst, wh_dentry); ++ ++out_wh: ++ dput(wh_dentry); ++out: ++ dput(parent); ++ return err; ++} ++ ++struct au_cpup_wh_args { ++ int *errp; ++ struct au_cp_generic *cpg; ++ struct file *file; ++}; ++ ++static void au_call_cpup_wh(void *args) ++{ ++ struct au_cpup_wh_args *a = args; ++ ++ au_pin_hdir_acquire_nest(a->cpg->pin); ++ *a->errp = au_cpup_wh(a->cpg, a->file); ++ au_pin_hdir_release(a->cpg->pin); ++} ++ ++int au_sio_cpup_wh(struct au_cp_generic *cpg, struct file *file) ++{ ++ int err, wkq_err; ++ aufs_bindex_t bdst; ++ struct dentry *dentry, *parent, *h_orph, *h_parent; ++ struct inode *dir, *h_dir, *h_tmpdir; ++ struct au_wbr *wbr; ++ struct au_pin wh_pin, *pin_orig; ++ struct user_namespace *h_userns; ++ ++ dentry = cpg->dentry; ++ bdst = cpg->bdst; ++ parent = dget_parent(dentry); ++ dir = d_inode(parent); ++ h_orph = NULL; ++ h_parent = NULL; ++ h_dir = au_igrab(au_h_iptr(dir, bdst)); ++ h_tmpdir = h_dir; ++ pin_orig = NULL; ++ if (!h_dir->i_nlink) { ++ wbr = au_sbr(dentry->d_sb, bdst)->br_wbr; ++ h_orph = wbr->wbr_orph; ++ ++ h_parent = dget(au_h_dptr(parent, bdst)); ++ au_set_h_dptr(parent, bdst, dget(h_orph)); ++ h_tmpdir = d_inode(h_orph); ++ au_set_h_iptr(dir, bdst, au_igrab(h_tmpdir), /*flags*/0); ++ ++ inode_lock_nested(h_tmpdir, AuLsc_I_PARENT3); ++ /* todo: au_h_open_pre()? */ ++ ++ pin_orig = cpg->pin; ++ au_pin_init(&wh_pin, dentry, bdst, AuLsc_DI_PARENT, ++ AuLsc_I_PARENT3, cpg->pin->udba, AuPin_DI_LOCKED); ++ cpg->pin = &wh_pin; ++ } ++ ++ h_userns = au_sbr_userns(dentry->d_sb, bdst); ++ if (!au_test_h_perm_sio(h_userns, h_tmpdir, MAY_EXEC | MAY_WRITE) ++ && !au_cpup_sio_test(cpg->pin, d_inode(dentry)->i_mode)) ++ err = au_cpup_wh(cpg, file); ++ else { ++ struct au_cpup_wh_args args = { ++ .errp = &err, ++ .cpg = cpg, ++ .file = file ++ }; ++ wkq_err = au_wkq_wait(au_call_cpup_wh, &args); ++ if (unlikely(wkq_err)) ++ err = wkq_err; ++ } ++ ++ if (h_orph) { ++ inode_unlock(h_tmpdir); ++ /* todo: au_h_open_post()? */ ++ au_set_h_iptr(dir, bdst, au_igrab(h_dir), /*flags*/0); ++ au_set_h_dptr(parent, bdst, h_parent); ++ AuDebugOn(!pin_orig); ++ cpg->pin = pin_orig; ++ } ++ iput(h_dir); ++ dput(parent); ++ ++ return err; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++/* ++ * generic routine for both of copy-up and copy-down. ++ */ ++/* cf. revalidate function in file.c */ ++int au_cp_dirs(struct dentry *dentry, aufs_bindex_t bdst, ++ int (*cp)(struct dentry *dentry, aufs_bindex_t bdst, ++ struct au_pin *pin, ++ struct dentry *h_parent, void *arg), ++ void *arg) ++{ ++ int err; ++ struct au_pin pin; ++ struct dentry *d, *parent, *h_parent, *real_parent, *h_dentry; ++ ++ err = 0; ++ parent = dget_parent(dentry); ++ if (IS_ROOT(parent)) ++ goto out; ++ ++ au_pin_init(&pin, dentry, bdst, AuLsc_DI_PARENT2, AuLsc_I_PARENT2, ++ au_opt_udba(dentry->d_sb), AuPin_MNT_WRITE); ++ ++ /* do not use au_dpage */ ++ real_parent = parent; ++ while (1) { ++ dput(parent); ++ parent = dget_parent(dentry); ++ h_parent = au_h_dptr(parent, bdst); ++ if (h_parent) ++ goto out; /* success */ ++ ++ /* find top dir which is necessary to cpup */ ++ do { ++ d = parent; ++ dput(parent); ++ parent = dget_parent(d); ++ di_read_lock_parent3(parent, !AuLock_IR); ++ h_parent = au_h_dptr(parent, bdst); ++ di_read_unlock(parent, !AuLock_IR); ++ } while (!h_parent); ++ ++ if (d != real_parent) ++ di_write_lock_child3(d); ++ ++ /* somebody else might create while we were sleeping */ ++ h_dentry = au_h_dptr(d, bdst); ++ if (!h_dentry || d_is_negative(h_dentry)) { ++ if (h_dentry) ++ au_update_dbtop(d); ++ ++ au_pin_set_dentry(&pin, d); ++ err = au_do_pin(&pin); ++ if (!err) { ++ err = cp(d, bdst, &pin, h_parent, arg); ++ au_unpin(&pin); ++ } ++ } ++ ++ if (d != real_parent) ++ di_write_unlock(d); ++ if (unlikely(err)) ++ break; ++ } ++ ++out: ++ dput(parent); ++ return err; ++} ++ ++static int au_cpup_dir(struct dentry *dentry, aufs_bindex_t bdst, ++ struct au_pin *pin, ++ struct dentry *h_parent __maybe_unused, ++ void *arg __maybe_unused) ++{ ++ struct au_cp_generic cpg = { ++ .dentry = dentry, ++ .bdst = bdst, ++ .bsrc = -1, ++ .len = 0, ++ .pin = pin, ++ .flags = AuCpup_DTIME ++ }; ++ return au_sio_cpup_simple(&cpg); ++} ++ ++int au_cpup_dirs(struct dentry *dentry, aufs_bindex_t bdst) ++{ ++ return au_cp_dirs(dentry, bdst, au_cpup_dir, NULL); ++} ++ ++int au_test_and_cpup_dirs(struct dentry *dentry, aufs_bindex_t bdst) ++{ ++ int err; ++ struct dentry *parent; ++ struct inode *dir; ++ ++ parent = dget_parent(dentry); ++ dir = d_inode(parent); ++ err = 0; ++ if (au_h_iptr(dir, bdst)) ++ goto out; ++ ++ di_read_unlock(parent, AuLock_IR); ++ di_write_lock_parent(parent); ++ /* someone else might change our inode while we were sleeping */ ++ if (!au_h_iptr(dir, bdst)) ++ err = au_cpup_dirs(dentry, bdst); ++ di_downgrade_lock(parent, AuLock_IR); ++ ++out: ++ dput(parent); ++ return err; ++} +diff -Naur linux-5.15/fs/aufs/cpup.h aufs5-linux-aufs5.15/fs/aufs/cpup.h +--- linux-5.15/fs/aufs/cpup.h 1970-01-01 03:00:00.000000000 +0300 ++++ aufs5-linux-aufs5.15/fs/aufs/cpup.h 2022-03-07 13:48:09.000000000 +0300 +@@ -0,0 +1,87 @@ ++/* SPDX-License-Identifier: GPL-2.0 */ ++/* ++ * Copyright (C) 2005-2021 Junjiro R. Okajima ++ */ ++ ++/* ++ * copy-up/down functions ++ */ ++ ++#ifndef __AUFS_CPUP_H__ ++#define __AUFS_CPUP_H__ ++ ++#ifdef __KERNEL__ ++ ++#include ++ ++struct inode; ++struct file; ++struct au_pin; ++ ++void au_cpup_attr_flags(struct inode *dst, unsigned int iflags); ++void au_cpup_attr_timesizes(struct inode *inode); ++void au_cpup_attr_nlink(struct inode *inode, int force); ++void au_cpup_attr_changeable(struct inode *inode); ++void au_cpup_igen(struct inode *inode, struct inode *h_inode); ++void au_cpup_attr_all(struct inode *inode, int force); ++ ++/* ---------------------------------------------------------------------- */ ++ ++struct au_cp_generic { ++ struct dentry *dentry; ++ aufs_bindex_t bdst, bsrc; ++ loff_t len; ++ struct au_pin *pin; ++ unsigned int flags; ++}; ++ ++/* cpup flags */ ++#define AuCpup_DTIME 1 /* do dtime_store/revert */ ++#define AuCpup_KEEPLINO (1 << 1) /* do not clear the lower xino, ++ for link(2) */ ++#define AuCpup_RENAME (1 << 2) /* rename after cpup */ ++#define AuCpup_HOPEN (1 << 3) /* call h_open_pre/post() in ++ cpup */ ++#define AuCpup_OVERWRITE (1 << 4) /* allow overwriting the ++ existing entry */ ++#define AuCpup_RWDST (1 << 5) /* force write target even if ++ the branch is marked as RO */ ++ ++#ifndef CONFIG_AUFS_BR_HFSPLUS ++#undef AuCpup_HOPEN ++#define AuCpup_HOPEN 0 ++#endif ++ ++#define au_ftest_cpup(flags, name) ((flags) & AuCpup_##name) ++#define au_fset_cpup(flags, name) \ ++ do { (flags) |= AuCpup_##name; } while (0) ++#define au_fclr_cpup(flags, name) \ ++ do { (flags) &= ~AuCpup_##name; } while (0) ++ ++int au_copy_file(struct file *dst, struct file *src, loff_t len); ++int au_sio_cpup_simple(struct au_cp_generic *cpg); ++int au_sio_cpdown_simple(struct au_cp_generic *cpg); ++int au_sio_cpup_wh(struct au_cp_generic *cpg, struct file *file); ++ ++int au_cp_dirs(struct dentry *dentry, aufs_bindex_t bdst, ++ int (*cp)(struct dentry *dentry, aufs_bindex_t bdst, ++ struct au_pin *pin, ++ struct dentry *h_parent, void *arg), ++ void *arg); ++int au_cpup_dirs(struct dentry *dentry, aufs_bindex_t bdst); ++int au_test_and_cpup_dirs(struct dentry *dentry, aufs_bindex_t bdst); ++ ++/* ---------------------------------------------------------------------- */ ++ ++/* keep timestamps when copyup */ ++struct au_dtime { ++ struct dentry *dt_dentry; ++ struct path dt_h_path; ++ struct timespec64 dt_atime, dt_mtime; ++}; ++void au_dtime_store(struct au_dtime *dt, struct dentry *dentry, ++ struct path *h_path); ++void au_dtime_revert(struct au_dtime *dt); ++ ++#endif /* __KERNEL__ */ ++#endif /* __AUFS_CPUP_H__ */ +diff -Naur linux-5.15/fs/aufs/dbgaufs.c aufs5-linux-aufs5.15/fs/aufs/dbgaufs.c +--- linux-5.15/fs/aufs/dbgaufs.c 1970-01-01 03:00:00.000000000 +0300 ++++ aufs5-linux-aufs5.15/fs/aufs/dbgaufs.c 2022-03-07 13:48:09.000000000 +0300 +@@ -0,0 +1,513 @@ ++// SPDX-License-Identifier: GPL-2.0 ++/* ++ * Copyright (C) 2005-2021 Junjiro R. Okajima ++ */ ++ ++/* ++ * debugfs interface ++ */ ++ ++#include ++#include "aufs.h" ++ ++#ifndef CONFIG_SYSFS ++#error DEBUG_FS depends upon SYSFS ++#endif ++ ++static struct dentry *dbgaufs; ++static const mode_t dbgaufs_mode = 0444; ++ ++/* 20 is max digits length of ulong 64 */ ++struct dbgaufs_arg { ++ int n; ++ char a[20 * 4]; ++}; ++ ++/* ++ * common function for all XINO files ++ */ ++static int dbgaufs_xi_release(struct inode *inode __maybe_unused, ++ struct file *file) ++{ ++ void *p; ++ ++ p = file->private_data; ++ if (p) { ++ /* this is struct dbgaufs_arg */ ++ AuDebugOn(!au_kfree_sz_test(p)); ++ au_kfree_do_rcu(p); ++ } ++ return 0; ++} ++ ++static int dbgaufs_xi_open(struct file *xf, struct file *file, int do_fcnt, ++ int cnt) ++{ ++ int err; ++ struct kstat st; ++ struct dbgaufs_arg *p; ++ ++ err = -ENOMEM; ++ p = kmalloc(sizeof(*p), GFP_NOFS); ++ if (unlikely(!p)) ++ goto out; ++ ++ err = 0; ++ p->n = 0; ++ file->private_data = p; ++ if (!xf) ++ goto out; ++ ++ err = vfsub_getattr(&xf->f_path, &st); ++ if (!err) { ++ if (do_fcnt) ++ p->n = snprintf ++ (p->a, sizeof(p->a), "%d, %llux%u %lld\n", ++ cnt, st.blocks, st.blksize, ++ (long long)st.size); ++ else ++ p->n = snprintf(p->a, sizeof(p->a), "%llux%u %lld\n", ++ st.blocks, st.blksize, ++ (long long)st.size); ++ AuDebugOn(p->n >= sizeof(p->a)); ++ } else { ++ p->n = snprintf(p->a, sizeof(p->a), "err %d\n", err); ++ err = 0; ++ } ++ ++out: ++ return err; ++} ++ ++static ssize_t dbgaufs_xi_read(struct file *file, char __user *buf, ++ size_t count, loff_t *ppos) ++{ ++ struct dbgaufs_arg *p; ++ ++ p = file->private_data; ++ return simple_read_from_buffer(buf, count, ppos, p->a, p->n); ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++struct dbgaufs_plink_arg { ++ int n; ++ char a[]; ++}; ++ ++static int dbgaufs_plink_release(struct inode *inode __maybe_unused, ++ struct file *file) ++{ ++ free_page((unsigned long)file->private_data); ++ return 0; ++} ++ ++static int dbgaufs_plink_open(struct inode *inode, struct file *file) ++{ ++ int err, i, limit; ++ unsigned long n, sum; ++ struct dbgaufs_plink_arg *p; ++ struct au_sbinfo *sbinfo; ++ struct super_block *sb; ++ struct hlist_bl_head *hbl; ++ ++ err = -ENOMEM; ++ p = (void *)get_zeroed_page(GFP_NOFS); ++ if (unlikely(!p)) ++ goto out; ++ ++ err = -EFBIG; ++ sbinfo = inode->i_private; ++ sb = sbinfo->si_sb; ++ si_noflush_read_lock(sb); ++ if (au_opt_test(au_mntflags(sb), PLINK)) { ++ limit = PAGE_SIZE - sizeof(p->n); ++ ++ /* the number of buckets */ ++ n = snprintf(p->a + p->n, limit, "%d\n", AuPlink_NHASH); ++ p->n += n; ++ limit -= n; ++ ++ sum = 0; ++ for (i = 0, hbl = sbinfo->si_plink; i < AuPlink_NHASH; ++ i++, hbl++) { ++ n = au_hbl_count(hbl); ++ sum += n; ++ ++ n = snprintf(p->a + p->n, limit, "%lu ", n); ++ p->n += n; ++ limit -= n; ++ if (unlikely(limit <= 0)) ++ goto out_free; ++ } ++ p->a[p->n - 1] = '\n'; ++ ++ /* the sum of plinks */ ++ n = snprintf(p->a + p->n, limit, "%lu\n", sum); ++ p->n += n; ++ limit -= n; ++ if (unlikely(limit <= 0)) ++ goto out_free; ++ } else { ++#define str "1\n0\n0\n" ++ p->n = sizeof(str) - 1; ++ strcpy(p->a, str); ++#undef str ++ } ++ si_read_unlock(sb); ++ ++ err = 0; ++ file->private_data = p; ++ goto out; /* success */ ++ ++out_free: ++ free_page((unsigned long)p); ++out: ++ return err; ++} ++ ++static ssize_t dbgaufs_plink_read(struct file *file, char __user *buf, ++ size_t count, loff_t *ppos) ++{ ++ struct dbgaufs_plink_arg *p; ++ ++ p = file->private_data; ++ return simple_read_from_buffer(buf, count, ppos, p->a, p->n); ++} ++ ++static const struct file_operations dbgaufs_plink_fop = { ++ .owner = THIS_MODULE, ++ .open = dbgaufs_plink_open, ++ .release = dbgaufs_plink_release, ++ .read = dbgaufs_plink_read ++}; ++ ++/* ---------------------------------------------------------------------- */ ++ ++static int dbgaufs_xib_open(struct inode *inode, struct file *file) ++{ ++ int err; ++ struct au_sbinfo *sbinfo; ++ struct super_block *sb; ++ ++ sbinfo = inode->i_private; ++ sb = sbinfo->si_sb; ++ si_noflush_read_lock(sb); ++ err = dbgaufs_xi_open(sbinfo->si_xib, file, /*do_fcnt*/0, /*cnt*/0); ++ si_read_unlock(sb); ++ return err; ++} ++ ++static const struct file_operations dbgaufs_xib_fop = { ++ .owner = THIS_MODULE, ++ .open = dbgaufs_xib_open, ++ .release = dbgaufs_xi_release, ++ .read = dbgaufs_xi_read ++}; ++ ++/* ---------------------------------------------------------------------- */ ++ ++#define DbgaufsXi_PREFIX "xi" ++ ++static int dbgaufs_xino_open(struct inode *inode, struct file *file) ++{ ++ int err, idx; ++ long l; ++ aufs_bindex_t bindex; ++ char *p, a[sizeof(DbgaufsXi_PREFIX) + 8]; ++ struct au_sbinfo *sbinfo; ++ struct super_block *sb; ++ struct au_xino *xi; ++ struct file *xf; ++ struct qstr *name; ++ struct au_branch *br; ++ ++ err = -ENOENT; ++ name = &file->f_path.dentry->d_name; ++ if (unlikely(name->len < sizeof(DbgaufsXi_PREFIX) ++ || memcmp(name->name, DbgaufsXi_PREFIX, ++ sizeof(DbgaufsXi_PREFIX) - 1))) ++ goto out; ++ ++ AuDebugOn(name->len >= sizeof(a)); ++ memcpy(a, name->name, name->len); ++ a[name->len] = '\0'; ++ p = strchr(a, '-'); ++ if (p) ++ *p = '\0'; ++ err = kstrtol(a + sizeof(DbgaufsXi_PREFIX) - 1, 10, &l); ++ if (unlikely(err)) ++ goto out; ++ bindex = l; ++ idx = 0; ++ if (p) { ++ err = kstrtol(p + 1, 10, &l); ++ if (unlikely(err)) ++ goto out; ++ idx = l; ++ } ++ ++ err = -ENOENT; ++ sbinfo = inode->i_private; ++ sb = sbinfo->si_sb; ++ si_noflush_read_lock(sb); ++ if (unlikely(bindex < 0 || bindex > au_sbbot(sb))) ++ goto out_si; ++ br = au_sbr(sb, bindex); ++ xi = br->br_xino; ++ if (unlikely(idx >= xi->xi_nfile)) ++ goto out_si; ++ xf = au_xino_file(xi, idx); ++ if (xf) ++ err = dbgaufs_xi_open(xf, file, /*do_fcnt*/1, ++ au_xino_count(br)); ++ ++out_si: ++ si_read_unlock(sb); ++out: ++ AuTraceErr(err); ++ return err; ++} ++ ++static const struct file_operations dbgaufs_xino_fop = { ++ .owner = THIS_MODULE, ++ .open = dbgaufs_xino_open, ++ .release = dbgaufs_xi_release, ++ .read = dbgaufs_xi_read ++}; ++ ++void dbgaufs_xino_del(struct au_branch *br) ++{ ++ struct dentry *dbgaufs; ++ ++ dbgaufs = br->br_dbgaufs; ++ if (!dbgaufs) ++ return; ++ ++ br->br_dbgaufs = NULL; ++ /* debugfs acquires the parent i_mutex */ ++ lockdep_off(); ++ debugfs_remove(dbgaufs); ++ lockdep_on(); ++} ++ ++void dbgaufs_brs_del(struct super_block *sb, aufs_bindex_t bindex) ++{ ++ aufs_bindex_t bbot; ++ struct au_branch *br; ++ ++ if (!au_sbi(sb)->si_dbgaufs) ++ return; ++ ++ bbot = au_sbbot(sb); ++ for (; bindex <= bbot; bindex++) { ++ br = au_sbr(sb, bindex); ++ dbgaufs_xino_del(br); ++ } ++} ++ ++static void dbgaufs_br_do_add(struct super_block *sb, aufs_bindex_t bindex, ++ unsigned int idx, struct dentry *parent, ++ struct au_sbinfo *sbinfo) ++{ ++ struct au_branch *br; ++ struct dentry *d; ++ /* "xi" bindex(5) "-" idx(2) NULL */ ++ char name[sizeof(DbgaufsXi_PREFIX) + 8]; ++ ++ if (!idx) ++ snprintf(name, sizeof(name), DbgaufsXi_PREFIX "%d", bindex); ++ else ++ snprintf(name, sizeof(name), DbgaufsXi_PREFIX "%d-%u", ++ bindex, idx); ++ br = au_sbr(sb, bindex); ++ if (br->br_dbgaufs) { ++ struct qstr qstr = QSTR_INIT(name, strlen(name)); ++ ++ if (!au_qstreq(&br->br_dbgaufs->d_name, &qstr)) { ++ /* debugfs acquires the parent i_mutex */ ++ lockdep_off(); ++ d = debugfs_rename(parent, br->br_dbgaufs, parent, ++ name); ++ lockdep_on(); ++ if (unlikely(!d)) ++ pr_warn("failed renaming %pd/%s, ignored.\n", ++ parent, name); ++ } ++ } else { ++ lockdep_off(); ++ br->br_dbgaufs = debugfs_create_file(name, dbgaufs_mode, parent, ++ sbinfo, &dbgaufs_xino_fop); ++ lockdep_on(); ++ if (unlikely(!br->br_dbgaufs)) ++ pr_warn("failed creating %pd/%s, ignored.\n", ++ parent, name); ++ } ++} ++ ++static void dbgaufs_br_add(struct super_block *sb, aufs_bindex_t bindex, ++ struct dentry *parent, struct au_sbinfo *sbinfo) ++{ ++ struct au_branch *br; ++ struct au_xino *xi; ++ unsigned int u; ++ ++ br = au_sbr(sb, bindex); ++ xi = br->br_xino; ++ for (u = 0; u < xi->xi_nfile; u++) ++ dbgaufs_br_do_add(sb, bindex, u, parent, sbinfo); ++} ++ ++void dbgaufs_brs_add(struct super_block *sb, aufs_bindex_t bindex, int topdown) ++{ ++ struct au_sbinfo *sbinfo; ++ struct dentry *parent; ++ aufs_bindex_t bbot; ++ ++ if (!au_opt_test(au_mntflags(sb), XINO)) ++ return; ++ ++ sbinfo = au_sbi(sb); ++ parent = sbinfo->si_dbgaufs; ++ if (!parent) ++ return; ++ ++ bbot = au_sbbot(sb); ++ if (topdown) ++ for (; bindex <= bbot; bindex++) ++ dbgaufs_br_add(sb, bindex, parent, sbinfo); ++ else ++ for (; bbot >= bindex; bbot--) ++ dbgaufs_br_add(sb, bbot, parent, sbinfo); ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++#ifdef CONFIG_AUFS_EXPORT ++static int dbgaufs_xigen_open(struct inode *inode, struct file *file) ++{ ++ int err; ++ struct au_sbinfo *sbinfo; ++ struct super_block *sb; ++ ++ sbinfo = inode->i_private; ++ sb = sbinfo->si_sb; ++ si_noflush_read_lock(sb); ++ err = dbgaufs_xi_open(sbinfo->si_xigen, file, /*do_fcnt*/0, /*cnt*/0); ++ si_read_unlock(sb); ++ return err; ++} ++ ++static const struct file_operations dbgaufs_xigen_fop = { ++ .owner = THIS_MODULE, ++ .open = dbgaufs_xigen_open, ++ .release = dbgaufs_xi_release, ++ .read = dbgaufs_xi_read ++}; ++ ++static int dbgaufs_xigen_init(struct au_sbinfo *sbinfo) ++{ ++ int err; ++ ++ /* ++ * This function is a dynamic '__init' function actually, ++ * so the tiny check for si_rwsem is unnecessary. ++ */ ++ /* AuRwMustWriteLock(&sbinfo->si_rwsem); */ ++ ++ err = -EIO; ++ sbinfo->si_dbgaufs_xigen = debugfs_create_file ++ ("xigen", dbgaufs_mode, sbinfo->si_dbgaufs, sbinfo, ++ &dbgaufs_xigen_fop); ++ if (sbinfo->si_dbgaufs_xigen) ++ err = 0; ++ ++ return err; ++} ++#else ++static int dbgaufs_xigen_init(struct au_sbinfo *sbinfo) ++{ ++ return 0; ++} ++#endif /* CONFIG_AUFS_EXPORT */ ++ ++/* ---------------------------------------------------------------------- */ ++ ++void dbgaufs_si_fin(struct au_sbinfo *sbinfo) ++{ ++ /* ++ * This function is a dynamic '__fin' function actually, ++ * so the tiny check for si_rwsem is unnecessary. ++ */ ++ /* AuRwMustWriteLock(&sbinfo->si_rwsem); */ ++ ++ debugfs_remove_recursive(sbinfo->si_dbgaufs); ++ sbinfo->si_dbgaufs = NULL; ++} ++ ++int dbgaufs_si_init(struct au_sbinfo *sbinfo) ++{ ++ int err; ++ char name[SysaufsSiNameLen]; ++ ++ /* ++ * This function is a dynamic '__init' function actually, ++ * so the tiny check for si_rwsem is unnecessary. ++ */ ++ /* AuRwMustWriteLock(&sbinfo->si_rwsem); */ ++ ++ err = -ENOENT; ++ if (!dbgaufs) { ++ AuErr1("/debug/aufs is uninitialized\n"); ++ goto out; ++ } ++ ++ err = -EIO; ++ sysaufs_name(sbinfo, name); ++ sbinfo->si_dbgaufs = debugfs_create_dir(name, dbgaufs); ++ if (unlikely(!sbinfo->si_dbgaufs)) ++ goto out; ++ ++ /* regardless plink/noplink option */ ++ sbinfo->si_dbgaufs_plink = debugfs_create_file ++ ("plink", dbgaufs_mode, sbinfo->si_dbgaufs, sbinfo, ++ &dbgaufs_plink_fop); ++ if (unlikely(!sbinfo->si_dbgaufs_plink)) ++ goto out_dir; ++ ++ /* regardless xino/noxino option */ ++ sbinfo->si_dbgaufs_xib = debugfs_create_file ++ ("xib", dbgaufs_mode, sbinfo->si_dbgaufs, sbinfo, ++ &dbgaufs_xib_fop); ++ if (unlikely(!sbinfo->si_dbgaufs_xib)) ++ goto out_dir; ++ ++ err = dbgaufs_xigen_init(sbinfo); ++ if (!err) ++ goto out; /* success */ ++ ++out_dir: ++ dbgaufs_si_fin(sbinfo); ++out: ++ if (unlikely(err)) ++ pr_err("debugfs/aufs failed\n"); ++ return err; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++void dbgaufs_fin(void) ++{ ++ debugfs_remove(dbgaufs); ++} ++ ++int __init dbgaufs_init(void) ++{ ++ int err; ++ ++ err = -EIO; ++ dbgaufs = debugfs_create_dir(AUFS_NAME, NULL); ++ if (dbgaufs) ++ err = 0; ++ return err; ++} +diff -Naur linux-5.15/fs/aufs/dbgaufs.h aufs5-linux-aufs5.15/fs/aufs/dbgaufs.h +--- linux-5.15/fs/aufs/dbgaufs.h 1970-01-01 03:00:00.000000000 +0300 ++++ aufs5-linux-aufs5.15/fs/aufs/dbgaufs.h 2022-03-07 13:48:09.000000000 +0300 +@@ -0,0 +1,40 @@ ++/* SPDX-License-Identifier: GPL-2.0 */ ++/* ++ * Copyright (C) 2005-2021 Junjiro R. Okajima ++ */ ++ ++/* ++ * debugfs interface ++ */ ++ ++#ifndef __DBGAUFS_H__ ++#define __DBGAUFS_H__ ++ ++#ifdef __KERNEL__ ++ ++struct super_block; ++struct au_sbinfo; ++struct au_branch; ++ ++#ifdef CONFIG_DEBUG_FS ++/* dbgaufs.c */ ++void dbgaufs_xino_del(struct au_branch *br); ++void dbgaufs_brs_del(struct super_block *sb, aufs_bindex_t bindex); ++void dbgaufs_brs_add(struct super_block *sb, aufs_bindex_t bindex, int topdown); ++void dbgaufs_si_fin(struct au_sbinfo *sbinfo); ++int dbgaufs_si_init(struct au_sbinfo *sbinfo); ++void dbgaufs_fin(void); ++int __init dbgaufs_init(void); ++#else ++AuStubVoid(dbgaufs_xino_del, struct au_branch *br) ++AuStubVoid(dbgaufs_brs_del, struct super_block *sb, aufs_bindex_t bindex) ++AuStubVoid(dbgaufs_brs_add, struct super_block *sb, aufs_bindex_t bindex, ++ int topdown) ++AuStubVoid(dbgaufs_si_fin, struct au_sbinfo *sbinfo) ++AuStubInt0(dbgaufs_si_init, struct au_sbinfo *sbinfo) ++AuStubVoid(dbgaufs_fin, void) ++AuStubInt0(__init dbgaufs_init, void) ++#endif /* CONFIG_DEBUG_FS */ ++ ++#endif /* __KERNEL__ */ ++#endif /* __DBGAUFS_H__ */ +diff -Naur linux-5.15/fs/aufs/dcsub.c aufs5-linux-aufs5.15/fs/aufs/dcsub.c +--- linux-5.15/fs/aufs/dcsub.c 1970-01-01 03:00:00.000000000 +0300 ++++ aufs5-linux-aufs5.15/fs/aufs/dcsub.c 2022-03-07 13:48:09.000000000 +0300 +@@ -0,0 +1,212 @@ ++// SPDX-License-Identifier: GPL-2.0 ++/* ++ * Copyright (C) 2005-2021 Junjiro R. Okajima ++ */ ++ ++/* ++ * sub-routines for dentry cache ++ */ ++ ++#include "aufs.h" ++ ++static void au_dpage_free(struct au_dpage *dpage) ++{ ++ int i; ++ struct dentry **p; ++ ++ p = dpage->dentries; ++ for (i = 0; i < dpage->ndentry; i++) ++ dput(*p++); ++ free_page((unsigned long)dpage->dentries); ++} ++ ++int au_dpages_init(struct au_dcsub_pages *dpages, gfp_t gfp) ++{ ++ int err; ++ void *p; ++ ++ err = -ENOMEM; ++ dpages->dpages = kmalloc(sizeof(*dpages->dpages), gfp); ++ if (unlikely(!dpages->dpages)) ++ goto out; ++ ++ p = (void *)__get_free_page(gfp); ++ if (unlikely(!p)) ++ goto out_dpages; ++ ++ dpages->dpages[0].ndentry = 0; ++ dpages->dpages[0].dentries = p; ++ dpages->ndpage = 1; ++ return 0; /* success */ ++ ++out_dpages: ++ au_kfree_try_rcu(dpages->dpages); ++out: ++ return err; ++} ++ ++void au_dpages_free(struct au_dcsub_pages *dpages) ++{ ++ int i; ++ struct au_dpage *p; ++ ++ p = dpages->dpages; ++ for (i = 0; i < dpages->ndpage; i++) ++ au_dpage_free(p++); ++ au_kfree_try_rcu(dpages->dpages); ++} ++ ++static int au_dpages_append(struct au_dcsub_pages *dpages, ++ struct dentry *dentry, gfp_t gfp) ++{ ++ int err, sz; ++ struct au_dpage *dpage; ++ void *p; ++ ++ dpage = dpages->dpages + dpages->ndpage - 1; ++ sz = PAGE_SIZE / sizeof(dentry); ++ if (unlikely(dpage->ndentry >= sz)) { ++ AuLabel(new dpage); ++ err = -ENOMEM; ++ sz = dpages->ndpage * sizeof(*dpages->dpages); ++ p = au_kzrealloc(dpages->dpages, sz, ++ sz + sizeof(*dpages->dpages), gfp, ++ /*may_shrink*/0); ++ if (unlikely(!p)) ++ goto out; ++ ++ dpages->dpages = p; ++ dpage = dpages->dpages + dpages->ndpage; ++ p = (void *)__get_free_page(gfp); ++ if (unlikely(!p)) ++ goto out; ++ ++ dpage->ndentry = 0; ++ dpage->dentries = p; ++ dpages->ndpage++; ++ } ++ ++ AuDebugOn(au_dcount(dentry) <= 0); ++ dpage->dentries[dpage->ndentry++] = dget_dlock(dentry); ++ return 0; /* success */ ++ ++out: ++ return err; ++} ++ ++/* todo: BAD approach */ ++/* copied from linux/fs/dcache.c */ ++enum d_walk_ret { ++ D_WALK_CONTINUE, ++ D_WALK_QUIT, ++ D_WALK_NORETRY, ++ D_WALK_SKIP, ++}; ++ ++extern void d_walk(struct dentry *parent, void *data, ++ enum d_walk_ret (*enter)(void *, struct dentry *)); ++ ++struct ac_dpages_arg { ++ int err; ++ struct au_dcsub_pages *dpages; ++ struct super_block *sb; ++ au_dpages_test test; ++ void *arg; ++}; ++ ++static enum d_walk_ret au_call_dpages_append(void *_arg, struct dentry *dentry) ++{ ++ enum d_walk_ret ret; ++ struct ac_dpages_arg *arg = _arg; ++ ++ ret = D_WALK_CONTINUE; ++ if (dentry->d_sb == arg->sb ++ && !IS_ROOT(dentry) ++ && au_dcount(dentry) > 0 ++ && au_di(dentry) ++ && (!arg->test || arg->test(dentry, arg->arg))) { ++ arg->err = au_dpages_append(arg->dpages, dentry, GFP_ATOMIC); ++ if (unlikely(arg->err)) ++ ret = D_WALK_QUIT; ++ } ++ ++ return ret; ++} ++ ++int au_dcsub_pages(struct au_dcsub_pages *dpages, struct dentry *root, ++ au_dpages_test test, void *arg) ++{ ++ struct ac_dpages_arg args = { ++ .err = 0, ++ .dpages = dpages, ++ .sb = root->d_sb, ++ .test = test, ++ .arg = arg ++ }; ++ ++ d_walk(root, &args, au_call_dpages_append); ++ ++ return args.err; ++} ++ ++int au_dcsub_pages_rev(struct au_dcsub_pages *dpages, struct dentry *dentry, ++ int do_include, au_dpages_test test, void *arg) ++{ ++ int err; ++ ++ err = 0; ++ write_seqlock(&rename_lock); ++ spin_lock(&dentry->d_lock); ++ if (do_include ++ && au_dcount(dentry) > 0 ++ && (!test || test(dentry, arg))) ++ err = au_dpages_append(dpages, dentry, GFP_ATOMIC); ++ spin_unlock(&dentry->d_lock); ++ if (unlikely(err)) ++ goto out; ++ ++ /* ++ * RCU for vfsmount is unnecessary since this is a traverse in a single ++ * mount ++ */ ++ while (!IS_ROOT(dentry)) { ++ dentry = dentry->d_parent; /* rename_lock is locked */ ++ spin_lock(&dentry->d_lock); ++ if (au_dcount(dentry) > 0 ++ && (!test || test(dentry, arg))) ++ err = au_dpages_append(dpages, dentry, GFP_ATOMIC); ++ spin_unlock(&dentry->d_lock); ++ if (unlikely(err)) ++ break; ++ } ++ ++out: ++ write_sequnlock(&rename_lock); ++ return err; ++} ++ ++static inline int au_dcsub_dpages_aufs(struct dentry *dentry, void *arg) ++{ ++ return au_di(dentry) && dentry->d_sb == arg; ++} ++ ++int au_dcsub_pages_rev_aufs(struct au_dcsub_pages *dpages, ++ struct dentry *dentry, int do_include) ++{ ++ return au_dcsub_pages_rev(dpages, dentry, do_include, ++ au_dcsub_dpages_aufs, dentry->d_sb); ++} ++ ++int au_test_subdir(struct dentry *d1, struct dentry *d2) ++{ ++ struct path path[2] = { ++ { ++ .dentry = d1 ++ }, ++ { ++ .dentry = d2 ++ } ++ }; ++ ++ return path_is_under(path + 0, path + 1); ++} +diff -Naur linux-5.15/fs/aufs/dcsub.h aufs5-linux-aufs5.15/fs/aufs/dcsub.h +--- linux-5.15/fs/aufs/dcsub.h 1970-01-01 03:00:00.000000000 +0300 ++++ aufs5-linux-aufs5.15/fs/aufs/dcsub.h 2022-03-07 13:48:09.000000000 +0300 +@@ -0,0 +1,124 @@ ++/* SPDX-License-Identifier: GPL-2.0 */ ++/* ++ * Copyright (C) 2005-2021 Junjiro R. Okajima ++ */ ++ ++/* ++ * sub-routines for dentry cache ++ */ ++ ++#ifndef __AUFS_DCSUB_H__ ++#define __AUFS_DCSUB_H__ ++ ++#ifdef __KERNEL__ ++ ++#include ++#include ++ ++struct au_dpage { ++ int ndentry; ++ struct dentry **dentries; ++}; ++ ++struct au_dcsub_pages { ++ int ndpage; ++ struct au_dpage *dpages; ++}; ++ ++/* ---------------------------------------------------------------------- */ ++ ++/* dcsub.c */ ++int au_dpages_init(struct au_dcsub_pages *dpages, gfp_t gfp); ++void au_dpages_free(struct au_dcsub_pages *dpages); ++typedef int (*au_dpages_test)(struct dentry *dentry, void *arg); ++int au_dcsub_pages(struct au_dcsub_pages *dpages, struct dentry *root, ++ au_dpages_test test, void *arg); ++int au_dcsub_pages_rev(struct au_dcsub_pages *dpages, struct dentry *dentry, ++ int do_include, au_dpages_test test, void *arg); ++int au_dcsub_pages_rev_aufs(struct au_dcsub_pages *dpages, ++ struct dentry *dentry, int do_include); ++int au_test_subdir(struct dentry *d1, struct dentry *d2); ++ ++/* ---------------------------------------------------------------------- */ ++ ++/* ++ * todo: in linux-3.13, several similar (but faster) helpers are added to ++ * include/linux/dcache.h. Try them (in the future). ++ */ ++ ++static inline int au_d_hashed_positive(struct dentry *d) ++{ ++ int err; ++ struct inode *inode = d_inode(d); ++ ++ err = 0; ++ if (unlikely(d_unhashed(d) ++ || d_is_negative(d) ++ || !inode->i_nlink)) ++ err = -ENOENT; ++ return err; ++} ++ ++static inline int au_d_linkable(struct dentry *d) ++{ ++ int err; ++ struct inode *inode = d_inode(d); ++ ++ err = au_d_hashed_positive(d); ++ if (err ++ && d_is_positive(d) ++ && (inode->i_state & I_LINKABLE)) ++ err = 0; ++ return err; ++} ++ ++static inline int au_d_alive(struct dentry *d) ++{ ++ int err; ++ struct inode *inode; ++ ++ err = 0; ++ if (!IS_ROOT(d)) ++ err = au_d_hashed_positive(d); ++ else { ++ inode = d_inode(d); ++ if (unlikely(d_unlinked(d) ++ || d_is_negative(d) ++ || !inode->i_nlink)) ++ err = -ENOENT; ++ } ++ return err; ++} ++ ++static inline int au_alive_dir(struct dentry *d) ++{ ++ int err; ++ ++ err = au_d_alive(d); ++ if (unlikely(err || IS_DEADDIR(d_inode(d)))) ++ err = -ENOENT; ++ return err; ++} ++ ++static inline int au_qstreq(struct qstr *a, struct qstr *b) ++{ ++ return a->len == b->len ++ && !memcmp(a->name, b->name, a->len); ++} ++ ++/* ++ * by the commit ++ * 360f547 2015-01-25 dcache: let the dentry count go down to zero without ++ * taking d_lock ++ * the type of d_lockref.count became int, but the inlined function d_count() ++ * still returns unsigned int. ++ * I don't know why. Maybe it is for every d_count() users? ++ * Anyway au_dcount() lives on. ++ */ ++static inline int au_dcount(struct dentry *d) ++{ ++ return (int)d_count(d); ++} ++ ++#endif /* __KERNEL__ */ ++#endif /* __AUFS_DCSUB_H__ */ +diff -Naur linux-5.15/fs/aufs/debug.c aufs5-linux-aufs5.15/fs/aufs/debug.c +--- linux-5.15/fs/aufs/debug.c 1970-01-01 03:00:00.000000000 +0300 ++++ aufs5-linux-aufs5.15/fs/aufs/debug.c 2022-03-07 13:48:09.000000000 +0300 +@@ -0,0 +1,431 @@ ++// SPDX-License-Identifier: GPL-2.0 ++/* ++ * Copyright (C) 2005-2021 Junjiro R. Okajima ++ */ ++ ++/* ++ * debug print functions ++ */ ++ ++#include ++#include "aufs.h" ++ ++/* Returns 0, or -errno. arg is in kp->arg. */ ++static int param_atomic_t_set(const char *val, const struct kernel_param *kp) ++{ ++ int err, n; ++ ++ err = kstrtoint(val, 0, &n); ++ if (!err) { ++ if (n > 0) ++ au_debug_on(); ++ else ++ au_debug_off(); ++ } ++ return err; ++} ++ ++/* Returns length written or -errno. Buffer is 4k (ie. be short!) */ ++static int param_atomic_t_get(char *buffer, const struct kernel_param *kp) ++{ ++ atomic_t *a; ++ ++ a = kp->arg; ++ return sprintf(buffer, "%d", atomic_read(a)); ++} ++ ++static struct kernel_param_ops param_ops_atomic_t = { ++ .set = param_atomic_t_set, ++ .get = param_atomic_t_get ++ /* void (*free)(void *arg) */ ++}; ++ ++atomic_t aufs_debug = ATOMIC_INIT(0); ++MODULE_PARM_DESC(debug, "debug print"); ++module_param_named(debug, aufs_debug, atomic_t, 0664); ++ ++DEFINE_MUTEX(au_dbg_mtx); /* just to serialize the dbg msgs */ ++char *au_plevel = KERN_DEBUG; ++#define dpri(fmt, ...) do { \ ++ if ((au_plevel \ ++ && strcmp(au_plevel, KERN_DEBUG)) \ ++ || au_debug_test()) \ ++ printk("%s" fmt, au_plevel, ##__VA_ARGS__); \ ++} while (0) ++ ++/* ---------------------------------------------------------------------- */ ++ ++void au_dpri_whlist(struct au_nhash *whlist) ++{ ++ unsigned long ul, n; ++ struct hlist_head *head; ++ struct au_vdir_wh *pos; ++ ++ n = whlist->nh_num; ++ head = whlist->nh_head; ++ for (ul = 0; ul < n; ul++) { ++ hlist_for_each_entry(pos, head, wh_hash) ++ dpri("b%d, %.*s, %d\n", ++ pos->wh_bindex, ++ pos->wh_str.len, pos->wh_str.name, ++ pos->wh_str.len); ++ head++; ++ } ++} ++ ++void au_dpri_vdir(struct au_vdir *vdir) ++{ ++ unsigned long ul; ++ union au_vdir_deblk_p p; ++ unsigned char *o; ++ ++ if (!vdir || IS_ERR(vdir)) { ++ dpri("err %ld\n", PTR_ERR(vdir)); ++ return; ++ } ++ ++ dpri("deblk %u, nblk %lu, deblk %p, last{%lu, %p}, ver %llu\n", ++ vdir->vd_deblk_sz, vdir->vd_nblk, vdir->vd_deblk, ++ vdir->vd_last.ul, vdir->vd_last.p.deblk, vdir->vd_version); ++ for (ul = 0; ul < vdir->vd_nblk; ul++) { ++ p.deblk = vdir->vd_deblk[ul]; ++ o = p.deblk; ++ dpri("[%lu]: %p\n", ul, o); ++ } ++} ++ ++static int do_pri_inode(aufs_bindex_t bindex, struct inode *inode, int hn, ++ struct dentry *wh) ++{ ++ char *n = NULL; ++ int l = 0; ++ ++ if (!inode || IS_ERR(inode)) { ++ dpri("i%d: err %ld\n", bindex, PTR_ERR(inode)); ++ return -1; ++ } ++ ++ /* the type of i_blocks depends upon CONFIG_LBDAF */ ++ BUILD_BUG_ON(sizeof(inode->i_blocks) != sizeof(unsigned long) ++ && sizeof(inode->i_blocks) != sizeof(u64)); ++ if (wh) { ++ n = (void *)wh->d_name.name; ++ l = wh->d_name.len; ++ } ++ ++ dpri("i%d: %p, i%lu, %s, cnt %d, nl %u, 0%o, sz %llu, blk %llu," ++ " hn %d, ct %lld, np %lu, st 0x%lx, f 0x%x, v %llu, g %x%s%.*s\n", ++ bindex, inode, ++ inode->i_ino, inode->i_sb ? au_sbtype(inode->i_sb) : "??", ++ atomic_read(&inode->i_count), inode->i_nlink, inode->i_mode, ++ i_size_read(inode), (unsigned long long)inode->i_blocks, ++ hn, (long long)timespec64_to_ns(&inode->i_ctime) & 0x0ffff, ++ inode->i_mapping ? inode->i_mapping->nrpages : 0, ++ inode->i_state, inode->i_flags, inode_peek_iversion(inode), ++ inode->i_generation, ++ l ? ", wh " : "", l, n); ++ return 0; ++} ++ ++void au_dpri_inode(struct inode *inode) ++{ ++ struct au_iinfo *iinfo; ++ struct au_hinode *hi; ++ aufs_bindex_t bindex; ++ int err, hn; ++ ++ err = do_pri_inode(-1, inode, -1, NULL); ++ if (err || !au_test_aufs(inode->i_sb) || au_is_bad_inode(inode)) ++ return; ++ ++ iinfo = au_ii(inode); ++ dpri("i-1: btop %d, bbot %d, gen %d\n", ++ iinfo->ii_btop, iinfo->ii_bbot, au_iigen(inode, NULL)); ++ if (iinfo->ii_btop < 0) ++ return; ++ hn = 0; ++ for (bindex = iinfo->ii_btop; bindex <= iinfo->ii_bbot; bindex++) { ++ hi = au_hinode(iinfo, bindex); ++ hn = !!au_hn(hi); ++ do_pri_inode(bindex, hi->hi_inode, hn, hi->hi_whdentry); ++ } ++} ++ ++void au_dpri_dalias(struct inode *inode) ++{ ++ struct dentry *d; ++ ++ spin_lock(&inode->i_lock); ++ hlist_for_each_entry(d, &inode->i_dentry, d_u.d_alias) ++ au_dpri_dentry(d); ++ spin_unlock(&inode->i_lock); ++} ++ ++static int do_pri_dentry(aufs_bindex_t bindex, struct dentry *dentry) ++{ ++ struct dentry *wh = NULL; ++ int hn; ++ struct inode *inode; ++ struct au_iinfo *iinfo; ++ struct au_hinode *hi; ++ ++ if (!dentry || IS_ERR(dentry)) { ++ dpri("d%d: err %ld\n", bindex, PTR_ERR(dentry)); ++ return -1; ++ } ++ /* do not call dget_parent() here */ ++ /* note: access d_xxx without d_lock */ ++ dpri("d%d: %p, %pd2?, %s, cnt %d, flags 0x%x, %shashed\n", ++ bindex, dentry, dentry, ++ dentry->d_sb ? au_sbtype(dentry->d_sb) : "??", ++ au_dcount(dentry), dentry->d_flags, ++ d_unhashed(dentry) ? "un" : ""); ++ hn = -1; ++ inode = NULL; ++ if (d_is_positive(dentry)) ++ inode = d_inode(dentry); ++ if (inode ++ && au_test_aufs(dentry->d_sb) ++ && bindex >= 0 ++ && !au_is_bad_inode(inode)) { ++ iinfo = au_ii(inode); ++ hi = au_hinode(iinfo, bindex); ++ hn = !!au_hn(hi); ++ wh = hi->hi_whdentry; ++ } ++ do_pri_inode(bindex, inode, hn, wh); ++ return 0; ++} ++ ++void au_dpri_dentry(struct dentry *dentry) ++{ ++ struct au_dinfo *dinfo; ++ aufs_bindex_t bindex; ++ int err; ++ ++ err = do_pri_dentry(-1, dentry); ++ if (err || !au_test_aufs(dentry->d_sb)) ++ return; ++ ++ dinfo = au_di(dentry); ++ if (!dinfo) ++ return; ++ dpri("d-1: btop %d, bbot %d, bwh %d, bdiropq %d, gen %d, tmp %d\n", ++ dinfo->di_btop, dinfo->di_bbot, ++ dinfo->di_bwh, dinfo->di_bdiropq, au_digen(dentry), ++ dinfo->di_tmpfile); ++ if (dinfo->di_btop < 0) ++ return; ++ for (bindex = dinfo->di_btop; bindex <= dinfo->di_bbot; bindex++) ++ do_pri_dentry(bindex, au_hdentry(dinfo, bindex)->hd_dentry); ++} ++ ++static int do_pri_file(aufs_bindex_t bindex, struct file *file) ++{ ++ char a[32]; ++ ++ if (!file || IS_ERR(file)) { ++ dpri("f%d: err %ld\n", bindex, PTR_ERR(file)); ++ return -1; ++ } ++ a[0] = 0; ++ if (bindex < 0 ++ && !IS_ERR_OR_NULL(file->f_path.dentry) ++ && au_test_aufs(file->f_path.dentry->d_sb) ++ && au_fi(file)) ++ snprintf(a, sizeof(a), ", gen %d, mmapped %d", ++ au_figen(file), atomic_read(&au_fi(file)->fi_mmapped)); ++ dpri("f%d: mode 0x%x, flags 0%o, cnt %ld, v %llu, pos %llu%s\n", ++ bindex, file->f_mode, file->f_flags, (long)file_count(file), ++ file->f_version, file->f_pos, a); ++ if (!IS_ERR_OR_NULL(file->f_path.dentry)) ++ do_pri_dentry(bindex, file->f_path.dentry); ++ return 0; ++} ++ ++void au_dpri_file(struct file *file) ++{ ++ struct au_finfo *finfo; ++ struct au_fidir *fidir; ++ struct au_hfile *hfile; ++ aufs_bindex_t bindex; ++ int err; ++ ++ err = do_pri_file(-1, file); ++ if (err ++ || IS_ERR_OR_NULL(file->f_path.dentry) ++ || !au_test_aufs(file->f_path.dentry->d_sb)) ++ return; ++ ++ finfo = au_fi(file); ++ if (!finfo) ++ return; ++ if (finfo->fi_btop < 0) ++ return; ++ fidir = finfo->fi_hdir; ++ if (!fidir) ++ do_pri_file(finfo->fi_btop, finfo->fi_htop.hf_file); ++ else ++ for (bindex = finfo->fi_btop; ++ bindex >= 0 && bindex <= fidir->fd_bbot; ++ bindex++) { ++ hfile = fidir->fd_hfile + bindex; ++ do_pri_file(bindex, hfile ? hfile->hf_file : NULL); ++ } ++} ++ ++static int do_pri_br(aufs_bindex_t bindex, struct au_branch *br) ++{ ++ struct vfsmount *mnt; ++ struct super_block *sb; ++ ++ if (!br || IS_ERR(br)) ++ goto out; ++ mnt = au_br_mnt(br); ++ if (!mnt || IS_ERR(mnt)) ++ goto out; ++ sb = mnt->mnt_sb; ++ if (!sb || IS_ERR(sb)) ++ goto out; ++ ++ dpri("s%d: {perm 0x%x, id %d, wbr %p}, " ++ "%s, dev 0x%02x%02x, flags 0x%lx, cnt %d, active %d, " ++ "xino %d\n", ++ bindex, br->br_perm, br->br_id, br->br_wbr, ++ au_sbtype(sb), MAJOR(sb->s_dev), MINOR(sb->s_dev), ++ sb->s_flags, sb->s_count, ++ atomic_read(&sb->s_active), ++ !!au_xino_file(br->br_xino, /*idx*/-1)); ++ return 0; ++ ++out: ++ dpri("s%d: err %ld\n", bindex, PTR_ERR(br)); ++ return -1; ++} ++ ++void au_dpri_sb(struct super_block *sb) ++{ ++ struct au_sbinfo *sbinfo; ++ aufs_bindex_t bindex; ++ int err; ++ /* to reduce stack size */ ++ struct { ++ struct vfsmount mnt; ++ struct au_branch fake; ++ } *a; ++ ++ /* this function can be called from magic sysrq */ ++ a = kzalloc(sizeof(*a), GFP_ATOMIC); ++ if (unlikely(!a)) { ++ dpri("no memory\n"); ++ return; ++ } ++ ++ a->mnt.mnt_sb = sb; ++ a->fake.br_path.mnt = &a->mnt; ++ err = do_pri_br(-1, &a->fake); ++ au_kfree_rcu(a); ++ dpri("dev 0x%x\n", sb->s_dev); ++ if (err || !au_test_aufs(sb)) ++ return; ++ ++ sbinfo = au_sbi(sb); ++ if (!sbinfo) ++ return; ++ dpri("nw %d, gen %u, kobj %d\n", ++ atomic_read(&sbinfo->si_nowait.nw_len), sbinfo->si_generation, ++ kref_read(&sbinfo->si_kobj.kref)); ++ for (bindex = 0; bindex <= sbinfo->si_bbot; bindex++) ++ do_pri_br(bindex, sbinfo->si_branch[0 + bindex]); ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++void __au_dbg_verify_dinode(struct dentry *dentry, const char *func, int line) ++{ ++ struct inode *h_inode, *inode = d_inode(dentry); ++ struct dentry *h_dentry; ++ aufs_bindex_t bindex, bbot, bi; ++ ++ if (!inode /* || au_di(dentry)->di_lsc == AuLsc_DI_TMP */) ++ return; ++ ++ bbot = au_dbbot(dentry); ++ bi = au_ibbot(inode); ++ if (bi < bbot) ++ bbot = bi; ++ bindex = au_dbtop(dentry); ++ bi = au_ibtop(inode); ++ if (bi > bindex) ++ bindex = bi; ++ ++ for (; bindex <= bbot; bindex++) { ++ h_dentry = au_h_dptr(dentry, bindex); ++ if (!h_dentry) ++ continue; ++ h_inode = au_h_iptr(inode, bindex); ++ if (unlikely(h_inode != d_inode(h_dentry))) { ++ au_debug_on(); ++ AuDbg("b%d, %s:%d\n", bindex, func, line); ++ AuDbgDentry(dentry); ++ AuDbgInode(inode); ++ au_debug_off(); ++ if (au_test_fuse(h_inode->i_sb)) ++ WARN_ON_ONCE(1); ++ else ++ BUG(); ++ } ++ } ++} ++ ++void au_dbg_verify_gen(struct dentry *parent, unsigned int sigen) ++{ ++ int err, i, j; ++ struct au_dcsub_pages dpages; ++ struct au_dpage *dpage; ++ struct dentry **dentries; ++ ++ err = au_dpages_init(&dpages, GFP_NOFS); ++ AuDebugOn(err); ++ err = au_dcsub_pages_rev_aufs(&dpages, parent, /*do_include*/1); ++ AuDebugOn(err); ++ for (i = dpages.ndpage - 1; !err && i >= 0; i--) { ++ dpage = dpages.dpages + i; ++ dentries = dpage->dentries; ++ for (j = dpage->ndentry - 1; !err && j >= 0; j--) ++ AuDebugOn(au_digen_test(dentries[j], sigen)); ++ } ++ au_dpages_free(&dpages); ++} ++ ++void au_dbg_verify_kthread(void) ++{ ++ if (au_wkq_test()) { ++ au_dbg_blocked(); ++ /* ++ * It may be recursive, but udba=notify between two aufs mounts, ++ * where a single ro branch is shared, is not a problem. ++ */ ++ /* WARN_ON(1); */ ++ } ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++int __init au_debug_init(void) ++{ ++ aufs_bindex_t bindex; ++ struct au_vdir_destr destr; ++ ++ bindex = -1; ++ AuDebugOn(bindex >= 0); ++ ++ destr.len = -1; ++ AuDebugOn(destr.len < NAME_MAX); ++ ++#ifdef CONFIG_4KSTACKS ++ pr_warn("CONFIG_4KSTACKS is defined.\n"); ++#endif ++ ++ return 0; ++} +diff -Naur linux-5.15/fs/aufs/debug.h aufs5-linux-aufs5.15/fs/aufs/debug.h +--- linux-5.15/fs/aufs/debug.h 1970-01-01 03:00:00.000000000 +0300 ++++ aufs5-linux-aufs5.15/fs/aufs/debug.h 2022-03-07 13:48:09.000000000 +0300 +@@ -0,0 +1,213 @@ ++/* SPDX-License-Identifier: GPL-2.0 */ ++/* ++ * Copyright (C) 2005-2021 Junjiro R. Okajima ++ */ ++ ++/* ++ * debug print functions ++ */ ++ ++#ifndef __AUFS_DEBUG_H__ ++#define __AUFS_DEBUG_H__ ++ ++#ifdef __KERNEL__ ++ ++#include ++#include ++#include ++#include ++ ++#ifdef CONFIG_AUFS_DEBUG ++#define AuDebugOn(a) BUG_ON(a) ++ ++/* module parameter */ ++extern atomic_t aufs_debug; ++static inline void au_debug_on(void) ++{ ++ atomic_inc(&aufs_debug); ++} ++static inline void au_debug_off(void) ++{ ++ atomic_dec_if_positive(&aufs_debug); ++} ++ ++static inline int au_debug_test(void) ++{ ++ return atomic_read(&aufs_debug) > 0; ++} ++#else ++#define AuDebugOn(a) do {} while (0) ++AuStubVoid(au_debug_on, void) ++AuStubVoid(au_debug_off, void) ++AuStubInt0(au_debug_test, void) ++#endif /* CONFIG_AUFS_DEBUG */ ++ ++#define param_check_atomic_t(name, p) __param_check(name, p, atomic_t) ++ ++/* ---------------------------------------------------------------------- */ ++ ++/* debug print */ ++ ++#define AuDbg(fmt, ...) do { \ ++ if (au_debug_test()) \ ++ pr_debug("DEBUG: " fmt, ##__VA_ARGS__); \ ++} while (0) ++#define AuLabel(l) AuDbg(#l "\n") ++#define AuIOErr(fmt, ...) pr_err("I/O Error, " fmt, ##__VA_ARGS__) ++#define AuWarn1(fmt, ...) do { \ ++ static unsigned char _c; \ ++ if (!_c++) \ ++ pr_warn(fmt, ##__VA_ARGS__); \ ++} while (0) ++ ++#define AuErr1(fmt, ...) do { \ ++ static unsigned char _c; \ ++ if (!_c++) \ ++ pr_err(fmt, ##__VA_ARGS__); \ ++} while (0) ++ ++#define AuIOErr1(fmt, ...) do { \ ++ static unsigned char _c; \ ++ if (!_c++) \ ++ AuIOErr(fmt, ##__VA_ARGS__); \ ++} while (0) ++ ++#define AuUnsupportMsg "This operation is not supported." \ ++ " Please report this application to aufs-users ML." ++#define AuUnsupport(fmt, ...) do { \ ++ pr_err(AuUnsupportMsg "\n" fmt, ##__VA_ARGS__); \ ++ dump_stack(); \ ++} while (0) ++ ++#define AuTraceErr(e) do { \ ++ if (unlikely((e) < 0)) \ ++ AuDbg("err %d\n", (int)(e)); \ ++} while (0) ++ ++#define AuTraceErrPtr(p) do { \ ++ if (IS_ERR(p)) \ ++ AuDbg("err %ld\n", PTR_ERR(p)); \ ++} while (0) ++ ++/* dirty macros for debug print, use with "%.*s" and caution */ ++#define AuLNPair(qstr) (qstr)->len, (qstr)->name ++ ++/* ---------------------------------------------------------------------- */ ++ ++struct dentry; ++#ifdef CONFIG_AUFS_DEBUG ++extern struct mutex au_dbg_mtx; ++extern char *au_plevel; ++struct au_nhash; ++void au_dpri_whlist(struct au_nhash *whlist); ++struct au_vdir; ++void au_dpri_vdir(struct au_vdir *vdir); ++struct inode; ++void au_dpri_inode(struct inode *inode); ++void au_dpri_dalias(struct inode *inode); ++void au_dpri_dentry(struct dentry *dentry); ++struct file; ++void au_dpri_file(struct file *filp); ++struct super_block; ++void au_dpri_sb(struct super_block *sb); ++ ++#define au_dbg_verify_dinode(d) __au_dbg_verify_dinode(d, __func__, __LINE__) ++void __au_dbg_verify_dinode(struct dentry *dentry, const char *func, int line); ++void au_dbg_verify_gen(struct dentry *parent, unsigned int sigen); ++void au_dbg_verify_kthread(void); ++ ++int __init au_debug_init(void); ++ ++#define AuDbgWhlist(w) do { \ ++ mutex_lock(&au_dbg_mtx); \ ++ AuDbg(#w "\n"); \ ++ au_dpri_whlist(w); \ ++ mutex_unlock(&au_dbg_mtx); \ ++} while (0) ++ ++#define AuDbgVdir(v) do { \ ++ mutex_lock(&au_dbg_mtx); \ ++ AuDbg(#v "\n"); \ ++ au_dpri_vdir(v); \ ++ mutex_unlock(&au_dbg_mtx); \ ++} while (0) ++ ++#define AuDbgInode(i) do { \ ++ mutex_lock(&au_dbg_mtx); \ ++ AuDbg(#i "\n"); \ ++ au_dpri_inode(i); \ ++ mutex_unlock(&au_dbg_mtx); \ ++} while (0) ++ ++#define AuDbgDAlias(i) do { \ ++ mutex_lock(&au_dbg_mtx); \ ++ AuDbg(#i "\n"); \ ++ au_dpri_dalias(i); \ ++ mutex_unlock(&au_dbg_mtx); \ ++} while (0) ++ ++#define AuDbgDentry(d) do { \ ++ mutex_lock(&au_dbg_mtx); \ ++ AuDbg(#d "\n"); \ ++ au_dpri_dentry(d); \ ++ mutex_unlock(&au_dbg_mtx); \ ++} while (0) ++ ++#define AuDbgFile(f) do { \ ++ mutex_lock(&au_dbg_mtx); \ ++ AuDbg(#f "\n"); \ ++ au_dpri_file(f); \ ++ mutex_unlock(&au_dbg_mtx); \ ++} while (0) ++ ++#define AuDbgSb(sb) do { \ ++ mutex_lock(&au_dbg_mtx); \ ++ AuDbg(#sb "\n"); \ ++ au_dpri_sb(sb); \ ++ mutex_unlock(&au_dbg_mtx); \ ++} while (0) ++ ++#define AuDbgSym(addr) do { \ ++ char sym[KSYM_SYMBOL_LEN]; \ ++ sprint_symbol(sym, (unsigned long)addr); \ ++ AuDbg("%s\n", sym); \ ++} while (0) ++#else ++AuStubVoid(au_dbg_verify_dinode, struct dentry *dentry) ++AuStubVoid(au_dbg_verify_gen, struct dentry *parent, unsigned int sigen) ++AuStubVoid(au_dbg_verify_kthread, void) ++AuStubInt0(__init au_debug_init, void) ++ ++#define AuDbgWhlist(w) do {} while (0) ++#define AuDbgVdir(v) do {} while (0) ++#define AuDbgInode(i) do {} while (0) ++#define AuDbgDAlias(i) do {} while (0) ++#define AuDbgDentry(d) do {} while (0) ++#define AuDbgFile(f) do {} while (0) ++#define AuDbgSb(sb) do {} while (0) ++#define AuDbgSym(addr) do {} while (0) ++#endif /* CONFIG_AUFS_DEBUG */ ++ ++/* ---------------------------------------------------------------------- */ ++ ++#ifdef CONFIG_AUFS_MAGIC_SYSRQ ++int __init au_sysrq_init(void); ++void au_sysrq_fin(void); ++ ++#ifdef CONFIG_HW_CONSOLE ++#define au_dbg_blocked() do { \ ++ WARN_ON(1); \ ++ handle_sysrq('w'); \ ++} while (0) ++#else ++AuStubVoid(au_dbg_blocked, void) ++#endif ++ ++#else ++AuStubInt0(__init au_sysrq_init, void) ++AuStubVoid(au_sysrq_fin, void) ++AuStubVoid(au_dbg_blocked, void) ++#endif /* CONFIG_AUFS_MAGIC_SYSRQ */ ++ ++#endif /* __KERNEL__ */ ++#endif /* __AUFS_DEBUG_H__ */ +diff -Naur linux-5.15/fs/aufs/dentry.c aufs5-linux-aufs5.15/fs/aufs/dentry.c +--- linux-5.15/fs/aufs/dentry.c 1970-01-01 03:00:00.000000000 +0300 ++++ aufs5-linux-aufs5.15/fs/aufs/dentry.c 2022-03-07 13:48:09.000000000 +0300 +@@ -0,0 +1,1155 @@ ++// SPDX-License-Identifier: GPL-2.0 ++/* ++ * Copyright (C) 2005-2021 Junjiro R. Okajima ++ */ ++ ++/* ++ * lookup and dentry operations ++ */ ++ ++#include ++#include "aufs.h" ++ ++/* ++ * returns positive/negative dentry, NULL or an error. ++ * NULL means whiteout-ed or not-found. ++ */ ++static struct dentry* ++au_do_lookup(struct dentry *h_parent, struct dentry *dentry, ++ aufs_bindex_t bindex, struct au_do_lookup_args *args) ++{ ++ struct dentry *h_dentry; ++ struct inode *h_inode; ++ struct au_branch *br; ++ struct user_namespace *h_userns; ++ struct path h_path; ++ int wh_found, opq; ++ unsigned char wh_able; ++ const unsigned char allow_neg = !!au_ftest_lkup(args->flags, ALLOW_NEG); ++ const unsigned char ignore_perm = !!au_ftest_lkup(args->flags, ++ IGNORE_PERM); ++ ++ wh_found = 0; ++ br = au_sbr(dentry->d_sb, bindex); ++ h_path.dentry = h_parent; ++ h_path.mnt = au_br_mnt(br); ++ h_userns = au_br_userns(br); ++ wh_able = !!au_br_whable(br->br_perm); ++ if (wh_able) ++ wh_found = au_wh_test(h_userns, &h_path, &args->whname, ++ ignore_perm); ++ h_dentry = ERR_PTR(wh_found); ++ if (!wh_found) ++ goto real_lookup; ++ if (unlikely(wh_found < 0)) ++ goto out; ++ ++ /* We found a whiteout */ ++ /* au_set_dbbot(dentry, bindex); */ ++ au_set_dbwh(dentry, bindex); ++ if (!allow_neg) ++ return NULL; /* success */ ++ ++real_lookup: ++ if (!ignore_perm) ++ h_dentry = vfsub_lkup_one(args->name, &h_path); ++ else ++ h_dentry = au_sio_lkup_one(h_userns, args->name, &h_path); ++ if (IS_ERR(h_dentry)) { ++ if (PTR_ERR(h_dentry) == -ENAMETOOLONG ++ && !allow_neg) ++ h_dentry = NULL; ++ goto out; ++ } ++ ++ h_inode = d_inode(h_dentry); ++ if (d_is_negative(h_dentry)) { ++ if (!allow_neg) ++ goto out_neg; ++ } else if (wh_found ++ || (args->type && args->type != (h_inode->i_mode & S_IFMT))) ++ goto out_neg; ++ else if (au_ftest_lkup(args->flags, DIRREN) ++ /* && h_inode */ ++ && !au_dr_lkup_h_ino(args, bindex, h_inode->i_ino)) { ++ AuDbg("b%d %pd ignored hi%llu\n", bindex, h_dentry, ++ (unsigned long long)h_inode->i_ino); ++ goto out_neg; ++ } ++ ++ if (au_dbbot(dentry) <= bindex) ++ au_set_dbbot(dentry, bindex); ++ if (au_dbtop(dentry) < 0 || bindex < au_dbtop(dentry)) ++ au_set_dbtop(dentry, bindex); ++ au_set_h_dptr(dentry, bindex, h_dentry); ++ ++ if (!d_is_dir(h_dentry) ++ || !wh_able ++ || (d_really_is_positive(dentry) && !d_is_dir(dentry))) ++ goto out; /* success */ ++ ++ h_path.dentry = h_dentry; ++ inode_lock_shared_nested(h_inode, AuLsc_I_CHILD); ++ opq = au_diropq_test(h_userns, &h_path); ++ inode_unlock_shared(h_inode); ++ if (opq > 0) ++ au_set_dbdiropq(dentry, bindex); ++ else if (unlikely(opq < 0)) { ++ au_set_h_dptr(dentry, bindex, NULL); ++ h_dentry = ERR_PTR(opq); ++ } ++ goto out; ++ ++out_neg: ++ dput(h_dentry); ++ h_dentry = NULL; ++out: ++ return h_dentry; ++} ++ ++static int au_test_shwh(struct super_block *sb, const struct qstr *name) ++{ ++ if (unlikely(!au_opt_test(au_mntflags(sb), SHWH) ++ && !strncmp(name->name, AUFS_WH_PFX, AUFS_WH_PFX_LEN))) ++ return -EPERM; ++ return 0; ++} ++ ++/* ++ * returns the number of lower positive dentries, ++ * otherwise an error. ++ * can be called at unlinking with @type is zero. ++ */ ++int au_lkup_dentry(struct dentry *dentry, aufs_bindex_t btop, ++ unsigned int flags) ++{ ++ int npositive, err; ++ aufs_bindex_t bindex, btail, bdiropq; ++ unsigned char isdir, dirperm1, dirren; ++ struct au_do_lookup_args args = { ++ .flags = flags, ++ .name = &dentry->d_name ++ }; ++ struct dentry *parent; ++ struct super_block *sb; ++ ++ sb = dentry->d_sb; ++ err = au_test_shwh(sb, args.name); ++ if (unlikely(err)) ++ goto out; ++ ++ err = au_wh_name_alloc(&args.whname, args.name); ++ if (unlikely(err)) ++ goto out; ++ ++ isdir = !!d_is_dir(dentry); ++ dirperm1 = !!au_opt_test(au_mntflags(sb), DIRPERM1); ++ dirren = !!au_opt_test(au_mntflags(sb), DIRREN); ++ if (dirren) ++ au_fset_lkup(args.flags, DIRREN); ++ ++ npositive = 0; ++ parent = dget_parent(dentry); ++ btail = au_dbtaildir(parent); ++ for (bindex = btop; bindex <= btail; bindex++) { ++ struct dentry *h_parent, *h_dentry; ++ struct inode *h_inode, *h_dir; ++ struct au_branch *br; ++ ++ h_dentry = au_h_dptr(dentry, bindex); ++ if (h_dentry) { ++ if (d_is_positive(h_dentry)) ++ npositive++; ++ break; ++ } ++ h_parent = au_h_dptr(parent, bindex); ++ if (!h_parent || !d_is_dir(h_parent)) ++ continue; ++ ++ if (dirren) { ++ /* if the inum matches, then use the prepared name */ ++ err = au_dr_lkup_name(&args, bindex); ++ if (unlikely(err)) ++ goto out_parent; ++ } ++ ++ h_dir = d_inode(h_parent); ++ inode_lock_shared_nested(h_dir, AuLsc_I_PARENT); ++ h_dentry = au_do_lookup(h_parent, dentry, bindex, &args); ++ inode_unlock_shared(h_dir); ++ err = PTR_ERR(h_dentry); ++ if (IS_ERR(h_dentry)) ++ goto out_parent; ++ if (h_dentry) ++ au_fclr_lkup(args.flags, ALLOW_NEG); ++ if (dirperm1) ++ au_fset_lkup(args.flags, IGNORE_PERM); ++ ++ if (au_dbwh(dentry) == bindex) ++ break; ++ if (!h_dentry) ++ continue; ++ if (d_is_negative(h_dentry)) ++ continue; ++ h_inode = d_inode(h_dentry); ++ npositive++; ++ if (!args.type) ++ args.type = h_inode->i_mode & S_IFMT; ++ if (args.type != S_IFDIR) ++ break; ++ else if (isdir) { ++ /* the type of lower may be different */ ++ bdiropq = au_dbdiropq(dentry); ++ if (bdiropq >= 0 && bdiropq <= bindex) ++ break; ++ } ++ br = au_sbr(sb, bindex); ++ if (dirren ++ && au_dr_hino_test_add(&br->br_dirren, h_inode->i_ino, ++ /*add_ent*/NULL)) { ++ /* prepare next name to lookup */ ++ err = au_dr_lkup(&args, dentry, bindex); ++ if (unlikely(err)) ++ goto out_parent; ++ } ++ } ++ ++ if (npositive) { ++ AuLabel(positive); ++ au_update_dbtop(dentry); ++ } ++ err = npositive; ++ if (unlikely(!au_opt_test(au_mntflags(sb), UDBA_NONE) ++ && au_dbtop(dentry) < 0)) { ++ err = -EIO; ++ AuIOErr("both of real entry and whiteout found, %pd, err %d\n", ++ dentry, err); ++ } ++ ++out_parent: ++ dput(parent); ++ au_kfree_try_rcu(args.whname.name); ++ if (dirren) ++ au_dr_lkup_fin(&args); ++out: ++ return err; ++} ++ ++struct dentry *au_sio_lkup_one(struct user_namespace *userns, struct qstr *name, ++ struct path *ppath) ++{ ++ struct dentry *dentry; ++ int wkq_err; ++ ++ if (!au_test_h_perm_sio(userns, d_inode(ppath->dentry), MAY_EXEC)) ++ dentry = vfsub_lkup_one(name, ppath); ++ else { ++ struct vfsub_lkup_one_args args = { ++ .errp = &dentry, ++ .name = name, ++ .ppath = ppath ++ }; ++ ++ wkq_err = au_wkq_wait(vfsub_call_lkup_one, &args); ++ if (unlikely(wkq_err)) ++ dentry = ERR_PTR(wkq_err); ++ } ++ ++ return dentry; ++} ++ ++/* ++ * lookup @dentry on @bindex which should be negative. ++ */ ++int au_lkup_neg(struct dentry *dentry, aufs_bindex_t bindex, int wh) ++{ ++ int err; ++ struct dentry *parent, *h_dentry; ++ struct au_branch *br; ++ struct user_namespace *h_userns; ++ struct path h_ppath; ++ ++ parent = dget_parent(dentry); ++ br = au_sbr(dentry->d_sb, bindex); ++ h_ppath.dentry = au_h_dptr(parent, bindex); ++ h_ppath.mnt = au_br_mnt(br); ++ h_userns = au_br_userns(br); ++ if (wh) ++ h_dentry = au_whtmp_lkup(h_ppath.dentry, br, &dentry->d_name); ++ else ++ h_dentry = au_sio_lkup_one(h_userns, &dentry->d_name, &h_ppath); ++ err = PTR_ERR(h_dentry); ++ if (IS_ERR(h_dentry)) ++ goto out; ++ if (unlikely(d_is_positive(h_dentry))) { ++ err = -EIO; ++ AuIOErr("%pd should be negative on b%d.\n", h_dentry, bindex); ++ dput(h_dentry); ++ goto out; ++ } ++ ++ err = 0; ++ if (bindex < au_dbtop(dentry)) ++ au_set_dbtop(dentry, bindex); ++ if (au_dbbot(dentry) < bindex) ++ au_set_dbbot(dentry, bindex); ++ au_set_h_dptr(dentry, bindex, h_dentry); ++ ++out: ++ dput(parent); ++ return err; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++/* subset of struct inode */ ++struct au_iattr { ++ unsigned long i_ino; ++ /* unsigned int i_nlink; */ ++ kuid_t i_uid; ++ kgid_t i_gid; ++ u64 i_version; ++/* ++ loff_t i_size; ++ blkcnt_t i_blocks; ++*/ ++ umode_t i_mode; ++}; ++ ++static void au_iattr_save(struct au_iattr *ia, struct inode *h_inode) ++{ ++ ia->i_ino = h_inode->i_ino; ++ /* ia->i_nlink = h_inode->i_nlink; */ ++ ia->i_uid = h_inode->i_uid; ++ ia->i_gid = h_inode->i_gid; ++ ia->i_version = inode_query_iversion(h_inode); ++/* ++ ia->i_size = h_inode->i_size; ++ ia->i_blocks = h_inode->i_blocks; ++*/ ++ ia->i_mode = (h_inode->i_mode & S_IFMT); ++} ++ ++static int au_iattr_test(struct au_iattr *ia, struct inode *h_inode) ++{ ++ return ia->i_ino != h_inode->i_ino ++ /* || ia->i_nlink != h_inode->i_nlink */ ++ || !uid_eq(ia->i_uid, h_inode->i_uid) ++ || !gid_eq(ia->i_gid, h_inode->i_gid) ++ || !inode_eq_iversion(h_inode, ia->i_version) ++/* ++ || ia->i_size != h_inode->i_size ++ || ia->i_blocks != h_inode->i_blocks ++*/ ++ || ia->i_mode != (h_inode->i_mode & S_IFMT); ++} ++ ++static int au_h_verify_dentry(struct dentry *h_dentry, struct dentry *h_parent, ++ struct au_branch *br) ++{ ++ int err; ++ struct au_iattr ia; ++ struct inode *h_inode; ++ struct dentry *h_d; ++ struct super_block *h_sb; ++ struct path h_ppath; ++ ++ err = 0; ++ memset(&ia, -1, sizeof(ia)); ++ h_sb = h_dentry->d_sb; ++ h_inode = NULL; ++ if (d_is_positive(h_dentry)) { ++ h_inode = d_inode(h_dentry); ++ au_iattr_save(&ia, h_inode); ++ } else if (au_test_nfs(h_sb) || au_test_fuse(h_sb)) ++ /* nfs d_revalidate may return 0 for negative dentry */ ++ /* fuse d_revalidate always return 0 for negative dentry */ ++ goto out; ++ ++ /* main purpose is namei.c:cached_lookup() and d_revalidate */ ++ h_ppath.dentry = h_parent; ++ h_ppath.mnt = au_br_mnt(br); ++ h_d = vfsub_lkup_one(&h_dentry->d_name, &h_ppath); ++ err = PTR_ERR(h_d); ++ if (IS_ERR(h_d)) ++ goto out; ++ ++ err = 0; ++ if (unlikely(h_d != h_dentry ++ || d_inode(h_d) != h_inode ++ || (h_inode && au_iattr_test(&ia, h_inode)))) ++ err = au_busy_or_stale(); ++ dput(h_d); ++ ++out: ++ AuTraceErr(err); ++ return err; ++} ++ ++int au_h_verify(struct dentry *h_dentry, unsigned int udba, struct inode *h_dir, ++ struct dentry *h_parent, struct au_branch *br) ++{ ++ int err; ++ ++ err = 0; ++ if (udba == AuOpt_UDBA_REVAL ++ && !au_test_fs_remote(h_dentry->d_sb)) { ++ IMustLock(h_dir); ++ err = (d_inode(h_dentry->d_parent) != h_dir); ++ } else if (udba != AuOpt_UDBA_NONE) ++ err = au_h_verify_dentry(h_dentry, h_parent, br); ++ ++ return err; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++static int au_do_refresh_hdentry(struct dentry *dentry, struct dentry *parent) ++{ ++ int err; ++ aufs_bindex_t new_bindex, bindex, bbot, bwh, bdiropq; ++ struct au_hdentry tmp, *p, *q; ++ struct au_dinfo *dinfo; ++ struct super_block *sb; ++ ++ DiMustWriteLock(dentry); ++ ++ sb = dentry->d_sb; ++ dinfo = au_di(dentry); ++ bbot = dinfo->di_bbot; ++ bwh = dinfo->di_bwh; ++ bdiropq = dinfo->di_bdiropq; ++ bindex = dinfo->di_btop; ++ p = au_hdentry(dinfo, bindex); ++ for (; bindex <= bbot; bindex++, p++) { ++ if (!p->hd_dentry) ++ continue; ++ ++ new_bindex = au_br_index(sb, p->hd_id); ++ if (new_bindex == bindex) ++ continue; ++ ++ if (dinfo->di_bwh == bindex) ++ bwh = new_bindex; ++ if (dinfo->di_bdiropq == bindex) ++ bdiropq = new_bindex; ++ if (new_bindex < 0) { ++ au_hdput(p); ++ p->hd_dentry = NULL; ++ continue; ++ } ++ ++ /* swap two lower dentries, and loop again */ ++ q = au_hdentry(dinfo, new_bindex); ++ tmp = *q; ++ *q = *p; ++ *p = tmp; ++ if (tmp.hd_dentry) { ++ bindex--; ++ p--; ++ } ++ } ++ ++ dinfo->di_bwh = -1; ++ if (bwh >= 0 && bwh <= au_sbbot(sb) && au_sbr_whable(sb, bwh)) ++ dinfo->di_bwh = bwh; ++ ++ dinfo->di_bdiropq = -1; ++ if (bdiropq >= 0 ++ && bdiropq <= au_sbbot(sb) ++ && au_sbr_whable(sb, bdiropq)) ++ dinfo->di_bdiropq = bdiropq; ++ ++ err = -EIO; ++ dinfo->di_btop = -1; ++ dinfo->di_bbot = -1; ++ bbot = au_dbbot(parent); ++ bindex = 0; ++ p = au_hdentry(dinfo, bindex); ++ for (; bindex <= bbot; bindex++, p++) ++ if (p->hd_dentry) { ++ dinfo->di_btop = bindex; ++ break; ++ } ++ ++ if (dinfo->di_btop >= 0) { ++ bindex = bbot; ++ p = au_hdentry(dinfo, bindex); ++ for (; bindex >= 0; bindex--, p--) ++ if (p->hd_dentry) { ++ dinfo->di_bbot = bindex; ++ err = 0; ++ break; ++ } ++ } ++ ++ return err; ++} ++ ++static void au_do_hide(struct dentry *dentry) ++{ ++ struct inode *inode; ++ ++ if (d_really_is_positive(dentry)) { ++ inode = d_inode(dentry); ++ if (!d_is_dir(dentry)) { ++ if (inode->i_nlink && !d_unhashed(dentry)) ++ drop_nlink(inode); ++ } else { ++ clear_nlink(inode); ++ /* stop next lookup */ ++ inode->i_flags |= S_DEAD; ++ } ++ smp_mb(); /* necessary? */ ++ } ++ d_drop(dentry); ++} ++ ++static int au_hide_children(struct dentry *parent) ++{ ++ int err, i, j, ndentry; ++ struct au_dcsub_pages dpages; ++ struct au_dpage *dpage; ++ struct dentry *dentry; ++ ++ err = au_dpages_init(&dpages, GFP_NOFS); ++ if (unlikely(err)) ++ goto out; ++ err = au_dcsub_pages(&dpages, parent, NULL, NULL); ++ if (unlikely(err)) ++ goto out_dpages; ++ ++ /* in reverse order */ ++ for (i = dpages.ndpage - 1; i >= 0; i--) { ++ dpage = dpages.dpages + i; ++ ndentry = dpage->ndentry; ++ for (j = ndentry - 1; j >= 0; j--) { ++ dentry = dpage->dentries[j]; ++ if (dentry != parent) ++ au_do_hide(dentry); ++ } ++ } ++ ++out_dpages: ++ au_dpages_free(&dpages); ++out: ++ return err; ++} ++ ++static void au_hide(struct dentry *dentry) ++{ ++ int err; ++ ++ AuDbgDentry(dentry); ++ if (d_is_dir(dentry)) { ++ /* shrink_dcache_parent(dentry); */ ++ err = au_hide_children(dentry); ++ if (unlikely(err)) ++ AuIOErr("%pd, failed hiding children, ignored %d\n", ++ dentry, err); ++ } ++ au_do_hide(dentry); ++} ++ ++/* ++ * By adding a dirty branch, a cached dentry may be affected in various ways. ++ * ++ * a dirty branch is added ++ * - on the top of layers ++ * - in the middle of layers ++ * - to the bottom of layers ++ * ++ * on the added branch there exists ++ * - a whiteout ++ * - a diropq ++ * - a same named entry ++ * + exist ++ * * negative --> positive ++ * * positive --> positive ++ * - type is unchanged ++ * - type is changed ++ * + doesn't exist ++ * * negative --> negative ++ * * positive --> negative (rejected by au_br_del() for non-dir case) ++ * - none ++ */ ++static int au_refresh_by_dinfo(struct dentry *dentry, struct au_dinfo *dinfo, ++ struct au_dinfo *tmp) ++{ ++ int err; ++ aufs_bindex_t bindex, bbot; ++ struct { ++ struct dentry *dentry; ++ struct inode *inode; ++ mode_t mode; ++ } orig_h, tmp_h = { ++ .dentry = NULL ++ }; ++ struct au_hdentry *hd; ++ struct inode *inode, *h_inode; ++ struct dentry *h_dentry; ++ ++ err = 0; ++ AuDebugOn(dinfo->di_btop < 0); ++ orig_h.mode = 0; ++ orig_h.dentry = au_hdentry(dinfo, dinfo->di_btop)->hd_dentry; ++ orig_h.inode = NULL; ++ if (d_is_positive(orig_h.dentry)) { ++ orig_h.inode = d_inode(orig_h.dentry); ++ orig_h.mode = orig_h.inode->i_mode & S_IFMT; ++ } ++ if (tmp->di_btop >= 0) { ++ tmp_h.dentry = au_hdentry(tmp, tmp->di_btop)->hd_dentry; ++ if (d_is_positive(tmp_h.dentry)) { ++ tmp_h.inode = d_inode(tmp_h.dentry); ++ tmp_h.mode = tmp_h.inode->i_mode & S_IFMT; ++ } ++ } ++ ++ inode = NULL; ++ if (d_really_is_positive(dentry)) ++ inode = d_inode(dentry); ++ if (!orig_h.inode) { ++ AuDbg("negative originally\n"); ++ if (inode) { ++ au_hide(dentry); ++ goto out; ++ } ++ AuDebugOn(inode); ++ AuDebugOn(dinfo->di_btop != dinfo->di_bbot); ++ AuDebugOn(dinfo->di_bdiropq != -1); ++ ++ if (!tmp_h.inode) { ++ AuDbg("negative --> negative\n"); ++ /* should have only one negative lower */ ++ if (tmp->di_btop >= 0 ++ && tmp->di_btop < dinfo->di_btop) { ++ AuDebugOn(tmp->di_btop != tmp->di_bbot); ++ AuDebugOn(dinfo->di_btop != dinfo->di_bbot); ++ au_set_h_dptr(dentry, dinfo->di_btop, NULL); ++ au_di_cp(dinfo, tmp); ++ hd = au_hdentry(tmp, tmp->di_btop); ++ au_set_h_dptr(dentry, tmp->di_btop, ++ dget(hd->hd_dentry)); ++ } ++ au_dbg_verify_dinode(dentry); ++ } else { ++ AuDbg("negative --> positive\n"); ++ /* ++ * similar to the behaviour of creating with bypassing ++ * aufs. ++ * unhash it in order to force an error in the ++ * succeeding create operation. ++ * we should not set S_DEAD here. ++ */ ++ d_drop(dentry); ++ /* au_di_swap(tmp, dinfo); */ ++ au_dbg_verify_dinode(dentry); ++ } ++ } else { ++ AuDbg("positive originally\n"); ++ /* inode may be NULL */ ++ AuDebugOn(inode && (inode->i_mode & S_IFMT) != orig_h.mode); ++ if (!tmp_h.inode) { ++ AuDbg("positive --> negative\n"); ++ /* or bypassing aufs */ ++ au_hide(dentry); ++ if (tmp->di_bwh >= 0 && tmp->di_bwh <= dinfo->di_btop) ++ dinfo->di_bwh = tmp->di_bwh; ++ if (inode) ++ err = au_refresh_hinode_self(inode); ++ au_dbg_verify_dinode(dentry); ++ } else if (orig_h.mode == tmp_h.mode) { ++ AuDbg("positive --> positive, same type\n"); ++ if (!S_ISDIR(orig_h.mode) ++ && dinfo->di_btop > tmp->di_btop) { ++ /* ++ * similar to the behaviour of removing and ++ * creating. ++ */ ++ au_hide(dentry); ++ if (inode) ++ err = au_refresh_hinode_self(inode); ++ au_dbg_verify_dinode(dentry); ++ } else { ++ /* fill empty slots */ ++ if (dinfo->di_btop > tmp->di_btop) ++ dinfo->di_btop = tmp->di_btop; ++ if (dinfo->di_bbot < tmp->di_bbot) ++ dinfo->di_bbot = tmp->di_bbot; ++ dinfo->di_bwh = tmp->di_bwh; ++ dinfo->di_bdiropq = tmp->di_bdiropq; ++ bbot = dinfo->di_bbot; ++ bindex = tmp->di_btop; ++ hd = au_hdentry(tmp, bindex); ++ for (; bindex <= bbot; bindex++, hd++) { ++ if (au_h_dptr(dentry, bindex)) ++ continue; ++ h_dentry = hd->hd_dentry; ++ if (!h_dentry) ++ continue; ++ AuDebugOn(d_is_negative(h_dentry)); ++ h_inode = d_inode(h_dentry); ++ AuDebugOn(orig_h.mode ++ != (h_inode->i_mode ++ & S_IFMT)); ++ au_set_h_dptr(dentry, bindex, ++ dget(h_dentry)); ++ } ++ if (inode) ++ err = au_refresh_hinode(inode, dentry); ++ au_dbg_verify_dinode(dentry); ++ } ++ } else { ++ AuDbg("positive --> positive, different type\n"); ++ /* similar to the behaviour of removing and creating */ ++ au_hide(dentry); ++ if (inode) ++ err = au_refresh_hinode_self(inode); ++ au_dbg_verify_dinode(dentry); ++ } ++ } ++ ++out: ++ return err; ++} ++ ++void au_refresh_dop(struct dentry *dentry, int force_reval) ++{ ++ const struct dentry_operations *dop ++ = force_reval ? &aufs_dop : dentry->d_sb->s_d_op; ++ static const unsigned int mask ++ = DCACHE_OP_REVALIDATE | DCACHE_OP_WEAK_REVALIDATE; ++ ++ BUILD_BUG_ON(sizeof(mask) != sizeof(dentry->d_flags)); ++ ++ if (dentry->d_op == dop) ++ return; ++ ++ AuDbg("%pd\n", dentry); ++ spin_lock(&dentry->d_lock); ++ if (dop == &aufs_dop) ++ dentry->d_flags |= mask; ++ else ++ dentry->d_flags &= ~mask; ++ dentry->d_op = dop; ++ spin_unlock(&dentry->d_lock); ++} ++ ++int au_refresh_dentry(struct dentry *dentry, struct dentry *parent) ++{ ++ int err, ebrange, nbr; ++ unsigned int sigen; ++ struct au_dinfo *dinfo, *tmp; ++ struct super_block *sb; ++ struct inode *inode; ++ ++ DiMustWriteLock(dentry); ++ AuDebugOn(IS_ROOT(dentry)); ++ AuDebugOn(d_really_is_negative(parent)); ++ ++ sb = dentry->d_sb; ++ sigen = au_sigen(sb); ++ err = au_digen_test(parent, sigen); ++ if (unlikely(err)) ++ goto out; ++ ++ nbr = au_sbbot(sb) + 1; ++ dinfo = au_di(dentry); ++ err = au_di_realloc(dinfo, nbr, /*may_shrink*/0); ++ if (unlikely(err)) ++ goto out; ++ ebrange = au_dbrange_test(dentry); ++ if (!ebrange) ++ ebrange = au_do_refresh_hdentry(dentry, parent); ++ ++ if (d_unhashed(dentry) || ebrange /* || dinfo->di_tmpfile */) { ++ AuDebugOn(au_dbtop(dentry) < 0 && au_dbbot(dentry) >= 0); ++ if (d_really_is_positive(dentry)) { ++ inode = d_inode(dentry); ++ err = au_refresh_hinode_self(inode); ++ } ++ au_dbg_verify_dinode(dentry); ++ if (!err) ++ goto out_dgen; /* success */ ++ goto out; ++ } ++ ++ /* temporary dinfo */ ++ AuDbgDentry(dentry); ++ err = -ENOMEM; ++ tmp = au_di_alloc(sb, AuLsc_DI_TMP); ++ if (unlikely(!tmp)) ++ goto out; ++ au_di_swap(tmp, dinfo); ++ /* returns the number of positive dentries */ ++ /* ++ * if current working dir is removed, it returns an error. ++ * but the dentry is legal. ++ */ ++ err = au_lkup_dentry(dentry, /*btop*/0, AuLkup_ALLOW_NEG); ++ AuDbgDentry(dentry); ++ au_di_swap(tmp, dinfo); ++ if (err == -ENOENT) ++ err = 0; ++ if (err >= 0) { ++ /* compare/refresh by dinfo */ ++ AuDbgDentry(dentry); ++ err = au_refresh_by_dinfo(dentry, dinfo, tmp); ++ au_dbg_verify_dinode(dentry); ++ AuTraceErr(err); ++ } ++ au_di_realloc(dinfo, nbr, /*may_shrink*/1); /* harmless if err */ ++ au_rw_write_unlock(&tmp->di_rwsem); ++ au_di_free(tmp); ++ if (unlikely(err)) ++ goto out; ++ ++out_dgen: ++ au_update_digen(dentry); ++out: ++ if (unlikely(err && !(dentry->d_flags & DCACHE_NFSFS_RENAMED))) { ++ AuIOErr("failed refreshing %pd, %d\n", dentry, err); ++ AuDbgDentry(dentry); ++ } ++ AuTraceErr(err); ++ return err; ++} ++ ++static int au_do_h_d_reval(struct dentry *h_dentry, unsigned int flags, ++ struct dentry *dentry, aufs_bindex_t bindex) ++{ ++ int err, valid; ++ ++ err = 0; ++ if (!(h_dentry->d_flags & DCACHE_OP_REVALIDATE)) ++ goto out; ++ ++ AuDbg("b%d\n", bindex); ++ /* ++ * gave up supporting LOOKUP_CREATE/OPEN for lower fs, ++ * due to whiteout and branch permission. ++ */ ++ flags &= ~(/*LOOKUP_PARENT |*/ LOOKUP_OPEN | LOOKUP_CREATE ++ | LOOKUP_FOLLOW | LOOKUP_EXCL); ++ /* it may return tri-state */ ++ valid = h_dentry->d_op->d_revalidate(h_dentry, flags); ++ ++ if (unlikely(valid < 0)) ++ err = valid; ++ else if (!valid) ++ err = -EINVAL; ++ ++out: ++ AuTraceErr(err); ++ return err; ++} ++ ++/* todo: remove this */ ++static int h_d_revalidate(struct dentry *dentry, struct inode *inode, ++ unsigned int flags, int do_udba, int dirren) ++{ ++ int err; ++ umode_t mode, h_mode; ++ aufs_bindex_t bindex, btail, btop, ibs, ibe; ++ unsigned char plus, unhashed, is_root, h_plus, h_nfs, tmpfile; ++ struct inode *h_inode, *h_cached_inode; ++ struct dentry *h_dentry; ++ struct qstr *name, *h_name; ++ ++ err = 0; ++ plus = 0; ++ mode = 0; ++ ibs = -1; ++ ibe = -1; ++ unhashed = !!d_unhashed(dentry); ++ is_root = !!IS_ROOT(dentry); ++ name = &dentry->d_name; ++ tmpfile = au_di(dentry)->di_tmpfile; ++ ++ /* ++ * Theoretically, REVAL test should be unnecessary in case of ++ * {FS,I}NOTIFY. ++ * But {fs,i}notify doesn't fire some necessary events, ++ * IN_ATTRIB for atime/nlink/pageio ++ * Let's do REVAL test too. ++ */ ++ if (do_udba && inode) { ++ mode = (inode->i_mode & S_IFMT); ++ plus = (inode->i_nlink > 0); ++ ibs = au_ibtop(inode); ++ ibe = au_ibbot(inode); ++ } ++ ++ btop = au_dbtop(dentry); ++ btail = btop; ++ if (inode && S_ISDIR(inode->i_mode)) ++ btail = au_dbtaildir(dentry); ++ for (bindex = btop; bindex <= btail; bindex++) { ++ h_dentry = au_h_dptr(dentry, bindex); ++ if (!h_dentry) ++ continue; ++ ++ AuDbg("b%d, %pd\n", bindex, h_dentry); ++ h_nfs = !!au_test_nfs(h_dentry->d_sb); ++ spin_lock(&h_dentry->d_lock); ++ h_name = &h_dentry->d_name; ++ if (unlikely(do_udba ++ && !is_root ++ && ((!h_nfs ++ && (unhashed != !!d_unhashed(h_dentry) ++ || (!tmpfile && !dirren ++ && !au_qstreq(name, h_name)) ++ )) ++ || (h_nfs ++ && !(flags & LOOKUP_OPEN) ++ && (h_dentry->d_flags ++ & DCACHE_NFSFS_RENAMED))) ++ )) { ++ int h_unhashed; ++ ++ h_unhashed = d_unhashed(h_dentry); ++ spin_unlock(&h_dentry->d_lock); ++ AuDbg("unhash 0x%x 0x%x, %pd %pd\n", ++ unhashed, h_unhashed, dentry, h_dentry); ++ goto err; ++ } ++ spin_unlock(&h_dentry->d_lock); ++ ++ err = au_do_h_d_reval(h_dentry, flags, dentry, bindex); ++ if (unlikely(err)) ++ /* do not goto err, to keep the errno */ ++ break; ++ ++ /* todo: plink too? */ ++ if (!do_udba) ++ continue; ++ ++ /* UDBA tests */ ++ if (unlikely(!!inode != d_is_positive(h_dentry))) ++ goto err; ++ ++ h_inode = NULL; ++ if (d_is_positive(h_dentry)) ++ h_inode = d_inode(h_dentry); ++ h_plus = plus; ++ h_mode = mode; ++ h_cached_inode = h_inode; ++ if (h_inode) { ++ h_mode = (h_inode->i_mode & S_IFMT); ++ h_plus = (h_inode->i_nlink > 0); ++ } ++ if (inode && ibs <= bindex && bindex <= ibe) ++ h_cached_inode = au_h_iptr(inode, bindex); ++ ++ if (!h_nfs) { ++ if (unlikely(plus != h_plus && !tmpfile)) ++ goto err; ++ } else { ++ if (unlikely(!(h_dentry->d_flags & DCACHE_NFSFS_RENAMED) ++ && !is_root ++ && !IS_ROOT(h_dentry) ++ && unhashed != d_unhashed(h_dentry))) ++ goto err; ++ } ++ if (unlikely(mode != h_mode ++ || h_cached_inode != h_inode)) ++ goto err; ++ continue; ++ ++err: ++ err = -EINVAL; ++ break; ++ } ++ ++ AuTraceErr(err); ++ return err; ++} ++ ++/* todo: consolidate with do_refresh() and au_reval_for_attr() */ ++static int simple_reval_dpath(struct dentry *dentry, unsigned int sigen) ++{ ++ int err; ++ struct dentry *parent; ++ ++ if (!au_digen_test(dentry, sigen)) ++ return 0; ++ ++ parent = dget_parent(dentry); ++ di_read_lock_parent(parent, AuLock_IR); ++ AuDebugOn(au_digen_test(parent, sigen)); ++ au_dbg_verify_gen(parent, sigen); ++ err = au_refresh_dentry(dentry, parent); ++ di_read_unlock(parent, AuLock_IR); ++ dput(parent); ++ AuTraceErr(err); ++ return err; ++} ++ ++int au_reval_dpath(struct dentry *dentry, unsigned int sigen) ++{ ++ int err; ++ struct dentry *d, *parent; ++ ++ if (!au_ftest_si(au_sbi(dentry->d_sb), FAILED_REFRESH_DIR)) ++ return simple_reval_dpath(dentry, sigen); ++ ++ /* slow loop, keep it simple and stupid */ ++ /* cf: au_cpup_dirs() */ ++ err = 0; ++ parent = NULL; ++ while (au_digen_test(dentry, sigen)) { ++ d = dentry; ++ while (1) { ++ dput(parent); ++ parent = dget_parent(d); ++ if (!au_digen_test(parent, sigen)) ++ break; ++ d = parent; ++ } ++ ++ if (d != dentry) ++ di_write_lock_child2(d); ++ ++ /* someone might update our dentry while we were sleeping */ ++ if (au_digen_test(d, sigen)) { ++ /* ++ * todo: consolidate with simple_reval_dpath(), ++ * do_refresh() and au_reval_for_attr(). ++ */ ++ di_read_lock_parent(parent, AuLock_IR); ++ err = au_refresh_dentry(d, parent); ++ di_read_unlock(parent, AuLock_IR); ++ } ++ ++ if (d != dentry) ++ di_write_unlock(d); ++ dput(parent); ++ if (unlikely(err)) ++ break; ++ } ++ ++ return err; ++} ++ ++/* ++ * if valid returns 1, otherwise 0. ++ */ ++static int aufs_d_revalidate(struct dentry *dentry, unsigned int flags) ++{ ++ int valid, err; ++ unsigned int sigen; ++ unsigned char do_udba, dirren; ++ struct super_block *sb; ++ struct inode *inode; ++ ++ /* todo: support rcu-walk? */ ++ if (flags & LOOKUP_RCU) ++ return -ECHILD; ++ ++ valid = 0; ++ if (unlikely(!au_di(dentry))) ++ goto out; ++ ++ valid = 1; ++ sb = dentry->d_sb; ++ /* ++ * todo: very ugly ++ * i_mutex of parent dir may be held, ++ * but we should not return 'invalid' due to busy. ++ */ ++ err = aufs_read_lock(dentry, AuLock_FLUSH | AuLock_DW | AuLock_NOPLM); ++ if (unlikely(err)) { ++ valid = err; ++ AuTraceErr(err); ++ goto out; ++ } ++ inode = NULL; ++ if (d_really_is_positive(dentry)) ++ inode = d_inode(dentry); ++ if (unlikely(inode && au_is_bad_inode(inode))) { ++ err = -EINVAL; ++ AuTraceErr(err); ++ goto out_dgrade; ++ } ++ if (unlikely(au_dbrange_test(dentry))) { ++ err = -EINVAL; ++ AuTraceErr(err); ++ goto out_dgrade; ++ } ++ ++ sigen = au_sigen(sb); ++ if (au_digen_test(dentry, sigen)) { ++ AuDebugOn(IS_ROOT(dentry)); ++ err = au_reval_dpath(dentry, sigen); ++ if (unlikely(err)) { ++ AuTraceErr(err); ++ goto out_dgrade; ++ } ++ } ++ di_downgrade_lock(dentry, AuLock_IR); ++ ++ err = -EINVAL; ++ if (!(flags & (LOOKUP_OPEN | LOOKUP_EMPTY)) ++ && inode ++ && !(inode->i_state && I_LINKABLE) ++ && (IS_DEADDIR(inode) || !inode->i_nlink)) { ++ AuTraceErr(err); ++ goto out_inval; ++ } ++ ++ do_udba = !au_opt_test(au_mntflags(sb), UDBA_NONE); ++ if (do_udba && inode) { ++ aufs_bindex_t btop = au_ibtop(inode); ++ struct inode *h_inode; ++ ++ if (btop >= 0) { ++ h_inode = au_h_iptr(inode, btop); ++ if (h_inode && au_test_higen(inode, h_inode)) { ++ AuTraceErr(err); ++ goto out_inval; ++ } ++ } ++ } ++ ++ dirren = !!au_opt_test(au_mntflags(sb), DIRREN); ++ err = h_d_revalidate(dentry, inode, flags, do_udba, dirren); ++ if (unlikely(!err && do_udba && au_dbtop(dentry) < 0)) { ++ err = -EIO; ++ AuDbg("both of real entry and whiteout found, %p, err %d\n", ++ dentry, err); ++ } ++ goto out_inval; ++ ++out_dgrade: ++ di_downgrade_lock(dentry, AuLock_IR); ++out_inval: ++ aufs_read_unlock(dentry, AuLock_IR); ++ AuTraceErr(err); ++ valid = !err; ++out: ++ if (!valid) { ++ AuDbg("%pd invalid, %d\n", dentry, valid); ++ d_drop(dentry); ++ } ++ return valid; ++} ++ ++static void aufs_d_release(struct dentry *dentry) ++{ ++ if (au_di(dentry)) { ++ au_di_fin(dentry); ++ au_hn_di_reinit(dentry); ++ } ++} ++ ++const struct dentry_operations aufs_dop = { ++ .d_revalidate = aufs_d_revalidate, ++ .d_weak_revalidate = aufs_d_revalidate, ++ .d_release = aufs_d_release ++}; ++ ++/* aufs_dop without d_revalidate */ ++const struct dentry_operations aufs_dop_noreval = { ++ .d_release = aufs_d_release ++}; +diff -Naur linux-5.15/fs/aufs/dentry.h aufs5-linux-aufs5.15/fs/aufs/dentry.h +--- linux-5.15/fs/aufs/dentry.h 1970-01-01 03:00:00.000000000 +0300 ++++ aufs5-linux-aufs5.15/fs/aufs/dentry.h 2022-03-07 13:48:09.000000000 +0300 +@@ -0,0 +1,256 @@ ++/* SPDX-License-Identifier: GPL-2.0 */ ++/* ++ * Copyright (C) 2005-2021 Junjiro R. Okajima ++ */ ++ ++/* ++ * lookup and dentry operations ++ */ ++ ++#ifndef __AUFS_DENTRY_H__ ++#define __AUFS_DENTRY_H__ ++ ++#ifdef __KERNEL__ ++ ++#include ++#include "dirren.h" ++#include "rwsem.h" ++ ++struct au_hdentry { ++ struct dentry *hd_dentry; ++ aufs_bindex_t hd_id; ++}; ++ ++struct au_dinfo { ++ atomic_t di_generation; ++ ++ struct au_rwsem di_rwsem; ++ aufs_bindex_t di_btop, di_bbot, di_bwh, di_bdiropq; ++ unsigned char di_tmpfile; /* to allow the different name */ ++ struct au_hdentry *di_hdentry; ++ struct rcu_head rcu; ++} ____cacheline_aligned_in_smp; ++ ++/* ---------------------------------------------------------------------- */ ++ ++/* flags for au_lkup_dentry() */ ++#define AuLkup_ALLOW_NEG 1 ++#define AuLkup_IGNORE_PERM (1 << 1) ++#define AuLkup_DIRREN (1 << 2) ++#define au_ftest_lkup(flags, name) ((flags) & AuLkup_##name) ++#define au_fset_lkup(flags, name) \ ++ do { (flags) |= AuLkup_##name; } while (0) ++#define au_fclr_lkup(flags, name) \ ++ do { (flags) &= ~AuLkup_##name; } while (0) ++ ++#ifndef CONFIG_AUFS_DIRREN ++#undef AuLkup_DIRREN ++#define AuLkup_DIRREN 0 ++#endif ++ ++struct au_do_lookup_args { ++ unsigned int flags; ++ mode_t type; ++ struct qstr whname, *name; ++ struct au_dr_lookup dirren; ++}; ++ ++/* ---------------------------------------------------------------------- */ ++ ++/* dentry.c */ ++extern const struct dentry_operations aufs_dop, aufs_dop_noreval; ++struct au_branch; ++struct dentry *au_sio_lkup_one(struct user_namespace *userns, struct qstr *name, ++ struct path *ppath); ++int au_h_verify(struct dentry *h_dentry, unsigned int udba, struct inode *h_dir, ++ struct dentry *h_parent, struct au_branch *br); ++ ++int au_lkup_dentry(struct dentry *dentry, aufs_bindex_t btop, ++ unsigned int flags); ++int au_lkup_neg(struct dentry *dentry, aufs_bindex_t bindex, int wh); ++int au_refresh_dentry(struct dentry *dentry, struct dentry *parent); ++int au_reval_dpath(struct dentry *dentry, unsigned int sigen); ++void au_refresh_dop(struct dentry *dentry, int force_reval); ++ ++/* dinfo.c */ ++void au_di_init_once(void *_di); ++struct au_dinfo *au_di_alloc(struct super_block *sb, unsigned int lsc); ++void au_di_free(struct au_dinfo *dinfo); ++void au_di_swap(struct au_dinfo *a, struct au_dinfo *b); ++void au_di_cp(struct au_dinfo *dst, struct au_dinfo *src); ++int au_di_init(struct dentry *dentry); ++void au_di_fin(struct dentry *dentry); ++int au_di_realloc(struct au_dinfo *dinfo, int nbr, int may_shrink); ++ ++void di_read_lock(struct dentry *d, int flags, unsigned int lsc); ++void di_read_unlock(struct dentry *d, int flags); ++void di_downgrade_lock(struct dentry *d, int flags); ++void di_write_lock(struct dentry *d, unsigned int lsc); ++void di_write_unlock(struct dentry *d); ++void di_write_lock2_child(struct dentry *d1, struct dentry *d2, int isdir); ++void di_write_lock2_parent(struct dentry *d1, struct dentry *d2, int isdir); ++void di_write_unlock2(struct dentry *d1, struct dentry *d2); ++ ++struct dentry *au_h_dptr(struct dentry *dentry, aufs_bindex_t bindex); ++struct dentry *au_h_d_alias(struct dentry *dentry, aufs_bindex_t bindex); ++aufs_bindex_t au_dbtail(struct dentry *dentry); ++aufs_bindex_t au_dbtaildir(struct dentry *dentry); ++ ++void au_set_h_dptr(struct dentry *dentry, aufs_bindex_t bindex, ++ struct dentry *h_dentry); ++int au_digen_test(struct dentry *dentry, unsigned int sigen); ++int au_dbrange_test(struct dentry *dentry); ++void au_update_digen(struct dentry *dentry); ++void au_update_dbrange(struct dentry *dentry, int do_put_zero); ++void au_update_dbtop(struct dentry *dentry); ++void au_update_dbbot(struct dentry *dentry); ++int au_find_dbindex(struct dentry *dentry, struct dentry *h_dentry); ++ ++/* ---------------------------------------------------------------------- */ ++ ++static inline struct au_dinfo *au_di(struct dentry *dentry) ++{ ++ return dentry->d_fsdata; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++/* lock subclass for dinfo */ ++enum { ++ AuLsc_DI_CHILD, /* child first */ ++ AuLsc_DI_CHILD2, /* rename(2), link(2), and cpup at hnotify */ ++ AuLsc_DI_CHILD3, /* copyup dirs */ ++ AuLsc_DI_PARENT, ++ AuLsc_DI_PARENT2, ++ AuLsc_DI_PARENT3, ++ AuLsc_DI_TMP /* temp for replacing dinfo */ ++}; ++ ++/* ++ * di_read_lock_child, di_write_lock_child, ++ * di_read_lock_child2, di_write_lock_child2, ++ * di_read_lock_child3, di_write_lock_child3, ++ * di_read_lock_parent, di_write_lock_parent, ++ * di_read_lock_parent2, di_write_lock_parent2, ++ * di_read_lock_parent3, di_write_lock_parent3, ++ */ ++#define AuReadLockFunc(name, lsc) \ ++static inline void di_read_lock_##name(struct dentry *d, int flags) \ ++{ di_read_lock(d, flags, AuLsc_DI_##lsc); } ++ ++#define AuWriteLockFunc(name, lsc) \ ++static inline void di_write_lock_##name(struct dentry *d) \ ++{ di_write_lock(d, AuLsc_DI_##lsc); } ++ ++#define AuRWLockFuncs(name, lsc) \ ++ AuReadLockFunc(name, lsc) \ ++ AuWriteLockFunc(name, lsc) ++ ++AuRWLockFuncs(child, CHILD); ++AuRWLockFuncs(child2, CHILD2); ++AuRWLockFuncs(child3, CHILD3); ++AuRWLockFuncs(parent, PARENT); ++AuRWLockFuncs(parent2, PARENT2); ++AuRWLockFuncs(parent3, PARENT3); ++ ++#undef AuReadLockFunc ++#undef AuWriteLockFunc ++#undef AuRWLockFuncs ++ ++#define DiMustNoWaiters(d) AuRwMustNoWaiters(&au_di(d)->di_rwsem) ++#define DiMustAnyLock(d) AuRwMustAnyLock(&au_di(d)->di_rwsem) ++#define DiMustWriteLock(d) AuRwMustWriteLock(&au_di(d)->di_rwsem) ++ ++/* ---------------------------------------------------------------------- */ ++ ++/* todo: memory barrier? */ ++static inline unsigned int au_digen(struct dentry *d) ++{ ++ return atomic_read(&au_di(d)->di_generation); ++} ++ ++static inline void au_h_dentry_init(struct au_hdentry *hdentry) ++{ ++ hdentry->hd_dentry = NULL; ++} ++ ++static inline struct au_hdentry *au_hdentry(struct au_dinfo *di, ++ aufs_bindex_t bindex) ++{ ++ return di->di_hdentry + bindex; ++} ++ ++static inline void au_hdput(struct au_hdentry *hd) ++{ ++ if (hd) ++ dput(hd->hd_dentry); ++} ++ ++static inline aufs_bindex_t au_dbtop(struct dentry *dentry) ++{ ++ DiMustAnyLock(dentry); ++ return au_di(dentry)->di_btop; ++} ++ ++static inline aufs_bindex_t au_dbbot(struct dentry *dentry) ++{ ++ DiMustAnyLock(dentry); ++ return au_di(dentry)->di_bbot; ++} ++ ++static inline aufs_bindex_t au_dbwh(struct dentry *dentry) ++{ ++ DiMustAnyLock(dentry); ++ return au_di(dentry)->di_bwh; ++} ++ ++static inline aufs_bindex_t au_dbdiropq(struct dentry *dentry) ++{ ++ DiMustAnyLock(dentry); ++ return au_di(dentry)->di_bdiropq; ++} ++ ++/* todo: hard/soft set? */ ++static inline void au_set_dbtop(struct dentry *dentry, aufs_bindex_t bindex) ++{ ++ DiMustWriteLock(dentry); ++ au_di(dentry)->di_btop = bindex; ++} ++ ++static inline void au_set_dbbot(struct dentry *dentry, aufs_bindex_t bindex) ++{ ++ DiMustWriteLock(dentry); ++ au_di(dentry)->di_bbot = bindex; ++} ++ ++static inline void au_set_dbwh(struct dentry *dentry, aufs_bindex_t bindex) ++{ ++ DiMustWriteLock(dentry); ++ /* dbwh can be outside of btop - bbot range */ ++ au_di(dentry)->di_bwh = bindex; ++} ++ ++static inline void au_set_dbdiropq(struct dentry *dentry, aufs_bindex_t bindex) ++{ ++ DiMustWriteLock(dentry); ++ au_di(dentry)->di_bdiropq = bindex; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++#ifdef CONFIG_AUFS_HNOTIFY ++static inline void au_digen_dec(struct dentry *d) ++{ ++ atomic_dec(&au_di(d)->di_generation); ++} ++ ++static inline void au_hn_di_reinit(struct dentry *dentry) ++{ ++ dentry->d_fsdata = NULL; ++} ++#else ++AuStubVoid(au_hn_di_reinit, struct dentry *dentry __maybe_unused) ++#endif /* CONFIG_AUFS_HNOTIFY */ ++ ++#endif /* __KERNEL__ */ ++#endif /* __AUFS_DENTRY_H__ */ +diff -Naur linux-5.15/fs/aufs/dinfo.c aufs5-linux-aufs5.15/fs/aufs/dinfo.c +--- linux-5.15/fs/aufs/dinfo.c 1970-01-01 03:00:00.000000000 +0300 ++++ aufs5-linux-aufs5.15/fs/aufs/dinfo.c 2022-03-07 13:48:09.000000000 +0300 +@@ -0,0 +1,541 @@ ++// SPDX-License-Identifier: GPL-2.0 ++/* ++ * Copyright (C) 2005-2021 Junjiro R. Okajima ++ */ ++ ++/* ++ * dentry private data ++ */ ++ ++#include "aufs.h" ++ ++void au_di_init_once(void *_dinfo) ++{ ++ struct au_dinfo *dinfo = _dinfo; ++ ++ au_rw_init(&dinfo->di_rwsem); ++} ++ ++struct au_dinfo *au_di_alloc(struct super_block *sb, unsigned int lsc) ++{ ++ struct au_dinfo *dinfo; ++ int nbr, i; ++ ++ dinfo = au_cache_alloc_dinfo(); ++ if (unlikely(!dinfo)) ++ goto out; ++ ++ nbr = au_sbbot(sb) + 1; ++ if (nbr <= 0) ++ nbr = 1; ++ dinfo->di_hdentry = kcalloc(nbr, sizeof(*dinfo->di_hdentry), GFP_NOFS); ++ if (dinfo->di_hdentry) { ++ au_rw_write_lock_nested(&dinfo->di_rwsem, lsc); ++ dinfo->di_btop = -1; ++ dinfo->di_bbot = -1; ++ dinfo->di_bwh = -1; ++ dinfo->di_bdiropq = -1; ++ dinfo->di_tmpfile = 0; ++ for (i = 0; i < nbr; i++) ++ dinfo->di_hdentry[i].hd_id = -1; ++ goto out; ++ } ++ ++ au_cache_free_dinfo(dinfo); ++ dinfo = NULL; ++ ++out: ++ return dinfo; ++} ++ ++void au_di_free(struct au_dinfo *dinfo) ++{ ++ struct au_hdentry *p; ++ aufs_bindex_t bbot, bindex; ++ ++ /* dentry may not be revalidated */ ++ bindex = dinfo->di_btop; ++ if (bindex >= 0) { ++ bbot = dinfo->di_bbot; ++ p = au_hdentry(dinfo, bindex); ++ while (bindex++ <= bbot) ++ au_hdput(p++); ++ } ++ au_kfree_try_rcu(dinfo->di_hdentry); ++ au_cache_free_dinfo(dinfo); ++} ++ ++void au_di_swap(struct au_dinfo *a, struct au_dinfo *b) ++{ ++ struct au_hdentry *p; ++ aufs_bindex_t bi; ++ ++ AuRwMustWriteLock(&a->di_rwsem); ++ AuRwMustWriteLock(&b->di_rwsem); ++ ++#define DiSwap(v, name) \ ++ do { \ ++ v = a->di_##name; \ ++ a->di_##name = b->di_##name; \ ++ b->di_##name = v; \ ++ } while (0) ++ ++ DiSwap(p, hdentry); ++ DiSwap(bi, btop); ++ DiSwap(bi, bbot); ++ DiSwap(bi, bwh); ++ DiSwap(bi, bdiropq); ++ /* smp_mb(); */ ++ ++#undef DiSwap ++} ++ ++void au_di_cp(struct au_dinfo *dst, struct au_dinfo *src) ++{ ++ AuRwMustWriteLock(&dst->di_rwsem); ++ AuRwMustWriteLock(&src->di_rwsem); ++ ++ dst->di_btop = src->di_btop; ++ dst->di_bbot = src->di_bbot; ++ dst->di_bwh = src->di_bwh; ++ dst->di_bdiropq = src->di_bdiropq; ++ /* smp_mb(); */ ++} ++ ++int au_di_init(struct dentry *dentry) ++{ ++ int err; ++ struct super_block *sb; ++ struct au_dinfo *dinfo; ++ ++ err = 0; ++ sb = dentry->d_sb; ++ dinfo = au_di_alloc(sb, AuLsc_DI_CHILD); ++ if (dinfo) { ++ atomic_set(&dinfo->di_generation, au_sigen(sb)); ++ /* smp_mb(); */ /* atomic_set */ ++ dentry->d_fsdata = dinfo; ++ } else ++ err = -ENOMEM; ++ ++ return err; ++} ++ ++void au_di_fin(struct dentry *dentry) ++{ ++ struct au_dinfo *dinfo; ++ ++ dinfo = au_di(dentry); ++ AuRwDestroy(&dinfo->di_rwsem); ++ au_di_free(dinfo); ++} ++ ++int au_di_realloc(struct au_dinfo *dinfo, int nbr, int may_shrink) ++{ ++ int err, sz; ++ struct au_hdentry *hdp; ++ ++ AuRwMustWriteLock(&dinfo->di_rwsem); ++ ++ err = -ENOMEM; ++ sz = sizeof(*hdp) * (dinfo->di_bbot + 1); ++ if (!sz) ++ sz = sizeof(*hdp); ++ hdp = au_kzrealloc(dinfo->di_hdentry, sz, sizeof(*hdp) * nbr, GFP_NOFS, ++ may_shrink); ++ if (hdp) { ++ dinfo->di_hdentry = hdp; ++ err = 0; ++ } ++ ++ return err; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++static void do_ii_write_lock(struct inode *inode, unsigned int lsc) ++{ ++ switch (lsc) { ++ case AuLsc_DI_CHILD: ++ ii_write_lock_child(inode); ++ break; ++ case AuLsc_DI_CHILD2: ++ ii_write_lock_child2(inode); ++ break; ++ case AuLsc_DI_CHILD3: ++ ii_write_lock_child3(inode); ++ break; ++ case AuLsc_DI_PARENT: ++ ii_write_lock_parent(inode); ++ break; ++ case AuLsc_DI_PARENT2: ++ ii_write_lock_parent2(inode); ++ break; ++ case AuLsc_DI_PARENT3: ++ ii_write_lock_parent3(inode); ++ break; ++ default: ++ BUG(); ++ } ++} ++ ++static void do_ii_read_lock(struct inode *inode, unsigned int lsc) ++{ ++ switch (lsc) { ++ case AuLsc_DI_CHILD: ++ ii_read_lock_child(inode); ++ break; ++ case AuLsc_DI_CHILD2: ++ ii_read_lock_child2(inode); ++ break; ++ case AuLsc_DI_CHILD3: ++ ii_read_lock_child3(inode); ++ break; ++ case AuLsc_DI_PARENT: ++ ii_read_lock_parent(inode); ++ break; ++ case AuLsc_DI_PARENT2: ++ ii_read_lock_parent2(inode); ++ break; ++ case AuLsc_DI_PARENT3: ++ ii_read_lock_parent3(inode); ++ break; ++ default: ++ BUG(); ++ } ++} ++ ++void di_read_lock(struct dentry *d, int flags, unsigned int lsc) ++{ ++ struct inode *inode; ++ ++ au_rw_read_lock_nested(&au_di(d)->di_rwsem, lsc); ++ if (d_really_is_positive(d)) { ++ inode = d_inode(d); ++ if (au_ftest_lock(flags, IW)) ++ do_ii_write_lock(inode, lsc); ++ else if (au_ftest_lock(flags, IR)) ++ do_ii_read_lock(inode, lsc); ++ } ++} ++ ++void di_read_unlock(struct dentry *d, int flags) ++{ ++ struct inode *inode; ++ ++ if (d_really_is_positive(d)) { ++ inode = d_inode(d); ++ if (au_ftest_lock(flags, IW)) { ++ au_dbg_verify_dinode(d); ++ ii_write_unlock(inode); ++ } else if (au_ftest_lock(flags, IR)) { ++ au_dbg_verify_dinode(d); ++ ii_read_unlock(inode); ++ } ++ } ++ au_rw_read_unlock(&au_di(d)->di_rwsem); ++} ++ ++void di_downgrade_lock(struct dentry *d, int flags) ++{ ++ if (d_really_is_positive(d) && au_ftest_lock(flags, IR)) ++ ii_downgrade_lock(d_inode(d)); ++ au_rw_dgrade_lock(&au_di(d)->di_rwsem); ++} ++ ++void di_write_lock(struct dentry *d, unsigned int lsc) ++{ ++ au_rw_write_lock_nested(&au_di(d)->di_rwsem, lsc); ++ if (d_really_is_positive(d)) ++ do_ii_write_lock(d_inode(d), lsc); ++} ++ ++void di_write_unlock(struct dentry *d) ++{ ++ au_dbg_verify_dinode(d); ++ if (d_really_is_positive(d)) ++ ii_write_unlock(d_inode(d)); ++ au_rw_write_unlock(&au_di(d)->di_rwsem); ++} ++ ++void di_write_lock2_child(struct dentry *d1, struct dentry *d2, int isdir) ++{ ++ AuDebugOn(d1 == d2 ++ || d_inode(d1) == d_inode(d2) ++ || d1->d_sb != d2->d_sb); ++ ++ if ((isdir && au_test_subdir(d1, d2)) ++ || d1 < d2) { ++ di_write_lock_child(d1); ++ di_write_lock_child2(d2); ++ } else { ++ di_write_lock_child(d2); ++ di_write_lock_child2(d1); ++ } ++} ++ ++void di_write_lock2_parent(struct dentry *d1, struct dentry *d2, int isdir) ++{ ++ AuDebugOn(d1 == d2 ++ || d_inode(d1) == d_inode(d2) ++ || d1->d_sb != d2->d_sb); ++ ++ if ((isdir && au_test_subdir(d1, d2)) ++ || d1 < d2) { ++ di_write_lock_parent(d1); ++ di_write_lock_parent2(d2); ++ } else { ++ di_write_lock_parent(d2); ++ di_write_lock_parent2(d1); ++ } ++} ++ ++void di_write_unlock2(struct dentry *d1, struct dentry *d2) ++{ ++ di_write_unlock(d1); ++ if (d_inode(d1) == d_inode(d2)) ++ au_rw_write_unlock(&au_di(d2)->di_rwsem); ++ else ++ di_write_unlock(d2); ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++struct dentry *au_h_dptr(struct dentry *dentry, aufs_bindex_t bindex) ++{ ++ struct dentry *d; ++ ++ DiMustAnyLock(dentry); ++ ++ if (au_dbtop(dentry) < 0 || bindex < au_dbtop(dentry)) ++ return NULL; ++ AuDebugOn(bindex < 0); ++ d = au_hdentry(au_di(dentry), bindex)->hd_dentry; ++ AuDebugOn(d && au_dcount(d) <= 0); ++ return d; ++} ++ ++/* ++ * extended version of au_h_dptr(). ++ * returns a hashed and positive (or linkable) h_dentry in bindex, NULL, or ++ * error. ++ */ ++struct dentry *au_h_d_alias(struct dentry *dentry, aufs_bindex_t bindex) ++{ ++ struct dentry *h_dentry; ++ struct inode *inode, *h_inode; ++ ++ AuDebugOn(d_really_is_negative(dentry)); ++ ++ h_dentry = NULL; ++ if (au_dbtop(dentry) <= bindex ++ && bindex <= au_dbbot(dentry)) ++ h_dentry = au_h_dptr(dentry, bindex); ++ if (h_dentry && !au_d_linkable(h_dentry)) { ++ dget(h_dentry); ++ goto out; /* success */ ++ } ++ ++ inode = d_inode(dentry); ++ AuDebugOn(bindex < au_ibtop(inode)); ++ AuDebugOn(au_ibbot(inode) < bindex); ++ h_inode = au_h_iptr(inode, bindex); ++ h_dentry = d_find_alias(h_inode); ++ if (h_dentry) { ++ if (!IS_ERR(h_dentry)) { ++ if (!au_d_linkable(h_dentry)) ++ goto out; /* success */ ++ dput(h_dentry); ++ } else ++ goto out; ++ } ++ ++ if (au_opt_test(au_mntflags(dentry->d_sb), PLINK)) { ++ h_dentry = au_plink_lkup(inode, bindex); ++ AuDebugOn(!h_dentry); ++ if (!IS_ERR(h_dentry)) { ++ if (!au_d_hashed_positive(h_dentry)) ++ goto out; /* success */ ++ dput(h_dentry); ++ h_dentry = NULL; ++ } ++ } ++ ++out: ++ AuDbgDentry(h_dentry); ++ return h_dentry; ++} ++ ++aufs_bindex_t au_dbtail(struct dentry *dentry) ++{ ++ aufs_bindex_t bbot, bwh; ++ ++ bbot = au_dbbot(dentry); ++ if (0 <= bbot) { ++ bwh = au_dbwh(dentry); ++ if (!bwh) ++ return bwh; ++ if (0 < bwh && bwh < bbot) ++ return bwh - 1; ++ } ++ return bbot; ++} ++ ++aufs_bindex_t au_dbtaildir(struct dentry *dentry) ++{ ++ aufs_bindex_t bbot, bopq; ++ ++ bbot = au_dbtail(dentry); ++ if (0 <= bbot) { ++ bopq = au_dbdiropq(dentry); ++ if (0 <= bopq && bopq < bbot) ++ bbot = bopq; ++ } ++ return bbot; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++void au_set_h_dptr(struct dentry *dentry, aufs_bindex_t bindex, ++ struct dentry *h_dentry) ++{ ++ struct au_dinfo *dinfo; ++ struct au_hdentry *hd; ++ struct au_branch *br; ++ ++ DiMustWriteLock(dentry); ++ ++ dinfo = au_di(dentry); ++ hd = au_hdentry(dinfo, bindex); ++ au_hdput(hd); ++ hd->hd_dentry = h_dentry; ++ if (h_dentry) { ++ br = au_sbr(dentry->d_sb, bindex); ++ hd->hd_id = br->br_id; ++ } ++} ++ ++int au_dbrange_test(struct dentry *dentry) ++{ ++ int err; ++ aufs_bindex_t btop, bbot; ++ ++ err = 0; ++ btop = au_dbtop(dentry); ++ bbot = au_dbbot(dentry); ++ if (btop >= 0) ++ AuDebugOn(bbot < 0 && btop > bbot); ++ else { ++ err = -EIO; ++ AuDebugOn(bbot >= 0); ++ } ++ ++ return err; ++} ++ ++int au_digen_test(struct dentry *dentry, unsigned int sigen) ++{ ++ int err; ++ ++ err = 0; ++ if (unlikely(au_digen(dentry) != sigen ++ || au_iigen_test(d_inode(dentry), sigen))) ++ err = -EIO; ++ ++ return err; ++} ++ ++void au_update_digen(struct dentry *dentry) ++{ ++ atomic_set(&au_di(dentry)->di_generation, au_sigen(dentry->d_sb)); ++ /* smp_mb(); */ /* atomic_set */ ++} ++ ++void au_update_dbrange(struct dentry *dentry, int do_put_zero) ++{ ++ struct au_dinfo *dinfo; ++ struct dentry *h_d; ++ struct au_hdentry *hdp; ++ aufs_bindex_t bindex, bbot; ++ ++ DiMustWriteLock(dentry); ++ ++ dinfo = au_di(dentry); ++ if (!dinfo || dinfo->di_btop < 0) ++ return; ++ ++ if (do_put_zero) { ++ bbot = dinfo->di_bbot; ++ bindex = dinfo->di_btop; ++ hdp = au_hdentry(dinfo, bindex); ++ for (; bindex <= bbot; bindex++, hdp++) { ++ h_d = hdp->hd_dentry; ++ if (h_d && d_is_negative(h_d)) ++ au_set_h_dptr(dentry, bindex, NULL); ++ } ++ } ++ ++ dinfo->di_btop = 0; ++ hdp = au_hdentry(dinfo, dinfo->di_btop); ++ for (; dinfo->di_btop <= dinfo->di_bbot; dinfo->di_btop++, hdp++) ++ if (hdp->hd_dentry) ++ break; ++ if (dinfo->di_btop > dinfo->di_bbot) { ++ dinfo->di_btop = -1; ++ dinfo->di_bbot = -1; ++ return; ++ } ++ ++ hdp = au_hdentry(dinfo, dinfo->di_bbot); ++ for (; dinfo->di_bbot >= 0; dinfo->di_bbot--, hdp--) ++ if (hdp->hd_dentry) ++ break; ++ AuDebugOn(dinfo->di_btop > dinfo->di_bbot || dinfo->di_bbot < 0); ++} ++ ++void au_update_dbtop(struct dentry *dentry) ++{ ++ aufs_bindex_t bindex, bbot; ++ struct dentry *h_dentry; ++ ++ bbot = au_dbbot(dentry); ++ for (bindex = au_dbtop(dentry); bindex <= bbot; bindex++) { ++ h_dentry = au_h_dptr(dentry, bindex); ++ if (!h_dentry) ++ continue; ++ if (d_is_positive(h_dentry)) { ++ au_set_dbtop(dentry, bindex); ++ return; ++ } ++ au_set_h_dptr(dentry, bindex, NULL); ++ } ++} ++ ++void au_update_dbbot(struct dentry *dentry) ++{ ++ aufs_bindex_t bindex, btop; ++ struct dentry *h_dentry; ++ ++ btop = au_dbtop(dentry); ++ for (bindex = au_dbbot(dentry); bindex >= btop; bindex--) { ++ h_dentry = au_h_dptr(dentry, bindex); ++ if (!h_dentry) ++ continue; ++ if (d_is_positive(h_dentry)) { ++ au_set_dbbot(dentry, bindex); ++ return; ++ } ++ au_set_h_dptr(dentry, bindex, NULL); ++ } ++} ++ ++int au_find_dbindex(struct dentry *dentry, struct dentry *h_dentry) ++{ ++ aufs_bindex_t bindex, bbot; ++ ++ bbot = au_dbbot(dentry); ++ for (bindex = au_dbtop(dentry); bindex <= bbot; bindex++) ++ if (au_h_dptr(dentry, bindex) == h_dentry) ++ return bindex; ++ return -1; ++} +diff -Naur linux-5.15/fs/aufs/dir.c aufs5-linux-aufs5.15/fs/aufs/dir.c +--- linux-5.15/fs/aufs/dir.c 1970-01-01 03:00:00.000000000 +0300 ++++ aufs5-linux-aufs5.15/fs/aufs/dir.c 2022-03-07 13:48:09.000000000 +0300 +@@ -0,0 +1,752 @@ ++// SPDX-License-Identifier: GPL-2.0 ++/* ++ * Copyright (C) 2005-2021 Junjiro R. Okajima ++ */ ++ ++/* ++ * directory operations ++ */ ++ ++#include ++#include ++#include "aufs.h" ++ ++void au_add_nlink(struct inode *dir, struct inode *h_dir) ++{ ++ unsigned int nlink; ++ ++ AuDebugOn(!S_ISDIR(dir->i_mode) || !S_ISDIR(h_dir->i_mode)); ++ ++ nlink = dir->i_nlink; ++ nlink += h_dir->i_nlink - 2; ++ if (h_dir->i_nlink < 2) ++ nlink += 2; ++ smp_mb(); /* for i_nlink */ ++ /* 0 can happen in revaliding */ ++ set_nlink(dir, nlink); ++} ++ ++void au_sub_nlink(struct inode *dir, struct inode *h_dir) ++{ ++ unsigned int nlink; ++ ++ AuDebugOn(!S_ISDIR(dir->i_mode) || !S_ISDIR(h_dir->i_mode)); ++ ++ nlink = dir->i_nlink; ++ nlink -= h_dir->i_nlink - 2; ++ if (h_dir->i_nlink < 2) ++ nlink -= 2; ++ smp_mb(); /* for i_nlink */ ++ /* nlink == 0 means the branch-fs is broken */ ++ set_nlink(dir, nlink); ++} ++ ++loff_t au_dir_size(struct file *file, struct dentry *dentry) ++{ ++ loff_t sz; ++ aufs_bindex_t bindex, bbot; ++ struct file *h_file; ++ struct dentry *h_dentry; ++ ++ sz = 0; ++ if (file) { ++ AuDebugOn(!d_is_dir(file->f_path.dentry)); ++ ++ bbot = au_fbbot_dir(file); ++ for (bindex = au_fbtop(file); ++ bindex <= bbot && sz < KMALLOC_MAX_SIZE; ++ bindex++) { ++ h_file = au_hf_dir(file, bindex); ++ if (h_file && file_inode(h_file)) ++ sz += vfsub_f_size_read(h_file); ++ } ++ } else { ++ AuDebugOn(!dentry); ++ AuDebugOn(!d_is_dir(dentry)); ++ ++ bbot = au_dbtaildir(dentry); ++ for (bindex = au_dbtop(dentry); ++ bindex <= bbot && sz < KMALLOC_MAX_SIZE; ++ bindex++) { ++ h_dentry = au_h_dptr(dentry, bindex); ++ if (h_dentry && d_is_positive(h_dentry)) ++ sz += i_size_read(d_inode(h_dentry)); ++ } ++ } ++ if (sz < KMALLOC_MAX_SIZE) ++ sz = roundup_pow_of_two(sz); ++ if (sz > KMALLOC_MAX_SIZE) ++ sz = KMALLOC_MAX_SIZE; ++ else if (sz < NAME_MAX) { ++ BUILD_BUG_ON(AUFS_RDBLK_DEF < NAME_MAX); ++ sz = AUFS_RDBLK_DEF; ++ } ++ return sz; ++} ++ ++struct au_dir_ts_arg { ++ struct dentry *dentry; ++ aufs_bindex_t brid; ++}; ++ ++static void au_do_dir_ts(void *arg) ++{ ++ struct au_dir_ts_arg *a = arg; ++ struct au_dtime dt; ++ struct path h_path; ++ struct inode *dir, *h_dir; ++ struct super_block *sb; ++ struct au_branch *br; ++ struct au_hinode *hdir; ++ int err; ++ aufs_bindex_t btop, bindex; ++ ++ sb = a->dentry->d_sb; ++ if (d_really_is_negative(a->dentry)) ++ goto out; ++ /* no dir->i_mutex lock */ ++ aufs_read_lock(a->dentry, AuLock_DW); /* noflush */ ++ ++ dir = d_inode(a->dentry); ++ btop = au_ibtop(dir); ++ bindex = au_br_index(sb, a->brid); ++ if (bindex < btop) ++ goto out_unlock; ++ ++ br = au_sbr(sb, bindex); ++ h_path.dentry = au_h_dptr(a->dentry, bindex); ++ if (!h_path.dentry) ++ goto out_unlock; ++ h_path.mnt = au_br_mnt(br); ++ au_dtime_store(&dt, a->dentry, &h_path); ++ ++ br = au_sbr(sb, btop); ++ if (!au_br_writable(br->br_perm)) ++ goto out_unlock; ++ h_path.dentry = au_h_dptr(a->dentry, btop); ++ h_path.mnt = au_br_mnt(br); ++ err = vfsub_mnt_want_write(h_path.mnt); ++ if (err) ++ goto out_unlock; ++ hdir = au_hi(dir, btop); ++ au_hn_inode_lock_nested(hdir, AuLsc_I_PARENT); ++ h_dir = au_h_iptr(dir, btop); ++ if (h_dir->i_nlink ++ && timespec64_compare(&h_dir->i_mtime, &dt.dt_mtime) < 0) { ++ dt.dt_h_path = h_path; ++ au_dtime_revert(&dt); ++ } ++ au_hn_inode_unlock(hdir); ++ vfsub_mnt_drop_write(h_path.mnt); ++ au_cpup_attr_timesizes(dir); ++ ++out_unlock: ++ aufs_read_unlock(a->dentry, AuLock_DW); ++out: ++ dput(a->dentry); ++ au_nwt_done(&au_sbi(sb)->si_nowait); ++ au_kfree_try_rcu(arg); ++} ++ ++void au_dir_ts(struct inode *dir, aufs_bindex_t bindex) ++{ ++ int perm, wkq_err; ++ aufs_bindex_t btop; ++ struct au_dir_ts_arg *arg; ++ struct dentry *dentry; ++ struct super_block *sb; ++ ++ IMustLock(dir); ++ ++ dentry = d_find_any_alias(dir); ++ AuDebugOn(!dentry); ++ sb = dentry->d_sb; ++ btop = au_ibtop(dir); ++ if (btop == bindex) { ++ au_cpup_attr_timesizes(dir); ++ goto out; ++ } ++ ++ perm = au_sbr_perm(sb, btop); ++ if (!au_br_writable(perm)) ++ goto out; ++ ++ arg = kmalloc(sizeof(*arg), GFP_NOFS); ++ if (!arg) ++ goto out; ++ ++ arg->dentry = dget(dentry); /* will be dput-ted by au_do_dir_ts() */ ++ arg->brid = au_sbr_id(sb, bindex); ++ wkq_err = au_wkq_nowait(au_do_dir_ts, arg, sb, /*flags*/0); ++ if (unlikely(wkq_err)) { ++ pr_err("wkq %d\n", wkq_err); ++ dput(dentry); ++ au_kfree_try_rcu(arg); ++ } ++ ++out: ++ dput(dentry); ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++static int reopen_dir(struct file *file) ++{ ++ int err; ++ unsigned int flags; ++ aufs_bindex_t bindex, btail, btop; ++ struct dentry *dentry, *h_dentry; ++ struct file *h_file; ++ ++ /* open all lower dirs */ ++ dentry = file->f_path.dentry; ++ btop = au_dbtop(dentry); ++ for (bindex = au_fbtop(file); bindex < btop; bindex++) ++ au_set_h_fptr(file, bindex, NULL); ++ au_set_fbtop(file, btop); ++ ++ btail = au_dbtaildir(dentry); ++ for (bindex = au_fbbot_dir(file); btail < bindex; bindex--) ++ au_set_h_fptr(file, bindex, NULL); ++ au_set_fbbot_dir(file, btail); ++ ++ flags = vfsub_file_flags(file); ++ for (bindex = btop; bindex <= btail; bindex++) { ++ h_dentry = au_h_dptr(dentry, bindex); ++ if (!h_dentry) ++ continue; ++ h_file = au_hf_dir(file, bindex); ++ if (h_file) ++ continue; ++ ++ h_file = au_h_open(dentry, bindex, flags, file, /*force_wr*/0); ++ err = PTR_ERR(h_file); ++ if (IS_ERR(h_file)) ++ goto out; /* close all? */ ++ au_set_h_fptr(file, bindex, h_file); ++ } ++ au_update_figen(file); ++ /* todo: necessary? */ ++ /* file->f_ra = h_file->f_ra; */ ++ err = 0; ++ ++out: ++ return err; ++} ++ ++static int do_open_dir(struct file *file, int flags, struct file *h_file) ++{ ++ int err; ++ aufs_bindex_t bindex, btail; ++ struct dentry *dentry, *h_dentry; ++ struct vfsmount *mnt; ++ ++ FiMustWriteLock(file); ++ AuDebugOn(h_file); ++ ++ err = 0; ++ mnt = file->f_path.mnt; ++ dentry = file->f_path.dentry; ++ file->f_version = inode_query_iversion(d_inode(dentry)); ++ bindex = au_dbtop(dentry); ++ au_set_fbtop(file, bindex); ++ btail = au_dbtaildir(dentry); ++ au_set_fbbot_dir(file, btail); ++ for (; !err && bindex <= btail; bindex++) { ++ h_dentry = au_h_dptr(dentry, bindex); ++ if (!h_dentry) ++ continue; ++ ++ err = vfsub_test_mntns(mnt, h_dentry->d_sb); ++ if (unlikely(err)) ++ break; ++ h_file = au_h_open(dentry, bindex, flags, file, /*force_wr*/0); ++ if (IS_ERR(h_file)) { ++ err = PTR_ERR(h_file); ++ break; ++ } ++ au_set_h_fptr(file, bindex, h_file); ++ } ++ au_update_figen(file); ++ /* todo: necessary? */ ++ /* file->f_ra = h_file->f_ra; */ ++ if (!err) ++ return 0; /* success */ ++ ++ /* close all */ ++ for (bindex = au_fbtop(file); bindex <= btail; bindex++) ++ au_set_h_fptr(file, bindex, NULL); ++ au_set_fbtop(file, -1); ++ au_set_fbbot_dir(file, -1); ++ ++ return err; ++} ++ ++static int aufs_open_dir(struct inode *inode __maybe_unused, ++ struct file *file) ++{ ++ int err; ++ struct super_block *sb; ++ struct au_fidir *fidir; ++ ++ err = -ENOMEM; ++ sb = file->f_path.dentry->d_sb; ++ si_read_lock(sb, AuLock_FLUSH); ++ fidir = au_fidir_alloc(sb); ++ if (fidir) { ++ struct au_do_open_args args = { ++ .open = do_open_dir, ++ .fidir = fidir ++ }; ++ err = au_do_open(file, &args); ++ if (unlikely(err)) ++ au_kfree_rcu(fidir); ++ } ++ si_read_unlock(sb); ++ return err; ++} ++ ++static int aufs_release_dir(struct inode *inode __maybe_unused, ++ struct file *file) ++{ ++ struct au_vdir *vdir_cache; ++ struct au_finfo *finfo; ++ struct au_fidir *fidir; ++ struct au_hfile *hf; ++ aufs_bindex_t bindex, bbot; ++ ++ finfo = au_fi(file); ++ fidir = finfo->fi_hdir; ++ if (fidir) { ++ au_hbl_del(&finfo->fi_hlist, ++ &au_sbi(file->f_path.dentry->d_sb)->si_files); ++ vdir_cache = fidir->fd_vdir_cache; /* lock-free */ ++ if (vdir_cache) ++ au_vdir_free(vdir_cache); ++ ++ bindex = finfo->fi_btop; ++ if (bindex >= 0) { ++ hf = fidir->fd_hfile + bindex; ++ /* ++ * calls fput() instead of filp_close(), ++ * since no dnotify or lock for the lower file. ++ */ ++ bbot = fidir->fd_bbot; ++ for (; bindex <= bbot; bindex++, hf++) ++ if (hf->hf_file) ++ au_hfput(hf, /*execed*/0); ++ } ++ au_kfree_rcu(fidir); ++ finfo->fi_hdir = NULL; ++ } ++ au_finfo_fin(file); ++ return 0; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++static int au_do_flush_dir(struct file *file, fl_owner_t id) ++{ ++ int err; ++ aufs_bindex_t bindex, bbot; ++ struct file *h_file; ++ ++ err = 0; ++ bbot = au_fbbot_dir(file); ++ for (bindex = au_fbtop(file); !err && bindex <= bbot; bindex++) { ++ h_file = au_hf_dir(file, bindex); ++ if (h_file) ++ err = vfsub_flush(h_file, id); ++ } ++ return err; ++} ++ ++static int aufs_flush_dir(struct file *file, fl_owner_t id) ++{ ++ return au_do_flush(file, id, au_do_flush_dir); ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++static int au_do_fsync_dir_no_file(struct dentry *dentry, int datasync) ++{ ++ int err; ++ aufs_bindex_t bbot, bindex; ++ struct inode *inode; ++ struct super_block *sb; ++ ++ err = 0; ++ sb = dentry->d_sb; ++ inode = d_inode(dentry); ++ IMustLock(inode); ++ bbot = au_dbbot(dentry); ++ for (bindex = au_dbtop(dentry); !err && bindex <= bbot; bindex++) { ++ struct path h_path; ++ ++ if (au_test_ro(sb, bindex, inode)) ++ continue; ++ h_path.dentry = au_h_dptr(dentry, bindex); ++ if (!h_path.dentry) ++ continue; ++ ++ h_path.mnt = au_sbr_mnt(sb, bindex); ++ err = vfsub_fsync(NULL, &h_path, datasync); ++ } ++ ++ return err; ++} ++ ++static int au_do_fsync_dir(struct file *file, int datasync) ++{ ++ int err; ++ aufs_bindex_t bbot, bindex; ++ struct file *h_file; ++ struct super_block *sb; ++ struct inode *inode; ++ ++ err = au_reval_and_lock_fdi(file, reopen_dir, /*wlock*/1, /*fi_lsc*/0); ++ if (unlikely(err)) ++ goto out; ++ ++ inode = file_inode(file); ++ sb = inode->i_sb; ++ bbot = au_fbbot_dir(file); ++ for (bindex = au_fbtop(file); !err && bindex <= bbot; bindex++) { ++ h_file = au_hf_dir(file, bindex); ++ if (!h_file || au_test_ro(sb, bindex, inode)) ++ continue; ++ ++ err = vfsub_fsync(h_file, &h_file->f_path, datasync); ++ } ++ ++out: ++ return err; ++} ++ ++/* ++ * @file may be NULL ++ */ ++static int aufs_fsync_dir(struct file *file, loff_t start, loff_t end, ++ int datasync) ++{ ++ int err; ++ struct dentry *dentry; ++ struct inode *inode; ++ struct super_block *sb; ++ ++ err = 0; ++ dentry = file->f_path.dentry; ++ inode = d_inode(dentry); ++ inode_lock(inode); ++ sb = dentry->d_sb; ++ si_noflush_read_lock(sb); ++ if (file) ++ err = au_do_fsync_dir(file, datasync); ++ else { ++ di_write_lock_child(dentry); ++ err = au_do_fsync_dir_no_file(dentry, datasync); ++ } ++ au_cpup_attr_timesizes(inode); ++ di_write_unlock(dentry); ++ if (file) ++ fi_write_unlock(file); ++ ++ si_read_unlock(sb); ++ inode_unlock(inode); ++ return err; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++static int aufs_iterate_shared(struct file *file, struct dir_context *ctx) ++{ ++ int err; ++ struct dentry *dentry; ++ struct inode *inode, *h_inode; ++ struct super_block *sb; ++ ++ AuDbg("%pD, ctx{%ps, %llu}\n", file, ctx->actor, ctx->pos); ++ ++ dentry = file->f_path.dentry; ++ inode = d_inode(dentry); ++ IMustLock(inode); ++ ++ sb = dentry->d_sb; ++ si_read_lock(sb, AuLock_FLUSH); ++ err = au_reval_and_lock_fdi(file, reopen_dir, /*wlock*/1, /*fi_lsc*/0); ++ if (unlikely(err)) ++ goto out; ++ err = au_alive_dir(dentry); ++ if (!err) ++ err = au_vdir_init(file); ++ di_downgrade_lock(dentry, AuLock_IR); ++ if (unlikely(err)) ++ goto out_unlock; ++ ++ h_inode = au_h_iptr(inode, au_ibtop(inode)); ++ if (!au_test_nfsd()) { ++ err = au_vdir_fill_de(file, ctx); ++ fsstack_copy_attr_atime(inode, h_inode); ++ } else { ++ /* ++ * nfsd filldir may call lookup_one_len(), vfs_getattr(), ++ * encode_fh() and others. ++ */ ++ atomic_inc(&h_inode->i_count); ++ di_read_unlock(dentry, AuLock_IR); ++ si_read_unlock(sb); ++ err = au_vdir_fill_de(file, ctx); ++ fsstack_copy_attr_atime(inode, h_inode); ++ fi_write_unlock(file); ++ iput(h_inode); ++ ++ AuTraceErr(err); ++ return err; ++ } ++ ++out_unlock: ++ di_read_unlock(dentry, AuLock_IR); ++ fi_write_unlock(file); ++out: ++ si_read_unlock(sb); ++ return err; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++#define AuTestEmpty_WHONLY 1 ++#define AuTestEmpty_CALLED (1 << 1) ++#define AuTestEmpty_SHWH (1 << 2) ++#define au_ftest_testempty(flags, name) ((flags) & AuTestEmpty_##name) ++#define au_fset_testempty(flags, name) \ ++ do { (flags) |= AuTestEmpty_##name; } while (0) ++#define au_fclr_testempty(flags, name) \ ++ do { (flags) &= ~AuTestEmpty_##name; } while (0) ++ ++#ifndef CONFIG_AUFS_SHWH ++#undef AuTestEmpty_SHWH ++#define AuTestEmpty_SHWH 0 ++#endif ++ ++struct test_empty_arg { ++ struct dir_context ctx; ++ struct au_nhash *whlist; ++ unsigned int flags; ++ int err; ++ aufs_bindex_t bindex; ++}; ++ ++static int test_empty_cb(struct dir_context *ctx, const char *__name, ++ int namelen, loff_t offset __maybe_unused, u64 ino, ++ unsigned int d_type) ++{ ++ struct test_empty_arg *arg = container_of(ctx, struct test_empty_arg, ++ ctx); ++ char *name = (void *)__name; ++ ++ arg->err = 0; ++ au_fset_testempty(arg->flags, CALLED); ++ /* smp_mb(); */ ++ if (name[0] == '.' ++ && (namelen == 1 || (name[1] == '.' && namelen == 2))) ++ goto out; /* success */ ++ ++ if (namelen <= AUFS_WH_PFX_LEN ++ || memcmp(name, AUFS_WH_PFX, AUFS_WH_PFX_LEN)) { ++ if (au_ftest_testempty(arg->flags, WHONLY) ++ && !au_nhash_test_known_wh(arg->whlist, name, namelen)) ++ arg->err = -ENOTEMPTY; ++ goto out; ++ } ++ ++ name += AUFS_WH_PFX_LEN; ++ namelen -= AUFS_WH_PFX_LEN; ++ if (!au_nhash_test_known_wh(arg->whlist, name, namelen)) ++ arg->err = au_nhash_append_wh ++ (arg->whlist, name, namelen, ino, d_type, arg->bindex, ++ au_ftest_testempty(arg->flags, SHWH)); ++ ++out: ++ /* smp_mb(); */ ++ AuTraceErr(arg->err); ++ return arg->err; ++} ++ ++static int do_test_empty(struct dentry *dentry, struct test_empty_arg *arg) ++{ ++ int err; ++ struct file *h_file; ++ struct au_branch *br; ++ ++ h_file = au_h_open(dentry, arg->bindex, ++ O_RDONLY | O_NONBLOCK | O_DIRECTORY | O_LARGEFILE, ++ /*file*/NULL, /*force_wr*/0); ++ err = PTR_ERR(h_file); ++ if (IS_ERR(h_file)) ++ goto out; ++ ++ err = 0; ++ if (!au_opt_test(au_mntflags(dentry->d_sb), UDBA_NONE) ++ && !file_inode(h_file)->i_nlink) ++ goto out_put; ++ ++ do { ++ arg->err = 0; ++ au_fclr_testempty(arg->flags, CALLED); ++ /* smp_mb(); */ ++ err = vfsub_iterate_dir(h_file, &arg->ctx); ++ if (err >= 0) ++ err = arg->err; ++ } while (!err && au_ftest_testempty(arg->flags, CALLED)); ++ ++out_put: ++ fput(h_file); ++ br = au_sbr(dentry->d_sb, arg->bindex); ++ au_lcnt_dec(&br->br_nfiles); ++out: ++ return err; ++} ++ ++struct do_test_empty_args { ++ int *errp; ++ struct dentry *dentry; ++ struct test_empty_arg *arg; ++}; ++ ++static void call_do_test_empty(void *args) ++{ ++ struct do_test_empty_args *a = args; ++ *a->errp = do_test_empty(a->dentry, a->arg); ++} ++ ++static int sio_test_empty(struct dentry *dentry, struct test_empty_arg *arg) ++{ ++ int err, wkq_err; ++ struct dentry *h_dentry; ++ struct inode *h_inode; ++ struct user_namespace *h_userns; ++ ++ h_userns = au_sbr_userns(dentry->d_sb, arg->bindex); ++ h_dentry = au_h_dptr(dentry, arg->bindex); ++ h_inode = d_inode(h_dentry); ++ /* todo: i_mode changes anytime? */ ++ inode_lock_shared_nested(h_inode, AuLsc_I_CHILD); ++ err = au_test_h_perm_sio(h_userns, h_inode, MAY_EXEC | MAY_READ); ++ inode_unlock_shared(h_inode); ++ if (!err) ++ err = do_test_empty(dentry, arg); ++ else { ++ struct do_test_empty_args args = { ++ .errp = &err, ++ .dentry = dentry, ++ .arg = arg ++ }; ++ unsigned int flags = arg->flags; ++ ++ wkq_err = au_wkq_wait(call_do_test_empty, &args); ++ if (unlikely(wkq_err)) ++ err = wkq_err; ++ arg->flags = flags; ++ } ++ ++ return err; ++} ++ ++int au_test_empty_lower(struct dentry *dentry) ++{ ++ int err; ++ unsigned int rdhash; ++ aufs_bindex_t bindex, btop, btail; ++ struct au_nhash whlist; ++ struct test_empty_arg arg = { ++ .ctx = { ++ .actor = test_empty_cb ++ } ++ }; ++ int (*test_empty)(struct dentry *dentry, struct test_empty_arg *arg); ++ ++ SiMustAnyLock(dentry->d_sb); ++ ++ rdhash = au_sbi(dentry->d_sb)->si_rdhash; ++ if (!rdhash) ++ rdhash = au_rdhash_est(au_dir_size(/*file*/NULL, dentry)); ++ err = au_nhash_alloc(&whlist, rdhash, GFP_NOFS); ++ if (unlikely(err)) ++ goto out; ++ ++ arg.flags = 0; ++ arg.whlist = &whlist; ++ btop = au_dbtop(dentry); ++ if (au_opt_test(au_mntflags(dentry->d_sb), SHWH)) ++ au_fset_testempty(arg.flags, SHWH); ++ test_empty = do_test_empty; ++ if (au_opt_test(au_mntflags(dentry->d_sb), DIRPERM1)) ++ test_empty = sio_test_empty; ++ arg.bindex = btop; ++ err = test_empty(dentry, &arg); ++ if (unlikely(err)) ++ goto out_whlist; ++ ++ au_fset_testempty(arg.flags, WHONLY); ++ btail = au_dbtaildir(dentry); ++ for (bindex = btop + 1; !err && bindex <= btail; bindex++) { ++ struct dentry *h_dentry; ++ ++ h_dentry = au_h_dptr(dentry, bindex); ++ if (h_dentry && d_is_positive(h_dentry)) { ++ arg.bindex = bindex; ++ err = test_empty(dentry, &arg); ++ } ++ } ++ ++out_whlist: ++ au_nhash_wh_free(&whlist); ++out: ++ return err; ++} ++ ++int au_test_empty(struct dentry *dentry, struct au_nhash *whlist) ++{ ++ int err; ++ struct test_empty_arg arg = { ++ .ctx = { ++ .actor = test_empty_cb ++ } ++ }; ++ aufs_bindex_t bindex, btail; ++ ++ err = 0; ++ arg.whlist = whlist; ++ arg.flags = AuTestEmpty_WHONLY; ++ if (au_opt_test(au_mntflags(dentry->d_sb), SHWH)) ++ au_fset_testempty(arg.flags, SHWH); ++ btail = au_dbtaildir(dentry); ++ for (bindex = au_dbtop(dentry); !err && bindex <= btail; bindex++) { ++ struct dentry *h_dentry; ++ ++ h_dentry = au_h_dptr(dentry, bindex); ++ if (h_dentry && d_is_positive(h_dentry)) { ++ arg.bindex = bindex; ++ err = sio_test_empty(dentry, &arg); ++ } ++ } ++ ++ return err; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++const struct file_operations aufs_dir_fop = { ++ .owner = THIS_MODULE, ++ .llseek = default_llseek, ++ .read = generic_read_dir, ++ .iterate_shared = aufs_iterate_shared, ++ .unlocked_ioctl = aufs_ioctl_dir, ++#ifdef CONFIG_COMPAT ++ .compat_ioctl = aufs_compat_ioctl_dir, ++#endif ++ .open = aufs_open_dir, ++ .release = aufs_release_dir, ++ .flush = aufs_flush_dir, ++ .fsync = aufs_fsync_dir ++}; +diff -Naur linux-5.15/fs/aufs/dir.h aufs5-linux-aufs5.15/fs/aufs/dir.h +--- linux-5.15/fs/aufs/dir.h 1970-01-01 03:00:00.000000000 +0300 ++++ aufs5-linux-aufs5.15/fs/aufs/dir.h 2022-03-07 13:48:09.000000000 +0300 +@@ -0,0 +1,121 @@ ++/* SPDX-License-Identifier: GPL-2.0 */ ++/* ++ * Copyright (C) 2005-2021 Junjiro R. Okajima ++ */ ++ ++/* ++ * directory operations ++ */ ++ ++#ifndef __AUFS_DIR_H__ ++#define __AUFS_DIR_H__ ++ ++#ifdef __KERNEL__ ++ ++#include ++ ++/* ---------------------------------------------------------------------- */ ++ ++/* need to be faster and smaller */ ++ ++struct au_nhash { ++ unsigned int nh_num; ++ struct hlist_head *nh_head; ++}; ++ ++struct au_vdir_destr { ++ unsigned char len; ++ unsigned char name[]; ++} __packed; ++ ++struct au_vdir_dehstr { ++ struct hlist_node hash; ++ struct au_vdir_destr *str; ++ struct rcu_head rcu; ++} ____cacheline_aligned_in_smp; ++ ++struct au_vdir_de { ++ ino_t de_ino; ++ unsigned char de_type; ++ /* caution: packed */ ++ struct au_vdir_destr de_str; ++} __packed; ++ ++struct au_vdir_wh { ++ struct hlist_node wh_hash; ++#ifdef CONFIG_AUFS_SHWH ++ ino_t wh_ino; ++ aufs_bindex_t wh_bindex; ++ unsigned char wh_type; ++#else ++ aufs_bindex_t wh_bindex; ++#endif ++ /* caution: packed */ ++ struct au_vdir_destr wh_str; ++} __packed; ++ ++union au_vdir_deblk_p { ++ unsigned char *deblk; ++ struct au_vdir_de *de; ++}; ++ ++struct au_vdir { ++ unsigned char **vd_deblk; ++ unsigned long vd_nblk; ++ struct { ++ unsigned long ul; ++ union au_vdir_deblk_p p; ++ } vd_last; ++ ++ u64 vd_version; ++ unsigned int vd_deblk_sz; ++ unsigned long vd_jiffy; ++ struct rcu_head rcu; ++} ____cacheline_aligned_in_smp; ++ ++/* ---------------------------------------------------------------------- */ ++ ++/* dir.c */ ++extern const struct file_operations aufs_dir_fop; ++void au_add_nlink(struct inode *dir, struct inode *h_dir); ++void au_sub_nlink(struct inode *dir, struct inode *h_dir); ++loff_t au_dir_size(struct file *file, struct dentry *dentry); ++void au_dir_ts(struct inode *dir, aufs_bindex_t bsrc); ++int au_test_empty_lower(struct dentry *dentry); ++int au_test_empty(struct dentry *dentry, struct au_nhash *whlist); ++ ++/* vdir.c */ ++unsigned int au_rdhash_est(loff_t sz); ++int au_nhash_alloc(struct au_nhash *nhash, unsigned int num_hash, gfp_t gfp); ++void au_nhash_wh_free(struct au_nhash *whlist); ++int au_nhash_test_longer_wh(struct au_nhash *whlist, aufs_bindex_t btgt, ++ int limit); ++int au_nhash_test_known_wh(struct au_nhash *whlist, char *name, int nlen); ++int au_nhash_append_wh(struct au_nhash *whlist, char *name, int nlen, ino_t ino, ++ unsigned int d_type, aufs_bindex_t bindex, ++ unsigned char shwh); ++void au_vdir_free(struct au_vdir *vdir); ++int au_vdir_init(struct file *file); ++int au_vdir_fill_de(struct file *file, struct dir_context *ctx); ++ ++/* ioctl.c */ ++long aufs_ioctl_dir(struct file *file, unsigned int cmd, unsigned long arg); ++ ++#ifdef CONFIG_AUFS_RDU ++/* rdu.c */ ++long au_rdu_ioctl(struct file *file, unsigned int cmd, unsigned long arg); ++#ifdef CONFIG_COMPAT ++long au_rdu_compat_ioctl(struct file *file, unsigned int cmd, ++ unsigned long arg); ++#endif ++#else ++AuStub(long, au_rdu_ioctl, return -EINVAL, struct file *file, ++ unsigned int cmd, unsigned long arg) ++#ifdef CONFIG_COMPAT ++AuStub(long, au_rdu_compat_ioctl, return -EINVAL, struct file *file, ++ unsigned int cmd, unsigned long arg) ++#endif ++#endif ++ ++#endif /* __KERNEL__ */ ++#endif /* __AUFS_DIR_H__ */ +diff -Naur linux-5.15/fs/aufs/dirren.c aufs5-linux-aufs5.15/fs/aufs/dirren.c +--- linux-5.15/fs/aufs/dirren.c 1970-01-01 03:00:00.000000000 +0300 ++++ aufs5-linux-aufs5.15/fs/aufs/dirren.c 2022-03-07 13:48:09.000000000 +0300 +@@ -0,0 +1,1302 @@ ++// SPDX-License-Identifier: GPL-2.0 ++/* ++ * Copyright (C) 2017-2021 Junjiro R. Okajima ++ */ ++ ++/* ++ * special handling in renaming a directory ++ * in order to support looking-up the before-renamed name on the lower readonly ++ * branches ++ */ ++ ++#include ++#include "aufs.h" ++ ++static void au_dr_hino_del(struct au_dr_br *dr, struct au_dr_hino *ent) ++{ ++ int idx; ++ ++ idx = au_dr_ihash(ent->dr_h_ino); ++ au_hbl_del(&ent->dr_hnode, dr->dr_h_ino + idx); ++} ++ ++static int au_dr_hino_test_empty(struct au_dr_br *dr) ++{ ++ int ret, i; ++ struct hlist_bl_head *hbl; ++ ++ ret = 1; ++ for (i = 0; ret && i < AuDirren_NHASH; i++) { ++ hbl = dr->dr_h_ino + i; ++ hlist_bl_lock(hbl); ++ ret &= hlist_bl_empty(hbl); ++ hlist_bl_unlock(hbl); ++ } ++ ++ return ret; ++} ++ ++static struct au_dr_hino *au_dr_hino_find(struct au_dr_br *dr, ino_t ino) ++{ ++ struct au_dr_hino *found, *ent; ++ struct hlist_bl_head *hbl; ++ struct hlist_bl_node *pos; ++ int idx; ++ ++ found = NULL; ++ idx = au_dr_ihash(ino); ++ hbl = dr->dr_h_ino + idx; ++ hlist_bl_lock(hbl); ++ hlist_bl_for_each_entry(ent, pos, hbl, dr_hnode) ++ if (ent->dr_h_ino == ino) { ++ found = ent; ++ break; ++ } ++ hlist_bl_unlock(hbl); ++ ++ return found; ++} ++ ++int au_dr_hino_test_add(struct au_dr_br *dr, ino_t ino, ++ struct au_dr_hino *add_ent) ++{ ++ int found, idx; ++ struct hlist_bl_head *hbl; ++ struct hlist_bl_node *pos; ++ struct au_dr_hino *ent; ++ ++ found = 0; ++ idx = au_dr_ihash(ino); ++ hbl = dr->dr_h_ino + idx; ++#if 0 /* debug print */ ++ { ++ struct hlist_bl_node *tmp; ++ ++ hlist_bl_for_each_entry_safe(ent, pos, tmp, hbl, dr_hnode) ++ AuDbg("hi%llu\n", (unsigned long long)ent->dr_h_ino); ++ } ++#endif ++ hlist_bl_lock(hbl); ++ hlist_bl_for_each_entry(ent, pos, hbl, dr_hnode) ++ if (ent->dr_h_ino == ino) { ++ found = 1; ++ break; ++ } ++ if (!found && add_ent) ++ hlist_bl_add_head(&add_ent->dr_hnode, hbl); ++ hlist_bl_unlock(hbl); ++ ++ if (!found && add_ent) ++ AuDbg("i%llu added\n", (unsigned long long)add_ent->dr_h_ino); ++ ++ return found; ++} ++ ++void au_dr_hino_free(struct au_dr_br *dr) ++{ ++ int i; ++ struct hlist_bl_head *hbl; ++ struct hlist_bl_node *pos, *tmp; ++ struct au_dr_hino *ent; ++ ++ /* SiMustWriteLock(sb); */ ++ ++ for (i = 0; i < AuDirren_NHASH; i++) { ++ hbl = dr->dr_h_ino + i; ++ /* no spinlock since sbinfo must be write-locked */ ++ hlist_bl_for_each_entry_safe(ent, pos, tmp, hbl, dr_hnode) ++ au_kfree_rcu(ent); ++ INIT_HLIST_BL_HEAD(hbl); ++ } ++} ++ ++/* returns the number of inodes or an error */ ++static int au_dr_hino_store(struct super_block *sb, struct au_branch *br, ++ struct file *hinofile) ++{ ++ int err, i; ++ ssize_t ssz; ++ loff_t pos, oldsize; ++ __be64 u64; ++ struct inode *hinoinode; ++ struct hlist_bl_head *hbl; ++ struct hlist_bl_node *n1, *n2; ++ struct au_dr_hino *ent; ++ ++ SiMustWriteLock(sb); ++ AuDebugOn(!au_br_writable(br->br_perm)); ++ ++ hinoinode = file_inode(hinofile); ++ oldsize = i_size_read(hinoinode); ++ ++ err = 0; ++ pos = 0; ++ hbl = br->br_dirren.dr_h_ino; ++ for (i = 0; !err && i < AuDirren_NHASH; i++, hbl++) { ++ /* no bit-lock since sbinfo must be write-locked */ ++ hlist_bl_for_each_entry_safe(ent, n1, n2, hbl, dr_hnode) { ++ AuDbg("hi%llu, %pD2\n", ++ (unsigned long long)ent->dr_h_ino, hinofile); ++ u64 = cpu_to_be64(ent->dr_h_ino); ++ ssz = vfsub_write_k(hinofile, &u64, sizeof(u64), &pos); ++ if (ssz == sizeof(u64)) ++ continue; ++ ++ /* write error */ ++ pr_err("ssz %zd, %pD2\n", ssz, hinofile); ++ err = -ENOSPC; ++ if (ssz < 0) ++ err = ssz; ++ break; ++ } ++ } ++ /* regardless the error */ ++ if (pos < oldsize) { ++ err = vfsub_trunc(&hinofile->f_path, pos, /*attr*/0, hinofile); ++ AuTraceErr(err); ++ } ++ ++ AuTraceErr(err); ++ return err; ++} ++ ++static int au_dr_hino_load(struct au_dr_br *dr, struct file *hinofile) ++{ ++ int err, hidx; ++ ssize_t ssz; ++ size_t sz, n; ++ loff_t pos; ++ uint64_t u64; ++ struct au_dr_hino *ent; ++ struct inode *hinoinode; ++ struct hlist_bl_head *hbl; ++ ++ err = 0; ++ pos = 0; ++ hbl = dr->dr_h_ino; ++ hinoinode = file_inode(hinofile); ++ sz = i_size_read(hinoinode); ++ AuDebugOn(sz % sizeof(u64)); ++ n = sz / sizeof(u64); ++ while (n--) { ++ ssz = vfsub_read_k(hinofile, &u64, sizeof(u64), &pos); ++ if (unlikely(ssz != sizeof(u64))) { ++ pr_err("ssz %zd, %pD2\n", ssz, hinofile); ++ err = -EINVAL; ++ if (ssz < 0) ++ err = ssz; ++ goto out_free; ++ } ++ ++ ent = kmalloc(sizeof(*ent), GFP_NOFS); ++ if (!ent) { ++ err = -ENOMEM; ++ AuTraceErr(err); ++ goto out_free; ++ } ++ ent->dr_h_ino = be64_to_cpu((__force __be64)u64); ++ AuDbg("hi%llu, %pD2\n", ++ (unsigned long long)ent->dr_h_ino, hinofile); ++ hidx = au_dr_ihash(ent->dr_h_ino); ++ au_hbl_add(&ent->dr_hnode, hbl + hidx); ++ } ++ goto out; /* success */ ++ ++out_free: ++ au_dr_hino_free(dr); ++out: ++ AuTraceErr(err); ++ return err; ++} ++ ++/* ++ * @bindex/@br is a switch to distinguish whether suspending hnotify or not. ++ * @path is a switch to distinguish load and store. ++ */ ++static int au_dr_hino(struct super_block *sb, aufs_bindex_t bindex, ++ struct au_branch *br, const struct path *path) ++{ ++ int err, flags; ++ unsigned char load, suspend; ++ struct file *hinofile; ++ struct au_hinode *hdir; ++ struct inode *dir, *delegated; ++ struct path hinopath; ++ struct qstr hinoname = QSTR_INIT(AUFS_WH_DR_BRHINO, ++ sizeof(AUFS_WH_DR_BRHINO) - 1); ++ ++ AuDebugOn(bindex < 0 && !br); ++ AuDebugOn(bindex >= 0 && br); ++ ++ err = -EINVAL; ++ suspend = !br; ++ if (suspend) ++ br = au_sbr(sb, bindex); ++ load = !!path; ++ if (!load) { ++ path = &br->br_path; ++ AuDebugOn(!au_br_writable(br->br_perm)); ++ if (unlikely(!au_br_writable(br->br_perm))) ++ goto out; ++ } ++ ++ hdir = NULL; ++ if (suspend) { ++ dir = d_inode(sb->s_root); ++ hdir = au_hinode(au_ii(dir), bindex); ++ dir = hdir->hi_inode; ++ au_hn_inode_lock_nested(hdir, AuLsc_I_CHILD); ++ } else { ++ dir = d_inode(path->dentry); ++ inode_lock_nested(dir, AuLsc_I_CHILD); ++ } ++ hinopath.mnt = path->mnt; ++ hinopath.dentry = vfsub_lkup_one(&hinoname, (struct path *)path); ++ err = PTR_ERR(hinopath.dentry); ++ if (IS_ERR(hinopath.dentry)) ++ goto out_unlock; ++ ++ err = 0; ++ flags = O_RDONLY; ++ if (load) { ++ if (d_is_negative(hinopath.dentry)) ++ goto out_dput; /* success */ ++ } else { ++ if (au_dr_hino_test_empty(&br->br_dirren)) { ++ if (d_is_positive(hinopath.dentry)) { ++ delegated = NULL; ++ err = vfsub_unlink(dir, &hinopath, &delegated, ++ /*force*/0); ++ AuTraceErr(err); ++ if (unlikely(err)) ++ pr_err("ignored err %d, %pd2\n", ++ err, hinopath.dentry); ++ if (unlikely(err == -EWOULDBLOCK)) ++ iput(delegated); ++ err = 0; ++ } ++ goto out_dput; ++ } else if (!d_is_positive(hinopath.dentry)) { ++ err = vfsub_create(dir, &hinopath, 0600, ++ /*want_excl*/false); ++ AuTraceErr(err); ++ if (unlikely(err)) ++ goto out_dput; ++ } ++ flags = O_WRONLY; ++ } ++ hinofile = vfsub_dentry_open(&hinopath, flags); ++ if (suspend) ++ au_hn_inode_unlock(hdir); ++ else ++ inode_unlock(dir); ++ dput(hinopath.dentry); ++ AuTraceErrPtr(hinofile); ++ if (IS_ERR(hinofile)) { ++ err = PTR_ERR(hinofile); ++ goto out; ++ } ++ ++ if (load) ++ err = au_dr_hino_load(&br->br_dirren, hinofile); ++ else ++ err = au_dr_hino_store(sb, br, hinofile); ++ fput(hinofile); ++ goto out; ++ ++out_dput: ++ dput(hinopath.dentry); ++out_unlock: ++ if (suspend) ++ au_hn_inode_unlock(hdir); ++ else ++ inode_unlock(dir); ++out: ++ AuTraceErr(err); ++ return err; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++static int au_dr_brid_init(struct au_dr_brid *brid, const struct path *path) ++{ ++ int err; ++ struct kstatfs kstfs; ++ dev_t dev; ++ struct dentry *dentry; ++ struct super_block *sb; ++ ++ err = vfs_statfs((void *)path, &kstfs); ++ AuTraceErr(err); ++ if (unlikely(err)) ++ goto out; ++ ++ /* todo: support for UUID */ ++ ++ if (kstfs.f_fsid.val[0] || kstfs.f_fsid.val[1]) { ++ brid->type = AuBrid_FSID; ++ brid->fsid = kstfs.f_fsid; ++ } else { ++ dentry = path->dentry; ++ sb = dentry->d_sb; ++ dev = sb->s_dev; ++ if (dev) { ++ brid->type = AuBrid_DEV; ++ brid->dev = dev; ++ } ++ } ++ ++out: ++ return err; ++} ++ ++int au_dr_br_init(struct super_block *sb, struct au_branch *br, ++ const struct path *path) ++{ ++ int err, i; ++ struct au_dr_br *dr; ++ struct hlist_bl_head *hbl; ++ ++ dr = &br->br_dirren; ++ hbl = dr->dr_h_ino; ++ for (i = 0; i < AuDirren_NHASH; i++, hbl++) ++ INIT_HLIST_BL_HEAD(hbl); ++ ++ err = au_dr_brid_init(&dr->dr_brid, path); ++ if (unlikely(err)) ++ goto out; ++ ++ if (au_opt_test(au_mntflags(sb), DIRREN)) ++ err = au_dr_hino(sb, /*bindex*/-1, br, path); ++ ++out: ++ AuTraceErr(err); ++ return err; ++} ++ ++int au_dr_br_fin(struct super_block *sb, struct au_branch *br) ++{ ++ int err; ++ ++ err = 0; ++ if (au_br_writable(br->br_perm)) ++ err = au_dr_hino(sb, /*bindex*/-1, br, /*path*/NULL); ++ if (!err) ++ au_dr_hino_free(&br->br_dirren); ++ ++ return err; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++static int au_brid_str(struct au_dr_brid *brid, struct inode *h_inode, ++ char *buf, size_t sz) ++{ ++ int err; ++ unsigned int major, minor; ++ char *p; ++ ++ p = buf; ++ err = snprintf(p, sz, "%d_", brid->type); ++ AuDebugOn(err > sz); ++ p += err; ++ sz -= err; ++ switch (brid->type) { ++ case AuBrid_Unset: ++ return -EINVAL; ++ case AuBrid_UUID: ++ err = snprintf(p, sz, "%pU", brid->uuid.b); ++ break; ++ case AuBrid_FSID: ++ err = snprintf(p, sz, "%08x-%08x", ++ brid->fsid.val[0], brid->fsid.val[1]); ++ break; ++ case AuBrid_DEV: ++ major = MAJOR(brid->dev); ++ minor = MINOR(brid->dev); ++ if (major <= 0xff && minor <= 0xff) ++ err = snprintf(p, sz, "%02x%02x", major, minor); ++ else ++ err = snprintf(p, sz, "%03x:%05x", major, minor); ++ break; ++ } ++ AuDebugOn(err > sz); ++ p += err; ++ sz -= err; ++ err = snprintf(p, sz, "_%llu", (unsigned long long)h_inode->i_ino); ++ AuDebugOn(err > sz); ++ p += err; ++ sz -= err; ++ ++ return p - buf; ++} ++ ++static int au_drinfo_name(struct au_branch *br, char *name, int len) ++{ ++ int rlen; ++ struct dentry *br_dentry; ++ struct inode *br_inode; ++ ++ br_dentry = au_br_dentry(br); ++ br_inode = d_inode(br_dentry); ++ rlen = au_brid_str(&br->br_dirren.dr_brid, br_inode, name, len); ++ AuDebugOn(rlen >= AUFS_DIRREN_ENV_VAL_SZ); ++ AuDebugOn(rlen > len); ++ ++ return rlen; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++/* ++ * from the given @h_dentry, construct drinfo at @*fdata. ++ * when the size of @*fdata is not enough, reallocate and return new @fdata and ++ * @allocated. ++ */ ++static int au_drinfo_construct(struct au_drinfo_fdata **fdata, ++ struct dentry *h_dentry, ++ unsigned char *allocated) ++{ ++ int err, v; ++ struct au_drinfo_fdata *f, *p; ++ struct au_drinfo *drinfo; ++ struct inode *h_inode; ++ struct qstr *qname; ++ ++ err = 0; ++ f = *fdata; ++ h_inode = d_inode(h_dentry); ++ qname = &h_dentry->d_name; ++ drinfo = &f->drinfo; ++ drinfo->ino = (__force uint64_t)cpu_to_be64(h_inode->i_ino); ++ drinfo->oldnamelen = qname->len; ++ if (*allocated < sizeof(*f) + qname->len) { ++ v = roundup_pow_of_two(*allocated + qname->len); ++ p = au_krealloc(f, v, GFP_NOFS, /*may_shrink*/0); ++ if (unlikely(!p)) { ++ err = -ENOMEM; ++ AuTraceErr(err); ++ goto out; ++ } ++ f = p; ++ *fdata = f; ++ *allocated = v; ++ drinfo = &f->drinfo; ++ } ++ memcpy(drinfo->oldname, qname->name, qname->len); ++ AuDbg("i%llu, %.*s\n", ++ be64_to_cpu((__force __be64)drinfo->ino), drinfo->oldnamelen, ++ drinfo->oldname); ++ ++out: ++ AuTraceErr(err); ++ return err; ++} ++ ++/* callers have to free the return value */ ++static struct au_drinfo *au_drinfo_read_k(struct file *file, ino_t h_ino) ++{ ++ struct au_drinfo *ret, *drinfo; ++ struct au_drinfo_fdata fdata; ++ int len; ++ loff_t pos; ++ ssize_t ssz; ++ ++ ret = ERR_PTR(-EIO); ++ pos = 0; ++ ssz = vfsub_read_k(file, &fdata, sizeof(fdata), &pos); ++ if (unlikely(ssz != sizeof(fdata))) { ++ AuIOErr("ssz %zd, %u, %pD2\n", ++ ssz, (unsigned int)sizeof(fdata), file); ++ goto out; ++ } ++ ++ fdata.magic = ntohl((__force __be32)fdata.magic); ++ switch (fdata.magic) { ++ case AUFS_DRINFO_MAGIC_V1: ++ break; ++ default: ++ AuIOErr("magic-num 0x%x, 0x%x, %pD2\n", ++ fdata.magic, AUFS_DRINFO_MAGIC_V1, file); ++ goto out; ++ } ++ ++ drinfo = &fdata.drinfo; ++ len = drinfo->oldnamelen; ++ if (!len) { ++ AuIOErr("broken drinfo %pD2\n", file); ++ goto out; ++ } ++ ++ ret = NULL; ++ drinfo->ino = be64_to_cpu((__force __be64)drinfo->ino); ++ if (unlikely(h_ino && drinfo->ino != h_ino)) { ++ AuDbg("ignored i%llu, i%llu, %pD2\n", ++ (unsigned long long)drinfo->ino, ++ (unsigned long long)h_ino, file); ++ goto out; /* success */ ++ } ++ ++ ret = kmalloc(sizeof(*ret) + len, GFP_NOFS); ++ if (unlikely(!ret)) { ++ ret = ERR_PTR(-ENOMEM); ++ AuTraceErrPtr(ret); ++ goto out; ++ } ++ ++ *ret = *drinfo; ++ ssz = vfsub_read_k(file, (void *)ret->oldname, len, &pos); ++ if (unlikely(ssz != len)) { ++ au_kfree_rcu(ret); ++ ret = ERR_PTR(-EIO); ++ AuIOErr("ssz %zd, %u, %pD2\n", ssz, len, file); ++ goto out; ++ } ++ ++ AuDbg("oldname %.*s\n", ret->oldnamelen, ret->oldname); ++ ++out: ++ return ret; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++/* in order to be revertible */ ++struct au_drinfo_rev_elm { ++ int created; ++ struct dentry *info_dentry; ++ struct au_drinfo *info_last; ++}; ++ ++struct au_drinfo_rev { ++ unsigned char already; ++ aufs_bindex_t nelm; ++ struct au_drinfo_rev_elm elm[]; ++}; ++ ++/* todo: isn't it too large? */ ++struct au_drinfo_store { ++ struct path h_ppath; ++ struct dentry *h_dentry; ++ struct au_drinfo_fdata *fdata; ++ char *infoname; /* inside of whname, just after PFX */ ++ char whname[sizeof(AUFS_WH_DR_INFO_PFX) + AUFS_DIRREN_ENV_VAL_SZ]; ++ aufs_bindex_t btgt, btail; ++ unsigned char no_sio, ++ allocated, /* current size of *fdata */ ++ infonamelen, /* room size for p */ ++ whnamelen, /* length of the generated name */ ++ renameback; /* renamed back */ ++}; ++ ++/* on rename(2) error, the caller should revert it using @elm */ ++static int au_drinfo_do_store(struct au_drinfo_store *w, ++ struct au_drinfo_rev_elm *elm) ++{ ++ int err, len; ++ ssize_t ssz; ++ loff_t pos; ++ struct path infopath = { ++ .mnt = w->h_ppath.mnt ++ }; ++ struct inode *h_dir, *h_inode, *delegated; ++ struct file *infofile; ++ struct qstr *qname; ++ ++ AuDebugOn(elm ++ && memcmp(elm, page_address(ZERO_PAGE(0)), sizeof(*elm))); ++ ++ infopath.dentry = vfsub_lookup_one_len(w->whname, &w->h_ppath, ++ w->whnamelen); ++ AuTraceErrPtr(infopath.dentry); ++ if (IS_ERR(infopath.dentry)) { ++ err = PTR_ERR(infopath.dentry); ++ goto out; ++ } ++ ++ err = 0; ++ h_dir = d_inode(w->h_ppath.dentry); ++ if (elm && d_is_negative(infopath.dentry)) { ++ err = vfsub_create(h_dir, &infopath, 0600, /*want_excl*/true); ++ AuTraceErr(err); ++ if (unlikely(err)) ++ goto out_dput; ++ elm->created = 1; ++ elm->info_dentry = dget(infopath.dentry); ++ } ++ ++ infofile = vfsub_dentry_open(&infopath, O_RDWR); ++ AuTraceErrPtr(infofile); ++ if (IS_ERR(infofile)) { ++ err = PTR_ERR(infofile); ++ goto out_dput; ++ } ++ ++ h_inode = d_inode(infopath.dentry); ++ if (elm && i_size_read(h_inode)) { ++ h_inode = d_inode(w->h_dentry); ++ elm->info_last = au_drinfo_read_k(infofile, h_inode->i_ino); ++ AuTraceErrPtr(elm->info_last); ++ if (IS_ERR(elm->info_last)) { ++ err = PTR_ERR(elm->info_last); ++ elm->info_last = NULL; ++ AuDebugOn(elm->info_dentry); ++ goto out_fput; ++ } ++ } ++ ++ if (elm && w->renameback) { ++ delegated = NULL; ++ err = vfsub_unlink(h_dir, &infopath, &delegated, /*force*/0); ++ AuTraceErr(err); ++ if (unlikely(err == -EWOULDBLOCK)) ++ iput(delegated); ++ goto out_fput; ++ } ++ ++ pos = 0; ++ qname = &w->h_dentry->d_name; ++ len = sizeof(*w->fdata) + qname->len; ++ if (!elm) ++ len = sizeof(*w->fdata) + w->fdata->drinfo.oldnamelen; ++ ssz = vfsub_write_k(infofile, w->fdata, len, &pos); ++ if (ssz == len) { ++ AuDbg("hi%llu, %.*s\n", w->fdata->drinfo.ino, ++ w->fdata->drinfo.oldnamelen, w->fdata->drinfo.oldname); ++ goto out_fput; /* success */ ++ } else { ++ err = -EIO; ++ if (ssz < 0) ++ err = ssz; ++ /* the caller should revert it using @elm */ ++ } ++ ++out_fput: ++ fput(infofile); ++out_dput: ++ dput(infopath.dentry); ++out: ++ AuTraceErr(err); ++ return err; ++} ++ ++struct au_call_drinfo_do_store_args { ++ int *errp; ++ struct au_drinfo_store *w; ++ struct au_drinfo_rev_elm *elm; ++}; ++ ++static void au_call_drinfo_do_store(void *args) ++{ ++ struct au_call_drinfo_do_store_args *a = args; ++ ++ *a->errp = au_drinfo_do_store(a->w, a->elm); ++} ++ ++static int au_drinfo_store_sio(struct au_drinfo_store *w, ++ struct au_drinfo_rev_elm *elm) ++{ ++ int err, wkq_err; ++ ++ if (w->no_sio) ++ err = au_drinfo_do_store(w, elm); ++ else { ++ struct au_call_drinfo_do_store_args a = { ++ .errp = &err, ++ .w = w, ++ .elm = elm ++ }; ++ wkq_err = au_wkq_wait(au_call_drinfo_do_store, &a); ++ if (unlikely(wkq_err)) ++ err = wkq_err; ++ } ++ AuTraceErr(err); ++ ++ return err; ++} ++ ++static int au_drinfo_store_work_init(struct au_drinfo_store *w, ++ aufs_bindex_t btgt) ++{ ++ int err; ++ ++ memset(w, 0, sizeof(*w)); ++ w->allocated = roundup_pow_of_two(sizeof(*w->fdata) + 40); ++ strcpy(w->whname, AUFS_WH_DR_INFO_PFX); ++ w->infoname = w->whname + sizeof(AUFS_WH_DR_INFO_PFX) - 1; ++ w->infonamelen = sizeof(w->whname) - sizeof(AUFS_WH_DR_INFO_PFX); ++ w->btgt = btgt; ++ w->no_sio = !!uid_eq(current_fsuid(), GLOBAL_ROOT_UID); ++ ++ err = -ENOMEM; ++ w->fdata = kcalloc(1, w->allocated, GFP_NOFS); ++ if (unlikely(!w->fdata)) { ++ AuTraceErr(err); ++ goto out; ++ } ++ w->fdata->magic = (__force uint32_t)htonl(AUFS_DRINFO_MAGIC_V1); ++ err = 0; ++ ++out: ++ return err; ++} ++ ++static void au_drinfo_store_work_fin(struct au_drinfo_store *w) ++{ ++ au_kfree_rcu(w->fdata); ++} ++ ++static void au_drinfo_store_rev(struct au_drinfo_rev *rev, ++ struct au_drinfo_store *w) ++{ ++ struct au_drinfo_rev_elm *elm; ++ struct inode *h_dir, *delegated; ++ int err, nelm; ++ struct path infopath = { ++ .mnt = w->h_ppath.mnt ++ }; ++ ++ h_dir = d_inode(w->h_ppath.dentry); ++ IMustLock(h_dir); ++ ++ err = 0; ++ elm = rev->elm; ++ for (nelm = rev->nelm; nelm > 0; nelm--, elm++) { ++ AuDebugOn(elm->created && elm->info_last); ++ if (elm->created) { ++ AuDbg("here\n"); ++ delegated = NULL; ++ infopath.dentry = elm->info_dentry; ++ err = vfsub_unlink(h_dir, &infopath, &delegated, ++ !w->no_sio); ++ AuTraceErr(err); ++ if (unlikely(err == -EWOULDBLOCK)) ++ iput(delegated); ++ dput(elm->info_dentry); ++ } else if (elm->info_last) { ++ AuDbg("here\n"); ++ w->fdata->drinfo = *elm->info_last; ++ memcpy(w->fdata->drinfo.oldname, ++ elm->info_last->oldname, ++ elm->info_last->oldnamelen); ++ err = au_drinfo_store_sio(w, /*elm*/NULL); ++ au_kfree_rcu(elm->info_last); ++ } ++ if (unlikely(err)) ++ AuIOErr("%d, %s\n", err, w->whname); ++ /* go on even if err */ ++ } ++} ++ ++/* caller has to call au_dr_rename_fin() later */ ++static int au_drinfo_store(struct dentry *dentry, aufs_bindex_t btgt, ++ struct qstr *dst_name, void *_rev) ++{ ++ int err, sz, nelm; ++ aufs_bindex_t bindex, btail; ++ struct au_drinfo_store work; ++ struct au_drinfo_rev *rev, **p; ++ struct au_drinfo_rev_elm *elm; ++ struct super_block *sb; ++ struct au_branch *br; ++ struct au_hinode *hdir; ++ ++ err = au_drinfo_store_work_init(&work, btgt); ++ AuTraceErr(err); ++ if (unlikely(err)) ++ goto out; ++ ++ err = -ENOMEM; ++ btail = au_dbtaildir(dentry); ++ nelm = btail - btgt; ++ sz = sizeof(*rev) + sizeof(*elm) * nelm; ++ rev = kcalloc(1, sz, GFP_NOFS); ++ if (unlikely(!rev)) { ++ AuTraceErr(err); ++ goto out_args; ++ } ++ rev->nelm = nelm; ++ elm = rev->elm; ++ p = _rev; ++ *p = rev; ++ ++ err = 0; ++ sb = dentry->d_sb; ++ work.h_ppath.dentry = au_h_dptr(dentry, btgt); ++ work.h_ppath.mnt = au_sbr_mnt(sb, btgt); ++ hdir = au_hi(d_inode(dentry), btgt); ++ au_hn_inode_lock_nested(hdir, AuLsc_I_CHILD); ++ for (bindex = btgt + 1; bindex <= btail; bindex++, elm++) { ++ work.h_dentry = au_h_dptr(dentry, bindex); ++ if (!work.h_dentry) ++ continue; ++ ++ err = au_drinfo_construct(&work.fdata, work.h_dentry, ++ &work.allocated); ++ AuTraceErr(err); ++ if (unlikely(err)) ++ break; ++ ++ work.renameback = au_qstreq(&work.h_dentry->d_name, dst_name); ++ br = au_sbr(sb, bindex); ++ work.whnamelen = sizeof(AUFS_WH_DR_INFO_PFX) - 1; ++ work.whnamelen += au_drinfo_name(br, work.infoname, ++ work.infonamelen); ++ AuDbg("whname %.*s, i%llu, %.*s\n", ++ work.whnamelen, work.whname, ++ be64_to_cpu((__force __be64)work.fdata->drinfo.ino), ++ work.fdata->drinfo.oldnamelen, ++ work.fdata->drinfo.oldname); ++ ++ err = au_drinfo_store_sio(&work, elm); ++ AuTraceErr(err); ++ if (unlikely(err)) ++ break; ++ } ++ if (unlikely(err)) { ++ /* revert all drinfo */ ++ au_drinfo_store_rev(rev, &work); ++ au_kfree_try_rcu(rev); ++ *p = NULL; ++ } ++ au_hn_inode_unlock(hdir); ++ ++out_args: ++ au_drinfo_store_work_fin(&work); ++out: ++ return err; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++int au_dr_rename(struct dentry *src, aufs_bindex_t bindex, ++ struct qstr *dst_name, void *_rev) ++{ ++ int err, already; ++ ino_t ino; ++ struct super_block *sb; ++ struct au_branch *br; ++ struct au_dr_br *dr; ++ struct dentry *h_dentry; ++ struct inode *h_inode; ++ struct au_dr_hino *ent; ++ struct au_drinfo_rev *rev, **p; ++ ++ AuDbg("bindex %d\n", bindex); ++ ++ err = -ENOMEM; ++ ent = kmalloc(sizeof(*ent), GFP_NOFS); ++ if (unlikely(!ent)) ++ goto out; ++ ++ sb = src->d_sb; ++ br = au_sbr(sb, bindex); ++ dr = &br->br_dirren; ++ h_dentry = au_h_dptr(src, bindex); ++ h_inode = d_inode(h_dentry); ++ ino = h_inode->i_ino; ++ ent->dr_h_ino = ino; ++ already = au_dr_hino_test_add(dr, ino, ent); ++ AuDbg("b%d, hi%llu, already %d\n", ++ bindex, (unsigned long long)ino, already); ++ ++ err = au_drinfo_store(src, bindex, dst_name, _rev); ++ AuTraceErr(err); ++ if (!err) { ++ p = _rev; ++ rev = *p; ++ rev->already = already; ++ goto out; /* success */ ++ } ++ ++ /* revert */ ++ if (!already) ++ au_dr_hino_del(dr, ent); ++ au_kfree_rcu(ent); ++ ++out: ++ AuTraceErr(err); ++ return err; ++} ++ ++void au_dr_rename_fin(struct dentry *src, aufs_bindex_t btgt, void *_rev) ++{ ++ struct au_drinfo_rev *rev; ++ struct au_drinfo_rev_elm *elm; ++ int nelm; ++ ++ rev = _rev; ++ elm = rev->elm; ++ for (nelm = rev->nelm; nelm > 0; nelm--, elm++) { ++ dput(elm->info_dentry); ++ au_kfree_rcu(elm->info_last); ++ } ++ au_kfree_try_rcu(rev); ++} ++ ++void au_dr_rename_rev(struct dentry *src, aufs_bindex_t btgt, void *_rev) ++{ ++ int err; ++ struct au_drinfo_store work; ++ struct au_drinfo_rev *rev = _rev; ++ struct super_block *sb; ++ struct au_branch *br; ++ struct inode *h_inode; ++ struct au_dr_br *dr; ++ struct au_dr_hino *ent; ++ ++ err = au_drinfo_store_work_init(&work, btgt); ++ if (unlikely(err)) ++ goto out; ++ ++ sb = src->d_sb; ++ br = au_sbr(sb, btgt); ++ work.h_ppath.dentry = au_h_dptr(src, btgt); ++ work.h_ppath.mnt = au_br_mnt(br); ++ au_drinfo_store_rev(rev, &work); ++ au_drinfo_store_work_fin(&work); ++ if (rev->already) ++ goto out; ++ ++ dr = &br->br_dirren; ++ h_inode = d_inode(work.h_ppath.dentry); ++ ent = au_dr_hino_find(dr, h_inode->i_ino); ++ BUG_ON(!ent); ++ au_dr_hino_del(dr, ent); ++ au_kfree_rcu(ent); ++ ++out: ++ au_kfree_try_rcu(rev); ++ if (unlikely(err)) ++ pr_err("failed to remove dirren info\n"); ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++static struct au_drinfo *au_drinfo_do_load(struct path *h_ppath, ++ char *whname, int whnamelen, ++ struct dentry **info_dentry) ++{ ++ struct au_drinfo *drinfo; ++ struct file *f; ++ struct inode *h_dir; ++ struct path infopath; ++ int unlocked; ++ ++ AuDbg("%pd/%.*s\n", h_ppath->dentry, whnamelen, whname); ++ ++ *info_dentry = NULL; ++ drinfo = NULL; ++ unlocked = 0; ++ h_dir = d_inode(h_ppath->dentry); ++ inode_lock_shared_nested(h_dir, AuLsc_I_PARENT); ++ infopath.dentry = vfsub_lookup_one_len(whname, h_ppath, whnamelen); ++ if (IS_ERR(infopath.dentry)) { ++ drinfo = (void *)infopath.dentry; ++ goto out; ++ } ++ ++ if (d_is_negative(infopath.dentry)) ++ goto out_dput; /* success */ ++ ++ infopath.mnt = h_ppath->mnt; ++ f = vfsub_dentry_open(&infopath, O_RDONLY); ++ inode_unlock_shared(h_dir); ++ unlocked = 1; ++ if (IS_ERR(f)) { ++ drinfo = (void *)f; ++ goto out_dput; ++ } ++ ++ drinfo = au_drinfo_read_k(f, /*h_ino*/0); ++ if (IS_ERR_OR_NULL(drinfo)) ++ goto out_fput; ++ ++ AuDbg("oldname %.*s\n", drinfo->oldnamelen, drinfo->oldname); ++ *info_dentry = dget(infopath.dentry); /* keep it alive */ ++ ++out_fput: ++ fput(f); ++out_dput: ++ dput(infopath.dentry); ++out: ++ if (!unlocked) ++ inode_unlock_shared(h_dir); ++ AuTraceErrPtr(drinfo); ++ return drinfo; ++} ++ ++struct au_drinfo_do_load_args { ++ struct au_drinfo **drinfop; ++ struct path *h_ppath; ++ char *whname; ++ int whnamelen; ++ struct dentry **info_dentry; ++}; ++ ++static void au_call_drinfo_do_load(void *args) ++{ ++ struct au_drinfo_do_load_args *a = args; ++ ++ *a->drinfop = au_drinfo_do_load(a->h_ppath, a->whname, a->whnamelen, ++ a->info_dentry); ++} ++ ++struct au_drinfo_load { ++ struct path h_ppath; ++ struct qstr *qname; ++ unsigned char no_sio; ++ ++ aufs_bindex_t ninfo; ++ struct au_drinfo **drinfo; ++}; ++ ++static int au_drinfo_load(struct au_drinfo_load *w, aufs_bindex_t bindex, ++ struct au_branch *br) ++{ ++ int err, wkq_err, whnamelen, e; ++ char whname[sizeof(AUFS_WH_DR_INFO_PFX) + AUFS_DIRREN_ENV_VAL_SZ] ++ = AUFS_WH_DR_INFO_PFX; ++ struct au_drinfo *drinfo; ++ struct qstr oldname; ++ struct inode *h_dir, *delegated; ++ struct dentry *info_dentry; ++ struct path infopath; ++ ++ whnamelen = sizeof(AUFS_WH_DR_INFO_PFX) - 1; ++ whnamelen += au_drinfo_name(br, whname + whnamelen, ++ sizeof(whname) - whnamelen); ++ if (w->no_sio) ++ drinfo = au_drinfo_do_load(&w->h_ppath, whname, whnamelen, ++ &info_dentry); ++ else { ++ struct au_drinfo_do_load_args args = { ++ .drinfop = &drinfo, ++ .h_ppath = &w->h_ppath, ++ .whname = whname, ++ .whnamelen = whnamelen, ++ .info_dentry = &info_dentry ++ }; ++ wkq_err = au_wkq_wait(au_call_drinfo_do_load, &args); ++ if (unlikely(wkq_err)) ++ drinfo = ERR_PTR(wkq_err); ++ } ++ err = PTR_ERR(drinfo); ++ if (IS_ERR_OR_NULL(drinfo)) ++ goto out; ++ ++ err = 0; ++ oldname.len = drinfo->oldnamelen; ++ oldname.name = drinfo->oldname; ++ if (au_qstreq(w->qname, &oldname)) { ++ /* the name is renamed back */ ++ au_kfree_rcu(drinfo); ++ drinfo = NULL; ++ ++ infopath.dentry = info_dentry; ++ infopath.mnt = w->h_ppath.mnt; ++ h_dir = d_inode(w->h_ppath.dentry); ++ delegated = NULL; ++ inode_lock_nested(h_dir, AuLsc_I_PARENT); ++ e = vfsub_unlink(h_dir, &infopath, &delegated, !w->no_sio); ++ inode_unlock(h_dir); ++ if (unlikely(e)) ++ AuIOErr("ignored %d, %pd2\n", e, &infopath.dentry); ++ if (unlikely(e == -EWOULDBLOCK)) ++ iput(delegated); ++ } ++ au_kfree_rcu(w->drinfo[bindex]); ++ w->drinfo[bindex] = drinfo; ++ dput(info_dentry); ++ ++out: ++ AuTraceErr(err); ++ return err; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++static void au_dr_lkup_free(struct au_drinfo **drinfo, int n) ++{ ++ struct au_drinfo **p = drinfo; ++ ++ while (n-- > 0) ++ au_kfree_rcu(*drinfo++); ++ au_kfree_try_rcu(p); ++} ++ ++int au_dr_lkup(struct au_do_lookup_args *lkup, struct dentry *dentry, ++ aufs_bindex_t btgt) ++{ ++ int err, ninfo; ++ struct au_drinfo_load w; ++ aufs_bindex_t bindex, bbot; ++ struct au_branch *br; ++ struct inode *h_dir; ++ struct au_dr_hino *ent; ++ struct super_block *sb; ++ ++ AuDbg("%.*s, name %.*s, whname %.*s, b%d\n", ++ AuLNPair(&dentry->d_name), AuLNPair(&lkup->dirren.dr_name), ++ AuLNPair(&lkup->whname), btgt); ++ ++ sb = dentry->d_sb; ++ bbot = au_sbbot(sb); ++ w.ninfo = bbot + 1; ++ if (!lkup->dirren.drinfo) { ++ lkup->dirren.drinfo = kcalloc(w.ninfo, ++ sizeof(*lkup->dirren.drinfo), ++ GFP_NOFS); ++ if (unlikely(!lkup->dirren.drinfo)) { ++ err = -ENOMEM; ++ goto out; ++ } ++ lkup->dirren.ninfo = w.ninfo; ++ } ++ w.drinfo = lkup->dirren.drinfo; ++ w.no_sio = !!uid_eq(current_fsuid(), GLOBAL_ROOT_UID); ++ w.h_ppath.dentry = au_h_dptr(dentry, btgt); ++ AuDebugOn(!w.h_ppath.dentry); ++ w.h_ppath.mnt = au_sbr_mnt(sb, btgt); ++ w.qname = &dentry->d_name; ++ ++ ninfo = 0; ++ for (bindex = btgt + 1; bindex <= bbot; bindex++) { ++ br = au_sbr(sb, bindex); ++ err = au_drinfo_load(&w, bindex, br); ++ if (unlikely(err)) ++ goto out_free; ++ if (w.drinfo[bindex]) ++ ninfo++; ++ } ++ if (!ninfo) { ++ br = au_sbr(sb, btgt); ++ h_dir = d_inode(w.h_ppath.dentry); ++ ent = au_dr_hino_find(&br->br_dirren, h_dir->i_ino); ++ AuDebugOn(!ent); ++ au_dr_hino_del(&br->br_dirren, ent); ++ au_kfree_rcu(ent); ++ } ++ goto out; /* success */ ++ ++out_free: ++ au_dr_lkup_free(lkup->dirren.drinfo, lkup->dirren.ninfo); ++ lkup->dirren.ninfo = 0; ++ lkup->dirren.drinfo = NULL; ++out: ++ AuTraceErr(err); ++ return err; ++} ++ ++void au_dr_lkup_fin(struct au_do_lookup_args *lkup) ++{ ++ au_dr_lkup_free(lkup->dirren.drinfo, lkup->dirren.ninfo); ++} ++ ++int au_dr_lkup_name(struct au_do_lookup_args *lkup, aufs_bindex_t btgt) ++{ ++ int err; ++ struct au_drinfo *drinfo; ++ ++ err = 0; ++ if (!lkup->dirren.drinfo) ++ goto out; ++ AuDebugOn(lkup->dirren.ninfo <= btgt); ++ drinfo = lkup->dirren.drinfo[btgt]; ++ if (!drinfo) ++ goto out; ++ ++ au_kfree_try_rcu(lkup->whname.name); ++ lkup->whname.name = NULL; ++ lkup->dirren.dr_name.len = drinfo->oldnamelen; ++ lkup->dirren.dr_name.name = drinfo->oldname; ++ lkup->name = &lkup->dirren.dr_name; ++ err = au_wh_name_alloc(&lkup->whname, lkup->name); ++ if (!err) ++ AuDbg("name %.*s, whname %.*s, b%d\n", ++ AuLNPair(lkup->name), AuLNPair(&lkup->whname), ++ btgt); ++ ++out: ++ AuTraceErr(err); ++ return err; ++} ++ ++int au_dr_lkup_h_ino(struct au_do_lookup_args *lkup, aufs_bindex_t bindex, ++ ino_t h_ino) ++{ ++ int match; ++ struct au_drinfo *drinfo; ++ ++ match = 1; ++ if (!lkup->dirren.drinfo) ++ goto out; ++ AuDebugOn(lkup->dirren.ninfo <= bindex); ++ drinfo = lkup->dirren.drinfo[bindex]; ++ if (!drinfo) ++ goto out; ++ ++ match = (drinfo->ino == h_ino); ++ AuDbg("match %d\n", match); ++ ++out: ++ return match; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++int au_dr_opt_set(struct super_block *sb) ++{ ++ int err; ++ aufs_bindex_t bindex, bbot; ++ struct au_branch *br; ++ ++ err = 0; ++ bbot = au_sbbot(sb); ++ for (bindex = 0; !err && bindex <= bbot; bindex++) { ++ br = au_sbr(sb, bindex); ++ err = au_dr_hino(sb, bindex, /*br*/NULL, &br->br_path); ++ } ++ ++ return err; ++} ++ ++int au_dr_opt_flush(struct super_block *sb) ++{ ++ int err; ++ aufs_bindex_t bindex, bbot; ++ struct au_branch *br; ++ ++ err = 0; ++ bbot = au_sbbot(sb); ++ for (bindex = 0; !err && bindex <= bbot; bindex++) { ++ br = au_sbr(sb, bindex); ++ if (au_br_writable(br->br_perm)) ++ err = au_dr_hino(sb, bindex, /*br*/NULL, /*path*/NULL); ++ } ++ ++ return err; ++} ++ ++int au_dr_opt_clr(struct super_block *sb, int no_flush) ++{ ++ int err; ++ aufs_bindex_t bindex, bbot; ++ struct au_branch *br; ++ ++ err = 0; ++ if (!no_flush) { ++ err = au_dr_opt_flush(sb); ++ if (unlikely(err)) ++ goto out; ++ } ++ ++ bbot = au_sbbot(sb); ++ for (bindex = 0; bindex <= bbot; bindex++) { ++ br = au_sbr(sb, bindex); ++ au_dr_hino_free(&br->br_dirren); ++ } ++ ++out: ++ return err; ++} +diff -Naur linux-5.15/fs/aufs/dirren.h aufs5-linux-aufs5.15/fs/aufs/dirren.h +--- linux-5.15/fs/aufs/dirren.h 1970-01-01 03:00:00.000000000 +0300 ++++ aufs5-linux-aufs5.15/fs/aufs/dirren.h 2022-03-07 13:48:09.000000000 +0300 +@@ -0,0 +1,127 @@ ++/* SPDX-License-Identifier: GPL-2.0 */ ++/* ++ * Copyright (C) 2017-2021 Junjiro R. Okajima ++ */ ++ ++/* ++ * renamed dir info ++ */ ++ ++#ifndef __AUFS_DIRREN_H__ ++#define __AUFS_DIRREN_H__ ++ ++#ifdef __KERNEL__ ++ ++#include ++#include ++#include ++#include "hbl.h" ++ ++#define AuDirren_NHASH 100 ++ ++#ifdef CONFIG_AUFS_DIRREN ++enum au_brid_type { ++ AuBrid_Unset, ++ AuBrid_UUID, ++ AuBrid_FSID, ++ AuBrid_DEV ++}; ++ ++struct au_dr_brid { ++ enum au_brid_type type; ++ union { ++ uuid_t uuid; /* unimplemented yet */ ++ fsid_t fsid; ++ dev_t dev; ++ }; ++}; ++ ++/* 20 is the max digits length of ulong 64 */ ++/* brid-type "_" uuid "_" inum */ ++#define AUFS_DIRREN_FNAME_SZ (1 + 1 + UUID_STRING_LEN + 20) ++#define AUFS_DIRREN_ENV_VAL_SZ (AUFS_DIRREN_FNAME_SZ + 1 + 20) ++ ++struct au_dr_hino { ++ struct hlist_bl_node dr_hnode; ++ ino_t dr_h_ino; ++}; ++ ++struct au_dr_br { ++ struct hlist_bl_head dr_h_ino[AuDirren_NHASH]; ++ struct au_dr_brid dr_brid; ++}; ++ ++struct au_dr_lookup { ++ /* dr_name is pointed by struct au_do_lookup_args.name */ ++ struct qstr dr_name; /* subset of dr_info */ ++ aufs_bindex_t ninfo; ++ struct au_drinfo **drinfo; ++}; ++#else ++struct au_dr_hino; ++/* empty */ ++struct au_dr_br { }; ++struct au_dr_lookup { }; ++#endif ++ ++/* ---------------------------------------------------------------------- */ ++ ++struct au_branch; ++struct au_do_lookup_args; ++struct au_hinode; ++#ifdef CONFIG_AUFS_DIRREN ++int au_dr_hino_test_add(struct au_dr_br *dr, ino_t h_ino, ++ struct au_dr_hino *add_ent); ++void au_dr_hino_free(struct au_dr_br *dr); ++int au_dr_br_init(struct super_block *sb, struct au_branch *br, ++ const struct path *path); ++int au_dr_br_fin(struct super_block *sb, struct au_branch *br); ++int au_dr_rename(struct dentry *src, aufs_bindex_t bindex, ++ struct qstr *dst_name, void *_rev); ++void au_dr_rename_fin(struct dentry *src, aufs_bindex_t btgt, void *rev); ++void au_dr_rename_rev(struct dentry *src, aufs_bindex_t bindex, void *rev); ++int au_dr_lkup(struct au_do_lookup_args *lkup, struct dentry *dentry, ++ aufs_bindex_t bindex); ++int au_dr_lkup_name(struct au_do_lookup_args *lkup, aufs_bindex_t btgt); ++int au_dr_lkup_h_ino(struct au_do_lookup_args *lkup, aufs_bindex_t bindex, ++ ino_t h_ino); ++void au_dr_lkup_fin(struct au_do_lookup_args *lkup); ++int au_dr_opt_set(struct super_block *sb); ++int au_dr_opt_flush(struct super_block *sb); ++int au_dr_opt_clr(struct super_block *sb, int no_flush); ++#else ++AuStubInt0(au_dr_hino_test_add, struct au_dr_br *dr, ino_t h_ino, ++ struct au_dr_hino *add_ent); ++AuStubVoid(au_dr_hino_free, struct au_dr_br *dr); ++AuStubInt0(au_dr_br_init, struct super_block *sb, struct au_branch *br, ++ const struct path *path); ++AuStubInt0(au_dr_br_fin, struct super_block *sb, struct au_branch *br); ++AuStubInt0(au_dr_rename, struct dentry *src, aufs_bindex_t bindex, ++ struct qstr *dst_name, void *_rev); ++AuStubVoid(au_dr_rename_fin, struct dentry *src, aufs_bindex_t btgt, void *rev); ++AuStubVoid(au_dr_rename_rev, struct dentry *src, aufs_bindex_t bindex, ++ void *rev); ++AuStubInt0(au_dr_lkup, struct au_do_lookup_args *lkup, struct dentry *dentry, ++ aufs_bindex_t bindex); ++AuStubInt0(au_dr_lkup_name, struct au_do_lookup_args *lkup, aufs_bindex_t btgt); ++AuStubInt0(au_dr_lkup_h_ino, struct au_do_lookup_args *lkup, ++ aufs_bindex_t bindex, ino_t h_ino); ++AuStubVoid(au_dr_lkup_fin, struct au_do_lookup_args *lkup); ++AuStubInt0(au_dr_opt_set, struct super_block *sb); ++AuStubInt0(au_dr_opt_flush, struct super_block *sb); ++AuStubInt0(au_dr_opt_clr, struct super_block *sb, int no_flush); ++#endif ++ ++/* ---------------------------------------------------------------------- */ ++ ++#ifdef CONFIG_AUFS_DIRREN ++static inline int au_dr_ihash(ino_t h_ino) ++{ ++ return h_ino % AuDirren_NHASH; ++} ++#else ++AuStubInt0(au_dr_ihash, ino_t h_ino); ++#endif ++ ++#endif /* __KERNEL__ */ ++#endif /* __AUFS_DIRREN_H__ */ +diff -Naur linux-5.15/fs/aufs/dynop.c aufs5-linux-aufs5.15/fs/aufs/dynop.c +--- linux-5.15/fs/aufs/dynop.c 1970-01-01 03:00:00.000000000 +0300 ++++ aufs5-linux-aufs5.15/fs/aufs/dynop.c 2022-03-07 13:48:09.000000000 +0300 +@@ -0,0 +1,355 @@ ++// SPDX-License-Identifier: GPL-2.0 ++/* ++ * Copyright (C) 2010-2021 Junjiro R. Okajima ++ */ ++ ++/* ++ * dynamically customizable operations for regular files ++ */ ++ ++#include "aufs.h" ++ ++#define DyPrSym(key) AuDbgSym(key->dk_op.dy_hop) ++ ++/* ++ * How large will these lists be? ++ * Usually just a few elements, 20-30 at most for each, I guess. ++ */ ++static struct hlist_bl_head dynop[AuDyLast]; ++ ++static struct au_dykey *dy_gfind_get(struct hlist_bl_head *hbl, ++ const void *h_op) ++{ ++ struct au_dykey *key, *tmp; ++ struct hlist_bl_node *pos; ++ ++ key = NULL; ++ hlist_bl_lock(hbl); ++ hlist_bl_for_each_entry(tmp, pos, hbl, dk_hnode) ++ if (tmp->dk_op.dy_hop == h_op) { ++ if (kref_get_unless_zero(&tmp->dk_kref)) ++ key = tmp; ++ break; ++ } ++ hlist_bl_unlock(hbl); ++ ++ return key; ++} ++ ++static struct au_dykey *dy_bradd(struct au_branch *br, struct au_dykey *key) ++{ ++ struct au_dykey **k, *found; ++ const void *h_op = key->dk_op.dy_hop; ++ int i; ++ ++ found = NULL; ++ k = br->br_dykey; ++ for (i = 0; i < AuBrDynOp; i++) ++ if (k[i]) { ++ if (k[i]->dk_op.dy_hop == h_op) { ++ found = k[i]; ++ break; ++ } ++ } else ++ break; ++ if (!found) { ++ spin_lock(&br->br_dykey_lock); ++ for (; i < AuBrDynOp; i++) ++ if (k[i]) { ++ if (k[i]->dk_op.dy_hop == h_op) { ++ found = k[i]; ++ break; ++ } ++ } else { ++ k[i] = key; ++ break; ++ } ++ spin_unlock(&br->br_dykey_lock); ++ BUG_ON(i == AuBrDynOp); /* expand the array */ ++ } ++ ++ return found; ++} ++ ++/* kref_get() if @key is already added */ ++static struct au_dykey *dy_gadd(struct hlist_bl_head *hbl, struct au_dykey *key) ++{ ++ struct au_dykey *tmp, *found; ++ struct hlist_bl_node *pos; ++ const void *h_op = key->dk_op.dy_hop; ++ ++ found = NULL; ++ hlist_bl_lock(hbl); ++ hlist_bl_for_each_entry(tmp, pos, hbl, dk_hnode) ++ if (tmp->dk_op.dy_hop == h_op) { ++ if (kref_get_unless_zero(&tmp->dk_kref)) ++ found = tmp; ++ break; ++ } ++ if (!found) ++ hlist_bl_add_head(&key->dk_hnode, hbl); ++ hlist_bl_unlock(hbl); ++ ++ if (!found) ++ DyPrSym(key); ++ return found; ++} ++ ++static void dy_free_rcu(struct rcu_head *rcu) ++{ ++ struct au_dykey *key; ++ ++ key = container_of(rcu, struct au_dykey, dk_rcu); ++ DyPrSym(key); ++ kfree(key); ++} ++ ++static void dy_free(struct kref *kref) ++{ ++ struct au_dykey *key; ++ struct hlist_bl_head *hbl; ++ ++ key = container_of(kref, struct au_dykey, dk_kref); ++ hbl = dynop + key->dk_op.dy_type; ++ au_hbl_del(&key->dk_hnode, hbl); ++ call_rcu(&key->dk_rcu, dy_free_rcu); ++} ++ ++void au_dy_put(struct au_dykey *key) ++{ ++ kref_put(&key->dk_kref, dy_free); ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++#define DyDbgSize(cnt, op) AuDebugOn(cnt != sizeof(op)/sizeof(void *)) ++ ++#ifdef CONFIG_AUFS_DEBUG ++#define DyDbgDeclare(cnt) unsigned int cnt = 0 ++#define DyDbgInc(cnt) do { cnt++; } while (0) ++#else ++#define DyDbgDeclare(cnt) do {} while (0) ++#define DyDbgInc(cnt) do {} while (0) ++#endif ++ ++#define DySet(func, dst, src, h_op, h_sb) do { \ ++ DyDbgInc(cnt); \ ++ if (h_op->func) { \ ++ if (src.func) \ ++ dst.func = src.func; \ ++ else \ ++ AuDbg("%s %s\n", au_sbtype(h_sb), #func); \ ++ } \ ++} while (0) ++ ++#define DySetForce(func, dst, src) do { \ ++ AuDebugOn(!src.func); \ ++ DyDbgInc(cnt); \ ++ dst.func = src.func; \ ++} while (0) ++ ++#define DySetAop(func) \ ++ DySet(func, dyaop->da_op, aufs_aop, h_aop, h_sb) ++#define DySetAopForce(func) \ ++ DySetForce(func, dyaop->da_op, aufs_aop) ++ ++static void dy_aop(struct au_dykey *key, const void *h_op, ++ struct super_block *h_sb __maybe_unused) ++{ ++ struct au_dyaop *dyaop = (void *)key; ++ const struct address_space_operations *h_aop = h_op; ++ DyDbgDeclare(cnt); ++ ++ AuDbg("%s\n", au_sbtype(h_sb)); ++ ++ DySetAop(writepage); ++ DySetAopForce(readpage); /* force */ ++ DySetAop(writepages); ++ DySetAop(set_page_dirty); ++ DySetAop(readpages); ++ DySetAop(readahead); ++ DySetAop(write_begin); ++ DySetAop(write_end); ++ DySetAop(bmap); ++ DySetAop(invalidatepage); ++ DySetAop(releasepage); ++ DySetAop(freepage); ++ /* this one will be changed according to an aufs mount option */ ++ DySetAop(direct_IO); ++ DySetAop(migratepage); ++ DySetAop(isolate_page); ++ DySetAop(putback_page); ++ DySetAop(launder_page); ++ DySetAop(is_partially_uptodate); ++ DySetAop(is_dirty_writeback); ++ DySetAop(error_remove_page); ++ DySetAop(swap_activate); ++ DySetAop(swap_deactivate); ++ ++ DyDbgSize(cnt, *h_aop); ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++static void dy_bug(struct kref *kref) ++{ ++ BUG(); ++} ++ ++static struct au_dykey *dy_get(struct au_dynop *op, struct au_branch *br) ++{ ++ struct au_dykey *key, *old; ++ struct hlist_bl_head *hbl; ++ struct op { ++ unsigned int sz; ++ void (*set)(struct au_dykey *key, const void *h_op, ++ struct super_block *h_sb __maybe_unused); ++ }; ++ static const struct op a[] = { ++ [AuDy_AOP] = { ++ .sz = sizeof(struct au_dyaop), ++ .set = dy_aop ++ } ++ }; ++ const struct op *p; ++ ++ hbl = dynop + op->dy_type; ++ key = dy_gfind_get(hbl, op->dy_hop); ++ if (key) ++ goto out_add; /* success */ ++ ++ p = a + op->dy_type; ++ key = kzalloc(p->sz, GFP_NOFS); ++ if (unlikely(!key)) { ++ key = ERR_PTR(-ENOMEM); ++ goto out; ++ } ++ ++ key->dk_op.dy_hop = op->dy_hop; ++ kref_init(&key->dk_kref); ++ p->set(key, op->dy_hop, au_br_sb(br)); ++ old = dy_gadd(hbl, key); ++ if (old) { ++ au_kfree_rcu(key); ++ key = old; ++ } ++ ++out_add: ++ old = dy_bradd(br, key); ++ if (old) ++ /* its ref-count should never be zero here */ ++ kref_put(&key->dk_kref, dy_bug); ++out: ++ return key; ++} ++ ++/* ---------------------------------------------------------------------- */ ++/* ++ * Aufs prohibits O_DIRECT by default even if the branch supports it. ++ * This behaviour is necessary to return an error from open(O_DIRECT) instead ++ * of the succeeding I/O. The dio mount option enables O_DIRECT and makes ++ * open(O_DIRECT) always succeed, but the succeeding I/O may return an error. ++ * See the aufs manual in detail. ++ */ ++static void dy_adx(struct au_dyaop *dyaop, int do_dx) ++{ ++ if (!do_dx) ++ dyaop->da_op.direct_IO = NULL; ++ else ++ dyaop->da_op.direct_IO = aufs_aop.direct_IO; ++} ++ ++static struct au_dyaop *dy_aget(struct au_branch *br, ++ const struct address_space_operations *h_aop, ++ int do_dx) ++{ ++ struct au_dyaop *dyaop; ++ struct au_dynop op; ++ ++ op.dy_type = AuDy_AOP; ++ op.dy_haop = h_aop; ++ dyaop = (void *)dy_get(&op, br); ++ if (IS_ERR(dyaop)) ++ goto out; ++ dy_adx(dyaop, do_dx); ++ ++out: ++ return dyaop; ++} ++ ++int au_dy_iaop(struct inode *inode, aufs_bindex_t bindex, ++ struct inode *h_inode) ++{ ++ int err, do_dx; ++ struct super_block *sb; ++ struct au_branch *br; ++ struct au_dyaop *dyaop; ++ ++ AuDebugOn(!S_ISREG(h_inode->i_mode)); ++ IiMustWriteLock(inode); ++ ++ sb = inode->i_sb; ++ br = au_sbr(sb, bindex); ++ do_dx = !!au_opt_test(au_mntflags(sb), DIO); ++ dyaop = dy_aget(br, h_inode->i_mapping->a_ops, do_dx); ++ err = PTR_ERR(dyaop); ++ if (IS_ERR(dyaop)) ++ /* unnecessary to call dy_fput() */ ++ goto out; ++ ++ err = 0; ++ inode->i_mapping->a_ops = &dyaop->da_op; ++ ++out: ++ return err; ++} ++ ++/* ++ * Is it safe to replace a_ops during the inode/file is in operation? ++ * Yes, I hope so. ++ */ ++int au_dy_irefresh(struct inode *inode) ++{ ++ int err; ++ aufs_bindex_t btop; ++ struct inode *h_inode; ++ ++ err = 0; ++ if (S_ISREG(inode->i_mode)) { ++ btop = au_ibtop(inode); ++ h_inode = au_h_iptr(inode, btop); ++ err = au_dy_iaop(inode, btop, h_inode); ++ } ++ return err; ++} ++ ++void au_dy_arefresh(int do_dx) ++{ ++ struct hlist_bl_head *hbl; ++ struct hlist_bl_node *pos; ++ struct au_dykey *key; ++ ++ hbl = dynop + AuDy_AOP; ++ hlist_bl_lock(hbl); ++ hlist_bl_for_each_entry(key, pos, hbl, dk_hnode) ++ dy_adx((void *)key, do_dx); ++ hlist_bl_unlock(hbl); ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++void __init au_dy_init(void) ++{ ++ int i; ++ ++ for (i = 0; i < AuDyLast; i++) ++ INIT_HLIST_BL_HEAD(dynop + i); ++} ++ ++void au_dy_fin(void) ++{ ++ int i; ++ ++ for (i = 0; i < AuDyLast; i++) ++ WARN_ON(!hlist_bl_empty(dynop + i)); ++} +diff -Naur linux-5.15/fs/aufs/dynop.h aufs5-linux-aufs5.15/fs/aufs/dynop.h +--- linux-5.15/fs/aufs/dynop.h 1970-01-01 03:00:00.000000000 +0300 ++++ aufs5-linux-aufs5.15/fs/aufs/dynop.h 2022-03-07 13:48:09.000000000 +0300 +@@ -0,0 +1,64 @@ ++/* SPDX-License-Identifier: GPL-2.0 */ ++/* ++ * Copyright (C) 2010-2021 Junjiro R. Okajima ++ */ ++ ++/* ++ * dynamically customizable operations (for regular files only) ++ */ ++ ++#ifndef __AUFS_DYNOP_H__ ++#define __AUFS_DYNOP_H__ ++ ++#ifdef __KERNEL__ ++ ++#include ++#include ++ ++enum {AuDy_AOP, AuDyLast}; ++ ++struct au_dynop { ++ int dy_type; ++ union { ++ const void *dy_hop; ++ const struct address_space_operations *dy_haop; ++ }; ++}; ++ ++struct au_dykey { ++ union { ++ struct hlist_bl_node dk_hnode; ++ struct rcu_head dk_rcu; ++ }; ++ struct au_dynop dk_op; ++ ++ /* ++ * during I am in the branch local array, kref is gotten. when the ++ * branch is removed, kref is put. ++ */ ++ struct kref dk_kref; ++}; ++ ++/* stop unioning since their sizes are very different from each other */ ++struct au_dyaop { ++ struct au_dykey da_key; ++ struct address_space_operations da_op; /* not const */ ++}; ++/* make sure that 'struct au_dykey *' can be any type */ ++static_assert(!offsetof(struct au_dyaop, da_key)); ++ ++/* ---------------------------------------------------------------------- */ ++ ++/* dynop.c */ ++struct au_branch; ++void au_dy_put(struct au_dykey *key); ++int au_dy_iaop(struct inode *inode, aufs_bindex_t bindex, ++ struct inode *h_inode); ++int au_dy_irefresh(struct inode *inode); ++void au_dy_arefresh(int do_dio); ++ ++void __init au_dy_init(void); ++void au_dy_fin(void); ++ ++#endif /* __KERNEL__ */ ++#endif /* __AUFS_DYNOP_H__ */ +diff -Naur linux-5.15/fs/aufs/export.c aufs5-linux-aufs5.15/fs/aufs/export.c +--- linux-5.15/fs/aufs/export.c 1970-01-01 03:00:00.000000000 +0300 ++++ aufs5-linux-aufs5.15/fs/aufs/export.c 2022-03-07 13:48:09.000000000 +0300 +@@ -0,0 +1,817 @@ ++// SPDX-License-Identifier: GPL-2.0 ++/* ++ * Copyright (C) 2005-2021 Junjiro R. Okajima ++ */ ++ ++/* ++ * export via nfs ++ */ ++ ++#include ++#include ++#include ++#include ++#include ++#include "aufs.h" ++ ++union conv { ++#ifdef CONFIG_AUFS_INO_T_64 ++ __u32 a[2]; ++#else ++ __u32 a[1]; ++#endif ++ ino_t ino; ++}; ++ ++static ino_t decode_ino(__u32 *a) ++{ ++ union conv u; ++ ++ BUILD_BUG_ON(sizeof(u.ino) != sizeof(u.a)); ++ u.a[0] = a[0]; ++#ifdef CONFIG_AUFS_INO_T_64 ++ u.a[1] = a[1]; ++#endif ++ return u.ino; ++} ++ ++static void encode_ino(__u32 *a, ino_t ino) ++{ ++ union conv u; ++ ++ u.ino = ino; ++ a[0] = u.a[0]; ++#ifdef CONFIG_AUFS_INO_T_64 ++ a[1] = u.a[1]; ++#endif ++} ++ ++/* NFS file handle */ ++enum { ++ Fh_br_id, ++ Fh_sigen, ++#ifdef CONFIG_AUFS_INO_T_64 ++ /* support 64bit inode number */ ++ Fh_ino1, ++ Fh_ino2, ++ Fh_dir_ino1, ++ Fh_dir_ino2, ++#else ++ Fh_ino1, ++ Fh_dir_ino1, ++#endif ++ Fh_igen, ++ Fh_h_type, ++ Fh_tail, ++ ++ Fh_ino = Fh_ino1, ++ Fh_dir_ino = Fh_dir_ino1 ++}; ++ ++static int au_test_anon(struct dentry *dentry) ++{ ++ /* note: read d_flags without d_lock */ ++ return !!(dentry->d_flags & DCACHE_DISCONNECTED); ++} ++ ++int au_test_nfsd(void) ++{ ++ int ret; ++ struct task_struct *tsk = current; ++ char comm[sizeof(tsk->comm)]; ++ ++ ret = 0; ++ if (tsk->flags & PF_KTHREAD) { ++ get_task_comm(comm, tsk); ++ ret = !strcmp(comm, "nfsd"); ++ } ++ ++ return ret; ++} ++ ++/* ---------------------------------------------------------------------- */ ++/* inode generation external table */ ++ ++void au_xigen_inc(struct inode *inode) ++{ ++ loff_t pos; ++ ssize_t sz; ++ __u32 igen; ++ struct super_block *sb; ++ struct au_sbinfo *sbinfo; ++ ++ sb = inode->i_sb; ++ AuDebugOn(!au_opt_test(au_mntflags(sb), XINO)); ++ ++ sbinfo = au_sbi(sb); ++ pos = inode->i_ino; ++ pos *= sizeof(igen); ++ igen = inode->i_generation + 1; ++ sz = xino_fwrite(sbinfo->si_xigen, &igen, sizeof(igen), &pos); ++ if (sz == sizeof(igen)) ++ return; /* success */ ++ ++ if (unlikely(sz >= 0)) ++ AuIOErr("xigen error (%zd)\n", sz); ++} ++ ++int au_xigen_new(struct inode *inode) ++{ ++ int err; ++ loff_t pos; ++ ssize_t sz; ++ struct super_block *sb; ++ struct au_sbinfo *sbinfo; ++ struct file *file; ++ ++ err = 0; ++ /* todo: dirty, at mount time */ ++ if (inode->i_ino == AUFS_ROOT_INO) ++ goto out; ++ sb = inode->i_sb; ++ SiMustAnyLock(sb); ++ if (unlikely(!au_opt_test(au_mntflags(sb), XINO))) ++ goto out; ++ ++ err = -EFBIG; ++ pos = inode->i_ino; ++ if (unlikely(au_loff_max / sizeof(inode->i_generation) - 1 < pos)) { ++ AuIOErr1("too large i%lld\n", pos); ++ goto out; ++ } ++ pos *= sizeof(inode->i_generation); ++ ++ err = 0; ++ sbinfo = au_sbi(sb); ++ file = sbinfo->si_xigen; ++ BUG_ON(!file); ++ ++ if (vfsub_f_size_read(file) ++ < pos + sizeof(inode->i_generation)) { ++ inode->i_generation = atomic_inc_return(&sbinfo->si_xigen_next); ++ sz = xino_fwrite(file, &inode->i_generation, ++ sizeof(inode->i_generation), &pos); ++ } else ++ sz = xino_fread(file, &inode->i_generation, ++ sizeof(inode->i_generation), &pos); ++ if (sz == sizeof(inode->i_generation)) ++ goto out; /* success */ ++ ++ err = sz; ++ if (unlikely(sz >= 0)) { ++ err = -EIO; ++ AuIOErr("xigen error (%zd)\n", sz); ++ } ++ ++out: ++ return err; ++} ++ ++int au_xigen_set(struct super_block *sb, struct path *path) ++{ ++ int err; ++ struct au_sbinfo *sbinfo; ++ struct file *file; ++ ++ SiMustWriteLock(sb); ++ ++ sbinfo = au_sbi(sb); ++ file = au_xino_create2(sb, path, sbinfo->si_xigen); ++ err = PTR_ERR(file); ++ if (IS_ERR(file)) ++ goto out; ++ err = 0; ++ if (sbinfo->si_xigen) ++ fput(sbinfo->si_xigen); ++ sbinfo->si_xigen = file; ++ ++out: ++ AuTraceErr(err); ++ return err; ++} ++ ++void au_xigen_clr(struct super_block *sb) ++{ ++ struct au_sbinfo *sbinfo; ++ ++ SiMustWriteLock(sb); ++ ++ sbinfo = au_sbi(sb); ++ if (sbinfo->si_xigen) { ++ fput(sbinfo->si_xigen); ++ sbinfo->si_xigen = NULL; ++ } ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++static struct dentry *decode_by_ino(struct super_block *sb, ino_t ino, ++ ino_t dir_ino) ++{ ++ struct dentry *dentry, *d; ++ struct inode *inode; ++ unsigned int sigen; ++ ++ dentry = NULL; ++ inode = ilookup(sb, ino); ++ if (!inode) ++ goto out; ++ ++ dentry = ERR_PTR(-ESTALE); ++ sigen = au_sigen(sb); ++ if (unlikely(au_is_bad_inode(inode) ++ || IS_DEADDIR(inode) ++ || sigen != au_iigen(inode, NULL))) ++ goto out_iput; ++ ++ dentry = NULL; ++ if (!dir_ino || S_ISDIR(inode->i_mode)) ++ dentry = d_find_alias(inode); ++ else { ++ spin_lock(&inode->i_lock); ++ hlist_for_each_entry(d, &inode->i_dentry, d_u.d_alias) { ++ spin_lock(&d->d_lock); ++ if (!au_test_anon(d) ++ && d_inode(d->d_parent)->i_ino == dir_ino) { ++ dentry = dget_dlock(d); ++ spin_unlock(&d->d_lock); ++ break; ++ } ++ spin_unlock(&d->d_lock); ++ } ++ spin_unlock(&inode->i_lock); ++ } ++ if (unlikely(dentry && au_digen_test(dentry, sigen))) { ++ /* need to refresh */ ++ dput(dentry); ++ dentry = NULL; ++ } ++ ++out_iput: ++ iput(inode); ++out: ++ AuTraceErrPtr(dentry); ++ return dentry; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++/* todo: dirty? */ ++/* if exportfs_decode_fh() passed vfsmount*, we could be happy */ ++ ++struct au_compare_mnt_args { ++ /* input */ ++ struct super_block *sb; ++ ++ /* output */ ++ struct vfsmount *mnt; ++}; ++ ++static int au_compare_mnt(struct vfsmount *mnt, void *arg) ++{ ++ struct au_compare_mnt_args *a = arg; ++ ++ if (mnt->mnt_sb != a->sb) ++ return 0; ++ a->mnt = mntget(mnt); ++ return 1; ++} ++ ++static struct vfsmount *au_mnt_get(struct super_block *sb) ++{ ++ int err; ++ struct path root; ++ struct au_compare_mnt_args args = { ++ .sb = sb ++ }; ++ ++ get_fs_root(current->fs, &root); ++ rcu_read_lock(); ++ err = iterate_mounts(au_compare_mnt, &args, root.mnt); ++ rcu_read_unlock(); ++ path_put(&root); ++ AuDebugOn(!err); ++ AuDebugOn(!args.mnt); ++ return args.mnt; ++} ++ ++struct au_nfsd_si_lock { ++ unsigned int sigen; ++ aufs_bindex_t bindex, br_id; ++ unsigned char force_lock; ++}; ++ ++static int si_nfsd_read_lock(struct super_block *sb, ++ struct au_nfsd_si_lock *nsi_lock) ++{ ++ int err; ++ aufs_bindex_t bindex; ++ ++ si_read_lock(sb, AuLock_FLUSH); ++ ++ /* branch id may be wrapped around */ ++ err = 0; ++ bindex = au_br_index(sb, nsi_lock->br_id); ++ if (bindex >= 0 && nsi_lock->sigen + AUFS_BRANCH_MAX > au_sigen(sb)) ++ goto out; /* success */ ++ ++ err = -ESTALE; ++ bindex = -1; ++ if (!nsi_lock->force_lock) ++ si_read_unlock(sb); ++ ++out: ++ nsi_lock->bindex = bindex; ++ return err; ++} ++ ++struct find_name_by_ino { ++ struct dir_context ctx; ++ int called, found; ++ ino_t ino; ++ char *name; ++ int namelen; ++}; ++ ++static int ++find_name_by_ino(struct dir_context *ctx, const char *name, int namelen, ++ loff_t offset, u64 ino, unsigned int d_type) ++{ ++ struct find_name_by_ino *a = container_of(ctx, struct find_name_by_ino, ++ ctx); ++ ++ a->called++; ++ if (a->ino != ino) ++ return 0; ++ ++ memcpy(a->name, name, namelen); ++ a->namelen = namelen; ++ a->found = 1; ++ return 1; ++} ++ ++static struct dentry *au_lkup_by_ino(struct path *path, ino_t ino, ++ struct au_nfsd_si_lock *nsi_lock) ++{ ++ struct dentry *dentry, *parent; ++ struct file *file; ++ struct inode *dir; ++ struct find_name_by_ino arg = { ++ .ctx = { ++ .actor = find_name_by_ino ++ } ++ }; ++ int err; ++ ++ parent = path->dentry; ++ if (nsi_lock) ++ si_read_unlock(parent->d_sb); ++ file = vfsub_dentry_open(path, au_dir_roflags); ++ dentry = (void *)file; ++ if (IS_ERR(file)) ++ goto out; ++ ++ dentry = ERR_PTR(-ENOMEM); ++ arg.name = (void *)__get_free_page(GFP_NOFS); ++ if (unlikely(!arg.name)) ++ goto out_file; ++ arg.ino = ino; ++ arg.found = 0; ++ do { ++ arg.called = 0; ++ /* smp_mb(); */ ++ err = vfsub_iterate_dir(file, &arg.ctx); ++ } while (!err && !arg.found && arg.called); ++ dentry = ERR_PTR(err); ++ if (unlikely(err)) ++ goto out_name; ++ /* instead of ENOENT */ ++ dentry = ERR_PTR(-ESTALE); ++ if (!arg.found) ++ goto out_name; ++ ++ /* do not call vfsub_lkup_one() */ ++ dir = d_inode(parent); ++ dentry = vfsub_lookup_one_len_unlocked(arg.name, path, arg.namelen); ++ AuTraceErrPtr(dentry); ++ if (IS_ERR(dentry)) ++ goto out_name; ++ AuDebugOn(au_test_anon(dentry)); ++ if (unlikely(d_really_is_negative(dentry))) { ++ dput(dentry); ++ dentry = ERR_PTR(-ENOENT); ++ } ++ ++out_name: ++ free_page((unsigned long)arg.name); ++out_file: ++ fput(file); ++out: ++ if (unlikely(nsi_lock ++ && si_nfsd_read_lock(parent->d_sb, nsi_lock) < 0)) ++ if (!IS_ERR(dentry)) { ++ dput(dentry); ++ dentry = ERR_PTR(-ESTALE); ++ } ++ AuTraceErrPtr(dentry); ++ return dentry; ++} ++ ++static struct dentry *decode_by_dir_ino(struct super_block *sb, ino_t ino, ++ ino_t dir_ino, ++ struct au_nfsd_si_lock *nsi_lock) ++{ ++ struct dentry *dentry; ++ struct path path; ++ ++ if (dir_ino != AUFS_ROOT_INO) { ++ path.dentry = decode_by_ino(sb, dir_ino, 0); ++ dentry = path.dentry; ++ if (!path.dentry || IS_ERR(path.dentry)) ++ goto out; ++ AuDebugOn(au_test_anon(path.dentry)); ++ } else ++ path.dentry = dget(sb->s_root); ++ ++ path.mnt = au_mnt_get(sb); ++ dentry = au_lkup_by_ino(&path, ino, nsi_lock); ++ path_put(&path); ++ ++out: ++ AuTraceErrPtr(dentry); ++ return dentry; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++static int h_acceptable(void *expv, struct dentry *dentry) ++{ ++ return 1; ++} ++ ++static char *au_build_path(struct dentry *h_parent, struct path *h_rootpath, ++ char *buf, int len, struct super_block *sb) ++{ ++ char *p; ++ int n; ++ struct path path; ++ ++ p = d_path(h_rootpath, buf, len); ++ if (IS_ERR(p)) ++ goto out; ++ n = strlen(p); ++ ++ path.mnt = h_rootpath->mnt; ++ path.dentry = h_parent; ++ p = d_path(&path, buf, len); ++ if (IS_ERR(p)) ++ goto out; ++ if (n != 1) ++ p += n; ++ ++ path.mnt = au_mnt_get(sb); ++ path.dentry = sb->s_root; ++ p = d_path(&path, buf, len - strlen(p)); ++ mntput(path.mnt); ++ if (IS_ERR(p)) ++ goto out; ++ if (n != 1) ++ p[strlen(p)] = '/'; ++ ++out: ++ AuTraceErrPtr(p); ++ return p; ++} ++ ++static ++struct dentry *decode_by_path(struct super_block *sb, ino_t ino, __u32 *fh, ++ int fh_len, struct au_nfsd_si_lock *nsi_lock) ++{ ++ struct dentry *dentry, *h_parent, *root; ++ struct super_block *h_sb; ++ char *pathname, *p; ++ struct vfsmount *h_mnt; ++ struct au_branch *br; ++ int err; ++ struct path path; ++ ++ br = au_sbr(sb, nsi_lock->bindex); ++ h_mnt = au_br_mnt(br); ++ h_sb = h_mnt->mnt_sb; ++ /* todo: call lower fh_to_dentry()? fh_to_parent()? */ ++ lockdep_off(); ++ h_parent = exportfs_decode_fh(h_mnt, (void *)(fh + Fh_tail), ++ fh_len - Fh_tail, fh[Fh_h_type], ++ h_acceptable, /*context*/NULL); ++ lockdep_on(); ++ dentry = h_parent; ++ if (unlikely(!h_parent || IS_ERR(h_parent))) { ++ AuWarn1("%s decode_fh failed, %ld\n", ++ au_sbtype(h_sb), PTR_ERR(h_parent)); ++ goto out; ++ } ++ dentry = NULL; ++ if (unlikely(au_test_anon(h_parent))) { ++ AuWarn1("%s decode_fh returned a disconnected dentry\n", ++ au_sbtype(h_sb)); ++ goto out_h_parent; ++ } ++ ++ dentry = ERR_PTR(-ENOMEM); ++ pathname = (void *)__get_free_page(GFP_NOFS); ++ if (unlikely(!pathname)) ++ goto out_h_parent; ++ ++ root = sb->s_root; ++ path.mnt = h_mnt; ++ di_read_lock_parent(root, !AuLock_IR); ++ path.dentry = au_h_dptr(root, nsi_lock->bindex); ++ di_read_unlock(root, !AuLock_IR); ++ p = au_build_path(h_parent, &path, pathname, PAGE_SIZE, sb); ++ dentry = (void *)p; ++ if (IS_ERR(p)) ++ goto out_pathname; ++ ++ si_read_unlock(sb); ++ err = vfsub_kern_path(p, LOOKUP_FOLLOW | LOOKUP_DIRECTORY, &path); ++ dentry = ERR_PTR(err); ++ if (unlikely(err)) ++ goto out_relock; ++ ++ dentry = ERR_PTR(-ENOENT); ++ AuDebugOn(au_test_anon(path.dentry)); ++ if (unlikely(d_really_is_negative(path.dentry))) ++ goto out_path; ++ ++ if (ino != d_inode(path.dentry)->i_ino) ++ dentry = au_lkup_by_ino(&path, ino, /*nsi_lock*/NULL); ++ else ++ dentry = dget(path.dentry); ++ ++out_path: ++ path_put(&path); ++out_relock: ++ if (unlikely(si_nfsd_read_lock(sb, nsi_lock) < 0)) ++ if (!IS_ERR(dentry)) { ++ dput(dentry); ++ dentry = ERR_PTR(-ESTALE); ++ } ++out_pathname: ++ free_page((unsigned long)pathname); ++out_h_parent: ++ dput(h_parent); ++out: ++ AuTraceErrPtr(dentry); ++ return dentry; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++static struct dentry * ++aufs_fh_to_dentry(struct super_block *sb, struct fid *fid, int fh_len, ++ int fh_type) ++{ ++ struct dentry *dentry; ++ __u32 *fh = fid->raw; ++ struct au_branch *br; ++ ino_t ino, dir_ino; ++ struct au_nfsd_si_lock nsi_lock = { ++ .force_lock = 0 ++ }; ++ ++ dentry = ERR_PTR(-ESTALE); ++ /* it should never happen, but the file handle is unreliable */ ++ if (unlikely(fh_len < Fh_tail)) ++ goto out; ++ nsi_lock.sigen = fh[Fh_sigen]; ++ nsi_lock.br_id = fh[Fh_br_id]; ++ ++ /* branch id may be wrapped around */ ++ br = NULL; ++ if (unlikely(si_nfsd_read_lock(sb, &nsi_lock))) ++ goto out; ++ nsi_lock.force_lock = 1; ++ ++ /* is this inode still cached? */ ++ ino = decode_ino(fh + Fh_ino); ++ /* it should never happen */ ++ if (unlikely(ino == AUFS_ROOT_INO)) ++ goto out_unlock; ++ ++ dir_ino = decode_ino(fh + Fh_dir_ino); ++ dentry = decode_by_ino(sb, ino, dir_ino); ++ if (IS_ERR(dentry)) ++ goto out_unlock; ++ if (dentry) ++ goto accept; ++ ++ /* is the parent dir cached? */ ++ br = au_sbr(sb, nsi_lock.bindex); ++ au_lcnt_inc(&br->br_nfiles); ++ dentry = decode_by_dir_ino(sb, ino, dir_ino, &nsi_lock); ++ if (IS_ERR(dentry)) ++ goto out_unlock; ++ if (dentry) ++ goto accept; ++ ++ /* lookup path */ ++ dentry = decode_by_path(sb, ino, fh, fh_len, &nsi_lock); ++ if (IS_ERR(dentry)) ++ goto out_unlock; ++ if (unlikely(!dentry)) ++ /* todo?: make it ESTALE */ ++ goto out_unlock; ++ ++accept: ++ if (!au_digen_test(dentry, au_sigen(sb)) ++ && d_inode(dentry)->i_generation == fh[Fh_igen]) ++ goto out_unlock; /* success */ ++ ++ dput(dentry); ++ dentry = ERR_PTR(-ESTALE); ++out_unlock: ++ if (br) ++ au_lcnt_dec(&br->br_nfiles); ++ si_read_unlock(sb); ++out: ++ AuTraceErrPtr(dentry); ++ return dentry; ++} ++ ++#if 0 /* reserved for future use */ ++/* support subtreecheck option */ ++static struct dentry *aufs_fh_to_parent(struct super_block *sb, struct fid *fid, ++ int fh_len, int fh_type) ++{ ++ struct dentry *parent; ++ __u32 *fh = fid->raw; ++ ino_t dir_ino; ++ ++ dir_ino = decode_ino(fh + Fh_dir_ino); ++ parent = decode_by_ino(sb, dir_ino, 0); ++ if (IS_ERR(parent)) ++ goto out; ++ if (!parent) ++ parent = decode_by_path(sb, au_br_index(sb, fh[Fh_br_id]), ++ dir_ino, fh, fh_len); ++ ++out: ++ AuTraceErrPtr(parent); ++ return parent; ++} ++#endif ++ ++/* ---------------------------------------------------------------------- */ ++ ++static int aufs_encode_fh(struct inode *inode, __u32 *fh, int *max_len, ++ struct inode *dir) ++{ ++ int err; ++ aufs_bindex_t bindex; ++ struct super_block *sb, *h_sb; ++ struct dentry *dentry, *parent, *h_parent; ++ struct inode *h_dir; ++ struct au_branch *br; ++ ++ err = -ENOSPC; ++ if (unlikely(*max_len <= Fh_tail)) { ++ AuWarn1("NFSv2 client (max_len %d)?\n", *max_len); ++ goto out; ++ } ++ ++ err = FILEID_ROOT; ++ if (inode->i_ino == AUFS_ROOT_INO) { ++ AuDebugOn(inode->i_ino != AUFS_ROOT_INO); ++ goto out; ++ } ++ ++ h_parent = NULL; ++ sb = inode->i_sb; ++ err = si_read_lock(sb, AuLock_FLUSH); ++ if (unlikely(err)) ++ goto out; ++ ++#ifdef CONFIG_AUFS_DEBUG ++ if (unlikely(!au_opt_test(au_mntflags(sb), XINO))) ++ AuWarn1("NFS-exporting requires xino\n"); ++#endif ++ err = -EIO; ++ parent = NULL; ++ ii_read_lock_child(inode); ++ bindex = au_ibtop(inode); ++ if (!dir) { ++ dentry = d_find_any_alias(inode); ++ if (unlikely(!dentry)) ++ goto out_unlock; ++ AuDebugOn(au_test_anon(dentry)); ++ parent = dget_parent(dentry); ++ dput(dentry); ++ if (unlikely(!parent)) ++ goto out_unlock; ++ if (d_really_is_positive(parent)) ++ dir = d_inode(parent); ++ } ++ ++ ii_read_lock_parent(dir); ++ h_dir = au_h_iptr(dir, bindex); ++ ii_read_unlock(dir); ++ if (unlikely(!h_dir)) ++ goto out_parent; ++ h_parent = d_find_any_alias(h_dir); ++ if (unlikely(!h_parent)) ++ goto out_hparent; ++ ++ err = -EPERM; ++ br = au_sbr(sb, bindex); ++ h_sb = au_br_sb(br); ++ if (unlikely(!h_sb->s_export_op)) { ++ AuErr1("%s branch is not exportable\n", au_sbtype(h_sb)); ++ goto out_hparent; ++ } ++ ++ fh[Fh_br_id] = br->br_id; ++ fh[Fh_sigen] = au_sigen(sb); ++ encode_ino(fh + Fh_ino, inode->i_ino); ++ encode_ino(fh + Fh_dir_ino, dir->i_ino); ++ fh[Fh_igen] = inode->i_generation; ++ ++ *max_len -= Fh_tail; ++ fh[Fh_h_type] = exportfs_encode_fh(h_parent, (void *)(fh + Fh_tail), ++ max_len, ++ /*connectable or subtreecheck*/0); ++ err = fh[Fh_h_type]; ++ *max_len += Fh_tail; ++ /* todo: macros? */ ++ if (err != FILEID_INVALID) ++ err = 99; ++ else ++ AuWarn1("%s encode_fh failed\n", au_sbtype(h_sb)); ++ ++out_hparent: ++ dput(h_parent); ++out_parent: ++ dput(parent); ++out_unlock: ++ ii_read_unlock(inode); ++ si_read_unlock(sb); ++out: ++ if (unlikely(err < 0)) ++ err = FILEID_INVALID; ++ return err; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++static int aufs_commit_metadata(struct inode *inode) ++{ ++ int err; ++ aufs_bindex_t bindex; ++ struct super_block *sb; ++ struct inode *h_inode; ++ int (*f)(struct inode *inode); ++ ++ sb = inode->i_sb; ++ si_read_lock(sb, AuLock_FLUSH | AuLock_NOPLMW); ++ ii_write_lock_child(inode); ++ bindex = au_ibtop(inode); ++ AuDebugOn(bindex < 0); ++ h_inode = au_h_iptr(inode, bindex); ++ ++ f = h_inode->i_sb->s_export_op->commit_metadata; ++ if (f) ++ err = f(h_inode); ++ else ++ err = sync_inode_metadata(h_inode, /*wait*/1); ++ ++ au_cpup_attr_timesizes(inode); ++ ii_write_unlock(inode); ++ si_read_unlock(sb); ++ return err; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++static struct export_operations aufs_export_op = { ++ .fh_to_dentry = aufs_fh_to_dentry, ++ /* .fh_to_parent = aufs_fh_to_parent, */ ++ .encode_fh = aufs_encode_fh, ++ .commit_metadata = aufs_commit_metadata ++}; ++ ++void au_export_init(struct super_block *sb) ++{ ++ struct au_sbinfo *sbinfo; ++ __u32 u; ++ ++ BUILD_BUG_ON_MSG(IS_BUILTIN(CONFIG_AUFS_FS) ++ && IS_MODULE(CONFIG_EXPORTFS), ++ AUFS_NAME ": unsupported configuration " ++ "CONFIG_EXPORTFS=m and CONFIG_AUFS_FS=y"); ++ ++ sb->s_export_op = &aufs_export_op; ++ sbinfo = au_sbi(sb); ++ sbinfo->si_xigen = NULL; ++ get_random_bytes(&u, sizeof(u)); ++ BUILD_BUG_ON(sizeof(u) != sizeof(int)); ++ atomic_set(&sbinfo->si_xigen_next, u); ++} +diff -Naur linux-5.15/fs/aufs/fhsm.c aufs5-linux-aufs5.15/fs/aufs/fhsm.c +--- linux-5.15/fs/aufs/fhsm.c 1970-01-01 03:00:00.000000000 +0300 ++++ aufs5-linux-aufs5.15/fs/aufs/fhsm.c 2022-03-07 13:48:09.000000000 +0300 +@@ -0,0 +1,413 @@ ++// SPDX-License-Identifier: GPL-2.0 ++/* ++ * Copyright (C) 2011-2021 Junjiro R. Okajima ++ */ ++ ++/* ++ * File-based Hierarchy Storage Management ++ */ ++ ++#include ++#include ++#include ++#include ++#include "aufs.h" ++ ++static aufs_bindex_t au_fhsm_bottom(struct super_block *sb) ++{ ++ struct au_sbinfo *sbinfo; ++ struct au_fhsm *fhsm; ++ ++ SiMustAnyLock(sb); ++ ++ sbinfo = au_sbi(sb); ++ fhsm = &sbinfo->si_fhsm; ++ AuDebugOn(!fhsm); ++ return fhsm->fhsm_bottom; ++} ++ ++void au_fhsm_set_bottom(struct super_block *sb, aufs_bindex_t bindex) ++{ ++ struct au_sbinfo *sbinfo; ++ struct au_fhsm *fhsm; ++ ++ SiMustWriteLock(sb); ++ ++ sbinfo = au_sbi(sb); ++ fhsm = &sbinfo->si_fhsm; ++ AuDebugOn(!fhsm); ++ fhsm->fhsm_bottom = bindex; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++static int au_fhsm_test_jiffy(struct au_sbinfo *sbinfo, struct au_branch *br) ++{ ++ struct au_br_fhsm *bf; ++ ++ bf = br->br_fhsm; ++ MtxMustLock(&bf->bf_lock); ++ ++ return !bf->bf_readable ++ || time_after(jiffies, ++ bf->bf_jiffy + sbinfo->si_fhsm.fhsm_expire); ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++static void au_fhsm_notify(struct super_block *sb, int val) ++{ ++ struct au_sbinfo *sbinfo; ++ struct au_fhsm *fhsm; ++ ++ SiMustAnyLock(sb); ++ ++ sbinfo = au_sbi(sb); ++ fhsm = &sbinfo->si_fhsm; ++ if (au_fhsm_pid(fhsm) ++ && atomic_read(&fhsm->fhsm_readable) != -1) { ++ atomic_set(&fhsm->fhsm_readable, val); ++ if (val) ++ wake_up(&fhsm->fhsm_wqh); ++ } ++} ++ ++static int au_fhsm_stfs(struct super_block *sb, aufs_bindex_t bindex, ++ struct aufs_stfs *rstfs, int do_lock, int do_notify) ++{ ++ int err; ++ struct au_branch *br; ++ struct au_br_fhsm *bf; ++ ++ br = au_sbr(sb, bindex); ++ AuDebugOn(au_br_rdonly(br)); ++ bf = br->br_fhsm; ++ AuDebugOn(!bf); ++ ++ if (do_lock) ++ mutex_lock(&bf->bf_lock); ++ else ++ MtxMustLock(&bf->bf_lock); ++ ++ /* sb->s_root for NFS is unreliable */ ++ err = au_br_stfs(br, &bf->bf_stfs); ++ if (unlikely(err)) { ++ AuErr1("FHSM failed (%d), b%d, ignored.\n", bindex, err); ++ goto out; ++ } ++ ++ bf->bf_jiffy = jiffies; ++ bf->bf_readable = 1; ++ if (do_notify) ++ au_fhsm_notify(sb, /*val*/1); ++ if (rstfs) ++ *rstfs = bf->bf_stfs; ++ ++out: ++ if (do_lock) ++ mutex_unlock(&bf->bf_lock); ++ au_fhsm_notify(sb, /*val*/1); ++ ++ return err; ++} ++ ++void au_fhsm_wrote(struct super_block *sb, aufs_bindex_t bindex, int force) ++{ ++ int err; ++ struct au_sbinfo *sbinfo; ++ struct au_fhsm *fhsm; ++ struct au_branch *br; ++ struct au_br_fhsm *bf; ++ ++ AuDbg("b%d, force %d\n", bindex, force); ++ SiMustAnyLock(sb); ++ ++ sbinfo = au_sbi(sb); ++ fhsm = &sbinfo->si_fhsm; ++ if (!au_ftest_si(sbinfo, FHSM) ++ || fhsm->fhsm_bottom == bindex) ++ return; ++ ++ br = au_sbr(sb, bindex); ++ bf = br->br_fhsm; ++ AuDebugOn(!bf); ++ mutex_lock(&bf->bf_lock); ++ if (force ++ || au_fhsm_pid(fhsm) ++ || au_fhsm_test_jiffy(sbinfo, br)) ++ err = au_fhsm_stfs(sb, bindex, /*rstfs*/NULL, /*do_lock*/0, ++ /*do_notify*/1); ++ mutex_unlock(&bf->bf_lock); ++} ++ ++void au_fhsm_wrote_all(struct super_block *sb, int force) ++{ ++ aufs_bindex_t bindex, bbot; ++ struct au_branch *br; ++ ++ /* exclude the bottom */ ++ bbot = au_fhsm_bottom(sb); ++ for (bindex = 0; bindex < bbot; bindex++) { ++ br = au_sbr(sb, bindex); ++ if (au_br_fhsm(br->br_perm)) ++ au_fhsm_wrote(sb, bindex, force); ++ } ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++static __poll_t au_fhsm_poll(struct file *file, struct poll_table_struct *wait) ++{ ++ __poll_t mask; ++ struct au_sbinfo *sbinfo; ++ struct au_fhsm *fhsm; ++ ++ mask = 0; ++ sbinfo = file->private_data; ++ fhsm = &sbinfo->si_fhsm; ++ poll_wait(file, &fhsm->fhsm_wqh, wait); ++ if (atomic_read(&fhsm->fhsm_readable)) ++ mask = EPOLLIN /* | EPOLLRDNORM */; ++ ++ if (!mask) ++ AuDbg("mask 0x%x\n", mask); ++ return mask; ++} ++ ++static int au_fhsm_do_read_one(struct aufs_stbr __user *stbr, ++ struct aufs_stfs *stfs, __s16 brid) ++{ ++ int err; ++ ++ err = copy_to_user(&stbr->stfs, stfs, sizeof(*stfs)); ++ if (!err) ++ err = __put_user(brid, &stbr->brid); ++ if (unlikely(err)) ++ err = -EFAULT; ++ ++ return err; ++} ++ ++static ssize_t au_fhsm_do_read(struct super_block *sb, ++ struct aufs_stbr __user *stbr, size_t count) ++{ ++ ssize_t err; ++ int nstbr; ++ aufs_bindex_t bindex, bbot; ++ struct au_branch *br; ++ struct au_br_fhsm *bf; ++ ++ /* except the bottom branch */ ++ err = 0; ++ nstbr = 0; ++ bbot = au_fhsm_bottom(sb); ++ for (bindex = 0; !err && bindex < bbot; bindex++) { ++ br = au_sbr(sb, bindex); ++ if (!au_br_fhsm(br->br_perm)) ++ continue; ++ ++ bf = br->br_fhsm; ++ mutex_lock(&bf->bf_lock); ++ if (bf->bf_readable) { ++ err = -EFAULT; ++ if (count >= sizeof(*stbr)) ++ err = au_fhsm_do_read_one(stbr++, &bf->bf_stfs, ++ br->br_id); ++ if (!err) { ++ bf->bf_readable = 0; ++ count -= sizeof(*stbr); ++ nstbr++; ++ } ++ } ++ mutex_unlock(&bf->bf_lock); ++ } ++ if (!err) ++ err = sizeof(*stbr) * nstbr; ++ ++ return err; ++} ++ ++static ssize_t au_fhsm_read(struct file *file, char __user *buf, size_t count, ++ loff_t *pos) ++{ ++ ssize_t err; ++ int readable; ++ aufs_bindex_t nfhsm, bindex, bbot; ++ struct au_sbinfo *sbinfo; ++ struct au_fhsm *fhsm; ++ struct au_branch *br; ++ struct super_block *sb; ++ ++ err = 0; ++ sbinfo = file->private_data; ++ fhsm = &sbinfo->si_fhsm; ++need_data: ++ spin_lock_irq(&fhsm->fhsm_wqh.lock); ++ if (!atomic_read(&fhsm->fhsm_readable)) { ++ if (vfsub_file_flags(file) & O_NONBLOCK) ++ err = -EAGAIN; ++ else ++ err = wait_event_interruptible_locked_irq ++ (fhsm->fhsm_wqh, ++ atomic_read(&fhsm->fhsm_readable)); ++ } ++ spin_unlock_irq(&fhsm->fhsm_wqh.lock); ++ if (unlikely(err)) ++ goto out; ++ ++ /* sb may already be dead */ ++ au_rw_read_lock(&sbinfo->si_rwsem); ++ readable = atomic_read(&fhsm->fhsm_readable); ++ if (readable > 0) { ++ sb = sbinfo->si_sb; ++ AuDebugOn(!sb); ++ /* exclude the bottom branch */ ++ nfhsm = 0; ++ bbot = au_fhsm_bottom(sb); ++ for (bindex = 0; bindex < bbot; bindex++) { ++ br = au_sbr(sb, bindex); ++ if (au_br_fhsm(br->br_perm)) ++ nfhsm++; ++ } ++ err = -EMSGSIZE; ++ if (nfhsm * sizeof(struct aufs_stbr) <= count) { ++ atomic_set(&fhsm->fhsm_readable, 0); ++ err = au_fhsm_do_read(sbinfo->si_sb, (void __user *)buf, ++ count); ++ } ++ } ++ au_rw_read_unlock(&sbinfo->si_rwsem); ++ if (!readable) ++ goto need_data; ++ ++out: ++ return err; ++} ++ ++static int au_fhsm_release(struct inode *inode, struct file *file) ++{ ++ struct au_sbinfo *sbinfo; ++ struct au_fhsm *fhsm; ++ ++ /* sb may already be dead */ ++ sbinfo = file->private_data; ++ fhsm = &sbinfo->si_fhsm; ++ spin_lock(&fhsm->fhsm_spin); ++ fhsm->fhsm_pid = 0; ++ spin_unlock(&fhsm->fhsm_spin); ++ kobject_put(&sbinfo->si_kobj); ++ ++ return 0; ++} ++ ++static const struct file_operations au_fhsm_fops = { ++ .owner = THIS_MODULE, ++ .llseek = noop_llseek, ++ .read = au_fhsm_read, ++ .poll = au_fhsm_poll, ++ .release = au_fhsm_release ++}; ++ ++int au_fhsm_fd(struct super_block *sb, int oflags) ++{ ++ int err, fd; ++ struct au_sbinfo *sbinfo; ++ struct au_fhsm *fhsm; ++ ++ err = -EPERM; ++ if (unlikely(!capable(CAP_SYS_ADMIN))) ++ goto out; ++ ++ err = -EINVAL; ++ if (unlikely(oflags & ~(O_CLOEXEC | O_NONBLOCK))) ++ goto out; ++ ++ err = 0; ++ sbinfo = au_sbi(sb); ++ fhsm = &sbinfo->si_fhsm; ++ spin_lock(&fhsm->fhsm_spin); ++ if (!fhsm->fhsm_pid) ++ fhsm->fhsm_pid = current->pid; ++ else ++ err = -EBUSY; ++ spin_unlock(&fhsm->fhsm_spin); ++ if (unlikely(err)) ++ goto out; ++ ++ oflags |= O_RDONLY; ++ /* oflags |= FMODE_NONOTIFY; */ ++ fd = anon_inode_getfd("[aufs_fhsm]", &au_fhsm_fops, sbinfo, oflags); ++ err = fd; ++ if (unlikely(fd < 0)) ++ goto out_pid; ++ ++ /* succeed regardless 'fhsm' status */ ++ kobject_get(&sbinfo->si_kobj); ++ si_noflush_read_lock(sb); ++ if (au_ftest_si(sbinfo, FHSM)) ++ au_fhsm_wrote_all(sb, /*force*/0); ++ si_read_unlock(sb); ++ goto out; /* success */ ++ ++out_pid: ++ spin_lock(&fhsm->fhsm_spin); ++ fhsm->fhsm_pid = 0; ++ spin_unlock(&fhsm->fhsm_spin); ++out: ++ AuTraceErr(err); ++ return err; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++int au_fhsm_br_alloc(struct au_branch *br) ++{ ++ int err; ++ ++ err = 0; ++ br->br_fhsm = kmalloc(sizeof(*br->br_fhsm), GFP_NOFS); ++ if (br->br_fhsm) ++ au_br_fhsm_init(br->br_fhsm); ++ else ++ err = -ENOMEM; ++ ++ return err; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++void au_fhsm_fin(struct super_block *sb) ++{ ++ au_fhsm_notify(sb, /*val*/-1); ++} ++ ++void au_fhsm_init(struct au_sbinfo *sbinfo) ++{ ++ struct au_fhsm *fhsm; ++ ++ fhsm = &sbinfo->si_fhsm; ++ spin_lock_init(&fhsm->fhsm_spin); ++ init_waitqueue_head(&fhsm->fhsm_wqh); ++ atomic_set(&fhsm->fhsm_readable, 0); ++ fhsm->fhsm_expire ++ = msecs_to_jiffies(AUFS_FHSM_CACHE_DEF_SEC * MSEC_PER_SEC); ++ fhsm->fhsm_bottom = -1; ++} ++ ++void au_fhsm_set(struct au_sbinfo *sbinfo, unsigned int sec) ++{ ++ sbinfo->si_fhsm.fhsm_expire ++ = msecs_to_jiffies(sec * MSEC_PER_SEC); ++} ++ ++void au_fhsm_show(struct seq_file *seq, struct au_sbinfo *sbinfo) ++{ ++ unsigned int u; ++ ++ if (!au_ftest_si(sbinfo, FHSM)) ++ return; ++ ++ u = jiffies_to_msecs(sbinfo->si_fhsm.fhsm_expire) / MSEC_PER_SEC; ++ if (u != AUFS_FHSM_CACHE_DEF_SEC) ++ seq_printf(seq, ",fhsm_sec=%u", u); ++} +diff -Naur linux-5.15/fs/aufs/file.c aufs5-linux-aufs5.15/fs/aufs/file.c +--- linux-5.15/fs/aufs/file.c 1970-01-01 03:00:00.000000000 +0300 ++++ aufs5-linux-aufs5.15/fs/aufs/file.c 2022-03-07 13:48:09.000000000 +0300 +@@ -0,0 +1,850 @@ ++// SPDX-License-Identifier: GPL-2.0 ++/* ++ * Copyright (C) 2005-2021 Junjiro R. Okajima ++ */ ++ ++/* ++ * handling file/dir, and address_space operation ++ */ ++ ++#ifdef CONFIG_AUFS_DEBUG ++#include ++#endif ++#include ++#include "aufs.h" ++ ++/* drop flags for writing */ ++unsigned int au_file_roflags(unsigned int flags) ++{ ++ flags &= ~(O_WRONLY | O_RDWR | O_APPEND | O_CREAT | O_TRUNC); ++ flags |= O_RDONLY | O_NOATIME; ++ return flags; ++} ++ ++/* common functions to regular file and dir */ ++struct file *au_h_open(struct dentry *dentry, aufs_bindex_t bindex, int flags, ++ struct file *file, int force_wr) ++{ ++ struct file *h_file; ++ struct dentry *h_dentry; ++ struct inode *h_inode; ++ struct super_block *sb; ++ struct au_branch *br; ++ struct path h_path; ++ int err; ++ ++ /* a race condition can happen between open and unlink/rmdir */ ++ h_file = ERR_PTR(-ENOENT); ++ h_dentry = au_h_dptr(dentry, bindex); ++ if (au_test_nfsd() && (!h_dentry || d_is_negative(h_dentry))) ++ goto out; ++ h_inode = d_inode(h_dentry); ++ spin_lock(&h_dentry->d_lock); ++ err = (!d_unhashed(dentry) && d_unlinked(h_dentry)) ++ /* || !d_inode(dentry)->i_nlink */ ++ ; ++ spin_unlock(&h_dentry->d_lock); ++ if (unlikely(err)) ++ goto out; ++ ++ sb = dentry->d_sb; ++ br = au_sbr(sb, bindex); ++ err = au_br_test_oflag(flags, br); ++ h_file = ERR_PTR(err); ++ if (unlikely(err)) ++ goto out; ++ ++ /* drop flags for writing */ ++ if (au_test_ro(sb, bindex, d_inode(dentry))) { ++ if (force_wr && !(flags & O_WRONLY)) ++ force_wr = 0; ++ flags = au_file_roflags(flags); ++ if (force_wr) { ++ h_file = ERR_PTR(-EROFS); ++ flags = au_file_roflags(flags); ++ if (unlikely(vfsub_native_ro(h_inode) ++ || IS_APPEND(h_inode))) ++ goto out; ++ flags &= ~O_ACCMODE; ++ flags |= O_WRONLY; ++ } ++ } ++ flags &= ~O_CREAT; ++ au_lcnt_inc(&br->br_nfiles); ++ h_path.dentry = h_dentry; ++ h_path.mnt = au_br_mnt(br); ++ h_file = vfsub_dentry_open(&h_path, flags); ++ if (IS_ERR(h_file)) ++ goto out_br; ++ ++ if (flags & __FMODE_EXEC) { ++ err = deny_write_access(h_file); ++ if (unlikely(err)) { ++ fput(h_file); ++ h_file = ERR_PTR(err); ++ goto out_br; ++ } ++ } ++ fsnotify_open(h_file); ++ goto out; /* success */ ++ ++out_br: ++ au_lcnt_dec(&br->br_nfiles); ++out: ++ return h_file; ++} ++ ++static int au_cmoo(struct dentry *dentry) ++{ ++ int err, cmoo, matched; ++ unsigned int udba; ++ struct path h_path; ++ struct au_pin pin; ++ struct au_cp_generic cpg = { ++ .dentry = dentry, ++ .bdst = -1, ++ .bsrc = -1, ++ .len = -1, ++ .pin = &pin, ++ .flags = AuCpup_DTIME | AuCpup_HOPEN ++ }; ++ struct inode *delegated; ++ struct super_block *sb; ++ struct au_sbinfo *sbinfo; ++ struct au_fhsm *fhsm; ++ pid_t pid; ++ struct au_branch *br; ++ struct dentry *parent; ++ struct au_hinode *hdir; ++ ++ DiMustWriteLock(dentry); ++ IiMustWriteLock(d_inode(dentry)); ++ ++ err = 0; ++ if (IS_ROOT(dentry)) ++ goto out; ++ cpg.bsrc = au_dbtop(dentry); ++ if (!cpg.bsrc) ++ goto out; ++ ++ sb = dentry->d_sb; ++ sbinfo = au_sbi(sb); ++ fhsm = &sbinfo->si_fhsm; ++ pid = au_fhsm_pid(fhsm); ++ rcu_read_lock(); ++ matched = (pid ++ && (current->pid == pid ++ || rcu_dereference(current->real_parent)->pid == pid)); ++ rcu_read_unlock(); ++ if (matched) ++ goto out; ++ ++ br = au_sbr(sb, cpg.bsrc); ++ cmoo = au_br_cmoo(br->br_perm); ++ if (!cmoo) ++ goto out; ++ if (!d_is_reg(dentry)) ++ cmoo &= AuBrAttr_COO_ALL; ++ if (!cmoo) ++ goto out; ++ ++ parent = dget_parent(dentry); ++ di_write_lock_parent(parent); ++ err = au_wbr_do_copyup_bu(dentry, cpg.bsrc - 1); ++ cpg.bdst = err; ++ if (unlikely(err < 0)) { ++ err = 0; /* there is no upper writable branch */ ++ goto out_dgrade; ++ } ++ AuDbg("bsrc %d, bdst %d\n", cpg.bsrc, cpg.bdst); ++ ++ /* do not respect the coo attrib for the target branch */ ++ err = au_cpup_dirs(dentry, cpg.bdst); ++ if (unlikely(err)) ++ goto out_dgrade; ++ ++ di_downgrade_lock(parent, AuLock_IR); ++ udba = au_opt_udba(sb); ++ err = au_pin(&pin, dentry, cpg.bdst, udba, ++ AuPin_DI_LOCKED | AuPin_MNT_WRITE); ++ if (unlikely(err)) ++ goto out_parent; ++ ++ err = au_sio_cpup_simple(&cpg); ++ au_unpin(&pin); ++ if (unlikely(err)) ++ goto out_parent; ++ if (!(cmoo & AuBrWAttr_MOO)) ++ goto out_parent; /* success */ ++ ++ err = au_pin(&pin, dentry, cpg.bsrc, udba, ++ AuPin_DI_LOCKED | AuPin_MNT_WRITE); ++ if (unlikely(err)) ++ goto out_parent; ++ ++ h_path.mnt = au_br_mnt(br); ++ h_path.dentry = au_h_dptr(dentry, cpg.bsrc); ++ hdir = au_hi(d_inode(parent), cpg.bsrc); ++ delegated = NULL; ++ err = vfsub_unlink(hdir->hi_inode, &h_path, &delegated, /*force*/1); ++ au_unpin(&pin); ++ /* todo: keep h_dentry or not? */ ++ if (unlikely(err == -EWOULDBLOCK)) { ++ pr_warn("cannot retry for NFSv4 delegation" ++ " for an internal unlink\n"); ++ iput(delegated); ++ } ++ if (unlikely(err)) { ++ pr_err("unlink %pd after coo failed (%d), ignored\n", ++ dentry, err); ++ err = 0; ++ } ++ goto out_parent; /* success */ ++ ++out_dgrade: ++ di_downgrade_lock(parent, AuLock_IR); ++out_parent: ++ di_read_unlock(parent, AuLock_IR); ++ dput(parent); ++out: ++ AuTraceErr(err); ++ return err; ++} ++ ++int au_do_open(struct file *file, struct au_do_open_args *args) ++{ ++ int err, aopen = args->aopen; ++ struct dentry *dentry; ++ struct au_finfo *finfo; ++ ++ if (!aopen) ++ err = au_finfo_init(file, args->fidir); ++ else { ++ lockdep_off(); ++ err = au_finfo_init(file, args->fidir); ++ lockdep_on(); ++ } ++ if (unlikely(err)) ++ goto out; ++ ++ dentry = file->f_path.dentry; ++ AuDebugOn(IS_ERR_OR_NULL(dentry)); ++ di_write_lock_child(dentry); ++ err = au_cmoo(dentry); ++ di_downgrade_lock(dentry, AuLock_IR); ++ if (!err) { ++ if (!aopen) ++ err = args->open(file, vfsub_file_flags(file), NULL); ++ else { ++ lockdep_off(); ++ err = args->open(file, vfsub_file_flags(file), ++ args->h_file); ++ lockdep_on(); ++ } ++ } ++ di_read_unlock(dentry, AuLock_IR); ++ ++ finfo = au_fi(file); ++ if (!err) { ++ finfo->fi_file = file; ++ au_hbl_add(&finfo->fi_hlist, ++ &au_sbi(file->f_path.dentry->d_sb)->si_files); ++ } ++ if (!aopen) ++ fi_write_unlock(file); ++ else { ++ lockdep_off(); ++ fi_write_unlock(file); ++ lockdep_on(); ++ } ++ if (unlikely(err)) { ++ finfo->fi_hdir = NULL; ++ au_finfo_fin(file); ++ } ++ ++out: ++ AuTraceErr(err); ++ return err; ++} ++ ++int au_reopen_nondir(struct file *file) ++{ ++ int err; ++ aufs_bindex_t btop; ++ struct dentry *dentry; ++ struct au_branch *br; ++ struct file *h_file, *h_file_tmp; ++ ++ dentry = file->f_path.dentry; ++ btop = au_dbtop(dentry); ++ br = au_sbr(dentry->d_sb, btop); ++ h_file_tmp = NULL; ++ if (au_fbtop(file) == btop) { ++ h_file = au_hf_top(file); ++ if (file->f_mode == h_file->f_mode) ++ return 0; /* success */ ++ h_file_tmp = h_file; ++ get_file(h_file_tmp); ++ au_lcnt_inc(&br->br_nfiles); ++ au_set_h_fptr(file, btop, NULL); ++ } ++ AuDebugOn(au_fi(file)->fi_hdir); ++ /* ++ * it can happen ++ * file exists on both of rw and ro ++ * open --> dbtop and fbtop are both 0 ++ * prepend a branch as rw, "rw" become ro ++ * remove rw/file ++ * delete the top branch, "rw" becomes rw again ++ * --> dbtop is 1, fbtop is still 0 ++ * write --> fbtop is 0 but dbtop is 1 ++ */ ++ /* AuDebugOn(au_fbtop(file) < btop); */ ++ ++ h_file = au_h_open(dentry, btop, vfsub_file_flags(file) & ~O_TRUNC, ++ file, /*force_wr*/0); ++ err = PTR_ERR(h_file); ++ if (IS_ERR(h_file)) { ++ if (h_file_tmp) { ++ /* revert */ ++ au_set_h_fptr(file, btop, h_file_tmp); ++ h_file_tmp = NULL; ++ } ++ goto out; /* todo: close all? */ ++ } ++ ++ err = 0; ++ au_set_fbtop(file, btop); ++ au_set_h_fptr(file, btop, h_file); ++ au_update_figen(file); ++ /* todo: necessary? */ ++ /* file->f_ra = h_file->f_ra; */ ++ ++out: ++ if (h_file_tmp) { ++ fput(h_file_tmp); ++ au_lcnt_dec(&br->br_nfiles); ++ } ++ return err; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++static int au_reopen_wh(struct file *file, aufs_bindex_t btgt, ++ struct dentry *hi_wh) ++{ ++ int err; ++ aufs_bindex_t btop; ++ struct au_dinfo *dinfo; ++ struct dentry *h_dentry; ++ struct au_hdentry *hdp; ++ ++ dinfo = au_di(file->f_path.dentry); ++ AuRwMustWriteLock(&dinfo->di_rwsem); ++ ++ btop = dinfo->di_btop; ++ dinfo->di_btop = btgt; ++ hdp = au_hdentry(dinfo, btgt); ++ h_dentry = hdp->hd_dentry; ++ hdp->hd_dentry = hi_wh; ++ err = au_reopen_nondir(file); ++ hdp->hd_dentry = h_dentry; ++ dinfo->di_btop = btop; ++ ++ return err; ++} ++ ++static int au_ready_to_write_wh(struct file *file, loff_t len, ++ aufs_bindex_t bcpup, struct au_pin *pin) ++{ ++ int err; ++ struct inode *inode, *h_inode; ++ struct dentry *h_dentry, *hi_wh; ++ struct au_cp_generic cpg = { ++ .dentry = file->f_path.dentry, ++ .bdst = bcpup, ++ .bsrc = -1, ++ .len = len, ++ .pin = pin ++ }; ++ ++ au_update_dbtop(cpg.dentry); ++ inode = d_inode(cpg.dentry); ++ h_inode = NULL; ++ if (au_dbtop(cpg.dentry) <= bcpup ++ && au_dbbot(cpg.dentry) >= bcpup) { ++ h_dentry = au_h_dptr(cpg.dentry, bcpup); ++ if (h_dentry && d_is_positive(h_dentry)) ++ h_inode = d_inode(h_dentry); ++ } ++ hi_wh = au_hi_wh(inode, bcpup); ++ if (!hi_wh && !h_inode) ++ err = au_sio_cpup_wh(&cpg, file); ++ else ++ /* already copied-up after unlink */ ++ err = au_reopen_wh(file, bcpup, hi_wh); ++ ++ if (!err ++ && (inode->i_nlink > 1 ++ || (inode->i_state & I_LINKABLE)) ++ && au_opt_test(au_mntflags(cpg.dentry->d_sb), PLINK)) ++ au_plink_append(inode, bcpup, au_h_dptr(cpg.dentry, bcpup)); ++ ++ return err; ++} ++ ++/* ++ * prepare the @file for writing. ++ */ ++int au_ready_to_write(struct file *file, loff_t len, struct au_pin *pin) ++{ ++ int err; ++ aufs_bindex_t dbtop; ++ struct dentry *parent; ++ struct inode *inode; ++ struct super_block *sb; ++ struct file *h_file; ++ struct au_cp_generic cpg = { ++ .dentry = file->f_path.dentry, ++ .bdst = -1, ++ .bsrc = -1, ++ .len = len, ++ .pin = pin, ++ .flags = AuCpup_DTIME ++ }; ++ ++ sb = cpg.dentry->d_sb; ++ inode = d_inode(cpg.dentry); ++ cpg.bsrc = au_fbtop(file); ++ err = au_test_ro(sb, cpg.bsrc, inode); ++ if (!err && (au_hf_top(file)->f_mode & FMODE_WRITE)) { ++ err = au_pin(pin, cpg.dentry, cpg.bsrc, AuOpt_UDBA_NONE, ++ /*flags*/0); ++ goto out; ++ } ++ ++ /* need to cpup or reopen */ ++ parent = dget_parent(cpg.dentry); ++ di_write_lock_parent(parent); ++ err = AuWbrCopyup(au_sbi(sb), cpg.dentry); ++ cpg.bdst = err; ++ if (unlikely(err < 0)) ++ goto out_dgrade; ++ err = 0; ++ ++ if (!d_unhashed(cpg.dentry) && !au_h_dptr(parent, cpg.bdst)) { ++ err = au_cpup_dirs(cpg.dentry, cpg.bdst); ++ if (unlikely(err)) ++ goto out_dgrade; ++ } ++ ++ err = au_pin(pin, cpg.dentry, cpg.bdst, AuOpt_UDBA_NONE, ++ AuPin_DI_LOCKED | AuPin_MNT_WRITE); ++ if (unlikely(err)) ++ goto out_dgrade; ++ ++ dbtop = au_dbtop(cpg.dentry); ++ if (dbtop <= cpg.bdst) ++ cpg.bsrc = cpg.bdst; ++ ++ if (dbtop <= cpg.bdst /* just reopen */ ++ || !d_unhashed(cpg.dentry) /* copyup and reopen */ ++ ) { ++ h_file = au_h_open_pre(cpg.dentry, cpg.bsrc, /*force_wr*/0); ++ if (IS_ERR(h_file)) ++ err = PTR_ERR(h_file); ++ else { ++ di_downgrade_lock(parent, AuLock_IR); ++ if (dbtop > cpg.bdst) ++ err = au_sio_cpup_simple(&cpg); ++ if (!err) ++ err = au_reopen_nondir(file); ++ au_h_open_post(cpg.dentry, cpg.bsrc, h_file); ++ } ++ } else { /* copyup as wh and reopen */ ++ /* ++ * since writable hfsplus branch is not supported, ++ * h_open_pre/post() are unnecessary. ++ */ ++ err = au_ready_to_write_wh(file, len, cpg.bdst, pin); ++ di_downgrade_lock(parent, AuLock_IR); ++ } ++ ++ if (!err) { ++ au_pin_set_parent_lflag(pin, /*lflag*/0); ++ goto out_dput; /* success */ ++ } ++ au_unpin(pin); ++ goto out_unlock; ++ ++out_dgrade: ++ di_downgrade_lock(parent, AuLock_IR); ++out_unlock: ++ di_read_unlock(parent, AuLock_IR); ++out_dput: ++ dput(parent); ++out: ++ return err; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++int au_do_flush(struct file *file, fl_owner_t id, ++ int (*flush)(struct file *file, fl_owner_t id)) ++{ ++ int err; ++ struct super_block *sb; ++ struct inode *inode; ++ ++ inode = file_inode(file); ++ sb = inode->i_sb; ++ si_noflush_read_lock(sb); ++ fi_read_lock(file); ++ ii_read_lock_child(inode); ++ ++ err = flush(file, id); ++ au_cpup_attr_timesizes(inode); ++ ++ ii_read_unlock(inode); ++ fi_read_unlock(file); ++ si_read_unlock(sb); ++ return err; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++static int au_file_refresh_by_inode(struct file *file, int *need_reopen) ++{ ++ int err; ++ struct au_pin pin; ++ struct au_finfo *finfo; ++ struct dentry *parent, *hi_wh; ++ struct inode *inode; ++ struct super_block *sb; ++ struct au_cp_generic cpg = { ++ .dentry = file->f_path.dentry, ++ .bdst = -1, ++ .bsrc = -1, ++ .len = -1, ++ .pin = &pin, ++ .flags = AuCpup_DTIME ++ }; ++ ++ FiMustWriteLock(file); ++ ++ err = 0; ++ finfo = au_fi(file); ++ sb = cpg.dentry->d_sb; ++ inode = d_inode(cpg.dentry); ++ cpg.bdst = au_ibtop(inode); ++ if (cpg.bdst == finfo->fi_btop || IS_ROOT(cpg.dentry)) ++ goto out; ++ ++ parent = dget_parent(cpg.dentry); ++ if (au_test_ro(sb, cpg.bdst, inode)) { ++ di_read_lock_parent(parent, !AuLock_IR); ++ err = AuWbrCopyup(au_sbi(sb), cpg.dentry); ++ cpg.bdst = err; ++ di_read_unlock(parent, !AuLock_IR); ++ if (unlikely(err < 0)) ++ goto out_parent; ++ err = 0; ++ } ++ ++ di_read_lock_parent(parent, AuLock_IR); ++ hi_wh = au_hi_wh(inode, cpg.bdst); ++ if (!S_ISDIR(inode->i_mode) ++ && au_opt_test(au_mntflags(sb), PLINK) ++ && au_plink_test(inode) ++ && !d_unhashed(cpg.dentry) ++ && cpg.bdst < au_dbtop(cpg.dentry)) { ++ err = au_test_and_cpup_dirs(cpg.dentry, cpg.bdst); ++ if (unlikely(err)) ++ goto out_unlock; ++ ++ /* always superio. */ ++ err = au_pin(&pin, cpg.dentry, cpg.bdst, AuOpt_UDBA_NONE, ++ AuPin_DI_LOCKED | AuPin_MNT_WRITE); ++ if (!err) { ++ err = au_sio_cpup_simple(&cpg); ++ au_unpin(&pin); ++ } ++ } else if (hi_wh) { ++ /* already copied-up after unlink */ ++ err = au_reopen_wh(file, cpg.bdst, hi_wh); ++ *need_reopen = 0; ++ } ++ ++out_unlock: ++ di_read_unlock(parent, AuLock_IR); ++out_parent: ++ dput(parent); ++out: ++ return err; ++} ++ ++static void au_do_refresh_dir(struct file *file) ++{ ++ aufs_bindex_t bindex, bbot, new_bindex, brid; ++ struct au_hfile *p, tmp, *q; ++ struct au_finfo *finfo; ++ struct super_block *sb; ++ struct au_fidir *fidir; ++ ++ FiMustWriteLock(file); ++ ++ sb = file->f_path.dentry->d_sb; ++ finfo = au_fi(file); ++ fidir = finfo->fi_hdir; ++ AuDebugOn(!fidir); ++ p = fidir->fd_hfile + finfo->fi_btop; ++ brid = p->hf_br->br_id; ++ bbot = fidir->fd_bbot; ++ for (bindex = finfo->fi_btop; bindex <= bbot; bindex++, p++) { ++ if (!p->hf_file) ++ continue; ++ ++ new_bindex = au_br_index(sb, p->hf_br->br_id); ++ if (new_bindex == bindex) ++ continue; ++ if (new_bindex < 0) { ++ au_set_h_fptr(file, bindex, NULL); ++ continue; ++ } ++ ++ /* swap two lower inode, and loop again */ ++ q = fidir->fd_hfile + new_bindex; ++ tmp = *q; ++ *q = *p; ++ *p = tmp; ++ if (tmp.hf_file) { ++ bindex--; ++ p--; ++ } ++ } ++ ++ p = fidir->fd_hfile; ++ if (!au_test_mmapped(file) && !d_unlinked(file->f_path.dentry)) { ++ bbot = au_sbbot(sb); ++ for (finfo->fi_btop = 0; finfo->fi_btop <= bbot; ++ finfo->fi_btop++, p++) ++ if (p->hf_file) { ++ if (file_inode(p->hf_file)) ++ break; ++ au_hfput(p, /*execed*/0); ++ } ++ } else { ++ bbot = au_br_index(sb, brid); ++ for (finfo->fi_btop = 0; finfo->fi_btop < bbot; ++ finfo->fi_btop++, p++) ++ if (p->hf_file) ++ au_hfput(p, /*execed*/0); ++ bbot = au_sbbot(sb); ++ } ++ ++ p = fidir->fd_hfile + bbot; ++ for (fidir->fd_bbot = bbot; fidir->fd_bbot >= finfo->fi_btop; ++ fidir->fd_bbot--, p--) ++ if (p->hf_file) { ++ if (file_inode(p->hf_file)) ++ break; ++ au_hfput(p, /*execed*/0); ++ } ++ AuDebugOn(fidir->fd_bbot < finfo->fi_btop); ++} ++ ++/* ++ * after branch manipulating, refresh the file. ++ */ ++static int refresh_file(struct file *file, int (*reopen)(struct file *file)) ++{ ++ int err, need_reopen, nbr; ++ aufs_bindex_t bbot, bindex; ++ struct dentry *dentry; ++ struct super_block *sb; ++ struct au_finfo *finfo; ++ struct au_hfile *hfile; ++ ++ dentry = file->f_path.dentry; ++ sb = dentry->d_sb; ++ nbr = au_sbbot(sb) + 1; ++ finfo = au_fi(file); ++ if (!finfo->fi_hdir) { ++ hfile = &finfo->fi_htop; ++ AuDebugOn(!hfile->hf_file); ++ bindex = au_br_index(sb, hfile->hf_br->br_id); ++ AuDebugOn(bindex < 0); ++ if (bindex != finfo->fi_btop) ++ au_set_fbtop(file, bindex); ++ } else { ++ err = au_fidir_realloc(finfo, nbr, /*may_shrink*/0); ++ if (unlikely(err)) ++ goto out; ++ au_do_refresh_dir(file); ++ } ++ ++ err = 0; ++ need_reopen = 1; ++ if (!au_test_mmapped(file)) ++ err = au_file_refresh_by_inode(file, &need_reopen); ++ if (finfo->fi_hdir) ++ /* harmless if err */ ++ au_fidir_realloc(finfo, nbr, /*may_shrink*/1); ++ if (!err && need_reopen && !d_unlinked(dentry)) ++ err = reopen(file); ++ if (!err) { ++ au_update_figen(file); ++ goto out; /* success */ ++ } ++ ++ /* error, close all lower files */ ++ if (finfo->fi_hdir) { ++ bbot = au_fbbot_dir(file); ++ for (bindex = au_fbtop(file); bindex <= bbot; bindex++) ++ au_set_h_fptr(file, bindex, NULL); ++ } ++ ++out: ++ return err; ++} ++ ++/* common function to regular file and dir */ ++int au_reval_and_lock_fdi(struct file *file, int (*reopen)(struct file *file), ++ int wlock, unsigned int fi_lsc) ++{ ++ int err; ++ unsigned int sigen, figen; ++ aufs_bindex_t btop; ++ unsigned char pseudo_link; ++ struct dentry *dentry; ++ struct inode *inode; ++ ++ err = 0; ++ dentry = file->f_path.dentry; ++ inode = d_inode(dentry); ++ sigen = au_sigen(dentry->d_sb); ++ fi_write_lock_nested(file, fi_lsc); ++ figen = au_figen(file); ++ if (!fi_lsc) ++ di_write_lock_child(dentry); ++ else ++ di_write_lock_child2(dentry); ++ btop = au_dbtop(dentry); ++ pseudo_link = (btop != au_ibtop(inode)); ++ if (sigen == figen && !pseudo_link && au_fbtop(file) == btop) { ++ if (!wlock) { ++ di_downgrade_lock(dentry, AuLock_IR); ++ fi_downgrade_lock(file); ++ } ++ goto out; /* success */ ++ } ++ ++ AuDbg("sigen %d, figen %d\n", sigen, figen); ++ if (au_digen_test(dentry, sigen)) { ++ err = au_reval_dpath(dentry, sigen); ++ AuDebugOn(!err && au_digen_test(dentry, sigen)); ++ } ++ ++ if (!err) ++ err = refresh_file(file, reopen); ++ if (!err) { ++ if (!wlock) { ++ di_downgrade_lock(dentry, AuLock_IR); ++ fi_downgrade_lock(file); ++ } ++ } else { ++ di_write_unlock(dentry); ++ fi_write_unlock(file); ++ } ++ ++out: ++ return err; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++/* cf. aufs_nopage() */ ++/* for madvise(2) */ ++static int aufs_readpage(struct file *file __maybe_unused, struct page *page) ++{ ++ unlock_page(page); ++ return 0; ++} ++ ++/* it will never be called, but necessary to support O_DIRECT */ ++static ssize_t aufs_direct_IO(struct kiocb *iocb, struct iov_iter *iter) ++{ BUG(); return 0; } ++ ++/* they will never be called. */ ++#ifdef CONFIG_AUFS_DEBUG ++static int aufs_write_begin(struct file *file, struct address_space *mapping, ++ loff_t pos, unsigned len, unsigned flags, ++ struct page **pagep, void **fsdata) ++{ AuUnsupport(); return 0; } ++static int aufs_write_end(struct file *file, struct address_space *mapping, ++ loff_t pos, unsigned len, unsigned copied, ++ struct page *page, void *fsdata) ++{ AuUnsupport(); return 0; } ++static int aufs_writepage(struct page *page, struct writeback_control *wbc) ++{ AuUnsupport(); return 0; } ++ ++static int aufs_set_page_dirty(struct page *page) ++{ AuUnsupport(); return 0; } ++static void aufs_invalidatepage(struct page *page, unsigned int offset, ++ unsigned int length) ++{ AuUnsupport(); } ++static int aufs_releasepage(struct page *page, gfp_t gfp) ++{ AuUnsupport(); return 0; } ++#if 0 /* called by memory compaction regardless file */ ++static int aufs_migratepage(struct address_space *mapping, struct page *newpage, ++ struct page *page, enum migrate_mode mode) ++{ AuUnsupport(); return 0; } ++#endif ++static bool aufs_isolate_page(struct page *page, isolate_mode_t mode) ++{ AuUnsupport(); return true; } ++static void aufs_putback_page(struct page *page) ++{ AuUnsupport(); } ++static int aufs_launder_page(struct page *page) ++{ AuUnsupport(); return 0; } ++static int aufs_is_partially_uptodate(struct page *page, ++ unsigned long from, ++ unsigned long count) ++{ AuUnsupport(); return 0; } ++static void aufs_is_dirty_writeback(struct page *page, bool *dirty, ++ bool *writeback) ++{ AuUnsupport(); } ++static int aufs_error_remove_page(struct address_space *mapping, ++ struct page *page) ++{ AuUnsupport(); return 0; } ++static int aufs_swap_activate(struct swap_info_struct *sis, struct file *file, ++ sector_t *span) ++{ AuUnsupport(); return 0; } ++static void aufs_swap_deactivate(struct file *file) ++{ AuUnsupport(); } ++#endif /* CONFIG_AUFS_DEBUG */ ++ ++const struct address_space_operations aufs_aop = { ++ .readpage = aufs_readpage, ++ .direct_IO = aufs_direct_IO, ++#ifdef CONFIG_AUFS_DEBUG ++ .writepage = aufs_writepage, ++ /* no writepages, because of writepage */ ++ .set_page_dirty = aufs_set_page_dirty, ++ /* no readpages, because of readpage */ ++ .write_begin = aufs_write_begin, ++ .write_end = aufs_write_end, ++ /* no bmap, no block device */ ++ .invalidatepage = aufs_invalidatepage, ++ .releasepage = aufs_releasepage, ++ /* is fallback_migrate_page ok? */ ++ /* .migratepage = aufs_migratepage, */ ++ .isolate_page = aufs_isolate_page, ++ .putback_page = aufs_putback_page, ++ .launder_page = aufs_launder_page, ++ .is_partially_uptodate = aufs_is_partially_uptodate, ++ .is_dirty_writeback = aufs_is_dirty_writeback, ++ .error_remove_page = aufs_error_remove_page, ++ .swap_activate = aufs_swap_activate, ++ .swap_deactivate = aufs_swap_deactivate ++#endif /* CONFIG_AUFS_DEBUG */ ++}; +diff -Naur linux-5.15/fs/aufs/file.h aufs5-linux-aufs5.15/fs/aufs/file.h +--- linux-5.15/fs/aufs/file.h 1970-01-01 03:00:00.000000000 +0300 ++++ aufs5-linux-aufs5.15/fs/aufs/file.h 2022-03-07 13:48:09.000000000 +0300 +@@ -0,0 +1,329 @@ ++/* SPDX-License-Identifier: GPL-2.0 */ ++/* ++ * Copyright (C) 2005-2021 Junjiro R. Okajima ++ */ ++ ++/* ++ * file operations ++ */ ++ ++#ifndef __AUFS_FILE_H__ ++#define __AUFS_FILE_H__ ++ ++#ifdef __KERNEL__ ++ ++#include ++#include ++#include ++#include ++#include "rwsem.h" ++ ++struct au_branch; ++struct au_hfile { ++ struct file *hf_file; ++ struct au_branch *hf_br; ++}; ++ ++struct au_vdir; ++struct au_fidir { ++ aufs_bindex_t fd_bbot; ++ aufs_bindex_t fd_nent; ++ struct au_vdir *fd_vdir_cache; ++ struct au_hfile fd_hfile[]; ++}; ++ ++static inline int au_fidir_sz(int nent) ++{ ++ AuDebugOn(nent < 0); ++ return sizeof(struct au_fidir) + sizeof(struct au_hfile) * nent; ++} ++ ++struct au_finfo { ++ atomic_t fi_generation; ++ ++ struct au_rwsem fi_rwsem; ++ aufs_bindex_t fi_btop; ++ ++ /* do not union them */ ++ struct { /* for non-dir */ ++ struct au_hfile fi_htop; ++ atomic_t fi_mmapped; ++ }; ++ struct au_fidir *fi_hdir; /* for dir only */ ++ ++ struct hlist_bl_node fi_hlist; ++ struct file *fi_file; /* very ugly */ ++ struct rcu_head rcu; ++} ____cacheline_aligned_in_smp; ++ ++/* ---------------------------------------------------------------------- */ ++ ++/* file.c */ ++extern const struct address_space_operations aufs_aop; ++unsigned int au_file_roflags(unsigned int flags); ++struct file *au_h_open(struct dentry *dentry, aufs_bindex_t bindex, int flags, ++ struct file *file, int force_wr); ++struct au_do_open_args { ++ int aopen; ++ int (*open)(struct file *file, int flags, ++ struct file *h_file); ++ struct au_fidir *fidir; ++ struct file *h_file; ++}; ++int au_do_open(struct file *file, struct au_do_open_args *args); ++int au_reopen_nondir(struct file *file); ++struct au_pin; ++int au_ready_to_write(struct file *file, loff_t len, struct au_pin *pin); ++int au_reval_and_lock_fdi(struct file *file, int (*reopen)(struct file *file), ++ int wlock, unsigned int fi_lsc); ++int au_do_flush(struct file *file, fl_owner_t id, ++ int (*flush)(struct file *file, fl_owner_t id)); ++ ++/* poll.c */ ++#ifdef CONFIG_AUFS_POLL ++__poll_t aufs_poll(struct file *file, struct poll_table_struct *pt); ++#endif ++ ++#ifdef CONFIG_AUFS_BR_HFSPLUS ++/* hfsplus.c */ ++struct file *au_h_open_pre(struct dentry *dentry, aufs_bindex_t bindex, ++ int force_wr); ++void au_h_open_post(struct dentry *dentry, aufs_bindex_t bindex, ++ struct file *h_file); ++#else ++AuStub(struct file *, au_h_open_pre, return NULL, struct dentry *dentry, ++ aufs_bindex_t bindex, int force_wr) ++AuStubVoid(au_h_open_post, struct dentry *dentry, aufs_bindex_t bindex, ++ struct file *h_file); ++#endif ++ ++/* f_op.c */ ++extern const struct file_operations aufs_file_fop; ++int au_do_open_nondir(struct file *file, int flags, struct file *h_file); ++int aufs_release_nondir(struct inode *inode __maybe_unused, struct file *file); ++struct file *au_read_pre(struct file *file, int keep_fi, unsigned int lsc); ++ ++/* finfo.c */ ++void au_hfput(struct au_hfile *hf, int execed); ++void au_set_h_fptr(struct file *file, aufs_bindex_t bindex, ++ struct file *h_file); ++ ++void au_update_figen(struct file *file); ++struct au_fidir *au_fidir_alloc(struct super_block *sb); ++int au_fidir_realloc(struct au_finfo *finfo, int nbr, int may_shrink); ++ ++void au_fi_init_once(void *_fi); ++void au_finfo_fin(struct file *file); ++int au_finfo_init(struct file *file, struct au_fidir *fidir); ++ ++/* ioctl.c */ ++long aufs_ioctl_nondir(struct file *file, unsigned int cmd, unsigned long arg); ++#ifdef CONFIG_COMPAT ++long aufs_compat_ioctl_dir(struct file *file, unsigned int cmd, ++ unsigned long arg); ++long aufs_compat_ioctl_nondir(struct file *file, unsigned int cmd, ++ unsigned long arg); ++#endif ++ ++/* ---------------------------------------------------------------------- */ ++ ++static inline struct au_finfo *au_fi(struct file *file) ++{ ++ return file->private_data; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++#define fi_read_lock(f) au_rw_read_lock(&au_fi(f)->fi_rwsem) ++#define fi_write_lock(f) au_rw_write_lock(&au_fi(f)->fi_rwsem) ++#define fi_read_trylock(f) au_rw_read_trylock(&au_fi(f)->fi_rwsem) ++#define fi_write_trylock(f) au_rw_write_trylock(&au_fi(f)->fi_rwsem) ++/* ++#define fi_read_trylock_nested(f) \ ++ au_rw_read_trylock_nested(&au_fi(f)->fi_rwsem) ++#define fi_write_trylock_nested(f) \ ++ au_rw_write_trylock_nested(&au_fi(f)->fi_rwsem) ++*/ ++ ++#define fi_read_unlock(f) au_rw_read_unlock(&au_fi(f)->fi_rwsem) ++#define fi_write_unlock(f) au_rw_write_unlock(&au_fi(f)->fi_rwsem) ++#define fi_downgrade_lock(f) au_rw_dgrade_lock(&au_fi(f)->fi_rwsem) ++ ++/* lock subclass for finfo */ ++enum { ++ AuLsc_FI_1, ++ AuLsc_FI_2 ++}; ++ ++static inline void fi_read_lock_nested(struct file *f, unsigned int lsc) ++{ ++ au_rw_read_lock_nested(&au_fi(f)->fi_rwsem, lsc); ++} ++ ++static inline void fi_write_lock_nested(struct file *f, unsigned int lsc) ++{ ++ au_rw_write_lock_nested(&au_fi(f)->fi_rwsem, lsc); ++} ++ ++/* ++ * fi_read_lock_1, fi_write_lock_1, ++ * fi_read_lock_2, fi_write_lock_2 ++ */ ++#define AuReadLockFunc(name) \ ++static inline void fi_read_lock_##name(struct file *f) \ ++{ fi_read_lock_nested(f, AuLsc_FI_##name); } ++ ++#define AuWriteLockFunc(name) \ ++static inline void fi_write_lock_##name(struct file *f) \ ++{ fi_write_lock_nested(f, AuLsc_FI_##name); } ++ ++#define AuRWLockFuncs(name) \ ++ AuReadLockFunc(name) \ ++ AuWriteLockFunc(name) ++ ++AuRWLockFuncs(1); ++AuRWLockFuncs(2); ++ ++#undef AuReadLockFunc ++#undef AuWriteLockFunc ++#undef AuRWLockFuncs ++ ++#define FiMustNoWaiters(f) AuRwMustNoWaiters(&au_fi(f)->fi_rwsem) ++#define FiMustAnyLock(f) AuRwMustAnyLock(&au_fi(f)->fi_rwsem) ++#define FiMustWriteLock(f) AuRwMustWriteLock(&au_fi(f)->fi_rwsem) ++ ++/* ---------------------------------------------------------------------- */ ++ ++/* todo: hard/soft set? */ ++static inline aufs_bindex_t au_fbtop(struct file *file) ++{ ++ FiMustAnyLock(file); ++ return au_fi(file)->fi_btop; ++} ++ ++static inline aufs_bindex_t au_fbbot_dir(struct file *file) ++{ ++ FiMustAnyLock(file); ++ AuDebugOn(!au_fi(file)->fi_hdir); ++ return au_fi(file)->fi_hdir->fd_bbot; ++} ++ ++static inline struct au_vdir *au_fvdir_cache(struct file *file) ++{ ++ FiMustAnyLock(file); ++ AuDebugOn(!au_fi(file)->fi_hdir); ++ return au_fi(file)->fi_hdir->fd_vdir_cache; ++} ++ ++static inline void au_set_fbtop(struct file *file, aufs_bindex_t bindex) ++{ ++ FiMustWriteLock(file); ++ au_fi(file)->fi_btop = bindex; ++} ++ ++static inline void au_set_fbbot_dir(struct file *file, aufs_bindex_t bindex) ++{ ++ FiMustWriteLock(file); ++ AuDebugOn(!au_fi(file)->fi_hdir); ++ au_fi(file)->fi_hdir->fd_bbot = bindex; ++} ++ ++static inline void au_set_fvdir_cache(struct file *file, ++ struct au_vdir *vdir_cache) ++{ ++ FiMustWriteLock(file); ++ AuDebugOn(!au_fi(file)->fi_hdir); ++ au_fi(file)->fi_hdir->fd_vdir_cache = vdir_cache; ++} ++ ++static inline struct file *au_hf_top(struct file *file) ++{ ++ FiMustAnyLock(file); ++ AuDebugOn(au_fi(file)->fi_hdir); ++ return au_fi(file)->fi_htop.hf_file; ++} ++ ++static inline struct file *au_hf_dir(struct file *file, aufs_bindex_t bindex) ++{ ++ FiMustAnyLock(file); ++ AuDebugOn(!au_fi(file)->fi_hdir); ++ return au_fi(file)->fi_hdir->fd_hfile[0 + bindex].hf_file; ++} ++ ++/* todo: memory barrier? */ ++static inline unsigned int au_figen(struct file *f) ++{ ++ return atomic_read(&au_fi(f)->fi_generation); ++} ++ ++static inline void au_set_mmapped(struct file *f) ++{ ++ if (atomic_inc_return(&au_fi(f)->fi_mmapped)) ++ return; ++ pr_warn("fi_mmapped wrapped around\n"); ++ while (!atomic_inc_return(&au_fi(f)->fi_mmapped)) ++ ; ++} ++ ++static inline void au_unset_mmapped(struct file *f) ++{ ++ atomic_dec(&au_fi(f)->fi_mmapped); ++} ++ ++static inline int au_test_mmapped(struct file *f) ++{ ++ return atomic_read(&au_fi(f)->fi_mmapped); ++} ++ ++/* customize vma->vm_file */ ++ ++static inline void au_do_vm_file_reset(struct vm_area_struct *vma, ++ struct file *file) ++{ ++ struct file *f; ++ ++ f = vma->vm_file; ++ get_file(file); ++ vma->vm_file = file; ++ fput(f); ++} ++ ++#ifdef CONFIG_MMU ++#define AuDbgVmRegion(file, vma) do {} while (0) ++ ++static inline void au_vm_file_reset(struct vm_area_struct *vma, ++ struct file *file) ++{ ++ au_do_vm_file_reset(vma, file); ++} ++#else ++#define AuDbgVmRegion(file, vma) \ ++ AuDebugOn((vma)->vm_region && (vma)->vm_region->vm_file != (file)) ++ ++static inline void au_vm_file_reset(struct vm_area_struct *vma, ++ struct file *file) ++{ ++ struct file *f; ++ ++ au_do_vm_file_reset(vma, file); ++ f = vma->vm_region->vm_file; ++ get_file(file); ++ vma->vm_region->vm_file = file; ++ fput(f); ++} ++#endif /* CONFIG_MMU */ ++ ++/* handle vma->vm_prfile */ ++static inline void au_vm_prfile_set(struct vm_area_struct *vma, ++ struct file *file) ++{ ++ get_file(file); ++ vma->vm_prfile = file; ++#ifndef CONFIG_MMU ++ get_file(file); ++ vma->vm_region->vm_prfile = file; ++#endif ++} ++ ++#endif /* __KERNEL__ */ ++#endif /* __AUFS_FILE_H__ */ +diff -Naur linux-5.15/fs/aufs/finfo.c aufs5-linux-aufs5.15/fs/aufs/finfo.c +--- linux-5.15/fs/aufs/finfo.c 1970-01-01 03:00:00.000000000 +0300 ++++ aufs5-linux-aufs5.15/fs/aufs/finfo.c 2022-03-07 13:48:09.000000000 +0300 +@@ -0,0 +1,136 @@ ++// SPDX-License-Identifier: GPL-2.0 ++/* ++ * Copyright (C) 2005-2021 Junjiro R. Okajima ++ */ ++ ++/* ++ * file private data ++ */ ++ ++#include "aufs.h" ++ ++void au_hfput(struct au_hfile *hf, int execed) ++{ ++ if (execed) ++ allow_write_access(hf->hf_file); ++ fput(hf->hf_file); ++ hf->hf_file = NULL; ++ au_lcnt_dec(&hf->hf_br->br_nfiles); ++ hf->hf_br = NULL; ++} ++ ++void au_set_h_fptr(struct file *file, aufs_bindex_t bindex, struct file *val) ++{ ++ struct au_finfo *finfo = au_fi(file); ++ struct au_hfile *hf; ++ struct au_fidir *fidir; ++ ++ fidir = finfo->fi_hdir; ++ if (!fidir) { ++ AuDebugOn(finfo->fi_btop != bindex); ++ hf = &finfo->fi_htop; ++ } else ++ hf = fidir->fd_hfile + bindex; ++ ++ if (hf && hf->hf_file) ++ au_hfput(hf, vfsub_file_execed(file)); ++ if (val) { ++ FiMustWriteLock(file); ++ AuDebugOn(IS_ERR_OR_NULL(file->f_path.dentry)); ++ hf->hf_file = val; ++ hf->hf_br = au_sbr(file->f_path.dentry->d_sb, bindex); ++ } ++} ++ ++void au_update_figen(struct file *file) ++{ ++ atomic_set(&au_fi(file)->fi_generation, au_digen(file->f_path.dentry)); ++ /* smp_mb(); */ /* atomic_set */ ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++struct au_fidir *au_fidir_alloc(struct super_block *sb) ++{ ++ struct au_fidir *fidir; ++ int nbr; ++ ++ nbr = au_sbbot(sb) + 1; ++ if (nbr < 2) ++ nbr = 2; /* initial allocate for 2 branches */ ++ fidir = kzalloc(au_fidir_sz(nbr), GFP_NOFS); ++ if (fidir) { ++ fidir->fd_bbot = -1; ++ fidir->fd_nent = nbr; ++ } ++ ++ return fidir; ++} ++ ++int au_fidir_realloc(struct au_finfo *finfo, int nbr, int may_shrink) ++{ ++ int err; ++ struct au_fidir *fidir, *p; ++ ++ AuRwMustWriteLock(&finfo->fi_rwsem); ++ fidir = finfo->fi_hdir; ++ AuDebugOn(!fidir); ++ ++ err = -ENOMEM; ++ p = au_kzrealloc(fidir, au_fidir_sz(fidir->fd_nent), au_fidir_sz(nbr), ++ GFP_NOFS, may_shrink); ++ if (p) { ++ p->fd_nent = nbr; ++ finfo->fi_hdir = p; ++ err = 0; ++ } ++ ++ return err; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++void au_finfo_fin(struct file *file) ++{ ++ struct au_finfo *finfo; ++ ++ au_lcnt_dec(&au_sbi(file->f_path.dentry->d_sb)->si_nfiles); ++ ++ finfo = au_fi(file); ++ AuDebugOn(finfo->fi_hdir); ++ AuRwDestroy(&finfo->fi_rwsem); ++ au_cache_free_finfo(finfo); ++} ++ ++void au_fi_init_once(void *_finfo) ++{ ++ struct au_finfo *finfo = _finfo; ++ ++ au_rw_init(&finfo->fi_rwsem); ++} ++ ++int au_finfo_init(struct file *file, struct au_fidir *fidir) ++{ ++ int err; ++ struct au_finfo *finfo; ++ struct dentry *dentry; ++ ++ err = -ENOMEM; ++ dentry = file->f_path.dentry; ++ finfo = au_cache_alloc_finfo(); ++ if (unlikely(!finfo)) ++ goto out; ++ ++ err = 0; ++ au_lcnt_inc(&au_sbi(dentry->d_sb)->si_nfiles); ++ au_rw_write_lock(&finfo->fi_rwsem); ++ finfo->fi_btop = -1; ++ finfo->fi_hdir = fidir; ++ atomic_set(&finfo->fi_generation, au_digen(dentry)); ++ /* smp_mb(); */ /* atomic_set */ ++ ++ file->private_data = finfo; ++ ++out: ++ return err; ++} +diff -Naur linux-5.15/fs/aufs/f_op.c aufs5-linux-aufs5.15/fs/aufs/f_op.c +--- linux-5.15/fs/aufs/f_op.c 1970-01-01 03:00:00.000000000 +0300 ++++ aufs5-linux-aufs5.15/fs/aufs/f_op.c 2022-03-07 13:48:09.000000000 +0300 +@@ -0,0 +1,758 @@ ++// SPDX-License-Identifier: GPL-2.0 ++/* ++ * Copyright (C) 2005-2021 Junjiro R. Okajima ++ */ ++ ++/* ++ * file and vm operations ++ */ ++ ++#include ++#include ++#include ++#include ++#include "aufs.h" ++ ++int au_do_open_nondir(struct file *file, int flags, struct file *h_file) ++{ ++ int err; ++ aufs_bindex_t bindex; ++ struct dentry *dentry, *h_dentry; ++ struct au_finfo *finfo; ++ struct inode *h_inode; ++ ++ FiMustWriteLock(file); ++ ++ err = 0; ++ dentry = file->f_path.dentry; ++ AuDebugOn(IS_ERR_OR_NULL(dentry)); ++ finfo = au_fi(file); ++ memset(&finfo->fi_htop, 0, sizeof(finfo->fi_htop)); ++ atomic_set(&finfo->fi_mmapped, 0); ++ bindex = au_dbtop(dentry); ++ if (!h_file) { ++ h_dentry = au_h_dptr(dentry, bindex); ++ err = vfsub_test_mntns(file->f_path.mnt, h_dentry->d_sb); ++ if (unlikely(err)) ++ goto out; ++ h_file = au_h_open(dentry, bindex, flags, file, /*force_wr*/0); ++ if (IS_ERR(h_file)) { ++ err = PTR_ERR(h_file); ++ goto out; ++ } ++ } else { ++ h_dentry = h_file->f_path.dentry; ++ err = vfsub_test_mntns(file->f_path.mnt, h_dentry->d_sb); ++ if (unlikely(err)) ++ goto out; ++ /* br ref is already inc-ed */ ++ } ++ ++ if ((flags & __O_TMPFILE) ++ && !(flags & O_EXCL)) { ++ h_inode = file_inode(h_file); ++ spin_lock(&h_inode->i_lock); ++ h_inode->i_state |= I_LINKABLE; ++ spin_unlock(&h_inode->i_lock); ++ } ++ au_set_fbtop(file, bindex); ++ au_set_h_fptr(file, bindex, h_file); ++ au_update_figen(file); ++ /* todo: necessary? */ ++ /* file->f_ra = h_file->f_ra; */ ++ ++out: ++ return err; ++} ++ ++static int aufs_open_nondir(struct inode *inode __maybe_unused, ++ struct file *file) ++{ ++ int err; ++ struct super_block *sb; ++ struct au_do_open_args args = { ++ .open = au_do_open_nondir ++ }; ++ ++ AuDbg("%pD, f_flags 0x%x, f_mode 0x%x\n", ++ file, vfsub_file_flags(file), file->f_mode); ++ ++ sb = file->f_path.dentry->d_sb; ++ si_read_lock(sb, AuLock_FLUSH); ++ err = au_do_open(file, &args); ++ si_read_unlock(sb); ++ return err; ++} ++ ++int aufs_release_nondir(struct inode *inode __maybe_unused, struct file *file) ++{ ++ struct au_finfo *finfo; ++ aufs_bindex_t bindex; ++ ++ finfo = au_fi(file); ++ au_hbl_del(&finfo->fi_hlist, ++ &au_sbi(file->f_path.dentry->d_sb)->si_files); ++ bindex = finfo->fi_btop; ++ if (bindex >= 0) ++ au_set_h_fptr(file, bindex, NULL); ++ ++ au_finfo_fin(file); ++ return 0; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++static int au_do_flush_nondir(struct file *file, fl_owner_t id) ++{ ++ int err; ++ struct file *h_file; ++ ++ err = 0; ++ h_file = au_hf_top(file); ++ if (h_file) ++ err = vfsub_flush(h_file, id); ++ return err; ++} ++ ++static int aufs_flush_nondir(struct file *file, fl_owner_t id) ++{ ++ return au_do_flush(file, id, au_do_flush_nondir); ++} ++ ++/* ---------------------------------------------------------------------- */ ++/* ++ * read and write functions acquire [fdi]_rwsem once, but release before ++ * mmap_sem. This is because to stop a race condition between mmap(2). ++ * Releasing these aufs-rwsem should be safe, no branch-management (by keeping ++ * si_rwsem), no harmful copy-up should happen. Actually copy-up may happen in ++ * read functions after [fdi]_rwsem are released, but it should be harmless. ++ */ ++ ++/* Callers should call au_read_post() or fput() in the end */ ++struct file *au_read_pre(struct file *file, int keep_fi, unsigned int lsc) ++{ ++ struct file *h_file; ++ int err; ++ ++ err = au_reval_and_lock_fdi(file, au_reopen_nondir, /*wlock*/0, lsc); ++ if (!err) { ++ di_read_unlock(file->f_path.dentry, AuLock_IR); ++ h_file = au_hf_top(file); ++ get_file(h_file); ++ if (!keep_fi) ++ fi_read_unlock(file); ++ } else ++ h_file = ERR_PTR(err); ++ ++ return h_file; ++} ++ ++static void au_read_post(struct inode *inode, struct file *h_file) ++{ ++ /* update without lock, I don't think it a problem */ ++ fsstack_copy_attr_atime(inode, file_inode(h_file)); ++ fput(h_file); ++} ++ ++struct au_write_pre { ++ /* input */ ++ unsigned int lsc; ++ ++ /* output */ ++ blkcnt_t blks; ++ aufs_bindex_t btop; ++}; ++ ++/* ++ * return with iinfo is write-locked ++ * callers should call au_write_post() or iinfo_write_unlock() + fput() in the ++ * end ++ */ ++static struct file *au_write_pre(struct file *file, int do_ready, ++ struct au_write_pre *wpre) ++{ ++ struct file *h_file; ++ struct dentry *dentry; ++ int err; ++ unsigned int lsc; ++ struct au_pin pin; ++ ++ lsc = 0; ++ if (wpre) ++ lsc = wpre->lsc; ++ err = au_reval_and_lock_fdi(file, au_reopen_nondir, /*wlock*/1, lsc); ++ h_file = ERR_PTR(err); ++ if (unlikely(err)) ++ goto out; ++ ++ dentry = file->f_path.dentry; ++ if (do_ready) { ++ err = au_ready_to_write(file, -1, &pin); ++ if (unlikely(err)) { ++ h_file = ERR_PTR(err); ++ di_write_unlock(dentry); ++ goto out_fi; ++ } ++ } ++ ++ di_downgrade_lock(dentry, /*flags*/0); ++ if (wpre) ++ wpre->btop = au_fbtop(file); ++ h_file = au_hf_top(file); ++ get_file(h_file); ++ if (wpre) ++ wpre->blks = file_inode(h_file)->i_blocks; ++ if (do_ready) ++ au_unpin(&pin); ++ di_read_unlock(dentry, /*flags*/0); ++ ++out_fi: ++ fi_write_unlock(file); ++out: ++ return h_file; ++} ++ ++static void au_write_post(struct inode *inode, struct file *h_file, ++ struct au_write_pre *wpre, ssize_t written) ++{ ++ struct inode *h_inode; ++ ++ au_cpup_attr_timesizes(inode); ++ AuDebugOn(au_ibtop(inode) != wpre->btop); ++ h_inode = file_inode(h_file); ++ inode->i_mode = h_inode->i_mode; ++ ii_write_unlock(inode); ++ /* AuDbg("blks %llu, %llu\n", (u64)blks, (u64)h_inode->i_blocks); */ ++ if (written > 0) ++ au_fhsm_wrote(inode->i_sb, wpre->btop, ++ /*force*/h_inode->i_blocks > wpre->blks); ++ fput(h_file); ++} ++ ++/* ++ * todo: very ugly ++ * it locks both of i_mutex and si_rwsem for read in safe. ++ * if the plink maintenance mode continues forever (that is the problem), ++ * may loop forever. ++ */ ++static void au_mtx_and_read_lock(struct inode *inode) ++{ ++ int err; ++ struct super_block *sb = inode->i_sb; ++ ++ while (1) { ++ inode_lock(inode); ++ err = si_read_lock(sb, AuLock_FLUSH | AuLock_NOPLM); ++ if (!err) ++ break; ++ inode_unlock(inode); ++ si_read_lock(sb, AuLock_NOPLMW); ++ si_read_unlock(sb); ++ } ++} ++ ++static ssize_t au_do_iter(struct file *h_file, int rw, struct kiocb *kio, ++ struct iov_iter *iov_iter) ++{ ++ ssize_t err; ++ struct file *file; ++ ssize_t (*iter)(struct kiocb *, struct iov_iter *); ++ ++ err = security_file_permission(h_file, rw); ++ if (unlikely(err)) ++ goto out; ++ ++ err = -ENOSYS; /* the branch doesn't have its ->(read|write)_iter() */ ++ iter = NULL; ++ if (rw == MAY_READ) ++ iter = h_file->f_op->read_iter; ++ else if (rw == MAY_WRITE) ++ iter = h_file->f_op->write_iter; ++ ++ file = kio->ki_filp; ++ kio->ki_filp = h_file; ++ if (iter) { ++ lockdep_off(); ++ err = iter(kio, iov_iter); ++ lockdep_on(); ++ } else ++ /* currently there is no such fs */ ++ WARN_ON_ONCE(1); ++ kio->ki_filp = file; ++ ++out: ++ return err; ++} ++ ++static ssize_t aufs_read_iter(struct kiocb *kio, struct iov_iter *iov_iter) ++{ ++ ssize_t err; ++ struct file *file, *h_file; ++ struct inode *inode; ++ struct super_block *sb; ++ ++ file = kio->ki_filp; ++ inode = file_inode(file); ++ sb = inode->i_sb; ++ si_read_lock(sb, AuLock_FLUSH | AuLock_NOPLMW); ++ ++ h_file = au_read_pre(file, /*keep_fi*/1, /*lsc*/0); ++ err = PTR_ERR(h_file); ++ if (IS_ERR(h_file)) ++ goto out; ++ ++ if (au_test_loopback_kthread()) { ++ au_warn_loopback(h_file->f_path.dentry->d_sb); ++ if (file->f_mapping != h_file->f_mapping) { ++ file->f_mapping = h_file->f_mapping; ++ smp_mb(); /* unnecessary? */ ++ } ++ } ++ fi_read_unlock(file); ++ ++ err = au_do_iter(h_file, MAY_READ, kio, iov_iter); ++ /* todo: necessary? */ ++ /* file->f_ra = h_file->f_ra; */ ++ au_read_post(inode, h_file); ++ ++out: ++ si_read_unlock(sb); ++ return err; ++} ++ ++static ssize_t aufs_write_iter(struct kiocb *kio, struct iov_iter *iov_iter) ++{ ++ ssize_t err; ++ struct au_write_pre wpre; ++ struct inode *inode; ++ struct file *file, *h_file; ++ ++ file = kio->ki_filp; ++ inode = file_inode(file); ++ au_mtx_and_read_lock(inode); ++ ++ wpre.lsc = 0; ++ h_file = au_write_pre(file, /*do_ready*/1, &wpre); ++ err = PTR_ERR(h_file); ++ if (IS_ERR(h_file)) ++ goto out; ++ ++ err = au_do_iter(h_file, MAY_WRITE, kio, iov_iter); ++ au_write_post(inode, h_file, &wpre, err); ++ ++out: ++ si_read_unlock(inode->i_sb); ++ inode_unlock(inode); ++ return err; ++} ++ ++/* ++ * We may be able to remove aufs_splice_{read,write}() since almost all FSes ++ * don't have their own .splice_{read,write} implimentations, and they use ++ * generic_file_splice_read() and iter_file_splice_write() who can act like the ++ * simple converters to f_op->iter_read() and ->iter_write(). ++ * But we keep our own implementations because some non-mainlined FSes may have ++ * their own .splice_{read,write} implimentations and aufs doesn't want to take ++ * away an opportunity to co-work with aufs from them. ++ */ ++static ssize_t aufs_splice_read(struct file *file, loff_t *ppos, ++ struct pipe_inode_info *pipe, size_t len, ++ unsigned int flags) ++{ ++ ssize_t err; ++ struct file *h_file; ++ struct inode *inode; ++ struct super_block *sb; ++ ++ inode = file_inode(file); ++ sb = inode->i_sb; ++ si_read_lock(sb, AuLock_FLUSH | AuLock_NOPLMW); ++ ++ h_file = au_read_pre(file, /*keep_fi*/0, /*lsc*/0); ++ err = PTR_ERR(h_file); ++ if (IS_ERR(h_file)) ++ goto out; ++ ++ err = vfsub_splice_to(h_file, ppos, pipe, len, flags); ++ /* todo: necessary? */ ++ /* file->f_ra = h_file->f_ra; */ ++ au_read_post(inode, h_file); ++ ++out: ++ si_read_unlock(sb); ++ return err; ++} ++ ++static ssize_t ++aufs_splice_write(struct pipe_inode_info *pipe, struct file *file, loff_t *ppos, ++ size_t len, unsigned int flags) ++{ ++ ssize_t err; ++ struct au_write_pre wpre; ++ struct inode *inode; ++ struct file *h_file; ++ ++ inode = file_inode(file); ++ au_mtx_and_read_lock(inode); ++ ++ wpre.lsc = 0; ++ h_file = au_write_pre(file, /*do_ready*/1, &wpre); ++ err = PTR_ERR(h_file); ++ if (IS_ERR(h_file)) ++ goto out; ++ ++ err = vfsub_splice_from(pipe, h_file, ppos, len, flags); ++ au_write_post(inode, h_file, &wpre, err); ++ ++out: ++ si_read_unlock(inode->i_sb); ++ inode_unlock(inode); ++ return err; ++} ++ ++static long aufs_fallocate(struct file *file, int mode, loff_t offset, ++ loff_t len) ++{ ++ long err; ++ struct au_write_pre wpre; ++ struct inode *inode; ++ struct file *h_file; ++ ++ inode = file_inode(file); ++ au_mtx_and_read_lock(inode); ++ ++ wpre.lsc = 0; ++ h_file = au_write_pre(file, /*do_ready*/1, &wpre); ++ err = PTR_ERR(h_file); ++ if (IS_ERR(h_file)) ++ goto out; ++ ++ lockdep_off(); ++ err = vfs_fallocate(h_file, mode, offset, len); ++ lockdep_on(); ++ au_write_post(inode, h_file, &wpre, /*written*/1); ++ ++out: ++ si_read_unlock(inode->i_sb); ++ inode_unlock(inode); ++ return err; ++} ++ ++static ssize_t aufs_copy_file_range(struct file *src, loff_t src_pos, ++ struct file *dst, loff_t dst_pos, ++ size_t len, unsigned int flags) ++{ ++ ssize_t err; ++ struct au_write_pre wpre; ++ enum { SRC, DST }; ++ struct { ++ struct inode *inode; ++ struct file *h_file; ++ struct super_block *h_sb; ++ } a[2]; ++#define a_src a[SRC] ++#define a_dst a[DST] ++ ++ err = -EINVAL; ++ a_src.inode = file_inode(src); ++ if (unlikely(!S_ISREG(a_src.inode->i_mode))) ++ goto out; ++ a_dst.inode = file_inode(dst); ++ if (unlikely(!S_ISREG(a_dst.inode->i_mode))) ++ goto out; ++ ++ au_mtx_and_read_lock(a_dst.inode); ++ /* ++ * in order to match the order in di_write_lock2_{child,parent}(), ++ * use f_path.dentry for this comparison. ++ */ ++ if (src->f_path.dentry < dst->f_path.dentry) { ++ a_src.h_file = au_read_pre(src, /*keep_fi*/1, AuLsc_FI_1); ++ err = PTR_ERR(a_src.h_file); ++ if (IS_ERR(a_src.h_file)) ++ goto out_si; ++ ++ wpre.lsc = AuLsc_FI_2; ++ a_dst.h_file = au_write_pre(dst, /*do_ready*/1, &wpre); ++ err = PTR_ERR(a_dst.h_file); ++ if (IS_ERR(a_dst.h_file)) { ++ au_read_post(a_src.inode, a_src.h_file); ++ goto out_si; ++ } ++ } else { ++ wpre.lsc = AuLsc_FI_1; ++ a_dst.h_file = au_write_pre(dst, /*do_ready*/1, &wpre); ++ err = PTR_ERR(a_dst.h_file); ++ if (IS_ERR(a_dst.h_file)) ++ goto out_si; ++ ++ a_src.h_file = au_read_pre(src, /*keep_fi*/1, AuLsc_FI_2); ++ err = PTR_ERR(a_src.h_file); ++ if (IS_ERR(a_src.h_file)) { ++ au_write_post(a_dst.inode, a_dst.h_file, &wpre, ++ /*written*/0); ++ goto out_si; ++ } ++ } ++ ++ err = -EXDEV; ++ a_src.h_sb = file_inode(a_src.h_file)->i_sb; ++ a_dst.h_sb = file_inode(a_dst.h_file)->i_sb; ++ if (unlikely(a_src.h_sb != a_dst.h_sb)) { ++ AuDbgFile(src); ++ AuDbgFile(dst); ++ goto out_file; ++ } ++ ++ err = vfsub_copy_file_range(a_src.h_file, src_pos, a_dst.h_file, ++ dst_pos, len, flags); ++ ++out_file: ++ au_write_post(a_dst.inode, a_dst.h_file, &wpre, err); ++ fi_read_unlock(src); ++ au_read_post(a_src.inode, a_src.h_file); ++out_si: ++ si_read_unlock(a_dst.inode->i_sb); ++ inode_unlock(a_dst.inode); ++out: ++ return err; ++#undef a_src ++#undef a_dst ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++/* ++ * The locking order around current->mmap_sem. ++ * - in most and regular cases ++ * file I/O syscall -- aufs_read() or something ++ * -- si_rwsem for read -- mmap_sem ++ * (Note that [fdi]i_rwsem are released before mmap_sem). ++ * - in mmap case ++ * mmap(2) -- mmap_sem -- aufs_mmap() -- si_rwsem for read -- [fdi]i_rwsem ++ * This AB-BA order is definitely bad, but is not a problem since "si_rwsem for ++ * read" allows multiple processes to acquire it and [fdi]i_rwsem are not held ++ * in file I/O. Aufs needs to stop lockdep in aufs_mmap() though. ++ * It means that when aufs acquires si_rwsem for write, the process should never ++ * acquire mmap_sem. ++ * ++ * Actually aufs_iterate() holds [fdi]i_rwsem before mmap_sem, but this is not a ++ * problem either since any directory is not able to be mmap-ed. ++ * The similar scenario is applied to aufs_readlink() too. ++ */ ++ ++#if 0 /* stop calling security_file_mmap() */ ++/* cf. linux/include/linux/mman.h: calc_vm_prot_bits() */ ++#define AuConv_VM_PROT(f, b) _calc_vm_trans(f, VM_##b, PROT_##b) ++ ++static unsigned long au_arch_prot_conv(unsigned long flags) ++{ ++ /* currently ppc64 only */ ++#ifdef CONFIG_PPC64 ++ /* cf. linux/arch/powerpc/include/asm/mman.h */ ++ AuDebugOn(arch_calc_vm_prot_bits(-1) != VM_SAO); ++ return AuConv_VM_PROT(flags, SAO); ++#else ++ AuDebugOn(arch_calc_vm_prot_bits(-1)); ++ return 0; ++#endif ++} ++ ++static unsigned long au_prot_conv(unsigned long flags) ++{ ++ return AuConv_VM_PROT(flags, READ) ++ | AuConv_VM_PROT(flags, WRITE) ++ | AuConv_VM_PROT(flags, EXEC) ++ | au_arch_prot_conv(flags); ++} ++ ++/* cf. linux/include/linux/mman.h: calc_vm_flag_bits() */ ++#define AuConv_VM_MAP(f, b) _calc_vm_trans(f, VM_##b, MAP_##b) ++ ++static unsigned long au_flag_conv(unsigned long flags) ++{ ++ return AuConv_VM_MAP(flags, GROWSDOWN) ++ | AuConv_VM_MAP(flags, DENYWRITE) ++ | AuConv_VM_MAP(flags, LOCKED); ++} ++#endif ++ ++static int aufs_mmap(struct file *file, struct vm_area_struct *vma) ++{ ++ int err; ++ const unsigned char wlock ++ = (file->f_mode & FMODE_WRITE) && (vma->vm_flags & VM_SHARED); ++ struct super_block *sb; ++ struct file *h_file; ++ struct inode *inode; ++ ++ AuDbgVmRegion(file, vma); ++ ++ inode = file_inode(file); ++ sb = inode->i_sb; ++ lockdep_off(); ++ si_read_lock(sb, AuLock_NOPLMW); ++ ++ h_file = au_write_pre(file, wlock, /*wpre*/NULL); ++ lockdep_on(); ++ err = PTR_ERR(h_file); ++ if (IS_ERR(h_file)) ++ goto out; ++ ++ err = 0; ++ au_set_mmapped(file); ++ au_vm_file_reset(vma, h_file); ++ /* ++ * we cannot call security_mmap_file() here since it may acquire ++ * mmap_sem or i_mutex. ++ * ++ * err = security_mmap_file(h_file, au_prot_conv(vma->vm_flags), ++ * au_flag_conv(vma->vm_flags)); ++ */ ++ if (!err) ++ err = call_mmap(h_file, vma); ++ if (!err) { ++ au_vm_prfile_set(vma, file); ++ fsstack_copy_attr_atime(inode, file_inode(h_file)); ++ goto out_fput; /* success */ ++ } ++ au_unset_mmapped(file); ++ au_vm_file_reset(vma, file); ++ ++out_fput: ++ lockdep_off(); ++ ii_write_unlock(inode); ++ lockdep_on(); ++ fput(h_file); ++out: ++ lockdep_off(); ++ si_read_unlock(sb); ++ lockdep_on(); ++ AuTraceErr(err); ++ return err; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++static int aufs_fsync_nondir(struct file *file, loff_t start, loff_t end, ++ int datasync) ++{ ++ int err; ++ struct au_write_pre wpre; ++ struct inode *inode; ++ struct file *h_file; ++ ++ err = 0; /* -EBADF; */ /* posix? */ ++ if (unlikely(!(file->f_mode & FMODE_WRITE))) ++ goto out; ++ ++ inode = file_inode(file); ++ au_mtx_and_read_lock(inode); ++ ++ wpre.lsc = 0; ++ h_file = au_write_pre(file, /*do_ready*/1, &wpre); ++ err = PTR_ERR(h_file); ++ if (IS_ERR(h_file)) ++ goto out_unlock; ++ ++ err = vfsub_fsync(h_file, &h_file->f_path, datasync); ++ au_write_post(inode, h_file, &wpre, /*written*/0); ++ ++out_unlock: ++ si_read_unlock(inode->i_sb); ++ inode_unlock(inode); ++out: ++ return err; ++} ++ ++static int aufs_fasync(int fd, struct file *file, int flag) ++{ ++ int err; ++ struct file *h_file; ++ struct super_block *sb; ++ ++ sb = file->f_path.dentry->d_sb; ++ si_read_lock(sb, AuLock_FLUSH | AuLock_NOPLMW); ++ ++ h_file = au_read_pre(file, /*keep_fi*/0, /*lsc*/0); ++ err = PTR_ERR(h_file); ++ if (IS_ERR(h_file)) ++ goto out; ++ ++ if (h_file->f_op->fasync) ++ err = h_file->f_op->fasync(fd, h_file, flag); ++ fput(h_file); /* instead of au_read_post() */ ++ ++out: ++ si_read_unlock(sb); ++ return err; ++} ++ ++static int aufs_setfl(struct file *file, unsigned long arg) ++{ ++ int err; ++ struct file *h_file; ++ struct super_block *sb; ++ ++ sb = file->f_path.dentry->d_sb; ++ si_read_lock(sb, AuLock_FLUSH | AuLock_NOPLMW); ++ ++ h_file = au_read_pre(file, /*keep_fi*/0, /*lsc*/0); ++ err = PTR_ERR(h_file); ++ if (IS_ERR(h_file)) ++ goto out; ++ ++ /* stop calling h_file->fasync */ ++ arg |= vfsub_file_flags(file) & FASYNC; ++ err = setfl(/*unused fd*/-1, h_file, arg); ++ fput(h_file); /* instead of au_read_post() */ ++ ++out: ++ si_read_unlock(sb); ++ return err; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++/* no one supports this operation, currently */ ++#if 0 /* reserved for future use */ ++static ssize_t aufs_sendpage(struct file *file, struct page *page, int offset, ++ size_t len, loff_t *pos, int more) ++{ ++} ++#endif ++ ++/* ---------------------------------------------------------------------- */ ++ ++const struct file_operations aufs_file_fop = { ++ .owner = THIS_MODULE, ++ ++ .llseek = default_llseek, ++ ++ .read_iter = aufs_read_iter, ++ .write_iter = aufs_write_iter, ++ ++#ifdef CONFIG_AUFS_POLL ++ .poll = aufs_poll, ++#endif ++ .unlocked_ioctl = aufs_ioctl_nondir, ++#ifdef CONFIG_COMPAT ++ .compat_ioctl = aufs_compat_ioctl_nondir, ++#endif ++ .mmap = aufs_mmap, ++ .open = aufs_open_nondir, ++ .flush = aufs_flush_nondir, ++ .release = aufs_release_nondir, ++ .fsync = aufs_fsync_nondir, ++ .fasync = aufs_fasync, ++ /* .sendpage = aufs_sendpage, */ ++ .setfl = aufs_setfl, ++ .splice_write = aufs_splice_write, ++ .splice_read = aufs_splice_read, ++#if 0 /* reserved for future use */ ++ .aio_splice_write = aufs_aio_splice_write, ++ .aio_splice_read = aufs_aio_splice_read, ++#endif ++ .fallocate = aufs_fallocate, ++ .copy_file_range = aufs_copy_file_range ++}; +diff -Naur linux-5.15/fs/aufs/fsctx.c aufs5-linux-aufs5.15/fs/aufs/fsctx.c +--- linux-5.15/fs/aufs/fsctx.c 1970-01-01 03:00:00.000000000 +0300 ++++ aufs5-linux-aufs5.15/fs/aufs/fsctx.c 2022-03-07 13:48:09.000000000 +0300 +@@ -0,0 +1,1229 @@ ++// SPDX-License-Identifier: GPL-2.0 ++/* ++ * Copyright (C) 2022 Junjiro R. Okajima ++ */ ++ ++/* ++ * fs context, aka new mount api ++ */ ++ ++#include ++#include "aufs.h" ++ ++struct au_fsctx_opts { ++ aufs_bindex_t bindex; ++ unsigned char skipped; ++ struct au_opt *opt, *opt_tail; ++ struct super_block *sb; ++ struct au_sbinfo *sbinfo; ++ struct au_opts opts; ++}; ++ ++/* stop extra interpretation of errno in mount(8), and strange error messages */ ++static int cvt_err(int err) ++{ ++ AuTraceErr(err); ++ ++ switch (err) { ++ case -ENOENT: ++ case -ENOTDIR: ++ case -EEXIST: ++ case -EIO: ++ err = -EINVAL; ++ } ++ return err; ++} ++ ++static int au_fsctx_reconfigure(struct fs_context *fc) ++{ ++ int err, do_dx; ++ unsigned int mntflags; ++ struct dentry *root; ++ struct super_block *sb; ++ struct inode *inode; ++ struct au_fsctx_opts *a = fc->fs_private; ++ ++ AuDbg("fc %p\n", fc); ++ ++ root = fc->root; ++ sb = root->d_sb; ++ err = si_write_lock(sb, AuLock_FLUSH | AuLock_NOPLM); ++ if (!err) { ++ di_write_lock_child(root); ++ err = au_opts_verify(sb, fc->sb_flags, /*pending*/0); ++ aufs_write_unlock(root); ++ } ++ ++ inode = d_inode(root); ++ inode_lock(inode); ++ err = si_write_lock(sb, AuLock_FLUSH | AuLock_NOPLM); ++ if (unlikely(err)) ++ goto out; ++ di_write_lock_child(root); ++ ++ /* au_opts_remount() may return an error */ ++ err = au_opts_remount(sb, &a->opts); ++ ++ if (au_ftest_opts(a->opts.flags, REFRESH)) ++ au_remount_refresh(sb, au_ftest_opts(a->opts.flags, ++ REFRESH_IDOP)); ++ ++ if (au_ftest_opts(a->opts.flags, REFRESH_DYAOP)) { ++ mntflags = au_mntflags(sb); ++ do_dx = !!au_opt_test(mntflags, DIO); ++ au_dy_arefresh(do_dx); ++ } ++ ++ au_fhsm_wrote_all(sb, /*force*/1); /* ?? */ ++ aufs_write_unlock(root); ++ ++out: ++ inode_unlock(inode); ++ err = cvt_err(err); ++ AuTraceErr(err); ++ ++ return err; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++static int au_fsctx_fill_super(struct super_block *sb, struct fs_context *fc) ++{ ++ int err; ++ struct au_fsctx_opts *a = fc->fs_private; ++ struct au_sbinfo *sbinfo = a->sbinfo; ++ struct dentry *root; ++ struct inode *inode; ++ ++ sbinfo->si_sb = sb; ++ sb->s_fs_info = sbinfo; ++ kobject_get(&sbinfo->si_kobj); ++ ++ __si_write_lock(sb); ++ si_pid_set(sb); ++ au_sbilist_add(sb); ++ ++ /* all timestamps always follow the ones on the branch */ ++ sb->s_flags |= SB_NOATIME | SB_NODIRATIME; ++ sb->s_flags |= SB_I_VERSION; /* do we really need this? */ ++ sb->s_op = &aufs_sop; ++ sb->s_d_op = &aufs_dop; ++ sb->s_magic = AUFS_SUPER_MAGIC; ++ sb->s_maxbytes = 0; ++ sb->s_stack_depth = 1; ++ au_export_init(sb); ++ au_xattr_init(sb); ++ ++ err = au_alloc_root(sb); ++ if (unlikely(err)) { ++ si_write_unlock(sb); ++ goto out; ++ } ++ root = sb->s_root; ++ inode = d_inode(root); ++ ii_write_lock_parent(inode); ++ aufs_write_unlock(root); ++ ++ /* lock vfs_inode first, then aufs. */ ++ inode_lock(inode); ++ aufs_write_lock(root); ++ err = au_opts_mount(sb, &a->opts); ++ AuTraceErr(err); ++ if (!err && au_ftest_si(sbinfo, NO_DREVAL)) { ++ sb->s_d_op = &aufs_dop_noreval; ++ /* infofc(fc, "%ps", sb->s_d_op); */ ++ pr_info("%ps\n", sb->s_d_op); ++ au_refresh_dop(root, /*force_reval*/0); ++ sbinfo->si_iop_array = aufs_iop_nogetattr; ++ au_refresh_iop(inode, /*force_getattr*/0); ++ } ++ aufs_write_unlock(root); ++ inode_unlock(inode); ++ if (!err) ++ goto out; /* success */ ++ ++ dput(root); ++ sb->s_root = NULL; ++ ++out: ++ if (unlikely(err)) ++ kobject_put(&sbinfo->si_kobj); ++ AuTraceErr(err); ++ err = cvt_err(err); ++ AuTraceErr(err); ++ return err; ++} ++ ++static int au_fsctx_get_tree(struct fs_context *fc) ++{ ++ int err; ++ ++ AuDbg("fc %p\n", fc); ++ err = get_tree_nodev(fc, au_fsctx_fill_super); ++ ++ AuTraceErr(err); ++ return err; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++static void au_fsctx_dump(struct au_opts *opts) ++{ ++#ifdef CONFIG_AUFS_DEBUG ++ /* reduce stack space */ ++ union { ++ struct au_opt_add *add; ++ struct au_opt_del *del; ++ struct au_opt_mod *mod; ++ struct au_opt_xino *xino; ++ struct au_opt_xino_itrunc *xino_itrunc; ++ struct au_opt_wbr_create *create; ++ } u; ++ struct au_opt *opt; ++ ++ opt = opts->opt; ++ while (opt->type != Opt_tail) { ++ switch (opt->type) { ++ case Opt_add: ++ u.add = &opt->add; ++ AuDbg("add {b%d, %s, 0x%x, %p}\n", ++ u.add->bindex, u.add->pathname, u.add->perm, ++ u.add->path.dentry); ++ break; ++ case Opt_del: ++ fallthrough; ++ case Opt_idel: ++ u.del = &opt->del; ++ AuDbg("del {%s, %p}\n", ++ u.del->pathname, u.del->h_path.dentry); ++ break; ++ case Opt_mod: ++ fallthrough; ++ case Opt_imod: ++ u.mod = &opt->mod; ++ AuDbg("mod {%s, 0x%x, %p}\n", ++ u.mod->path, u.mod->perm, u.mod->h_root); ++ break; ++ case Opt_append: ++ u.add = &opt->add; ++ AuDbg("append {b%d, %s, 0x%x, %p}\n", ++ u.add->bindex, u.add->pathname, u.add->perm, ++ u.add->path.dentry); ++ break; ++ case Opt_prepend: ++ u.add = &opt->add; ++ AuDbg("prepend {b%d, %s, 0x%x, %p}\n", ++ u.add->bindex, u.add->pathname, u.add->perm, ++ u.add->path.dentry); ++ break; ++ ++ case Opt_dirwh: ++ AuDbg("dirwh %d\n", opt->dirwh); ++ break; ++ case Opt_rdcache: ++ AuDbg("rdcache %d\n", opt->rdcache); ++ break; ++ case Opt_rdblk: ++ AuDbg("rdblk %d\n", opt->rdblk); ++ break; ++ case Opt_rdhash: ++ AuDbg("rdhash %u\n", opt->rdhash); ++ break; ++ ++ case Opt_xino: ++ u.xino = &opt->xino; ++ AuDbg("xino {%s %pD}\n", u.xino->path, u.xino->file); ++ break; ++ ++#define au_fsctx_TF(name) \ ++ case Opt_##name: \ ++ if (opt->tf) \ ++ AuLabel(name); \ ++ else \ ++ AuLabel(no##name); \ ++ break; ++ ++ /* simple true/false flag */ ++ au_fsctx_TF(trunc_xino); ++ au_fsctx_TF(trunc_xib); ++ au_fsctx_TF(dirperm1); ++ au_fsctx_TF(plink); ++ au_fsctx_TF(shwh); ++ au_fsctx_TF(dio); ++ au_fsctx_TF(warn_perm); ++ au_fsctx_TF(verbose); ++ au_fsctx_TF(sum); ++ au_fsctx_TF(dirren); ++ au_fsctx_TF(acl); ++#undef au_fsctx_TF ++ ++ case Opt_trunc_xino_path: ++ fallthrough; ++ case Opt_itrunc_xino: ++ u.xino_itrunc = &opt->xino_itrunc; ++ AuDbg("trunc_xino %d\n", u.xino_itrunc->bindex); ++ break; ++ case Opt_noxino: ++ AuLabel(noxino); ++ break; ++ ++ case Opt_list_plink: ++ AuLabel(list_plink); ++ break; ++ case Opt_udba: ++ AuDbg("udba %d, %s\n", ++ opt->udba, au_optstr_udba(opt->udba)); ++ break; ++ case Opt_diropq_a: ++ AuLabel(diropq_a); ++ break; ++ case Opt_diropq_w: ++ AuLabel(diropq_w); ++ break; ++ case Opt_wsum: ++ AuLabel(wsum); ++ break; ++ case Opt_wbr_create: ++ u.create = &opt->wbr_create; ++ AuDbg("create %d, %s\n", u.create->wbr_create, ++ au_optstr_wbr_create(u.create->wbr_create)); ++ switch (u.create->wbr_create) { ++ case AuWbrCreate_MFSV: ++ fallthrough; ++ case AuWbrCreate_PMFSV: ++ AuDbg("%d sec\n", u.create->mfs_second); ++ break; ++ case AuWbrCreate_MFSRR: ++ fallthrough; ++ case AuWbrCreate_TDMFS: ++ AuDbg("%llu watermark\n", ++ u.create->mfsrr_watermark); ++ break; ++ case AuWbrCreate_MFSRRV: ++ fallthrough; ++ case AuWbrCreate_TDMFSV: ++ fallthrough; ++ case AuWbrCreate_PMFSRRV: ++ AuDbg("%llu watermark, %d sec\n", ++ u.create->mfsrr_watermark, ++ u.create->mfs_second); ++ break; ++ } ++ break; ++ case Opt_wbr_copyup: ++ AuDbg("copyup %d, %s\n", opt->wbr_copyup, ++ au_optstr_wbr_copyup(opt->wbr_copyup)); ++ break; ++ case Opt_fhsm_sec: ++ AuDbg("fhsm_sec %u\n", opt->fhsm_second); ++ break; ++ ++ default: ++ AuDbg("type %d\n", opt->type); ++ BUG(); ++ } ++ opt++; ++ } ++#endif ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++/* ++ * For conditionally compiled mount options. ++ * Instead of fsparam_flag_no(), use this macro to distinguish ignore_silent. ++ */ ++#define au_ignore_flag(name, action) \ ++ fsparam_flag(name, action), \ ++ fsparam_flag("no" name, Opt_ignore_silent) ++ ++const struct fs_parameter_spec aufs_fsctx_paramspec[] = { ++ fsparam_string("br", Opt_br), ++ ++ /* "add=%d:%s" or "ins=%d:%s" */ ++ fsparam_string("add", Opt_add), ++ fsparam_string("ins", Opt_add), ++ fsparam_path("append", Opt_append), ++ fsparam_path("prepend", Opt_prepend), ++ ++ fsparam_path("del", Opt_del), ++ /* fsparam_s32("idel", Opt_idel), */ ++ fsparam_path("mod", Opt_mod), ++ /* fsparam_string("imod", Opt_imod), */ ++ ++ fsparam_s32("dirwh", Opt_dirwh), ++ ++ fsparam_path("xino", Opt_xino), ++ fsparam_flag("noxino", Opt_noxino), ++ fsparam_flag_no("trunc_xino", Opt_trunc_xino), ++ /* "trunc_xino_v=%d:%d" */ ++ /* fsparam_string("trunc_xino_v", Opt_trunc_xino_v), */ ++ fsparam_path("trunc_xino", Opt_trunc_xino_path), ++ fsparam_s32("itrunc_xino", Opt_itrunc_xino), ++ /* fsparam_path("zxino", Opt_zxino), */ ++ fsparam_flag_no("trunc_xib", Opt_trunc_xib), ++ ++#ifdef CONFIG_PROC_FS ++ fsparam_flag_no("plink", Opt_plink), ++#else ++ au_ignore_flag("plink", Opt_ignore), ++#endif ++ ++#ifdef CONFIG_AUFS_DEBUG ++ fsparam_flag("list_plink", Opt_list_plink), ++#endif ++ ++ fsparam_string("udba", Opt_udba), ++ ++ fsparam_flag_no("dio", Opt_dio), ++ ++#ifdef CONFIG_AUFS_DIRREN ++ fsparam_flag_no("dirren", Opt_dirren), ++#else ++ au_ignore_flag("dirren", Opt_ignore), ++#endif ++ ++#ifdef CONFIG_AUFS_FHSM ++ fsparam_s32("fhsm_sec", Opt_fhsm_sec), ++#else ++ fsparam_s32("fhsm_sec", Opt_ignore), ++#endif ++ ++ /* always | a | whiteouted | w */ ++ fsparam_string("diropq", Opt_diropq), ++ ++ fsparam_flag_no("warn_perm", Opt_warn_perm), ++ ++#ifdef CONFIG_AUFS_SHWH ++ fsparam_flag_no("shwh", Opt_shwh), ++#else ++ au_ignore_flag("shwh", Opt_err), ++#endif ++ ++ fsparam_flag_no("dirperm1", Opt_dirperm1), ++ ++ fsparam_flag_no("verbose", Opt_verbose), ++ fsparam_flag("v", Opt_verbose), ++ fsparam_flag("quiet", Opt_noverbose), ++ fsparam_flag("q", Opt_noverbose), ++ /* user-space may handle this */ ++ fsparam_flag("silent", Opt_noverbose), ++ ++ fsparam_flag_no("sum", Opt_sum), ++ fsparam_flag("wsum", Opt_wsum), ++ ++ fsparam_s32("rdcache", Opt_rdcache), ++ /* "def" or s32 */ ++ fsparam_string("rdblk", Opt_rdblk), ++ /* "def" or s32 */ ++ fsparam_string("rdhash", Opt_rdhash), ++ ++ fsparam_string("create", Opt_wbr_create), ++ fsparam_string("create_policy", Opt_wbr_create), ++ fsparam_string("cpup", Opt_wbr_copyup), ++ fsparam_string("copyup", Opt_wbr_copyup), ++ fsparam_string("copyup_policy", Opt_wbr_copyup), ++ ++ /* generic VFS flag */ ++#ifdef CONFIG_FS_POSIX_ACL ++ fsparam_flag_no("acl", Opt_acl), ++#else ++ au_ignore_flag("acl"), ++#endif ++ ++ /* internal use for the scripts */ ++ fsparam_string("si", Opt_ignore_silent), ++ ++ /* obsoleted, keep them temporary */ ++ fsparam_flag("nodlgt", Opt_ignore_silent), ++ fsparam_flag("clean_plink", Opt_ignore), ++ fsparam_string("dirs", Opt_br), ++ fsparam_u32("debug", Opt_ignore), ++ /* "whiteout" or "all" */ ++ fsparam_string("delete", Opt_ignore), ++ fsparam_string("imap", Opt_ignore), ++ ++ /* temporary workaround, due to old mount(8)? */ ++ fsparam_flag("relatime", Opt_ignore_silent), ++ ++ {} ++}; ++ ++static int au_fsctx_parse_do_add(struct fs_context *fc, struct au_opt *opt, ++ char *brspec, size_t speclen, ++ aufs_bindex_t bindex) ++{ ++ int err; ++ char *p; ++ ++ AuDbg("brspec %s\n", brspec); ++ ++ err = -ENOMEM; ++ if (!speclen) ++ speclen = strlen(brspec); ++ /* will be freed by au_fsctx_free() */ ++ p = kmemdup_nul(brspec, speclen, GFP_NOFS); ++ if (unlikely(!p)) { ++ errorfc(fc, "failed in %s", brspec); ++ goto out; ++ } ++ err = au_opt_add(opt, p, fc->sb_flags, bindex); ++ ++out: ++ AuTraceErr(err); ++ return err; ++} ++ ++static int au_fsctx_parse_br(struct fs_context *fc, char *brspec) ++{ ++ int err; ++ char *p; ++ struct au_fsctx_opts *a = fc->fs_private; ++ struct au_opt *opt = a->opt; ++ aufs_bindex_t bindex = a->bindex; ++ ++ AuDbg("brspec %s\n", brspec); ++ ++ err = -EINVAL; ++ while ((p = strsep(&brspec, ":")) && *p) { ++ err = au_fsctx_parse_do_add(fc, opt, p, /*len*/0, bindex); ++ AuTraceErr(err); ++ if (unlikely(err)) ++ break; ++ bindex++; ++ opt++; ++ if (unlikely(opt > a->opt_tail)) { ++ err = -E2BIG; ++ bindex--; ++ opt--; ++ break; ++ } ++ opt->type = Opt_tail; ++ a->skipped = 1; ++ } ++ a->bindex = bindex; ++ a->opt = opt; ++ ++ AuTraceErr(err); ++ return err; ++} ++ ++static int au_fsctx_parse_add(struct fs_context *fc, char *addspec) ++{ ++ int err, n; ++ char *p; ++ struct au_fsctx_opts *a = fc->fs_private; ++ struct au_opt *opt = a->opt; ++ ++ err = -EINVAL; ++ p = strchr(addspec, ':'); ++ if (unlikely(!p)) { ++ errorfc(fc, "bad arg in %s", addspec); ++ goto out; ++ } ++ *p++ = '\0'; ++ err = kstrtoint(addspec, 0, &n); ++ if (unlikely(err)) { ++ errorfc(fc, "bad integer in %s", addspec); ++ goto out; ++ } ++ AuDbg("n %d\n", n); ++ err = au_fsctx_parse_do_add(fc, opt, p, /*len*/0, n); ++ ++out: ++ AuTraceErr(err); ++ return err; ++} ++ ++static int au_fsctx_parse_del(struct fs_context *fc, struct au_opt_del *del, ++ struct fs_parameter *param) ++{ ++ int err; ++ ++ err = -ENOMEM; ++ /* will be freed by au_fsctx_free() */ ++ del->pathname = kmemdup_nul(param->string, param->size, GFP_NOFS); ++ if (unlikely(!del->pathname)) ++ goto out; ++ AuDbg("del %s\n", del->pathname); ++ err = vfsub_kern_path(del->pathname, AuOpt_LkupDirFlags, &del->h_path); ++ if (unlikely(err)) ++ errorfc(fc, "lookup failed %s (%d)", del->pathname, err); ++ ++out: ++ AuTraceErr(err); ++ return err; ++} ++ ++#if 0 /* reserved for future use */ ++static int au_fsctx_parse_idel(struct fs_context *fc, struct au_opt_del *del, ++ aufs_bindex_t bindex) ++{ ++ int err; ++ struct super_block *sb; ++ struct dentry *root; ++ struct au_fsctx_opts *a = fc->fs_private; ++ ++ sb = a->sb; ++ AuDebugOn(!sb); ++ ++ err = -EINVAL; ++ root = sb->s_root; ++ aufs_read_lock(root, AuLock_FLUSH); ++ if (bindex < 0 || au_sbbot(sb) < bindex) { ++ errorfc(fc, "out of bounds, %d", bindex); ++ goto out; ++ } ++ ++ err = 0; ++ del->h_path.dentry = dget(au_h_dptr(root, bindex)); ++ del->h_path.mnt = mntget(au_sbr_mnt(sb, bindex)); ++ ++out: ++ aufs_read_unlock(root, !AuLock_IR); ++ AuTraceErr(err); ++ return err; ++} ++#endif ++ ++static int au_fsctx_parse_mod(struct fs_context *fc, struct au_opt_mod *mod, ++ struct fs_parameter *param) ++{ ++ int err; ++ struct path path; ++ char *p; ++ ++ err = -ENOMEM; ++ /* will be freed by au_fsctx_free() */ ++ mod->path = kmemdup_nul(param->string, param->size, GFP_NOFS); ++ if (unlikely(!mod->path)) ++ goto out; ++ ++ err = -EINVAL; ++ p = strchr(mod->path, '='); ++ if (unlikely(!p)) { ++ errorfc(fc, "no permission %s", mod->path); ++ goto out; ++ } ++ ++ *p++ = 0; ++ err = vfsub_kern_path(mod->path, AuOpt_LkupDirFlags, &path); ++ if (unlikely(err)) { ++ errorfc(fc, "lookup failed %s (%d)", mod->path, err); ++ goto out; ++ } ++ ++ mod->perm = au_br_perm_val(p); ++ AuDbg("mod path %s, perm 0x%x, %s", mod->path, mod->perm, p); ++ mod->h_root = dget(path.dentry); ++ path_put(&path); ++ ++out: ++ AuTraceErr(err); ++ return err; ++} ++ ++#if 0 /* reserved for future use */ ++static int au_fsctx_parse_imod(struct fs_context *fc, struct au_opt_mod *mod, ++ char *ibrspec) ++{ ++ int err, n; ++ char *p; ++ struct super_block *sb; ++ struct dentry *root; ++ struct au_fsctx_opts *a = fc->fs_private; ++ ++ sb = a->sb; ++ AuDebugOn(!sb); ++ ++ err = -EINVAL; ++ p = strchr(ibrspec, ':'); ++ if (unlikely(!p)) { ++ errorfc(fc, "no index, %s", ibrspec); ++ goto out; ++ } ++ *p++ = '\0'; ++ err = kstrtoint(ibrspec, 0, &n); ++ if (unlikely(err)) { ++ errorfc(fc, "bad integer in %s", ibrspec); ++ goto out; ++ } ++ AuDbg("n %d\n", n); ++ ++ root = sb->s_root; ++ aufs_read_lock(root, AuLock_FLUSH); ++ if (n < 0 || au_sbbot(sb) < n) { ++ errorfc(fc, "out of bounds, %d", bindex); ++ goto out_root; ++ } ++ ++ err = 0; ++ mod->perm = au_br_perm_val(p); ++ AuDbg("mod path %s, perm 0x%x, %s\n", ++ mod->path, mod->perm, p); ++ mod->h_root = dget(au_h_dptr(root, bindex)); ++ ++out_root: ++ aufs_read_unlock(root, !AuLock_IR); ++out: ++ AuTraceErr(err); ++ return err; ++} ++#endif ++ ++static int au_fsctx_parse_xino(struct fs_context *fc, ++ struct au_opt_xino *xino, ++ struct fs_parameter *param) ++{ ++ int err; ++ struct au_fsctx_opts *a = fc->fs_private; ++ ++ err = -ENOMEM; ++ /* will be freed by au_opts_free() */ ++ xino->path = kmemdup_nul(param->string, param->size, GFP_NOFS); ++ if (unlikely(!xino->path)) ++ goto out; ++ AuDbg("path %s\n", xino->path); ++ ++ xino->file = au_xino_create(a->sb, xino->path, /*silent*/0, ++ /*wbrtop*/0); ++ err = PTR_ERR(xino->file); ++ if (IS_ERR(xino->file)) { ++ xino->file = NULL; ++ goto out; ++ } ++ ++ err = 0; ++ if (unlikely(a->sb && xino->file->f_path.dentry->d_sb == a->sb)) { ++ err = -EINVAL; ++ errorfc(fc, "%s must be outside", xino->path); ++ } ++ ++out: ++ AuTraceErr(err); ++ return err; ++} ++ ++static ++int au_fsctx_parse_xino_itrunc_path(struct fs_context *fc, ++ struct au_opt_xino_itrunc *xino_itrunc, ++ char *pathname) ++{ ++ int err; ++ aufs_bindex_t bbot, bindex; ++ struct path path; ++ struct dentry *root; ++ struct au_fsctx_opts *a = fc->fs_private; ++ ++ AuDebugOn(!a->sb); ++ ++ err = vfsub_kern_path(pathname, AuOpt_LkupDirFlags, &path); ++ if (unlikely(err)) { ++ errorfc(fc, "lookup failed %s (%d)", pathname, err); ++ goto out; ++ } ++ ++ xino_itrunc->bindex = -1; ++ root = a->sb->s_root; ++ aufs_read_lock(root, AuLock_FLUSH); ++ bbot = au_sbbot(a->sb); ++ for (bindex = 0; bindex <= bbot; bindex++) { ++ if (au_h_dptr(root, bindex) == path.dentry) { ++ xino_itrunc->bindex = bindex; ++ break; ++ } ++ } ++ aufs_read_unlock(root, !AuLock_IR); ++ path_put(&path); ++ ++ if (unlikely(xino_itrunc->bindex < 0)) { ++ err = -EINVAL; ++ errorfc(fc, "no such branch %s", pathname); ++ } ++ ++out: ++ AuTraceErr(err); ++ return err; ++} ++ ++static int au_fsctx_parse_xino_itrunc(struct fs_context *fc, ++ struct au_opt_xino_itrunc *xino_itrunc, ++ unsigned int bindex) ++{ ++ int err; ++ aufs_bindex_t bbot; ++ struct super_block *sb; ++ struct au_fsctx_opts *a = fc->fs_private; ++ ++ sb = a->sb; ++ AuDebugOn(!sb); ++ ++ err = 0; ++ si_noflush_read_lock(sb); ++ bbot = au_sbbot(sb); ++ si_read_unlock(sb); ++ if (bindex <= bbot) ++ xino_itrunc->bindex = bindex; ++ else { ++ err = -EINVAL; ++ errorfc(fc, "out of bounds, %u", bindex); ++ } ++ ++ AuTraceErr(err); ++ return err; ++} ++ ++static int au_fsctx_parse_param(struct fs_context *fc, struct fs_parameter *param) ++{ ++ int err, token; ++ struct fs_parse_result result; ++ struct au_fsctx_opts *a = fc->fs_private; ++ struct au_opt *opt = a->opt; ++ ++ AuDbg("fc %p, param {key %s, string %s}\n", ++ fc, param->key, param->string); ++ err = fs_parse(fc, aufs_fsctx_paramspec, param, &result); ++ if (unlikely(err < 0)) ++ goto out; ++ token = err; ++ AuDbg("token %d, res{negated %d, uint64 %llu}\n", ++ token, result.negated, result.uint_64); ++ ++ err = -EINVAL; ++ a->skipped = 0; ++ switch (token) { ++ case Opt_br: ++ err = au_fsctx_parse_br(fc, param->string); ++ break; ++ case Opt_add: ++ err = au_fsctx_parse_add(fc, param->string); ++ break; ++ case Opt_append: ++ err = au_fsctx_parse_do_add(fc, opt, param->string, param->size, ++ /*dummy bindex*/1); ++ break; ++ case Opt_prepend: ++ err = au_fsctx_parse_do_add(fc, opt, param->string, param->size, ++ /*bindex*/0); ++ break; ++ ++ case Opt_del: ++ err = au_fsctx_parse_del(fc, &opt->del, param); ++ break; ++#if 0 /* reserved for future use */ ++ case Opt_idel: ++ if (!a->sb) { ++ err = 0; ++ a->skipped = 1; ++ break; ++ } ++ del->pathname = "(indexed)"; ++ err = au_opts_parse_idel(fc, &opt->del, result.uint_32); ++ break; ++#endif ++ ++ case Opt_mod: ++ err = au_fsctx_parse_mod(fc, &opt->mod, param); ++ break; ++#ifdef IMOD /* reserved for future use */ ++ case Opt_imod: ++ if (!a->sb) { ++ err = 0; ++ a->skipped = 1; ++ break; ++ } ++ u.mod->path = "(indexed)"; ++ err = au_opts_parse_imod(fc, &opt->mod, param->string); ++ break; ++#endif ++ ++ case Opt_xino: ++ err = au_fsctx_parse_xino(fc, &opt->xino, param); ++ break; ++ case Opt_trunc_xino_path: ++ if (!a->sb) { ++ errorfc(fc, "no such branch %s", param->string); ++ break; ++ } ++ err = au_fsctx_parse_xino_itrunc_path(fc, &opt->xino_itrunc, ++ param->string); ++ break; ++#if 0 ++ case Opt_trunc_xino_v: ++ if (!a->sb) { ++ err = 0; ++ a->skipped = 1; ++ break; ++ } ++ err = au_fsctx_parse_xino_itrunc_path(fc, &opt->xino_itrunc, ++ param->string); ++ break; ++#endif ++ case Opt_itrunc_xino: ++ if (!a->sb) { ++ errorfc(fc, "out of bounds %s", param->string); ++ break; ++ } ++ err = au_fsctx_parse_xino_itrunc(fc, &opt->xino_itrunc, ++ result.int_32); ++ break; ++ ++ case Opt_dirwh: ++ err = 0; ++ opt->dirwh = result.int_32; ++ break; ++ ++ case Opt_rdcache: ++ if (unlikely(result.int_32 > AUFS_RDCACHE_MAX)) { ++ errorfc(fc, "rdcache must be smaller than %d", ++ AUFS_RDCACHE_MAX); ++ break; ++ } ++ err = 0; ++ opt->rdcache = result.int_32; ++ break; ++ ++ case Opt_rdblk: ++ err = 0; ++ opt->rdblk = AUFS_RDBLK_DEF; ++ if (!strcmp(param->string, "def")) ++ break; ++ ++ err = kstrtoint(param->string, 0, &result.int_32); ++ if (unlikely(err)) { ++ errorfc(fc, "bad value in %s", param->key); ++ break; ++ } ++ err = -EINVAL; ++ if (unlikely(result.int_32 < 0 ++ || result.int_32 > KMALLOC_MAX_SIZE)) { ++ errorfc(fc, "bad value in %s", param->key); ++ break; ++ } ++ if (unlikely(result.int_32 && result.int_32 < NAME_MAX)) { ++ errorfc(fc, "rdblk must be larger than %d", NAME_MAX); ++ break; ++ } ++ err = 0; ++ opt->rdblk = result.int_32; ++ break; ++ ++ case Opt_rdhash: ++ err = 0; ++ opt->rdhash = AUFS_RDHASH_DEF; ++ if (!strcmp(param->string, "def")) ++ break; ++ ++ err = kstrtoint(param->string, 0, &result.int_32); ++ if (unlikely(err)) { ++ errorfc(fc, "bad value in %s", param->key); ++ break; ++ } ++ /* how about zero? */ ++ if (result.int_32 < 0 ++ || result.int_32 * sizeof(struct hlist_head) ++ > KMALLOC_MAX_SIZE) { ++ err = -EINVAL; ++ errorfc(fc, "bad integer in %s", param->key); ++ break; ++ } ++ opt->rdhash = result.int_32; ++ break; ++ ++ case Opt_diropq: ++ /* ++ * As other options, fs/aufs/opts.c can handle these strings by ++ * match_token(). But "diropq=" is deprecated now and will ++ * never have other value. So simple strcmp() is enough here. ++ */ ++ if (!strcmp(param->string, "a") || ++ !strcmp(param->string, "always")) { ++ err = 0; ++ opt->type = Opt_diropq_a; ++ } else if (!strcmp(param->string, "w") || ++ !strcmp(param->string, "whiteouted")) { ++ err = 0; ++ opt->type = Opt_diropq_w; ++ } else ++ errorfc(fc, "unknown value %s", param->string); ++ break; ++ ++ case Opt_udba: ++ opt->udba = au_udba_val(param->string); ++ if (opt->udba >= 0) ++ err = 0; ++ else ++ errorf(fc, "wrong value, %s", param->string); ++ break; ++ ++ case Opt_wbr_create: ++ opt->wbr_create.wbr_create ++ = au_wbr_create_val(param->string, &opt->wbr_create); ++ if (opt->wbr_create.wbr_create >= 0) ++ err = 0; ++ else ++ errorf(fc, "wrong value, %s", param->key); ++ break; ++ ++ case Opt_wbr_copyup: ++ opt->wbr_copyup = au_wbr_copyup_val(param->string); ++ if (opt->wbr_copyup >= 0) ++ err = 0; ++ else ++ errorfc(fc, "wrong value, %s", param->key); ++ break; ++ ++ case Opt_fhsm_sec: ++ if (unlikely(result.int_32 < 0)) { ++ errorfc(fc, "bad integer in %s\n", param->key); ++ break; ++ } ++ err = 0; ++ if (sysaufs_brs) ++ opt->fhsm_second = result.int_32; ++ else ++ warnfc(fc, "ignored %s %s", param->key, param->string); ++ break; ++ ++ /* simple true/false flag */ ++#define au_fsctx_TF(name) \ ++ case Opt_##name: \ ++ err = 0; \ ++ opt->tf = !result.negated; \ ++ break; ++ au_fsctx_TF(trunc_xino); ++ au_fsctx_TF(trunc_xib); ++ au_fsctx_TF(dirperm1); ++ au_fsctx_TF(plink); ++ au_fsctx_TF(shwh); ++ au_fsctx_TF(dio); ++ au_fsctx_TF(warn_perm); ++ au_fsctx_TF(verbose); ++ au_fsctx_TF(sum); ++ au_fsctx_TF(dirren); ++ au_fsctx_TF(acl); ++#undef au_fsctx_TF ++ ++ case Opt_noverbose: ++ err = 0; ++ opt->type = Opt_verbose; ++ opt->tf = false; ++ break; ++ ++ case Opt_noxino: ++ fallthrough; ++ case Opt_list_plink: ++ fallthrough; ++ case Opt_wsum: ++ err = 0; ++ break; ++ ++ case Opt_ignore: ++ warnfc(fc, "ignored %s", param->key); ++ fallthrough; ++ case Opt_ignore_silent: ++ a->skipped = 1; ++ err = 0; ++ break; ++ default: ++ a->skipped = 1; ++ err = -ENOPARAM; ++ break; ++ } ++ if (unlikely(err)) ++ goto out; ++ if (a->skipped) ++ goto out; ++ ++ switch (token) { ++ case Opt_br: ++ fallthrough; ++ case Opt_noverbose: ++ fallthrough; ++ case Opt_diropq: ++ break; ++ default: ++ opt->type = token; ++ break; ++ } ++ opt++; ++ if (unlikely(opt > a->opt_tail)) { ++ err = -E2BIG; ++ opt--; ++ } ++ opt->type = Opt_tail; ++ a->opt = opt; ++ ++out: ++ return err; ++} ++ ++/* ++ * these options accept both 'name=val' and 'name:val' form. ++ * some accept optional '=' in its value. ++ * eg. br:/br1=rw:/br2=ro and br=/br1=rw:/br2=ro ++ */ ++static inline unsigned int is_colonopt(char *str) ++{ ++#define do_test(name) \ ++ if (!strncmp(str, name ":", sizeof(name))) \ ++ return sizeof(name) - 1; ++ do_test("br"); ++ do_test("add"); ++ do_test("ins"); ++ do_test("append"); ++ do_test("prepend"); ++ do_test("del"); ++ /* do_test("idel"); */ ++ do_test("mod"); ++ /* do_test("imod"); */ ++#undef do_test ++ ++ return 0; ++} ++ ++static int au_fsctx_parse_monolithic(struct fs_context *fc, void *data) ++{ ++ int err; ++ unsigned int u; ++ char *str; ++ struct au_fsctx_opts *a = fc->fs_private; ++ ++ str = data; ++ AuDbg("str %s\n", str); ++ while (str) { ++ u = is_colonopt(str); ++ if (u) ++ str[u] = '='; ++ str = strchr(str, ','); ++ if (!str) ++ break; ++ str++; ++ } ++ str = data; ++ AuDbg("str %s\n", str); ++ ++ err = generic_parse_monolithic(fc, str); ++ AuTraceErr(err); ++ au_fsctx_dump(&a->opts); ++ ++ return err; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++static void au_fsctx_opts_free(struct au_opts *opts) ++{ ++ struct au_opt *opt; ++ ++ opt = opts->opt; ++ while (opt->type != Opt_tail) { ++ switch (opt->type) { ++ case Opt_add: ++ fallthrough; ++ case Opt_append: ++ fallthrough; ++ case Opt_prepend: ++ kfree(opt->add.pathname); ++ path_put(&opt->add.path); ++ break; ++ case Opt_del: ++ kfree(opt->del.pathname); ++ fallthrough; ++ case Opt_idel: ++ path_put(&opt->del.h_path); ++ break; ++ case Opt_mod: ++ kfree(opt->mod.path); ++ fallthrough; ++ case Opt_imod: ++ dput(opt->mod.h_root); ++ break; ++ case Opt_xino: ++ kfree(opt->xino.path); ++ fput(opt->xino.file); ++ break; ++ } ++ opt++; ++ } ++} ++ ++static void au_fsctx_free(struct fs_context *fc) ++{ ++ struct au_fsctx_opts *a = fc->fs_private; ++ ++ /* fs_type=%p, root=%pD */ ++ AuDbg("fc %p{sb_flags 0x%x, sb_flags_mask 0x%x, purpose %u\n", ++ fc, fc->sb_flags, fc->sb_flags_mask, fc->purpose); ++ ++ kobject_put(&a->sbinfo->si_kobj); ++ au_fsctx_opts_free(&a->opts); ++ free_page((unsigned long)a->opts.opt); ++ au_kfree_rcu(a); ++} ++ ++static const struct fs_context_operations au_fsctx_ops = { ++ .free = au_fsctx_free, ++ .parse_param = au_fsctx_parse_param, ++ .parse_monolithic = au_fsctx_parse_monolithic, ++ .get_tree = au_fsctx_get_tree, ++ .reconfigure = au_fsctx_reconfigure ++ /* ++ * nfs4 requires ->dup()? No. ++ * I don't know what is this ->dup() for. ++ */ ++}; ++ ++int aufs_fsctx_init(struct fs_context *fc) ++{ ++ int err; ++ struct au_fsctx_opts *a; ++ ++ /* fs_type=%p, root=%pD */ ++ AuDbg("fc %p{sb_flags 0x%x, sb_flags_mask 0x%x, purpose %u\n", ++ fc, fc->sb_flags, fc->sb_flags_mask, fc->purpose); ++ ++ /* they will be freed by au_fsctx_free() */ ++ err = -ENOMEM; ++ a = kzalloc(sizeof(*a), GFP_NOFS); ++ if (unlikely(!a)) ++ goto out; ++ a->bindex = 0; ++ a->opts.opt = (void *)__get_free_page(GFP_NOFS); ++ if (unlikely(!a->opts.opt)) ++ goto out_a; ++ a->opt = a->opts.opt; ++ a->opt->type = Opt_tail; ++ a->opts.max_opt = PAGE_SIZE / sizeof(*a->opts.opt); ++ a->opt_tail = a->opt + a->opts.max_opt - 1; ++ a->opts.sb_flags = fc->sb_flags; ++ ++ a->sb = NULL; ++ if (fc->root) { ++ AuDebugOn(fc->purpose != FS_CONTEXT_FOR_RECONFIGURE); ++ a->opts.flags = AuOpts_REMOUNT; ++ a->sb = fc->root->d_sb; ++ a->sbinfo = au_sbi(a->sb); ++ kobject_get(&a->sbinfo->si_kobj); ++ } else { ++ a->sbinfo = au_si_alloc(a->sb); ++ AuDebugOn(!a->sbinfo); ++ err = PTR_ERR(a->sbinfo); ++ if (IS_ERR(a->sbinfo)) ++ goto out_opt; ++ au_rw_write_unlock(&a->sbinfo->si_rwsem); ++ } ++ ++ err = 0; ++ fc->fs_private = a; ++ fc->ops = &au_fsctx_ops; ++ goto out; /* success */ ++ ++out_opt: ++ free_page((unsigned long)a->opts.opt); ++out_a: ++ au_kfree_rcu(a); ++out: ++ AuTraceErr(err); ++ return err; ++} +diff -Naur linux-5.15/fs/aufs/fstype.h aufs5-linux-aufs5.15/fs/aufs/fstype.h +--- linux-5.15/fs/aufs/fstype.h 1970-01-01 03:00:00.000000000 +0300 ++++ aufs5-linux-aufs5.15/fs/aufs/fstype.h 2022-03-07 13:48:09.000000000 +0300 +@@ -0,0 +1,388 @@ ++/* SPDX-License-Identifier: GPL-2.0 */ ++/* ++ * Copyright (C) 2005-2021 Junjiro R. Okajima ++ */ ++ ++/* ++ * judging filesystem type ++ */ ++ ++#ifndef __AUFS_FSTYPE_H__ ++#define __AUFS_FSTYPE_H__ ++ ++#ifdef __KERNEL__ ++ ++#include ++#include ++#include ++#include ++ ++static inline int au_test_aufs(struct super_block *sb) ++{ ++ return sb->s_magic == AUFS_SUPER_MAGIC; ++} ++ ++static inline const char *au_sbtype(struct super_block *sb) ++{ ++ return sb->s_type->name; ++} ++ ++static inline int au_test_iso9660(struct super_block *sb __maybe_unused) ++{ ++#if IS_ENABLED(CONFIG_ISO9660_FS) ++ return sb->s_magic == ISOFS_SUPER_MAGIC; ++#else ++ return 0; ++#endif ++} ++ ++static inline int au_test_romfs(struct super_block *sb __maybe_unused) ++{ ++#if IS_ENABLED(CONFIG_ROMFS_FS) ++ return sb->s_magic == ROMFS_MAGIC; ++#else ++ return 0; ++#endif ++} ++ ++static inline int au_test_cramfs(struct super_block *sb __maybe_unused) ++{ ++#if IS_ENABLED(CONFIG_CRAMFS) ++ return sb->s_magic == CRAMFS_MAGIC; ++#endif ++ return 0; ++} ++ ++static inline int au_test_nfs(struct super_block *sb __maybe_unused) ++{ ++#if IS_ENABLED(CONFIG_NFS_FS) ++ return sb->s_magic == NFS_SUPER_MAGIC; ++#else ++ return 0; ++#endif ++} ++ ++static inline int au_test_fuse(struct super_block *sb __maybe_unused) ++{ ++#if IS_ENABLED(CONFIG_FUSE_FS) ++ return sb->s_magic == FUSE_SUPER_MAGIC; ++#else ++ return 0; ++#endif ++} ++ ++static inline int au_test_xfs(struct super_block *sb __maybe_unused) ++{ ++#if IS_ENABLED(CONFIG_XFS_FS) ++ return sb->s_magic == XFS_SB_MAGIC; ++#else ++ return 0; ++#endif ++} ++ ++static inline int au_test_tmpfs(struct super_block *sb __maybe_unused) ++{ ++#ifdef CONFIG_TMPFS ++ return sb->s_magic == TMPFS_MAGIC; ++#else ++ return 0; ++#endif ++} ++ ++static inline int au_test_ecryptfs(struct super_block *sb __maybe_unused) ++{ ++#if IS_ENABLED(CONFIG_ECRYPT_FS) ++ return !strcmp(au_sbtype(sb), "ecryptfs"); ++#else ++ return 0; ++#endif ++} ++ ++static inline int au_test_ramfs(struct super_block *sb) ++{ ++ return sb->s_magic == RAMFS_MAGIC; ++} ++ ++static inline int au_test_ubifs(struct super_block *sb __maybe_unused) ++{ ++#if IS_ENABLED(CONFIG_UBIFS_FS) ++ return sb->s_magic == UBIFS_SUPER_MAGIC; ++#else ++ return 0; ++#endif ++} ++ ++static inline int au_test_procfs(struct super_block *sb __maybe_unused) ++{ ++#ifdef CONFIG_PROC_FS ++ return sb->s_magic == PROC_SUPER_MAGIC; ++#else ++ return 0; ++#endif ++} ++ ++static inline int au_test_sysfs(struct super_block *sb __maybe_unused) ++{ ++#ifdef CONFIG_SYSFS ++ return sb->s_magic == SYSFS_MAGIC; ++#else ++ return 0; ++#endif ++} ++ ++static inline int au_test_configfs(struct super_block *sb __maybe_unused) ++{ ++#if IS_ENABLED(CONFIG_CONFIGFS_FS) ++ return sb->s_magic == CONFIGFS_MAGIC; ++#else ++ return 0; ++#endif ++} ++ ++static inline int au_test_minix(struct super_block *sb __maybe_unused) ++{ ++#if IS_ENABLED(CONFIG_MINIX_FS) ++ return sb->s_magic == MINIX3_SUPER_MAGIC ++ || sb->s_magic == MINIX2_SUPER_MAGIC ++ || sb->s_magic == MINIX2_SUPER_MAGIC2 ++ || sb->s_magic == MINIX_SUPER_MAGIC ++ || sb->s_magic == MINIX_SUPER_MAGIC2; ++#else ++ return 0; ++#endif ++} ++ ++static inline int au_test_fat(struct super_block *sb __maybe_unused) ++{ ++#if IS_ENABLED(CONFIG_FAT_FS) ++ return sb->s_magic == MSDOS_SUPER_MAGIC; ++#else ++ return 0; ++#endif ++} ++ ++static inline int au_test_msdos(struct super_block *sb) ++{ ++ return au_test_fat(sb); ++} ++ ++static inline int au_test_vfat(struct super_block *sb) ++{ ++ return au_test_fat(sb); ++} ++ ++static inline int au_test_securityfs(struct super_block *sb __maybe_unused) ++{ ++#ifdef CONFIG_SECURITYFS ++ return sb->s_magic == SECURITYFS_MAGIC; ++#else ++ return 0; ++#endif ++} ++ ++static inline int au_test_squashfs(struct super_block *sb __maybe_unused) ++{ ++#if IS_ENABLED(CONFIG_SQUASHFS) ++ return sb->s_magic == SQUASHFS_MAGIC; ++#else ++ return 0; ++#endif ++} ++ ++static inline int au_test_btrfs(struct super_block *sb __maybe_unused) ++{ ++#if IS_ENABLED(CONFIG_BTRFS_FS) ++ return sb->s_magic == BTRFS_SUPER_MAGIC; ++#else ++ return 0; ++#endif ++} ++ ++static inline int au_test_xenfs(struct super_block *sb __maybe_unused) ++{ ++#if IS_ENABLED(CONFIG_XENFS) ++ return sb->s_magic == XENFS_SUPER_MAGIC; ++#else ++ return 0; ++#endif ++} ++ ++static inline int au_test_debugfs(struct super_block *sb __maybe_unused) ++{ ++#ifdef CONFIG_DEBUG_FS ++ return sb->s_magic == DEBUGFS_MAGIC; ++#else ++ return 0; ++#endif ++} ++ ++static inline int au_test_nilfs(struct super_block *sb __maybe_unused) ++{ ++#if IS_ENABLED(CONFIG_NILFS) ++ return sb->s_magic == NILFS_SUPER_MAGIC; ++#else ++ return 0; ++#endif ++} ++ ++static inline int au_test_hfsplus(struct super_block *sb __maybe_unused) ++{ ++#if IS_ENABLED(CONFIG_HFSPLUS_FS) ++ return sb->s_magic == HFSPLUS_SUPER_MAGIC; ++#else ++ return 0; ++#endif ++} ++ ++/* ---------------------------------------------------------------------- */ ++/* ++ * they can't be an aufs branch. ++ */ ++static inline int au_test_fs_unsuppoted(struct super_block *sb) ++{ ++ return ++#ifndef CONFIG_AUFS_BR_RAMFS ++ au_test_ramfs(sb) || ++#endif ++ au_test_procfs(sb) ++ || au_test_sysfs(sb) ++ || au_test_configfs(sb) ++ || au_test_debugfs(sb) ++ || au_test_securityfs(sb) ++ || au_test_xenfs(sb) ++ || au_test_ecryptfs(sb) ++ /* || !strcmp(au_sbtype(sb), "unionfs") */ ++ || au_test_aufs(sb); /* will be supported in next version */ ++} ++ ++static inline int au_test_fs_remote(struct super_block *sb) ++{ ++ return !au_test_tmpfs(sb) ++#ifdef CONFIG_AUFS_BR_RAMFS ++ && !au_test_ramfs(sb) ++#endif ++ && !(sb->s_type->fs_flags & FS_REQUIRES_DEV); ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++/* ++ * Note: these functions (below) are created after reading ->getattr() in all ++ * filesystems under linux/fs. it means we have to do so in every update... ++ */ ++ ++/* ++ * some filesystems require getattr to refresh the inode attributes before ++ * referencing. ++ * in most cases, we can rely on the inode attribute in NFS (or every remote fs) ++ * and leave the work for d_revalidate() ++ */ ++static inline int au_test_fs_refresh_iattr(struct super_block *sb) ++{ ++ return au_test_nfs(sb) ++ || au_test_fuse(sb) ++ /* || au_test_btrfs(sb) */ /* untested */ ++ ; ++} ++ ++/* ++ * filesystems which don't maintain i_size or i_blocks. ++ */ ++static inline int au_test_fs_bad_iattr_size(struct super_block *sb) ++{ ++ return au_test_xfs(sb) ++ || au_test_btrfs(sb) ++ || au_test_ubifs(sb) ++ || au_test_hfsplus(sb) /* maintained, but incorrect */ ++ /* || au_test_minix(sb) */ /* untested */ ++ ; ++} ++ ++/* ++ * filesystems which don't store the correct value in some of their inode ++ * attributes. ++ */ ++static inline int au_test_fs_bad_iattr(struct super_block *sb) ++{ ++ return au_test_fs_bad_iattr_size(sb) ++ || au_test_fat(sb) ++ || au_test_msdos(sb) ++ || au_test_vfat(sb); ++} ++ ++/* they don't check i_nlink in link(2) */ ++static inline int au_test_fs_no_limit_nlink(struct super_block *sb) ++{ ++ return au_test_tmpfs(sb) ++#ifdef CONFIG_AUFS_BR_RAMFS ++ || au_test_ramfs(sb) ++#endif ++ || au_test_ubifs(sb) ++ || au_test_hfsplus(sb); ++} ++ ++/* ++ * filesystems which sets S_NOATIME and S_NOCMTIME. ++ */ ++static inline int au_test_fs_notime(struct super_block *sb) ++{ ++ return au_test_nfs(sb) ++ || au_test_fuse(sb) ++ || au_test_ubifs(sb) ++ ; ++} ++ ++/* temporary support for i#1 in cramfs */ ++static inline int au_test_fs_unique_ino(struct inode *inode) ++{ ++ if (au_test_cramfs(inode->i_sb)) ++ return inode->i_ino != 1; ++ return 1; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++/* ++ * the filesystem where the xino files placed must support i/o after unlink and ++ * maintain i_size and i_blocks. ++ */ ++static inline int au_test_fs_bad_xino(struct super_block *sb) ++{ ++ return au_test_fs_remote(sb) ++ || au_test_fs_bad_iattr_size(sb) ++ /* don't want unnecessary work for xino */ ++ || au_test_aufs(sb) ++ || au_test_ecryptfs(sb) ++ || au_test_nilfs(sb); ++} ++ ++static inline int au_test_fs_trunc_xino(struct super_block *sb) ++{ ++ return au_test_tmpfs(sb) ++ || au_test_ramfs(sb); ++} ++ ++/* ++ * test if the @sb is real-readonly. ++ */ ++static inline int au_test_fs_rr(struct super_block *sb) ++{ ++ return au_test_squashfs(sb) ++ || au_test_iso9660(sb) ++ || au_test_cramfs(sb) ++ || au_test_romfs(sb); ++} ++ ++/* ++ * test if the @inode is nfs with 'noacl' option ++ * NFS always sets SB_POSIXACL regardless its mount option 'noacl.' ++ */ ++static inline int au_test_nfs_noacl(struct inode *inode) ++{ ++ return au_test_nfs(inode->i_sb) ++ /* && IS_POSIXACL(inode) */ ++ && !nfs_server_capable(inode, NFS_CAP_ACLS); ++} ++ ++#endif /* __KERNEL__ */ ++#endif /* __AUFS_FSTYPE_H__ */ +diff -Naur linux-5.15/fs/aufs/hbl.h aufs5-linux-aufs5.15/fs/aufs/hbl.h +--- linux-5.15/fs/aufs/hbl.h 1970-01-01 03:00:00.000000000 +0300 ++++ aufs5-linux-aufs5.15/fs/aufs/hbl.h 2022-03-07 13:48:09.000000000 +0300 +@@ -0,0 +1,52 @@ ++/* SPDX-License-Identifier: GPL-2.0 */ ++/* ++ * Copyright (C) 2017-2021 Junjiro R. Okajima ++ */ ++ ++/* ++ * helpers for hlist_bl.h ++ */ ++ ++#ifndef __AUFS_HBL_H__ ++#define __AUFS_HBL_H__ ++ ++#ifdef __KERNEL__ ++ ++#include ++ ++static inline void au_hbl_add(struct hlist_bl_node *node, ++ struct hlist_bl_head *hbl) ++{ ++ hlist_bl_lock(hbl); ++ hlist_bl_add_head(node, hbl); ++ hlist_bl_unlock(hbl); ++} ++ ++static inline void au_hbl_del(struct hlist_bl_node *node, ++ struct hlist_bl_head *hbl) ++{ ++ hlist_bl_lock(hbl); ++ hlist_bl_del(node); ++ hlist_bl_unlock(hbl); ++} ++ ++#define au_hbl_for_each(pos, head) \ ++ for (pos = hlist_bl_first(head); \ ++ pos; \ ++ pos = pos->next) ++ ++static inline unsigned long au_hbl_count(struct hlist_bl_head *hbl) ++{ ++ unsigned long cnt; ++ struct hlist_bl_node *pos; ++ ++ cnt = 0; ++ hlist_bl_lock(hbl); ++ au_hbl_for_each(pos, hbl) ++ cnt++; ++ hlist_bl_unlock(hbl); ++ return cnt; ++} ++ ++#endif /* __KERNEL__ */ ++#endif /* __AUFS_HBL_H__ */ +diff -Naur linux-5.15/fs/aufs/hfsnotify.c aufs5-linux-aufs5.15/fs/aufs/hfsnotify.c +--- linux-5.15/fs/aufs/hfsnotify.c 1970-01-01 03:00:00.000000000 +0300 ++++ aufs5-linux-aufs5.15/fs/aufs/hfsnotify.c 2022-03-07 13:48:09.000000000 +0300 +@@ -0,0 +1,275 @@ ++// SPDX-License-Identifier: GPL-2.0 ++/* ++ * Copyright (C) 2005-2021 Junjiro R. Okajima ++ */ ++ ++/* ++ * fsnotify for the lower directories ++ */ ++ ++#include "aufs.h" ++ ++/* FS_IN_IGNORED is unnecessary */ ++static const __u32 AuHfsnMask = (FS_MOVED_TO | FS_MOVED_FROM | FS_DELETE ++ | FS_CREATE | FS_EVENT_ON_CHILD); ++static DECLARE_WAIT_QUEUE_HEAD(au_hfsn_wq); ++static __cacheline_aligned_in_smp atomic64_t au_hfsn_ifree = ATOMIC64_INIT(0); ++ ++static void au_hfsn_free_mark(struct fsnotify_mark *mark) ++{ ++ struct au_hnotify *hn = container_of(mark, struct au_hnotify, ++ hn_mark); ++ /* AuDbg("here\n"); */ ++ au_cache_free_hnotify(hn); ++ smp_mb__before_atomic(); /* for atomic64_dec */ ++ if (atomic64_dec_and_test(&au_hfsn_ifree)) ++ wake_up(&au_hfsn_wq); ++} ++ ++static int au_hfsn_alloc(struct au_hinode *hinode) ++{ ++ int err; ++ struct au_hnotify *hn; ++ struct super_block *sb; ++ struct au_branch *br; ++ struct fsnotify_mark *mark; ++ aufs_bindex_t bindex; ++ ++ hn = hinode->hi_notify; ++ sb = hn->hn_aufs_inode->i_sb; ++ bindex = au_br_index(sb, hinode->hi_id); ++ br = au_sbr(sb, bindex); ++ AuDebugOn(!br->br_hfsn); ++ ++ mark = &hn->hn_mark; ++ fsnotify_init_mark(mark, br->br_hfsn->hfsn_group); ++ mark->mask = AuHfsnMask; ++ /* ++ * by udba rename or rmdir, aufs assign a new inode to the known ++ * h_inode, so specify 1 to allow dups. ++ */ ++ lockdep_off(); ++ err = fsnotify_add_inode_mark(mark, hinode->hi_inode, /*allow_dups*/1); ++ lockdep_on(); ++ ++ return err; ++} ++ ++static int au_hfsn_free(struct au_hinode *hinode, struct au_hnotify *hn) ++{ ++ struct fsnotify_mark *mark; ++ unsigned long long ull; ++ struct fsnotify_group *group; ++ ++ ull = atomic64_inc_return(&au_hfsn_ifree); ++ BUG_ON(!ull); ++ ++ mark = &hn->hn_mark; ++ spin_lock(&mark->lock); ++ group = mark->group; ++ fsnotify_get_group(group); ++ spin_unlock(&mark->lock); ++ lockdep_off(); ++ fsnotify_destroy_mark(mark, group); ++ fsnotify_put_mark(mark); ++ fsnotify_put_group(group); ++ lockdep_on(); ++ ++ /* free hn by myself */ ++ return 0; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++static void au_hfsn_ctl(struct au_hinode *hinode, int do_set) ++{ ++ struct fsnotify_mark *mark; ++ ++ mark = &hinode->hi_notify->hn_mark; ++ spin_lock(&mark->lock); ++ if (do_set) { ++ AuDebugOn(mark->mask & AuHfsnMask); ++ mark->mask |= AuHfsnMask; ++ } else { ++ AuDebugOn(!(mark->mask & AuHfsnMask)); ++ mark->mask &= ~AuHfsnMask; ++ } ++ spin_unlock(&mark->lock); ++ /* fsnotify_recalc_inode_mask(hinode->hi_inode); */ ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++/* #define AuDbgHnotify */ ++#ifdef AuDbgHnotify ++static char *au_hfsn_name(u32 mask) ++{ ++#ifdef CONFIG_AUFS_DEBUG ++#define test_ret(flag) \ ++ do { \ ++ if (mask & flag) \ ++ return #flag; \ ++ } while (0) ++ test_ret(FS_ACCESS); ++ test_ret(FS_MODIFY); ++ test_ret(FS_ATTRIB); ++ test_ret(FS_CLOSE_WRITE); ++ test_ret(FS_CLOSE_NOWRITE); ++ test_ret(FS_OPEN); ++ test_ret(FS_MOVED_FROM); ++ test_ret(FS_MOVED_TO); ++ test_ret(FS_CREATE); ++ test_ret(FS_DELETE); ++ test_ret(FS_DELETE_SELF); ++ test_ret(FS_MOVE_SELF); ++ test_ret(FS_UNMOUNT); ++ test_ret(FS_Q_OVERFLOW); ++ test_ret(FS_IN_IGNORED); ++ test_ret(FS_ISDIR); ++ test_ret(FS_IN_ONESHOT); ++ test_ret(FS_EVENT_ON_CHILD); ++ return ""; ++#undef test_ret ++#else ++ return "??"; ++#endif ++} ++#endif ++ ++/* ---------------------------------------------------------------------- */ ++ ++static void au_hfsn_free_group(struct fsnotify_group *group) ++{ ++ struct au_br_hfsnotify *hfsn = group->private; ++ ++ /* AuDbg("here\n"); */ ++ au_kfree_try_rcu(hfsn); ++} ++ ++static int au_hfsn_handle_event(struct fsnotify_group *group, ++ u32 mask, const void *data, int data_type, ++ struct inode *dir, ++ const struct qstr *file_name, u32 cookie, ++ struct fsnotify_iter_info *iter_info) ++{ ++ int err; ++ struct au_hnotify *hnotify; ++ struct inode *h_dir, *h_inode; ++ struct fsnotify_mark *inode_mark; ++ ++ AuDebugOn(data_type != FSNOTIFY_EVENT_INODE); ++ ++ err = 0; ++ /* if FS_UNMOUNT happens, there must be another bug */ ++ AuDebugOn(mask & FS_UNMOUNT); ++ if (mask & (FS_IN_IGNORED | FS_UNMOUNT)) ++ goto out; ++ ++ h_dir = dir; ++ h_inode = NULL; ++#ifdef AuDbgHnotify ++ au_debug_on(); ++ if (1 || h_child_qstr.len != sizeof(AUFS_XINO_FNAME) - 1 ++ || strncmp(h_child_qstr.name, AUFS_XINO_FNAME, h_child_qstr.len)) { ++ AuDbg("i%lu, mask 0x%x %s, hcname %.*s, hi%lu\n", ++ h_dir->i_ino, mask, au_hfsn_name(mask), ++ AuLNPair(&h_child_qstr), h_inode ? h_inode->i_ino : 0); ++ /* WARN_ON(1); */ ++ } ++ au_debug_off(); ++#endif ++ ++ inode_mark = fsnotify_iter_inode_mark(iter_info); ++ AuDebugOn(!inode_mark); ++ hnotify = container_of(inode_mark, struct au_hnotify, hn_mark); ++ err = au_hnotify(h_dir, hnotify, mask, file_name, h_inode); ++ ++out: ++ return err; ++} ++ ++static struct fsnotify_ops au_hfsn_ops = { ++ .handle_event = au_hfsn_handle_event, ++ .free_group_priv = au_hfsn_free_group, ++ .free_mark = au_hfsn_free_mark ++}; ++ ++/* ---------------------------------------------------------------------- */ ++ ++static void au_hfsn_fin_br(struct au_branch *br) ++{ ++ struct au_br_hfsnotify *hfsn; ++ ++ hfsn = br->br_hfsn; ++ if (hfsn) { ++ lockdep_off(); ++ fsnotify_put_group(hfsn->hfsn_group); ++ lockdep_on(); ++ } ++} ++ ++static int au_hfsn_init_br(struct au_branch *br, int perm) ++{ ++ int err; ++ struct fsnotify_group *group; ++ struct au_br_hfsnotify *hfsn; ++ ++ err = 0; ++ br->br_hfsn = NULL; ++ if (!au_br_hnotifyable(perm)) ++ goto out; ++ ++ err = -ENOMEM; ++ hfsn = kmalloc(sizeof(*hfsn), GFP_NOFS); ++ if (unlikely(!hfsn)) ++ goto out; ++ ++ err = 0; ++ group = fsnotify_alloc_group(&au_hfsn_ops); ++ if (IS_ERR(group)) { ++ err = PTR_ERR(group); ++ pr_err("fsnotify_alloc_group() failed, %d\n", err); ++ goto out_hfsn; ++ } ++ ++ group->private = hfsn; ++ hfsn->hfsn_group = group; ++ br->br_hfsn = hfsn; ++ goto out; /* success */ ++ ++out_hfsn: ++ au_kfree_try_rcu(hfsn); ++out: ++ return err; ++} ++ ++static int au_hfsn_reset_br(unsigned int udba, struct au_branch *br, int perm) ++{ ++ int err; ++ ++ err = 0; ++ if (!br->br_hfsn) ++ err = au_hfsn_init_br(br, perm); ++ ++ return err; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++static void au_hfsn_fin(void) ++{ ++ AuDbg("au_hfsn_ifree %lld\n", (long long)atomic64_read(&au_hfsn_ifree)); ++ wait_event(au_hfsn_wq, !atomic64_read(&au_hfsn_ifree)); ++} ++ ++const struct au_hnotify_op au_hnotify_op = { ++ .ctl = au_hfsn_ctl, ++ .alloc = au_hfsn_alloc, ++ .free = au_hfsn_free, ++ ++ .fin = au_hfsn_fin, ++ ++ .reset_br = au_hfsn_reset_br, ++ .fin_br = au_hfsn_fin_br, ++ .init_br = au_hfsn_init_br ++}; +diff -Naur linux-5.15/fs/aufs/hfsplus.c aufs5-linux-aufs5.15/fs/aufs/hfsplus.c +--- linux-5.15/fs/aufs/hfsplus.c 1970-01-01 03:00:00.000000000 +0300 ++++ aufs5-linux-aufs5.15/fs/aufs/hfsplus.c 2022-03-07 13:48:09.000000000 +0300 +@@ -0,0 +1,47 @@ ++// SPDX-License-Identifier: GPL-2.0 ++/* ++ * Copyright (C) 2010-2021 Junjiro R. Okajima ++ */ ++ ++/* ++ * special support for filesystems which acquires an inode mutex ++ * at final closing a file, eg, hfsplus. ++ * ++ * This trick is very simple and stupid, just to open the file before really ++ * necessary open to tell hfsplus that this is not the final closing. ++ * The caller should call au_h_open_pre() after acquiring the inode mutex, ++ * and au_h_open_post() after releasing it. ++ */ ++ ++#include "aufs.h" ++ ++struct file *au_h_open_pre(struct dentry *dentry, aufs_bindex_t bindex, ++ int force_wr) ++{ ++ struct file *h_file; ++ struct dentry *h_dentry; ++ ++ h_dentry = au_h_dptr(dentry, bindex); ++ AuDebugOn(!h_dentry); ++ AuDebugOn(d_is_negative(h_dentry)); ++ ++ h_file = NULL; ++ if (au_test_hfsplus(h_dentry->d_sb) ++ && d_is_reg(h_dentry)) ++ h_file = au_h_open(dentry, bindex, ++ O_RDONLY | O_NOATIME | O_LARGEFILE, ++ /*file*/NULL, force_wr); ++ return h_file; ++} ++ ++void au_h_open_post(struct dentry *dentry, aufs_bindex_t bindex, ++ struct file *h_file) ++{ ++ struct au_branch *br; ++ ++ if (h_file) { ++ fput(h_file); ++ br = au_sbr(dentry->d_sb, bindex); ++ au_lcnt_dec(&br->br_nfiles); ++ } ++} +diff -Naur linux-5.15/fs/aufs/hnotify.c aufs5-linux-aufs5.15/fs/aufs/hnotify.c +--- linux-5.15/fs/aufs/hnotify.c 1970-01-01 03:00:00.000000000 +0300 ++++ aufs5-linux-aufs5.15/fs/aufs/hnotify.c 2022-03-07 13:48:09.000000000 +0300 +@@ -0,0 +1,702 @@ ++// SPDX-License-Identifier: GPL-2.0 ++/* ++ * Copyright (C) 2005-2021 Junjiro R. Okajima ++ */ ++ ++/* ++ * abstraction to notify the direct changes on lower directories ++ */ ++ ++/* #include */ ++#include "aufs.h" ++ ++int au_hn_alloc(struct au_hinode *hinode, struct inode *inode) ++{ ++ int err; ++ struct au_hnotify *hn; ++ ++ err = -ENOMEM; ++ hn = au_cache_alloc_hnotify(); ++ if (hn) { ++ hn->hn_aufs_inode = inode; ++ hinode->hi_notify = hn; ++ err = au_hnotify_op.alloc(hinode); ++ AuTraceErr(err); ++ if (unlikely(err)) { ++ hinode->hi_notify = NULL; ++ au_cache_free_hnotify(hn); ++ /* ++ * The upper dir was removed by udba, but the same named ++ * dir left. In this case, aufs assigns a new inode ++ * number and set the monitor again. ++ * For the lower dir, the old monitor is still left. ++ */ ++ if (err == -EEXIST) ++ err = 0; ++ } ++ } ++ ++ AuTraceErr(err); ++ return err; ++} ++ ++void au_hn_free(struct au_hinode *hinode) ++{ ++ struct au_hnotify *hn; ++ ++ hn = hinode->hi_notify; ++ if (hn) { ++ hinode->hi_notify = NULL; ++ if (au_hnotify_op.free(hinode, hn)) ++ au_cache_free_hnotify(hn); ++ } ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++void au_hn_ctl(struct au_hinode *hinode, int do_set) ++{ ++ if (hinode->hi_notify) ++ au_hnotify_op.ctl(hinode, do_set); ++} ++ ++void au_hn_reset(struct inode *inode, unsigned int flags) ++{ ++ aufs_bindex_t bindex, bbot; ++ struct inode *hi; ++ struct dentry *iwhdentry; ++ ++ bbot = au_ibbot(inode); ++ for (bindex = au_ibtop(inode); bindex <= bbot; bindex++) { ++ hi = au_h_iptr(inode, bindex); ++ if (!hi) ++ continue; ++ ++ /* inode_lock_nested(hi, AuLsc_I_CHILD); */ ++ iwhdentry = au_hi_wh(inode, bindex); ++ if (iwhdentry) ++ dget(iwhdentry); ++ au_igrab(hi); ++ au_set_h_iptr(inode, bindex, NULL, 0); ++ au_set_h_iptr(inode, bindex, au_igrab(hi), ++ flags & ~AuHi_XINO); ++ iput(hi); ++ dput(iwhdentry); ++ /* inode_unlock(hi); */ ++ } ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++static int hn_xino(struct inode *inode, struct inode *h_inode) ++{ ++ int err; ++ aufs_bindex_t bindex, bbot, bfound, btop; ++ struct inode *h_i; ++ ++ err = 0; ++ if (unlikely(inode->i_ino == AUFS_ROOT_INO)) { ++ pr_warn("branch root dir was changed\n"); ++ goto out; ++ } ++ ++ bfound = -1; ++ bbot = au_ibbot(inode); ++ btop = au_ibtop(inode); ++#if 0 /* reserved for future use */ ++ if (bindex == bbot) { ++ /* keep this ino in rename case */ ++ goto out; ++ } ++#endif ++ for (bindex = btop; bindex <= bbot; bindex++) ++ if (au_h_iptr(inode, bindex) == h_inode) { ++ bfound = bindex; ++ break; ++ } ++ if (bfound < 0) ++ goto out; ++ ++ for (bindex = btop; bindex <= bbot; bindex++) { ++ h_i = au_h_iptr(inode, bindex); ++ if (!h_i) ++ continue; ++ ++ err = au_xino_write(inode->i_sb, bindex, h_i->i_ino, /*ino*/0); ++ /* ignore this error */ ++ /* bad action? */ ++ } ++ ++ /* children inode number will be broken */ ++ ++out: ++ AuTraceErr(err); ++ return err; ++} ++ ++static int hn_gen_tree(struct dentry *dentry) ++{ ++ int err, i, j, ndentry; ++ struct au_dcsub_pages dpages; ++ struct au_dpage *dpage; ++ struct dentry **dentries; ++ ++ err = au_dpages_init(&dpages, GFP_NOFS); ++ if (unlikely(err)) ++ goto out; ++ err = au_dcsub_pages(&dpages, dentry, NULL, NULL); ++ if (unlikely(err)) ++ goto out_dpages; ++ ++ for (i = 0; i < dpages.ndpage; i++) { ++ dpage = dpages.dpages + i; ++ dentries = dpage->dentries; ++ ndentry = dpage->ndentry; ++ for (j = 0; j < ndentry; j++) { ++ struct dentry *d; ++ ++ d = dentries[j]; ++ if (IS_ROOT(d)) ++ continue; ++ ++ au_digen_dec(d); ++ if (d_really_is_positive(d)) ++ /* todo: reset children xino? ++ cached children only? */ ++ au_iigen_dec(d_inode(d)); ++ } ++ } ++ ++out_dpages: ++ au_dpages_free(&dpages); ++out: ++ return err; ++} ++ ++/* ++ * return 0 if processed. ++ */ ++static int hn_gen_by_inode(char *name, unsigned int nlen, struct inode *inode, ++ const unsigned int isdir) ++{ ++ int err; ++ struct dentry *d; ++ struct qstr *dname; ++ ++ err = 1; ++ if (unlikely(inode->i_ino == AUFS_ROOT_INO)) { ++ pr_warn("branch root dir was changed\n"); ++ err = 0; ++ goto out; ++ } ++ ++ if (!isdir) { ++ AuDebugOn(!name); ++ au_iigen_dec(inode); ++ spin_lock(&inode->i_lock); ++ hlist_for_each_entry(d, &inode->i_dentry, d_u.d_alias) { ++ spin_lock(&d->d_lock); ++ dname = &d->d_name; ++ if (dname->len != nlen ++ && memcmp(dname->name, name, nlen)) { ++ spin_unlock(&d->d_lock); ++ continue; ++ } ++ err = 0; ++ au_digen_dec(d); ++ spin_unlock(&d->d_lock); ++ break; ++ } ++ spin_unlock(&inode->i_lock); ++ } else { ++ au_fset_si(au_sbi(inode->i_sb), FAILED_REFRESH_DIR); ++ d = d_find_any_alias(inode); ++ if (!d) { ++ au_iigen_dec(inode); ++ goto out; ++ } ++ ++ spin_lock(&d->d_lock); ++ dname = &d->d_name; ++ if (dname->len == nlen && !memcmp(dname->name, name, nlen)) { ++ spin_unlock(&d->d_lock); ++ err = hn_gen_tree(d); ++ spin_lock(&d->d_lock); ++ } ++ spin_unlock(&d->d_lock); ++ dput(d); ++ } ++ ++out: ++ AuTraceErr(err); ++ return err; ++} ++ ++static int hn_gen_by_name(struct dentry *dentry, const unsigned int isdir) ++{ ++ int err; ++ ++ if (IS_ROOT(dentry)) { ++ pr_warn("branch root dir was changed\n"); ++ return 0; ++ } ++ ++ err = 0; ++ if (!isdir) { ++ au_digen_dec(dentry); ++ if (d_really_is_positive(dentry)) ++ au_iigen_dec(d_inode(dentry)); ++ } else { ++ au_fset_si(au_sbi(dentry->d_sb), FAILED_REFRESH_DIR); ++ if (d_really_is_positive(dentry)) ++ err = hn_gen_tree(dentry); ++ } ++ ++ AuTraceErr(err); ++ return err; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++/* hnotify job flags */ ++#define AuHnJob_XINO0 1 ++#define AuHnJob_GEN (1 << 1) ++#define AuHnJob_DIRENT (1 << 2) ++#define AuHnJob_ISDIR (1 << 3) ++#define AuHnJob_TRYXINO0 (1 << 4) ++#define AuHnJob_MNTPNT (1 << 5) ++#define au_ftest_hnjob(flags, name) ((flags) & AuHnJob_##name) ++#define au_fset_hnjob(flags, name) \ ++ do { (flags) |= AuHnJob_##name; } while (0) ++#define au_fclr_hnjob(flags, name) \ ++ do { (flags) &= ~AuHnJob_##name; } while (0) ++ ++enum { ++ AuHn_CHILD, ++ AuHn_PARENT, ++ AuHnLast ++}; ++ ++struct au_hnotify_args { ++ struct inode *h_dir, *dir, *h_child_inode; ++ u32 mask; ++ unsigned int flags[AuHnLast]; ++ unsigned int h_child_nlen; ++ char h_child_name[]; ++}; ++ ++struct hn_job_args { ++ unsigned int flags; ++ struct inode *inode, *h_inode, *dir, *h_dir; ++ struct dentry *dentry; ++ char *h_name; ++ int h_nlen; ++}; ++ ++static int hn_job(struct hn_job_args *a) ++{ ++ const unsigned int isdir = au_ftest_hnjob(a->flags, ISDIR); ++ int e; ++ ++ /* reset xino */ ++ if (au_ftest_hnjob(a->flags, XINO0) && a->inode) ++ hn_xino(a->inode, a->h_inode); /* ignore this error */ ++ ++ if (au_ftest_hnjob(a->flags, TRYXINO0) ++ && a->inode ++ && a->h_inode) { ++ inode_lock_shared_nested(a->h_inode, AuLsc_I_CHILD); ++ if (!a->h_inode->i_nlink ++ && !(a->h_inode->i_state & I_LINKABLE)) ++ hn_xino(a->inode, a->h_inode); /* ignore this error */ ++ inode_unlock_shared(a->h_inode); ++ } ++ ++ /* make the generation obsolete */ ++ if (au_ftest_hnjob(a->flags, GEN)) { ++ e = -1; ++ if (a->inode) ++ e = hn_gen_by_inode(a->h_name, a->h_nlen, a->inode, ++ isdir); ++ if (e && a->dentry) ++ hn_gen_by_name(a->dentry, isdir); ++ /* ignore this error */ ++ } ++ ++ /* make dir entries obsolete */ ++ if (au_ftest_hnjob(a->flags, DIRENT) && a->inode) { ++ struct au_vdir *vdir; ++ ++ vdir = au_ivdir(a->inode); ++ if (vdir) ++ vdir->vd_jiffy = 0; ++ /* IMustLock(a->inode); */ ++ /* inode_inc_iversion(a->inode); */ ++ } ++ ++ /* can do nothing but warn */ ++ if (au_ftest_hnjob(a->flags, MNTPNT) ++ && a->dentry ++ && d_mountpoint(a->dentry)) ++ pr_warn("mount-point %pd is removed or renamed\n", a->dentry); ++ ++ return 0; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++static struct dentry *lookup_wlock_by_name(char *name, unsigned int nlen, ++ struct inode *dir) ++{ ++ struct dentry *dentry, *d, *parent; ++ struct qstr *dname; ++ ++ parent = d_find_any_alias(dir); ++ if (!parent) ++ return NULL; ++ ++ dentry = NULL; ++ spin_lock(&parent->d_lock); ++ list_for_each_entry(d, &parent->d_subdirs, d_child) { ++ /* AuDbg("%pd\n", d); */ ++ spin_lock_nested(&d->d_lock, DENTRY_D_LOCK_NESTED); ++ dname = &d->d_name; ++ if (dname->len != nlen || memcmp(dname->name, name, nlen)) ++ goto cont_unlock; ++ if (au_di(d)) ++ au_digen_dec(d); ++ else ++ goto cont_unlock; ++ if (au_dcount(d) > 0) { ++ dentry = dget_dlock(d); ++ spin_unlock(&d->d_lock); ++ break; ++ } ++ ++cont_unlock: ++ spin_unlock(&d->d_lock); ++ } ++ spin_unlock(&parent->d_lock); ++ dput(parent); ++ ++ if (dentry) ++ di_write_lock_child(dentry); ++ ++ return dentry; ++} ++ ++static struct inode *lookup_wlock_by_ino(struct super_block *sb, ++ aufs_bindex_t bindex, ino_t h_ino) ++{ ++ struct inode *inode; ++ ino_t ino; ++ int err; ++ ++ inode = NULL; ++ err = au_xino_read(sb, bindex, h_ino, &ino); ++ if (!err && ino) ++ inode = ilookup(sb, ino); ++ if (!inode) ++ goto out; ++ ++ if (unlikely(inode->i_ino == AUFS_ROOT_INO)) { ++ pr_warn("wrong root branch\n"); ++ iput(inode); ++ inode = NULL; ++ goto out; ++ } ++ ++ ii_write_lock_child(inode); ++ ++out: ++ return inode; ++} ++ ++static void au_hn_bh(void *_args) ++{ ++ struct au_hnotify_args *a = _args; ++ struct super_block *sb; ++ aufs_bindex_t bindex, bbot, bfound; ++ unsigned char xino, try_iput; ++ int err; ++ struct inode *inode; ++ ino_t h_ino; ++ struct hn_job_args args; ++ struct dentry *dentry; ++ struct au_sbinfo *sbinfo; ++ ++ AuDebugOn(!_args); ++ AuDebugOn(!a->h_dir); ++ AuDebugOn(!a->dir); ++ AuDebugOn(!a->mask); ++ AuDbg("mask 0x%x, i%lu, hi%lu, hci%lu\n", ++ a->mask, a->dir->i_ino, a->h_dir->i_ino, ++ a->h_child_inode ? a->h_child_inode->i_ino : 0); ++ ++ inode = NULL; ++ dentry = NULL; ++ /* ++ * do not lock a->dir->i_mutex here ++ * because of d_revalidate() may cause a deadlock. ++ */ ++ sb = a->dir->i_sb; ++ AuDebugOn(!sb); ++ sbinfo = au_sbi(sb); ++ AuDebugOn(!sbinfo); ++ si_write_lock(sb, AuLock_NOPLMW); ++ ++ if (au_opt_test(sbinfo->si_mntflags, DIRREN)) ++ switch (a->mask & FS_EVENTS_POSS_ON_CHILD) { ++ case FS_MOVED_FROM: ++ case FS_MOVED_TO: ++ AuWarn1("DIRREN with UDBA may not work correctly " ++ "for the direct rename(2)\n"); ++ } ++ ++ ii_read_lock_parent(a->dir); ++ bfound = -1; ++ bbot = au_ibbot(a->dir); ++ for (bindex = au_ibtop(a->dir); bindex <= bbot; bindex++) ++ if (au_h_iptr(a->dir, bindex) == a->h_dir) { ++ bfound = bindex; ++ break; ++ } ++ ii_read_unlock(a->dir); ++ if (unlikely(bfound < 0)) ++ goto out; ++ ++ xino = !!au_opt_test(au_mntflags(sb), XINO); ++ h_ino = 0; ++ if (a->h_child_inode) ++ h_ino = a->h_child_inode->i_ino; ++ ++ if (a->h_child_nlen ++ && (au_ftest_hnjob(a->flags[AuHn_CHILD], GEN) ++ || au_ftest_hnjob(a->flags[AuHn_CHILD], MNTPNT))) ++ dentry = lookup_wlock_by_name(a->h_child_name, a->h_child_nlen, ++ a->dir); ++ try_iput = 0; ++ if (dentry && d_really_is_positive(dentry)) ++ inode = d_inode(dentry); ++ if (xino && !inode && h_ino ++ && (au_ftest_hnjob(a->flags[AuHn_CHILD], XINO0) ++ || au_ftest_hnjob(a->flags[AuHn_CHILD], TRYXINO0) ++ || au_ftest_hnjob(a->flags[AuHn_CHILD], GEN))) { ++ inode = lookup_wlock_by_ino(sb, bfound, h_ino); ++ try_iput = 1; ++ } ++ ++ args.flags = a->flags[AuHn_CHILD]; ++ args.dentry = dentry; ++ args.inode = inode; ++ args.h_inode = a->h_child_inode; ++ args.dir = a->dir; ++ args.h_dir = a->h_dir; ++ args.h_name = a->h_child_name; ++ args.h_nlen = a->h_child_nlen; ++ err = hn_job(&args); ++ if (dentry) { ++ if (au_di(dentry)) ++ di_write_unlock(dentry); ++ dput(dentry); ++ } ++ if (inode && try_iput) { ++ ii_write_unlock(inode); ++ iput(inode); ++ } ++ ++ ii_write_lock_parent(a->dir); ++ args.flags = a->flags[AuHn_PARENT]; ++ args.dentry = NULL; ++ args.inode = a->dir; ++ args.h_inode = a->h_dir; ++ args.dir = NULL; ++ args.h_dir = NULL; ++ args.h_name = NULL; ++ args.h_nlen = 0; ++ err = hn_job(&args); ++ ii_write_unlock(a->dir); ++ ++out: ++ iput(a->h_child_inode); ++ iput(a->h_dir); ++ iput(a->dir); ++ si_write_unlock(sb); ++ au_nwt_done(&sbinfo->si_nowait); ++ au_kfree_rcu(a); ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++int au_hnotify(struct inode *h_dir, struct au_hnotify *hnotify, u32 mask, ++ const struct qstr *h_child_qstr, struct inode *h_child_inode) ++{ ++ int err, len; ++ unsigned int flags[AuHnLast], f; ++ unsigned char isdir, isroot, wh; ++ struct inode *dir; ++ struct au_hnotify_args *args; ++ char *p, *h_child_name; ++ ++ err = 0; ++ AuDebugOn(!hnotify || !hnotify->hn_aufs_inode); ++ dir = igrab(hnotify->hn_aufs_inode); ++ if (!dir) ++ goto out; ++ ++ isroot = (dir->i_ino == AUFS_ROOT_INO); ++ wh = 0; ++ h_child_name = (void *)h_child_qstr->name; ++ len = h_child_qstr->len; ++ if (h_child_name) { ++ if (len > AUFS_WH_PFX_LEN ++ && !memcmp(h_child_name, AUFS_WH_PFX, AUFS_WH_PFX_LEN)) { ++ h_child_name += AUFS_WH_PFX_LEN; ++ len -= AUFS_WH_PFX_LEN; ++ wh = 1; ++ } ++ } ++ ++ isdir = 0; ++ if (h_child_inode) ++ isdir = !!S_ISDIR(h_child_inode->i_mode); ++ flags[AuHn_PARENT] = AuHnJob_ISDIR; ++ flags[AuHn_CHILD] = 0; ++ if (isdir) ++ flags[AuHn_CHILD] = AuHnJob_ISDIR; ++ au_fset_hnjob(flags[AuHn_PARENT], DIRENT); ++ au_fset_hnjob(flags[AuHn_CHILD], GEN); ++ switch (mask & ALL_FSNOTIFY_DIRENT_EVENTS) { ++ case FS_MOVED_FROM: ++ case FS_MOVED_TO: ++ au_fset_hnjob(flags[AuHn_CHILD], XINO0); ++ au_fset_hnjob(flags[AuHn_CHILD], MNTPNT); ++ fallthrough; ++ case FS_CREATE: ++ AuDebugOn(!h_child_name); ++ break; ++ ++ case FS_DELETE: ++ /* ++ * aufs never be able to get this child inode. ++ * revalidation should be in d_revalidate() ++ * by checking i_nlink, i_generation or d_unhashed(). ++ */ ++ AuDebugOn(!h_child_name); ++ au_fset_hnjob(flags[AuHn_CHILD], TRYXINO0); ++ au_fset_hnjob(flags[AuHn_CHILD], MNTPNT); ++ break; ++ ++ default: ++ AuDebugOn(1); ++ } ++ ++ if (wh) ++ h_child_inode = NULL; ++ ++ err = -ENOMEM; ++ /* iput() and kfree() will be called in au_hnotify() */ ++ args = kmalloc(sizeof(*args) + len + 1, GFP_NOFS); ++ if (unlikely(!args)) { ++ AuErr1("no memory\n"); ++ iput(dir); ++ goto out; ++ } ++ args->flags[AuHn_PARENT] = flags[AuHn_PARENT]; ++ args->flags[AuHn_CHILD] = flags[AuHn_CHILD]; ++ args->mask = mask; ++ args->dir = dir; ++ args->h_dir = igrab(h_dir); ++ if (h_child_inode) ++ h_child_inode = igrab(h_child_inode); /* can be NULL */ ++ args->h_child_inode = h_child_inode; ++ args->h_child_nlen = len; ++ if (len) { ++ p = (void *)args; ++ p += sizeof(*args); ++ memcpy(p, h_child_name, len); ++ p[len] = 0; ++ } ++ ++ /* NFS fires the event for silly-renamed one from kworker */ ++ f = 0; ++ if (!dir->i_nlink ++ || (au_test_nfs(h_dir->i_sb) && (mask & FS_DELETE))) ++ f = AuWkq_NEST; ++ err = au_wkq_nowait(au_hn_bh, args, dir->i_sb, f); ++ if (unlikely(err)) { ++ pr_err("wkq %d\n", err); ++ iput(args->h_child_inode); ++ iput(args->h_dir); ++ iput(args->dir); ++ au_kfree_rcu(args); ++ } ++ ++out: ++ return err; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++int au_hnotify_reset_br(unsigned int udba, struct au_branch *br, int perm) ++{ ++ int err; ++ ++ AuDebugOn(!(udba & AuOptMask_UDBA)); ++ ++ err = 0; ++ if (au_hnotify_op.reset_br) ++ err = au_hnotify_op.reset_br(udba, br, perm); ++ ++ return err; ++} ++ ++int au_hnotify_init_br(struct au_branch *br, int perm) ++{ ++ int err; ++ ++ err = 0; ++ if (au_hnotify_op.init_br) ++ err = au_hnotify_op.init_br(br, perm); ++ ++ return err; ++} ++ ++void au_hnotify_fin_br(struct au_branch *br) ++{ ++ if (au_hnotify_op.fin_br) ++ au_hnotify_op.fin_br(br); ++} ++ ++static void au_hn_destroy_cache(void) ++{ ++ kmem_cache_destroy(au_cache[AuCache_HNOTIFY]); ++ au_cache[AuCache_HNOTIFY] = NULL; ++} ++ ++int __init au_hnotify_init(void) ++{ ++ int err; ++ ++ err = -ENOMEM; ++ au_cache[AuCache_HNOTIFY] = AuCache(au_hnotify); ++ if (au_cache[AuCache_HNOTIFY]) { ++ err = 0; ++ if (au_hnotify_op.init) ++ err = au_hnotify_op.init(); ++ if (unlikely(err)) ++ au_hn_destroy_cache(); ++ } ++ AuTraceErr(err); ++ return err; ++} ++ ++void au_hnotify_fin(void) ++{ ++ if (au_hnotify_op.fin) ++ au_hnotify_op.fin(); ++ ++ /* cf. au_cache_fin() */ ++ if (au_cache[AuCache_HNOTIFY]) ++ au_hn_destroy_cache(); ++} +diff -Naur linux-5.15/fs/aufs/iinfo.c aufs5-linux-aufs5.15/fs/aufs/iinfo.c +--- linux-5.15/fs/aufs/iinfo.c 1970-01-01 03:00:00.000000000 +0300 ++++ aufs5-linux-aufs5.15/fs/aufs/iinfo.c 2022-03-07 13:48:09.000000000 +0300 +@@ -0,0 +1,273 @@ ++// SPDX-License-Identifier: GPL-2.0 ++/* ++ * Copyright (C) 2005-2021 Junjiro R. Okajima ++ */ ++ ++/* ++ * inode private data ++ */ ++ ++#include "aufs.h" ++ ++struct inode *au_h_iptr(struct inode *inode, aufs_bindex_t bindex) ++{ ++ struct inode *h_inode; ++ struct au_hinode *hinode; ++ ++ IiMustAnyLock(inode); ++ ++ hinode = au_hinode(au_ii(inode), bindex); ++ h_inode = hinode->hi_inode; ++ AuDebugOn(h_inode && atomic_read(&h_inode->i_count) <= 0); ++ return h_inode; ++} ++ ++/* todo: hard/soft set? */ ++void au_hiput(struct au_hinode *hinode) ++{ ++ au_hn_free(hinode); ++ dput(hinode->hi_whdentry); ++ iput(hinode->hi_inode); ++} ++ ++unsigned int au_hi_flags(struct inode *inode, int isdir) ++{ ++ unsigned int flags; ++ const unsigned int mnt_flags = au_mntflags(inode->i_sb); ++ ++ flags = 0; ++ if (au_opt_test(mnt_flags, XINO)) ++ au_fset_hi(flags, XINO); ++ if (isdir && au_opt_test(mnt_flags, UDBA_HNOTIFY)) ++ au_fset_hi(flags, HNOTIFY); ++ return flags; ++} ++ ++void au_set_h_iptr(struct inode *inode, aufs_bindex_t bindex, ++ struct inode *h_inode, unsigned int flags) ++{ ++ struct au_hinode *hinode; ++ struct inode *hi; ++ struct au_iinfo *iinfo = au_ii(inode); ++ ++ IiMustWriteLock(inode); ++ ++ hinode = au_hinode(iinfo, bindex); ++ hi = hinode->hi_inode; ++ AuDebugOn(h_inode && atomic_read(&h_inode->i_count) <= 0); ++ ++ if (hi) ++ au_hiput(hinode); ++ hinode->hi_inode = h_inode; ++ if (h_inode) { ++ int err; ++ struct super_block *sb = inode->i_sb; ++ struct au_branch *br; ++ ++ AuDebugOn(inode->i_mode ++ && (h_inode->i_mode & S_IFMT) ++ != (inode->i_mode & S_IFMT)); ++ if (bindex == iinfo->ii_btop) ++ au_cpup_igen(inode, h_inode); ++ br = au_sbr(sb, bindex); ++ hinode->hi_id = br->br_id; ++ if (au_ftest_hi(flags, XINO)) { ++ err = au_xino_write(sb, bindex, h_inode->i_ino, ++ inode->i_ino); ++ if (unlikely(err)) ++ AuIOErr1("failed au_xino_write() %d\n", err); ++ } ++ ++ if (au_ftest_hi(flags, HNOTIFY) ++ && au_br_hnotifyable(br->br_perm)) { ++ err = au_hn_alloc(hinode, inode); ++ if (unlikely(err)) ++ AuIOErr1("au_hn_alloc() %d\n", err); ++ } ++ } ++} ++ ++void au_set_hi_wh(struct inode *inode, aufs_bindex_t bindex, ++ struct dentry *h_wh) ++{ ++ struct au_hinode *hinode; ++ ++ IiMustWriteLock(inode); ++ ++ hinode = au_hinode(au_ii(inode), bindex); ++ AuDebugOn(hinode->hi_whdentry); ++ hinode->hi_whdentry = h_wh; ++} ++ ++void au_update_iigen(struct inode *inode, int half) ++{ ++ struct au_iinfo *iinfo; ++ struct au_iigen *iigen; ++ unsigned int sigen; ++ ++ sigen = au_sigen(inode->i_sb); ++ iinfo = au_ii(inode); ++ iigen = &iinfo->ii_generation; ++ spin_lock(&iigen->ig_spin); ++ iigen->ig_generation = sigen; ++ if (half) ++ au_ig_fset(iigen->ig_flags, HALF_REFRESHED); ++ else ++ au_ig_fclr(iigen->ig_flags, HALF_REFRESHED); ++ spin_unlock(&iigen->ig_spin); ++} ++ ++/* it may be called at remount time, too */ ++void au_update_ibrange(struct inode *inode, int do_put_zero) ++{ ++ struct au_iinfo *iinfo; ++ aufs_bindex_t bindex, bbot; ++ ++ AuDebugOn(au_is_bad_inode(inode)); ++ IiMustWriteLock(inode); ++ ++ iinfo = au_ii(inode); ++ if (do_put_zero && iinfo->ii_btop >= 0) { ++ for (bindex = iinfo->ii_btop; bindex <= iinfo->ii_bbot; ++ bindex++) { ++ struct inode *h_i; ++ ++ h_i = au_hinode(iinfo, bindex)->hi_inode; ++ if (h_i ++ && !h_i->i_nlink ++ && !(h_i->i_state & I_LINKABLE)) ++ au_set_h_iptr(inode, bindex, NULL, 0); ++ } ++ } ++ ++ iinfo->ii_btop = -1; ++ iinfo->ii_bbot = -1; ++ bbot = au_sbbot(inode->i_sb); ++ for (bindex = 0; bindex <= bbot; bindex++) ++ if (au_hinode(iinfo, bindex)->hi_inode) { ++ iinfo->ii_btop = bindex; ++ break; ++ } ++ if (iinfo->ii_btop >= 0) ++ for (bindex = bbot; bindex >= iinfo->ii_btop; bindex--) ++ if (au_hinode(iinfo, bindex)->hi_inode) { ++ iinfo->ii_bbot = bindex; ++ break; ++ } ++ AuDebugOn(iinfo->ii_btop > iinfo->ii_bbot); ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++void au_icntnr_init_once(void *_c) ++{ ++ struct au_icntnr *c = _c; ++ struct au_iinfo *iinfo = &c->iinfo; ++ ++ spin_lock_init(&iinfo->ii_generation.ig_spin); ++ au_rw_init(&iinfo->ii_rwsem); ++ inode_init_once(&c->vfs_inode); ++} ++ ++void au_hinode_init(struct au_hinode *hinode) ++{ ++ hinode->hi_inode = NULL; ++ hinode->hi_id = -1; ++ au_hn_init(hinode); ++ hinode->hi_whdentry = NULL; ++} ++ ++int au_iinfo_init(struct inode *inode) ++{ ++ struct au_iinfo *iinfo; ++ struct super_block *sb; ++ struct au_hinode *hi; ++ int nbr, i; ++ ++ sb = inode->i_sb; ++ iinfo = &(container_of(inode, struct au_icntnr, vfs_inode)->iinfo); ++ nbr = au_sbbot(sb) + 1; ++ if (unlikely(nbr <= 0)) ++ nbr = 1; ++ hi = kmalloc_array(nbr, sizeof(*iinfo->ii_hinode), GFP_NOFS); ++ if (hi) { ++ au_lcnt_inc(&au_sbi(sb)->si_ninodes); ++ ++ iinfo->ii_hinode = hi; ++ for (i = 0; i < nbr; i++, hi++) ++ au_hinode_init(hi); ++ ++ iinfo->ii_generation.ig_generation = au_sigen(sb); ++ iinfo->ii_btop = -1; ++ iinfo->ii_bbot = -1; ++ iinfo->ii_vdir = NULL; ++ return 0; ++ } ++ return -ENOMEM; ++} ++ ++int au_hinode_realloc(struct au_iinfo *iinfo, int nbr, int may_shrink) ++{ ++ int err, i; ++ struct au_hinode *hip; ++ ++ AuRwMustWriteLock(&iinfo->ii_rwsem); ++ ++ err = -ENOMEM; ++ hip = au_krealloc(iinfo->ii_hinode, sizeof(*hip) * nbr, GFP_NOFS, ++ may_shrink); ++ if (hip) { ++ iinfo->ii_hinode = hip; ++ i = iinfo->ii_bbot + 1; ++ hip += i; ++ for (; i < nbr; i++, hip++) ++ au_hinode_init(hip); ++ err = 0; ++ } ++ ++ return err; ++} ++ ++void au_iinfo_fin(struct inode *inode) ++{ ++ struct au_iinfo *iinfo; ++ struct au_hinode *hi; ++ struct super_block *sb; ++ aufs_bindex_t bindex, bbot; ++ const unsigned char unlinked = !inode->i_nlink; ++ ++ AuDebugOn(au_is_bad_inode(inode)); ++ ++ sb = inode->i_sb; ++ au_lcnt_dec(&au_sbi(sb)->si_ninodes); ++ if (si_pid_test(sb)) ++ au_xino_delete_inode(inode, unlinked); ++ else { ++ /* ++ * it is safe to hide the dependency between sbinfo and ++ * sb->s_umount. ++ */ ++ lockdep_off(); ++ si_noflush_read_lock(sb); ++ au_xino_delete_inode(inode, unlinked); ++ si_read_unlock(sb); ++ lockdep_on(); ++ } ++ ++ iinfo = au_ii(inode); ++ if (iinfo->ii_vdir) ++ au_vdir_free(iinfo->ii_vdir); ++ ++ bindex = iinfo->ii_btop; ++ if (bindex >= 0) { ++ hi = au_hinode(iinfo, bindex); ++ bbot = iinfo->ii_bbot; ++ while (bindex++ <= bbot) { ++ if (hi->hi_inode) ++ au_hiput(hi); ++ hi++; ++ } ++ } ++ au_kfree_rcu(iinfo->ii_hinode); ++ AuRwDestroy(&iinfo->ii_rwsem); ++} +diff -Naur linux-5.15/fs/aufs/inode.c aufs5-linux-aufs5.15/fs/aufs/inode.c +--- linux-5.15/fs/aufs/inode.c 1970-01-01 03:00:00.000000000 +0300 ++++ aufs5-linux-aufs5.15/fs/aufs/inode.c 2022-03-07 13:48:09.000000000 +0300 +@@ -0,0 +1,518 @@ ++// SPDX-License-Identifier: GPL-2.0 ++/* ++ * Copyright (C) 2005-2021 Junjiro R. Okajima ++ */ ++ ++/* ++ * inode functions ++ */ ++ ++#include ++#include "aufs.h" ++ ++struct inode *au_igrab(struct inode *inode) ++{ ++ if (inode) { ++ AuDebugOn(!atomic_read(&inode->i_count)); ++ ihold(inode); ++ } ++ return inode; ++} ++ ++static void au_refresh_hinode_attr(struct inode *inode, int do_version) ++{ ++ au_cpup_attr_all(inode, /*force*/0); ++ au_update_iigen(inode, /*half*/1); ++ if (do_version) ++ inode_inc_iversion(inode); ++} ++ ++static int au_ii_refresh(struct inode *inode, int *update) ++{ ++ int err, e, nbr; ++ umode_t type; ++ aufs_bindex_t bindex, new_bindex; ++ struct super_block *sb; ++ struct au_iinfo *iinfo; ++ struct au_hinode *p, *q, tmp; ++ ++ AuDebugOn(au_is_bad_inode(inode)); ++ IiMustWriteLock(inode); ++ ++ *update = 0; ++ sb = inode->i_sb; ++ nbr = au_sbbot(sb) + 1; ++ type = inode->i_mode & S_IFMT; ++ iinfo = au_ii(inode); ++ err = au_hinode_realloc(iinfo, nbr, /*may_shrink*/0); ++ if (unlikely(err)) ++ goto out; ++ ++ AuDebugOn(iinfo->ii_btop < 0); ++ p = au_hinode(iinfo, iinfo->ii_btop); ++ for (bindex = iinfo->ii_btop; bindex <= iinfo->ii_bbot; ++ bindex++, p++) { ++ if (!p->hi_inode) ++ continue; ++ ++ AuDebugOn(type != (p->hi_inode->i_mode & S_IFMT)); ++ new_bindex = au_br_index(sb, p->hi_id); ++ if (new_bindex == bindex) ++ continue; ++ ++ if (new_bindex < 0) { ++ *update = 1; ++ au_hiput(p); ++ p->hi_inode = NULL; ++ continue; ++ } ++ ++ if (new_bindex < iinfo->ii_btop) ++ iinfo->ii_btop = new_bindex; ++ if (iinfo->ii_bbot < new_bindex) ++ iinfo->ii_bbot = new_bindex; ++ /* swap two lower inode, and loop again */ ++ q = au_hinode(iinfo, new_bindex); ++ tmp = *q; ++ *q = *p; ++ *p = tmp; ++ if (tmp.hi_inode) { ++ bindex--; ++ p--; ++ } ++ } ++ au_update_ibrange(inode, /*do_put_zero*/0); ++ au_hinode_realloc(iinfo, nbr, /*may_shrink*/1); /* harmless if err */ ++ e = au_dy_irefresh(inode); ++ if (unlikely(e && !err)) ++ err = e; ++ ++out: ++ AuTraceErr(err); ++ return err; ++} ++ ++void au_refresh_iop(struct inode *inode, int force_getattr) ++{ ++ int type; ++ struct au_sbinfo *sbi = au_sbi(inode->i_sb); ++ const struct inode_operations *iop ++ = force_getattr ? aufs_iop : sbi->si_iop_array; ++ ++ if (inode->i_op == iop) ++ return; ++ ++ switch (inode->i_mode & S_IFMT) { ++ case S_IFDIR: ++ type = AuIop_DIR; ++ break; ++ case S_IFLNK: ++ type = AuIop_SYMLINK; ++ break; ++ default: ++ type = AuIop_OTHER; ++ break; ++ } ++ ++ inode->i_op = iop + type; ++ /* unnecessary smp_wmb() */ ++} ++ ++int au_refresh_hinode_self(struct inode *inode) ++{ ++ int err, update; ++ ++ err = au_ii_refresh(inode, &update); ++ if (!err) ++ au_refresh_hinode_attr(inode, update && S_ISDIR(inode->i_mode)); ++ ++ AuTraceErr(err); ++ return err; ++} ++ ++int au_refresh_hinode(struct inode *inode, struct dentry *dentry) ++{ ++ int err, e, update; ++ unsigned int flags; ++ umode_t mode; ++ aufs_bindex_t bindex, bbot; ++ unsigned char isdir; ++ struct au_hinode *p; ++ struct au_iinfo *iinfo; ++ ++ err = au_ii_refresh(inode, &update); ++ if (unlikely(err)) ++ goto out; ++ ++ update = 0; ++ iinfo = au_ii(inode); ++ p = au_hinode(iinfo, iinfo->ii_btop); ++ mode = (inode->i_mode & S_IFMT); ++ isdir = S_ISDIR(mode); ++ flags = au_hi_flags(inode, isdir); ++ bbot = au_dbbot(dentry); ++ for (bindex = au_dbtop(dentry); bindex <= bbot; bindex++) { ++ struct inode *h_i, *h_inode; ++ struct dentry *h_d; ++ ++ h_d = au_h_dptr(dentry, bindex); ++ if (!h_d || d_is_negative(h_d)) ++ continue; ++ ++ h_inode = d_inode(h_d); ++ AuDebugOn(mode != (h_inode->i_mode & S_IFMT)); ++ if (iinfo->ii_btop <= bindex && bindex <= iinfo->ii_bbot) { ++ h_i = au_h_iptr(inode, bindex); ++ if (h_i) { ++ if (h_i == h_inode) ++ continue; ++ err = -EIO; ++ break; ++ } ++ } ++ if (bindex < iinfo->ii_btop) ++ iinfo->ii_btop = bindex; ++ if (iinfo->ii_bbot < bindex) ++ iinfo->ii_bbot = bindex; ++ au_set_h_iptr(inode, bindex, au_igrab(h_inode), flags); ++ update = 1; ++ } ++ au_update_ibrange(inode, /*do_put_zero*/0); ++ e = au_dy_irefresh(inode); ++ if (unlikely(e && !err)) ++ err = e; ++ if (!err) ++ au_refresh_hinode_attr(inode, update && isdir); ++ ++out: ++ AuTraceErr(err); ++ return err; ++} ++ ++static int set_inode(struct inode *inode, struct dentry *dentry) ++{ ++ int err; ++ unsigned int flags; ++ umode_t mode; ++ aufs_bindex_t bindex, btop, btail; ++ unsigned char isdir; ++ struct dentry *h_dentry; ++ struct inode *h_inode; ++ struct au_iinfo *iinfo; ++ const struct inode_operations *iop; ++ ++ IiMustWriteLock(inode); ++ ++ err = 0; ++ isdir = 0; ++ iop = au_sbi(inode->i_sb)->si_iop_array; ++ btop = au_dbtop(dentry); ++ h_dentry = au_h_dptr(dentry, btop); ++ h_inode = d_inode(h_dentry); ++ mode = h_inode->i_mode; ++ switch (mode & S_IFMT) { ++ case S_IFREG: ++ btail = au_dbtail(dentry); ++ inode->i_op = iop + AuIop_OTHER; ++ inode->i_fop = &aufs_file_fop; ++ err = au_dy_iaop(inode, btop, h_inode); ++ if (unlikely(err)) ++ goto out; ++ break; ++ case S_IFDIR: ++ isdir = 1; ++ btail = au_dbtaildir(dentry); ++ inode->i_op = iop + AuIop_DIR; ++ inode->i_fop = &aufs_dir_fop; ++ break; ++ case S_IFLNK: ++ btail = au_dbtail(dentry); ++ inode->i_op = iop + AuIop_SYMLINK; ++ break; ++ case S_IFBLK: ++ case S_IFCHR: ++ case S_IFIFO: ++ case S_IFSOCK: ++ btail = au_dbtail(dentry); ++ inode->i_op = iop + AuIop_OTHER; ++ init_special_inode(inode, mode, h_inode->i_rdev); ++ break; ++ default: ++ AuIOErr("Unknown file type 0%o\n", mode); ++ err = -EIO; ++ goto out; ++ } ++ ++ /* do not set hnotify for whiteouted dirs (SHWH mode) */ ++ flags = au_hi_flags(inode, isdir); ++ if (au_opt_test(au_mntflags(dentry->d_sb), SHWH) ++ && au_ftest_hi(flags, HNOTIFY) ++ && dentry->d_name.len > AUFS_WH_PFX_LEN ++ && !memcmp(dentry->d_name.name, AUFS_WH_PFX, AUFS_WH_PFX_LEN)) ++ au_fclr_hi(flags, HNOTIFY); ++ iinfo = au_ii(inode); ++ iinfo->ii_btop = btop; ++ iinfo->ii_bbot = btail; ++ for (bindex = btop; bindex <= btail; bindex++) { ++ h_dentry = au_h_dptr(dentry, bindex); ++ if (h_dentry) ++ au_set_h_iptr(inode, bindex, ++ au_igrab(d_inode(h_dentry)), flags); ++ } ++ au_cpup_attr_all(inode, /*force*/1); ++ /* ++ * to force calling aufs_get_acl() every time, ++ * do not call cache_no_acl() for aufs inode. ++ */ ++ ++out: ++ return err; ++} ++ ++/* ++ * successful returns with iinfo write_locked ++ * minus: errno ++ * zero: success, matched ++ * plus: no error, but unmatched ++ */ ++static int reval_inode(struct inode *inode, struct dentry *dentry) ++{ ++ int err; ++ unsigned int gen, igflags; ++ aufs_bindex_t bindex, bbot; ++ struct inode *h_inode, *h_dinode; ++ struct dentry *h_dentry; ++ ++ /* ++ * before this function, if aufs got any iinfo lock, it must be only ++ * one, the parent dir. ++ * it can happen by UDBA and the obsoleted inode number. ++ */ ++ err = -EIO; ++ if (unlikely(inode->i_ino == parent_ino(dentry))) ++ goto out; ++ ++ err = 1; ++ ii_write_lock_new_child(inode); ++ h_dentry = au_h_dptr(dentry, au_dbtop(dentry)); ++ h_dinode = d_inode(h_dentry); ++ bbot = au_ibbot(inode); ++ for (bindex = au_ibtop(inode); bindex <= bbot; bindex++) { ++ h_inode = au_h_iptr(inode, bindex); ++ if (!h_inode || h_inode != h_dinode) ++ continue; ++ ++ err = 0; ++ gen = au_iigen(inode, &igflags); ++ if (gen == au_digen(dentry) ++ && !au_ig_ftest(igflags, HALF_REFRESHED)) ++ break; ++ ++ /* fully refresh inode using dentry */ ++ err = au_refresh_hinode(inode, dentry); ++ if (!err) ++ au_update_iigen(inode, /*half*/0); ++ break; ++ } ++ ++ if (unlikely(err)) ++ ii_write_unlock(inode); ++out: ++ return err; ++} ++ ++int au_ino(struct super_block *sb, aufs_bindex_t bindex, ino_t h_ino, ++ unsigned int d_type, ino_t *ino) ++{ ++ int err, idx; ++ const int isnondir = d_type != DT_DIR; ++ ++ /* prevent hardlinked inode number from race condition */ ++ if (isnondir) { ++ err = au_xinondir_enter(sb, bindex, h_ino, &idx); ++ if (unlikely(err)) ++ goto out; ++ } ++ ++ err = au_xino_read(sb, bindex, h_ino, ino); ++ if (unlikely(err)) ++ goto out_xinondir; ++ ++ if (!*ino) { ++ err = -EIO; ++ *ino = au_xino_new_ino(sb); ++ if (unlikely(!*ino)) ++ goto out_xinondir; ++ err = au_xino_write(sb, bindex, h_ino, *ino); ++ if (unlikely(err)) ++ goto out_xinondir; ++ } ++ ++out_xinondir: ++ if (isnondir && idx >= 0) ++ au_xinondir_leave(sb, bindex, h_ino, idx); ++out: ++ return err; ++} ++ ++/* successful returns with iinfo write_locked */ ++/* todo: return with unlocked? */ ++struct inode *au_new_inode(struct dentry *dentry, int must_new) ++{ ++ struct inode *inode, *h_inode; ++ struct dentry *h_dentry; ++ struct super_block *sb; ++ ino_t h_ino, ino; ++ int err, idx, hlinked; ++ aufs_bindex_t btop; ++ ++ sb = dentry->d_sb; ++ btop = au_dbtop(dentry); ++ h_dentry = au_h_dptr(dentry, btop); ++ h_inode = d_inode(h_dentry); ++ h_ino = h_inode->i_ino; ++ hlinked = !d_is_dir(h_dentry) && h_inode->i_nlink > 1; ++ ++new_ino: ++ /* ++ * stop 'race'-ing between hardlinks under different ++ * parents. ++ */ ++ if (hlinked) { ++ err = au_xinondir_enter(sb, btop, h_ino, &idx); ++ inode = ERR_PTR(err); ++ if (unlikely(err)) ++ goto out; ++ } ++ ++ err = au_xino_read(sb, btop, h_ino, &ino); ++ inode = ERR_PTR(err); ++ if (unlikely(err)) ++ goto out_xinondir; ++ ++ if (!ino) { ++ ino = au_xino_new_ino(sb); ++ if (unlikely(!ino)) { ++ inode = ERR_PTR(-EIO); ++ goto out_xinondir; ++ } ++ } ++ ++ AuDbg("i%lu\n", (unsigned long)ino); ++ inode = au_iget_locked(sb, ino); ++ err = PTR_ERR(inode); ++ if (IS_ERR(inode)) ++ goto out_xinondir; ++ ++ AuDbg("%lx, new %d\n", inode->i_state, !!(inode->i_state & I_NEW)); ++ if (inode->i_state & I_NEW) { ++ ii_write_lock_new_child(inode); ++ err = set_inode(inode, dentry); ++ if (!err) { ++ unlock_new_inode(inode); ++ goto out_xinondir; /* success */ ++ } ++ ++ /* ++ * iget_failed() calls iput(), but we need to call ++ * ii_write_unlock() after iget_failed(). so dirty hack for ++ * i_count. ++ */ ++ atomic_inc(&inode->i_count); ++ iget_failed(inode); ++ ii_write_unlock(inode); ++ au_xino_write(sb, btop, h_ino, /*ino*/0); ++ /* ignore this error */ ++ goto out_iput; ++ } else if (!must_new && !IS_DEADDIR(inode) && inode->i_nlink) { ++ /* ++ * horrible race condition between lookup, readdir and copyup ++ * (or something). ++ */ ++ if (hlinked && idx >= 0) ++ au_xinondir_leave(sb, btop, h_ino, idx); ++ err = reval_inode(inode, dentry); ++ if (unlikely(err < 0)) { ++ hlinked = 0; ++ goto out_iput; ++ } ++ if (!err) ++ goto out; /* success */ ++ else if (hlinked && idx >= 0) { ++ err = au_xinondir_enter(sb, btop, h_ino, &idx); ++ if (unlikely(err)) { ++ iput(inode); ++ inode = ERR_PTR(err); ++ goto out; ++ } ++ } ++ } ++ ++ if (unlikely(au_test_fs_unique_ino(h_inode))) ++ AuWarn1("Warning: Un-notified UDBA or repeatedly renamed dir," ++ " b%d, %s, %pd, hi%lu, i%lu.\n", ++ btop, au_sbtype(h_dentry->d_sb), dentry, ++ (unsigned long)h_ino, (unsigned long)ino); ++ ino = 0; ++ err = au_xino_write(sb, btop, h_ino, /*ino*/0); ++ if (!err) { ++ iput(inode); ++ if (hlinked && idx >= 0) ++ au_xinondir_leave(sb, btop, h_ino, idx); ++ goto new_ino; ++ } ++ ++out_iput: ++ iput(inode); ++ inode = ERR_PTR(err); ++out_xinondir: ++ if (hlinked && idx >= 0) ++ au_xinondir_leave(sb, btop, h_ino, idx); ++out: ++ return inode; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++int au_test_ro(struct super_block *sb, aufs_bindex_t bindex, ++ struct inode *inode) ++{ ++ int err; ++ struct inode *hi; ++ ++ err = au_br_rdonly(au_sbr(sb, bindex)); ++ ++ /* pseudo-link after flushed may happen out of bounds */ ++ if (!err ++ && inode ++ && au_ibtop(inode) <= bindex ++ && bindex <= au_ibbot(inode)) { ++ /* ++ * permission check is unnecessary since vfsub routine ++ * will be called later ++ */ ++ hi = au_h_iptr(inode, bindex); ++ if (hi) ++ err = IS_IMMUTABLE(hi) ? -EROFS : 0; ++ } ++ ++ return err; ++} ++ ++int au_test_h_perm(struct user_namespace *h_userns, struct inode *h_inode, ++ int mask) ++{ ++ if (uid_eq(current_fsuid(), GLOBAL_ROOT_UID)) ++ return 0; ++ return inode_permission(h_userns, h_inode, mask); ++} ++ ++int au_test_h_perm_sio(struct user_namespace *h_userns, struct inode *h_inode, ++ int mask) ++{ ++ if (au_test_nfs(h_inode->i_sb) ++ && (mask & MAY_WRITE) ++ && S_ISDIR(h_inode->i_mode)) ++ mask |= MAY_READ; /* force permission check */ ++ return au_test_h_perm(h_userns, h_inode, mask); ++} +diff -Naur linux-5.15/fs/aufs/inode.h aufs5-linux-aufs5.15/fs/aufs/inode.h +--- linux-5.15/fs/aufs/inode.h 1970-01-01 03:00:00.000000000 +0300 ++++ aufs5-linux-aufs5.15/fs/aufs/inode.h 2022-03-07 13:48:09.000000000 +0300 +@@ -0,0 +1,692 @@ ++/* SPDX-License-Identifier: GPL-2.0 */ ++/* ++ * Copyright (C) 2005-2021 Junjiro R. Okajima ++ */ ++ ++/* ++ * inode operations ++ */ ++ ++#ifndef __AUFS_INODE_H__ ++#define __AUFS_INODE_H__ ++ ++#ifdef __KERNEL__ ++ ++#include ++#include "rwsem.h" ++ ++struct vfsmount; ++ ++struct au_hnotify { ++#ifdef CONFIG_AUFS_HNOTIFY ++#ifdef CONFIG_AUFS_HFSNOTIFY ++ /* never use fsnotify_add_vfsmount_mark() */ ++ struct fsnotify_mark hn_mark; ++#endif ++ struct inode *hn_aufs_inode; /* no get/put */ ++ struct rcu_head rcu; ++#endif ++} ____cacheline_aligned_in_smp; ++ ++struct au_hinode { ++ struct inode *hi_inode; ++ aufs_bindex_t hi_id; ++#ifdef CONFIG_AUFS_HNOTIFY ++ struct au_hnotify *hi_notify; ++#endif ++ ++ /* reference to the copied-up whiteout with get/put */ ++ struct dentry *hi_whdentry; ++}; ++ ++/* ig_flags */ ++#define AuIG_HALF_REFRESHED 1 ++#define au_ig_ftest(flags, name) ((flags) & AuIG_##name) ++#define au_ig_fset(flags, name) \ ++ do { (flags) |= AuIG_##name; } while (0) ++#define au_ig_fclr(flags, name) \ ++ do { (flags) &= ~AuIG_##name; } while (0) ++ ++struct au_iigen { ++ spinlock_t ig_spin; ++ __u32 ig_generation, ig_flags; ++}; ++ ++struct au_vdir; ++struct au_iinfo { ++ struct au_iigen ii_generation; ++ struct super_block *ii_hsb1; /* no get/put */ ++ ++ struct au_rwsem ii_rwsem; ++ aufs_bindex_t ii_btop, ii_bbot; ++ __u32 ii_higen; ++ struct au_hinode *ii_hinode; ++ struct au_vdir *ii_vdir; ++}; ++ ++struct au_icntnr { ++ struct au_iinfo iinfo; ++ struct inode vfs_inode; ++ struct hlist_bl_node plink; ++ struct rcu_head rcu; ++} ____cacheline_aligned_in_smp; ++ ++/* au_pin flags */ ++#define AuPin_DI_LOCKED 1 ++#define AuPin_MNT_WRITE (1 << 1) ++#define au_ftest_pin(flags, name) ((flags) & AuPin_##name) ++#define au_fset_pin(flags, name) \ ++ do { (flags) |= AuPin_##name; } while (0) ++#define au_fclr_pin(flags, name) \ ++ do { (flags) &= ~AuPin_##name; } while (0) ++ ++struct au_pin { ++ /* input */ ++ struct dentry *dentry; ++ unsigned int udba; ++ unsigned char lsc_di, lsc_hi, flags; ++ aufs_bindex_t bindex; ++ ++ /* output */ ++ struct dentry *parent; ++ struct au_hinode *hdir; ++ struct vfsmount *h_mnt; ++ ++ /* temporary unlock/relock for copyup */ ++ struct dentry *h_dentry, *h_parent; ++ struct au_branch *br; ++ struct task_struct *task; ++}; ++ ++void au_pin_hdir_unlock(struct au_pin *p); ++int au_pin_hdir_lock(struct au_pin *p); ++int au_pin_hdir_relock(struct au_pin *p); ++void au_pin_hdir_acquire_nest(struct au_pin *p); ++void au_pin_hdir_release(struct au_pin *p); ++ ++/* ---------------------------------------------------------------------- */ ++ ++static inline struct au_iinfo *au_ii(struct inode *inode) ++{ ++ BUG_ON(is_bad_inode(inode)); ++ return &(container_of(inode, struct au_icntnr, vfs_inode)->iinfo); ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++/* inode.c */ ++struct inode *au_igrab(struct inode *inode); ++void au_refresh_iop(struct inode *inode, int force_getattr); ++int au_refresh_hinode_self(struct inode *inode); ++int au_refresh_hinode(struct inode *inode, struct dentry *dentry); ++int au_ino(struct super_block *sb, aufs_bindex_t bindex, ino_t h_ino, ++ unsigned int d_type, ino_t *ino); ++struct inode *au_new_inode(struct dentry *dentry, int must_new); ++int au_test_ro(struct super_block *sb, aufs_bindex_t bindex, ++ struct inode *inode); ++int au_test_h_perm(struct user_namespace *h_userns, struct inode *h_inode, ++ int mask); ++int au_test_h_perm_sio(struct user_namespace *h_userns, struct inode *h_inode, ++ int mask); ++ ++static inline int au_wh_ino(struct super_block *sb, aufs_bindex_t bindex, ++ ino_t h_ino, unsigned int d_type, ino_t *ino) ++{ ++#ifdef CONFIG_AUFS_SHWH ++ return au_ino(sb, bindex, h_ino, d_type, ino); ++#else ++ return 0; ++#endif ++} ++ ++/* i_op.c */ ++enum { ++ AuIop_SYMLINK, ++ AuIop_DIR, ++ AuIop_OTHER, ++ AuIop_Last ++}; ++extern struct inode_operations aufs_iop[AuIop_Last], /* not const */ ++ aufs_iop_nogetattr[AuIop_Last]; ++ ++/* au_wr_dir flags */ ++#define AuWrDir_ADD_ENTRY 1 ++#define AuWrDir_ISDIR (1 << 1) ++#define AuWrDir_TMPFILE (1 << 2) ++#define au_ftest_wrdir(flags, name) ((flags) & AuWrDir_##name) ++#define au_fset_wrdir(flags, name) \ ++ do { (flags) |= AuWrDir_##name; } while (0) ++#define au_fclr_wrdir(flags, name) \ ++ do { (flags) &= ~AuWrDir_##name; } while (0) ++ ++struct au_wr_dir_args { ++ aufs_bindex_t force_btgt; ++ unsigned char flags; ++}; ++int au_wr_dir(struct dentry *dentry, struct dentry *src_dentry, ++ struct au_wr_dir_args *args); ++ ++struct dentry *au_pinned_h_parent(struct au_pin *pin); ++void au_pin_init(struct au_pin *pin, struct dentry *dentry, ++ aufs_bindex_t bindex, int lsc_di, int lsc_hi, ++ unsigned int udba, unsigned char flags); ++int au_pin(struct au_pin *pin, struct dentry *dentry, aufs_bindex_t bindex, ++ unsigned int udba, unsigned char flags) __must_check; ++int au_do_pin(struct au_pin *pin) __must_check; ++void au_unpin(struct au_pin *pin); ++int au_reval_for_attr(struct dentry *dentry, unsigned int sigen); ++ ++#define AuIcpup_DID_CPUP 1 ++#define au_ftest_icpup(flags, name) ((flags) & AuIcpup_##name) ++#define au_fset_icpup(flags, name) \ ++ do { (flags) |= AuIcpup_##name; } while (0) ++#define au_fclr_icpup(flags, name) \ ++ do { (flags) &= ~AuIcpup_##name; } while (0) ++ ++struct au_icpup_args { ++ unsigned char flags; ++ unsigned char pin_flags; ++ aufs_bindex_t btgt; ++ unsigned int udba; ++ struct au_pin pin; ++ struct path h_path; ++ struct inode *h_inode; ++}; ++ ++int au_pin_and_icpup(struct dentry *dentry, struct iattr *ia, ++ struct au_icpup_args *a); ++ ++int au_h_path_getattr(struct dentry *dentry, struct inode *inode, int force, ++ struct path *h_path, int locked); ++ ++/* i_op_add.c */ ++int au_may_add(struct dentry *dentry, aufs_bindex_t bindex, ++ struct dentry *h_parent, int isdir); ++int aufs_mknod(struct user_namespace *userns, struct inode *dir, ++ struct dentry *dentry, umode_t mode, dev_t dev); ++int aufs_symlink(struct user_namespace *userns, struct inode *dir, ++ struct dentry *dentry, const char *symname); ++int aufs_create(struct user_namespace *userns, struct inode *dir, ++ struct dentry *dentry, umode_t mode, bool want_excl); ++struct vfsub_aopen_args; ++int au_aopen_or_create(struct inode *dir, struct dentry *dentry, ++ struct vfsub_aopen_args *args); ++int aufs_tmpfile(struct user_namespace *userns, struct inode *dir, ++ struct dentry *dentry, umode_t mode); ++int aufs_link(struct dentry *src_dentry, struct inode *dir, ++ struct dentry *dentry); ++int aufs_mkdir(struct user_namespace *userns, struct inode *dir, ++ struct dentry *dentry, umode_t mode); ++ ++/* i_op_del.c */ ++int au_wr_dir_need_wh(struct dentry *dentry, int isdir, aufs_bindex_t *bcpup); ++int au_may_del(struct dentry *dentry, aufs_bindex_t bindex, ++ struct dentry *h_parent, int isdir); ++int aufs_unlink(struct inode *dir, struct dentry *dentry); ++int aufs_rmdir(struct inode *dir, struct dentry *dentry); ++ ++/* i_op_ren.c */ ++int au_wbr(struct dentry *dentry, aufs_bindex_t btgt); ++int aufs_rename(struct user_namespace *userns, ++ struct inode *_src_dir, struct dentry *_src_dentry, ++ struct inode *_dst_dir, struct dentry *_dst_dentry, ++ unsigned int _flags); ++ ++/* iinfo.c */ ++struct inode *au_h_iptr(struct inode *inode, aufs_bindex_t bindex); ++void au_hiput(struct au_hinode *hinode); ++void au_set_hi_wh(struct inode *inode, aufs_bindex_t bindex, ++ struct dentry *h_wh); ++unsigned int au_hi_flags(struct inode *inode, int isdir); ++ ++/* hinode flags */ ++#define AuHi_XINO 1 ++#define AuHi_HNOTIFY (1 << 1) ++#define au_ftest_hi(flags, name) ((flags) & AuHi_##name) ++#define au_fset_hi(flags, name) \ ++ do { (flags) |= AuHi_##name; } while (0) ++#define au_fclr_hi(flags, name) \ ++ do { (flags) &= ~AuHi_##name; } while (0) ++ ++#ifndef CONFIG_AUFS_HNOTIFY ++#undef AuHi_HNOTIFY ++#define AuHi_HNOTIFY 0 ++#endif ++ ++void au_set_h_iptr(struct inode *inode, aufs_bindex_t bindex, ++ struct inode *h_inode, unsigned int flags); ++ ++void au_update_iigen(struct inode *inode, int half); ++void au_update_ibrange(struct inode *inode, int do_put_zero); ++ ++void au_icntnr_init_once(void *_c); ++void au_hinode_init(struct au_hinode *hinode); ++int au_iinfo_init(struct inode *inode); ++void au_iinfo_fin(struct inode *inode); ++int au_hinode_realloc(struct au_iinfo *iinfo, int nbr, int may_shrink); ++ ++#ifdef CONFIG_PROC_FS ++/* plink.c */ ++int au_plink_maint(struct super_block *sb, int flags); ++struct au_sbinfo; ++void au_plink_maint_leave(struct au_sbinfo *sbinfo); ++int au_plink_maint_enter(struct super_block *sb); ++#ifdef CONFIG_AUFS_DEBUG ++void au_plink_list(struct super_block *sb); ++#else ++AuStubVoid(au_plink_list, struct super_block *sb) ++#endif ++int au_plink_test(struct inode *inode); ++struct dentry *au_plink_lkup(struct inode *inode, aufs_bindex_t bindex); ++void au_plink_append(struct inode *inode, aufs_bindex_t bindex, ++ struct dentry *h_dentry); ++void au_plink_put(struct super_block *sb, int verbose); ++void au_plink_clean(struct super_block *sb, int verbose); ++void au_plink_half_refresh(struct super_block *sb, aufs_bindex_t br_id); ++#else ++AuStubInt0(au_plink_maint, struct super_block *sb, int flags); ++AuStubVoid(au_plink_maint_leave, struct au_sbinfo *sbinfo); ++AuStubInt0(au_plink_maint_enter, struct super_block *sb); ++AuStubVoid(au_plink_list, struct super_block *sb); ++AuStubInt0(au_plink_test, struct inode *inode); ++AuStub(struct dentry *, au_plink_lkup, return NULL, ++ struct inode *inode, aufs_bindex_t bindex); ++AuStubVoid(au_plink_append, struct inode *inode, aufs_bindex_t bindex, ++ struct dentry *h_dentry); ++AuStubVoid(au_plink_put, struct super_block *sb, int verbose); ++AuStubVoid(au_plink_clean, struct super_block *sb, int verbose); ++AuStubVoid(au_plink_half_refresh, struct super_block *sb, aufs_bindex_t br_id); ++#endif /* CONFIG_PROC_FS */ ++ ++#ifdef CONFIG_AUFS_XATTR ++/* xattr.c */ ++int au_cpup_xattr(struct path *h_dst, struct path *h_src, int ignore_flags, ++ unsigned int verbose); ++ssize_t aufs_listxattr(struct dentry *dentry, char *list, size_t size); ++void au_xattr_init(struct super_block *sb); ++#else ++AuStubInt0(au_cpup_xattr, struct path *h_dst, struct path *h_src, ++ int ignore_flags, unsigned int verbose); ++AuStubVoid(au_xattr_init, struct super_block *sb); ++#endif ++ ++#ifdef CONFIG_FS_POSIX_ACL ++struct posix_acl *aufs_get_acl(struct inode *inode, int type, bool rcu); ++int aufs_set_acl(struct user_namespace *userns, struct inode *inode, ++ struct posix_acl *acl, int type); ++#endif ++ ++#if IS_ENABLED(CONFIG_AUFS_XATTR) || IS_ENABLED(CONFIG_FS_POSIX_ACL) ++enum { ++ AU_XATTR_SET, ++ AU_ACL_SET ++}; ++ ++struct au_sxattr { ++ int type; ++ union { ++ struct { ++ const char *name; ++ const void *value; ++ size_t size; ++ int flags; ++ } set; ++ struct { ++ struct posix_acl *acl; ++ int type; ++ } acl_set; ++ } u; ++}; ++ssize_t au_sxattr(struct dentry *dentry, struct inode *inode, ++ struct au_sxattr *arg); ++#endif ++ ++/* ---------------------------------------------------------------------- */ ++ ++/* lock subclass for iinfo */ ++enum { ++ AuLsc_II_CHILD, /* child first */ ++ AuLsc_II_CHILD2, /* rename(2), link(2), and cpup at hnotify */ ++ AuLsc_II_CHILD3, /* copyup dirs */ ++ AuLsc_II_PARENT, /* see AuLsc_I_PARENT in vfsub.h */ ++ AuLsc_II_PARENT2, ++ AuLsc_II_PARENT3, /* copyup dirs */ ++ AuLsc_II_NEW_CHILD ++}; ++ ++/* ++ * ii_read_lock_child, ii_write_lock_child, ++ * ii_read_lock_child2, ii_write_lock_child2, ++ * ii_read_lock_child3, ii_write_lock_child3, ++ * ii_read_lock_parent, ii_write_lock_parent, ++ * ii_read_lock_parent2, ii_write_lock_parent2, ++ * ii_read_lock_parent3, ii_write_lock_parent3, ++ * ii_read_lock_new_child, ii_write_lock_new_child, ++ */ ++#define AuReadLockFunc(name, lsc) \ ++static inline void ii_read_lock_##name(struct inode *i) \ ++{ \ ++ au_rw_read_lock_nested(&au_ii(i)->ii_rwsem, AuLsc_II_##lsc); \ ++} ++ ++#define AuWriteLockFunc(name, lsc) \ ++static inline void ii_write_lock_##name(struct inode *i) \ ++{ \ ++ au_rw_write_lock_nested(&au_ii(i)->ii_rwsem, AuLsc_II_##lsc); \ ++} ++ ++#define AuRWLockFuncs(name, lsc) \ ++ AuReadLockFunc(name, lsc) \ ++ AuWriteLockFunc(name, lsc) ++ ++AuRWLockFuncs(child, CHILD); ++AuRWLockFuncs(child2, CHILD2); ++AuRWLockFuncs(child3, CHILD3); ++AuRWLockFuncs(parent, PARENT); ++AuRWLockFuncs(parent2, PARENT2); ++AuRWLockFuncs(parent3, PARENT3); ++AuRWLockFuncs(new_child, NEW_CHILD); ++ ++#undef AuReadLockFunc ++#undef AuWriteLockFunc ++#undef AuRWLockFuncs ++ ++#define ii_read_unlock(i) au_rw_read_unlock(&au_ii(i)->ii_rwsem) ++#define ii_write_unlock(i) au_rw_write_unlock(&au_ii(i)->ii_rwsem) ++#define ii_downgrade_lock(i) au_rw_dgrade_lock(&au_ii(i)->ii_rwsem) ++ ++#define IiMustNoWaiters(i) AuRwMustNoWaiters(&au_ii(i)->ii_rwsem) ++#define IiMustAnyLock(i) AuRwMustAnyLock(&au_ii(i)->ii_rwsem) ++#define IiMustWriteLock(i) AuRwMustWriteLock(&au_ii(i)->ii_rwsem) ++ ++/* ---------------------------------------------------------------------- */ ++ ++static inline void au_icntnr_init(struct au_icntnr *c) ++{ ++#ifdef CONFIG_AUFS_DEBUG ++ c->vfs_inode.i_mode = 0; ++#endif ++} ++ ++static inline unsigned int au_iigen(struct inode *inode, unsigned int *igflags) ++{ ++ unsigned int gen; ++ struct au_iinfo *iinfo; ++ struct au_iigen *iigen; ++ ++ iinfo = au_ii(inode); ++ iigen = &iinfo->ii_generation; ++ spin_lock(&iigen->ig_spin); ++ if (igflags) ++ *igflags = iigen->ig_flags; ++ gen = iigen->ig_generation; ++ spin_unlock(&iigen->ig_spin); ++ ++ return gen; ++} ++ ++/* tiny test for inode number */ ++/* tmpfs generation is too rough */ ++static inline int au_test_higen(struct inode *inode, struct inode *h_inode) ++{ ++ struct au_iinfo *iinfo; ++ ++ iinfo = au_ii(inode); ++ AuRwMustAnyLock(&iinfo->ii_rwsem); ++ return !(iinfo->ii_hsb1 == h_inode->i_sb ++ && iinfo->ii_higen == h_inode->i_generation); ++} ++ ++static inline void au_iigen_dec(struct inode *inode) ++{ ++ struct au_iinfo *iinfo; ++ struct au_iigen *iigen; ++ ++ iinfo = au_ii(inode); ++ iigen = &iinfo->ii_generation; ++ spin_lock(&iigen->ig_spin); ++ iigen->ig_generation--; ++ spin_unlock(&iigen->ig_spin); ++} ++ ++static inline int au_iigen_test(struct inode *inode, unsigned int sigen) ++{ ++ int err; ++ ++ err = 0; ++ if (unlikely(inode && au_iigen(inode, NULL) != sigen)) ++ err = -EIO; ++ ++ return err; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++static inline struct au_hinode *au_hinode(struct au_iinfo *iinfo, ++ aufs_bindex_t bindex) ++{ ++ return iinfo->ii_hinode + bindex; ++} ++ ++static inline int au_is_bad_inode(struct inode *inode) ++{ ++ return !!(is_bad_inode(inode) || !au_hinode(au_ii(inode), 0)); ++} ++ ++static inline aufs_bindex_t au_ii_br_id(struct inode *inode, ++ aufs_bindex_t bindex) ++{ ++ IiMustAnyLock(inode); ++ return au_hinode(au_ii(inode), bindex)->hi_id; ++} ++ ++static inline aufs_bindex_t au_ibtop(struct inode *inode) ++{ ++ IiMustAnyLock(inode); ++ return au_ii(inode)->ii_btop; ++} ++ ++static inline aufs_bindex_t au_ibbot(struct inode *inode) ++{ ++ IiMustAnyLock(inode); ++ return au_ii(inode)->ii_bbot; ++} ++ ++static inline struct au_vdir *au_ivdir(struct inode *inode) ++{ ++ IiMustAnyLock(inode); ++ return au_ii(inode)->ii_vdir; ++} ++ ++static inline struct dentry *au_hi_wh(struct inode *inode, aufs_bindex_t bindex) ++{ ++ IiMustAnyLock(inode); ++ return au_hinode(au_ii(inode), bindex)->hi_whdentry; ++} ++ ++static inline void au_set_ibtop(struct inode *inode, aufs_bindex_t bindex) ++{ ++ IiMustWriteLock(inode); ++ au_ii(inode)->ii_btop = bindex; ++} ++ ++static inline void au_set_ibbot(struct inode *inode, aufs_bindex_t bindex) ++{ ++ IiMustWriteLock(inode); ++ au_ii(inode)->ii_bbot = bindex; ++} ++ ++static inline void au_set_ivdir(struct inode *inode, struct au_vdir *vdir) ++{ ++ IiMustWriteLock(inode); ++ au_ii(inode)->ii_vdir = vdir; ++} ++ ++static inline struct au_hinode *au_hi(struct inode *inode, aufs_bindex_t bindex) ++{ ++ IiMustAnyLock(inode); ++ return au_hinode(au_ii(inode), bindex); ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++static inline struct dentry *au_pinned_parent(struct au_pin *pin) ++{ ++ if (pin) ++ return pin->parent; ++ return NULL; ++} ++ ++static inline struct inode *au_pinned_h_dir(struct au_pin *pin) ++{ ++ if (pin && pin->hdir) ++ return pin->hdir->hi_inode; ++ return NULL; ++} ++ ++static inline struct au_hinode *au_pinned_hdir(struct au_pin *pin) ++{ ++ if (pin) ++ return pin->hdir; ++ return NULL; ++} ++ ++static inline void au_pin_set_dentry(struct au_pin *pin, struct dentry *dentry) ++{ ++ if (pin) ++ pin->dentry = dentry; ++} ++ ++static inline void au_pin_set_parent_lflag(struct au_pin *pin, ++ unsigned char lflag) ++{ ++ if (pin) { ++ if (lflag) ++ au_fset_pin(pin->flags, DI_LOCKED); ++ else ++ au_fclr_pin(pin->flags, DI_LOCKED); ++ } ++} ++ ++#if 0 /* reserved */ ++static inline void au_pin_set_parent(struct au_pin *pin, struct dentry *parent) ++{ ++ if (pin) { ++ dput(pin->parent); ++ pin->parent = dget(parent); ++ } ++} ++#endif ++ ++/* ---------------------------------------------------------------------- */ ++ ++struct au_branch; ++#ifdef CONFIG_AUFS_HNOTIFY ++struct au_hnotify_op { ++ void (*ctl)(struct au_hinode *hinode, int do_set); ++ int (*alloc)(struct au_hinode *hinode); ++ ++ /* ++ * if it returns true, the caller should free hinode->hi_notify, ++ * otherwise ->free() frees it. ++ */ ++ int (*free)(struct au_hinode *hinode, ++ struct au_hnotify *hn) __must_check; ++ ++ void (*fin)(void); ++ int (*init)(void); ++ ++ int (*reset_br)(unsigned int udba, struct au_branch *br, int perm); ++ void (*fin_br)(struct au_branch *br); ++ int (*init_br)(struct au_branch *br, int perm); ++}; ++ ++/* hnotify.c */ ++int au_hn_alloc(struct au_hinode *hinode, struct inode *inode); ++void au_hn_free(struct au_hinode *hinode); ++void au_hn_ctl(struct au_hinode *hinode, int do_set); ++void au_hn_reset(struct inode *inode, unsigned int flags); ++int au_hnotify(struct inode *h_dir, struct au_hnotify *hnotify, u32 mask, ++ const struct qstr *h_child_qstr, struct inode *h_child_inode); ++int au_hnotify_reset_br(unsigned int udba, struct au_branch *br, int perm); ++int au_hnotify_init_br(struct au_branch *br, int perm); ++void au_hnotify_fin_br(struct au_branch *br); ++int __init au_hnotify_init(void); ++void au_hnotify_fin(void); ++ ++/* hfsnotify.c */ ++extern const struct au_hnotify_op au_hnotify_op; ++ ++static inline ++void au_hn_init(struct au_hinode *hinode) ++{ ++ hinode->hi_notify = NULL; ++} ++ ++static inline struct au_hnotify *au_hn(struct au_hinode *hinode) ++{ ++ return hinode->hi_notify; ++} ++ ++#else ++AuStub(int, au_hn_alloc, return -EOPNOTSUPP, ++ struct au_hinode *hinode __maybe_unused, ++ struct inode *inode __maybe_unused) ++AuStub(struct au_hnotify *, au_hn, return NULL, struct au_hinode *hinode) ++AuStubVoid(au_hn_free, struct au_hinode *hinode __maybe_unused) ++AuStubVoid(au_hn_ctl, struct au_hinode *hinode __maybe_unused, ++ int do_set __maybe_unused) ++AuStubVoid(au_hn_reset, struct inode *inode __maybe_unused, ++ unsigned int flags __maybe_unused) ++AuStubInt0(au_hnotify_reset_br, unsigned int udba __maybe_unused, ++ struct au_branch *br __maybe_unused, ++ int perm __maybe_unused) ++AuStubInt0(au_hnotify_init_br, struct au_branch *br __maybe_unused, ++ int perm __maybe_unused) ++AuStubVoid(au_hnotify_fin_br, struct au_branch *br __maybe_unused) ++AuStubInt0(__init au_hnotify_init, void) ++AuStubVoid(au_hnotify_fin, void) ++AuStubVoid(au_hn_init, struct au_hinode *hinode __maybe_unused) ++#endif /* CONFIG_AUFS_HNOTIFY */ ++ ++static inline void au_hn_suspend(struct au_hinode *hdir) ++{ ++ au_hn_ctl(hdir, /*do_set*/0); ++} ++ ++static inline void au_hn_resume(struct au_hinode *hdir) ++{ ++ au_hn_ctl(hdir, /*do_set*/1); ++} ++ ++static inline void au_hn_inode_lock(struct au_hinode *hdir) ++{ ++ inode_lock(hdir->hi_inode); ++ au_hn_suspend(hdir); ++} ++ ++static inline void au_hn_inode_lock_nested(struct au_hinode *hdir, ++ unsigned int sc __maybe_unused) ++{ ++ inode_lock_nested(hdir->hi_inode, sc); ++ au_hn_suspend(hdir); ++} ++ ++#if 0 /* unused */ ++#include "vfsub.h" ++static inline void au_hn_inode_lock_shared_nested(struct au_hinode *hdir, ++ unsigned int sc) ++{ ++ inode_lock_shared_nested(hdir->hi_inode, sc); ++ au_hn_suspend(hdir); ++} ++#endif ++ ++static inline void au_hn_inode_unlock(struct au_hinode *hdir) ++{ ++ au_hn_resume(hdir); ++ inode_unlock(hdir->hi_inode); ++} ++ ++#endif /* __KERNEL__ */ ++#endif /* __AUFS_INODE_H__ */ +diff -Naur linux-5.15/fs/aufs/ioctl.c aufs5-linux-aufs5.15/fs/aufs/ioctl.c +--- linux-5.15/fs/aufs/ioctl.c 1970-01-01 03:00:00.000000000 +0300 ++++ aufs5-linux-aufs5.15/fs/aufs/ioctl.c 2022-03-07 13:48:09.000000000 +0300 +@@ -0,0 +1,207 @@ ++// SPDX-License-Identifier: GPL-2.0 ++/* ++ * Copyright (C) 2005-2021 Junjiro R. Okajima ++ */ ++ ++/* ++ * ioctl ++ * plink-management and readdir in userspace. ++ * assist the pathconf(3) wrapper library. ++ * move-down ++ * File-based Hierarchical Storage Management. ++ */ ++ ++#include ++#include ++#include "aufs.h" ++ ++static int au_wbr_fd(struct path *path, struct aufs_wbr_fd __user *arg) ++{ ++ int err, fd; ++ aufs_bindex_t wbi, bindex, bbot; ++ struct file *h_file; ++ struct super_block *sb; ++ struct dentry *root; ++ struct au_branch *br; ++ struct aufs_wbr_fd wbrfd = { ++ .oflags = au_dir_roflags, ++ .brid = -1 ++ }; ++ const int valid = O_RDONLY | O_NONBLOCK | O_LARGEFILE | O_DIRECTORY ++ | O_NOATIME | O_CLOEXEC; ++ ++ AuDebugOn(wbrfd.oflags & ~valid); ++ ++ if (arg) { ++ err = copy_from_user(&wbrfd, arg, sizeof(wbrfd)); ++ if (unlikely(err)) { ++ err = -EFAULT; ++ goto out; ++ } ++ ++ err = -EINVAL; ++ AuDbg("wbrfd{0%o, %d}\n", wbrfd.oflags, wbrfd.brid); ++ wbrfd.oflags |= au_dir_roflags; ++ AuDbg("0%o\n", wbrfd.oflags); ++ if (unlikely(wbrfd.oflags & ~valid)) ++ goto out; ++ } ++ ++ fd = get_unused_fd_flags(0); ++ err = fd; ++ if (unlikely(fd < 0)) ++ goto out; ++ ++ h_file = ERR_PTR(-EINVAL); ++ wbi = 0; ++ br = NULL; ++ sb = path->dentry->d_sb; ++ root = sb->s_root; ++ aufs_read_lock(root, AuLock_IR); ++ bbot = au_sbbot(sb); ++ if (wbrfd.brid >= 0) { ++ wbi = au_br_index(sb, wbrfd.brid); ++ if (unlikely(wbi < 0 || wbi > bbot)) ++ goto out_unlock; ++ } ++ ++ h_file = ERR_PTR(-ENOENT); ++ br = au_sbr(sb, wbi); ++ if (!au_br_writable(br->br_perm)) { ++ if (arg) ++ goto out_unlock; ++ ++ bindex = wbi + 1; ++ wbi = -1; ++ for (; bindex <= bbot; bindex++) { ++ br = au_sbr(sb, bindex); ++ if (au_br_writable(br->br_perm)) { ++ wbi = bindex; ++ br = au_sbr(sb, wbi); ++ break; ++ } ++ } ++ } ++ AuDbg("wbi %d\n", wbi); ++ if (wbi >= 0) ++ h_file = au_h_open(root, wbi, wbrfd.oflags, NULL, ++ /*force_wr*/0); ++ ++out_unlock: ++ aufs_read_unlock(root, AuLock_IR); ++ err = PTR_ERR(h_file); ++ if (IS_ERR(h_file)) ++ goto out_fd; ++ ++ au_lcnt_dec(&br->br_nfiles); /* cf. au_h_open() */ ++ fd_install(fd, h_file); ++ err = fd; ++ goto out; /* success */ ++ ++out_fd: ++ put_unused_fd(fd); ++out: ++ AuTraceErr(err); ++ return err; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++long aufs_ioctl_dir(struct file *file, unsigned int cmd, unsigned long arg) ++{ ++ long err; ++ struct dentry *dentry; ++ ++ switch (cmd) { ++ case AUFS_CTL_RDU: ++ case AUFS_CTL_RDU_INO: ++ err = au_rdu_ioctl(file, cmd, arg); ++ break; ++ ++ case AUFS_CTL_WBR_FD: ++ err = au_wbr_fd(&file->f_path, (void __user *)arg); ++ break; ++ ++ case AUFS_CTL_IBUSY: ++ err = au_ibusy_ioctl(file, arg); ++ break; ++ ++ case AUFS_CTL_BRINFO: ++ err = au_brinfo_ioctl(file, arg); ++ break; ++ ++ case AUFS_CTL_FHSM_FD: ++ dentry = file->f_path.dentry; ++ if (IS_ROOT(dentry)) ++ err = au_fhsm_fd(dentry->d_sb, arg); ++ else ++ err = -ENOTTY; ++ break; ++ ++ default: ++ /* do not call the lower */ ++ AuDbg("0x%x\n", cmd); ++ err = -ENOTTY; ++ } ++ ++ AuTraceErr(err); ++ return err; ++} ++ ++long aufs_ioctl_nondir(struct file *file, unsigned int cmd, unsigned long arg) ++{ ++ long err; ++ ++ switch (cmd) { ++ case AUFS_CTL_MVDOWN: ++ err = au_mvdown(file->f_path.dentry, (void __user *)arg); ++ break; ++ ++ case AUFS_CTL_WBR_FD: ++ err = au_wbr_fd(&file->f_path, (void __user *)arg); ++ break; ++ ++ default: ++ /* do not call the lower */ ++ AuDbg("0x%x\n", cmd); ++ err = -ENOTTY; ++ } ++ ++ AuTraceErr(err); ++ return err; ++} ++ ++#ifdef CONFIG_COMPAT ++long aufs_compat_ioctl_dir(struct file *file, unsigned int cmd, ++ unsigned long arg) ++{ ++ long err; ++ ++ switch (cmd) { ++ case AUFS_CTL_RDU: ++ case AUFS_CTL_RDU_INO: ++ err = au_rdu_compat_ioctl(file, cmd, arg); ++ break; ++ ++ case AUFS_CTL_IBUSY: ++ err = au_ibusy_compat_ioctl(file, arg); ++ break; ++ ++ case AUFS_CTL_BRINFO: ++ err = au_brinfo_compat_ioctl(file, arg); ++ break; ++ ++ default: ++ err = aufs_ioctl_dir(file, cmd, arg); ++ } ++ ++ AuTraceErr(err); ++ return err; ++} ++ ++long aufs_compat_ioctl_nondir(struct file *file, unsigned int cmd, ++ unsigned long arg) ++{ ++ return aufs_ioctl_nondir(file, cmd, (unsigned long)compat_ptr(arg)); ++} ++#endif +diff -Naur linux-5.15/fs/aufs/i_op_add.c aufs5-linux-aufs5.15/fs/aufs/i_op_add.c +--- linux-5.15/fs/aufs/i_op_add.c 1970-01-01 03:00:00.000000000 +0300 ++++ aufs5-linux-aufs5.15/fs/aufs/i_op_add.c 2022-03-07 13:48:09.000000000 +0300 +@@ -0,0 +1,928 @@ ++// SPDX-License-Identifier: GPL-2.0 ++/* ++ * Copyright (C) 2005-2021 Junjiro R. Okajima ++ */ ++ ++/* ++ * inode operations (add entry) ++ */ ++ ++#include ++#include "aufs.h" ++ ++/* ++ * final procedure of adding a new entry, except link(2). ++ * remove whiteout, instantiate, copyup the parent dir's times and size ++ * and update version. ++ * if it failed, re-create the removed whiteout. ++ */ ++static int epilog(struct inode *dir, aufs_bindex_t bindex, ++ struct dentry *wh_dentry, struct dentry *dentry) ++{ ++ int err, rerr; ++ aufs_bindex_t bwh; ++ struct path h_path; ++ struct super_block *sb; ++ struct inode *inode, *h_dir; ++ struct dentry *wh; ++ ++ bwh = -1; ++ sb = dir->i_sb; ++ if (wh_dentry) { ++ h_dir = d_inode(wh_dentry->d_parent); /* dir inode is locked */ ++ IMustLock(h_dir); ++ AuDebugOn(au_h_iptr(dir, bindex) != h_dir); ++ bwh = au_dbwh(dentry); ++ h_path.dentry = wh_dentry; ++ h_path.mnt = au_sbr_mnt(sb, bindex); ++ err = au_wh_unlink_dentry(au_h_iptr(dir, bindex), &h_path, ++ dentry); ++ if (unlikely(err)) ++ goto out; ++ } ++ ++ inode = au_new_inode(dentry, /*must_new*/1); ++ if (!IS_ERR(inode)) { ++ d_instantiate(dentry, inode); ++ dir = d_inode(dentry->d_parent); /* dir inode is locked */ ++ IMustLock(dir); ++ au_dir_ts(dir, bindex); ++ inode_inc_iversion(dir); ++ au_fhsm_wrote(sb, bindex, /*force*/0); ++ return 0; /* success */ ++ } ++ ++ err = PTR_ERR(inode); ++ if (!wh_dentry) ++ goto out; ++ ++ /* revert */ ++ /* dir inode is locked */ ++ wh = au_wh_create(dentry, bwh, wh_dentry->d_parent); ++ rerr = PTR_ERR(wh); ++ if (IS_ERR(wh)) { ++ AuIOErr("%pd reverting whiteout failed(%d, %d)\n", ++ dentry, err, rerr); ++ err = -EIO; ++ } else ++ dput(wh); ++ ++out: ++ return err; ++} ++ ++static int au_d_may_add(struct dentry *dentry) ++{ ++ int err; ++ ++ err = 0; ++ if (unlikely(d_unhashed(dentry))) ++ err = -ENOENT; ++ if (unlikely(d_really_is_positive(dentry))) ++ err = -EEXIST; ++ return err; ++} ++ ++/* ++ * simple tests for the adding inode operations. ++ * following the checks in vfs, plus the parent-child relationship. ++ */ ++int au_may_add(struct dentry *dentry, aufs_bindex_t bindex, ++ struct dentry *h_parent, int isdir) ++{ ++ int err; ++ umode_t h_mode; ++ struct dentry *h_dentry; ++ struct inode *h_inode; ++ ++ err = -ENAMETOOLONG; ++ if (unlikely(dentry->d_name.len > AUFS_MAX_NAMELEN)) ++ goto out; ++ ++ h_dentry = au_h_dptr(dentry, bindex); ++ if (d_really_is_negative(dentry)) { ++ err = -EEXIST; ++ if (unlikely(d_is_positive(h_dentry))) ++ goto out; ++ } else { ++ /* rename(2) case */ ++ err = -EIO; ++ if (unlikely(d_is_negative(h_dentry))) ++ goto out; ++ h_inode = d_inode(h_dentry); ++ if (unlikely(!h_inode->i_nlink)) ++ goto out; ++ ++ h_mode = h_inode->i_mode; ++ if (!isdir) { ++ err = -EISDIR; ++ if (unlikely(S_ISDIR(h_mode))) ++ goto out; ++ } else if (unlikely(!S_ISDIR(h_mode))) { ++ err = -ENOTDIR; ++ goto out; ++ } ++ } ++ ++ err = 0; ++ /* expected parent dir is locked */ ++ if (unlikely(h_parent != h_dentry->d_parent)) ++ err = -EIO; ++ ++out: ++ AuTraceErr(err); ++ return err; ++} ++ ++/* ++ * initial procedure of adding a new entry. ++ * prepare writable branch and the parent dir, lock it, ++ * and lookup whiteout for the new entry. ++ */ ++static struct dentry* ++lock_hdir_lkup_wh(struct dentry *dentry, struct au_dtime *dt, ++ struct dentry *src_dentry, struct au_pin *pin, ++ struct au_wr_dir_args *wr_dir_args) ++{ ++ struct dentry *wh_dentry, *h_parent; ++ struct super_block *sb; ++ struct au_branch *br; ++ int err; ++ unsigned int udba; ++ aufs_bindex_t bcpup; ++ ++ AuDbg("%pd\n", dentry); ++ ++ err = au_wr_dir(dentry, src_dentry, wr_dir_args); ++ bcpup = err; ++ wh_dentry = ERR_PTR(err); ++ if (unlikely(err < 0)) ++ goto out; ++ ++ sb = dentry->d_sb; ++ udba = au_opt_udba(sb); ++ err = au_pin(pin, dentry, bcpup, udba, ++ AuPin_DI_LOCKED | AuPin_MNT_WRITE); ++ wh_dentry = ERR_PTR(err); ++ if (unlikely(err)) ++ goto out; ++ ++ h_parent = au_pinned_h_parent(pin); ++ if (udba != AuOpt_UDBA_NONE ++ && au_dbtop(dentry) == bcpup) ++ err = au_may_add(dentry, bcpup, h_parent, ++ au_ftest_wrdir(wr_dir_args->flags, ISDIR)); ++ else if (unlikely(dentry->d_name.len > AUFS_MAX_NAMELEN)) ++ err = -ENAMETOOLONG; ++ wh_dentry = ERR_PTR(err); ++ if (unlikely(err)) ++ goto out_unpin; ++ ++ br = au_sbr(sb, bcpup); ++ if (dt) { ++ struct path tmp = { ++ .dentry = h_parent, ++ .mnt = au_br_mnt(br) ++ }; ++ au_dtime_store(dt, au_pinned_parent(pin), &tmp); ++ } ++ ++ wh_dentry = NULL; ++ if (bcpup != au_dbwh(dentry)) ++ goto out; /* success */ ++ ++ /* ++ * ENAMETOOLONG here means that if we allowed create such name, then it ++ * would not be able to removed in the future. So we don't allow such ++ * name here and we don't handle ENAMETOOLONG differently here. ++ */ ++ wh_dentry = au_wh_lkup(h_parent, &dentry->d_name, br); ++ ++out_unpin: ++ if (IS_ERR(wh_dentry)) ++ au_unpin(pin); ++out: ++ return wh_dentry; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++enum { Mknod, Symlink, Creat }; ++struct simple_arg { ++ int type; ++ union { ++ struct { ++ umode_t mode; ++ bool want_excl; ++ bool try_aopen; ++ struct vfsub_aopen_args *aopen; ++ } c; ++ struct { ++ const char *symname; ++ } s; ++ struct { ++ umode_t mode; ++ dev_t dev; ++ } m; ++ } u; ++}; ++ ++static int add_simple(struct inode *dir, struct dentry *dentry, ++ struct simple_arg *arg) ++{ ++ int err, rerr; ++ aufs_bindex_t btop; ++ unsigned char created; ++ const unsigned char try_aopen ++ = (arg->type == Creat && arg->u.c.try_aopen); ++ struct vfsub_aopen_args *aopen = arg->u.c.aopen; ++ struct dentry *wh_dentry, *parent; ++ struct inode *h_dir; ++ struct super_block *sb; ++ struct au_branch *br; ++ /* to reduce stack size */ ++ struct { ++ struct au_dtime dt; ++ struct au_pin pin; ++ struct path h_path; ++ struct au_wr_dir_args wr_dir_args; ++ } *a; ++ ++ AuDbg("%pd\n", dentry); ++ IMustLock(dir); ++ ++ err = -ENOMEM; ++ a = kmalloc(sizeof(*a), GFP_NOFS); ++ if (unlikely(!a)) ++ goto out; ++ a->wr_dir_args.force_btgt = -1; ++ a->wr_dir_args.flags = AuWrDir_ADD_ENTRY; ++ ++ parent = dentry->d_parent; /* dir inode is locked */ ++ if (!try_aopen) { ++ err = aufs_read_lock(dentry, AuLock_DW | AuLock_GEN); ++ if (unlikely(err)) ++ goto out_free; ++ } ++ err = au_d_may_add(dentry); ++ if (unlikely(err)) ++ goto out_unlock; ++ if (!try_aopen) ++ di_write_lock_parent(parent); ++ wh_dentry = lock_hdir_lkup_wh(dentry, &a->dt, /*src_dentry*/NULL, ++ &a->pin, &a->wr_dir_args); ++ err = PTR_ERR(wh_dentry); ++ if (IS_ERR(wh_dentry)) ++ goto out_parent; ++ ++ btop = au_dbtop(dentry); ++ sb = dentry->d_sb; ++ br = au_sbr(sb, btop); ++ a->h_path.dentry = au_h_dptr(dentry, btop); ++ a->h_path.mnt = au_br_mnt(br); ++ h_dir = au_pinned_h_dir(&a->pin); ++ switch (arg->type) { ++ case Creat: ++ if (!try_aopen || !h_dir->i_op->atomic_open) { ++ err = vfsub_create(h_dir, &a->h_path, arg->u.c.mode, ++ arg->u.c.want_excl); ++ created = !err; ++ if (!err && try_aopen) ++ aopen->file->f_mode |= FMODE_CREATED; ++ } else { ++ aopen->br = br; ++ err = vfsub_atomic_open(h_dir, a->h_path.dentry, aopen); ++ AuDbg("err %d\n", err); ++ AuDbgFile(aopen->file); ++ created = err >= 0 ++ && !!(aopen->file->f_mode & FMODE_CREATED); ++ } ++ break; ++ case Symlink: ++ err = vfsub_symlink(h_dir, &a->h_path, arg->u.s.symname); ++ created = !err; ++ break; ++ case Mknod: ++ err = vfsub_mknod(h_dir, &a->h_path, arg->u.m.mode, ++ arg->u.m.dev); ++ created = !err; ++ break; ++ default: ++ BUG(); ++ } ++ if (unlikely(err < 0)) ++ goto out_unpin; ++ ++ err = epilog(dir, btop, wh_dentry, dentry); ++ if (!err) ++ goto out_unpin; /* success */ ++ ++ /* revert */ ++ if (created /* && d_is_positive(a->h_path.dentry) */) { ++ /* no delegation since it is just created */ ++ rerr = vfsub_unlink(h_dir, &a->h_path, /*delegated*/NULL, ++ /*force*/0); ++ if (rerr) { ++ AuIOErr("%pd revert failure(%d, %d)\n", ++ dentry, err, rerr); ++ err = -EIO; ++ } ++ au_dtime_revert(&a->dt); ++ } ++ if (try_aopen && h_dir->i_op->atomic_open ++ && (aopen->file->f_mode & FMODE_OPENED)) ++ /* aopen->file is still opened */ ++ au_lcnt_dec(&aopen->br->br_nfiles); ++ ++out_unpin: ++ au_unpin(&a->pin); ++ dput(wh_dentry); ++out_parent: ++ if (!try_aopen) ++ di_write_unlock(parent); ++out_unlock: ++ if (unlikely(err)) { ++ au_update_dbtop(dentry); ++ d_drop(dentry); ++ } ++ if (!try_aopen) ++ aufs_read_unlock(dentry, AuLock_DW); ++out_free: ++ au_kfree_rcu(a); ++out: ++ return err; ++} ++ ++int aufs_mknod(struct user_namespace *userns, struct inode *dir, ++ struct dentry *dentry, umode_t mode, dev_t dev) ++{ ++ struct simple_arg arg = { ++ .type = Mknod, ++ .u.m = { ++ .mode = mode, ++ .dev = dev ++ } ++ }; ++ return add_simple(dir, dentry, &arg); ++} ++ ++int aufs_symlink(struct user_namespace *userns, struct inode *dir, ++ struct dentry *dentry, const char *symname) ++{ ++ struct simple_arg arg = { ++ .type = Symlink, ++ .u.s.symname = symname ++ }; ++ return add_simple(dir, dentry, &arg); ++} ++ ++int aufs_create(struct user_namespace *userns, struct inode *dir, ++ struct dentry *dentry, umode_t mode, bool want_excl) ++{ ++ struct simple_arg arg = { ++ .type = Creat, ++ .u.c = { ++ .mode = mode, ++ .want_excl = want_excl ++ } ++ }; ++ return add_simple(dir, dentry, &arg); ++} ++ ++int au_aopen_or_create(struct inode *dir, struct dentry *dentry, ++ struct vfsub_aopen_args *aopen_args) ++{ ++ struct simple_arg arg = { ++ .type = Creat, ++ .u.c = { ++ .mode = aopen_args->create_mode, ++ .want_excl = aopen_args->open_flag & O_EXCL, ++ .try_aopen = true, ++ .aopen = aopen_args ++ } ++ }; ++ return add_simple(dir, dentry, &arg); ++} ++ ++int aufs_tmpfile(struct user_namespace *userns, struct inode *dir, ++ struct dentry *dentry, umode_t mode) ++{ ++ int err; ++ aufs_bindex_t bindex; ++ struct super_block *sb; ++ struct dentry *parent, *h_parent, *h_dentry; ++ struct inode *h_dir, *inode; ++ struct vfsmount *h_mnt; ++ struct user_namespace *h_userns; ++ struct au_wr_dir_args wr_dir_args = { ++ .force_btgt = -1, ++ .flags = AuWrDir_TMPFILE ++ }; ++ ++ /* copy-up may happen */ ++ inode_lock(dir); ++ ++ sb = dir->i_sb; ++ err = si_read_lock(sb, AuLock_FLUSH | AuLock_NOPLM); ++ if (unlikely(err)) ++ goto out; ++ ++ err = au_di_init(dentry); ++ if (unlikely(err)) ++ goto out_si; ++ ++ err = -EBUSY; ++ parent = d_find_any_alias(dir); ++ AuDebugOn(!parent); ++ di_write_lock_parent(parent); ++ if (unlikely(d_inode(parent) != dir)) ++ goto out_parent; ++ ++ err = au_digen_test(parent, au_sigen(sb)); ++ if (unlikely(err)) ++ goto out_parent; ++ ++ bindex = au_dbtop(parent); ++ au_set_dbtop(dentry, bindex); ++ au_set_dbbot(dentry, bindex); ++ err = au_wr_dir(dentry, /*src_dentry*/NULL, &wr_dir_args); ++ bindex = err; ++ if (unlikely(err < 0)) ++ goto out_parent; ++ ++ err = -EOPNOTSUPP; ++ h_dir = au_h_iptr(dir, bindex); ++ if (unlikely(!h_dir->i_op->tmpfile)) ++ goto out_parent; ++ ++ h_mnt = au_sbr_mnt(sb, bindex); ++ err = vfsub_mnt_want_write(h_mnt); ++ if (unlikely(err)) ++ goto out_parent; ++ ++ h_userns = mnt_user_ns(h_mnt); ++ h_parent = au_h_dptr(parent, bindex); ++ h_dentry = vfs_tmpfile(h_userns, h_parent, mode, /*open_flag*/0); ++ if (IS_ERR(h_dentry)) { ++ err = PTR_ERR(h_dentry); ++ goto out_mnt; ++ } ++ ++ au_set_dbtop(dentry, bindex); ++ au_set_dbbot(dentry, bindex); ++ au_set_h_dptr(dentry, bindex, dget(h_dentry)); ++ inode = au_new_inode(dentry, /*must_new*/1); ++ if (IS_ERR(inode)) { ++ err = PTR_ERR(inode); ++ au_set_h_dptr(dentry, bindex, NULL); ++ au_set_dbtop(dentry, -1); ++ au_set_dbbot(dentry, -1); ++ } else { ++ if (!inode->i_nlink) ++ set_nlink(inode, 1); ++ d_tmpfile(dentry, inode); ++ au_di(dentry)->di_tmpfile = 1; ++ ++ /* update without i_mutex */ ++ if (au_ibtop(dir) == au_dbtop(dentry)) ++ au_cpup_attr_timesizes(dir); ++ } ++ dput(h_dentry); ++ ++out_mnt: ++ vfsub_mnt_drop_write(h_mnt); ++out_parent: ++ di_write_unlock(parent); ++ dput(parent); ++ di_write_unlock(dentry); ++ if (unlikely(err)) { ++ au_di_fin(dentry); ++ dentry->d_fsdata = NULL; ++ } ++out_si: ++ si_read_unlock(sb); ++out: ++ inode_unlock(dir); ++ return err; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++struct au_link_args { ++ aufs_bindex_t bdst, bsrc; ++ struct au_pin pin; ++ struct path h_path; ++ struct dentry *src_parent, *parent; ++}; ++ ++static int au_cpup_before_link(struct dentry *src_dentry, ++ struct au_link_args *a) ++{ ++ int err; ++ struct dentry *h_src_dentry; ++ struct au_cp_generic cpg = { ++ .dentry = src_dentry, ++ .bdst = a->bdst, ++ .bsrc = a->bsrc, ++ .len = -1, ++ .pin = &a->pin, ++ .flags = AuCpup_DTIME | AuCpup_HOPEN /* | AuCpup_KEEPLINO */ ++ }; ++ ++ di_read_lock_parent(a->src_parent, AuLock_IR); ++ err = au_test_and_cpup_dirs(src_dentry, a->bdst); ++ if (unlikely(err)) ++ goto out; ++ ++ h_src_dentry = au_h_dptr(src_dentry, a->bsrc); ++ err = au_pin(&a->pin, src_dentry, a->bdst, ++ au_opt_udba(src_dentry->d_sb), ++ AuPin_DI_LOCKED | AuPin_MNT_WRITE); ++ if (unlikely(err)) ++ goto out; ++ ++ err = au_sio_cpup_simple(&cpg); ++ au_unpin(&a->pin); ++ ++out: ++ di_read_unlock(a->src_parent, AuLock_IR); ++ return err; ++} ++ ++static int au_cpup_or_link(struct dentry *src_dentry, struct dentry *dentry, ++ struct au_link_args *a) ++{ ++ int err; ++ unsigned char plink; ++ aufs_bindex_t bbot; ++ struct dentry *h_src_dentry; ++ struct inode *h_inode, *inode, *delegated; ++ struct super_block *sb; ++ struct file *h_file; ++ ++ plink = 0; ++ h_inode = NULL; ++ sb = src_dentry->d_sb; ++ inode = d_inode(src_dentry); ++ if (au_ibtop(inode) <= a->bdst) ++ h_inode = au_h_iptr(inode, a->bdst); ++ if (!h_inode || !h_inode->i_nlink) { ++ /* copyup src_dentry as the name of dentry. */ ++ bbot = au_dbbot(dentry); ++ if (bbot < a->bsrc) ++ au_set_dbbot(dentry, a->bsrc); ++ au_set_h_dptr(dentry, a->bsrc, ++ dget(au_h_dptr(src_dentry, a->bsrc))); ++ dget(a->h_path.dentry); ++ au_set_h_dptr(dentry, a->bdst, NULL); ++ AuDbg("temporary d_inode...\n"); ++ spin_lock(&dentry->d_lock); ++ dentry->d_inode = d_inode(src_dentry); /* tmp */ ++ spin_unlock(&dentry->d_lock); ++ h_file = au_h_open_pre(dentry, a->bsrc, /*force_wr*/0); ++ if (IS_ERR(h_file)) ++ err = PTR_ERR(h_file); ++ else { ++ struct au_cp_generic cpg = { ++ .dentry = dentry, ++ .bdst = a->bdst, ++ .bsrc = -1, ++ .len = -1, ++ .pin = &a->pin, ++ .flags = AuCpup_KEEPLINO ++ }; ++ err = au_sio_cpup_simple(&cpg); ++ au_h_open_post(dentry, a->bsrc, h_file); ++ if (!err) { ++ dput(a->h_path.dentry); ++ a->h_path.dentry = au_h_dptr(dentry, a->bdst); ++ } else ++ au_set_h_dptr(dentry, a->bdst, ++ a->h_path.dentry); ++ } ++ spin_lock(&dentry->d_lock); ++ dentry->d_inode = NULL; /* restore */ ++ spin_unlock(&dentry->d_lock); ++ AuDbg("temporary d_inode...done\n"); ++ au_set_h_dptr(dentry, a->bsrc, NULL); ++ au_set_dbbot(dentry, bbot); ++ } else { ++ /* the inode of src_dentry already exists on a.bdst branch */ ++ h_src_dentry = d_find_alias(h_inode); ++ if (!h_src_dentry && au_plink_test(inode)) { ++ plink = 1; ++ h_src_dentry = au_plink_lkup(inode, a->bdst); ++ err = PTR_ERR(h_src_dentry); ++ if (IS_ERR(h_src_dentry)) ++ goto out; ++ ++ if (unlikely(d_is_negative(h_src_dentry))) { ++ dput(h_src_dentry); ++ h_src_dentry = NULL; ++ } ++ ++ } ++ if (h_src_dentry) { ++ delegated = NULL; ++ err = vfsub_link(h_src_dentry, au_pinned_h_dir(&a->pin), ++ &a->h_path, &delegated); ++ if (unlikely(err == -EWOULDBLOCK)) { ++ pr_warn("cannot retry for NFSv4 delegation" ++ " for an internal link\n"); ++ iput(delegated); ++ } ++ dput(h_src_dentry); ++ } else { ++ AuIOErr("no dentry found for hi%lu on b%d\n", ++ h_inode->i_ino, a->bdst); ++ err = -EIO; ++ } ++ } ++ ++ if (!err && !plink) ++ au_plink_append(inode, a->bdst, a->h_path.dentry); ++ ++out: ++ AuTraceErr(err); ++ return err; ++} ++ ++int aufs_link(struct dentry *src_dentry, struct inode *dir, ++ struct dentry *dentry) ++{ ++ int err, rerr; ++ struct au_dtime dt; ++ struct au_link_args *a; ++ struct dentry *wh_dentry, *h_src_dentry; ++ struct inode *inode, *delegated; ++ struct super_block *sb; ++ struct au_wr_dir_args wr_dir_args = { ++ /* .force_btgt = -1, */ ++ .flags = AuWrDir_ADD_ENTRY ++ }; ++ ++ IMustLock(dir); ++ inode = d_inode(src_dentry); ++ IMustLock(inode); ++ ++ err = -ENOMEM; ++ a = kzalloc(sizeof(*a), GFP_NOFS); ++ if (unlikely(!a)) ++ goto out; ++ ++ a->parent = dentry->d_parent; /* dir inode is locked */ ++ err = aufs_read_and_write_lock2(dentry, src_dentry, ++ AuLock_NOPLM | AuLock_GEN); ++ if (unlikely(err)) ++ goto out_kfree; ++ err = au_d_linkable(src_dentry); ++ if (unlikely(err)) ++ goto out_unlock; ++ err = au_d_may_add(dentry); ++ if (unlikely(err)) ++ goto out_unlock; ++ ++ a->src_parent = dget_parent(src_dentry); ++ wr_dir_args.force_btgt = au_ibtop(inode); ++ ++ di_write_lock_parent(a->parent); ++ wr_dir_args.force_btgt = au_wbr(dentry, wr_dir_args.force_btgt); ++ wh_dentry = lock_hdir_lkup_wh(dentry, &dt, src_dentry, &a->pin, ++ &wr_dir_args); ++ err = PTR_ERR(wh_dentry); ++ if (IS_ERR(wh_dentry)) ++ goto out_parent; ++ ++ err = 0; ++ sb = dentry->d_sb; ++ a->bdst = au_dbtop(dentry); ++ a->h_path.dentry = au_h_dptr(dentry, a->bdst); ++ a->h_path.mnt = au_sbr_mnt(sb, a->bdst); ++ a->bsrc = au_ibtop(inode); ++ h_src_dentry = au_h_d_alias(src_dentry, a->bsrc); ++ if (!h_src_dentry && au_di(src_dentry)->di_tmpfile) ++ h_src_dentry = dget(au_hi_wh(inode, a->bsrc)); ++ if (!h_src_dentry) { ++ a->bsrc = au_dbtop(src_dentry); ++ h_src_dentry = au_h_d_alias(src_dentry, a->bsrc); ++ AuDebugOn(!h_src_dentry); ++ } else if (IS_ERR(h_src_dentry)) { ++ err = PTR_ERR(h_src_dentry); ++ goto out_parent; ++ } ++ ++ /* ++ * aufs doesn't touch the credential so ++ * security_dentry_create_files_as() is unnecessary. ++ */ ++ if (au_opt_test(au_mntflags(sb), PLINK)) { ++ if (a->bdst < a->bsrc ++ /* && h_src_dentry->d_sb != a->h_path.dentry->d_sb */) ++ err = au_cpup_or_link(src_dentry, dentry, a); ++ else { ++ delegated = NULL; ++ err = vfsub_link(h_src_dentry, au_pinned_h_dir(&a->pin), ++ &a->h_path, &delegated); ++ if (unlikely(err == -EWOULDBLOCK)) { ++ pr_warn("cannot retry for NFSv4 delegation" ++ " for an internal link\n"); ++ iput(delegated); ++ } ++ } ++ dput(h_src_dentry); ++ } else { ++ /* ++ * copyup src_dentry to the branch we process, ++ * and then link(2) to it. ++ */ ++ dput(h_src_dentry); ++ if (a->bdst < a->bsrc ++ /* && h_src_dentry->d_sb != a->h_path.dentry->d_sb */) { ++ au_unpin(&a->pin); ++ di_write_unlock(a->parent); ++ err = au_cpup_before_link(src_dentry, a); ++ di_write_lock_parent(a->parent); ++ if (!err) ++ err = au_pin(&a->pin, dentry, a->bdst, ++ au_opt_udba(sb), ++ AuPin_DI_LOCKED | AuPin_MNT_WRITE); ++ if (unlikely(err)) ++ goto out_wh; ++ } ++ if (!err) { ++ h_src_dentry = au_h_dptr(src_dentry, a->bdst); ++ err = -ENOENT; ++ if (h_src_dentry && d_is_positive(h_src_dentry)) { ++ delegated = NULL; ++ err = vfsub_link(h_src_dentry, ++ au_pinned_h_dir(&a->pin), ++ &a->h_path, &delegated); ++ if (unlikely(err == -EWOULDBLOCK)) { ++ pr_warn("cannot retry" ++ " for NFSv4 delegation" ++ " for an internal link\n"); ++ iput(delegated); ++ } ++ } ++ } ++ } ++ if (unlikely(err)) ++ goto out_unpin; ++ ++ if (wh_dentry) { ++ a->h_path.dentry = wh_dentry; ++ err = au_wh_unlink_dentry(au_pinned_h_dir(&a->pin), &a->h_path, ++ dentry); ++ if (unlikely(err)) ++ goto out_revert; ++ } ++ ++ au_dir_ts(dir, a->bdst); ++ inode_inc_iversion(dir); ++ inc_nlink(inode); ++ inode->i_ctime = dir->i_ctime; ++ d_instantiate(dentry, au_igrab(inode)); ++ if (d_unhashed(a->h_path.dentry)) ++ /* some filesystem calls d_drop() */ ++ d_drop(dentry); ++ /* some filesystems consume an inode even hardlink */ ++ au_fhsm_wrote(sb, a->bdst, /*force*/0); ++ goto out_unpin; /* success */ ++ ++out_revert: ++ /* no delegation since it is just created */ ++ rerr = vfsub_unlink(au_pinned_h_dir(&a->pin), &a->h_path, ++ /*delegated*/NULL, /*force*/0); ++ if (unlikely(rerr)) { ++ AuIOErr("%pd reverting failed(%d, %d)\n", dentry, err, rerr); ++ err = -EIO; ++ } ++ au_dtime_revert(&dt); ++out_unpin: ++ au_unpin(&a->pin); ++out_wh: ++ dput(wh_dentry); ++out_parent: ++ di_write_unlock(a->parent); ++ dput(a->src_parent); ++out_unlock: ++ if (unlikely(err)) { ++ au_update_dbtop(dentry); ++ d_drop(dentry); ++ } ++ aufs_read_and_write_unlock2(dentry, src_dentry); ++out_kfree: ++ au_kfree_rcu(a); ++out: ++ AuTraceErr(err); ++ return err; ++} ++ ++int aufs_mkdir(struct user_namespace *userns, struct inode *dir, ++ struct dentry *dentry, umode_t mode) ++{ ++ int err, rerr; ++ aufs_bindex_t bindex; ++ unsigned char diropq; ++ struct path h_path; ++ struct dentry *wh_dentry, *parent, *opq_dentry; ++ struct inode *h_inode; ++ struct super_block *sb; ++ struct { ++ struct au_pin pin; ++ struct au_dtime dt; ++ } *a; /* reduce the stack usage */ ++ struct au_wr_dir_args wr_dir_args = { ++ .force_btgt = -1, ++ .flags = AuWrDir_ADD_ENTRY | AuWrDir_ISDIR ++ }; ++ ++ IMustLock(dir); ++ ++ err = -ENOMEM; ++ a = kmalloc(sizeof(*a), GFP_NOFS); ++ if (unlikely(!a)) ++ goto out; ++ ++ err = aufs_read_lock(dentry, AuLock_DW | AuLock_GEN); ++ if (unlikely(err)) ++ goto out_free; ++ err = au_d_may_add(dentry); ++ if (unlikely(err)) ++ goto out_unlock; ++ ++ parent = dentry->d_parent; /* dir inode is locked */ ++ di_write_lock_parent(parent); ++ wh_dentry = lock_hdir_lkup_wh(dentry, &a->dt, /*src_dentry*/NULL, ++ &a->pin, &wr_dir_args); ++ err = PTR_ERR(wh_dentry); ++ if (IS_ERR(wh_dentry)) ++ goto out_parent; ++ ++ sb = dentry->d_sb; ++ bindex = au_dbtop(dentry); ++ h_path.dentry = au_h_dptr(dentry, bindex); ++ h_path.mnt = au_sbr_mnt(sb, bindex); ++ err = vfsub_mkdir(au_pinned_h_dir(&a->pin), &h_path, mode); ++ if (unlikely(err)) ++ goto out_unpin; ++ ++ /* make the dir opaque */ ++ diropq = 0; ++ h_inode = d_inode(h_path.dentry); ++ if (wh_dentry ++ || au_opt_test(au_mntflags(sb), ALWAYS_DIROPQ)) { ++ inode_lock_nested(h_inode, AuLsc_I_CHILD); ++ opq_dentry = au_diropq_create(dentry, bindex); ++ inode_unlock(h_inode); ++ err = PTR_ERR(opq_dentry); ++ if (IS_ERR(opq_dentry)) ++ goto out_dir; ++ dput(opq_dentry); ++ diropq = 1; ++ } ++ ++ err = epilog(dir, bindex, wh_dentry, dentry); ++ if (!err) { ++ inc_nlink(dir); ++ goto out_unpin; /* success */ ++ } ++ ++ /* revert */ ++ if (diropq) { ++ AuLabel(revert opq); ++ inode_lock_nested(h_inode, AuLsc_I_CHILD); ++ rerr = au_diropq_remove(dentry, bindex); ++ inode_unlock(h_inode); ++ if (rerr) { ++ AuIOErr("%pd reverting diropq failed(%d, %d)\n", ++ dentry, err, rerr); ++ err = -EIO; ++ } ++ } ++ ++out_dir: ++ AuLabel(revert dir); ++ rerr = vfsub_rmdir(au_pinned_h_dir(&a->pin), &h_path); ++ if (rerr) { ++ AuIOErr("%pd reverting dir failed(%d, %d)\n", ++ dentry, err, rerr); ++ err = -EIO; ++ } ++ au_dtime_revert(&a->dt); ++out_unpin: ++ au_unpin(&a->pin); ++ dput(wh_dentry); ++out_parent: ++ di_write_unlock(parent); ++out_unlock: ++ if (unlikely(err)) { ++ au_update_dbtop(dentry); ++ d_drop(dentry); ++ } ++ aufs_read_unlock(dentry, AuLock_DW); ++out_free: ++ au_kfree_rcu(a); ++out: ++ return err; ++} +diff -Naur linux-5.15/fs/aufs/i_op.c aufs5-linux-aufs5.15/fs/aufs/i_op.c +--- linux-5.15/fs/aufs/i_op.c 1970-01-01 03:00:00.000000000 +0300 ++++ aufs5-linux-aufs5.15/fs/aufs/i_op.c 2022-03-07 13:48:09.000000000 +0300 +@@ -0,0 +1,1499 @@ ++// SPDX-License-Identifier: GPL-2.0 ++/* ++ * Copyright (C) 2005-2021 Junjiro R. Okajima ++ */ ++ ++/* ++ * inode operations (except add/del/rename) ++ */ ++ ++#include ++#include ++#include ++#include ++#include "aufs.h" ++ ++static int h_permission(struct inode *h_inode, int mask, ++ struct path *h_path, int brperm) ++{ ++ int err; ++ const unsigned char write_mask = !!(mask & (MAY_WRITE | MAY_APPEND)); ++ struct user_namespace *h_userns; ++ ++ err = -EPERM; ++ if (write_mask && IS_IMMUTABLE(h_inode)) ++ goto out; ++ ++ err = -EACCES; ++ if (((mask & MAY_EXEC) ++ && S_ISREG(h_inode->i_mode) ++ && (path_noexec(h_path) ++ || !(h_inode->i_mode & 0111)))) ++ goto out; ++ ++ /* ++ * - skip the lower fs test in the case of write to ro branch. ++ * - nfs dir permission write check is optimized, but a policy for ++ * link/rename requires a real check. ++ * - nfs always sets SB_POSIXACL regardless its mount option 'noacl.' ++ * in this case, generic_permission() returns -EOPNOTSUPP. ++ */ ++ h_userns = mnt_user_ns(h_path->mnt); ++ if ((write_mask && !au_br_writable(brperm)) ++ || (au_test_nfs(h_inode->i_sb) && S_ISDIR(h_inode->i_mode) ++ && write_mask && !(mask & MAY_READ)) ++ || !h_inode->i_op->permission) { ++ /* AuLabel(generic_permission); */ ++ /* AuDbg("get_acl %ps\n", h_inode->i_op->get_acl); */ ++ err = generic_permission(h_userns, h_inode, mask); ++ if (err == -EOPNOTSUPP && au_test_nfs_noacl(h_inode)) ++ err = h_inode->i_op->permission(h_userns, h_inode, ++ mask); ++ AuTraceErr(err); ++ } else { ++ /* AuLabel(h_inode->permission); */ ++ err = h_inode->i_op->permission(h_userns, h_inode, mask); ++ AuTraceErr(err); ++ } ++ ++ if (!err) ++ err = devcgroup_inode_permission(h_inode, mask); ++ if (!err) ++ err = security_inode_permission(h_inode, mask); ++ ++out: ++ return err; ++} ++ ++static int aufs_permission(struct user_namespace *userns, struct inode *inode, ++ int mask) ++{ ++ int err; ++ aufs_bindex_t bindex, bbot; ++ const unsigned char isdir = !!S_ISDIR(inode->i_mode), ++ write_mask = !!(mask & (MAY_WRITE | MAY_APPEND)); ++ struct inode *h_inode; ++ struct super_block *sb; ++ struct au_branch *br; ++ ++ /* todo: support rcu-walk? */ ++ if (mask & MAY_NOT_BLOCK) ++ return -ECHILD; ++ ++ sb = inode->i_sb; ++ si_read_lock(sb, AuLock_FLUSH); ++ ii_read_lock_child(inode); ++#if 0 /* reserved for future use */ ++ /* ++ * This test may be rather 'too much' since the test is essentially done ++ * in the aufs_lookup(). Theoretically it is possible that the inode ++ * generation doesn't match to the superblock's here. But it isn't a ++ * big deal I suppose. ++ */ ++ err = au_iigen_test(inode, au_sigen(sb)); ++ if (unlikely(err)) ++ goto out; ++#endif ++ ++ if (!isdir ++ || write_mask ++ || au_opt_test(au_mntflags(sb), DIRPERM1)) { ++ err = au_busy_or_stale(); ++ h_inode = au_h_iptr(inode, au_ibtop(inode)); ++ if (unlikely(!h_inode ++ || (h_inode->i_mode & S_IFMT) ++ != (inode->i_mode & S_IFMT))) ++ goto out; ++ ++ err = 0; ++ bindex = au_ibtop(inode); ++ br = au_sbr(sb, bindex); ++ err = h_permission(h_inode, mask, &br->br_path, br->br_perm); ++ if (write_mask ++ && !err ++ && !special_file(h_inode->i_mode)) { ++ /* test whether the upper writable branch exists */ ++ err = -EROFS; ++ for (; bindex >= 0; bindex--) ++ if (!au_br_rdonly(au_sbr(sb, bindex))) { ++ err = 0; ++ break; ++ } ++ } ++ goto out; ++ } ++ ++ /* non-write to dir */ ++ err = 0; ++ bbot = au_ibbot(inode); ++ for (bindex = au_ibtop(inode); !err && bindex <= bbot; bindex++) { ++ h_inode = au_h_iptr(inode, bindex); ++ if (h_inode) { ++ err = au_busy_or_stale(); ++ if (unlikely(!S_ISDIR(h_inode->i_mode))) ++ break; ++ ++ br = au_sbr(sb, bindex); ++ err = h_permission(h_inode, mask, &br->br_path, ++ br->br_perm); ++ } ++ } ++ ++out: ++ ii_read_unlock(inode); ++ si_read_unlock(sb); ++ return err; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++static struct dentry *aufs_lookup(struct inode *dir, struct dentry *dentry, ++ unsigned int flags) ++{ ++ struct dentry *ret, *parent; ++ struct inode *inode; ++ struct super_block *sb; ++ int err, npositive; ++ ++ IMustLock(dir); ++ ++ /* todo: support rcu-walk? */ ++ ret = ERR_PTR(-ECHILD); ++ if (flags & LOOKUP_RCU) ++ goto out; ++ ++ ret = ERR_PTR(-ENAMETOOLONG); ++ if (unlikely(dentry->d_name.len > AUFS_MAX_NAMELEN)) ++ goto out; ++ ++ sb = dir->i_sb; ++ err = si_read_lock(sb, AuLock_FLUSH | AuLock_NOPLM); ++ ret = ERR_PTR(err); ++ if (unlikely(err)) ++ goto out; ++ ++ err = au_di_init(dentry); ++ ret = ERR_PTR(err); ++ if (unlikely(err)) ++ goto out_si; ++ ++ inode = NULL; ++ npositive = 0; /* suppress a warning */ ++ parent = dentry->d_parent; /* dir inode is locked */ ++ di_read_lock_parent(parent, AuLock_IR); ++ err = au_alive_dir(parent); ++ if (!err) ++ err = au_digen_test(parent, au_sigen(sb)); ++ if (!err) { ++ /* regardless LOOKUP_CREATE, always ALLOW_NEG */ ++ npositive = au_lkup_dentry(dentry, au_dbtop(parent), ++ AuLkup_ALLOW_NEG); ++ err = npositive; ++ } ++ di_read_unlock(parent, AuLock_IR); ++ ret = ERR_PTR(err); ++ if (unlikely(err < 0)) ++ goto out_unlock; ++ ++ if (npositive) { ++ inode = au_new_inode(dentry, /*must_new*/0); ++ if (IS_ERR(inode)) { ++ ret = (void *)inode; ++ inode = NULL; ++ goto out_unlock; ++ } ++ } ++ ++ if (inode) ++ atomic_inc(&inode->i_count); ++ ret = d_splice_alias(inode, dentry); ++#if 0 /* reserved for future use */ ++ if (unlikely(d_need_lookup(dentry))) { ++ spin_lock(&dentry->d_lock); ++ dentry->d_flags &= ~DCACHE_NEED_LOOKUP; ++ spin_unlock(&dentry->d_lock); ++ } else ++#endif ++ if (inode) { ++ if (!IS_ERR(ret)) { ++ iput(inode); ++ if (ret && ret != dentry) ++ ii_write_unlock(inode); ++ } else { ++ ii_write_unlock(inode); ++ iput(inode); ++ inode = NULL; ++ } ++ } ++ ++out_unlock: ++ di_write_unlock(dentry); ++out_si: ++ si_read_unlock(sb); ++out: ++ return ret; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++/* ++ * very dirty and complicated aufs ->atomic_open(). ++ * aufs_atomic_open() ++ * + au_aopen_or_create() ++ * + add_simple() ++ * + vfsub_atomic_open() ++ * + branch fs ->atomic_open() ++ * may call the actual 'open' for h_file ++ * + inc br_nfiles only if opened ++ * + au_aopen_no_open() or au_aopen_do_open() ++ * ++ * au_aopen_do_open() ++ * + finish_open() ++ * + au_do_aopen() ++ * + au_do_open() the body of all 'open' ++ * + au_do_open_nondir() ++ * set the passed h_file ++ * ++ * au_aopen_no_open() ++ * + finish_no_open() ++ */ ++ ++struct aopen_node { ++ struct hlist_bl_node hblist; ++ struct file *file, *h_file; ++}; ++ ++static int au_do_aopen(struct inode *inode, struct file *file) ++{ ++ struct hlist_bl_head *aopen; ++ struct hlist_bl_node *pos; ++ struct aopen_node *node; ++ struct au_do_open_args args = { ++ .aopen = 1, ++ .open = au_do_open_nondir ++ }; ++ ++ aopen = &au_sbi(inode->i_sb)->si_aopen; ++ hlist_bl_lock(aopen); ++ hlist_bl_for_each_entry(node, pos, aopen, hblist) ++ if (node->file == file) { ++ args.h_file = node->h_file; ++ break; ++ } ++ hlist_bl_unlock(aopen); ++ /* AuDebugOn(!args.h_file); */ ++ ++ return au_do_open(file, &args); ++} ++ ++static int au_aopen_do_open(struct file *file, struct dentry *dentry, ++ struct aopen_node *aopen_node) ++{ ++ int err; ++ struct hlist_bl_head *aopen; ++ ++ AuLabel(here); ++ aopen = &au_sbi(dentry->d_sb)->si_aopen; ++ au_hbl_add(&aopen_node->hblist, aopen); ++ err = finish_open(file, dentry, au_do_aopen); ++ au_hbl_del(&aopen_node->hblist, aopen); ++ /* AuDbgFile(file); */ ++ AuDbg("%pd%s%s\n", dentry, ++ (file->f_mode & FMODE_CREATED) ? " created" : "", ++ (file->f_mode & FMODE_OPENED) ? " opened" : ""); ++ ++ AuTraceErr(err); ++ return err; ++} ++ ++static int au_aopen_no_open(struct file *file, struct dentry *dentry) ++{ ++ int err; ++ ++ AuLabel(here); ++ dget(dentry); ++ err = finish_no_open(file, dentry); ++ ++ AuTraceErr(err); ++ return err; ++} ++ ++static int aufs_atomic_open(struct inode *dir, struct dentry *dentry, ++ struct file *file, unsigned int open_flag, ++ umode_t create_mode) ++{ ++ int err, did_open; ++ unsigned int lkup_flags; ++ aufs_bindex_t bindex; ++ struct super_block *sb; ++ struct dentry *parent, *d; ++ struct vfsub_aopen_args args = { ++ .open_flag = open_flag, ++ .create_mode = create_mode ++ }; ++ struct aopen_node aopen_node = { ++ .file = file ++ }; ++ ++ IMustLock(dir); ++ AuDbg("open_flag 0%o\n", open_flag); ++ AuDbgDentry(dentry); ++ ++ err = 0; ++ if (!au_di(dentry)) { ++ lkup_flags = LOOKUP_OPEN; ++ if (open_flag & O_CREAT) ++ lkup_flags |= LOOKUP_CREATE; ++ d = aufs_lookup(dir, dentry, lkup_flags); ++ if (IS_ERR(d)) { ++ err = PTR_ERR(d); ++ AuTraceErr(err); ++ goto out; ++ } else if (d) { ++ /* ++ * obsoleted dentry found. ++ * another error will be returned later. ++ */ ++ d_drop(d); ++ AuDbgDentry(d); ++ dput(d); ++ } ++ AuDbgDentry(dentry); ++ } ++ ++ if (d_is_positive(dentry) ++ || d_unhashed(dentry) ++ || d_unlinked(dentry) ++ || !(open_flag & O_CREAT)) { ++ err = au_aopen_no_open(file, dentry); ++ goto out; /* success */ ++ } ++ ++ err = aufs_read_lock(dentry, AuLock_DW | AuLock_FLUSH | AuLock_GEN); ++ if (unlikely(err)) ++ goto out; ++ ++ sb = dentry->d_sb; ++ parent = dentry->d_parent; /* dir is locked */ ++ di_write_lock_parent(parent); ++ err = au_lkup_dentry(dentry, /*btop*/0, AuLkup_ALLOW_NEG); ++ if (unlikely(err < 0)) ++ goto out_parent; ++ ++ AuDbgDentry(dentry); ++ if (d_is_positive(dentry)) { ++ err = au_aopen_no_open(file, dentry); ++ goto out_parent; /* success */ ++ } ++ ++ args.file = alloc_empty_file(file->f_flags, current_cred()); ++ err = PTR_ERR(args.file); ++ if (IS_ERR(args.file)) ++ goto out_parent; ++ ++ bindex = au_dbtop(dentry); ++ err = au_aopen_or_create(dir, dentry, &args); ++ AuTraceErr(err); ++ AuDbgFile(args.file); ++ file->f_mode = args.file->f_mode & ~FMODE_OPENED; ++ did_open = !!(args.file->f_mode & FMODE_OPENED); ++ if (!did_open) { ++ fput(args.file); ++ args.file = NULL; ++ } ++ di_write_unlock(parent); ++ di_write_unlock(dentry); ++ if (unlikely(err < 0)) { ++ if (args.file) ++ fput(args.file); ++ goto out_sb; ++ } ++ ++ if (!did_open) ++ err = au_aopen_no_open(file, dentry); ++ else { ++ aopen_node.h_file = args.file; ++ err = au_aopen_do_open(file, dentry, &aopen_node); ++ } ++ if (unlikely(err < 0)) { ++ if (args.file) ++ fput(args.file); ++ if (did_open) ++ au_lcnt_dec(&args.br->br_nfiles); ++ } ++ goto out_sb; /* success */ ++ ++out_parent: ++ di_write_unlock(parent); ++ di_write_unlock(dentry); ++out_sb: ++ si_read_unlock(sb); ++out: ++ AuTraceErr(err); ++ AuDbgFile(file); ++ return err; ++} ++ ++ ++/* ---------------------------------------------------------------------- */ ++ ++static int au_wr_dir_cpup(struct dentry *dentry, struct dentry *parent, ++ const unsigned char add_entry, aufs_bindex_t bcpup, ++ aufs_bindex_t btop) ++{ ++ int err; ++ struct dentry *h_parent; ++ struct inode *h_dir; ++ ++ if (add_entry) ++ IMustLock(d_inode(parent)); ++ else ++ di_write_lock_parent(parent); ++ ++ err = 0; ++ if (!au_h_dptr(parent, bcpup)) { ++ if (btop > bcpup) ++ err = au_cpup_dirs(dentry, bcpup); ++ else if (btop < bcpup) ++ err = au_cpdown_dirs(dentry, bcpup); ++ else ++ BUG(); ++ } ++ if (!err && add_entry && !au_ftest_wrdir(add_entry, TMPFILE)) { ++ h_parent = au_h_dptr(parent, bcpup); ++ h_dir = d_inode(h_parent); ++ inode_lock_shared_nested(h_dir, AuLsc_I_PARENT); ++ err = au_lkup_neg(dentry, bcpup, /*wh*/0); ++ /* todo: no unlock here */ ++ inode_unlock_shared(h_dir); ++ ++ AuDbg("bcpup %d\n", bcpup); ++ if (!err) { ++ if (d_really_is_negative(dentry)) ++ au_set_h_dptr(dentry, btop, NULL); ++ au_update_dbrange(dentry, /*do_put_zero*/0); ++ } ++ } ++ ++ if (!add_entry) ++ di_write_unlock(parent); ++ if (!err) ++ err = bcpup; /* success */ ++ ++ AuTraceErr(err); ++ return err; ++} ++ ++/* ++ * decide the branch and the parent dir where we will create a new entry. ++ * returns new bindex or an error. ++ * copyup the parent dir if needed. ++ */ ++int au_wr_dir(struct dentry *dentry, struct dentry *src_dentry, ++ struct au_wr_dir_args *args) ++{ ++ int err; ++ unsigned int flags; ++ aufs_bindex_t bcpup, btop, src_btop; ++ const unsigned char add_entry ++ = au_ftest_wrdir(args->flags, ADD_ENTRY) ++ | au_ftest_wrdir(args->flags, TMPFILE); ++ struct super_block *sb; ++ struct dentry *parent; ++ struct au_sbinfo *sbinfo; ++ ++ sb = dentry->d_sb; ++ sbinfo = au_sbi(sb); ++ parent = dget_parent(dentry); ++ btop = au_dbtop(dentry); ++ bcpup = btop; ++ if (args->force_btgt < 0) { ++ if (src_dentry) { ++ src_btop = au_dbtop(src_dentry); ++ if (src_btop < btop) ++ bcpup = src_btop; ++ } else if (add_entry) { ++ flags = 0; ++ if (au_ftest_wrdir(args->flags, ISDIR)) ++ au_fset_wbr(flags, DIR); ++ err = AuWbrCreate(sbinfo, dentry, flags); ++ bcpup = err; ++ } ++ ++ if (bcpup < 0 || au_test_ro(sb, bcpup, d_inode(dentry))) { ++ if (add_entry) ++ err = AuWbrCopyup(sbinfo, dentry); ++ else { ++ if (!IS_ROOT(dentry)) { ++ di_read_lock_parent(parent, !AuLock_IR); ++ err = AuWbrCopyup(sbinfo, dentry); ++ di_read_unlock(parent, !AuLock_IR); ++ } else ++ err = AuWbrCopyup(sbinfo, dentry); ++ } ++ bcpup = err; ++ if (unlikely(err < 0)) ++ goto out; ++ } ++ } else { ++ bcpup = args->force_btgt; ++ AuDebugOn(au_test_ro(sb, bcpup, d_inode(dentry))); ++ } ++ ++ AuDbg("btop %d, bcpup %d\n", btop, bcpup); ++ err = bcpup; ++ if (bcpup == btop) ++ goto out; /* success */ ++ ++ /* copyup the new parent into the branch we process */ ++ err = au_wr_dir_cpup(dentry, parent, add_entry, bcpup, btop); ++ if (err >= 0) { ++ if (d_really_is_negative(dentry)) { ++ au_set_h_dptr(dentry, btop, NULL); ++ au_set_dbtop(dentry, bcpup); ++ au_set_dbbot(dentry, bcpup); ++ } ++ AuDebugOn(add_entry ++ && !au_ftest_wrdir(args->flags, TMPFILE) ++ && !au_h_dptr(dentry, bcpup)); ++ } ++ ++out: ++ dput(parent); ++ return err; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++void au_pin_hdir_unlock(struct au_pin *p) ++{ ++ if (p->hdir) ++ au_hn_inode_unlock(p->hdir); ++} ++ ++int au_pin_hdir_lock(struct au_pin *p) ++{ ++ int err; ++ ++ err = 0; ++ if (!p->hdir) ++ goto out; ++ ++ /* even if an error happens later, keep this lock */ ++ au_hn_inode_lock_nested(p->hdir, p->lsc_hi); ++ ++ err = -EBUSY; ++ if (unlikely(p->hdir->hi_inode != d_inode(p->h_parent))) ++ goto out; ++ ++ err = 0; ++ if (p->h_dentry) ++ err = au_h_verify(p->h_dentry, p->udba, p->hdir->hi_inode, ++ p->h_parent, p->br); ++ ++out: ++ return err; ++} ++ ++int au_pin_hdir_relock(struct au_pin *p) ++{ ++ int err, i; ++ struct inode *h_i; ++ struct dentry *h_d[] = { ++ p->h_dentry, ++ p->h_parent ++ }; ++ ++ err = au_pin_hdir_lock(p); ++ if (unlikely(err)) ++ goto out; ++ ++ for (i = 0; !err && i < sizeof(h_d)/sizeof(*h_d); i++) { ++ if (!h_d[i]) ++ continue; ++ if (d_is_positive(h_d[i])) { ++ h_i = d_inode(h_d[i]); ++ err = !h_i->i_nlink; ++ } ++ } ++ ++out: ++ return err; ++} ++ ++static void au_pin_hdir_set_owner(struct au_pin *p, struct task_struct *task) ++{ ++ atomic_long_set(&p->hdir->hi_inode->i_rwsem.owner, (long)task); ++} ++ ++void au_pin_hdir_acquire_nest(struct au_pin *p) ++{ ++ if (p->hdir) { ++ rwsem_acquire_nest(&p->hdir->hi_inode->i_rwsem.dep_map, ++ p->lsc_hi, 0, NULL, _RET_IP_); ++ au_pin_hdir_set_owner(p, current); ++ } ++} ++ ++void au_pin_hdir_release(struct au_pin *p) ++{ ++ if (p->hdir) { ++ au_pin_hdir_set_owner(p, p->task); ++ rwsem_release(&p->hdir->hi_inode->i_rwsem.dep_map, _RET_IP_); ++ } ++} ++ ++struct dentry *au_pinned_h_parent(struct au_pin *pin) ++{ ++ if (pin && pin->parent) ++ return au_h_dptr(pin->parent, pin->bindex); ++ return NULL; ++} ++ ++void au_unpin(struct au_pin *p) ++{ ++ if (p->hdir) ++ au_pin_hdir_unlock(p); ++ if (p->h_mnt && au_ftest_pin(p->flags, MNT_WRITE)) ++ vfsub_mnt_drop_write(p->h_mnt); ++ if (!p->hdir) ++ return; ++ ++ if (!au_ftest_pin(p->flags, DI_LOCKED)) ++ di_read_unlock(p->parent, AuLock_IR); ++ iput(p->hdir->hi_inode); ++ dput(p->parent); ++ p->parent = NULL; ++ p->hdir = NULL; ++ p->h_mnt = NULL; ++ /* do not clear p->task */ ++} ++ ++int au_do_pin(struct au_pin *p) ++{ ++ int err; ++ struct super_block *sb; ++ struct inode *h_dir; ++ ++ err = 0; ++ sb = p->dentry->d_sb; ++ p->br = au_sbr(sb, p->bindex); ++ if (IS_ROOT(p->dentry)) { ++ if (au_ftest_pin(p->flags, MNT_WRITE)) { ++ p->h_mnt = au_br_mnt(p->br); ++ err = vfsub_mnt_want_write(p->h_mnt); ++ if (unlikely(err)) { ++ au_fclr_pin(p->flags, MNT_WRITE); ++ goto out_err; ++ } ++ } ++ goto out; ++ } ++ ++ p->h_dentry = NULL; ++ if (p->bindex <= au_dbbot(p->dentry)) ++ p->h_dentry = au_h_dptr(p->dentry, p->bindex); ++ ++ p->parent = dget_parent(p->dentry); ++ if (!au_ftest_pin(p->flags, DI_LOCKED)) ++ di_read_lock(p->parent, AuLock_IR, p->lsc_di); ++ ++ h_dir = NULL; ++ p->h_parent = au_h_dptr(p->parent, p->bindex); ++ p->hdir = au_hi(d_inode(p->parent), p->bindex); ++ if (p->hdir) ++ h_dir = p->hdir->hi_inode; ++ ++ /* ++ * udba case, or ++ * if DI_LOCKED is not set, then p->parent may be different ++ * and h_parent can be NULL. ++ */ ++ if (unlikely(!p->hdir || !h_dir || !p->h_parent)) { ++ err = -EBUSY; ++ if (!au_ftest_pin(p->flags, DI_LOCKED)) ++ di_read_unlock(p->parent, AuLock_IR); ++ dput(p->parent); ++ p->parent = NULL; ++ goto out_err; ++ } ++ ++ if (au_ftest_pin(p->flags, MNT_WRITE)) { ++ p->h_mnt = au_br_mnt(p->br); ++ err = vfsub_mnt_want_write(p->h_mnt); ++ if (unlikely(err)) { ++ au_fclr_pin(p->flags, MNT_WRITE); ++ if (!au_ftest_pin(p->flags, DI_LOCKED)) ++ di_read_unlock(p->parent, AuLock_IR); ++ dput(p->parent); ++ p->parent = NULL; ++ goto out_err; ++ } ++ } ++ ++ au_igrab(h_dir); ++ err = au_pin_hdir_lock(p); ++ if (!err) ++ goto out; /* success */ ++ ++ au_unpin(p); ++ ++out_err: ++ pr_err("err %d\n", err); ++ err = au_busy_or_stale(); ++out: ++ return err; ++} ++ ++void au_pin_init(struct au_pin *p, struct dentry *dentry, ++ aufs_bindex_t bindex, int lsc_di, int lsc_hi, ++ unsigned int udba, unsigned char flags) ++{ ++ p->dentry = dentry; ++ p->udba = udba; ++ p->lsc_di = lsc_di; ++ p->lsc_hi = lsc_hi; ++ p->flags = flags; ++ p->bindex = bindex; ++ ++ p->parent = NULL; ++ p->hdir = NULL; ++ p->h_mnt = NULL; ++ ++ p->h_dentry = NULL; ++ p->h_parent = NULL; ++ p->br = NULL; ++ p->task = current; ++} ++ ++int au_pin(struct au_pin *pin, struct dentry *dentry, aufs_bindex_t bindex, ++ unsigned int udba, unsigned char flags) ++{ ++ au_pin_init(pin, dentry, bindex, AuLsc_DI_PARENT, AuLsc_I_PARENT2, ++ udba, flags); ++ return au_do_pin(pin); ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++/* ++ * ->setattr() and ->getattr() are called in various cases. ++ * chmod, stat: dentry is revalidated. ++ * fchmod, fstat: file and dentry are not revalidated, additionally they may be ++ * unhashed. ++ * for ->setattr(), ia->ia_file is passed from ftruncate only. ++ */ ++/* todo: consolidate with do_refresh() and simple_reval_dpath() */ ++int au_reval_for_attr(struct dentry *dentry, unsigned int sigen) ++{ ++ int err; ++ struct dentry *parent; ++ ++ err = 0; ++ if (au_digen_test(dentry, sigen)) { ++ parent = dget_parent(dentry); ++ di_read_lock_parent(parent, AuLock_IR); ++ err = au_refresh_dentry(dentry, parent); ++ di_read_unlock(parent, AuLock_IR); ++ dput(parent); ++ } ++ ++ AuTraceErr(err); ++ return err; ++} ++ ++int au_pin_and_icpup(struct dentry *dentry, struct iattr *ia, ++ struct au_icpup_args *a) ++{ ++ int err; ++ loff_t sz; ++ aufs_bindex_t btop, ibtop; ++ struct dentry *hi_wh, *parent; ++ struct inode *inode; ++ struct au_wr_dir_args wr_dir_args = { ++ .force_btgt = -1, ++ .flags = 0 ++ }; ++ ++ if (d_is_dir(dentry)) ++ au_fset_wrdir(wr_dir_args.flags, ISDIR); ++ /* plink or hi_wh() case */ ++ btop = au_dbtop(dentry); ++ inode = d_inode(dentry); ++ ibtop = au_ibtop(inode); ++ if (btop != ibtop && !au_test_ro(inode->i_sb, ibtop, inode)) ++ wr_dir_args.force_btgt = ibtop; ++ err = au_wr_dir(dentry, /*src_dentry*/NULL, &wr_dir_args); ++ if (unlikely(err < 0)) ++ goto out; ++ a->btgt = err; ++ if (err != btop) ++ au_fset_icpup(a->flags, DID_CPUP); ++ ++ err = 0; ++ a->pin_flags = AuPin_MNT_WRITE; ++ parent = NULL; ++ if (!IS_ROOT(dentry)) { ++ au_fset_pin(a->pin_flags, DI_LOCKED); ++ parent = dget_parent(dentry); ++ di_write_lock_parent(parent); ++ } ++ ++ err = au_pin(&a->pin, dentry, a->btgt, a->udba, a->pin_flags); ++ if (unlikely(err)) ++ goto out_parent; ++ ++ sz = -1; ++ a->h_path.dentry = au_h_dptr(dentry, btop); ++ a->h_inode = d_inode(a->h_path.dentry); ++ if (ia && (ia->ia_valid & ATTR_SIZE)) { ++ inode_lock_shared_nested(a->h_inode, AuLsc_I_CHILD); ++ if (ia->ia_size < i_size_read(a->h_inode)) ++ sz = ia->ia_size; ++ inode_unlock_shared(a->h_inode); ++ } ++ ++ hi_wh = NULL; ++ if (au_ftest_icpup(a->flags, DID_CPUP) && d_unlinked(dentry)) { ++ hi_wh = au_hi_wh(inode, a->btgt); ++ if (!hi_wh) { ++ struct au_cp_generic cpg = { ++ .dentry = dentry, ++ .bdst = a->btgt, ++ .bsrc = -1, ++ .len = sz, ++ .pin = &a->pin ++ }; ++ err = au_sio_cpup_wh(&cpg, /*file*/NULL); ++ if (unlikely(err)) ++ goto out_unlock; ++ hi_wh = au_hi_wh(inode, a->btgt); ++ /* todo: revalidate hi_wh? */ ++ } ++ } ++ ++ if (parent) { ++ au_pin_set_parent_lflag(&a->pin, /*lflag*/0); ++ di_downgrade_lock(parent, AuLock_IR); ++ dput(parent); ++ parent = NULL; ++ } ++ if (!au_ftest_icpup(a->flags, DID_CPUP)) ++ goto out; /* success */ ++ ++ if (!d_unhashed(dentry)) { ++ struct au_cp_generic cpg = { ++ .dentry = dentry, ++ .bdst = a->btgt, ++ .bsrc = btop, ++ .len = sz, ++ .pin = &a->pin, ++ .flags = AuCpup_DTIME | AuCpup_HOPEN ++ }; ++ err = au_sio_cpup_simple(&cpg); ++ if (!err) ++ a->h_path.dentry = au_h_dptr(dentry, a->btgt); ++ } else if (!hi_wh) ++ a->h_path.dentry = au_h_dptr(dentry, a->btgt); ++ else ++ a->h_path.dentry = hi_wh; /* do not dget here */ ++ ++out_unlock: ++ a->h_inode = d_inode(a->h_path.dentry); ++ if (!err) ++ goto out; /* success */ ++ au_unpin(&a->pin); ++out_parent: ++ if (parent) { ++ di_write_unlock(parent); ++ dput(parent); ++ } ++out: ++ if (!err) ++ inode_lock_nested(a->h_inode, AuLsc_I_CHILD); ++ return err; ++} ++ ++static int aufs_setattr(struct user_namespace *userns, struct dentry *dentry, ++ struct iattr *ia) ++{ ++ int err; ++ struct inode *inode, *delegated; ++ struct super_block *sb; ++ struct file *file; ++ struct au_icpup_args *a; ++ struct user_namespace *h_userns; ++ ++ inode = d_inode(dentry); ++ IMustLock(inode); ++ ++ err = setattr_prepare(userns, dentry, ia); ++ if (unlikely(err)) ++ goto out; ++ ++ err = -ENOMEM; ++ a = kzalloc(sizeof(*a), GFP_NOFS); ++ if (unlikely(!a)) ++ goto out; ++ ++ if (ia->ia_valid & (ATTR_KILL_SUID | ATTR_KILL_SGID)) ++ ia->ia_valid &= ~ATTR_MODE; ++ ++ file = NULL; ++ sb = dentry->d_sb; ++ err = si_read_lock(sb, AuLock_FLUSH | AuLock_NOPLM); ++ if (unlikely(err)) ++ goto out_kfree; ++ ++ if (ia->ia_valid & ATTR_FILE) { ++ /* currently ftruncate(2) only */ ++ AuDebugOn(!d_is_reg(dentry)); ++ file = ia->ia_file; ++ err = au_reval_and_lock_fdi(file, au_reopen_nondir, /*wlock*/1, ++ /*fi_lsc*/0); ++ if (unlikely(err)) ++ goto out_si; ++ ia->ia_file = au_hf_top(file); ++ a->udba = AuOpt_UDBA_NONE; ++ } else { ++ /* fchmod() doesn't pass ia_file */ ++ a->udba = au_opt_udba(sb); ++ di_write_lock_child(dentry); ++ /* no d_unlinked(), to set UDBA_NONE for root */ ++ if (d_unhashed(dentry)) ++ a->udba = AuOpt_UDBA_NONE; ++ if (a->udba != AuOpt_UDBA_NONE) { ++ AuDebugOn(IS_ROOT(dentry)); ++ err = au_reval_for_attr(dentry, au_sigen(sb)); ++ if (unlikely(err)) ++ goto out_dentry; ++ } ++ } ++ ++ err = au_pin_and_icpup(dentry, ia, a); ++ if (unlikely(err < 0)) ++ goto out_dentry; ++ if (au_ftest_icpup(a->flags, DID_CPUP)) { ++ ia->ia_file = NULL; ++ ia->ia_valid &= ~ATTR_FILE; ++ } ++ ++ a->h_path.mnt = au_sbr_mnt(sb, a->btgt); ++ if ((ia->ia_valid & (ATTR_MODE | ATTR_CTIME)) ++ == (ATTR_MODE | ATTR_CTIME)) { ++ err = security_path_chmod(&a->h_path, ia->ia_mode); ++ if (unlikely(err)) ++ goto out_unlock; ++ } else if ((ia->ia_valid & (ATTR_UID | ATTR_GID)) ++ && (ia->ia_valid & ATTR_CTIME)) { ++ err = security_path_chown(&a->h_path, ia->ia_uid, ia->ia_gid); ++ if (unlikely(err)) ++ goto out_unlock; ++ } ++ ++ if (ia->ia_valid & ATTR_SIZE) { ++ struct file *f; ++ ++ if (ia->ia_size < i_size_read(inode)) ++ /* unmap only */ ++ truncate_setsize(inode, ia->ia_size); ++ ++ f = NULL; ++ if (ia->ia_valid & ATTR_FILE) ++ f = ia->ia_file; ++ inode_unlock(a->h_inode); ++ err = vfsub_trunc(&a->h_path, ia->ia_size, ia->ia_valid, f); ++ inode_lock_nested(a->h_inode, AuLsc_I_CHILD); ++ } else { ++ delegated = NULL; ++ while (1) { ++ err = vfsub_notify_change(&a->h_path, ia, &delegated); ++ if (delegated) { ++ err = break_deleg_wait(&delegated); ++ if (!err) ++ continue; ++ } ++ break; ++ } ++ } ++ /* ++ * regardless aufs 'acl' option setting. ++ * why don't all acl-aware fs call this func from their ->setattr()? ++ */ ++ if (!err && (ia->ia_valid & ATTR_MODE)) { ++ h_userns = mnt_user_ns(a->h_path.mnt); ++ err = vfsub_acl_chmod(h_userns, a->h_inode, ia->ia_mode); ++ } ++ if (!err) ++ au_cpup_attr_changeable(inode); ++ ++out_unlock: ++ inode_unlock(a->h_inode); ++ au_unpin(&a->pin); ++ if (unlikely(err)) ++ au_update_dbtop(dentry); ++out_dentry: ++ di_write_unlock(dentry); ++ if (file) { ++ fi_write_unlock(file); ++ ia->ia_file = file; ++ ia->ia_valid |= ATTR_FILE; ++ } ++out_si: ++ si_read_unlock(sb); ++out_kfree: ++ au_kfree_rcu(a); ++out: ++ AuTraceErr(err); ++ return err; ++} ++ ++#if IS_ENABLED(CONFIG_AUFS_XATTR) || IS_ENABLED(CONFIG_FS_POSIX_ACL) ++static int au_h_path_to_set_attr(struct dentry *dentry, ++ struct au_icpup_args *a, struct path *h_path) ++{ ++ int err; ++ struct super_block *sb; ++ ++ sb = dentry->d_sb; ++ a->udba = au_opt_udba(sb); ++ /* no d_unlinked(), to set UDBA_NONE for root */ ++ if (d_unhashed(dentry)) ++ a->udba = AuOpt_UDBA_NONE; ++ if (a->udba != AuOpt_UDBA_NONE) { ++ AuDebugOn(IS_ROOT(dentry)); ++ err = au_reval_for_attr(dentry, au_sigen(sb)); ++ if (unlikely(err)) ++ goto out; ++ } ++ err = au_pin_and_icpup(dentry, /*ia*/NULL, a); ++ if (unlikely(err < 0)) ++ goto out; ++ ++ h_path->dentry = a->h_path.dentry; ++ h_path->mnt = au_sbr_mnt(sb, a->btgt); ++ ++out: ++ return err; ++} ++ ++ssize_t au_sxattr(struct dentry *dentry, struct inode *inode, ++ struct au_sxattr *arg) ++{ ++ int err; ++ struct path h_path; ++ struct super_block *sb; ++ struct au_icpup_args *a; ++ struct inode *h_inode; ++ struct user_namespace *h_userns; ++ ++ IMustLock(inode); ++ ++ err = -ENOMEM; ++ a = kzalloc(sizeof(*a), GFP_NOFS); ++ if (unlikely(!a)) ++ goto out; ++ ++ sb = dentry->d_sb; ++ err = si_read_lock(sb, AuLock_FLUSH | AuLock_NOPLM); ++ if (unlikely(err)) ++ goto out_kfree; ++ ++ h_path.dentry = NULL; /* silence gcc */ ++ di_write_lock_child(dentry); ++ err = au_h_path_to_set_attr(dentry, a, &h_path); ++ if (unlikely(err)) ++ goto out_di; ++ h_userns = mnt_user_ns(h_path.mnt); ++ ++ inode_unlock(a->h_inode); ++ switch (arg->type) { ++ case AU_XATTR_SET: ++ AuDebugOn(d_is_negative(h_path.dentry)); ++ err = vfsub_setxattr(h_userns, h_path.dentry, ++ arg->u.set.name, arg->u.set.value, ++ arg->u.set.size, arg->u.set.flags); ++ break; ++ case AU_ACL_SET: ++ err = -EOPNOTSUPP; ++ h_inode = d_inode(h_path.dentry); ++ if (h_inode->i_op->set_acl) { ++ /* this will call posix_acl_update_mode */ ++ err = h_inode->i_op->set_acl(h_userns, h_inode, ++ arg->u.acl_set.acl, ++ arg->u.acl_set.type); ++ } ++ break; ++ } ++ if (!err) ++ au_cpup_attr_timesizes(inode); ++ ++ au_unpin(&a->pin); ++ if (unlikely(err)) ++ au_update_dbtop(dentry); ++ ++out_di: ++ di_write_unlock(dentry); ++ si_read_unlock(sb); ++out_kfree: ++ au_kfree_rcu(a); ++out: ++ AuTraceErr(err); ++ return err; ++} ++#endif ++ ++static void au_refresh_iattr(struct inode *inode, struct kstat *st, ++ unsigned int nlink) ++{ ++ unsigned int n; ++ ++ inode->i_mode = st->mode; ++ /* don't i_[ug]id_write() here */ ++ inode->i_uid = st->uid; ++ inode->i_gid = st->gid; ++ inode->i_atime = st->atime; ++ inode->i_mtime = st->mtime; ++ inode->i_ctime = st->ctime; ++ ++ au_cpup_attr_nlink(inode, /*force*/0); ++ if (S_ISDIR(inode->i_mode)) { ++ n = inode->i_nlink; ++ n -= nlink; ++ n += st->nlink; ++ smp_mb(); /* for i_nlink */ ++ /* 0 can happen */ ++ set_nlink(inode, n); ++ } ++ ++ spin_lock(&inode->i_lock); ++ inode->i_blocks = st->blocks; ++ i_size_write(inode, st->size); ++ spin_unlock(&inode->i_lock); ++} ++ ++/* ++ * common routine for aufs_getattr() and au_getxattr(). ++ * returns zero or negative (an error). ++ * @dentry will be read-locked in success. ++ */ ++int au_h_path_getattr(struct dentry *dentry, struct inode *inode, int force, ++ struct path *h_path, int locked) ++{ ++ int err; ++ unsigned int mnt_flags, sigen; ++ unsigned char udba_none; ++ aufs_bindex_t bindex; ++ struct super_block *sb, *h_sb; ++ ++ h_path->mnt = NULL; ++ h_path->dentry = NULL; ++ ++ err = 0; ++ sb = dentry->d_sb; ++ mnt_flags = au_mntflags(sb); ++ udba_none = !!au_opt_test(mnt_flags, UDBA_NONE); ++ ++ if (unlikely(locked)) ++ goto body; /* skip locking dinfo */ ++ ++ /* support fstat(2) */ ++ if (!d_unlinked(dentry) && !udba_none) { ++ sigen = au_sigen(sb); ++ err = au_digen_test(dentry, sigen); ++ if (!err) { ++ di_read_lock_child(dentry, AuLock_IR); ++ err = au_dbrange_test(dentry); ++ if (unlikely(err)) { ++ di_read_unlock(dentry, AuLock_IR); ++ goto out; ++ } ++ } else { ++ AuDebugOn(IS_ROOT(dentry)); ++ di_write_lock_child(dentry); ++ err = au_dbrange_test(dentry); ++ if (!err) ++ err = au_reval_for_attr(dentry, sigen); ++ if (!err) ++ di_downgrade_lock(dentry, AuLock_IR); ++ else { ++ di_write_unlock(dentry); ++ goto out; ++ } ++ } ++ } else ++ di_read_lock_child(dentry, AuLock_IR); ++ ++body: ++ if (!inode) { ++ inode = d_inode(dentry); ++ if (unlikely(!inode)) ++ goto out; ++ } ++ bindex = au_ibtop(inode); ++ h_path->mnt = au_sbr_mnt(sb, bindex); ++ h_sb = h_path->mnt->mnt_sb; ++ if (!force ++ && !au_test_fs_bad_iattr(h_sb) ++ && udba_none) ++ goto out; /* success */ ++ ++ if (au_dbtop(dentry) == bindex) ++ h_path->dentry = au_h_dptr(dentry, bindex); ++ else if (au_opt_test(mnt_flags, PLINK) && au_plink_test(inode)) { ++ h_path->dentry = au_plink_lkup(inode, bindex); ++ if (IS_ERR(h_path->dentry)) ++ /* pretending success */ ++ h_path->dentry = NULL; ++ else ++ dput(h_path->dentry); ++ } ++ ++out: ++ return err; ++} ++ ++static int aufs_getattr(struct user_namespace *userns, const struct path *path, ++ struct kstat *st, u32 request, unsigned int query) ++{ ++ int err; ++ unsigned char positive; ++ struct path h_path; ++ struct dentry *dentry; ++ struct inode *inode; ++ struct super_block *sb; ++ ++ dentry = path->dentry; ++ inode = d_inode(dentry); ++ sb = dentry->d_sb; ++ err = si_read_lock(sb, AuLock_FLUSH | AuLock_NOPLM); ++ if (unlikely(err)) ++ goto out; ++ err = au_h_path_getattr(dentry, /*inode*/NULL, /*force*/0, &h_path, ++ /*locked*/0); ++ if (unlikely(err)) ++ goto out_si; ++ if (unlikely(!h_path.dentry)) ++ /* illegally overlapped or something */ ++ goto out_fill; /* pretending success */ ++ ++ positive = d_is_positive(h_path.dentry); ++ if (positive) ++ /* no vfsub version */ ++ err = vfs_getattr(&h_path, st, request, query); ++ if (!err) { ++ if (positive) ++ au_refresh_iattr(inode, st, ++ d_inode(h_path.dentry)->i_nlink); ++ goto out_fill; /* success */ ++ } ++ AuTraceErr(err); ++ goto out_di; ++ ++out_fill: ++ generic_fillattr(userns, inode, st); ++out_di: ++ di_read_unlock(dentry, AuLock_IR); ++out_si: ++ si_read_unlock(sb); ++out: ++ AuTraceErr(err); ++ return err; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++static const char *aufs_get_link(struct dentry *dentry, struct inode *inode, ++ struct delayed_call *done) ++{ ++ const char *ret; ++ struct dentry *h_dentry; ++ struct inode *h_inode; ++ int err; ++ aufs_bindex_t bindex; ++ ++ ret = NULL; /* suppress a warning */ ++ err = -ECHILD; ++ if (!dentry) ++ goto out; ++ ++ err = aufs_read_lock(dentry, AuLock_IR | AuLock_GEN); ++ if (unlikely(err)) ++ goto out; ++ ++ err = au_d_hashed_positive(dentry); ++ if (unlikely(err)) ++ goto out_unlock; ++ ++ err = -EINVAL; ++ inode = d_inode(dentry); ++ bindex = au_ibtop(inode); ++ h_inode = au_h_iptr(inode, bindex); ++ if (unlikely(!h_inode->i_op->get_link)) ++ goto out_unlock; ++ ++ err = -EBUSY; ++ h_dentry = NULL; ++ if (au_dbtop(dentry) <= bindex) { ++ h_dentry = au_h_dptr(dentry, bindex); ++ if (h_dentry) ++ dget(h_dentry); ++ } ++ if (!h_dentry) { ++ h_dentry = d_find_any_alias(h_inode); ++ if (IS_ERR(h_dentry)) { ++ err = PTR_ERR(h_dentry); ++ goto out_unlock; ++ } ++ } ++ if (unlikely(!h_dentry)) ++ goto out_unlock; ++ ++ err = 0; ++ AuDbg("%ps\n", h_inode->i_op->get_link); ++ AuDbgDentry(h_dentry); ++ ret = vfs_get_link(h_dentry, done); ++ dput(h_dentry); ++ if (IS_ERR(ret)) ++ err = PTR_ERR(ret); ++ ++out_unlock: ++ aufs_read_unlock(dentry, AuLock_IR); ++out: ++ if (unlikely(err)) ++ ret = ERR_PTR(err); ++ AuTraceErrPtr(ret); ++ return ret; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++static int au_is_special(struct inode *inode) ++{ ++ return (inode->i_mode & (S_IFBLK | S_IFCHR | S_IFIFO | S_IFSOCK)); ++} ++ ++static int aufs_update_time(struct inode *inode, struct timespec64 *ts, ++ int flags) ++{ ++ int err; ++ aufs_bindex_t bindex; ++ struct super_block *sb; ++ struct inode *h_inode; ++ struct vfsmount *h_mnt; ++ ++ sb = inode->i_sb; ++ WARN_ONCE((flags & S_ATIME) && !IS_NOATIME(inode), ++ "unexpected s_flags 0x%lx", sb->s_flags); ++ ++ /* mmap_sem might be acquired already, cf. aufs_mmap() */ ++ lockdep_off(); ++ si_read_lock(sb, AuLock_FLUSH); ++ ii_write_lock_child(inode); ++ ++ err = 0; ++ bindex = au_ibtop(inode); ++ h_inode = au_h_iptr(inode, bindex); ++ if (!au_test_ro(sb, bindex, inode)) { ++ h_mnt = au_sbr_mnt(sb, bindex); ++ err = vfsub_mnt_want_write(h_mnt); ++ if (!err) { ++ err = vfsub_update_time(h_inode, ts, flags); ++ vfsub_mnt_drop_write(h_mnt); ++ } ++ } else if (au_is_special(h_inode)) { ++ /* ++ * Never copy-up here. ++ * These special files may already be opened and used for ++ * communicating. If we copied it up, then the communication ++ * would be corrupted. ++ */ ++ AuWarn1("timestamps for i%lu are ignored " ++ "since it is on readonly branch (hi%lu).\n", ++ inode->i_ino, h_inode->i_ino); ++ } else if (flags & ~S_ATIME) { ++ err = -EIO; ++ AuIOErr1("unexpected flags 0x%x\n", flags); ++ AuDebugOn(1); ++ } ++ ++ if (!err) ++ au_cpup_attr_timesizes(inode); ++ ii_write_unlock(inode); ++ si_read_unlock(sb); ++ lockdep_on(); ++ ++ if (!err && (flags & S_VERSION)) ++ inode_inc_iversion(inode); ++ ++ return err; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++/* no getattr version will be set by module.c:aufs_init() */ ++struct inode_operations aufs_iop_nogetattr[AuIop_Last], ++ aufs_iop[] = { ++ [AuIop_SYMLINK] = { ++ .permission = aufs_permission, ++#ifdef CONFIG_FS_POSIX_ACL ++ .get_acl = aufs_get_acl, ++ .set_acl = aufs_set_acl, /* unsupport for symlink? */ ++#endif ++ ++ .setattr = aufs_setattr, ++ .getattr = aufs_getattr, ++ ++#ifdef CONFIG_AUFS_XATTR ++ .listxattr = aufs_listxattr, ++#endif ++ ++ .get_link = aufs_get_link, ++ ++ /* .update_time = aufs_update_time */ ++ }, ++ [AuIop_DIR] = { ++ .create = aufs_create, ++ .lookup = aufs_lookup, ++ .link = aufs_link, ++ .unlink = aufs_unlink, ++ .symlink = aufs_symlink, ++ .mkdir = aufs_mkdir, ++ .rmdir = aufs_rmdir, ++ .mknod = aufs_mknod, ++ .rename = aufs_rename, ++ ++ .permission = aufs_permission, ++#ifdef CONFIG_FS_POSIX_ACL ++ .get_acl = aufs_get_acl, ++ .set_acl = aufs_set_acl, ++#endif ++ ++ .setattr = aufs_setattr, ++ .getattr = aufs_getattr, ++ ++#ifdef CONFIG_AUFS_XATTR ++ .listxattr = aufs_listxattr, ++#endif ++ ++ .update_time = aufs_update_time, ++ .atomic_open = aufs_atomic_open, ++ .tmpfile = aufs_tmpfile ++ }, ++ [AuIop_OTHER] = { ++ .permission = aufs_permission, ++#ifdef CONFIG_FS_POSIX_ACL ++ .get_acl = aufs_get_acl, ++ .set_acl = aufs_set_acl, ++#endif ++ ++ .setattr = aufs_setattr, ++ .getattr = aufs_getattr, ++ ++#ifdef CONFIG_AUFS_XATTR ++ .listxattr = aufs_listxattr, ++#endif ++ ++ .update_time = aufs_update_time ++ } ++}; +diff -Naur linux-5.15/fs/aufs/i_op_del.c aufs5-linux-aufs5.15/fs/aufs/i_op_del.c +--- linux-5.15/fs/aufs/i_op_del.c 1970-01-01 03:00:00.000000000 +0300 ++++ aufs5-linux-aufs5.15/fs/aufs/i_op_del.c 2022-03-07 13:48:09.000000000 +0300 +@@ -0,0 +1,509 @@ ++// SPDX-License-Identifier: GPL-2.0 ++/* ++ * Copyright (C) 2005-2021 Junjiro R. Okajima ++ */ ++ ++/* ++ * inode operations (del entry) ++ */ ++ ++#include ++#include "aufs.h" ++ ++/* ++ * decide if a new whiteout for @dentry is necessary or not. ++ * when it is necessary, prepare the parent dir for the upper branch whose ++ * branch index is @bcpup for creation. the actual creation of the whiteout will ++ * be done by caller. ++ * return value: ++ * 0: wh is unnecessary ++ * plus: wh is necessary ++ * minus: error ++ */ ++int au_wr_dir_need_wh(struct dentry *dentry, int isdir, aufs_bindex_t *bcpup) ++{ ++ int need_wh, err; ++ aufs_bindex_t btop; ++ struct super_block *sb; ++ ++ sb = dentry->d_sb; ++ btop = au_dbtop(dentry); ++ if (*bcpup < 0) { ++ *bcpup = btop; ++ if (au_test_ro(sb, btop, d_inode(dentry))) { ++ err = AuWbrCopyup(au_sbi(sb), dentry); ++ *bcpup = err; ++ if (unlikely(err < 0)) ++ goto out; ++ } ++ } else ++ AuDebugOn(btop < *bcpup ++ || au_test_ro(sb, *bcpup, d_inode(dentry))); ++ AuDbg("bcpup %d, btop %d\n", *bcpup, btop); ++ ++ if (*bcpup != btop) { ++ err = au_cpup_dirs(dentry, *bcpup); ++ if (unlikely(err)) ++ goto out; ++ need_wh = 1; ++ } else { ++ struct au_dinfo *dinfo, *tmp; ++ ++ need_wh = -ENOMEM; ++ dinfo = au_di(dentry); ++ tmp = au_di_alloc(sb, AuLsc_DI_TMP); ++ if (tmp) { ++ au_di_cp(tmp, dinfo); ++ au_di_swap(tmp, dinfo); ++ /* returns the number of positive dentries */ ++ need_wh = au_lkup_dentry(dentry, btop + 1, ++ /* AuLkup_IGNORE_PERM */ 0); ++ au_di_swap(tmp, dinfo); ++ au_rw_write_unlock(&tmp->di_rwsem); ++ au_di_free(tmp); ++ } ++ } ++ AuDbg("need_wh %d\n", need_wh); ++ err = need_wh; ++ ++out: ++ return err; ++} ++ ++/* ++ * simple tests for the del-entry operations. ++ * following the checks in vfs, plus the parent-child relationship. ++ */ ++int au_may_del(struct dentry *dentry, aufs_bindex_t bindex, ++ struct dentry *h_parent, int isdir) ++{ ++ int err; ++ umode_t h_mode; ++ struct dentry *h_dentry, *h_latest; ++ struct inode *h_inode; ++ struct path h_ppath; ++ struct super_block *sb; ++ struct au_branch *br; ++ struct user_namespace *h_userns; ++ ++ h_dentry = au_h_dptr(dentry, bindex); ++ if (d_really_is_positive(dentry)) { ++ err = -ENOENT; ++ if (unlikely(d_is_negative(h_dentry))) ++ goto out; ++ h_inode = d_inode(h_dentry); ++ if (unlikely(!h_inode->i_nlink)) ++ goto out; ++ ++ h_mode = h_inode->i_mode; ++ if (!isdir) { ++ err = -EISDIR; ++ if (unlikely(S_ISDIR(h_mode))) ++ goto out; ++ } else if (unlikely(!S_ISDIR(h_mode))) { ++ err = -ENOTDIR; ++ goto out; ++ } ++ } else { ++ /* rename(2) case */ ++ err = -EIO; ++ if (unlikely(d_is_positive(h_dentry))) ++ goto out; ++ } ++ ++ err = -ENOENT; ++ /* expected parent dir is locked */ ++ if (unlikely(h_parent != h_dentry->d_parent)) ++ goto out; ++ err = 0; ++ ++ /* ++ * rmdir a dir may break the consistency on some filesystem. ++ * let's try heavy test. ++ */ ++ err = -EACCES; ++ sb = dentry->d_sb; ++ br = au_sbr(sb, bindex); ++ h_userns = au_br_userns(br); ++ if (unlikely(!au_opt_test(au_mntflags(sb), DIRPERM1) ++ && au_test_h_perm(h_userns, d_inode(h_parent), ++ MAY_EXEC | MAY_WRITE))) ++ goto out; ++ ++ h_ppath.dentry = h_parent; ++ h_ppath.mnt = au_br_mnt(br); ++ h_latest = au_sio_lkup_one(h_userns, &dentry->d_name, &h_ppath); ++ err = -EIO; ++ if (IS_ERR(h_latest)) ++ goto out; ++ if (h_latest == h_dentry) ++ err = 0; ++ dput(h_latest); ++ ++out: ++ return err; ++} ++ ++/* ++ * decide the branch where we operate for @dentry. the branch index will be set ++ * @rbcpup. after deciding it, 'pin' it and store the timestamps of the parent ++ * dir for reverting. ++ * when a new whiteout is necessary, create it. ++ */ ++static struct dentry* ++lock_hdir_create_wh(struct dentry *dentry, int isdir, aufs_bindex_t *rbcpup, ++ struct au_dtime *dt, struct au_pin *pin) ++{ ++ struct dentry *wh_dentry; ++ struct super_block *sb; ++ struct path h_path; ++ int err, need_wh; ++ unsigned int udba; ++ aufs_bindex_t bcpup; ++ ++ need_wh = au_wr_dir_need_wh(dentry, isdir, rbcpup); ++ wh_dentry = ERR_PTR(need_wh); ++ if (unlikely(need_wh < 0)) ++ goto out; ++ ++ sb = dentry->d_sb; ++ udba = au_opt_udba(sb); ++ bcpup = *rbcpup; ++ err = au_pin(pin, dentry, bcpup, udba, ++ AuPin_DI_LOCKED | AuPin_MNT_WRITE); ++ wh_dentry = ERR_PTR(err); ++ if (unlikely(err)) ++ goto out; ++ ++ h_path.dentry = au_pinned_h_parent(pin); ++ if (udba != AuOpt_UDBA_NONE ++ && au_dbtop(dentry) == bcpup) { ++ err = au_may_del(dentry, bcpup, h_path.dentry, isdir); ++ wh_dentry = ERR_PTR(err); ++ if (unlikely(err)) ++ goto out_unpin; ++ } ++ ++ h_path.mnt = au_sbr_mnt(sb, bcpup); ++ au_dtime_store(dt, au_pinned_parent(pin), &h_path); ++ wh_dentry = NULL; ++ if (!need_wh) ++ goto out; /* success, no need to create whiteout */ ++ ++ wh_dentry = au_wh_create(dentry, bcpup, h_path.dentry); ++ if (IS_ERR(wh_dentry)) ++ goto out_unpin; ++ ++ /* returns with the parent is locked and wh_dentry is dget-ed */ ++ goto out; /* success */ ++ ++out_unpin: ++ au_unpin(pin); ++out: ++ return wh_dentry; ++} ++ ++/* ++ * when removing a dir, rename it to a unique temporary whiteout-ed name first ++ * in order to be revertible and save time for removing many child whiteouts ++ * under the dir. ++ * returns 1 when there are too many child whiteout and caller should remove ++ * them asynchronously. returns 0 when the number of children is enough small to ++ * remove now or the branch fs is a remote fs. ++ * otherwise return an error. ++ */ ++static int renwh_and_rmdir(struct dentry *dentry, aufs_bindex_t bindex, ++ struct au_nhash *whlist, struct inode *dir) ++{ ++ int rmdir_later, err, dirwh; ++ struct dentry *h_dentry; ++ struct super_block *sb; ++ struct inode *inode; ++ ++ sb = dentry->d_sb; ++ SiMustAnyLock(sb); ++ h_dentry = au_h_dptr(dentry, bindex); ++ err = au_whtmp_ren(h_dentry, au_sbr(sb, bindex)); ++ if (unlikely(err)) ++ goto out; ++ ++ /* stop monitoring */ ++ inode = d_inode(dentry); ++ au_hn_free(au_hi(inode, bindex)); ++ ++ if (!au_test_fs_remote(h_dentry->d_sb)) { ++ dirwh = au_sbi(sb)->si_dirwh; ++ rmdir_later = (dirwh <= 1); ++ if (!rmdir_later) ++ rmdir_later = au_nhash_test_longer_wh(whlist, bindex, ++ dirwh); ++ if (rmdir_later) ++ return rmdir_later; ++ } ++ ++ err = au_whtmp_rmdir(dir, bindex, h_dentry, whlist); ++ if (unlikely(err)) { ++ AuIOErr("rmdir %pd, b%d failed, %d. ignored\n", ++ h_dentry, bindex, err); ++ err = 0; ++ } ++ ++out: ++ AuTraceErr(err); ++ return err; ++} ++ ++/* ++ * final procedure for deleting a entry. ++ * maintain dentry and iattr. ++ */ ++static void epilog(struct inode *dir, struct dentry *dentry, ++ aufs_bindex_t bindex) ++{ ++ struct inode *inode; ++ ++ inode = d_inode(dentry); ++ d_drop(dentry); ++ inode->i_ctime = dir->i_ctime; ++ ++ au_dir_ts(dir, bindex); ++ inode_inc_iversion(dir); ++} ++ ++/* ++ * when an error happened, remove the created whiteout and revert everything. ++ */ ++static int do_revert(int err, struct inode *dir, aufs_bindex_t bindex, ++ aufs_bindex_t bwh, struct dentry *wh_dentry, ++ struct dentry *dentry, struct au_dtime *dt) ++{ ++ int rerr; ++ struct path h_path = { ++ .dentry = wh_dentry, ++ .mnt = au_sbr_mnt(dir->i_sb, bindex) ++ }; ++ ++ rerr = au_wh_unlink_dentry(au_h_iptr(dir, bindex), &h_path, dentry); ++ if (!rerr) { ++ au_set_dbwh(dentry, bwh); ++ au_dtime_revert(dt); ++ return 0; ++ } ++ ++ AuIOErr("%pd reverting whiteout failed(%d, %d)\n", dentry, err, rerr); ++ return -EIO; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++int aufs_unlink(struct inode *dir, struct dentry *dentry) ++{ ++ int err; ++ aufs_bindex_t bwh, bindex, btop; ++ struct inode *inode, *h_dir, *delegated; ++ struct dentry *parent, *wh_dentry; ++ /* to reduce stack size */ ++ struct { ++ struct au_dtime dt; ++ struct au_pin pin; ++ struct path h_path; ++ } *a; ++ ++ IMustLock(dir); ++ ++ err = -ENOMEM; ++ a = kmalloc(sizeof(*a), GFP_NOFS); ++ if (unlikely(!a)) ++ goto out; ++ ++ err = aufs_read_lock(dentry, AuLock_DW | AuLock_GEN); ++ if (unlikely(err)) ++ goto out_free; ++ err = au_d_hashed_positive(dentry); ++ if (unlikely(err)) ++ goto out_unlock; ++ inode = d_inode(dentry); ++ IMustLock(inode); ++ err = -EISDIR; ++ if (unlikely(d_is_dir(dentry))) ++ goto out_unlock; /* possible? */ ++ ++ btop = au_dbtop(dentry); ++ bwh = au_dbwh(dentry); ++ bindex = -1; ++ parent = dentry->d_parent; /* dir inode is locked */ ++ di_write_lock_parent(parent); ++ wh_dentry = lock_hdir_create_wh(dentry, /*isdir*/0, &bindex, &a->dt, ++ &a->pin); ++ err = PTR_ERR(wh_dentry); ++ if (IS_ERR(wh_dentry)) ++ goto out_parent; ++ ++ a->h_path.mnt = au_sbr_mnt(dentry->d_sb, btop); ++ a->h_path.dentry = au_h_dptr(dentry, btop); ++ dget(a->h_path.dentry); ++ if (bindex == btop) { ++ h_dir = au_pinned_h_dir(&a->pin); ++ delegated = NULL; ++ err = vfsub_unlink(h_dir, &a->h_path, &delegated, /*force*/0); ++ if (unlikely(err == -EWOULDBLOCK)) { ++ pr_warn("cannot retry for NFSv4 delegation" ++ " for an internal unlink\n"); ++ iput(delegated); ++ } ++ } else { ++ /* dir inode is locked */ ++ h_dir = d_inode(wh_dentry->d_parent); ++ IMustLock(h_dir); ++ err = 0; ++ } ++ ++ if (!err) { ++ vfsub_drop_nlink(inode); ++ epilog(dir, dentry, bindex); ++ ++ /* update target timestamps */ ++ if (bindex == btop) { ++ vfsub_update_h_iattr(&a->h_path, /*did*/NULL); ++ /*ignore*/ ++ inode->i_ctime = d_inode(a->h_path.dentry)->i_ctime; ++ } else ++ /* todo: this timestamp may be reverted later */ ++ inode->i_ctime = h_dir->i_ctime; ++ goto out_unpin; /* success */ ++ } ++ ++ /* revert */ ++ if (wh_dentry) { ++ int rerr; ++ ++ rerr = do_revert(err, dir, bindex, bwh, wh_dentry, dentry, ++ &a->dt); ++ if (rerr) ++ err = rerr; ++ } ++ ++out_unpin: ++ au_unpin(&a->pin); ++ dput(wh_dentry); ++ dput(a->h_path.dentry); ++out_parent: ++ di_write_unlock(parent); ++out_unlock: ++ aufs_read_unlock(dentry, AuLock_DW); ++out_free: ++ au_kfree_rcu(a); ++out: ++ return err; ++} ++ ++int aufs_rmdir(struct inode *dir, struct dentry *dentry) ++{ ++ int err, rmdir_later; ++ aufs_bindex_t bwh, bindex, btop; ++ struct inode *inode; ++ struct dentry *parent, *wh_dentry, *h_dentry; ++ struct au_whtmp_rmdir *args; ++ /* to reduce stack size */ ++ struct { ++ struct au_dtime dt; ++ struct au_pin pin; ++ } *a; ++ ++ IMustLock(dir); ++ ++ err = -ENOMEM; ++ a = kmalloc(sizeof(*a), GFP_NOFS); ++ if (unlikely(!a)) ++ goto out; ++ ++ err = aufs_read_lock(dentry, AuLock_DW | AuLock_FLUSH | AuLock_GEN); ++ if (unlikely(err)) ++ goto out_free; ++ err = au_alive_dir(dentry); ++ if (unlikely(err)) ++ goto out_unlock; ++ inode = d_inode(dentry); ++ IMustLock(inode); ++ err = -ENOTDIR; ++ if (unlikely(!d_is_dir(dentry))) ++ goto out_unlock; /* possible? */ ++ ++ err = -ENOMEM; ++ args = au_whtmp_rmdir_alloc(dir->i_sb, GFP_NOFS); ++ if (unlikely(!args)) ++ goto out_unlock; ++ ++ parent = dentry->d_parent; /* dir inode is locked */ ++ di_write_lock_parent(parent); ++ err = au_test_empty(dentry, &args->whlist); ++ if (unlikely(err)) ++ goto out_parent; ++ ++ btop = au_dbtop(dentry); ++ bwh = au_dbwh(dentry); ++ bindex = -1; ++ wh_dentry = lock_hdir_create_wh(dentry, /*isdir*/1, &bindex, &a->dt, ++ &a->pin); ++ err = PTR_ERR(wh_dentry); ++ if (IS_ERR(wh_dentry)) ++ goto out_parent; ++ ++ h_dentry = au_h_dptr(dentry, btop); ++ dget(h_dentry); ++ rmdir_later = 0; ++ if (bindex == btop) { ++ err = renwh_and_rmdir(dentry, btop, &args->whlist, dir); ++ if (err > 0) { ++ rmdir_later = err; ++ err = 0; ++ } ++ } else { ++ /* stop monitoring */ ++ au_hn_free(au_hi(inode, btop)); ++ ++ /* dir inode is locked */ ++ IMustLock(d_inode(wh_dentry->d_parent)); ++ err = 0; ++ } ++ ++ if (!err) { ++ vfsub_dead_dir(inode); ++ au_set_dbdiropq(dentry, -1); ++ epilog(dir, dentry, bindex); ++ ++ if (rmdir_later) { ++ au_whtmp_kick_rmdir(dir, btop, h_dentry, args); ++ args = NULL; ++ } ++ ++ goto out_unpin; /* success */ ++ } ++ ++ /* revert */ ++ AuLabel(revert); ++ if (wh_dentry) { ++ int rerr; ++ ++ rerr = do_revert(err, dir, bindex, bwh, wh_dentry, dentry, ++ &a->dt); ++ if (rerr) ++ err = rerr; ++ } ++ ++out_unpin: ++ au_unpin(&a->pin); ++ dput(wh_dentry); ++ dput(h_dentry); ++out_parent: ++ di_write_unlock(parent); ++ if (args) ++ au_whtmp_rmdir_free(args); ++out_unlock: ++ aufs_read_unlock(dentry, AuLock_DW); ++out_free: ++ au_kfree_rcu(a); ++out: ++ AuTraceErr(err); ++ return err; ++} +diff -Naur linux-5.15/fs/aufs/i_op_ren.c aufs5-linux-aufs5.15/fs/aufs/i_op_ren.c +--- linux-5.15/fs/aufs/i_op_ren.c 1970-01-01 03:00:00.000000000 +0300 ++++ aufs5-linux-aufs5.15/fs/aufs/i_op_ren.c 2022-03-07 13:48:09.000000000 +0300 +@@ -0,0 +1,1244 @@ ++// SPDX-License-Identifier: GPL-2.0 ++/* ++ * Copyright (C) 2005-2021 Junjiro R. Okajima ++ */ ++ ++/* ++ * inode operation (rename entry) ++ * todo: this is crazy monster ++ */ ++ ++#include ++#include "aufs.h" ++ ++enum { AuSRC, AuDST, AuSrcDst }; ++enum { AuPARENT, AuCHILD, AuParentChild }; ++ ++#define AuRen_ISDIR_SRC 1 ++#define AuRen_ISDIR_DST (1 << 1) ++#define AuRen_ISSAMEDIR (1 << 2) ++#define AuRen_WHSRC (1 << 3) ++#define AuRen_WHDST (1 << 4) ++#define AuRen_MNT_WRITE (1 << 5) ++#define AuRen_DT_DSTDIR (1 << 6) ++#define AuRen_DIROPQ_SRC (1 << 7) ++#define AuRen_DIROPQ_DST (1 << 8) ++#define AuRen_DIRREN (1 << 9) ++#define AuRen_DROPPED_SRC (1 << 10) ++#define AuRen_DROPPED_DST (1 << 11) ++#define au_ftest_ren(flags, name) ((flags) & AuRen_##name) ++#define au_fset_ren(flags, name) \ ++ do { (flags) |= AuRen_##name; } while (0) ++#define au_fclr_ren(flags, name) \ ++ do { (flags) &= ~AuRen_##name; } while (0) ++ ++#ifndef CONFIG_AUFS_DIRREN ++#undef AuRen_DIRREN ++#define AuRen_DIRREN 0 ++#endif ++ ++struct au_ren_args { ++ struct { ++ struct dentry *dentry, *h_dentry, *parent, *h_parent, ++ *wh_dentry; ++ struct inode *dir, *inode; ++ struct au_hinode *hdir, *hinode; ++ struct au_dtime dt[AuParentChild]; ++ aufs_bindex_t btop, bdiropq; ++ } sd[AuSrcDst]; ++ ++#define src_dentry sd[AuSRC].dentry ++#define src_dir sd[AuSRC].dir ++#define src_inode sd[AuSRC].inode ++#define src_h_dentry sd[AuSRC].h_dentry ++#define src_parent sd[AuSRC].parent ++#define src_h_parent sd[AuSRC].h_parent ++#define src_wh_dentry sd[AuSRC].wh_dentry ++#define src_hdir sd[AuSRC].hdir ++#define src_hinode sd[AuSRC].hinode ++#define src_h_dir sd[AuSRC].hdir->hi_inode ++#define src_dt sd[AuSRC].dt ++#define src_btop sd[AuSRC].btop ++#define src_bdiropq sd[AuSRC].bdiropq ++ ++#define dst_dentry sd[AuDST].dentry ++#define dst_dir sd[AuDST].dir ++#define dst_inode sd[AuDST].inode ++#define dst_h_dentry sd[AuDST].h_dentry ++#define dst_parent sd[AuDST].parent ++#define dst_h_parent sd[AuDST].h_parent ++#define dst_wh_dentry sd[AuDST].wh_dentry ++#define dst_hdir sd[AuDST].hdir ++#define dst_hinode sd[AuDST].hinode ++#define dst_h_dir sd[AuDST].hdir->hi_inode ++#define dst_dt sd[AuDST].dt ++#define dst_btop sd[AuDST].btop ++#define dst_bdiropq sd[AuDST].bdiropq ++ ++ struct dentry *h_trap; ++ struct au_branch *br; ++ struct path h_path; ++ struct au_nhash whlist; ++ aufs_bindex_t btgt, src_bwh; ++ ++ struct { ++ unsigned short auren_flags; ++ unsigned char flags; /* syscall parameter */ ++ unsigned char exchange; ++ } __packed; ++ ++ struct au_whtmp_rmdir *thargs; ++ struct dentry *h_dst; ++ struct au_hinode *h_root; ++}; ++ ++/* ---------------------------------------------------------------------- */ ++ ++/* ++ * functions for reverting. ++ * when an error happened in a single rename systemcall, we should revert ++ * everything as if nothing happened. ++ * we don't need to revert the copied-up/down the parent dir since they are ++ * harmless. ++ */ ++ ++#define RevertFailure(fmt, ...) do { \ ++ AuIOErr("revert failure: " fmt " (%d, %d)\n", \ ++ ##__VA_ARGS__, err, rerr); \ ++ err = -EIO; \ ++} while (0) ++ ++static void au_ren_do_rev_diropq(int err, struct au_ren_args *a, int idx) ++{ ++ int rerr; ++ struct dentry *d; ++#define src_or_dst(member) a->sd[idx].member ++ ++ d = src_or_dst(dentry); /* {src,dst}_dentry */ ++ au_hn_inode_lock_nested(src_or_dst(hinode), AuLsc_I_CHILD); ++ rerr = au_diropq_remove(d, a->btgt); ++ au_hn_inode_unlock(src_or_dst(hinode)); ++ au_set_dbdiropq(d, src_or_dst(bdiropq)); ++ if (rerr) ++ RevertFailure("remove diropq %pd", d); ++ ++#undef src_or_dst_ ++} ++ ++static void au_ren_rev_diropq(int err, struct au_ren_args *a) ++{ ++ if (au_ftest_ren(a->auren_flags, DIROPQ_SRC)) ++ au_ren_do_rev_diropq(err, a, AuSRC); ++ if (au_ftest_ren(a->auren_flags, DIROPQ_DST)) ++ au_ren_do_rev_diropq(err, a, AuDST); ++} ++ ++static void au_ren_rev_rename(int err, struct au_ren_args *a) ++{ ++ int rerr; ++ struct inode *delegated; ++ struct path h_ppath = { ++ .dentry = a->src_h_parent, ++ .mnt = a->h_path.mnt ++ }; ++ ++ a->h_path.dentry = vfsub_lkup_one(&a->src_dentry->d_name, &h_ppath); ++ rerr = PTR_ERR(a->h_path.dentry); ++ if (IS_ERR(a->h_path.dentry)) { ++ RevertFailure("lkup one %pd", a->src_dentry); ++ return; ++ } ++ ++ delegated = NULL; ++ rerr = vfsub_rename(a->dst_h_dir, ++ au_h_dptr(a->src_dentry, a->btgt), ++ a->src_h_dir, &a->h_path, &delegated, a->flags); ++ if (unlikely(rerr == -EWOULDBLOCK)) { ++ pr_warn("cannot retry for NFSv4 delegation" ++ " for an internal rename\n"); ++ iput(delegated); ++ } ++ d_drop(a->h_path.dentry); ++ dput(a->h_path.dentry); ++ /* au_set_h_dptr(a->src_dentry, a->btgt, NULL); */ ++ if (rerr) ++ RevertFailure("rename %pd", a->src_dentry); ++} ++ ++static void au_ren_rev_whtmp(int err, struct au_ren_args *a) ++{ ++ int rerr; ++ struct inode *delegated; ++ struct path h_ppath = { ++ .dentry = a->dst_h_parent, ++ .mnt = a->h_path.mnt ++ }; ++ ++ a->h_path.dentry = vfsub_lkup_one(&a->dst_dentry->d_name, &h_ppath); ++ rerr = PTR_ERR(a->h_path.dentry); ++ if (IS_ERR(a->h_path.dentry)) { ++ RevertFailure("lkup one %pd", a->dst_dentry); ++ return; ++ } ++ if (d_is_positive(a->h_path.dentry)) { ++ d_drop(a->h_path.dentry); ++ dput(a->h_path.dentry); ++ return; ++ } ++ ++ delegated = NULL; ++ rerr = vfsub_rename(a->dst_h_dir, a->h_dst, a->dst_h_dir, &a->h_path, ++ &delegated, a->flags); ++ if (unlikely(rerr == -EWOULDBLOCK)) { ++ pr_warn("cannot retry for NFSv4 delegation" ++ " for an internal rename\n"); ++ iput(delegated); ++ } ++ d_drop(a->h_path.dentry); ++ dput(a->h_path.dentry); ++ if (!rerr) ++ au_set_h_dptr(a->dst_dentry, a->btgt, dget(a->h_dst)); ++ else ++ RevertFailure("rename %pd", a->h_dst); ++} ++ ++static void au_ren_rev_whsrc(int err, struct au_ren_args *a) ++{ ++ int rerr; ++ ++ a->h_path.dentry = a->src_wh_dentry; ++ rerr = au_wh_unlink_dentry(a->src_h_dir, &a->h_path, a->src_dentry); ++ au_set_dbwh(a->src_dentry, a->src_bwh); ++ if (rerr) ++ RevertFailure("unlink %pd", a->src_wh_dentry); ++} ++#undef RevertFailure ++ ++/* ---------------------------------------------------------------------- */ ++ ++/* ++ * when we have to copyup the renaming entry, do it with the rename-target name ++ * in order to minimize the cost (the later actual rename is unnecessary). ++ * otherwise rename it on the target branch. ++ */ ++static int au_ren_or_cpup(struct au_ren_args *a) ++{ ++ int err; ++ struct dentry *d; ++ struct inode *delegated; ++ ++ d = a->src_dentry; ++ if (au_dbtop(d) == a->btgt) { ++ a->h_path.dentry = a->dst_h_dentry; ++ AuDebugOn(au_dbtop(d) != a->btgt); ++ delegated = NULL; ++ err = vfsub_rename(a->src_h_dir, au_h_dptr(d, a->btgt), ++ a->dst_h_dir, &a->h_path, &delegated, ++ a->flags); ++ if (unlikely(err == -EWOULDBLOCK)) { ++ pr_warn("cannot retry for NFSv4 delegation" ++ " for an internal rename\n"); ++ iput(delegated); ++ } ++ } else ++ BUG(); ++ ++ if (!err && a->h_dst) ++ /* it will be set to dinfo later */ ++ dget(a->h_dst); ++ ++ return err; ++} ++ ++/* cf. aufs_rmdir() */ ++static int au_ren_del_whtmp(struct au_ren_args *a) ++{ ++ int err; ++ struct inode *dir; ++ ++ dir = a->dst_dir; ++ SiMustAnyLock(dir->i_sb); ++ if (!au_nhash_test_longer_wh(&a->whlist, a->btgt, ++ au_sbi(dir->i_sb)->si_dirwh) ++ || au_test_fs_remote(a->h_dst->d_sb)) { ++ err = au_whtmp_rmdir(dir, a->btgt, a->h_dst, &a->whlist); ++ if (unlikely(err)) ++ pr_warn("failed removing whtmp dir %pd (%d), " ++ "ignored.\n", a->h_dst, err); ++ } else { ++ au_nhash_wh_free(&a->thargs->whlist); ++ a->thargs->whlist = a->whlist; ++ a->whlist.nh_num = 0; ++ au_whtmp_kick_rmdir(dir, a->btgt, a->h_dst, a->thargs); ++ dput(a->h_dst); ++ a->thargs = NULL; ++ } ++ ++ return 0; ++} ++ ++/* make it 'opaque' dir. */ ++static int au_ren_do_diropq(struct au_ren_args *a, int idx) ++{ ++ int err; ++ struct dentry *d, *diropq; ++#define src_or_dst(member) a->sd[idx].member ++ ++ err = 0; ++ d = src_or_dst(dentry); /* {src,dst}_dentry */ ++ src_or_dst(bdiropq) = au_dbdiropq(d); ++ src_or_dst(hinode) = au_hi(src_or_dst(inode), a->btgt); ++ au_hn_inode_lock_nested(src_or_dst(hinode), AuLsc_I_CHILD); ++ diropq = au_diropq_create(d, a->btgt); ++ au_hn_inode_unlock(src_or_dst(hinode)); ++ if (IS_ERR(diropq)) ++ err = PTR_ERR(diropq); ++ else ++ dput(diropq); ++ ++#undef src_or_dst_ ++ return err; ++} ++ ++static int au_ren_diropq(struct au_ren_args *a) ++{ ++ int err; ++ unsigned char always; ++ struct dentry *d; ++ ++ err = 0; ++ d = a->dst_dentry; /* already renamed on the branch */ ++ always = !!au_opt_test(au_mntflags(d->d_sb), ALWAYS_DIROPQ); ++ if (au_ftest_ren(a->auren_flags, ISDIR_SRC) ++ && !au_ftest_ren(a->auren_flags, DIRREN) ++ && a->btgt != au_dbdiropq(a->src_dentry) ++ && (a->dst_wh_dentry ++ || a->btgt <= au_dbdiropq(d) ++ /* hide the lower to keep xino */ ++ /* the lowers may not be a dir, but we hide them anyway */ ++ || a->btgt < au_dbbot(d) ++ || always)) { ++ AuDbg("here\n"); ++ err = au_ren_do_diropq(a, AuSRC); ++ if (unlikely(err)) ++ goto out; ++ au_fset_ren(a->auren_flags, DIROPQ_SRC); ++ } ++ if (!a->exchange) ++ goto out; /* success */ ++ ++ d = a->src_dentry; /* already renamed on the branch */ ++ if (au_ftest_ren(a->auren_flags, ISDIR_DST) ++ && a->btgt != au_dbdiropq(a->dst_dentry) ++ && (a->btgt < au_dbdiropq(d) ++ || a->btgt < au_dbbot(d) ++ || always)) { ++ AuDbgDentry(a->src_dentry); ++ AuDbgDentry(a->dst_dentry); ++ err = au_ren_do_diropq(a, AuDST); ++ if (unlikely(err)) ++ goto out_rev_src; ++ au_fset_ren(a->auren_flags, DIROPQ_DST); ++ } ++ goto out; /* success */ ++ ++out_rev_src: ++ AuDbg("err %d, reverting src\n", err); ++ au_ren_rev_diropq(err, a); ++out: ++ return err; ++} ++ ++static int do_rename(struct au_ren_args *a) ++{ ++ int err; ++ struct dentry *d, *h_d; ++ ++ if (!a->exchange) { ++ /* prepare workqueue args for asynchronous rmdir */ ++ h_d = a->dst_h_dentry; ++ if (au_ftest_ren(a->auren_flags, ISDIR_DST) ++ /* && !au_ftest_ren(a->auren_flags, DIRREN) */ ++ && d_is_positive(h_d)) { ++ err = -ENOMEM; ++ a->thargs = au_whtmp_rmdir_alloc(a->src_dentry->d_sb, ++ GFP_NOFS); ++ if (unlikely(!a->thargs)) ++ goto out; ++ a->h_dst = dget(h_d); ++ } ++ ++ /* create whiteout for src_dentry */ ++ if (au_ftest_ren(a->auren_flags, WHSRC)) { ++ a->src_bwh = au_dbwh(a->src_dentry); ++ AuDebugOn(a->src_bwh >= 0); ++ a->src_wh_dentry = au_wh_create(a->src_dentry, a->btgt, ++ a->src_h_parent); ++ err = PTR_ERR(a->src_wh_dentry); ++ if (IS_ERR(a->src_wh_dentry)) ++ goto out_thargs; ++ } ++ ++ /* lookup whiteout for dentry */ ++ if (au_ftest_ren(a->auren_flags, WHDST)) { ++ h_d = au_wh_lkup(a->dst_h_parent, ++ &a->dst_dentry->d_name, a->br); ++ err = PTR_ERR(h_d); ++ if (IS_ERR(h_d)) ++ goto out_whsrc; ++ if (d_is_negative(h_d)) ++ dput(h_d); ++ else ++ a->dst_wh_dentry = h_d; ++ } ++ ++ /* rename dentry to tmpwh */ ++ if (a->thargs) { ++ err = au_whtmp_ren(a->dst_h_dentry, a->br); ++ if (unlikely(err)) ++ goto out_whdst; ++ ++ d = a->dst_dentry; ++ au_set_h_dptr(d, a->btgt, NULL); ++ err = au_lkup_neg(d, a->btgt, /*wh*/0); ++ if (unlikely(err)) ++ goto out_whtmp; ++ a->dst_h_dentry = au_h_dptr(d, a->btgt); ++ } ++ } ++ ++ BUG_ON(d_is_positive(a->dst_h_dentry) && a->src_btop != a->btgt); ++#if 0 /* debugging */ ++ BUG_ON(!au_ftest_ren(a->auren_flags, DIRREN) ++ && d_is_positive(a->dst_h_dentry) ++ && a->src_btop != a->btgt); ++#endif ++ ++ /* rename by vfs_rename or cpup */ ++ err = au_ren_or_cpup(a); ++ if (unlikely(err)) ++ /* leave the copied-up one */ ++ goto out_whtmp; ++ ++ /* make dir opaque */ ++ err = au_ren_diropq(a); ++ if (unlikely(err)) ++ goto out_rename; ++ ++ /* update target timestamps */ ++ if (a->exchange) { ++ AuDebugOn(au_dbtop(a->dst_dentry) != a->btgt); ++ a->h_path.dentry = au_h_dptr(a->dst_dentry, a->btgt); ++ vfsub_update_h_iattr(&a->h_path, /*did*/NULL); /*ignore*/ ++ a->dst_inode->i_ctime = d_inode(a->h_path.dentry)->i_ctime; ++ } ++ AuDebugOn(au_dbtop(a->src_dentry) != a->btgt); ++ a->h_path.dentry = au_h_dptr(a->src_dentry, a->btgt); ++ vfsub_update_h_iattr(&a->h_path, /*did*/NULL); /*ignore*/ ++ a->src_inode->i_ctime = d_inode(a->h_path.dentry)->i_ctime; ++ ++ if (!a->exchange) { ++ /* remove whiteout for dentry */ ++ if (a->dst_wh_dentry) { ++ a->h_path.dentry = a->dst_wh_dentry; ++ err = au_wh_unlink_dentry(a->dst_h_dir, &a->h_path, ++ a->dst_dentry); ++ if (unlikely(err)) ++ goto out_diropq; ++ } ++ ++ /* remove whtmp */ ++ if (a->thargs) ++ au_ren_del_whtmp(a); /* ignore this error */ ++ ++ au_fhsm_wrote(a->src_dentry->d_sb, a->btgt, /*force*/0); ++ } ++ err = 0; ++ goto out_success; ++ ++out_diropq: ++ au_ren_rev_diropq(err, a); ++out_rename: ++ au_ren_rev_rename(err, a); ++ dput(a->h_dst); ++out_whtmp: ++ if (a->thargs) ++ au_ren_rev_whtmp(err, a); ++out_whdst: ++ dput(a->dst_wh_dentry); ++ a->dst_wh_dentry = NULL; ++out_whsrc: ++ if (a->src_wh_dentry) ++ au_ren_rev_whsrc(err, a); ++out_success: ++ dput(a->src_wh_dentry); ++ dput(a->dst_wh_dentry); ++out_thargs: ++ if (a->thargs) { ++ dput(a->h_dst); ++ au_whtmp_rmdir_free(a->thargs); ++ a->thargs = NULL; ++ } ++out: ++ return err; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++/* ++ * test if @dentry dir can be rename destination or not. ++ * success means, it is a logically empty dir. ++ */ ++static int may_rename_dstdir(struct dentry *dentry, struct au_nhash *whlist) ++{ ++ return au_test_empty(dentry, whlist); ++} ++ ++/* ++ * test if @a->src_dentry dir can be rename source or not. ++ * if it can, return 0. ++ * success means, ++ * - it is a logically empty dir. ++ * - or, it exists on writable branch and has no children including whiteouts ++ * on the lower branch unless DIRREN is on. ++ */ ++static int may_rename_srcdir(struct au_ren_args *a) ++{ ++ int err; ++ unsigned int rdhash; ++ aufs_bindex_t btop, btgt; ++ struct dentry *dentry; ++ struct super_block *sb; ++ struct au_sbinfo *sbinfo; ++ ++ dentry = a->src_dentry; ++ sb = dentry->d_sb; ++ sbinfo = au_sbi(sb); ++ if (au_opt_test(sbinfo->si_mntflags, DIRREN)) ++ au_fset_ren(a->auren_flags, DIRREN); ++ ++ btgt = a->btgt; ++ btop = au_dbtop(dentry); ++ if (btop != btgt) { ++ struct au_nhash whlist; ++ ++ SiMustAnyLock(sb); ++ rdhash = sbinfo->si_rdhash; ++ if (!rdhash) ++ rdhash = au_rdhash_est(au_dir_size(/*file*/NULL, ++ dentry)); ++ err = au_nhash_alloc(&whlist, rdhash, GFP_NOFS); ++ if (unlikely(err)) ++ goto out; ++ err = au_test_empty(dentry, &whlist); ++ au_nhash_wh_free(&whlist); ++ goto out; ++ } ++ ++ if (btop == au_dbtaildir(dentry)) ++ return 0; /* success */ ++ ++ err = au_test_empty_lower(dentry); ++ ++out: ++ if (err == -ENOTEMPTY) { ++ if (au_ftest_ren(a->auren_flags, DIRREN)) { ++ err = 0; ++ } else { ++ AuWarn1("renaming dir who has child(ren) on multiple " ++ "branches, is not supported\n"); ++ err = -EXDEV; ++ } ++ } ++ return err; ++} ++ ++/* side effect: sets whlist and h_dentry */ ++static int au_ren_may_dir(struct au_ren_args *a) ++{ ++ int err; ++ unsigned int rdhash; ++ struct dentry *d; ++ ++ d = a->dst_dentry; ++ SiMustAnyLock(d->d_sb); ++ ++ err = 0; ++ if (au_ftest_ren(a->auren_flags, ISDIR_DST) && a->dst_inode) { ++ rdhash = au_sbi(d->d_sb)->si_rdhash; ++ if (!rdhash) ++ rdhash = au_rdhash_est(au_dir_size(/*file*/NULL, d)); ++ err = au_nhash_alloc(&a->whlist, rdhash, GFP_NOFS); ++ if (unlikely(err)) ++ goto out; ++ ++ if (!a->exchange) { ++ au_set_dbtop(d, a->dst_btop); ++ err = may_rename_dstdir(d, &a->whlist); ++ au_set_dbtop(d, a->btgt); ++ } else ++ err = may_rename_srcdir(a); ++ } ++ a->dst_h_dentry = au_h_dptr(d, au_dbtop(d)); ++ if (unlikely(err)) ++ goto out; ++ ++ d = a->src_dentry; ++ a->src_h_dentry = au_h_dptr(d, au_dbtop(d)); ++ if (au_ftest_ren(a->auren_flags, ISDIR_SRC)) { ++ err = may_rename_srcdir(a); ++ if (unlikely(err)) { ++ au_nhash_wh_free(&a->whlist); ++ a->whlist.nh_num = 0; ++ } ++ } ++out: ++ return err; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++/* ++ * simple tests for rename. ++ * following the checks in vfs, plus the parent-child relationship. ++ */ ++static int au_may_ren(struct au_ren_args *a) ++{ ++ int err, isdir; ++ struct inode *h_inode; ++ ++ if (a->src_btop == a->btgt) { ++ err = au_may_del(a->src_dentry, a->btgt, a->src_h_parent, ++ au_ftest_ren(a->auren_flags, ISDIR_SRC)); ++ if (unlikely(err)) ++ goto out; ++ err = -EINVAL; ++ if (unlikely(a->src_h_dentry == a->h_trap)) ++ goto out; ++ } ++ ++ err = 0; ++ if (a->dst_btop != a->btgt) ++ goto out; ++ ++ err = -ENOTEMPTY; ++ if (unlikely(a->dst_h_dentry == a->h_trap)) ++ goto out; ++ ++ err = -EIO; ++ isdir = !!au_ftest_ren(a->auren_flags, ISDIR_DST); ++ if (d_really_is_negative(a->dst_dentry)) { ++ if (d_is_negative(a->dst_h_dentry)) ++ err = au_may_add(a->dst_dentry, a->btgt, ++ a->dst_h_parent, isdir); ++ } else { ++ if (unlikely(d_is_negative(a->dst_h_dentry))) ++ goto out; ++ h_inode = d_inode(a->dst_h_dentry); ++ if (h_inode->i_nlink) ++ err = au_may_del(a->dst_dentry, a->btgt, ++ a->dst_h_parent, isdir); ++ } ++ ++out: ++ if (unlikely(err == -ENOENT || err == -EEXIST)) ++ err = -EIO; ++ AuTraceErr(err); ++ return err; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++/* ++ * locking order ++ * (VFS) ++ * - src_dir and dir by lock_rename() ++ * - inode if exists ++ * (aufs) ++ * - lock all ++ * + src_dentry and dentry by aufs_read_and_write_lock2() which calls, ++ * + si_read_lock ++ * + di_write_lock2_child() ++ * + di_write_lock_child() ++ * + ii_write_lock_child() ++ * + di_write_lock_child2() ++ * + ii_write_lock_child2() ++ * + src_parent and parent ++ * + di_write_lock_parent() ++ * + ii_write_lock_parent() ++ * + di_write_lock_parent2() ++ * + ii_write_lock_parent2() ++ * + lower src_dir and dir by vfsub_lock_rename() ++ * + verify the every relationships between child and parent. if any ++ * of them failed, unlock all and return -EBUSY. ++ */ ++static void au_ren_unlock(struct au_ren_args *a) ++{ ++ vfsub_unlock_rename(a->src_h_parent, a->src_hdir, ++ a->dst_h_parent, a->dst_hdir); ++ if (au_ftest_ren(a->auren_flags, DIRREN) ++ && a->h_root) ++ au_hn_inode_unlock(a->h_root); ++ if (au_ftest_ren(a->auren_flags, MNT_WRITE)) ++ vfsub_mnt_drop_write(au_br_mnt(a->br)); ++} ++ ++static int au_ren_lock(struct au_ren_args *a) ++{ ++ int err; ++ unsigned int udba; ++ ++ err = 0; ++ a->src_h_parent = au_h_dptr(a->src_parent, a->btgt); ++ a->src_hdir = au_hi(a->src_dir, a->btgt); ++ a->dst_h_parent = au_h_dptr(a->dst_parent, a->btgt); ++ a->dst_hdir = au_hi(a->dst_dir, a->btgt); ++ ++ err = vfsub_mnt_want_write(au_br_mnt(a->br)); ++ if (unlikely(err)) ++ goto out; ++ au_fset_ren(a->auren_flags, MNT_WRITE); ++ if (au_ftest_ren(a->auren_flags, DIRREN)) { ++ struct dentry *root; ++ struct inode *dir; ++ ++ /* ++ * sbinfo is already locked, so this ii_read_lock is ++ * unnecessary. but our debugging feature checks it. ++ */ ++ root = a->src_inode->i_sb->s_root; ++ if (root != a->src_parent && root != a->dst_parent) { ++ dir = d_inode(root); ++ ii_read_lock_parent3(dir); ++ a->h_root = au_hi(dir, a->btgt); ++ ii_read_unlock(dir); ++ au_hn_inode_lock_nested(a->h_root, AuLsc_I_PARENT3); ++ } ++ } ++ a->h_trap = vfsub_lock_rename(a->src_h_parent, a->src_hdir, ++ a->dst_h_parent, a->dst_hdir); ++ udba = au_opt_udba(a->src_dentry->d_sb); ++ if (unlikely(a->src_hdir->hi_inode != d_inode(a->src_h_parent) ++ || a->dst_hdir->hi_inode != d_inode(a->dst_h_parent))) ++ err = au_busy_or_stale(); ++ if (!err && au_dbtop(a->src_dentry) == a->btgt) ++ err = au_h_verify(a->src_h_dentry, udba, ++ d_inode(a->src_h_parent), a->src_h_parent, ++ a->br); ++ if (!err && au_dbtop(a->dst_dentry) == a->btgt) ++ err = au_h_verify(a->dst_h_dentry, udba, ++ d_inode(a->dst_h_parent), a->dst_h_parent, ++ a->br); ++ if (!err) ++ goto out; /* success */ ++ ++ err = au_busy_or_stale(); ++ au_ren_unlock(a); ++ ++out: ++ return err; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++static void au_ren_refresh_dir(struct au_ren_args *a) ++{ ++ struct inode *dir; ++ ++ dir = a->dst_dir; ++ inode_inc_iversion(dir); ++ if (au_ftest_ren(a->auren_flags, ISDIR_SRC)) { ++ /* is this updating defined in POSIX? */ ++ au_cpup_attr_timesizes(a->src_inode); ++ au_cpup_attr_nlink(dir, /*force*/1); ++ } ++ au_dir_ts(dir, a->btgt); ++ ++ if (a->exchange) { ++ dir = a->src_dir; ++ inode_inc_iversion(dir); ++ if (au_ftest_ren(a->auren_flags, ISDIR_DST)) { ++ /* is this updating defined in POSIX? */ ++ au_cpup_attr_timesizes(a->dst_inode); ++ au_cpup_attr_nlink(dir, /*force*/1); ++ } ++ au_dir_ts(dir, a->btgt); ++ } ++ ++ if (au_ftest_ren(a->auren_flags, ISSAMEDIR)) ++ return; ++ ++ dir = a->src_dir; ++ inode_inc_iversion(dir); ++ if (au_ftest_ren(a->auren_flags, ISDIR_SRC)) ++ au_cpup_attr_nlink(dir, /*force*/1); ++ au_dir_ts(dir, a->btgt); ++} ++ ++static void au_ren_refresh(struct au_ren_args *a) ++{ ++ aufs_bindex_t bbot, bindex; ++ struct dentry *d, *h_d; ++ struct inode *i, *h_i; ++ struct super_block *sb; ++ ++ d = a->dst_dentry; ++ d_drop(d); ++ if (a->h_dst) ++ /* already dget-ed by au_ren_or_cpup() */ ++ au_set_h_dptr(d, a->btgt, a->h_dst); ++ ++ i = a->dst_inode; ++ if (i) { ++ if (!a->exchange) { ++ if (!au_ftest_ren(a->auren_flags, ISDIR_DST)) ++ vfsub_drop_nlink(i); ++ else { ++ vfsub_dead_dir(i); ++ au_cpup_attr_timesizes(i); ++ } ++ au_update_dbrange(d, /*do_put_zero*/1); ++ } else ++ au_cpup_attr_nlink(i, /*force*/1); ++ } else { ++ bbot = a->btgt; ++ for (bindex = au_dbtop(d); bindex < bbot; bindex++) ++ au_set_h_dptr(d, bindex, NULL); ++ bbot = au_dbbot(d); ++ for (bindex = a->btgt + 1; bindex <= bbot; bindex++) ++ au_set_h_dptr(d, bindex, NULL); ++ au_update_dbrange(d, /*do_put_zero*/0); ++ } ++ ++ if (a->exchange ++ || au_ftest_ren(a->auren_flags, DIRREN)) { ++ d_drop(a->src_dentry); ++ if (au_ftest_ren(a->auren_flags, DIRREN)) ++ au_set_dbwh(a->src_dentry, -1); ++ return; ++ } ++ ++ d = a->src_dentry; ++ au_set_dbwh(d, -1); ++ bbot = au_dbbot(d); ++ for (bindex = a->btgt + 1; bindex <= bbot; bindex++) { ++ h_d = au_h_dptr(d, bindex); ++ if (h_d) ++ au_set_h_dptr(d, bindex, NULL); ++ } ++ au_set_dbbot(d, a->btgt); ++ ++ sb = d->d_sb; ++ i = a->src_inode; ++ if (au_opt_test(au_mntflags(sb), PLINK) && au_plink_test(i)) ++ return; /* success */ ++ ++ bbot = au_ibbot(i); ++ for (bindex = a->btgt + 1; bindex <= bbot; bindex++) { ++ h_i = au_h_iptr(i, bindex); ++ if (h_i) { ++ au_xino_write(sb, bindex, h_i->i_ino, /*ino*/0); ++ /* ignore this error */ ++ au_set_h_iptr(i, bindex, NULL, 0); ++ } ++ } ++ au_set_ibbot(i, a->btgt); ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++/* mainly for link(2) and rename(2) */ ++int au_wbr(struct dentry *dentry, aufs_bindex_t btgt) ++{ ++ aufs_bindex_t bdiropq, bwh; ++ struct dentry *parent; ++ struct au_branch *br; ++ ++ parent = dentry->d_parent; ++ IMustLock(d_inode(parent)); /* dir is locked */ ++ ++ bdiropq = au_dbdiropq(parent); ++ bwh = au_dbwh(dentry); ++ br = au_sbr(dentry->d_sb, btgt); ++ if (au_br_rdonly(br) ++ || (0 <= bdiropq && bdiropq < btgt) ++ || (0 <= bwh && bwh < btgt)) ++ btgt = -1; ++ ++ AuDbg("btgt %d\n", btgt); ++ return btgt; ++} ++ ++/* sets src_btop, dst_btop and btgt */ ++static int au_ren_wbr(struct au_ren_args *a) ++{ ++ int err; ++ struct au_wr_dir_args wr_dir_args = { ++ /* .force_btgt = -1, */ ++ .flags = AuWrDir_ADD_ENTRY ++ }; ++ ++ a->src_btop = au_dbtop(a->src_dentry); ++ a->dst_btop = au_dbtop(a->dst_dentry); ++ if (au_ftest_ren(a->auren_flags, ISDIR_SRC) ++ || au_ftest_ren(a->auren_flags, ISDIR_DST)) ++ au_fset_wrdir(wr_dir_args.flags, ISDIR); ++ wr_dir_args.force_btgt = a->src_btop; ++ if (a->dst_inode && a->dst_btop < a->src_btop) ++ wr_dir_args.force_btgt = a->dst_btop; ++ wr_dir_args.force_btgt = au_wbr(a->dst_dentry, wr_dir_args.force_btgt); ++ err = au_wr_dir(a->dst_dentry, a->src_dentry, &wr_dir_args); ++ a->btgt = err; ++ if (a->exchange) ++ au_update_dbtop(a->dst_dentry); ++ ++ return err; ++} ++ ++static void au_ren_dt(struct au_ren_args *a) ++{ ++ a->h_path.dentry = a->src_h_parent; ++ au_dtime_store(a->src_dt + AuPARENT, a->src_parent, &a->h_path); ++ if (!au_ftest_ren(a->auren_flags, ISSAMEDIR)) { ++ a->h_path.dentry = a->dst_h_parent; ++ au_dtime_store(a->dst_dt + AuPARENT, a->dst_parent, &a->h_path); ++ } ++ ++ au_fclr_ren(a->auren_flags, DT_DSTDIR); ++ if (!au_ftest_ren(a->auren_flags, ISDIR_SRC) ++ && !a->exchange) ++ return; ++ ++ a->h_path.dentry = a->src_h_dentry; ++ au_dtime_store(a->src_dt + AuCHILD, a->src_dentry, &a->h_path); ++ if (d_is_positive(a->dst_h_dentry)) { ++ au_fset_ren(a->auren_flags, DT_DSTDIR); ++ a->h_path.dentry = a->dst_h_dentry; ++ au_dtime_store(a->dst_dt + AuCHILD, a->dst_dentry, &a->h_path); ++ } ++} ++ ++static void au_ren_rev_dt(int err, struct au_ren_args *a) ++{ ++ struct dentry *h_d; ++ struct inode *h_inode; ++ ++ au_dtime_revert(a->src_dt + AuPARENT); ++ if (!au_ftest_ren(a->auren_flags, ISSAMEDIR)) ++ au_dtime_revert(a->dst_dt + AuPARENT); ++ ++ if (au_ftest_ren(a->auren_flags, ISDIR_SRC) && err != -EIO) { ++ h_d = a->src_dt[AuCHILD].dt_h_path.dentry; ++ h_inode = d_inode(h_d); ++ inode_lock_nested(h_inode, AuLsc_I_CHILD); ++ au_dtime_revert(a->src_dt + AuCHILD); ++ inode_unlock(h_inode); ++ ++ if (au_ftest_ren(a->auren_flags, DT_DSTDIR)) { ++ h_d = a->dst_dt[AuCHILD].dt_h_path.dentry; ++ h_inode = d_inode(h_d); ++ inode_lock_nested(h_inode, AuLsc_I_CHILD); ++ au_dtime_revert(a->dst_dt + AuCHILD); ++ inode_unlock(h_inode); ++ } ++ } ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++int aufs_rename(struct user_namespace *userns, ++ struct inode *_src_dir, struct dentry *_src_dentry, ++ struct inode *_dst_dir, struct dentry *_dst_dentry, ++ unsigned int _flags) ++{ ++ int err, lock_flags; ++ void *rev; ++ /* reduce stack space */ ++ struct au_ren_args *a; ++ struct au_pin pin; ++ ++ AuDbg("%pd, %pd, 0x%x\n", _src_dentry, _dst_dentry, _flags); ++ IMustLock(_src_dir); ++ IMustLock(_dst_dir); ++ ++ err = -EINVAL; ++ if (unlikely(_flags & RENAME_WHITEOUT)) ++ goto out; ++ ++ err = -ENOMEM; ++ BUILD_BUG_ON(sizeof(*a) > PAGE_SIZE); ++ a = kzalloc(sizeof(*a), GFP_NOFS); ++ if (unlikely(!a)) ++ goto out; ++ ++ a->flags = _flags; ++ BUILD_BUG_ON(sizeof(a->exchange) == sizeof(u8) ++ && RENAME_EXCHANGE > U8_MAX); ++ a->exchange = _flags & RENAME_EXCHANGE; ++ a->src_dir = _src_dir; ++ a->src_dentry = _src_dentry; ++ a->src_inode = NULL; ++ if (d_really_is_positive(a->src_dentry)) ++ a->src_inode = d_inode(a->src_dentry); ++ a->src_parent = a->src_dentry->d_parent; /* dir inode is locked */ ++ a->dst_dir = _dst_dir; ++ a->dst_dentry = _dst_dentry; ++ a->dst_inode = NULL; ++ if (d_really_is_positive(a->dst_dentry)) ++ a->dst_inode = d_inode(a->dst_dentry); ++ a->dst_parent = a->dst_dentry->d_parent; /* dir inode is locked */ ++ if (a->dst_inode) { ++ /* ++ * if EXCHANGE && src is non-dir && dst is dir, ++ * dst is not locked. ++ */ ++ /* IMustLock(a->dst_inode); */ ++ au_igrab(a->dst_inode); ++ } ++ ++ err = -ENOTDIR; ++ lock_flags = AuLock_FLUSH | AuLock_NOPLM | AuLock_GEN; ++ if (d_is_dir(a->src_dentry)) { ++ au_fset_ren(a->auren_flags, ISDIR_SRC); ++ if (unlikely(!a->exchange ++ && d_really_is_positive(a->dst_dentry) ++ && !d_is_dir(a->dst_dentry))) ++ goto out_free; ++ lock_flags |= AuLock_DIRS; ++ } ++ if (a->dst_inode && d_is_dir(a->dst_dentry)) { ++ au_fset_ren(a->auren_flags, ISDIR_DST); ++ if (unlikely(!a->exchange ++ && d_really_is_positive(a->src_dentry) ++ && !d_is_dir(a->src_dentry))) ++ goto out_free; ++ lock_flags |= AuLock_DIRS; ++ } ++ err = aufs_read_and_write_lock2(a->dst_dentry, a->src_dentry, ++ lock_flags); ++ if (unlikely(err)) ++ goto out_free; ++ ++ err = au_d_hashed_positive(a->src_dentry); ++ if (unlikely(err)) ++ goto out_unlock; ++ err = -ENOENT; ++ if (a->dst_inode) { ++ /* ++ * If it is a dir, VFS unhash it before this ++ * function. It means we cannot rely upon d_unhashed(). ++ */ ++ if (unlikely(!a->dst_inode->i_nlink)) ++ goto out_unlock; ++ if (!au_ftest_ren(a->auren_flags, ISDIR_DST)) { ++ err = au_d_hashed_positive(a->dst_dentry); ++ if (unlikely(err && !a->exchange)) ++ goto out_unlock; ++ } else if (unlikely(IS_DEADDIR(a->dst_inode))) ++ goto out_unlock; ++ } else if (unlikely(d_unhashed(a->dst_dentry))) ++ goto out_unlock; ++ ++ /* ++ * is it possible? ++ * yes, it happened (in linux-3.3-rcN) but I don't know why. ++ * there may exist a problem somewhere else. ++ */ ++ err = -EINVAL; ++ if (unlikely(d_inode(a->dst_parent) == d_inode(a->src_dentry))) ++ goto out_unlock; ++ ++ au_fset_ren(a->auren_flags, ISSAMEDIR); /* temporary */ ++ di_write_lock_parent(a->dst_parent); ++ ++ /* which branch we process */ ++ err = au_ren_wbr(a); ++ if (unlikely(err < 0)) ++ goto out_parent; ++ a->br = au_sbr(a->dst_dentry->d_sb, a->btgt); ++ a->h_path.mnt = au_br_mnt(a->br); ++ ++ /* are they available to be renamed */ ++ err = au_ren_may_dir(a); ++ if (unlikely(err)) ++ goto out_children; ++ ++ /* prepare the writable parent dir on the same branch */ ++ if (a->dst_btop == a->btgt) { ++ au_fset_ren(a->auren_flags, WHDST); ++ } else { ++ err = au_cpup_dirs(a->dst_dentry, a->btgt); ++ if (unlikely(err)) ++ goto out_children; ++ } ++ ++ err = 0; ++ if (!a->exchange) { ++ if (a->src_dir != a->dst_dir) { ++ /* ++ * this temporary unlock is safe, ++ * because both dir->i_mutex are locked. ++ */ ++ di_write_unlock(a->dst_parent); ++ di_write_lock_parent(a->src_parent); ++ err = au_wr_dir_need_wh(a->src_dentry, ++ au_ftest_ren(a->auren_flags, ++ ISDIR_SRC), ++ &a->btgt); ++ di_write_unlock(a->src_parent); ++ di_write_lock2_parent(a->src_parent, a->dst_parent, ++ /*isdir*/1); ++ au_fclr_ren(a->auren_flags, ISSAMEDIR); ++ } else ++ err = au_wr_dir_need_wh(a->src_dentry, ++ au_ftest_ren(a->auren_flags, ++ ISDIR_SRC), ++ &a->btgt); ++ } ++ if (unlikely(err < 0)) ++ goto out_children; ++ if (err) ++ au_fset_ren(a->auren_flags, WHSRC); ++ ++ /* cpup src */ ++ if (a->src_btop != a->btgt) { ++ err = au_pin(&pin, a->src_dentry, a->btgt, ++ au_opt_udba(a->src_dentry->d_sb), ++ AuPin_DI_LOCKED | AuPin_MNT_WRITE); ++ if (!err) { ++ struct au_cp_generic cpg = { ++ .dentry = a->src_dentry, ++ .bdst = a->btgt, ++ .bsrc = a->src_btop, ++ .len = -1, ++ .pin = &pin, ++ .flags = AuCpup_DTIME | AuCpup_HOPEN ++ }; ++ AuDebugOn(au_dbtop(a->src_dentry) != a->src_btop); ++ err = au_sio_cpup_simple(&cpg); ++ au_unpin(&pin); ++ } ++ if (unlikely(err)) ++ goto out_children; ++ a->src_btop = a->btgt; ++ a->src_h_dentry = au_h_dptr(a->src_dentry, a->btgt); ++ if (!a->exchange) ++ au_fset_ren(a->auren_flags, WHSRC); ++ } ++ ++ /* cpup dst */ ++ if (a->exchange && a->dst_inode ++ && a->dst_btop != a->btgt) { ++ err = au_pin(&pin, a->dst_dentry, a->btgt, ++ au_opt_udba(a->dst_dentry->d_sb), ++ AuPin_DI_LOCKED | AuPin_MNT_WRITE); ++ if (!err) { ++ struct au_cp_generic cpg = { ++ .dentry = a->dst_dentry, ++ .bdst = a->btgt, ++ .bsrc = a->dst_btop, ++ .len = -1, ++ .pin = &pin, ++ .flags = AuCpup_DTIME | AuCpup_HOPEN ++ }; ++ err = au_sio_cpup_simple(&cpg); ++ au_unpin(&pin); ++ } ++ if (unlikely(err)) ++ goto out_children; ++ a->dst_btop = a->btgt; ++ a->dst_h_dentry = au_h_dptr(a->dst_dentry, a->btgt); ++ } ++ ++ /* lock them all */ ++ err = au_ren_lock(a); ++ if (unlikely(err)) ++ /* leave the copied-up one */ ++ goto out_children; ++ ++ if (!a->exchange) { ++ if (!au_opt_test(au_mntflags(a->dst_dir->i_sb), UDBA_NONE)) ++ err = au_may_ren(a); ++ else if (unlikely(a->dst_dentry->d_name.len > AUFS_MAX_NAMELEN)) ++ err = -ENAMETOOLONG; ++ if (unlikely(err)) ++ goto out_hdir; ++ } ++ ++ /* store timestamps to be revertible */ ++ au_ren_dt(a); ++ ++ /* store dirren info */ ++ if (au_ftest_ren(a->auren_flags, DIRREN)) { ++ err = au_dr_rename(a->src_dentry, a->btgt, ++ &a->dst_dentry->d_name, &rev); ++ AuTraceErr(err); ++ if (unlikely(err)) ++ goto out_dt; ++ } ++ ++ /* here we go */ ++ err = do_rename(a); ++ if (unlikely(err)) ++ goto out_dirren; ++ ++ if (au_ftest_ren(a->auren_flags, DIRREN)) ++ au_dr_rename_fin(a->src_dentry, a->btgt, rev); ++ ++ /* update dir attributes */ ++ au_ren_refresh_dir(a); ++ ++ /* dput/iput all lower dentries */ ++ au_ren_refresh(a); ++ ++ goto out_hdir; /* success */ ++ ++out_dirren: ++ if (au_ftest_ren(a->auren_flags, DIRREN)) ++ au_dr_rename_rev(a->src_dentry, a->btgt, rev); ++out_dt: ++ au_ren_rev_dt(err, a); ++out_hdir: ++ au_ren_unlock(a); ++out_children: ++ au_nhash_wh_free(&a->whlist); ++ if (err && a->dst_inode && a->dst_btop != a->btgt) { ++ AuDbg("btop %d, btgt %d\n", a->dst_btop, a->btgt); ++ au_set_h_dptr(a->dst_dentry, a->btgt, NULL); ++ au_set_dbtop(a->dst_dentry, a->dst_btop); ++ } ++out_parent: ++ if (!err) { ++ if (d_unhashed(a->src_dentry)) ++ au_fset_ren(a->auren_flags, DROPPED_SRC); ++ if (d_unhashed(a->dst_dentry)) ++ au_fset_ren(a->auren_flags, DROPPED_DST); ++ if (!a->exchange) ++ d_move(a->src_dentry, a->dst_dentry); ++ else { ++ d_exchange(a->src_dentry, a->dst_dentry); ++ if (au_ftest_ren(a->auren_flags, DROPPED_DST)) ++ d_drop(a->dst_dentry); ++ } ++ if (au_ftest_ren(a->auren_flags, DROPPED_SRC)) ++ d_drop(a->src_dentry); ++ } else { ++ au_update_dbtop(a->dst_dentry); ++ if (!a->dst_inode) ++ d_drop(a->dst_dentry); ++ } ++ if (au_ftest_ren(a->auren_flags, ISSAMEDIR)) ++ di_write_unlock(a->dst_parent); ++ else ++ di_write_unlock2(a->src_parent, a->dst_parent); ++out_unlock: ++ aufs_read_and_write_unlock2(a->dst_dentry, a->src_dentry); ++out_free: ++ iput(a->dst_inode); ++ if (a->thargs) ++ au_whtmp_rmdir_free(a->thargs); ++ au_kfree_rcu(a); ++out: ++ AuTraceErr(err); ++ return err; ++} +diff -Naur linux-5.15/fs/aufs/Kconfig aufs5-linux-aufs5.15/fs/aufs/Kconfig +--- linux-5.15/fs/aufs/Kconfig 1970-01-01 03:00:00.000000000 +0300 ++++ aufs5-linux-aufs5.15/fs/aufs/Kconfig 2022-03-07 13:48:09.000000000 +0300 +@@ -0,0 +1,199 @@ ++# SPDX-License-Identifier: GPL-2.0 ++config AUFS_FS ++ bool "Aufs (Advanced multi layered unification filesystem) support" ++ help ++ Aufs is a stackable unification filesystem such as Unionfs, ++ which unifies several directories and provides a merged single ++ directory. ++ In the early days, aufs was entirely re-designed and ++ re-implemented Unionfs Version 1.x series. Introducing many ++ original ideas, approaches and improvements, it becomes totally ++ different from Unionfs while keeping the basic features. ++ ++if AUFS_FS ++choice ++ prompt "Maximum number of branches" ++ default AUFS_BRANCH_MAX_127 ++ help ++ Specifies the maximum number of branches (or member directories) ++ in a single aufs. The larger value consumes more system ++ resources and has a minor impact to performance. ++config AUFS_BRANCH_MAX_127 ++ bool "127" ++ help ++ Specifies the maximum number of branches (or member directories) ++ in a single aufs. The larger value consumes more system ++ resources and has a minor impact to performance. ++config AUFS_BRANCH_MAX_511 ++ bool "511" ++ help ++ Specifies the maximum number of branches (or member directories) ++ in a single aufs. The larger value consumes more system ++ resources and has a minor impact to performance. ++config AUFS_BRANCH_MAX_1023 ++ bool "1023" ++ help ++ Specifies the maximum number of branches (or member directories) ++ in a single aufs. The larger value consumes more system ++ resources and has a minor impact to performance. ++config AUFS_BRANCH_MAX_32767 ++ bool "32767" ++ help ++ Specifies the maximum number of branches (or member directories) ++ in a single aufs. The larger value consumes more system ++ resources and has a minor impact to performance. ++endchoice ++ ++config AUFS_SBILIST ++ bool ++ depends on AUFS_MAGIC_SYSRQ || PROC_FS ++ default y ++ help ++ Automatic configuration for internal use. ++ When aufs supports Magic SysRq or /proc, enabled automatically. ++ ++config AUFS_HNOTIFY ++ bool "Detect direct branch access (bypassing aufs)" ++ help ++ If you want to modify files on branches directly, eg. bypassing aufs, ++ and want aufs to detect the changes of them fully, then enable this ++ option and use 'udba=notify' mount option. ++ Currently there is only one available configuration, "fsnotify". ++ It will have a negative impact to the performance. ++ See detail in aufs.5. ++ ++choice ++ prompt "method" if AUFS_HNOTIFY ++ default AUFS_HFSNOTIFY ++config AUFS_HFSNOTIFY ++ bool "fsnotify" ++ select FSNOTIFY ++endchoice ++ ++config AUFS_EXPORT ++ bool "NFS-exportable aufs" ++ depends on EXPORTFS = y ++ help ++ If you want to export your mounted aufs via NFS, then enable this ++ option. There are several requirements for this configuration. ++ See detail in aufs.5. ++ ++config AUFS_INO_T_64 ++ bool ++ depends on AUFS_EXPORT ++ depends on 64BIT && !(ALPHA || S390) ++ default y ++ help ++ Automatic configuration for internal use. ++ /* typedef unsigned long/int __kernel_ino_t */ ++ /* alpha and s390x are int */ ++ ++config AUFS_XATTR ++ bool "support for XATTR/EA (including Security Labels)" ++ help ++ If your branch fs supports XATTR/EA and you want to make them ++ available in aufs too, then enable this opsion and specify the ++ branch attributes for EA. ++ See detail in aufs.5. ++ ++config AUFS_FHSM ++ bool "File-based Hierarchical Storage Management" ++ help ++ Hierarchical Storage Management (or HSM) is a well-known feature ++ in the storage world. Aufs provides this feature as file-based. ++ with multiple branches. ++ These multiple branches are prioritized, ie. the topmost one ++ should be the fastest drive and be used heavily. ++ ++config AUFS_RDU ++ bool "Readdir in userspace" ++ help ++ Aufs has two methods to provide a merged view for a directory, ++ by a user-space library and by kernel-space natively. The latter ++ is always enabled but sometimes large and slow. ++ If you enable this option, install the library in aufs2-util ++ package, and set some environment variables for your readdir(3), ++ then the work will be handled in user-space which generally ++ shows better performance in most cases. ++ See detail in aufs.5. ++ ++config AUFS_DIRREN ++ bool "Workaround for rename(2)-ing a directory" ++ help ++ By default, aufs returns EXDEV error in renameing a dir who has ++ his child on the lower branch, since it is a bad idea to issue ++ rename(2) internally for every lower branch. But user may not ++ accept this behaviour. So here is a workaround to allow such ++ rename(2) and store some extra infromation on the writable ++ branch. Obviously this costs high (and I don't like it). ++ To use this feature, you need to enable this configuration AND ++ to specify the mount option `dirren.' ++ See details in aufs.5 and the design documents. ++ ++config AUFS_SHWH ++ bool "Show whiteouts" ++ help ++ If you want to make the whiteouts in aufs visible, then enable ++ this option and specify 'shwh' mount option. Although it may ++ sounds like philosophy or something, but in technically it ++ simply shows the name of whiteout with keeping its behaviour. ++ ++config AUFS_BR_RAMFS ++ bool "Ramfs (initramfs/rootfs) as an aufs branch" ++ help ++ If you want to use ramfs as an aufs branch fs, then enable this ++ option. Generally tmpfs is recommended. ++ Aufs prohibited them to be a branch fs by default, because ++ initramfs becomes unusable after switch_root or something ++ generally. If you sets initramfs as an aufs branch and boot your ++ system by switch_root, you will meet a problem easily since the ++ files in initramfs may be inaccessible. ++ Unless you are going to use ramfs as an aufs branch fs without ++ switch_root or something, leave it N. ++ ++config AUFS_BR_FUSE ++ bool "Fuse fs as an aufs branch" ++ depends on FUSE_FS ++ select AUFS_POLL ++ help ++ If you want to use fuse-based userspace filesystem as an aufs ++ branch fs, then enable this option. ++ It implements the internal poll(2) operation which is ++ implemented by fuse only (curretnly). ++ ++config AUFS_POLL ++ bool ++ help ++ Automatic configuration for internal use. ++ ++config AUFS_BR_HFSPLUS ++ bool "Hfsplus as an aufs branch" ++ depends on HFSPLUS_FS ++ default y ++ help ++ If you want to use hfsplus fs as an aufs branch fs, then enable ++ this option. This option introduces a small overhead at ++ copying-up a file on hfsplus. ++ ++config AUFS_BDEV_LOOP ++ bool ++ depends on BLK_DEV_LOOP ++ default y ++ help ++ Automatic configuration for internal use. ++ Convert =[ym] into =y. ++ ++config AUFS_DEBUG ++ bool "Debug aufs" ++ help ++ Enable this to compile aufs internal debug code. ++ It will have a negative impact to the performance. ++ ++config AUFS_MAGIC_SYSRQ ++ bool ++ depends on AUFS_DEBUG && MAGIC_SYSRQ ++ default y ++ help ++ Automatic configuration for internal use. ++ When aufs supports Magic SysRq, enabled automatically. ++endif +diff -Naur linux-5.15/fs/aufs/lcnt.h aufs5-linux-aufs5.15/fs/aufs/lcnt.h +--- linux-5.15/fs/aufs/lcnt.h 1970-01-01 03:00:00.000000000 +0300 ++++ aufs5-linux-aufs5.15/fs/aufs/lcnt.h 2022-03-07 13:48:09.000000000 +0300 +@@ -0,0 +1,173 @@ ++/* SPDX-License-Identifier: GPL-2.0 */ ++/* ++ * Copyright (C) 2018-2021 Junjiro R. Okajima ++ */ ++ ++/* ++ * simple long counter wrapper ++ */ ++ ++#ifndef __AUFS_LCNT_H__ ++#define __AUFS_LCNT_H__ ++ ++#ifdef __KERNEL__ ++ ++#include "debug.h" ++ ++#define AuLCntATOMIC 1 ++#define AuLCntPCPUCNT 2 ++/* ++ * why does percpu_refcount require extra synchronize_rcu()s in ++ * au_br_do_free() ++ */ ++#define AuLCntPCPUREF 3 ++ ++/* #define AuLCntChosen AuLCntATOMIC */ ++#define AuLCntChosen AuLCntPCPUCNT ++/* #define AuLCntChosen AuLCntPCPUREF */ ++ ++#if AuLCntChosen == AuLCntATOMIC ++#include ++ ++typedef atomic_long_t au_lcnt_t; ++ ++static inline int au_lcnt_init(au_lcnt_t *cnt, void *release __maybe_unused) ++{ ++ atomic_long_set(cnt, 0); ++ return 0; ++} ++ ++static inline void au_lcnt_wait_for_fin(au_lcnt_t *cnt __maybe_unused) ++{ ++ /* empty */ ++} ++ ++static inline void au_lcnt_fin(au_lcnt_t *cnt __maybe_unused, ++ int do_sync __maybe_unused) ++{ ++ /* empty */ ++} ++ ++static inline void au_lcnt_inc(au_lcnt_t *cnt) ++{ ++ atomic_long_inc(cnt); ++} ++ ++static inline void au_lcnt_dec(au_lcnt_t *cnt) ++{ ++ atomic_long_dec(cnt); ++} ++ ++static inline long au_lcnt_read(au_lcnt_t *cnt, int do_rev __maybe_unused) ++{ ++ return atomic_long_read(cnt); ++} ++#endif ++ ++#if AuLCntChosen == AuLCntPCPUCNT ++#include ++ ++typedef struct percpu_counter au_lcnt_t; ++ ++static inline int au_lcnt_init(au_lcnt_t *cnt, void *release __maybe_unused) ++{ ++ return percpu_counter_init(cnt, 0, GFP_NOFS); ++} ++ ++static inline void au_lcnt_wait_for_fin(au_lcnt_t *cnt __maybe_unused) ++{ ++ /* empty */ ++} ++ ++static inline void au_lcnt_fin(au_lcnt_t *cnt, int do_sync __maybe_unused) ++{ ++ percpu_counter_destroy(cnt); ++} ++ ++static inline void au_lcnt_inc(au_lcnt_t *cnt) ++{ ++ percpu_counter_inc(cnt); ++} ++ ++static inline void au_lcnt_dec(au_lcnt_t *cnt) ++{ ++ percpu_counter_dec(cnt); ++} ++ ++static inline long au_lcnt_read(au_lcnt_t *cnt, int do_rev __maybe_unused) ++{ ++ s64 n; ++ ++ n = percpu_counter_sum(cnt); ++ BUG_ON(n < 0); ++ if (LONG_MAX != LLONG_MAX ++ && n > LONG_MAX) ++ AuWarn1("%s\n", "wrap-around"); ++ ++ return n; ++} ++#endif ++ ++#if AuLCntChosen == AuLCntPCPUREF ++#include ++ ++typedef struct percpu_ref au_lcnt_t; ++ ++static inline int au_lcnt_init(au_lcnt_t *cnt, percpu_ref_func_t *release) ++{ ++ if (!release) ++ release = percpu_ref_exit; ++ return percpu_ref_init(cnt, release, /*percpu mode*/0, GFP_NOFS); ++} ++ ++static inline void au_lcnt_wait_for_fin(au_lcnt_t *cnt __maybe_unused) ++{ ++ synchronize_rcu(); ++} ++ ++static inline void au_lcnt_fin(au_lcnt_t *cnt, int do_sync) ++{ ++ percpu_ref_kill(cnt); ++ if (do_sync) ++ au_lcnt_wait_for_fin(cnt); ++} ++ ++static inline void au_lcnt_inc(au_lcnt_t *cnt) ++{ ++ percpu_ref_get(cnt); ++} ++ ++static inline void au_lcnt_dec(au_lcnt_t *cnt) ++{ ++ percpu_ref_put(cnt); ++} ++ ++/* ++ * avoid calling this func as possible. ++ */ ++static inline long au_lcnt_read(au_lcnt_t *cnt, int do_rev) ++{ ++ long l; ++ ++ percpu_ref_switch_to_atomic_sync(cnt); ++ l = atomic_long_read(&cnt->count); ++ if (do_rev) ++ percpu_ref_switch_to_percpu(cnt); ++ ++ /* percpu_ref is initialized by 1 instead of 0 */ ++ return l - 1; ++} ++#endif ++ ++#ifdef CONFIG_AUFS_DEBUG ++#define AuLCntZero(val) do { \ ++ long l = val; \ ++ if (l) \ ++ AuDbg("%s = %ld\n", #val, l); \ ++} while (0) ++#else ++#define AuLCntZero(val) do {} while (0) ++#endif ++ ++#endif /* __KERNEL__ */ ++#endif /* __AUFS_LCNT_H__ */ +diff -Naur linux-5.15/fs/aufs/loop.c aufs5-linux-aufs5.15/fs/aufs/loop.c +--- linux-5.15/fs/aufs/loop.c 1970-01-01 03:00:00.000000000 +0300 ++++ aufs5-linux-aufs5.15/fs/aufs/loop.c 2022-03-07 13:48:09.000000000 +0300 +@@ -0,0 +1,135 @@ ++// SPDX-License-Identifier: GPL-2.0 ++/* ++ * Copyright (C) 2005-2021 Junjiro R. Okajima ++ */ ++ ++/* ++ * support for loopback block device as a branch ++ */ ++ ++#include "aufs.h" ++ ++/* added into drivers/block/loop.c */ ++static struct file *(*backing_file_func)(struct super_block *sb); ++ ++/* ++ * test if two lower dentries have overlapping branches. ++ */ ++int au_test_loopback_overlap(struct super_block *sb, struct dentry *h_adding) ++{ ++ struct super_block *h_sb; ++ struct file *backing_file; ++ ++ if (unlikely(!backing_file_func)) { ++ /* don't load "loop" module here */ ++ backing_file_func = symbol_get(loop_backing_file); ++ if (unlikely(!backing_file_func)) ++ /* "loop" module is not loaded */ ++ return 0; ++ } ++ ++ h_sb = h_adding->d_sb; ++ backing_file = backing_file_func(h_sb); ++ if (!backing_file) ++ return 0; ++ ++ h_adding = backing_file->f_path.dentry; ++ /* ++ * h_adding can be local NFS. ++ * in this case aufs cannot detect the loop. ++ */ ++ if (unlikely(h_adding->d_sb == sb)) ++ return 1; ++ return !!au_test_subdir(h_adding, sb->s_root); ++} ++ ++/* true if a kernel thread named 'loop[0-9].*' accesses a file */ ++int au_test_loopback_kthread(void) ++{ ++ int ret; ++ struct task_struct *tsk = current; ++ char c, comm[sizeof(tsk->comm)]; ++ ++ ret = 0; ++ if (tsk->flags & PF_KTHREAD) { ++ get_task_comm(comm, tsk); ++ c = comm[4]; ++ ret = ('0' <= c && c <= '9' ++ && !strncmp(comm, "loop", 4)); ++ } ++ ++ return ret; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++#define au_warn_loopback_step 16 ++static int au_warn_loopback_nelem = au_warn_loopback_step; ++static unsigned long *au_warn_loopback_array; ++ ++void au_warn_loopback(struct super_block *h_sb) ++{ ++ int i, new_nelem; ++ unsigned long *a, magic; ++ static DEFINE_SPINLOCK(spin); ++ ++ magic = h_sb->s_magic; ++ spin_lock(&spin); ++ a = au_warn_loopback_array; ++ for (i = 0; i < au_warn_loopback_nelem && *a; i++) ++ if (a[i] == magic) { ++ spin_unlock(&spin); ++ return; ++ } ++ ++ /* h_sb is new to us, print it */ ++ if (i < au_warn_loopback_nelem) { ++ a[i] = magic; ++ goto pr; ++ } ++ ++ /* expand the array */ ++ new_nelem = au_warn_loopback_nelem + au_warn_loopback_step; ++ a = au_kzrealloc(au_warn_loopback_array, ++ au_warn_loopback_nelem * sizeof(unsigned long), ++ new_nelem * sizeof(unsigned long), GFP_ATOMIC, ++ /*may_shrink*/0); ++ if (a) { ++ au_warn_loopback_nelem = new_nelem; ++ au_warn_loopback_array = a; ++ a[i] = magic; ++ goto pr; ++ } ++ ++ spin_unlock(&spin); ++ AuWarn1("realloc failed, ignored\n"); ++ return; ++ ++pr: ++ spin_unlock(&spin); ++ pr_warn("you may want to try another patch for loopback file " ++ "on %s(0x%lx) branch\n", au_sbtype(h_sb), magic); ++} ++ ++int au_loopback_init(void) ++{ ++ int err; ++ struct super_block *sb __maybe_unused; ++ ++ BUILD_BUG_ON(sizeof(sb->s_magic) != sizeof(*au_warn_loopback_array)); ++ ++ err = 0; ++ au_warn_loopback_array = kcalloc(au_warn_loopback_step, ++ sizeof(unsigned long), GFP_NOFS); ++ if (unlikely(!au_warn_loopback_array)) ++ err = -ENOMEM; ++ ++ return err; ++} ++ ++void au_loopback_fin(void) ++{ ++ if (backing_file_func) ++ symbol_put(loop_backing_file); ++ au_kfree_try_rcu(au_warn_loopback_array); ++} +diff -Naur linux-5.15/fs/aufs/loop.h aufs5-linux-aufs5.15/fs/aufs/loop.h +--- linux-5.15/fs/aufs/loop.h 1970-01-01 03:00:00.000000000 +0300 ++++ aufs5-linux-aufs5.15/fs/aufs/loop.h 2022-03-07 13:48:09.000000000 +0300 +@@ -0,0 +1,42 @@ ++/* SPDX-License-Identifier: GPL-2.0 */ ++/* ++ * Copyright (C) 2005-2021 Junjiro R. Okajima ++ */ ++ ++/* ++ * support for loopback mount as a branch ++ */ ++ ++#ifndef __AUFS_LOOP_H__ ++#define __AUFS_LOOP_H__ ++ ++#ifdef __KERNEL__ ++ ++struct dentry; ++struct super_block; ++ ++#ifdef CONFIG_AUFS_BDEV_LOOP ++/* drivers/block/loop.c */ ++struct file *loop_backing_file(struct super_block *sb); ++ ++/* loop.c */ ++int au_test_loopback_overlap(struct super_block *sb, struct dentry *h_adding); ++int au_test_loopback_kthread(void); ++void au_warn_loopback(struct super_block *h_sb); ++ ++int au_loopback_init(void); ++void au_loopback_fin(void); ++#else ++AuStub(struct file *, loop_backing_file, return NULL, struct super_block *sb) ++ ++AuStubInt0(au_test_loopback_overlap, struct super_block *sb, ++ struct dentry *h_adding) ++AuStubInt0(au_test_loopback_kthread, void) ++AuStubVoid(au_warn_loopback, struct super_block *h_sb) ++ ++AuStubInt0(au_loopback_init, void) ++AuStubVoid(au_loopback_fin, void) ++#endif /* BLK_DEV_LOOP */ ++ ++#endif /* __KERNEL__ */ ++#endif /* __AUFS_LOOP_H__ */ +diff -Naur linux-5.15/fs/aufs/magic.mk aufs5-linux-aufs5.15/fs/aufs/magic.mk +--- linux-5.15/fs/aufs/magic.mk 1970-01-01 03:00:00.000000000 +0300 ++++ aufs5-linux-aufs5.15/fs/aufs/magic.mk 2022-03-07 13:48:09.000000000 +0300 +@@ -0,0 +1,31 @@ ++# SPDX-License-Identifier: GPL-2.0 ++ ++# defined in ${srctree}/fs/fuse/inode.c ++# tristate ++ifdef CONFIG_FUSE_FS ++ccflags-y += -DFUSE_SUPER_MAGIC=0x65735546 ++endif ++ ++# defined in ${srctree}/fs/xfs/xfs_sb.h ++# tristate ++ifdef CONFIG_XFS_FS ++ccflags-y += -DXFS_SB_MAGIC=0x58465342 ++endif ++ ++# defined in ${srctree}/fs/configfs/mount.c ++# tristate ++ifdef CONFIG_CONFIGFS_FS ++ccflags-y += -DCONFIGFS_MAGIC=0x62656570 ++endif ++ ++# defined in ${srctree}/fs/ubifs/ubifs.h ++# tristate ++ifdef CONFIG_UBIFS_FS ++ccflags-y += -DUBIFS_SUPER_MAGIC=0x24051905 ++endif ++ ++# defined in ${srctree}/fs/hfsplus/hfsplus_raw.h ++# tristate ++ifdef CONFIG_HFSPLUS_FS ++ccflags-y += -DHFSPLUS_SUPER_MAGIC=0x482b ++endif +diff -Naur linux-5.15/fs/aufs/Makefile aufs5-linux-aufs5.15/fs/aufs/Makefile +--- linux-5.15/fs/aufs/Makefile 1970-01-01 03:00:00.000000000 +0300 ++++ aufs5-linux-aufs5.15/fs/aufs/Makefile 2022-03-07 13:48:09.000000000 +0300 +@@ -0,0 +1,39 @@ ++# SPDX-License-Identifier: GPL-2.0 ++ ++include ${srctree}/${src}/magic.mk ++-include ${srctree}/${src}/priv_def.mk ++ ++# cf. include/linux/kernel.h ++# enable pr_debug ++ccflags-y += -DDEBUG ++# sparse requires the full pathname ++ccflags-y += -include ${srctree}/include/uapi/linux/aufs_type.h ++ ++obj-$(CONFIG_AUFS_FS) += aufs.o ++aufs-y := module.o sbinfo.o super.o branch.o xino.o sysaufs.o opts.o fsctx.o \ ++ wkq.o vfsub.o dcsub.o \ ++ cpup.o whout.o wbr_policy.o \ ++ dinfo.o dentry.o \ ++ dynop.o \ ++ finfo.o file.o f_op.o \ ++ dir.o vdir.o \ ++ iinfo.o inode.o i_op.o i_op_add.o i_op_del.o i_op_ren.o \ ++ mvdown.o ioctl.o ++ ++# all are boolean ++aufs-$(CONFIG_PROC_FS) += procfs.o plink.o ++aufs-$(CONFIG_SYSFS) += sysfs.o ++aufs-$(CONFIG_DEBUG_FS) += dbgaufs.o ++aufs-$(CONFIG_AUFS_BDEV_LOOP) += loop.o ++aufs-$(CONFIG_AUFS_HNOTIFY) += hnotify.o ++aufs-$(CONFIG_AUFS_HFSNOTIFY) += hfsnotify.o ++aufs-$(CONFIG_AUFS_EXPORT) += export.o ++aufs-$(CONFIG_AUFS_XATTR) += xattr.o ++aufs-$(CONFIG_FS_POSIX_ACL) += posix_acl.o ++aufs-$(CONFIG_AUFS_DIRREN) += dirren.o ++aufs-$(CONFIG_AUFS_FHSM) += fhsm.o ++aufs-$(CONFIG_AUFS_POLL) += poll.o ++aufs-$(CONFIG_AUFS_RDU) += rdu.o ++aufs-$(CONFIG_AUFS_BR_HFSPLUS) += hfsplus.o ++aufs-$(CONFIG_AUFS_DEBUG) += debug.o ++aufs-$(CONFIG_AUFS_MAGIC_SYSRQ) += sysrq.o +diff -Naur linux-5.15/fs/aufs/module.c aufs5-linux-aufs5.15/fs/aufs/module.c +--- linux-5.15/fs/aufs/module.c 1970-01-01 03:00:00.000000000 +0300 ++++ aufs5-linux-aufs5.15/fs/aufs/module.c 2022-03-07 13:48:09.000000000 +0300 +@@ -0,0 +1,259 @@ ++// SPDX-License-Identifier: GPL-2.0 ++/* ++ * Copyright (C) 2005-2021 Junjiro R. Okajima ++ */ ++ ++/* ++ * module global variables and operations ++ */ ++ ++#include ++#include ++#include "aufs.h" ++ ++/* shrinkable realloc */ ++void *au_krealloc(void *p, unsigned int new_sz, gfp_t gfp, int may_shrink) ++{ ++ size_t sz; ++ int diff; ++ ++ sz = 0; ++ diff = -1; ++ if (p) { ++#if 0 /* unused */ ++ if (!new_sz) { ++ au_kfree_rcu(p); ++ p = NULL; ++ goto out; ++ } ++#else ++ AuDebugOn(!new_sz); ++#endif ++ sz = ksize(p); ++ diff = au_kmidx_sub(sz, new_sz); ++ } ++ if (sz && !diff) ++ goto out; ++ ++ if (sz < new_sz) ++ /* expand or SLOB */ ++ p = krealloc(p, new_sz, gfp); ++ else if (new_sz < sz && may_shrink) { ++ /* shrink */ ++ void *q; ++ ++ q = kmalloc(new_sz, gfp); ++ if (q) { ++ if (p) { ++ memcpy(q, p, new_sz); ++ au_kfree_try_rcu(p); ++ } ++ p = q; ++ } else ++ p = NULL; ++ } ++ ++out: ++ return p; ++} ++ ++void *au_kzrealloc(void *p, unsigned int nused, unsigned int new_sz, gfp_t gfp, ++ int may_shrink) ++{ ++ p = au_krealloc(p, new_sz, gfp, may_shrink); ++ if (p && new_sz > nused) ++ memset(p + nused, 0, new_sz - nused); ++ return p; ++} ++ ++/* ---------------------------------------------------------------------- */ ++/* ++ * aufs caches ++ */ ++struct kmem_cache *au_cache[AuCache_Last]; ++ ++static void au_cache_fin(void) ++{ ++ int i; ++ ++ /* ++ * Make sure all delayed rcu free inodes are flushed before we ++ * destroy cache. ++ */ ++ rcu_barrier(); ++ ++ /* excluding AuCache_HNOTIFY */ ++ BUILD_BUG_ON(AuCache_HNOTIFY + 1 != AuCache_Last); ++ for (i = 0; i < AuCache_HNOTIFY; i++) { ++ kmem_cache_destroy(au_cache[i]); ++ au_cache[i] = NULL; ++ } ++} ++ ++static int __init au_cache_init(void) ++{ ++ au_cache[AuCache_DINFO] = AuCacheCtor(au_dinfo, au_di_init_once); ++ if (au_cache[AuCache_DINFO]) ++ /* SLAB_DESTROY_BY_RCU */ ++ au_cache[AuCache_ICNTNR] = AuCacheCtor(au_icntnr, ++ au_icntnr_init_once); ++ if (au_cache[AuCache_ICNTNR]) ++ au_cache[AuCache_FINFO] = AuCacheCtor(au_finfo, ++ au_fi_init_once); ++ if (au_cache[AuCache_FINFO]) ++ au_cache[AuCache_VDIR] = AuCache(au_vdir); ++ if (au_cache[AuCache_VDIR]) ++ au_cache[AuCache_DEHSTR] = AuCache(au_vdir_dehstr); ++ if (au_cache[AuCache_DEHSTR]) ++ return 0; ++ ++ au_cache_fin(); ++ return -ENOMEM; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++int au_dir_roflags; ++ ++#ifdef CONFIG_AUFS_SBILIST ++/* ++ * iterate_supers_type() doesn't protect us from ++ * remounting (branch management) ++ */ ++struct hlist_bl_head au_sbilist; ++#endif ++ ++/* ++ * functions for module interface. ++ */ ++MODULE_LICENSE("GPL"); ++/* MODULE_LICENSE("GPL v2"); */ ++MODULE_AUTHOR("Junjiro R. Okajima "); ++MODULE_DESCRIPTION(AUFS_NAME ++ " -- Advanced multi layered unification filesystem"); ++MODULE_VERSION(AUFS_VERSION); ++ ++/* this module parameter has no meaning when SYSFS is disabled */ ++int sysaufs_brs = 1; ++MODULE_PARM_DESC(brs, "use /fs/aufs/si_*/brN"); ++module_param_named(brs, sysaufs_brs, int, 0444); ++ ++/* this module parameter has no meaning when USER_NS is disabled */ ++bool au_userns; ++MODULE_PARM_DESC(allow_userns, "allow unprivileged to mount under userns"); ++module_param_named(allow_userns, au_userns, bool, 0444); ++ ++/* ---------------------------------------------------------------------- */ ++ ++static char au_esc_chars[0x20 + 3]; /* 0x01-0x20, backslash, del, and NULL */ ++ ++int au_seq_path(struct seq_file *seq, struct path *path) ++{ ++ int err; ++ ++ err = seq_path(seq, path, au_esc_chars); ++ if (err >= 0) ++ err = 0; ++ else ++ err = -ENOMEM; ++ ++ return err; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++static int __init aufs_init(void) ++{ ++ int err, i; ++ char *p; ++ ++ p = au_esc_chars; ++ for (i = 1; i <= ' '; i++) ++ *p++ = i; ++ *p++ = '\\'; ++ *p++ = '\x7f'; ++ *p = 0; ++ ++ au_dir_roflags = au_file_roflags(O_DIRECTORY | O_LARGEFILE); ++ ++ memcpy(aufs_iop_nogetattr, aufs_iop, sizeof(aufs_iop)); ++ for (i = 0; i < AuIop_Last; i++) ++ aufs_iop_nogetattr[i].getattr = NULL; ++ ++ memset(au_cache, 0, sizeof(au_cache)); /* including hnotify */ ++ ++ au_sbilist_init(); ++ sysaufs_brs_init(); ++ au_debug_init(); ++ au_dy_init(); ++ err = sysaufs_init(); ++ if (unlikely(err)) ++ goto out; ++ err = dbgaufs_init(); ++ if (unlikely(err)) ++ goto out_sysaufs; ++ err = au_procfs_init(); ++ if (unlikely(err)) ++ goto out_dbgaufs; ++ err = au_wkq_init(); ++ if (unlikely(err)) ++ goto out_procfs; ++ err = au_loopback_init(); ++ if (unlikely(err)) ++ goto out_wkq; ++ err = au_hnotify_init(); ++ if (unlikely(err)) ++ goto out_loopback; ++ err = au_sysrq_init(); ++ if (unlikely(err)) ++ goto out_hin; ++ err = au_cache_init(); ++ if (unlikely(err)) ++ goto out_sysrq; ++ ++ aufs_fs_type.fs_flags |= au_userns ? FS_USERNS_MOUNT : 0; ++ err = register_filesystem(&aufs_fs_type); ++ if (unlikely(err)) ++ goto out_cache; ++ ++ /* since we define pr_fmt, call printk directly */ ++ printk(KERN_INFO AUFS_NAME " " AUFS_VERSION "\n"); ++ goto out; /* success */ ++ ++out_cache: ++ au_cache_fin(); ++out_sysrq: ++ au_sysrq_fin(); ++out_hin: ++ au_hnotify_fin(); ++out_loopback: ++ au_loopback_fin(); ++out_wkq: ++ au_wkq_fin(); ++out_procfs: ++ au_procfs_fin(); ++out_dbgaufs: ++ dbgaufs_fin(); ++out_sysaufs: ++ sysaufs_fin(); ++ au_dy_fin(); ++out: ++ return err; ++} ++ ++static void __exit aufs_exit(void) ++{ ++ unregister_filesystem(&aufs_fs_type); ++ au_cache_fin(); ++ au_sysrq_fin(); ++ au_hnotify_fin(); ++ au_loopback_fin(); ++ au_wkq_fin(); ++ au_procfs_fin(); ++ dbgaufs_fin(); ++ sysaufs_fin(); ++ au_dy_fin(); ++} ++ ++module_init(aufs_init); ++module_exit(aufs_exit); +diff -Naur linux-5.15/fs/aufs/module.h aufs5-linux-aufs5.15/fs/aufs/module.h +--- linux-5.15/fs/aufs/module.h 1970-01-01 03:00:00.000000000 +0300 ++++ aufs5-linux-aufs5.15/fs/aufs/module.h 2022-03-07 13:48:09.000000000 +0300 +@@ -0,0 +1,153 @@ ++/* SPDX-License-Identifier: GPL-2.0 */ ++/* ++ * Copyright (C) 2005-2021 Junjiro R. Okajima ++ */ ++ ++/* ++ * module initialization and module-global ++ */ ++ ++#ifndef __AUFS_MODULE_H__ ++#define __AUFS_MODULE_H__ ++ ++#ifdef __KERNEL__ ++ ++#include ++#include "debug.h" ++#include "dentry.h" ++#include "dir.h" ++#include "file.h" ++#include "inode.h" ++ ++struct path; ++struct seq_file; ++ ++/* module parameters */ ++extern int sysaufs_brs; ++extern bool au_userns; ++ ++/* ---------------------------------------------------------------------- */ ++ ++extern int au_dir_roflags; ++ ++void *au_krealloc(void *p, unsigned int new_sz, gfp_t gfp, int may_shrink); ++void *au_kzrealloc(void *p, unsigned int nused, unsigned int new_sz, gfp_t gfp, ++ int may_shrink); ++ ++/* ++ * Comparing the size of the object with sizeof(struct rcu_head) ++ * case 1: object is always larger ++ * --> au_kfree_rcu() or au_kfree_do_rcu() ++ * case 2: object is always smaller ++ * --> au_kfree_small() ++ * case 3: object can be any size ++ * --> au_kfree_try_rcu() ++ */ ++ ++static inline void au_kfree_do_rcu(const void *p) ++{ ++ struct { ++ struct rcu_head rcu; ++ } *a = (void *)p; ++ ++ kfree_rcu(a, rcu); ++} ++ ++#define au_kfree_rcu(_p) do { \ ++ typeof(_p) p = (_p); \ ++ BUILD_BUG_ON(sizeof(*p) < sizeof(struct rcu_head)); \ ++ if (p) \ ++ au_kfree_do_rcu(p); \ ++ } while (0) ++ ++#define au_kfree_do_sz_test(sz) (sz >= sizeof(struct rcu_head)) ++#define au_kfree_sz_test(p) (p && au_kfree_do_sz_test(ksize(p))) ++ ++static inline void au_kfree_try_rcu(const void *p) ++{ ++ if (!p) ++ return; ++ if (au_kfree_sz_test(p)) ++ au_kfree_do_rcu(p); ++ else ++ kfree(p); ++} ++ ++static inline void au_kfree_small(const void *p) ++{ ++ if (!p) ++ return; ++ AuDebugOn(au_kfree_sz_test(p)); ++ kfree(p); ++} ++ ++static inline int au_kmidx_sub(size_t sz, size_t new_sz) ++{ ++#ifndef CONFIG_SLOB ++ return __kmalloc_index(sz, false) - __kmalloc_index(new_sz, false); ++#else ++ return -1; /* SLOB is untested */ ++#endif ++} ++ ++int au_seq_path(struct seq_file *seq, struct path *path); ++ ++#ifdef CONFIG_PROC_FS ++/* procfs.c */ ++int __init au_procfs_init(void); ++void au_procfs_fin(void); ++#else ++AuStubInt0(au_procfs_init, void); ++AuStubVoid(au_procfs_fin, void); ++#endif ++ ++/* ---------------------------------------------------------------------- */ ++ ++/* kmem cache */ ++enum { ++ AuCache_DINFO, ++ AuCache_ICNTNR, ++ AuCache_FINFO, ++ AuCache_VDIR, ++ AuCache_DEHSTR, ++ AuCache_HNOTIFY, /* must be last */ ++ AuCache_Last ++}; ++ ++extern struct kmem_cache *au_cache[AuCache_Last]; ++ ++#define AuCacheFlags (SLAB_RECLAIM_ACCOUNT | SLAB_MEM_SPREAD) ++#define AuCache(type) KMEM_CACHE(type, AuCacheFlags) ++#define AuCacheCtor(type, ctor) \ ++ kmem_cache_create(#type, sizeof(struct type), \ ++ __alignof__(struct type), AuCacheFlags, ctor) ++ ++#define AuCacheFuncs(name, index) \ ++ static inline struct au_##name *au_cache_alloc_##name(void) \ ++ { return kmem_cache_alloc(au_cache[AuCache_##index], GFP_NOFS); } \ ++ static inline void au_cache_free_##name##_norcu(struct au_##name *p) \ ++ { kmem_cache_free(au_cache[AuCache_##index], p); } \ ++ \ ++ static inline void au_cache_free_##name##_rcu_cb(struct rcu_head *rcu) \ ++ { void *p = rcu; \ ++ p -= offsetof(struct au_##name, rcu); \ ++ kmem_cache_free(au_cache[AuCache_##index], p); } \ ++ static inline void au_cache_free_##name##_rcu(struct au_##name *p) \ ++ { BUILD_BUG_ON(sizeof(struct au_##name) < sizeof(struct rcu_head)); \ ++ call_rcu(&p->rcu, au_cache_free_##name##_rcu_cb); } \ ++ \ ++ static inline void au_cache_free_##name(struct au_##name *p) \ ++ { /* au_cache_free_##name##_norcu(p); */ \ ++ au_cache_free_##name##_rcu(p); } ++ ++AuCacheFuncs(dinfo, DINFO); ++AuCacheFuncs(icntnr, ICNTNR); ++AuCacheFuncs(finfo, FINFO); ++AuCacheFuncs(vdir, VDIR); ++AuCacheFuncs(vdir_dehstr, DEHSTR); ++#ifdef CONFIG_AUFS_HNOTIFY ++AuCacheFuncs(hnotify, HNOTIFY); ++#endif ++ ++#endif /* __KERNEL__ */ ++#endif /* __AUFS_MODULE_H__ */ +diff -Naur linux-5.15/fs/aufs/mvdown.c aufs5-linux-aufs5.15/fs/aufs/mvdown.c +--- linux-5.15/fs/aufs/mvdown.c 1970-01-01 03:00:00.000000000 +0300 ++++ aufs5-linux-aufs5.15/fs/aufs/mvdown.c 2022-03-07 13:48:09.000000000 +0300 +@@ -0,0 +1,693 @@ ++// SPDX-License-Identifier: GPL-2.0 ++/* ++ * Copyright (C) 2011-2021 Junjiro R. Okajima ++ */ ++ ++/* ++ * move-down, opposite of copy-up ++ */ ++ ++#include "aufs.h" ++ ++struct au_mvd_args { ++ struct { ++ struct super_block *h_sb; ++ struct dentry *h_parent; ++ struct au_hinode *hdir; ++ struct inode *h_dir, *h_inode; ++ struct au_pin pin; ++ } info[AUFS_MVDOWN_NARRAY]; ++ ++ struct aufs_mvdown mvdown; ++ struct dentry *dentry, *parent; ++ struct inode *inode, *dir; ++ struct super_block *sb; ++ aufs_bindex_t bopq, bwh, bfound; ++ unsigned char rename_lock; ++}; ++ ++#define mvd_errno mvdown.au_errno ++#define mvd_bsrc mvdown.stbr[AUFS_MVDOWN_UPPER].bindex ++#define mvd_src_brid mvdown.stbr[AUFS_MVDOWN_UPPER].brid ++#define mvd_bdst mvdown.stbr[AUFS_MVDOWN_LOWER].bindex ++#define mvd_dst_brid mvdown.stbr[AUFS_MVDOWN_LOWER].brid ++ ++#define mvd_h_src_sb info[AUFS_MVDOWN_UPPER].h_sb ++#define mvd_h_src_parent info[AUFS_MVDOWN_UPPER].h_parent ++#define mvd_hdir_src info[AUFS_MVDOWN_UPPER].hdir ++#define mvd_h_src_dir info[AUFS_MVDOWN_UPPER].h_dir ++#define mvd_h_src_inode info[AUFS_MVDOWN_UPPER].h_inode ++#define mvd_pin_src info[AUFS_MVDOWN_UPPER].pin ++ ++#define mvd_h_dst_sb info[AUFS_MVDOWN_LOWER].h_sb ++#define mvd_h_dst_parent info[AUFS_MVDOWN_LOWER].h_parent ++#define mvd_hdir_dst info[AUFS_MVDOWN_LOWER].hdir ++#define mvd_h_dst_dir info[AUFS_MVDOWN_LOWER].h_dir ++#define mvd_h_dst_inode info[AUFS_MVDOWN_LOWER].h_inode ++#define mvd_pin_dst info[AUFS_MVDOWN_LOWER].pin ++ ++#define AU_MVD_PR(flag, ...) do { \ ++ if (flag) \ ++ pr_err(__VA_ARGS__); \ ++ } while (0) ++ ++static int find_lower_writable(struct au_mvd_args *a) ++{ ++ struct super_block *sb; ++ aufs_bindex_t bindex, bbot; ++ struct au_branch *br; ++ ++ sb = a->sb; ++ bindex = a->mvd_bsrc; ++ bbot = au_sbbot(sb); ++ if (a->mvdown.flags & AUFS_MVDOWN_FHSM_LOWER) ++ for (bindex++; bindex <= bbot; bindex++) { ++ br = au_sbr(sb, bindex); ++ if (au_br_fhsm(br->br_perm) ++ && !sb_rdonly(au_br_sb(br))) ++ return bindex; ++ } ++ else if (!(a->mvdown.flags & AUFS_MVDOWN_ROLOWER)) ++ for (bindex++; bindex <= bbot; bindex++) { ++ br = au_sbr(sb, bindex); ++ if (!au_br_rdonly(br)) ++ return bindex; ++ } ++ else ++ for (bindex++; bindex <= bbot; bindex++) { ++ br = au_sbr(sb, bindex); ++ if (!sb_rdonly(au_br_sb(br))) { ++ if (au_br_rdonly(br)) ++ a->mvdown.flags ++ |= AUFS_MVDOWN_ROLOWER_R; ++ return bindex; ++ } ++ } ++ ++ return -1; ++} ++ ++/* make the parent dir on bdst */ ++static int au_do_mkdir(const unsigned char dmsg, struct au_mvd_args *a) ++{ ++ int err; ++ ++ err = 0; ++ a->mvd_hdir_src = au_hi(a->dir, a->mvd_bsrc); ++ a->mvd_hdir_dst = au_hi(a->dir, a->mvd_bdst); ++ a->mvd_h_src_parent = au_h_dptr(a->parent, a->mvd_bsrc); ++ a->mvd_h_dst_parent = NULL; ++ if (au_dbbot(a->parent) >= a->mvd_bdst) ++ a->mvd_h_dst_parent = au_h_dptr(a->parent, a->mvd_bdst); ++ if (!a->mvd_h_dst_parent) { ++ err = au_cpdown_dirs(a->dentry, a->mvd_bdst); ++ if (unlikely(err)) { ++ AU_MVD_PR(dmsg, "cpdown_dirs failed\n"); ++ goto out; ++ } ++ a->mvd_h_dst_parent = au_h_dptr(a->parent, a->mvd_bdst); ++ } ++ ++out: ++ AuTraceErr(err); ++ return err; ++} ++ ++/* lock them all */ ++static int au_do_lock(const unsigned char dmsg, struct au_mvd_args *a) ++{ ++ int err; ++ struct dentry *h_trap; ++ ++ a->mvd_h_src_sb = au_sbr_sb(a->sb, a->mvd_bsrc); ++ a->mvd_h_dst_sb = au_sbr_sb(a->sb, a->mvd_bdst); ++ err = au_pin(&a->mvd_pin_dst, a->dentry, a->mvd_bdst, ++ au_opt_udba(a->sb), ++ AuPin_MNT_WRITE | AuPin_DI_LOCKED); ++ AuTraceErr(err); ++ if (unlikely(err)) { ++ AU_MVD_PR(dmsg, "pin_dst failed\n"); ++ goto out; ++ } ++ ++ if (a->mvd_h_src_sb != a->mvd_h_dst_sb) { ++ a->rename_lock = 0; ++ au_pin_init(&a->mvd_pin_src, a->dentry, a->mvd_bsrc, ++ AuLsc_DI_PARENT, AuLsc_I_PARENT3, ++ au_opt_udba(a->sb), ++ AuPin_MNT_WRITE | AuPin_DI_LOCKED); ++ err = au_do_pin(&a->mvd_pin_src); ++ AuTraceErr(err); ++ a->mvd_h_src_dir = d_inode(a->mvd_h_src_parent); ++ if (unlikely(err)) { ++ AU_MVD_PR(dmsg, "pin_src failed\n"); ++ goto out_dst; ++ } ++ goto out; /* success */ ++ } ++ ++ a->rename_lock = 1; ++ au_pin_hdir_unlock(&a->mvd_pin_dst); ++ err = au_pin(&a->mvd_pin_src, a->dentry, a->mvd_bsrc, ++ au_opt_udba(a->sb), ++ AuPin_MNT_WRITE | AuPin_DI_LOCKED); ++ AuTraceErr(err); ++ a->mvd_h_src_dir = d_inode(a->mvd_h_src_parent); ++ if (unlikely(err)) { ++ AU_MVD_PR(dmsg, "pin_src failed\n"); ++ au_pin_hdir_lock(&a->mvd_pin_dst); ++ goto out_dst; ++ } ++ au_pin_hdir_unlock(&a->mvd_pin_src); ++ h_trap = vfsub_lock_rename(a->mvd_h_src_parent, a->mvd_hdir_src, ++ a->mvd_h_dst_parent, a->mvd_hdir_dst); ++ if (h_trap) { ++ err = (h_trap != a->mvd_h_src_parent); ++ if (err) ++ err = (h_trap != a->mvd_h_dst_parent); ++ } ++ BUG_ON(err); /* it should never happen */ ++ if (unlikely(a->mvd_h_src_dir != au_pinned_h_dir(&a->mvd_pin_src))) { ++ err = -EBUSY; ++ AuTraceErr(err); ++ vfsub_unlock_rename(a->mvd_h_src_parent, a->mvd_hdir_src, ++ a->mvd_h_dst_parent, a->mvd_hdir_dst); ++ au_pin_hdir_lock(&a->mvd_pin_src); ++ au_unpin(&a->mvd_pin_src); ++ au_pin_hdir_lock(&a->mvd_pin_dst); ++ goto out_dst; ++ } ++ goto out; /* success */ ++ ++out_dst: ++ au_unpin(&a->mvd_pin_dst); ++out: ++ AuTraceErr(err); ++ return err; ++} ++ ++static void au_do_unlock(const unsigned char dmsg, struct au_mvd_args *a) ++{ ++ if (!a->rename_lock) ++ au_unpin(&a->mvd_pin_src); ++ else { ++ vfsub_unlock_rename(a->mvd_h_src_parent, a->mvd_hdir_src, ++ a->mvd_h_dst_parent, a->mvd_hdir_dst); ++ au_pin_hdir_lock(&a->mvd_pin_src); ++ au_unpin(&a->mvd_pin_src); ++ au_pin_hdir_lock(&a->mvd_pin_dst); ++ } ++ au_unpin(&a->mvd_pin_dst); ++} ++ ++/* copy-down the file */ ++static int au_do_cpdown(const unsigned char dmsg, struct au_mvd_args *a) ++{ ++ int err; ++ struct au_cp_generic cpg = { ++ .dentry = a->dentry, ++ .bdst = a->mvd_bdst, ++ .bsrc = a->mvd_bsrc, ++ .len = -1, ++ .pin = &a->mvd_pin_dst, ++ .flags = AuCpup_DTIME | AuCpup_HOPEN ++ }; ++ ++ AuDbg("b%d, b%d\n", cpg.bsrc, cpg.bdst); ++ if (a->mvdown.flags & AUFS_MVDOWN_OWLOWER) ++ au_fset_cpup(cpg.flags, OVERWRITE); ++ if (a->mvdown.flags & AUFS_MVDOWN_ROLOWER) ++ au_fset_cpup(cpg.flags, RWDST); ++ err = au_sio_cpdown_simple(&cpg); ++ if (unlikely(err)) ++ AU_MVD_PR(dmsg, "cpdown failed\n"); ++ ++ AuTraceErr(err); ++ return err; ++} ++ ++/* ++ * unlink the whiteout on bdst if exist which may be created by UDBA while we ++ * were sleeping ++ */ ++static int au_do_unlink_wh(const unsigned char dmsg, struct au_mvd_args *a) ++{ ++ int err; ++ struct path h_path; ++ struct au_branch *br; ++ struct inode *delegated; ++ ++ br = au_sbr(a->sb, a->mvd_bdst); ++ h_path.dentry = au_wh_lkup(a->mvd_h_dst_parent, &a->dentry->d_name, br); ++ err = PTR_ERR(h_path.dentry); ++ if (IS_ERR(h_path.dentry)) { ++ AU_MVD_PR(dmsg, "wh_lkup failed\n"); ++ goto out; ++ } ++ ++ err = 0; ++ if (d_is_positive(h_path.dentry)) { ++ h_path.mnt = au_br_mnt(br); ++ delegated = NULL; ++ err = vfsub_unlink(d_inode(a->mvd_h_dst_parent), &h_path, ++ &delegated, /*force*/0); ++ if (unlikely(err == -EWOULDBLOCK)) { ++ pr_warn("cannot retry for NFSv4 delegation" ++ " for an internal unlink\n"); ++ iput(delegated); ++ } ++ if (unlikely(err)) ++ AU_MVD_PR(dmsg, "wh_unlink failed\n"); ++ } ++ dput(h_path.dentry); ++ ++out: ++ AuTraceErr(err); ++ return err; ++} ++ ++/* ++ * unlink the topmost h_dentry ++ */ ++static int au_do_unlink(const unsigned char dmsg, struct au_mvd_args *a) ++{ ++ int err; ++ struct path h_path; ++ struct inode *delegated; ++ ++ h_path.mnt = au_sbr_mnt(a->sb, a->mvd_bsrc); ++ h_path.dentry = au_h_dptr(a->dentry, a->mvd_bsrc); ++ delegated = NULL; ++ err = vfsub_unlink(a->mvd_h_src_dir, &h_path, &delegated, /*force*/0); ++ if (unlikely(err == -EWOULDBLOCK)) { ++ pr_warn("cannot retry for NFSv4 delegation" ++ " for an internal unlink\n"); ++ iput(delegated); ++ } ++ if (unlikely(err)) ++ AU_MVD_PR(dmsg, "unlink failed\n"); ++ ++ AuTraceErr(err); ++ return err; ++} ++ ++/* Since mvdown succeeded, we ignore an error of this function */ ++static void au_do_stfs(const unsigned char dmsg, struct au_mvd_args *a) ++{ ++ int err; ++ struct au_branch *br; ++ ++ a->mvdown.flags |= AUFS_MVDOWN_STFS_FAILED; ++ br = au_sbr(a->sb, a->mvd_bsrc); ++ err = au_br_stfs(br, &a->mvdown.stbr[AUFS_MVDOWN_UPPER].stfs); ++ if (!err) { ++ br = au_sbr(a->sb, a->mvd_bdst); ++ a->mvdown.stbr[AUFS_MVDOWN_LOWER].brid = br->br_id; ++ err = au_br_stfs(br, &a->mvdown.stbr[AUFS_MVDOWN_LOWER].stfs); ++ } ++ if (!err) ++ a->mvdown.flags &= ~AUFS_MVDOWN_STFS_FAILED; ++ else ++ AU_MVD_PR(dmsg, "statfs failed (%d), ignored\n", err); ++} ++ ++/* ++ * copy-down the file and unlink the bsrc file. ++ * - unlink the bdst whout if exist ++ * - copy-down the file (with whtmp name and rename) ++ * - unlink the bsrc file ++ */ ++static int au_do_mvdown(const unsigned char dmsg, struct au_mvd_args *a) ++{ ++ int err; ++ ++ err = au_do_mkdir(dmsg, a); ++ if (!err) ++ err = au_do_lock(dmsg, a); ++ if (unlikely(err)) ++ goto out; ++ ++ /* ++ * do not revert the activities we made on bdst since they should be ++ * harmless in aufs. ++ */ ++ ++ err = au_do_cpdown(dmsg, a); ++ if (!err) ++ err = au_do_unlink_wh(dmsg, a); ++ if (!err && !(a->mvdown.flags & AUFS_MVDOWN_KUPPER)) ++ err = au_do_unlink(dmsg, a); ++ if (unlikely(err)) ++ goto out_unlock; ++ ++ AuDbg("%pd2, 0x%x, %d --> %d\n", ++ a->dentry, a->mvdown.flags, a->mvd_bsrc, a->mvd_bdst); ++ if (find_lower_writable(a) < 0) ++ a->mvdown.flags |= AUFS_MVDOWN_BOTTOM; ++ ++ if (a->mvdown.flags & AUFS_MVDOWN_STFS) ++ au_do_stfs(dmsg, a); ++ ++ /* maintain internal array */ ++ if (!(a->mvdown.flags & AUFS_MVDOWN_KUPPER)) { ++ au_set_h_dptr(a->dentry, a->mvd_bsrc, NULL); ++ au_set_dbtop(a->dentry, a->mvd_bdst); ++ au_set_h_iptr(a->inode, a->mvd_bsrc, NULL, /*flags*/0); ++ au_set_ibtop(a->inode, a->mvd_bdst); ++ } else { ++ /* hide the lower */ ++ au_set_h_dptr(a->dentry, a->mvd_bdst, NULL); ++ au_set_dbbot(a->dentry, a->mvd_bsrc); ++ au_set_h_iptr(a->inode, a->mvd_bdst, NULL, /*flags*/0); ++ au_set_ibbot(a->inode, a->mvd_bsrc); ++ } ++ if (au_dbbot(a->dentry) < a->mvd_bdst) ++ au_set_dbbot(a->dentry, a->mvd_bdst); ++ if (au_ibbot(a->inode) < a->mvd_bdst) ++ au_set_ibbot(a->inode, a->mvd_bdst); ++ ++out_unlock: ++ au_do_unlock(dmsg, a); ++out: ++ AuTraceErr(err); ++ return err; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++/* make sure the file is idle */ ++static int au_mvd_args_busy(const unsigned char dmsg, struct au_mvd_args *a) ++{ ++ int err, plinked; ++ ++ err = 0; ++ plinked = !!au_opt_test(au_mntflags(a->sb), PLINK); ++ if (au_dbtop(a->dentry) == a->mvd_bsrc ++ && au_dcount(a->dentry) == 1 ++ && atomic_read(&a->inode->i_count) == 1 ++ /* && a->mvd_h_src_inode->i_nlink == 1 */ ++ && (!plinked || !au_plink_test(a->inode)) ++ && a->inode->i_nlink == 1) ++ goto out; ++ ++ err = -EBUSY; ++ AU_MVD_PR(dmsg, ++ "b%d, d{b%d, c%d?}, i{c%d?, l%u}, hi{l%u}, p{%d, %d}\n", ++ a->mvd_bsrc, au_dbtop(a->dentry), au_dcount(a->dentry), ++ atomic_read(&a->inode->i_count), a->inode->i_nlink, ++ a->mvd_h_src_inode->i_nlink, ++ plinked, plinked ? au_plink_test(a->inode) : 0); ++ ++out: ++ AuTraceErr(err); ++ return err; ++} ++ ++/* make sure the parent dir is fine */ ++static int au_mvd_args_parent(const unsigned char dmsg, ++ struct au_mvd_args *a) ++{ ++ int err; ++ aufs_bindex_t bindex; ++ ++ err = 0; ++ if (unlikely(au_alive_dir(a->parent))) { ++ err = -ENOENT; ++ AU_MVD_PR(dmsg, "parent dir is dead\n"); ++ goto out; ++ } ++ ++ a->bopq = au_dbdiropq(a->parent); ++ bindex = au_wbr_nonopq(a->dentry, a->mvd_bdst); ++ AuDbg("b%d\n", bindex); ++ if (unlikely((bindex >= 0 && bindex < a->mvd_bdst) ++ || (a->bopq != -1 && a->bopq < a->mvd_bdst))) { ++ err = -EINVAL; ++ a->mvd_errno = EAU_MVDOWN_OPAQUE; ++ AU_MVD_PR(dmsg, "ancestor is opaque b%d, b%d\n", ++ a->bopq, a->mvd_bdst); ++ } ++ ++out: ++ AuTraceErr(err); ++ return err; ++} ++ ++static int au_mvd_args_intermediate(const unsigned char dmsg, ++ struct au_mvd_args *a) ++{ ++ int err; ++ struct au_dinfo *dinfo, *tmp; ++ ++ /* lookup the next lower positive entry */ ++ err = -ENOMEM; ++ tmp = au_di_alloc(a->sb, AuLsc_DI_TMP); ++ if (unlikely(!tmp)) ++ goto out; ++ ++ a->bfound = -1; ++ a->bwh = -1; ++ dinfo = au_di(a->dentry); ++ au_di_cp(tmp, dinfo); ++ au_di_swap(tmp, dinfo); ++ ++ /* returns the number of positive dentries */ ++ err = au_lkup_dentry(a->dentry, a->mvd_bsrc + 1, ++ /* AuLkup_IGNORE_PERM */ 0); ++ if (!err) ++ a->bwh = au_dbwh(a->dentry); ++ else if (err > 0) ++ a->bfound = au_dbtop(a->dentry); ++ ++ au_di_swap(tmp, dinfo); ++ au_rw_write_unlock(&tmp->di_rwsem); ++ au_di_free(tmp); ++ if (unlikely(err < 0)) ++ AU_MVD_PR(dmsg, "failed look-up lower\n"); ++ ++ /* ++ * here, we have these cases. ++ * bfound == -1 ++ * no positive dentry under bsrc. there are more sub-cases. ++ * bwh < 0 ++ * there no whiteout, we can safely move-down. ++ * bwh <= bsrc ++ * impossible ++ * bsrc < bwh && bwh < bdst ++ * there is a whiteout on RO branch. cannot proceed. ++ * bwh == bdst ++ * there is a whiteout on the RW target branch. it should ++ * be removed. ++ * bdst < bwh ++ * there is a whiteout somewhere unrelated branch. ++ * -1 < bfound && bfound <= bsrc ++ * impossible. ++ * bfound < bdst ++ * found, but it is on RO branch between bsrc and bdst. cannot ++ * proceed. ++ * bfound == bdst ++ * found, replace it if AUFS_MVDOWN_FORCE is set. otherwise return ++ * error. ++ * bdst < bfound ++ * found, after we create the file on bdst, it will be hidden. ++ */ ++ ++ AuDebugOn(a->bfound == -1 ++ && a->bwh != -1 ++ && a->bwh <= a->mvd_bsrc); ++ AuDebugOn(-1 < a->bfound ++ && a->bfound <= a->mvd_bsrc); ++ ++ err = -EINVAL; ++ if (a->bfound == -1 ++ && a->mvd_bsrc < a->bwh ++ && a->bwh != -1 ++ && a->bwh < a->mvd_bdst) { ++ a->mvd_errno = EAU_MVDOWN_WHITEOUT; ++ AU_MVD_PR(dmsg, "bsrc %d, bdst %d, bfound %d, bwh %d\n", ++ a->mvd_bsrc, a->mvd_bdst, a->bfound, a->bwh); ++ goto out; ++ } else if (a->bfound != -1 && a->bfound < a->mvd_bdst) { ++ a->mvd_errno = EAU_MVDOWN_UPPER; ++ AU_MVD_PR(dmsg, "bdst %d, bfound %d\n", ++ a->mvd_bdst, a->bfound); ++ goto out; ++ } ++ ++ err = 0; /* success */ ++ ++out: ++ AuTraceErr(err); ++ return err; ++} ++ ++static int au_mvd_args_exist(const unsigned char dmsg, struct au_mvd_args *a) ++{ ++ int err; ++ ++ err = 0; ++ if (!(a->mvdown.flags & AUFS_MVDOWN_OWLOWER) ++ && a->bfound == a->mvd_bdst) ++ err = -EEXIST; ++ AuTraceErr(err); ++ return err; ++} ++ ++static int au_mvd_args(const unsigned char dmsg, struct au_mvd_args *a) ++{ ++ int err; ++ struct au_branch *br; ++ ++ err = -EISDIR; ++ if (unlikely(S_ISDIR(a->inode->i_mode))) ++ goto out; ++ ++ err = -EINVAL; ++ if (!(a->mvdown.flags & AUFS_MVDOWN_BRID_UPPER)) ++ a->mvd_bsrc = au_ibtop(a->inode); ++ else { ++ a->mvd_bsrc = au_br_index(a->sb, a->mvd_src_brid); ++ if (unlikely(a->mvd_bsrc < 0 ++ || (a->mvd_bsrc < au_dbtop(a->dentry) ++ || au_dbbot(a->dentry) < a->mvd_bsrc ++ || !au_h_dptr(a->dentry, a->mvd_bsrc)) ++ || (a->mvd_bsrc < au_ibtop(a->inode) ++ || au_ibbot(a->inode) < a->mvd_bsrc ++ || !au_h_iptr(a->inode, a->mvd_bsrc)))) { ++ a->mvd_errno = EAU_MVDOWN_NOUPPER; ++ AU_MVD_PR(dmsg, "no upper\n"); ++ goto out; ++ } ++ } ++ if (unlikely(a->mvd_bsrc == au_sbbot(a->sb))) { ++ a->mvd_errno = EAU_MVDOWN_BOTTOM; ++ AU_MVD_PR(dmsg, "on the bottom\n"); ++ goto out; ++ } ++ a->mvd_h_src_inode = au_h_iptr(a->inode, a->mvd_bsrc); ++ br = au_sbr(a->sb, a->mvd_bsrc); ++ err = au_br_rdonly(br); ++ if (!(a->mvdown.flags & AUFS_MVDOWN_ROUPPER)) { ++ if (unlikely(err)) ++ goto out; ++ } else if (!(vfsub_native_ro(a->mvd_h_src_inode) ++ || IS_APPEND(a->mvd_h_src_inode))) { ++ if (err) ++ a->mvdown.flags |= AUFS_MVDOWN_ROUPPER_R; ++ /* go on */ ++ } else ++ goto out; ++ ++ err = -EINVAL; ++ if (!(a->mvdown.flags & AUFS_MVDOWN_BRID_LOWER)) { ++ a->mvd_bdst = find_lower_writable(a); ++ if (unlikely(a->mvd_bdst < 0)) { ++ a->mvd_errno = EAU_MVDOWN_BOTTOM; ++ AU_MVD_PR(dmsg, "no writable lower branch\n"); ++ goto out; ++ } ++ } else { ++ a->mvd_bdst = au_br_index(a->sb, a->mvd_dst_brid); ++ if (unlikely(a->mvd_bdst < 0 ++ || au_sbbot(a->sb) < a->mvd_bdst)) { ++ a->mvd_errno = EAU_MVDOWN_NOLOWERBR; ++ AU_MVD_PR(dmsg, "no lower brid\n"); ++ goto out; ++ } ++ } ++ ++ err = au_mvd_args_busy(dmsg, a); ++ if (!err) ++ err = au_mvd_args_parent(dmsg, a); ++ if (!err) ++ err = au_mvd_args_intermediate(dmsg, a); ++ if (!err) ++ err = au_mvd_args_exist(dmsg, a); ++ if (!err) ++ AuDbg("b%d, b%d\n", a->mvd_bsrc, a->mvd_bdst); ++ ++out: ++ AuTraceErr(err); ++ return err; ++} ++ ++int au_mvdown(struct dentry *dentry, struct aufs_mvdown __user *uarg) ++{ ++ int err, e; ++ unsigned char dmsg; ++ struct au_mvd_args *args; ++ struct inode *inode; ++ ++ inode = d_inode(dentry); ++ err = -EPERM; ++ if (unlikely(!capable(CAP_SYS_ADMIN))) ++ goto out; ++ ++ err = -ENOMEM; ++ args = kmalloc(sizeof(*args), GFP_NOFS); ++ if (unlikely(!args)) ++ goto out; ++ ++ err = copy_from_user(&args->mvdown, uarg, sizeof(args->mvdown)); ++ if (!err) ++ /* VERIFY_WRITE */ ++ err = !access_ok(uarg, sizeof(*uarg)); ++ if (unlikely(err)) { ++ err = -EFAULT; ++ AuTraceErr(err); ++ goto out_free; ++ } ++ AuDbg("flags 0x%x\n", args->mvdown.flags); ++ args->mvdown.flags &= ~(AUFS_MVDOWN_ROLOWER_R | AUFS_MVDOWN_ROUPPER_R); ++ args->mvdown.au_errno = 0; ++ args->dentry = dentry; ++ args->inode = inode; ++ args->sb = dentry->d_sb; ++ ++ err = -ENOENT; ++ dmsg = !!(args->mvdown.flags & AUFS_MVDOWN_DMSG); ++ args->parent = dget_parent(dentry); ++ args->dir = d_inode(args->parent); ++ inode_lock_nested(args->dir, I_MUTEX_PARENT); ++ dput(args->parent); ++ if (unlikely(args->parent != dentry->d_parent)) { ++ AU_MVD_PR(dmsg, "parent dir is moved\n"); ++ goto out_dir; ++ } ++ ++ inode_lock_nested(inode, I_MUTEX_CHILD); ++ err = aufs_read_lock(dentry, AuLock_DW | AuLock_FLUSH | AuLock_NOPLMW); ++ if (unlikely(err)) ++ goto out_inode; ++ ++ di_write_lock_parent(args->parent); ++ err = au_mvd_args(dmsg, args); ++ if (unlikely(err)) ++ goto out_parent; ++ ++ err = au_do_mvdown(dmsg, args); ++ if (unlikely(err)) ++ goto out_parent; ++ ++ au_cpup_attr_timesizes(args->dir); ++ au_cpup_attr_timesizes(inode); ++ if (!(args->mvdown.flags & AUFS_MVDOWN_KUPPER)) ++ au_cpup_igen(inode, au_h_iptr(inode, args->mvd_bdst)); ++ /* au_digen_dec(dentry); */ ++ ++out_parent: ++ di_write_unlock(args->parent); ++ aufs_read_unlock(dentry, AuLock_DW); ++out_inode: ++ inode_unlock(inode); ++out_dir: ++ inode_unlock(args->dir); ++out_free: ++ e = copy_to_user(uarg, &args->mvdown, sizeof(args->mvdown)); ++ if (unlikely(e)) ++ err = -EFAULT; ++ au_kfree_rcu(args); ++out: ++ AuTraceErr(err); ++ return err; ++} +diff -Naur linux-5.15/fs/aufs/opts.c aufs5-linux-aufs5.15/fs/aufs/opts.c +--- linux-5.15/fs/aufs/opts.c 1970-01-01 03:00:00.000000000 +0300 ++++ aufs5-linux-aufs5.15/fs/aufs/opts.c 2022-03-07 13:48:09.000000000 +0300 +@@ -0,0 +1,1019 @@ ++// SPDX-License-Identifier: GPL-2.0 ++/* ++ * Copyright (C) 2005-2021 Junjiro R. Okajima ++ */ ++ ++/* ++ * mount options/flags ++ */ ++ ++#include /* a distribution requires */ ++#include ++#include "aufs.h" ++ ++/* ---------------------------------------------------------------------- */ ++ ++static const char *au_parser_pattern(int val, match_table_t tbl) ++{ ++ struct match_token *p; ++ ++ p = tbl; ++ while (p->pattern) { ++ if (p->token == val) ++ return p->pattern; ++ p++; ++ } ++ BUG(); ++ return "??"; ++} ++ ++static const char *au_optstr(int *val, match_table_t tbl) ++{ ++ struct match_token *p; ++ int v; ++ ++ v = *val; ++ if (!v) ++ goto out; ++ p = tbl; ++ while (p->pattern) { ++ if (p->token ++ && (v & p->token) == p->token) { ++ *val &= ~p->token; ++ return p->pattern; ++ } ++ p++; ++ } ++ ++out: ++ return NULL; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++static match_table_t brperm = { ++ {AuBrPerm_RO, AUFS_BRPERM_RO}, ++ {AuBrPerm_RR, AUFS_BRPERM_RR}, ++ {AuBrPerm_RW, AUFS_BRPERM_RW}, ++ {0, NULL} ++}; ++ ++static match_table_t brattr = { ++ /* general */ ++ {AuBrAttr_COO_REG, AUFS_BRATTR_COO_REG}, ++ {AuBrAttr_COO_ALL, AUFS_BRATTR_COO_ALL}, ++ /* 'unpin' attrib is meaningless since linux-3.18-rc1 */ ++ {AuBrAttr_UNPIN, AUFS_BRATTR_UNPIN}, ++#ifdef CONFIG_AUFS_FHSM ++ {AuBrAttr_FHSM, AUFS_BRATTR_FHSM}, ++#endif ++#ifdef CONFIG_AUFS_XATTR ++ {AuBrAttr_ICEX, AUFS_BRATTR_ICEX}, ++ {AuBrAttr_ICEX_SEC, AUFS_BRATTR_ICEX_SEC}, ++ {AuBrAttr_ICEX_SYS, AUFS_BRATTR_ICEX_SYS}, ++ {AuBrAttr_ICEX_TR, AUFS_BRATTR_ICEX_TR}, ++ {AuBrAttr_ICEX_USR, AUFS_BRATTR_ICEX_USR}, ++ {AuBrAttr_ICEX_OTH, AUFS_BRATTR_ICEX_OTH}, ++#endif ++ ++ /* ro/rr branch */ ++ {AuBrRAttr_WH, AUFS_BRRATTR_WH}, ++ ++ /* rw branch */ ++ {AuBrWAttr_MOO, AUFS_BRWATTR_MOO}, ++ {AuBrWAttr_NoLinkWH, AUFS_BRWATTR_NLWH}, ++ ++ {0, NULL} ++}; ++ ++static int br_attr_val(char *str, match_table_t table, substring_t args[]) ++{ ++ int attr, v; ++ char *p; ++ ++ attr = 0; ++ do { ++ p = strchr(str, '+'); ++ if (p) ++ *p = 0; ++ v = match_token(str, table, args); ++ if (v) { ++ if (v & AuBrAttr_CMOO_Mask) ++ attr &= ~AuBrAttr_CMOO_Mask; ++ attr |= v; ++ } else { ++ if (p) ++ *p = '+'; ++ pr_warn("ignored branch attribute %s\n", str); ++ break; ++ } ++ if (p) ++ str = p + 1; ++ } while (p); ++ ++ return attr; ++} ++ ++static int au_do_optstr_br_attr(au_br_perm_str_t *str, int perm) ++{ ++ int sz; ++ const char *p; ++ char *q; ++ ++ q = str->a; ++ *q = 0; ++ p = au_optstr(&perm, brattr); ++ if (p) { ++ sz = strlen(p); ++ memcpy(q, p, sz + 1); ++ q += sz; ++ } else ++ goto out; ++ ++ do { ++ p = au_optstr(&perm, brattr); ++ if (p) { ++ *q++ = '+'; ++ sz = strlen(p); ++ memcpy(q, p, sz + 1); ++ q += sz; ++ } ++ } while (p); ++ ++out: ++ return q - str->a; ++} ++ ++int au_br_perm_val(char *perm) ++{ ++ int val, bad, sz; ++ char *p; ++ substring_t args[MAX_OPT_ARGS]; ++ au_br_perm_str_t attr; ++ ++ p = strchr(perm, '+'); ++ if (p) ++ *p = 0; ++ val = match_token(perm, brperm, args); ++ if (!val) { ++ if (p) ++ *p = '+'; ++ pr_warn("ignored branch permission %s\n", perm); ++ val = AuBrPerm_RO; ++ goto out; ++ } ++ if (!p) ++ goto out; ++ ++ val |= br_attr_val(p + 1, brattr, args); ++ ++ bad = 0; ++ switch (val & AuBrPerm_Mask) { ++ case AuBrPerm_RO: ++ case AuBrPerm_RR: ++ bad = val & AuBrWAttr_Mask; ++ val &= ~AuBrWAttr_Mask; ++ break; ++ case AuBrPerm_RW: ++ bad = val & AuBrRAttr_Mask; ++ val &= ~AuBrRAttr_Mask; ++ break; ++ } ++ ++ /* ++ * 'unpin' attrib becomes meaningless since linux-3.18-rc1, but aufs ++ * does not treat it as an error, just warning. ++ * this is a tiny guard for the user operation. ++ */ ++ if (val & AuBrAttr_UNPIN) { ++ bad |= AuBrAttr_UNPIN; ++ val &= ~AuBrAttr_UNPIN; ++ } ++ ++ if (unlikely(bad)) { ++ sz = au_do_optstr_br_attr(&attr, bad); ++ AuDebugOn(!sz); ++ pr_warn("ignored branch attribute %s\n", attr.a); ++ } ++ ++out: ++ return val; ++} ++ ++void au_optstr_br_perm(au_br_perm_str_t *str, int perm) ++{ ++ au_br_perm_str_t attr; ++ const char *p; ++ char *q; ++ int sz; ++ ++ q = str->a; ++ p = au_optstr(&perm, brperm); ++ AuDebugOn(!p || !*p); ++ sz = strlen(p); ++ memcpy(q, p, sz + 1); ++ q += sz; ++ ++ sz = au_do_optstr_br_attr(&attr, perm); ++ if (sz) { ++ *q++ = '+'; ++ memcpy(q, attr.a, sz + 1); ++ } ++ ++ AuDebugOn(strlen(str->a) >= sizeof(str->a)); ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++static match_table_t udbalevel = { ++ {AuOpt_UDBA_REVAL, "reval"}, ++ {AuOpt_UDBA_NONE, "none"}, ++#ifdef CONFIG_AUFS_HNOTIFY ++ {AuOpt_UDBA_HNOTIFY, "notify"}, /* abstraction */ ++#ifdef CONFIG_AUFS_HFSNOTIFY ++ {AuOpt_UDBA_HNOTIFY, "fsnotify"}, ++#endif ++#endif ++ {-1, NULL} ++}; ++ ++int au_udba_val(char *str) ++{ ++ substring_t args[MAX_OPT_ARGS]; ++ ++ return match_token(str, udbalevel, args); ++} ++ ++const char *au_optstr_udba(int udba) ++{ ++ return au_parser_pattern(udba, udbalevel); ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++static match_table_t au_wbr_create_policy = { ++ {AuWbrCreate_TDP, "tdp"}, ++ {AuWbrCreate_TDP, "top-down-parent"}, ++ {AuWbrCreate_RR, "rr"}, ++ {AuWbrCreate_RR, "round-robin"}, ++ {AuWbrCreate_MFS, "mfs"}, ++ {AuWbrCreate_MFS, "most-free-space"}, ++ {AuWbrCreate_MFSV, "mfs:%d"}, ++ {AuWbrCreate_MFSV, "most-free-space:%d"}, ++ ++ /* top-down regardless the parent, and then mfs */ ++ {AuWbrCreate_TDMFS, "tdmfs:%d"}, ++ {AuWbrCreate_TDMFSV, "tdmfs:%d:%d"}, ++ ++ {AuWbrCreate_MFSRR, "mfsrr:%d"}, ++ {AuWbrCreate_MFSRRV, "mfsrr:%d:%d"}, ++ {AuWbrCreate_PMFS, "pmfs"}, ++ {AuWbrCreate_PMFSV, "pmfs:%d"}, ++ {AuWbrCreate_PMFSRR, "pmfsrr:%d"}, ++ {AuWbrCreate_PMFSRRV, "pmfsrr:%d:%d"}, ++ ++ {-1, NULL} ++}; ++ ++static int au_wbr_mfs_wmark(substring_t *arg, char *str, ++ struct au_opt_wbr_create *create) ++{ ++ int err; ++ unsigned long long ull; ++ ++ err = 0; ++ if (!match_u64(arg, &ull)) ++ create->mfsrr_watermark = ull; ++ else { ++ pr_err("bad integer in %s\n", str); ++ err = -EINVAL; ++ } ++ ++ return err; ++} ++ ++static int au_wbr_mfs_sec(substring_t *arg, char *str, ++ struct au_opt_wbr_create *create) ++{ ++ int n, err; ++ ++ err = 0; ++ if (!match_int(arg, &n) && 0 <= n && n <= AUFS_MFS_MAX_SEC) ++ create->mfs_second = n; ++ else { ++ pr_err("bad integer in %s\n", str); ++ err = -EINVAL; ++ } ++ ++ return err; ++} ++ ++int au_wbr_create_val(char *str, struct au_opt_wbr_create *create) ++{ ++ int err, e; ++ substring_t args[MAX_OPT_ARGS]; ++ ++ err = match_token(str, au_wbr_create_policy, args); ++ create->wbr_create = err; ++ switch (err) { ++ case AuWbrCreate_MFSRRV: ++ case AuWbrCreate_TDMFSV: ++ case AuWbrCreate_PMFSRRV: ++ e = au_wbr_mfs_wmark(&args[0], str, create); ++ if (!e) ++ e = au_wbr_mfs_sec(&args[1], str, create); ++ if (unlikely(e)) ++ err = e; ++ break; ++ case AuWbrCreate_MFSRR: ++ case AuWbrCreate_TDMFS: ++ case AuWbrCreate_PMFSRR: ++ e = au_wbr_mfs_wmark(&args[0], str, create); ++ if (unlikely(e)) { ++ err = e; ++ break; ++ } ++ fallthrough; ++ case AuWbrCreate_MFS: ++ case AuWbrCreate_PMFS: ++ create->mfs_second = AUFS_MFS_DEF_SEC; ++ break; ++ case AuWbrCreate_MFSV: ++ case AuWbrCreate_PMFSV: ++ e = au_wbr_mfs_sec(&args[0], str, create); ++ if (unlikely(e)) ++ err = e; ++ break; ++ } ++ ++ return err; ++} ++ ++const char *au_optstr_wbr_create(int wbr_create) ++{ ++ return au_parser_pattern(wbr_create, au_wbr_create_policy); ++} ++ ++static match_table_t au_wbr_copyup_policy = { ++ {AuWbrCopyup_TDP, "tdp"}, ++ {AuWbrCopyup_TDP, "top-down-parent"}, ++ {AuWbrCopyup_BUP, "bup"}, ++ {AuWbrCopyup_BUP, "bottom-up-parent"}, ++ {AuWbrCopyup_BU, "bu"}, ++ {AuWbrCopyup_BU, "bottom-up"}, ++ {-1, NULL} ++}; ++ ++int au_wbr_copyup_val(char *str) ++{ ++ substring_t args[MAX_OPT_ARGS]; ++ ++ return match_token(str, au_wbr_copyup_policy, args); ++} ++ ++const char *au_optstr_wbr_copyup(int wbr_copyup) ++{ ++ return au_parser_pattern(wbr_copyup, au_wbr_copyup_policy); ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++int au_opt_add(struct au_opt *opt, char *opt_str, unsigned long sb_flags, ++ aufs_bindex_t bindex) ++{ ++ int err; ++ struct au_opt_add *add = &opt->add; ++ char *p; ++ ++ add->bindex = bindex; ++ add->perm = AuBrPerm_RO; ++ add->pathname = opt_str; ++ p = strchr(opt_str, '='); ++ if (p) { ++ *p++ = 0; ++ if (*p) ++ add->perm = au_br_perm_val(p); ++ } ++ ++ err = vfsub_kern_path(add->pathname, AuOpt_LkupDirFlags, &add->path); ++ if (!err) { ++ if (!p) { ++ add->perm = AuBrPerm_RO; ++ if (au_test_fs_rr(add->path.dentry->d_sb)) ++ add->perm = AuBrPerm_RR; ++ else if (!bindex && !(sb_flags & SB_RDONLY)) ++ add->perm = AuBrPerm_RW; ++ } ++ opt->type = Opt_add; ++ goto out; ++ } ++ pr_err("lookup failed %s (%d)\n", add->pathname, err); ++ err = -EINVAL; ++ ++out: ++ return err; ++} ++ ++static int au_opt_wbr_create(struct super_block *sb, ++ struct au_opt_wbr_create *create) ++{ ++ int err; ++ struct au_sbinfo *sbinfo; ++ ++ SiMustWriteLock(sb); ++ ++ err = 1; /* handled */ ++ sbinfo = au_sbi(sb); ++ if (sbinfo->si_wbr_create_ops->fin) { ++ err = sbinfo->si_wbr_create_ops->fin(sb); ++ if (!err) ++ err = 1; ++ } ++ ++ sbinfo->si_wbr_create = create->wbr_create; ++ sbinfo->si_wbr_create_ops = au_wbr_create_ops + create->wbr_create; ++ switch (create->wbr_create) { ++ case AuWbrCreate_MFSRRV: ++ case AuWbrCreate_MFSRR: ++ case AuWbrCreate_TDMFS: ++ case AuWbrCreate_TDMFSV: ++ case AuWbrCreate_PMFSRR: ++ case AuWbrCreate_PMFSRRV: ++ sbinfo->si_wbr_mfs.mfsrr_watermark = create->mfsrr_watermark; ++ fallthrough; ++ case AuWbrCreate_MFS: ++ case AuWbrCreate_MFSV: ++ case AuWbrCreate_PMFS: ++ case AuWbrCreate_PMFSV: ++ sbinfo->si_wbr_mfs.mfs_expire ++ = msecs_to_jiffies(create->mfs_second * MSEC_PER_SEC); ++ break; ++ } ++ ++ if (sbinfo->si_wbr_create_ops->init) ++ sbinfo->si_wbr_create_ops->init(sb); /* ignore */ ++ ++ return err; ++} ++ ++/* ++ * returns, ++ * plus: processed without an error ++ * zero: unprocessed ++ */ ++static int au_opt_simple(struct super_block *sb, struct au_opt *opt, ++ struct au_opts *opts) ++{ ++ int err; ++ struct au_sbinfo *sbinfo; ++ ++ SiMustWriteLock(sb); ++ ++ err = 1; /* handled */ ++ sbinfo = au_sbi(sb); ++ switch (opt->type) { ++ case Opt_udba: ++ sbinfo->si_mntflags &= ~AuOptMask_UDBA; ++ sbinfo->si_mntflags |= opt->udba; ++ opts->given_udba |= opt->udba; ++ break; ++ ++ case Opt_plink: ++ if (opt->tf) ++ au_opt_set(sbinfo->si_mntflags, PLINK); ++ else { ++ if (au_opt_test(sbinfo->si_mntflags, PLINK)) ++ au_plink_put(sb, /*verbose*/1); ++ au_opt_clr(sbinfo->si_mntflags, PLINK); ++ } ++ break; ++ case Opt_list_plink: ++ if (au_opt_test(sbinfo->si_mntflags, PLINK)) ++ au_plink_list(sb); ++ break; ++ ++ case Opt_dio: ++ if (opt->tf) { ++ au_opt_set(sbinfo->si_mntflags, DIO); ++ au_fset_opts(opts->flags, REFRESH_DYAOP); ++ } else { ++ au_opt_clr(sbinfo->si_mntflags, DIO); ++ au_fset_opts(opts->flags, REFRESH_DYAOP); ++ } ++ break; ++ ++ case Opt_fhsm_sec: ++ au_fhsm_set(sbinfo, opt->fhsm_second); ++ break; ++ ++ case Opt_diropq_a: ++ au_opt_set(sbinfo->si_mntflags, ALWAYS_DIROPQ); ++ break; ++ case Opt_diropq_w: ++ au_opt_clr(sbinfo->si_mntflags, ALWAYS_DIROPQ); ++ break; ++ ++ case Opt_warn_perm: ++ if (opt->tf) ++ au_opt_set(sbinfo->si_mntflags, WARN_PERM); ++ else ++ au_opt_clr(sbinfo->si_mntflags, WARN_PERM); ++ break; ++ ++ case Opt_verbose: ++ if (opt->tf) ++ au_opt_set(sbinfo->si_mntflags, VERBOSE); ++ else ++ au_opt_clr(sbinfo->si_mntflags, VERBOSE); ++ break; ++ ++ case Opt_sum: ++ if (opt->tf) ++ au_opt_set(sbinfo->si_mntflags, SUM); ++ else { ++ au_opt_clr(sbinfo->si_mntflags, SUM); ++ au_opt_clr(sbinfo->si_mntflags, SUM_W); ++ } ++ break; ++ case Opt_wsum: ++ au_opt_clr(sbinfo->si_mntflags, SUM); ++ au_opt_set(sbinfo->si_mntflags, SUM_W); ++ break; ++ ++ case Opt_wbr_create: ++ err = au_opt_wbr_create(sb, &opt->wbr_create); ++ break; ++ case Opt_wbr_copyup: ++ sbinfo->si_wbr_copyup = opt->wbr_copyup; ++ sbinfo->si_wbr_copyup_ops = au_wbr_copyup_ops + opt->wbr_copyup; ++ break; ++ ++ case Opt_dirwh: ++ sbinfo->si_dirwh = opt->dirwh; ++ break; ++ ++ case Opt_rdcache: ++ sbinfo->si_rdcache ++ = msecs_to_jiffies(opt->rdcache * MSEC_PER_SEC); ++ break; ++ case Opt_rdblk: ++ sbinfo->si_rdblk = opt->rdblk; ++ break; ++ case Opt_rdhash: ++ sbinfo->si_rdhash = opt->rdhash; ++ break; ++ ++ case Opt_shwh: ++ if (opt->tf) ++ au_opt_set(sbinfo->si_mntflags, SHWH); ++ else ++ au_opt_clr(sbinfo->si_mntflags, SHWH); ++ break; ++ ++ case Opt_dirperm1: ++ if (opt->tf) ++ au_opt_set(sbinfo->si_mntflags, DIRPERM1); ++ else ++ au_opt_clr(sbinfo->si_mntflags, DIRPERM1); ++ break; ++ ++ case Opt_trunc_xino: ++ if (opt->tf) ++ au_opt_set(sbinfo->si_mntflags, TRUNC_XINO); ++ else ++ au_opt_clr(sbinfo->si_mntflags, TRUNC_XINO); ++ break; ++ ++ case Opt_trunc_xino_path: ++ case Opt_itrunc_xino: ++ err = au_xino_trunc(sb, opt->xino_itrunc.bindex, ++ /*idx_begin*/0); ++ if (!err) ++ err = 1; ++ break; ++ ++ case Opt_trunc_xib: ++ if (opt->tf) ++ au_fset_opts(opts->flags, TRUNC_XIB); ++ else ++ au_fclr_opts(opts->flags, TRUNC_XIB); ++ break; ++ ++ case Opt_dirren: ++ err = 1; ++ if (opt->tf) { ++ if (!au_opt_test(sbinfo->si_mntflags, DIRREN)) { ++ err = au_dr_opt_set(sb); ++ if (!err) ++ err = 1; ++ } ++ if (err == 1) ++ au_opt_set(sbinfo->si_mntflags, DIRREN); ++ } else { ++ if (au_opt_test(sbinfo->si_mntflags, DIRREN)) { ++ err = au_dr_opt_clr(sb, au_ftest_opts(opts->flags, ++ DR_FLUSHED)); ++ if (!err) ++ err = 1; ++ } ++ if (err == 1) ++ au_opt_clr(sbinfo->si_mntflags, DIRREN); ++ } ++ break; ++ ++ case Opt_acl: ++ if (opt->tf) ++ sb->s_flags |= SB_POSIXACL; ++ else ++ sb->s_flags &= ~SB_POSIXACL; ++ break; ++ ++ default: ++ err = 0; ++ break; ++ } ++ ++ return err; ++} ++ ++/* ++ * returns tri-state. ++ * plus: processed without an error ++ * zero: unprocessed ++ * minus: error ++ */ ++static int au_opt_br(struct super_block *sb, struct au_opt *opt, ++ struct au_opts *opts) ++{ ++ int err, do_refresh; ++ ++ err = 0; ++ switch (opt->type) { ++ case Opt_append: ++ opt->add.bindex = au_sbbot(sb) + 1; ++ if (opt->add.bindex < 0) ++ opt->add.bindex = 0; ++ goto add; ++ /* Always goto add, not fallthrough */ ++ case Opt_prepend: ++ opt->add.bindex = 0; ++ fallthrough; ++ add: /* indented label */ ++ case Opt_add: ++ err = au_br_add(sb, &opt->add, ++ au_ftest_opts(opts->flags, REMOUNT)); ++ if (!err) { ++ err = 1; ++ au_fset_opts(opts->flags, REFRESH); ++ } ++ break; ++ ++ case Opt_del: ++ case Opt_idel: ++ err = au_br_del(sb, &opt->del, ++ au_ftest_opts(opts->flags, REMOUNT)); ++ if (!err) { ++ err = 1; ++ au_fset_opts(opts->flags, TRUNC_XIB); ++ au_fset_opts(opts->flags, REFRESH); ++ } ++ break; ++ ++ case Opt_mod: ++ case Opt_imod: ++ err = au_br_mod(sb, &opt->mod, ++ au_ftest_opts(opts->flags, REMOUNT), ++ &do_refresh); ++ if (!err) { ++ err = 1; ++ if (do_refresh) ++ au_fset_opts(opts->flags, REFRESH); ++ } ++ break; ++ } ++ return err; ++} ++ ++static int au_opt_xino(struct super_block *sb, struct au_opt *opt, ++ struct au_opt_xino **opt_xino, ++ struct au_opts *opts) ++{ ++ int err; ++ ++ err = 0; ++ switch (opt->type) { ++ case Opt_xino: ++ err = au_xino_set(sb, &opt->xino, ++ !!au_ftest_opts(opts->flags, REMOUNT)); ++ if (!err) ++ *opt_xino = &opt->xino; ++ break; ++ case Opt_noxino: ++ au_xino_clr(sb); ++ *opt_xino = (void *)-1; ++ break; ++ } ++ ++ return err; ++} ++ ++int au_opts_verify(struct super_block *sb, unsigned long sb_flags, ++ unsigned int pending) ++{ ++ int err, fhsm; ++ aufs_bindex_t bindex, bbot; ++ unsigned char do_plink, skip, do_free, can_no_dreval; ++ struct au_branch *br; ++ struct au_wbr *wbr; ++ struct dentry *root, *dentry; ++ struct inode *dir, *h_dir; ++ struct au_sbinfo *sbinfo; ++ struct au_hinode *hdir; ++ ++ SiMustAnyLock(sb); ++ ++ sbinfo = au_sbi(sb); ++ AuDebugOn(!(sbinfo->si_mntflags & AuOptMask_UDBA)); ++ ++ if (!(sb_flags & SB_RDONLY)) { ++ if (unlikely(!au_br_writable(au_sbr_perm(sb, 0)))) ++ pr_warn("first branch should be rw\n"); ++ if (unlikely(au_opt_test(sbinfo->si_mntflags, SHWH))) ++ pr_warn_once("shwh should be used with ro\n"); ++ } ++ ++ if (au_opt_test((sbinfo->si_mntflags | pending), UDBA_HNOTIFY) ++ && !au_opt_test(sbinfo->si_mntflags, XINO)) ++ pr_warn_once("udba=*notify requires xino\n"); ++ ++ if (au_opt_test(sbinfo->si_mntflags, DIRPERM1)) ++ pr_warn_once("dirperm1 breaks the protection" ++ " by the permission bits on the lower branch\n"); ++ ++ err = 0; ++ fhsm = 0; ++ root = sb->s_root; ++ dir = d_inode(root); ++ do_plink = !!au_opt_test(sbinfo->si_mntflags, PLINK); ++ can_no_dreval = !!au_opt_test((sbinfo->si_mntflags | pending), ++ UDBA_NONE); ++ bbot = au_sbbot(sb); ++ for (bindex = 0; !err && bindex <= bbot; bindex++) { ++ skip = 0; ++ h_dir = au_h_iptr(dir, bindex); ++ br = au_sbr(sb, bindex); ++ ++ if ((br->br_perm & AuBrAttr_ICEX) ++ && !h_dir->i_op->listxattr) ++ br->br_perm &= ~AuBrAttr_ICEX; ++#if 0 /* untested */ ++ if ((br->br_perm & AuBrAttr_ICEX_SEC) ++ && (au_br_sb(br)->s_flags & SB_NOSEC)) ++ br->br_perm &= ~AuBrAttr_ICEX_SEC; ++#endif ++ ++ do_free = 0; ++ wbr = br->br_wbr; ++ if (wbr) ++ wbr_wh_read_lock(wbr); ++ ++ if (!au_br_writable(br->br_perm)) { ++ do_free = !!wbr; ++ skip = (!wbr ++ || (!wbr->wbr_whbase ++ && !wbr->wbr_plink ++ && !wbr->wbr_orph)); ++ } else if (!au_br_wh_linkable(br->br_perm)) { ++ /* skip = (!br->br_whbase && !br->br_orph); */ ++ skip = (!wbr || !wbr->wbr_whbase); ++ if (skip && wbr) { ++ if (do_plink) ++ skip = !!wbr->wbr_plink; ++ else ++ skip = !wbr->wbr_plink; ++ } ++ } else { ++ /* skip = (br->br_whbase && br->br_ohph); */ ++ skip = (wbr && wbr->wbr_whbase); ++ if (skip) { ++ if (do_plink) ++ skip = !!wbr->wbr_plink; ++ else ++ skip = !wbr->wbr_plink; ++ } ++ } ++ if (wbr) ++ wbr_wh_read_unlock(wbr); ++ ++ if (can_no_dreval) { ++ dentry = br->br_path.dentry; ++ spin_lock(&dentry->d_lock); ++ if (dentry->d_flags & ++ (DCACHE_OP_REVALIDATE | DCACHE_OP_WEAK_REVALIDATE)) ++ can_no_dreval = 0; ++ spin_unlock(&dentry->d_lock); ++ } ++ ++ if (au_br_fhsm(br->br_perm)) { ++ fhsm++; ++ AuDebugOn(!br->br_fhsm); ++ } ++ ++ if (skip) ++ continue; ++ ++ hdir = au_hi(dir, bindex); ++ au_hn_inode_lock_nested(hdir, AuLsc_I_PARENT); ++ if (wbr) ++ wbr_wh_write_lock(wbr); ++ err = au_wh_init(br, sb); ++ if (wbr) ++ wbr_wh_write_unlock(wbr); ++ au_hn_inode_unlock(hdir); ++ ++ if (!err && do_free) { ++ au_kfree_rcu(wbr); ++ br->br_wbr = NULL; ++ } ++ } ++ ++ if (can_no_dreval) ++ au_fset_si(sbinfo, NO_DREVAL); ++ else ++ au_fclr_si(sbinfo, NO_DREVAL); ++ ++ if (fhsm >= 2) { ++ au_fset_si(sbinfo, FHSM); ++ for (bindex = bbot; bindex >= 0; bindex--) { ++ br = au_sbr(sb, bindex); ++ if (au_br_fhsm(br->br_perm)) { ++ au_fhsm_set_bottom(sb, bindex); ++ break; ++ } ++ } ++ } else { ++ au_fclr_si(sbinfo, FHSM); ++ au_fhsm_set_bottom(sb, -1); ++ } ++ ++ return err; ++} ++ ++int au_opts_mount(struct super_block *sb, struct au_opts *opts) ++{ ++ int err; ++ unsigned int tmp; ++ aufs_bindex_t bindex, bbot; ++ struct au_opt *opt; ++ struct au_opt_xino *opt_xino, xino; ++ struct au_sbinfo *sbinfo; ++ struct au_branch *br; ++ struct inode *dir; ++ ++ SiMustWriteLock(sb); ++ ++ err = 0; ++ opt_xino = NULL; ++ opt = opts->opt; ++ while (err >= 0 && opt->type != Opt_tail) ++ err = au_opt_simple(sb, opt++, opts); ++ if (err > 0) ++ err = 0; ++ else if (unlikely(err < 0)) ++ goto out; ++ ++ /* disable xino and udba temporary */ ++ sbinfo = au_sbi(sb); ++ tmp = sbinfo->si_mntflags; ++ au_opt_clr(sbinfo->si_mntflags, XINO); ++ au_opt_set_udba(sbinfo->si_mntflags, UDBA_REVAL); ++ ++ opt = opts->opt; ++ while (err >= 0 && opt->type != Opt_tail) ++ err = au_opt_br(sb, opt++, opts); ++ if (err > 0) ++ err = 0; ++ else if (unlikely(err < 0)) ++ goto out; ++ ++ bbot = au_sbbot(sb); ++ if (unlikely(bbot < 0)) { ++ err = -EINVAL; ++ pr_err("no branches\n"); ++ goto out; ++ } ++ ++ if (au_opt_test(tmp, XINO)) ++ au_opt_set(sbinfo->si_mntflags, XINO); ++ opt = opts->opt; ++ while (!err && opt->type != Opt_tail) ++ err = au_opt_xino(sb, opt++, &opt_xino, opts); ++ if (unlikely(err)) ++ goto out; ++ ++ err = au_opts_verify(sb, sb->s_flags, tmp); ++ if (unlikely(err)) ++ goto out; ++ ++ /* restore xino */ ++ if (au_opt_test(tmp, XINO) && !opt_xino) { ++ xino.file = au_xino_def(sb); ++ err = PTR_ERR(xino.file); ++ if (IS_ERR(xino.file)) ++ goto out; ++ ++ err = au_xino_set(sb, &xino, /*remount*/0); ++ fput(xino.file); ++ if (unlikely(err)) ++ goto out; ++ } ++ ++ /* restore udba */ ++ tmp &= AuOptMask_UDBA; ++ sbinfo->si_mntflags &= ~AuOptMask_UDBA; ++ sbinfo->si_mntflags |= tmp; ++ bbot = au_sbbot(sb); ++ for (bindex = 0; bindex <= bbot; bindex++) { ++ br = au_sbr(sb, bindex); ++ err = au_hnotify_reset_br(tmp, br, br->br_perm); ++ if (unlikely(err)) ++ AuIOErr("hnotify failed on br %d, %d, ignored\n", ++ bindex, err); ++ /* go on even if err */ ++ } ++ if (au_opt_test(tmp, UDBA_HNOTIFY)) { ++ dir = d_inode(sb->s_root); ++ au_hn_reset(dir, au_hi_flags(dir, /*isdir*/1) & ~AuHi_XINO); ++ } ++ ++out: ++ return err; ++} ++ ++int au_opts_remount(struct super_block *sb, struct au_opts *opts) ++{ ++ int err, rerr; ++ unsigned char no_dreval; ++ struct inode *dir; ++ struct au_opt_xino *opt_xino; ++ struct au_opt *opt; ++ struct au_sbinfo *sbinfo; ++ ++ SiMustWriteLock(sb); ++ ++ err = au_dr_opt_flush(sb); ++ if (unlikely(err)) ++ goto out; ++ au_fset_opts(opts->flags, DR_FLUSHED); ++ ++ dir = d_inode(sb->s_root); ++ sbinfo = au_sbi(sb); ++ opt_xino = NULL; ++ opt = opts->opt; ++ while (err >= 0 && opt->type != Opt_tail) { ++ err = au_opt_simple(sb, opt, opts); ++ if (!err) ++ err = au_opt_br(sb, opt, opts); ++ if (!err) ++ err = au_opt_xino(sb, opt, &opt_xino, opts); ++ opt++; ++ } ++ if (err > 0) ++ err = 0; ++ AuTraceErr(err); ++ /* go on even err */ ++ ++ no_dreval = !!au_ftest_si(sbinfo, NO_DREVAL); ++ rerr = au_opts_verify(sb, opts->sb_flags, /*pending*/0); ++ if (unlikely(rerr && !err)) ++ err = rerr; ++ ++ if (no_dreval != !!au_ftest_si(sbinfo, NO_DREVAL)) ++ au_fset_opts(opts->flags, REFRESH_IDOP); ++ ++ if (au_ftest_opts(opts->flags, TRUNC_XIB)) { ++ rerr = au_xib_trunc(sb); ++ if (unlikely(rerr && !err)) ++ err = rerr; ++ } ++ ++ /* will be handled by the caller */ ++ if (!au_ftest_opts(opts->flags, REFRESH) ++ && (opts->given_udba ++ || au_opt_test(sbinfo->si_mntflags, XINO) ++ || au_ftest_opts(opts->flags, REFRESH_IDOP) ++ )) ++ au_fset_opts(opts->flags, REFRESH); ++ ++ AuDbg("status 0x%x\n", opts->flags); ++ ++out: ++ return err; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++unsigned int au_opt_udba(struct super_block *sb) ++{ ++ return au_mntflags(sb) & AuOptMask_UDBA; ++} +diff -Naur linux-5.15/fs/aufs/opts.h aufs5-linux-aufs5.15/fs/aufs/opts.h +--- linux-5.15/fs/aufs/opts.h 1970-01-01 03:00:00.000000000 +0300 ++++ aufs5-linux-aufs5.15/fs/aufs/opts.h 2022-03-07 13:48:09.000000000 +0300 +@@ -0,0 +1,250 @@ ++/* SPDX-License-Identifier: GPL-2.0 */ ++/* ++ * Copyright (C) 2005-2021 Junjiro R. Okajima ++ */ ++ ++/* ++ * mount options/flags ++ */ ++ ++#ifndef __AUFS_OPTS_H__ ++#define __AUFS_OPTS_H__ ++ ++#ifdef __KERNEL__ ++ ++#include ++#include ++#include ++ ++enum { ++ Opt_br, ++ Opt_add, Opt_del, Opt_mod, Opt_append, Opt_prepend, ++ Opt_idel, Opt_imod, ++ Opt_dirwh, Opt_rdcache, Opt_rdblk, Opt_rdhash, ++ Opt_xino, Opt_noxino, ++ Opt_trunc_xino, Opt_trunc_xino_v, ++ Opt_trunc_xino_path, Opt_itrunc_xino, ++ Opt_trunc_xib, ++ Opt_shwh, ++ Opt_plink, Opt_list_plink, ++ Opt_udba, ++ Opt_dio, ++ Opt_diropq, Opt_diropq_a, Opt_diropq_w, ++ Opt_warn_perm, ++ Opt_wbr_copyup, Opt_wbr_create, ++ Opt_fhsm_sec, ++ Opt_verbose, Opt_noverbose, ++ Opt_sum, Opt_wsum, ++ Opt_dirperm1, ++ Opt_dirren, ++ Opt_acl, ++ Opt_tail, Opt_ignore, Opt_ignore_silent, Opt_err ++}; ++ ++/* ---------------------------------------------------------------------- */ ++ ++/* mount flags */ ++#define AuOpt_XINO 1 /* external inode number bitmap ++ and translation table */ ++#define AuOpt_TRUNC_XINO (1 << 1) /* truncate xino files */ ++#define AuOpt_UDBA_NONE (1 << 2) /* users direct branch access */ ++#define AuOpt_UDBA_REVAL (1 << 3) ++#define AuOpt_UDBA_HNOTIFY (1 << 4) ++#define AuOpt_SHWH (1 << 5) /* show whiteout */ ++#define AuOpt_PLINK (1 << 6) /* pseudo-link */ ++#define AuOpt_DIRPERM1 (1 << 7) /* ignore the lower dir's perm ++ bits */ ++#define AuOpt_ALWAYS_DIROPQ (1 << 9) /* policy to creating diropq */ ++#define AuOpt_SUM (1 << 10) /* summation for statfs(2) */ ++#define AuOpt_SUM_W (1 << 11) /* unimplemented */ ++#define AuOpt_WARN_PERM (1 << 12) /* warn when add-branch */ ++#define AuOpt_VERBOSE (1 << 13) /* print the cause of error */ ++#define AuOpt_DIO (1 << 14) /* direct io */ ++#define AuOpt_DIRREN (1 << 15) /* directory rename */ ++ ++#ifndef CONFIG_AUFS_HNOTIFY ++#undef AuOpt_UDBA_HNOTIFY ++#define AuOpt_UDBA_HNOTIFY 0 ++#endif ++#ifndef CONFIG_AUFS_DIRREN ++#undef AuOpt_DIRREN ++#define AuOpt_DIRREN 0 ++#endif ++#ifndef CONFIG_AUFS_SHWH ++#undef AuOpt_SHWH ++#define AuOpt_SHWH 0 ++#endif ++ ++#define AuOpt_Def (AuOpt_XINO \ ++ | AuOpt_UDBA_REVAL \ ++ | AuOpt_PLINK \ ++ /* | AuOpt_DIRPERM1 */ \ ++ | AuOpt_WARN_PERM) ++#define AuOptMask_UDBA (AuOpt_UDBA_NONE \ ++ | AuOpt_UDBA_REVAL \ ++ | AuOpt_UDBA_HNOTIFY) ++ ++#define AuOpt_LkupDirFlags (LOOKUP_FOLLOW | LOOKUP_DIRECTORY) ++ ++#define au_opt_test(flags, name) (flags & AuOpt_##name) ++#define au_opt_set(flags, name) do { \ ++ BUILD_BUG_ON(AuOpt_##name & AuOptMask_UDBA); \ ++ ((flags) |= AuOpt_##name); \ ++} while (0) ++#define au_opt_set_udba(flags, name) do { \ ++ (flags) &= ~AuOptMask_UDBA; \ ++ ((flags) |= AuOpt_##name); \ ++} while (0) ++#define au_opt_clr(flags, name) do { \ ++ ((flags) &= ~AuOpt_##name); \ ++} while (0) ++ ++static inline unsigned int au_opts_plink(unsigned int mntflags) ++{ ++#ifdef CONFIG_PROC_FS ++ return mntflags; ++#else ++ return mntflags & ~AuOpt_PLINK; ++#endif ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++/* policies to select one among multiple writable branches */ ++enum { ++ AuWbrCreate_TDP, /* top down parent */ ++ AuWbrCreate_RR, /* round robin */ ++ AuWbrCreate_MFS, /* most free space */ ++ AuWbrCreate_MFSV, /* mfs with seconds */ ++ AuWbrCreate_MFSRR, /* mfs then rr */ ++ AuWbrCreate_MFSRRV, /* mfs then rr with seconds */ ++ AuWbrCreate_TDMFS, /* top down regardless parent and mfs */ ++ AuWbrCreate_TDMFSV, /* top down regardless parent and mfs */ ++ AuWbrCreate_PMFS, /* parent and mfs */ ++ AuWbrCreate_PMFSV, /* parent and mfs with seconds */ ++ AuWbrCreate_PMFSRR, /* parent, mfs and round-robin */ ++ AuWbrCreate_PMFSRRV, /* plus seconds */ ++ ++ AuWbrCreate_Def = AuWbrCreate_TDP ++}; ++ ++enum { ++ AuWbrCopyup_TDP, /* top down parent */ ++ AuWbrCopyup_BUP, /* bottom up parent */ ++ AuWbrCopyup_BU, /* bottom up */ ++ ++ AuWbrCopyup_Def = AuWbrCopyup_TDP ++}; ++ ++/* ---------------------------------------------------------------------- */ ++ ++struct file; ++ ++struct au_opt_add { ++ aufs_bindex_t bindex; ++ char *pathname; ++ int perm; ++ struct path path; ++}; ++ ++struct au_opt_del { ++ char *pathname; ++ struct path h_path; ++}; ++ ++struct au_opt_mod { ++ char *path; ++ int perm; ++ struct dentry *h_root; ++}; ++ ++struct au_opt_xino { ++ char *path; ++ struct file *file; ++}; ++ ++struct au_opt_xino_itrunc { ++ aufs_bindex_t bindex; ++}; ++ ++struct au_opt_wbr_create { ++ int wbr_create; ++ int mfs_second; ++ unsigned long long mfsrr_watermark; ++}; ++ ++struct au_opt { ++ int type; ++ union { ++ struct au_opt_xino xino; ++ struct au_opt_xino_itrunc xino_itrunc; ++ struct au_opt_add add; ++ struct au_opt_del del; ++ struct au_opt_mod mod; ++ int dirwh; ++ int rdcache; ++ unsigned int rdblk; ++ unsigned int rdhash; ++ int udba; ++ struct au_opt_wbr_create wbr_create; ++ int wbr_copyup; ++ unsigned int fhsm_second; ++ bool tf; /* generic flag, true or false */ ++ }; ++}; ++ ++/* opts flags */ ++#define AuOpts_REMOUNT 1 ++#define AuOpts_REFRESH (1 << 1) ++#define AuOpts_TRUNC_XIB (1 << 2) ++#define AuOpts_REFRESH_DYAOP (1 << 3) ++#define AuOpts_REFRESH_IDOP (1 << 4) ++#define AuOpts_DR_FLUSHED (1 << 5) ++#define au_ftest_opts(flags, name) ((flags) & AuOpts_##name) ++#define au_fset_opts(flags, name) \ ++ do { (flags) |= AuOpts_##name; } while (0) ++#define au_fclr_opts(flags, name) \ ++ do { (flags) &= ~AuOpts_##name; } while (0) ++ ++#ifndef CONFIG_AUFS_DIRREN ++#undef AuOpts_DR_FLUSHED ++#define AuOpts_DR_FLUSHED 0 ++#endif ++ ++struct au_opts { ++ struct au_opt *opt; ++ int max_opt; ++ ++ unsigned int given_udba; ++ unsigned int flags; ++ unsigned long sb_flags; ++}; ++ ++/* ---------------------------------------------------------------------- */ ++ ++/* opts.c */ ++int au_br_perm_val(char *perm); ++void au_optstr_br_perm(au_br_perm_str_t *str, int perm); ++int au_udba_val(char *str); ++const char *au_optstr_udba(int udba); ++int au_wbr_create_val(char *str, struct au_opt_wbr_create *create); ++const char *au_optstr_wbr_create(int wbr_create); ++int au_wbr_copyup_val(char *str); ++const char *au_optstr_wbr_copyup(int wbr_copyup); ++ ++int au_opt_add(struct au_opt *opt, char *opt_str, unsigned long sb_flags, ++ aufs_bindex_t bindex); ++struct super_block; ++int au_opts_verify(struct super_block *sb, unsigned long sb_flags, ++ unsigned int pending); ++int au_opts_mount(struct super_block *sb, struct au_opts *opts); ++int au_opts_remount(struct super_block *sb, struct au_opts *opts); ++ ++unsigned int au_opt_udba(struct super_block *sb); ++ ++/* fsctx.c */ ++int aufs_fsctx_init(struct fs_context *fc); ++extern const struct fs_parameter_spec aufs_fsctx_paramspec[]; ++ ++#endif /* __KERNEL__ */ ++#endif /* __AUFS_OPTS_H__ */ +diff -Naur linux-5.15/fs/aufs/plink.c aufs5-linux-aufs5.15/fs/aufs/plink.c +--- linux-5.15/fs/aufs/plink.c 1970-01-01 03:00:00.000000000 +0300 ++++ aufs5-linux-aufs5.15/fs/aufs/plink.c 2022-03-07 13:48:09.000000000 +0300 +@@ -0,0 +1,503 @@ ++// SPDX-License-Identifier: GPL-2.0 ++/* ++ * Copyright (C) 2005-2021 Junjiro R. Okajima ++ */ ++ ++/* ++ * pseudo-link ++ */ ++ ++#include "aufs.h" ++ ++/* ++ * the pseudo-link maintenance mode. ++ * during a user process maintains the pseudo-links, ++ * prohibit adding a new plink and branch manipulation. ++ * ++ * Flags ++ * NOPLM: ++ * For entry functions which will handle plink, and i_mutex is already held ++ * in VFS. ++ * They cannot wait and should return an error at once. ++ * Callers has to check the error. ++ * NOPLMW: ++ * For entry functions which will handle plink, but i_mutex is not held ++ * in VFS. ++ * They can wait the plink maintenance mode to finish. ++ * ++ * They behave like F_SETLK and F_SETLKW. ++ * If the caller never handle plink, then both flags are unnecessary. ++ */ ++ ++int au_plink_maint(struct super_block *sb, int flags) ++{ ++ int err; ++ pid_t pid, ppid; ++ struct task_struct *parent, *prev; ++ struct au_sbinfo *sbi; ++ ++ SiMustAnyLock(sb); ++ ++ err = 0; ++ if (!au_opt_test(au_mntflags(sb), PLINK)) ++ goto out; ++ ++ sbi = au_sbi(sb); ++ pid = sbi->si_plink_maint_pid; ++ if (!pid || pid == current->pid) ++ goto out; ++ ++ /* todo: it highly depends upon /sbin/mount.aufs */ ++ prev = NULL; ++ parent = current; ++ ppid = 0; ++ rcu_read_lock(); ++ while (1) { ++ parent = rcu_dereference(parent->real_parent); ++ if (parent == prev) ++ break; ++ ppid = task_pid_vnr(parent); ++ if (pid == ppid) { ++ rcu_read_unlock(); ++ goto out; ++ } ++ prev = parent; ++ } ++ rcu_read_unlock(); ++ ++ if (au_ftest_lock(flags, NOPLMW)) { ++ /* if there is no i_mutex lock in VFS, we don't need to wait */ ++ /* AuDebugOn(!lockdep_depth(current)); */ ++ while (sbi->si_plink_maint_pid) { ++ si_read_unlock(sb); ++ /* gave up wake_up_bit() */ ++ wait_event(sbi->si_plink_wq, !sbi->si_plink_maint_pid); ++ ++ if (au_ftest_lock(flags, FLUSH)) ++ au_nwt_flush(&sbi->si_nowait); ++ si_noflush_read_lock(sb); ++ } ++ } else if (au_ftest_lock(flags, NOPLM)) { ++ AuDbg("ppid %d, pid %d\n", ppid, pid); ++ err = -EAGAIN; ++ } ++ ++out: ++ return err; ++} ++ ++void au_plink_maint_leave(struct au_sbinfo *sbinfo) ++{ ++ spin_lock(&sbinfo->si_plink_maint_lock); ++ sbinfo->si_plink_maint_pid = 0; ++ spin_unlock(&sbinfo->si_plink_maint_lock); ++ wake_up_all(&sbinfo->si_plink_wq); ++} ++ ++int au_plink_maint_enter(struct super_block *sb) ++{ ++ int err; ++ struct au_sbinfo *sbinfo; ++ ++ err = 0; ++ sbinfo = au_sbi(sb); ++ /* make sure i am the only one in this fs */ ++ si_write_lock(sb, AuLock_FLUSH); ++ if (au_opt_test(au_mntflags(sb), PLINK)) { ++ spin_lock(&sbinfo->si_plink_maint_lock); ++ if (!sbinfo->si_plink_maint_pid) ++ sbinfo->si_plink_maint_pid = current->pid; ++ else ++ err = -EBUSY; ++ spin_unlock(&sbinfo->si_plink_maint_lock); ++ } ++ si_write_unlock(sb); ++ ++ return err; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++#ifdef CONFIG_AUFS_DEBUG ++void au_plink_list(struct super_block *sb) ++{ ++ int i; ++ struct au_sbinfo *sbinfo; ++ struct hlist_bl_head *hbl; ++ struct hlist_bl_node *pos; ++ struct au_icntnr *icntnr; ++ ++ SiMustAnyLock(sb); ++ ++ sbinfo = au_sbi(sb); ++ AuDebugOn(!au_opt_test(au_mntflags(sb), PLINK)); ++ AuDebugOn(au_plink_maint(sb, AuLock_NOPLM)); ++ ++ for (i = 0; i < AuPlink_NHASH; i++) { ++ hbl = sbinfo->si_plink + i; ++ hlist_bl_lock(hbl); ++ hlist_bl_for_each_entry(icntnr, pos, hbl, plink) ++ AuDbg("%lu\n", icntnr->vfs_inode.i_ino); ++ hlist_bl_unlock(hbl); ++ } ++} ++#endif ++ ++/* is the inode pseudo-linked? */ ++int au_plink_test(struct inode *inode) ++{ ++ int found, i; ++ struct au_sbinfo *sbinfo; ++ struct hlist_bl_head *hbl; ++ struct hlist_bl_node *pos; ++ struct au_icntnr *icntnr; ++ ++ sbinfo = au_sbi(inode->i_sb); ++ AuRwMustAnyLock(&sbinfo->si_rwsem); ++ AuDebugOn(!au_opt_test(au_mntflags(inode->i_sb), PLINK)); ++ AuDebugOn(au_plink_maint(inode->i_sb, AuLock_NOPLM)); ++ ++ found = 0; ++ i = au_plink_hash(inode->i_ino); ++ hbl = sbinfo->si_plink + i; ++ hlist_bl_lock(hbl); ++ hlist_bl_for_each_entry(icntnr, pos, hbl, plink) ++ if (&icntnr->vfs_inode == inode) { ++ found = 1; ++ break; ++ } ++ hlist_bl_unlock(hbl); ++ return found; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++/* ++ * generate a name for plink. ++ * the file will be stored under AUFS_WH_PLINKDIR. ++ */ ++/* 20 is max digits length of ulong 64 */ ++#define PLINK_NAME_LEN ((20 + 1) * 2) ++ ++static int plink_name(char *name, int len, struct inode *inode, ++ aufs_bindex_t bindex) ++{ ++ int rlen; ++ struct inode *h_inode; ++ ++ h_inode = au_h_iptr(inode, bindex); ++ rlen = snprintf(name, len, "%lu.%lu", inode->i_ino, h_inode->i_ino); ++ return rlen; ++} ++ ++struct au_do_plink_lkup_args { ++ struct dentry **errp; ++ struct qstr *tgtname; ++ struct path *h_ppath; ++}; ++ ++static struct dentry *au_do_plink_lkup(struct qstr *tgtname, ++ struct path *h_ppath) ++{ ++ struct dentry *h_dentry; ++ struct inode *h_inode; ++ ++ h_inode = d_inode(h_ppath->dentry); ++ inode_lock_shared_nested(h_inode, AuLsc_I_CHILD2); ++ h_dentry = vfsub_lkup_one(tgtname, h_ppath); ++ inode_unlock_shared(h_inode); ++ ++ return h_dentry; ++} ++ ++static void au_call_do_plink_lkup(void *args) ++{ ++ struct au_do_plink_lkup_args *a = args; ++ *a->errp = au_do_plink_lkup(a->tgtname, a->h_ppath); ++} ++ ++/* lookup the plink-ed @inode under the branch at @bindex */ ++struct dentry *au_plink_lkup(struct inode *inode, aufs_bindex_t bindex) ++{ ++ struct dentry *h_dentry; ++ struct au_branch *br; ++ struct path h_ppath; ++ int wkq_err; ++ char a[PLINK_NAME_LEN]; ++ struct qstr tgtname = QSTR_INIT(a, 0); ++ ++ AuDebugOn(au_plink_maint(inode->i_sb, AuLock_NOPLM)); ++ ++ br = au_sbr(inode->i_sb, bindex); ++ h_ppath.dentry = br->br_wbr->wbr_plink; ++ h_ppath.mnt = au_br_mnt(br); ++ tgtname.len = plink_name(a, sizeof(a), inode, bindex); ++ ++ if (!uid_eq(current_fsuid(), GLOBAL_ROOT_UID)) { ++ struct au_do_plink_lkup_args args = { ++ .errp = &h_dentry, ++ .tgtname = &tgtname, ++ .h_ppath = &h_ppath ++ }; ++ ++ wkq_err = au_wkq_wait(au_call_do_plink_lkup, &args); ++ if (unlikely(wkq_err)) ++ h_dentry = ERR_PTR(wkq_err); ++ } else ++ h_dentry = au_do_plink_lkup(&tgtname, &h_ppath); ++ ++ return h_dentry; ++} ++ ++/* create a pseudo-link */ ++static int do_whplink(struct qstr *tgt, struct path *h_ppath, ++ struct dentry *h_dentry) ++{ ++ int err; ++ struct path h_path; ++ struct inode *h_dir, *delegated; ++ ++ h_dir = d_inode(h_ppath->dentry); ++ inode_lock_nested(h_dir, AuLsc_I_CHILD2); ++ h_path.mnt = h_ppath->mnt; ++again: ++ h_path.dentry = vfsub_lkup_one(tgt, h_ppath); ++ err = PTR_ERR(h_path.dentry); ++ if (IS_ERR(h_path.dentry)) ++ goto out; ++ ++ err = 0; ++ /* wh.plink dir is not monitored */ ++ /* todo: is it really safe? */ ++ if (d_is_positive(h_path.dentry) ++ && d_inode(h_path.dentry) != d_inode(h_dentry)) { ++ delegated = NULL; ++ err = vfsub_unlink(h_dir, &h_path, &delegated, /*force*/0); ++ if (unlikely(err == -EWOULDBLOCK)) { ++ pr_warn("cannot retry for NFSv4 delegation" ++ " for an internal unlink\n"); ++ iput(delegated); ++ } ++ dput(h_path.dentry); ++ h_path.dentry = NULL; ++ if (!err) ++ goto again; ++ } ++ if (!err && d_is_negative(h_path.dentry)) { ++ delegated = NULL; ++ err = vfsub_link(h_dentry, h_dir, &h_path, &delegated); ++ if (unlikely(err == -EWOULDBLOCK)) { ++ pr_warn("cannot retry for NFSv4 delegation" ++ " for an internal link\n"); ++ iput(delegated); ++ } ++ } ++ dput(h_path.dentry); ++ ++out: ++ inode_unlock(h_dir); ++ return err; ++} ++ ++struct do_whplink_args { ++ int *errp; ++ struct qstr *tgt; ++ struct path *h_ppath; ++ struct dentry *h_dentry; ++}; ++ ++static void call_do_whplink(void *args) ++{ ++ struct do_whplink_args *a = args; ++ *a->errp = do_whplink(a->tgt, a->h_ppath, a->h_dentry); ++} ++ ++static int whplink(struct dentry *h_dentry, struct inode *inode, ++ aufs_bindex_t bindex) ++{ ++ int err, wkq_err; ++ struct au_branch *br; ++ struct au_wbr *wbr; ++ struct path h_ppath; ++ char a[PLINK_NAME_LEN]; ++ struct qstr tgtname = QSTR_INIT(a, 0); ++ ++ br = au_sbr(inode->i_sb, bindex); ++ wbr = br->br_wbr; ++ h_ppath.dentry = wbr->wbr_plink; ++ h_ppath.mnt = au_br_mnt(br); ++ tgtname.len = plink_name(a, sizeof(a), inode, bindex); ++ ++ /* always superio. */ ++ if (!uid_eq(current_fsuid(), GLOBAL_ROOT_UID)) { ++ struct do_whplink_args args = { ++ .errp = &err, ++ .tgt = &tgtname, ++ .h_ppath = &h_ppath, ++ .h_dentry = h_dentry ++ }; ++ wkq_err = au_wkq_wait(call_do_whplink, &args); ++ if (unlikely(wkq_err)) ++ err = wkq_err; ++ } else ++ err = do_whplink(&tgtname, &h_ppath, h_dentry); ++ ++ return err; ++} ++ ++/* ++ * create a new pseudo-link for @h_dentry on @bindex. ++ * the linked inode is held in aufs @inode. ++ */ ++void au_plink_append(struct inode *inode, aufs_bindex_t bindex, ++ struct dentry *h_dentry) ++{ ++ struct super_block *sb; ++ struct au_sbinfo *sbinfo; ++ struct hlist_bl_head *hbl; ++ struct hlist_bl_node *pos; ++ struct au_icntnr *icntnr; ++ int found, err, cnt, i; ++ ++ sb = inode->i_sb; ++ sbinfo = au_sbi(sb); ++ AuDebugOn(!au_opt_test(au_mntflags(sb), PLINK)); ++ AuDebugOn(au_plink_maint(sb, AuLock_NOPLM)); ++ ++ found = au_plink_test(inode); ++ if (found) ++ return; ++ ++ i = au_plink_hash(inode->i_ino); ++ hbl = sbinfo->si_plink + i; ++ au_igrab(inode); ++ ++ hlist_bl_lock(hbl); ++ hlist_bl_for_each_entry(icntnr, pos, hbl, plink) { ++ if (&icntnr->vfs_inode == inode) { ++ found = 1; ++ break; ++ } ++ } ++ if (!found) { ++ icntnr = container_of(inode, struct au_icntnr, vfs_inode); ++ hlist_bl_add_head(&icntnr->plink, hbl); ++ } ++ hlist_bl_unlock(hbl); ++ if (!found) { ++ cnt = au_hbl_count(hbl); ++#define msg "unexpectedly unbalanced or too many pseudo-links" ++ if (cnt > AUFS_PLINK_WARN) ++ AuWarn1(msg ", %d\n", cnt); ++#undef msg ++ err = whplink(h_dentry, inode, bindex); ++ if (unlikely(err)) { ++ pr_warn("err %d, damaged pseudo link.\n", err); ++ au_hbl_del(&icntnr->plink, hbl); ++ iput(&icntnr->vfs_inode); ++ } ++ } else ++ iput(&icntnr->vfs_inode); ++} ++ ++/* free all plinks */ ++void au_plink_put(struct super_block *sb, int verbose) ++{ ++ int i, warned; ++ struct au_sbinfo *sbinfo; ++ struct hlist_bl_head *hbl; ++ struct hlist_bl_node *pos, *tmp; ++ struct au_icntnr *icntnr; ++ ++ SiMustWriteLock(sb); ++ ++ sbinfo = au_sbi(sb); ++ AuDebugOn(!au_opt_test(au_mntflags(sb), PLINK)); ++ AuDebugOn(au_plink_maint(sb, AuLock_NOPLM)); ++ ++ /* no spin_lock since sbinfo is write-locked */ ++ warned = 0; ++ for (i = 0; i < AuPlink_NHASH; i++) { ++ hbl = sbinfo->si_plink + i; ++ if (!warned && verbose && !hlist_bl_empty(hbl)) { ++ pr_warn("pseudo-link is not flushed"); ++ warned = 1; ++ } ++ hlist_bl_for_each_entry_safe(icntnr, pos, tmp, hbl, plink) ++ iput(&icntnr->vfs_inode); ++ INIT_HLIST_BL_HEAD(hbl); ++ } ++} ++ ++void au_plink_clean(struct super_block *sb, int verbose) ++{ ++ struct dentry *root; ++ ++ root = sb->s_root; ++ aufs_write_lock(root); ++ if (au_opt_test(au_mntflags(sb), PLINK)) ++ au_plink_put(sb, verbose); ++ aufs_write_unlock(root); ++} ++ ++static int au_plink_do_half_refresh(struct inode *inode, aufs_bindex_t br_id) ++{ ++ int do_put; ++ aufs_bindex_t btop, bbot, bindex; ++ ++ do_put = 0; ++ btop = au_ibtop(inode); ++ bbot = au_ibbot(inode); ++ if (btop >= 0) { ++ for (bindex = btop; bindex <= bbot; bindex++) { ++ if (!au_h_iptr(inode, bindex) ++ || au_ii_br_id(inode, bindex) != br_id) ++ continue; ++ au_set_h_iptr(inode, bindex, NULL, 0); ++ do_put = 1; ++ break; ++ } ++ if (do_put) ++ for (bindex = btop; bindex <= bbot; bindex++) ++ if (au_h_iptr(inode, bindex)) { ++ do_put = 0; ++ break; ++ } ++ } else ++ do_put = 1; ++ ++ return do_put; ++} ++ ++/* free the plinks on a branch specified by @br_id */ ++void au_plink_half_refresh(struct super_block *sb, aufs_bindex_t br_id) ++{ ++ struct au_sbinfo *sbinfo; ++ struct hlist_bl_head *hbl; ++ struct hlist_bl_node *pos, *tmp; ++ struct au_icntnr *icntnr; ++ struct inode *inode; ++ int i, do_put; ++ ++ SiMustWriteLock(sb); ++ ++ sbinfo = au_sbi(sb); ++ AuDebugOn(!au_opt_test(au_mntflags(sb), PLINK)); ++ AuDebugOn(au_plink_maint(sb, AuLock_NOPLM)); ++ ++ /* no bit_lock since sbinfo is write-locked */ ++ for (i = 0; i < AuPlink_NHASH; i++) { ++ hbl = sbinfo->si_plink + i; ++ hlist_bl_for_each_entry_safe(icntnr, pos, tmp, hbl, plink) { ++ inode = au_igrab(&icntnr->vfs_inode); ++ ii_write_lock_child(inode); ++ do_put = au_plink_do_half_refresh(inode, br_id); ++ if (do_put) { ++ hlist_bl_del(&icntnr->plink); ++ iput(inode); ++ } ++ ii_write_unlock(inode); ++ iput(inode); ++ } ++ } ++} +diff -Naur linux-5.15/fs/aufs/poll.c aufs5-linux-aufs5.15/fs/aufs/poll.c +--- linux-5.15/fs/aufs/poll.c 1970-01-01 03:00:00.000000000 +0300 ++++ aufs5-linux-aufs5.15/fs/aufs/poll.c 2022-03-07 13:48:09.000000000 +0300 +@@ -0,0 +1,38 @@ ++// SPDX-License-Identifier: GPL-2.0 ++/* ++ * Copyright (C) 2005-2021 Junjiro R. Okajima ++ */ ++ ++/* ++ * poll operation ++ * There is only one filesystem which implements ->poll operation, currently. ++ */ ++ ++#include "aufs.h" ++ ++__poll_t aufs_poll(struct file *file, struct poll_table_struct *pt) ++{ ++ __poll_t mask; ++ struct file *h_file; ++ struct super_block *sb; ++ ++ /* We should pretend an error happened. */ ++ mask = EPOLLERR /* | EPOLLIN | EPOLLOUT */; ++ sb = file->f_path.dentry->d_sb; ++ si_read_lock(sb, AuLock_FLUSH | AuLock_NOPLMW); ++ ++ h_file = au_read_pre(file, /*keep_fi*/0, /*lsc*/0); ++ if (IS_ERR(h_file)) { ++ AuDbg("h_file %ld\n", PTR_ERR(h_file)); ++ goto out; ++ } ++ ++ mask = vfs_poll(h_file, pt); ++ fput(h_file); /* instead of au_read_post() */ ++ ++out: ++ si_read_unlock(sb); ++ if (mask & EPOLLERR) ++ AuDbg("mask 0x%x\n", mask); ++ return mask; ++} +diff -Naur linux-5.15/fs/aufs/posix_acl.c aufs5-linux-aufs5.15/fs/aufs/posix_acl.c +--- linux-5.15/fs/aufs/posix_acl.c 1970-01-01 03:00:00.000000000 +0300 ++++ aufs5-linux-aufs5.15/fs/aufs/posix_acl.c 2022-03-07 13:48:09.000000000 +0300 +@@ -0,0 +1,98 @@ ++// SPDX-License-Identifier: GPL-2.0 ++/* ++ * Copyright (C) 2014-2021 Junjiro R. Okajima ++ */ ++ ++/* ++ * posix acl operations ++ */ ++ ++#include ++#include "aufs.h" ++ ++struct posix_acl *aufs_get_acl(struct inode *inode, int type, bool rcu) ++{ ++ struct posix_acl *acl; ++ int err; ++ aufs_bindex_t bindex; ++ struct inode *h_inode; ++ struct super_block *sb; ++ ++ acl = ERR_PTR(-ECHILD); ++ if (rcu) ++ goto out; ++ ++ acl = NULL; ++ sb = inode->i_sb; ++ si_read_lock(sb, AuLock_FLUSH); ++ ii_read_lock_child(inode); ++ if (!(sb->s_flags & SB_POSIXACL)) ++ goto unlock; ++ ++ bindex = au_ibtop(inode); ++ h_inode = au_h_iptr(inode, bindex); ++ if (unlikely(!h_inode ++ || ((h_inode->i_mode & S_IFMT) ++ != (inode->i_mode & S_IFMT)))) { ++ err = au_busy_or_stale(); ++ acl = ERR_PTR(err); ++ goto unlock; ++ } ++ ++ /* always topmost only */ ++ acl = get_acl(h_inode, type); ++ if (IS_ERR(acl)) ++ forget_cached_acl(inode, type); ++ else ++ set_cached_acl(inode, type, acl); ++ ++unlock: ++ ii_read_unlock(inode); ++ si_read_unlock(sb); ++ ++out: ++ AuTraceErrPtr(acl); ++ return acl; ++} ++ ++int aufs_set_acl(struct user_namespace *userns, struct inode *inode, ++ struct posix_acl *acl, int type) ++{ ++ int err; ++ ssize_t ssz; ++ struct dentry *dentry; ++ struct au_sxattr arg = { ++ .type = AU_ACL_SET, ++ .u.acl_set = { ++ .acl = acl, ++ .type = type ++ }, ++ }; ++ ++ IMustLock(inode); ++ ++ if (inode->i_ino == AUFS_ROOT_INO) ++ dentry = dget(inode->i_sb->s_root); ++ else { ++ dentry = d_find_alias(inode); ++ if (!dentry) ++ dentry = d_find_any_alias(inode); ++ if (!dentry) { ++ pr_warn("cannot handle this inode, " ++ "please report to aufs-users ML\n"); ++ err = -ENOENT; ++ goto out; ++ } ++ } ++ ++ ssz = au_sxattr(dentry, inode, &arg); ++ /* forget even it if succeeds since the branch might set differently */ ++ forget_cached_acl(inode, type); ++ dput(dentry); ++ err = ssz; ++ if (ssz >= 0) ++ err = 0; ++ ++out: ++ return err; ++} +diff -Naur linux-5.15/fs/aufs/procfs.c aufs5-linux-aufs5.15/fs/aufs/procfs.c +--- linux-5.15/fs/aufs/procfs.c 1970-01-01 03:00:00.000000000 +0300 ++++ aufs5-linux-aufs5.15/fs/aufs/procfs.c 2022-03-07 13:48:09.000000000 +0300 +@@ -0,0 +1,157 @@ ++// SPDX-License-Identifier: GPL-2.0 ++/* ++ * Copyright (C) 2010-2021 Junjiro R. Okajima ++ */ ++ ++/* ++ * procfs interfaces ++ */ ++ ++#include ++#include "aufs.h" ++ ++static int au_procfs_plm_release(struct inode *inode, struct file *file) ++{ ++ struct au_sbinfo *sbinfo; ++ ++ sbinfo = file->private_data; ++ if (sbinfo) { ++ au_plink_maint_leave(sbinfo); ++ kobject_put(&sbinfo->si_kobj); ++ } ++ ++ return 0; ++} ++ ++static void au_procfs_plm_write_clean(struct file *file) ++{ ++ struct au_sbinfo *sbinfo; ++ ++ sbinfo = file->private_data; ++ if (sbinfo) ++ au_plink_clean(sbinfo->si_sb, /*verbose*/0); ++} ++ ++static int au_procfs_plm_write_si(struct file *file, unsigned long id) ++{ ++ int err; ++ struct super_block *sb; ++ struct au_sbinfo *sbinfo; ++ struct hlist_bl_node *pos; ++ ++ err = -EBUSY; ++ if (unlikely(file->private_data)) ++ goto out; ++ ++ sb = NULL; ++ /* don't use au_sbilist_lock() here */ ++ hlist_bl_lock(&au_sbilist); ++ hlist_bl_for_each_entry(sbinfo, pos, &au_sbilist, si_list) ++ if (id == sysaufs_si_id(sbinfo)) { ++ if (kobject_get_unless_zero(&sbinfo->si_kobj)) ++ sb = sbinfo->si_sb; ++ break; ++ } ++ hlist_bl_unlock(&au_sbilist); ++ ++ err = -EINVAL; ++ if (unlikely(!sb)) ++ goto out; ++ ++ err = au_plink_maint_enter(sb); ++ if (!err) ++ /* keep kobject_get() */ ++ file->private_data = sbinfo; ++ else ++ kobject_put(&sbinfo->si_kobj); ++out: ++ return err; ++} ++ ++/* ++ * Accept a valid "si=xxxx" only. ++ * Once it is accepted successfully, accept "clean" too. ++ */ ++static ssize_t au_procfs_plm_write(struct file *file, const char __user *ubuf, ++ size_t count, loff_t *ppos) ++{ ++ ssize_t err; ++ unsigned long id; ++ /* last newline is allowed */ ++ char buf[3 + sizeof(unsigned long) * 2 + 1]; ++ ++ err = -EACCES; ++ if (unlikely(!capable(CAP_SYS_ADMIN))) ++ goto out; ++ ++ err = -EINVAL; ++ if (unlikely(count > sizeof(buf))) ++ goto out; ++ ++ err = copy_from_user(buf, ubuf, count); ++ if (unlikely(err)) { ++ err = -EFAULT; ++ goto out; ++ } ++ buf[count] = 0; ++ ++ err = -EINVAL; ++ if (!strcmp("clean", buf)) { ++ au_procfs_plm_write_clean(file); ++ goto out_success; ++ } else if (unlikely(strncmp("si=", buf, 3))) ++ goto out; ++ ++ err = kstrtoul(buf + 3, 16, &id); ++ if (unlikely(err)) ++ goto out; ++ ++ err = au_procfs_plm_write_si(file, id); ++ if (unlikely(err)) ++ goto out; ++ ++out_success: ++ err = count; /* success */ ++out: ++ return err; ++} ++ ++static const struct proc_ops au_procfs_plm_op = { ++ .proc_write = au_procfs_plm_write, ++ .proc_release = au_procfs_plm_release ++}; ++ ++/* ---------------------------------------------------------------------- */ ++ ++static struct proc_dir_entry *au_procfs_dir; ++ ++void au_procfs_fin(void) ++{ ++ remove_proc_entry(AUFS_PLINK_MAINT_NAME, au_procfs_dir); ++ remove_proc_entry(AUFS_PLINK_MAINT_DIR, NULL); ++} ++ ++int __init au_procfs_init(void) ++{ ++ int err; ++ struct proc_dir_entry *entry; ++ ++ err = -ENOMEM; ++ au_procfs_dir = proc_mkdir(AUFS_PLINK_MAINT_DIR, NULL); ++ if (unlikely(!au_procfs_dir)) ++ goto out; ++ ++ entry = proc_create(AUFS_PLINK_MAINT_NAME, S_IFREG | 0200, ++ au_procfs_dir, &au_procfs_plm_op); ++ if (unlikely(!entry)) ++ goto out_dir; ++ ++ err = 0; ++ goto out; /* success */ ++ ++ ++out_dir: ++ remove_proc_entry(AUFS_PLINK_MAINT_DIR, NULL); ++out: ++ return err; ++} +diff -Naur linux-5.15/fs/aufs/rdu.c aufs5-linux-aufs5.15/fs/aufs/rdu.c +--- linux-5.15/fs/aufs/rdu.c 1970-01-01 03:00:00.000000000 +0300 ++++ aufs5-linux-aufs5.15/fs/aufs/rdu.c 2022-03-07 13:48:09.000000000 +0300 +@@ -0,0 +1,371 @@ ++// SPDX-License-Identifier: GPL-2.0 ++/* ++ * Copyright (C) 2005-2021 Junjiro R. Okajima ++ */ ++ ++/* ++ * readdir in userspace. ++ */ ++ ++#include ++#include ++#include ++#include "aufs.h" ++ ++/* bits for struct aufs_rdu.flags */ ++#define AuRdu_CALLED 1 ++#define AuRdu_CONT (1 << 1) ++#define AuRdu_FULL (1 << 2) ++#define au_ftest_rdu(flags, name) ((flags) & AuRdu_##name) ++#define au_fset_rdu(flags, name) \ ++ do { (flags) |= AuRdu_##name; } while (0) ++#define au_fclr_rdu(flags, name) \ ++ do { (flags) &= ~AuRdu_##name; } while (0) ++ ++struct au_rdu_arg { ++ struct dir_context ctx; ++ struct aufs_rdu *rdu; ++ union au_rdu_ent_ul ent; ++ unsigned long end; ++ ++ struct super_block *sb; ++ int err; ++}; ++ ++static int au_rdu_fill(struct dir_context *ctx, const char *name, int nlen, ++ loff_t offset, u64 h_ino, unsigned int d_type) ++{ ++ int err, len; ++ struct au_rdu_arg *arg = container_of(ctx, struct au_rdu_arg, ctx); ++ struct aufs_rdu *rdu = arg->rdu; ++ struct au_rdu_ent ent; ++ ++ err = 0; ++ arg->err = 0; ++ au_fset_rdu(rdu->cookie.flags, CALLED); ++ len = au_rdu_len(nlen); ++ if (arg->ent.ul + len < arg->end) { ++ ent.ino = h_ino; ++ ent.bindex = rdu->cookie.bindex; ++ ent.type = d_type; ++ ent.nlen = nlen; ++ if (unlikely(nlen > AUFS_MAX_NAMELEN)) ++ ent.type = DT_UNKNOWN; ++ ++ /* unnecessary to support mmap_sem since this is a dir */ ++ err = -EFAULT; ++ if (copy_to_user(arg->ent.e, &ent, sizeof(ent))) ++ goto out; ++ if (copy_to_user(arg->ent.e->name, name, nlen)) ++ goto out; ++ /* the terminating NULL */ ++ if (__put_user(0, arg->ent.e->name + nlen)) ++ goto out; ++ err = 0; ++ /* AuDbg("%p, %.*s\n", arg->ent.p, nlen, name); */ ++ arg->ent.ul += len; ++ rdu->rent++; ++ } else { ++ err = -EFAULT; ++ au_fset_rdu(rdu->cookie.flags, FULL); ++ rdu->full = 1; ++ rdu->tail = arg->ent; ++ } ++ ++out: ++ /* AuTraceErr(err); */ ++ return err; ++} ++ ++static int au_rdu_do(struct file *h_file, struct au_rdu_arg *arg) ++{ ++ int err; ++ loff_t offset; ++ struct au_rdu_cookie *cookie = &arg->rdu->cookie; ++ ++ /* we don't have to care (FMODE_32BITHASH | FMODE_64BITHASH) for ext4 */ ++ offset = vfsub_llseek(h_file, cookie->h_pos, SEEK_SET); ++ err = offset; ++ if (unlikely(offset != cookie->h_pos)) ++ goto out; ++ ++ err = 0; ++ do { ++ arg->err = 0; ++ au_fclr_rdu(cookie->flags, CALLED); ++ /* smp_mb(); */ ++ err = vfsub_iterate_dir(h_file, &arg->ctx); ++ if (err >= 0) ++ err = arg->err; ++ } while (!err ++ && au_ftest_rdu(cookie->flags, CALLED) ++ && !au_ftest_rdu(cookie->flags, FULL)); ++ cookie->h_pos = h_file->f_pos; ++ ++out: ++ AuTraceErr(err); ++ return err; ++} ++ ++static int au_rdu(struct file *file, struct aufs_rdu *rdu) ++{ ++ int err; ++ aufs_bindex_t bbot; ++ struct au_rdu_arg arg = { ++ .ctx = { ++ .actor = au_rdu_fill ++ } ++ }; ++ struct dentry *dentry; ++ struct inode *inode; ++ struct file *h_file; ++ struct au_rdu_cookie *cookie = &rdu->cookie; ++ ++ /* VERIFY_WRITE */ ++ err = !access_ok(rdu->ent.e, rdu->sz); ++ if (unlikely(err)) { ++ err = -EFAULT; ++ AuTraceErr(err); ++ goto out; ++ } ++ rdu->rent = 0; ++ rdu->tail = rdu->ent; ++ rdu->full = 0; ++ arg.rdu = rdu; ++ arg.ent = rdu->ent; ++ arg.end = arg.ent.ul; ++ arg.end += rdu->sz; ++ ++ err = -ENOTDIR; ++ if (unlikely(!file->f_op->iterate && !file->f_op->iterate_shared)) ++ goto out; ++ ++ err = security_file_permission(file, MAY_READ); ++ AuTraceErr(err); ++ if (unlikely(err)) ++ goto out; ++ ++ dentry = file->f_path.dentry; ++ inode = d_inode(dentry); ++ inode_lock_shared(inode); ++ ++ arg.sb = inode->i_sb; ++ err = si_read_lock(arg.sb, AuLock_FLUSH | AuLock_NOPLM); ++ if (unlikely(err)) ++ goto out_mtx; ++ err = au_alive_dir(dentry); ++ if (unlikely(err)) ++ goto out_si; ++ /* todo: reval? */ ++ fi_read_lock(file); ++ ++ err = -EAGAIN; ++ if (unlikely(au_ftest_rdu(cookie->flags, CONT) ++ && cookie->generation != au_figen(file))) ++ goto out_unlock; ++ ++ err = 0; ++ if (!rdu->blk) { ++ rdu->blk = au_sbi(arg.sb)->si_rdblk; ++ if (!rdu->blk) ++ rdu->blk = au_dir_size(file, /*dentry*/NULL); ++ } ++ bbot = au_fbtop(file); ++ if (cookie->bindex < bbot) ++ cookie->bindex = bbot; ++ bbot = au_fbbot_dir(file); ++ /* AuDbg("b%d, b%d\n", cookie->bindex, bbot); */ ++ for (; !err && cookie->bindex <= bbot; ++ cookie->bindex++, cookie->h_pos = 0) { ++ h_file = au_hf_dir(file, cookie->bindex); ++ if (!h_file) ++ continue; ++ ++ au_fclr_rdu(cookie->flags, FULL); ++ err = au_rdu_do(h_file, &arg); ++ AuTraceErr(err); ++ if (unlikely(au_ftest_rdu(cookie->flags, FULL) || err)) ++ break; ++ } ++ AuDbg("rent %llu\n", rdu->rent); ++ ++ if (!err && !au_ftest_rdu(cookie->flags, CONT)) { ++ rdu->shwh = !!au_opt_test(au_sbi(arg.sb)->si_mntflags, SHWH); ++ au_fset_rdu(cookie->flags, CONT); ++ cookie->generation = au_figen(file); ++ } ++ ++ ii_read_lock_child(inode); ++ fsstack_copy_attr_atime(inode, au_h_iptr(inode, au_ibtop(inode))); ++ ii_read_unlock(inode); ++ ++out_unlock: ++ fi_read_unlock(file); ++out_si: ++ si_read_unlock(arg.sb); ++out_mtx: ++ inode_unlock_shared(inode); ++out: ++ AuTraceErr(err); ++ return err; ++} ++ ++static int au_rdu_ino(struct file *file, struct aufs_rdu *rdu) ++{ ++ int err; ++ ino_t ino; ++ unsigned long long nent; ++ union au_rdu_ent_ul *u; ++ struct au_rdu_ent ent; ++ struct super_block *sb; ++ ++ err = 0; ++ nent = rdu->nent; ++ u = &rdu->ent; ++ sb = file->f_path.dentry->d_sb; ++ si_read_lock(sb, AuLock_FLUSH); ++ while (nent-- > 0) { ++ /* unnecessary to support mmap_sem since this is a dir */ ++ err = copy_from_user(&ent, u->e, sizeof(ent)); ++ if (!err) ++ /* VERIFY_WRITE */ ++ err = !access_ok(&u->e->ino, sizeof(ino)); ++ if (unlikely(err)) { ++ err = -EFAULT; ++ AuTraceErr(err); ++ break; ++ } ++ ++ /* AuDbg("b%d, i%llu\n", ent.bindex, ent.ino); */ ++ if (!ent.wh) ++ err = au_ino(sb, ent.bindex, ent.ino, ent.type, &ino); ++ else ++ err = au_wh_ino(sb, ent.bindex, ent.ino, ent.type, ++ &ino); ++ if (unlikely(err)) { ++ AuTraceErr(err); ++ break; ++ } ++ ++ err = __put_user(ino, &u->e->ino); ++ if (unlikely(err)) { ++ err = -EFAULT; ++ AuTraceErr(err); ++ break; ++ } ++ u->ul += au_rdu_len(ent.nlen); ++ } ++ si_read_unlock(sb); ++ ++ return err; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++static int au_rdu_verify(struct aufs_rdu *rdu) ++{ ++ AuDbg("rdu{%llu, %p, %u | %u | %llu, %u, %u | " ++ "%llu, b%d, 0x%x, g%u}\n", ++ rdu->sz, rdu->ent.e, rdu->verify[AufsCtlRduV_SZ], ++ rdu->blk, ++ rdu->rent, rdu->shwh, rdu->full, ++ rdu->cookie.h_pos, rdu->cookie.bindex, rdu->cookie.flags, ++ rdu->cookie.generation); ++ ++ if (rdu->verify[AufsCtlRduV_SZ] == sizeof(*rdu)) ++ return 0; ++ ++ AuDbg("%u:%u\n", ++ rdu->verify[AufsCtlRduV_SZ], (unsigned int)sizeof(*rdu)); ++ return -EINVAL; ++} ++ ++long au_rdu_ioctl(struct file *file, unsigned int cmd, unsigned long arg) ++{ ++ long err, e; ++ struct aufs_rdu rdu; ++ void __user *p = (void __user *)arg; ++ ++ err = copy_from_user(&rdu, p, sizeof(rdu)); ++ if (unlikely(err)) { ++ err = -EFAULT; ++ AuTraceErr(err); ++ goto out; ++ } ++ err = au_rdu_verify(&rdu); ++ if (unlikely(err)) ++ goto out; ++ ++ switch (cmd) { ++ case AUFS_CTL_RDU: ++ err = au_rdu(file, &rdu); ++ if (unlikely(err)) ++ break; ++ ++ e = copy_to_user(p, &rdu, sizeof(rdu)); ++ if (unlikely(e)) { ++ err = -EFAULT; ++ AuTraceErr(err); ++ } ++ break; ++ case AUFS_CTL_RDU_INO: ++ err = au_rdu_ino(file, &rdu); ++ break; ++ ++ default: ++ /* err = -ENOTTY; */ ++ err = -EINVAL; ++ } ++ ++out: ++ AuTraceErr(err); ++ return err; ++} ++ ++#ifdef CONFIG_COMPAT ++long au_rdu_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg) ++{ ++ long err, e; ++ struct aufs_rdu rdu; ++ void __user *p = compat_ptr(arg); ++ ++ /* todo: get_user()? */ ++ err = copy_from_user(&rdu, p, sizeof(rdu)); ++ if (unlikely(err)) { ++ err = -EFAULT; ++ AuTraceErr(err); ++ goto out; ++ } ++ rdu.ent.e = compat_ptr(rdu.ent.ul); ++ err = au_rdu_verify(&rdu); ++ if (unlikely(err)) ++ goto out; ++ ++ switch (cmd) { ++ case AUFS_CTL_RDU: ++ err = au_rdu(file, &rdu); ++ if (unlikely(err)) ++ break; ++ ++ rdu.ent.ul = ptr_to_compat(rdu.ent.e); ++ rdu.tail.ul = ptr_to_compat(rdu.tail.e); ++ e = copy_to_user(p, &rdu, sizeof(rdu)); ++ if (unlikely(e)) { ++ err = -EFAULT; ++ AuTraceErr(err); ++ } ++ break; ++ case AUFS_CTL_RDU_INO: ++ err = au_rdu_ino(file, &rdu); ++ break; ++ ++ default: ++ /* err = -ENOTTY; */ ++ err = -EINVAL; ++ } ++ ++out: ++ AuTraceErr(err); ++ return err; ++} ++#endif +diff -Naur linux-5.15/fs/aufs/rwsem.h aufs5-linux-aufs5.15/fs/aufs/rwsem.h +--- linux-5.15/fs/aufs/rwsem.h 1970-01-01 03:00:00.000000000 +0300 ++++ aufs5-linux-aufs5.15/fs/aufs/rwsem.h 2022-03-07 13:48:09.000000000 +0300 +@@ -0,0 +1,72 @@ ++/* SPDX-License-Identifier: GPL-2.0 */ ++/* ++ * Copyright (C) 2005-2021 Junjiro R. Okajima ++ */ ++ ++/* ++ * simple read-write semaphore wrappers ++ */ ++ ++#ifndef __AUFS_RWSEM_H__ ++#define __AUFS_RWSEM_H__ ++ ++#ifdef __KERNEL__ ++ ++#include "debug.h" ++ ++/* in the future, the name 'au_rwsem' will be totally gone */ ++#define au_rwsem rw_semaphore ++ ++/* to debug easier, do not make them inlined functions */ ++#define AuRwMustNoWaiters(rw) AuDebugOn(rwsem_is_contended(rw)) ++ ++#ifdef CONFIG_LOCKDEP ++/* rwsem_is_locked() is unusable */ ++#define AuRwMustReadLock(rw) AuDebugOn(IS_ENABLED(CONFIG_LOCKDEP) \ ++ && !lockdep_recursing(current) \ ++ && debug_locks \ ++ && !lockdep_is_held_type(rw, 1)) ++#define AuRwMustWriteLock(rw) AuDebugOn(IS_ENABLED(CONFIG_LOCKDEP) \ ++ && !lockdep_recursing(current) \ ++ && debug_locks \ ++ && !lockdep_is_held_type(rw, 0)) ++#define AuRwMustAnyLock(rw) AuDebugOn(IS_ENABLED(CONFIG_LOCKDEP) \ ++ && !lockdep_recursing(current) \ ++ && debug_locks \ ++ && !lockdep_is_held(rw)) ++#define AuRwDestroy(rw) AuDebugOn(IS_ENABLED(CONFIG_LOCKDEP) \ ++ && !lockdep_recursing(current) \ ++ && debug_locks \ ++ && lockdep_is_held(rw)) ++#else ++#define AuRwMustReadLock(rw) do {} while (0) ++#define AuRwMustWriteLock(rw) do {} while (0) ++#define AuRwMustAnyLock(rw) do {} while (0) ++#define AuRwDestroy(rw) do {} while (0) ++#endif ++ ++#define au_rw_init(rw) init_rwsem(rw) ++ ++#define au_rw_init_wlock(rw) do { \ ++ au_rw_init(rw); \ ++ down_write(rw); \ ++ } while (0) ++ ++#define au_rw_init_wlock_nested(rw, lsc) do { \ ++ au_rw_init(rw); \ ++ down_write_nested(rw, lsc); \ ++ } while (0) ++ ++#define au_rw_read_lock(rw) down_read(rw) ++#define au_rw_read_lock_nested(rw, lsc) down_read_nested(rw, lsc) ++#define au_rw_read_unlock(rw) up_read(rw) ++#define au_rw_dgrade_lock(rw) downgrade_write(rw) ++#define au_rw_write_lock(rw) down_write(rw) ++#define au_rw_write_lock_nested(rw, lsc) down_write_nested(rw, lsc) ++#define au_rw_write_unlock(rw) up_write(rw) ++/* why is not _nested version defined? */ ++#define au_rw_read_trylock(rw) down_read_trylock(rw) ++#define au_rw_write_trylock(rw) down_write_trylock(rw) ++ ++#endif /* __KERNEL__ */ ++#endif /* __AUFS_RWSEM_H__ */ +diff -Naur linux-5.15/fs/aufs/sbinfo.c aufs5-linux-aufs5.15/fs/aufs/sbinfo.c +--- linux-5.15/fs/aufs/sbinfo.c 1970-01-01 03:00:00.000000000 +0300 ++++ aufs5-linux-aufs5.15/fs/aufs/sbinfo.c 2022-03-07 13:48:09.000000000 +0300 +@@ -0,0 +1,303 @@ ++// SPDX-License-Identifier: GPL-2.0 ++/* ++ * Copyright (C) 2005-2021 Junjiro R. Okajima ++ */ ++ ++/* ++ * superblock private data ++ */ ++ ++#include ++#include "aufs.h" ++ ++/* ++ * they are necessary regardless sysfs is disabled. ++ */ ++void au_si_free(struct kobject *kobj) ++{ ++ int i; ++ struct au_sbinfo *sbinfo; ++ char *locked __maybe_unused; /* debug only */ ++ ++ sbinfo = container_of(kobj, struct au_sbinfo, si_kobj); ++ for (i = 0; i < AuPlink_NHASH; i++) ++ AuDebugOn(!hlist_bl_empty(sbinfo->si_plink + i)); ++ AuDebugOn(atomic_read(&sbinfo->si_nowait.nw_len)); ++ ++ AuLCntZero(au_lcnt_read(&sbinfo->si_ninodes, /*do_rev*/0)); ++ au_lcnt_fin(&sbinfo->si_ninodes, /*do_sync*/0); ++ AuLCntZero(au_lcnt_read(&sbinfo->si_nfiles, /*do_rev*/0)); ++ au_lcnt_fin(&sbinfo->si_nfiles, /*do_sync*/0); ++ ++ dbgaufs_si_fin(sbinfo); ++ au_rw_write_lock(&sbinfo->si_rwsem); ++ au_br_free(sbinfo); ++ au_rw_write_unlock(&sbinfo->si_rwsem); ++ ++ au_kfree_try_rcu(sbinfo->si_branch); ++ mutex_destroy(&sbinfo->si_xib_mtx); ++ AuRwDestroy(&sbinfo->si_rwsem); ++ ++ au_lcnt_wait_for_fin(&sbinfo->si_ninodes); ++ /* si_nfiles is waited too */ ++ au_kfree_rcu(sbinfo); ++} ++ ++struct au_sbinfo *au_si_alloc(struct super_block *sb) ++{ ++ struct au_sbinfo *sbinfo; ++ int err, i; ++ ++ err = -ENOMEM; ++ sbinfo = kzalloc(sizeof(*sbinfo), GFP_NOFS); ++ if (unlikely(!sbinfo)) ++ goto out; ++ ++ /* will be reallocated separately */ ++ sbinfo->si_branch = kzalloc(sizeof(*sbinfo->si_branch), GFP_NOFS); ++ if (unlikely(!sbinfo->si_branch)) ++ goto out_sbinfo; ++ ++ err = sysaufs_si_init(sbinfo); ++ if (!err) { ++ dbgaufs_si_null(sbinfo); ++ err = dbgaufs_si_init(sbinfo); ++ if (unlikely(err)) ++ kobject_put(&sbinfo->si_kobj); ++ } ++ if (unlikely(err)) ++ goto out_br; ++ ++ au_nwt_init(&sbinfo->si_nowait); ++ au_rw_init_wlock(&sbinfo->si_rwsem); ++ ++ au_lcnt_init(&sbinfo->si_ninodes, /*release*/NULL); ++ au_lcnt_init(&sbinfo->si_nfiles, /*release*/NULL); ++ ++ sbinfo->si_bbot = -1; ++ sbinfo->si_last_br_id = AUFS_BRANCH_MAX / 2; ++ ++ sbinfo->si_wbr_copyup = AuWbrCopyup_Def; ++ sbinfo->si_wbr_create = AuWbrCreate_Def; ++ sbinfo->si_wbr_copyup_ops = au_wbr_copyup_ops + sbinfo->si_wbr_copyup; ++ sbinfo->si_wbr_create_ops = au_wbr_create_ops + sbinfo->si_wbr_create; ++ ++ au_fhsm_init(sbinfo); ++ ++ sbinfo->si_mntflags = au_opts_plink(AuOpt_Def); ++ ++ sbinfo->si_xino_jiffy = jiffies; ++ sbinfo->si_xino_expire ++ = msecs_to_jiffies(AUFS_XINO_DEF_SEC * MSEC_PER_SEC); ++ mutex_init(&sbinfo->si_xib_mtx); ++ /* leave si_xib_last_pindex and si_xib_next_bit */ ++ ++ INIT_HLIST_BL_HEAD(&sbinfo->si_aopen); ++ ++ sbinfo->si_rdcache = msecs_to_jiffies(AUFS_RDCACHE_DEF * MSEC_PER_SEC); ++ sbinfo->si_rdblk = AUFS_RDBLK_DEF; ++ sbinfo->si_rdhash = AUFS_RDHASH_DEF; ++ sbinfo->si_dirwh = AUFS_DIRWH_DEF; ++ ++ for (i = 0; i < AuPlink_NHASH; i++) ++ INIT_HLIST_BL_HEAD(sbinfo->si_plink + i); ++ init_waitqueue_head(&sbinfo->si_plink_wq); ++ spin_lock_init(&sbinfo->si_plink_maint_lock); ++ ++ INIT_HLIST_BL_HEAD(&sbinfo->si_files); ++ ++ /* with getattr by default */ ++ sbinfo->si_iop_array = aufs_iop; ++ ++ /* leave other members for sysaufs and si_mnt. */ ++ sbinfo->si_sb = sb; ++ if (sb) { ++ sb->s_fs_info = sbinfo; ++ si_pid_set(sb); ++ } ++ return sbinfo; /* success */ ++ ++out_br: ++ au_kfree_try_rcu(sbinfo->si_branch); ++out_sbinfo: ++ au_kfree_rcu(sbinfo); ++out: ++ return ERR_PTR(err); ++} ++ ++int au_sbr_realloc(struct au_sbinfo *sbinfo, int nbr, int may_shrink) ++{ ++ int err, sz; ++ struct au_branch **brp; ++ ++ AuRwMustWriteLock(&sbinfo->si_rwsem); ++ ++ err = -ENOMEM; ++ sz = sizeof(*brp) * (sbinfo->si_bbot + 1); ++ if (unlikely(!sz)) ++ sz = sizeof(*brp); ++ brp = au_kzrealloc(sbinfo->si_branch, sz, sizeof(*brp) * nbr, GFP_NOFS, ++ may_shrink); ++ if (brp) { ++ sbinfo->si_branch = brp; ++ err = 0; ++ } ++ ++ return err; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++unsigned int au_sigen_inc(struct super_block *sb) ++{ ++ unsigned int gen; ++ struct inode *inode; ++ ++ SiMustWriteLock(sb); ++ ++ gen = ++au_sbi(sb)->si_generation; ++ au_update_digen(sb->s_root); ++ inode = d_inode(sb->s_root); ++ au_update_iigen(inode, /*half*/0); ++ inode_inc_iversion(inode); ++ return gen; ++} ++ ++aufs_bindex_t au_new_br_id(struct super_block *sb) ++{ ++ aufs_bindex_t br_id; ++ int i; ++ struct au_sbinfo *sbinfo; ++ ++ SiMustWriteLock(sb); ++ ++ sbinfo = au_sbi(sb); ++ for (i = 0; i <= AUFS_BRANCH_MAX; i++) { ++ br_id = ++sbinfo->si_last_br_id; ++ AuDebugOn(br_id < 0); ++ if (br_id && au_br_index(sb, br_id) < 0) ++ return br_id; ++ } ++ ++ return -1; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++/* it is ok that new 'nwt' tasks are appended while we are sleeping */ ++int si_read_lock(struct super_block *sb, int flags) ++{ ++ int err; ++ ++ err = 0; ++ if (au_ftest_lock(flags, FLUSH)) ++ au_nwt_flush(&au_sbi(sb)->si_nowait); ++ ++ si_noflush_read_lock(sb); ++ err = au_plink_maint(sb, flags); ++ if (unlikely(err)) ++ si_read_unlock(sb); ++ ++ return err; ++} ++ ++int si_write_lock(struct super_block *sb, int flags) ++{ ++ int err; ++ ++ if (au_ftest_lock(flags, FLUSH)) ++ au_nwt_flush(&au_sbi(sb)->si_nowait); ++ ++ si_noflush_write_lock(sb); ++ err = au_plink_maint(sb, flags); ++ if (unlikely(err)) ++ si_write_unlock(sb); ++ ++ return err; ++} ++ ++/* dentry and super_block lock. call at entry point */ ++int aufs_read_lock(struct dentry *dentry, int flags) ++{ ++ int err; ++ struct super_block *sb; ++ ++ sb = dentry->d_sb; ++ err = si_read_lock(sb, flags); ++ if (unlikely(err)) ++ goto out; ++ ++ if (au_ftest_lock(flags, DW)) ++ di_write_lock_child(dentry); ++ else ++ di_read_lock_child(dentry, flags); ++ ++ if (au_ftest_lock(flags, GEN)) { ++ err = au_digen_test(dentry, au_sigen(sb)); ++ if (!au_opt_test(au_mntflags(sb), UDBA_NONE)) ++ AuDebugOn(!err && au_dbrange_test(dentry)); ++ else if (!err) ++ err = au_dbrange_test(dentry); ++ if (unlikely(err)) ++ aufs_read_unlock(dentry, flags); ++ } ++ ++out: ++ return err; ++} ++ ++void aufs_read_unlock(struct dentry *dentry, int flags) ++{ ++ if (au_ftest_lock(flags, DW)) ++ di_write_unlock(dentry); ++ else ++ di_read_unlock(dentry, flags); ++ si_read_unlock(dentry->d_sb); ++} ++ ++void aufs_write_lock(struct dentry *dentry) ++{ ++ si_write_lock(dentry->d_sb, AuLock_FLUSH | AuLock_NOPLMW); ++ di_write_lock_child(dentry); ++} ++ ++void aufs_write_unlock(struct dentry *dentry) ++{ ++ di_write_unlock(dentry); ++ si_write_unlock(dentry->d_sb); ++} ++ ++int aufs_read_and_write_lock2(struct dentry *d1, struct dentry *d2, int flags) ++{ ++ int err; ++ unsigned int sigen; ++ struct super_block *sb; ++ ++ sb = d1->d_sb; ++ err = si_read_lock(sb, flags); ++ if (unlikely(err)) ++ goto out; ++ ++ di_write_lock2_child(d1, d2, au_ftest_lock(flags, DIRS)); ++ ++ if (au_ftest_lock(flags, GEN)) { ++ sigen = au_sigen(sb); ++ err = au_digen_test(d1, sigen); ++ AuDebugOn(!err && au_dbrange_test(d1)); ++ if (!err) { ++ err = au_digen_test(d2, sigen); ++ AuDebugOn(!err && au_dbrange_test(d2)); ++ } ++ if (unlikely(err)) ++ aufs_read_and_write_unlock2(d1, d2); ++ } ++ ++out: ++ return err; ++} ++ ++void aufs_read_and_write_unlock2(struct dentry *d1, struct dentry *d2) ++{ ++ di_write_unlock2(d1, d2); ++ si_read_unlock(d1->d_sb); ++} +diff -Naur linux-5.15/fs/aufs/super.c aufs5-linux-aufs5.15/fs/aufs/super.c +--- linux-5.15/fs/aufs/super.c 1970-01-01 03:00:00.000000000 +0300 ++++ aufs5-linux-aufs5.15/fs/aufs/super.c 2022-03-07 13:48:09.000000000 +0300 +@@ -0,0 +1,858 @@ ++// SPDX-License-Identifier: GPL-2.0 ++/* ++ * Copyright (C) 2005-2021 Junjiro R. Okajima ++ */ ++ ++/* ++ * mount and super_block operations ++ */ ++ ++#include ++#include ++#include ++#include ++#include ++#include "aufs.h" ++ ++/* ++ * super_operations ++ */ ++static struct inode *aufs_alloc_inode(struct super_block *sb __maybe_unused) ++{ ++ struct au_icntnr *c; ++ ++ c = au_cache_alloc_icntnr(); ++ if (c) { ++ au_icntnr_init(c); ++ inode_set_iversion(&c->vfs_inode, 1); /* sigen(sb); */ ++ c->iinfo.ii_hinode = NULL; ++ return &c->vfs_inode; ++ } ++ return NULL; ++} ++ ++static void aufs_destroy_inode(struct inode *inode) ++{ ++ if (!au_is_bad_inode(inode)) ++ au_iinfo_fin(inode); ++} ++ ++static void aufs_free_inode(struct inode *inode) ++{ ++ au_cache_free_icntnr(container_of(inode, struct au_icntnr, vfs_inode)); ++} ++ ++struct inode *au_iget_locked(struct super_block *sb, ino_t ino) ++{ ++ struct inode *inode; ++ int err; ++ ++ inode = iget_locked(sb, ino); ++ if (unlikely(!inode)) { ++ inode = ERR_PTR(-ENOMEM); ++ goto out; ++ } ++ if (!(inode->i_state & I_NEW)) ++ goto out; ++ ++ err = au_xigen_new(inode); ++ if (!err) ++ err = au_iinfo_init(inode); ++ if (!err) ++ inode_inc_iversion(inode); ++ else { ++ iget_failed(inode); ++ inode = ERR_PTR(err); ++ } ++ ++out: ++ /* never return NULL */ ++ AuDebugOn(!inode); ++ AuTraceErrPtr(inode); ++ return inode; ++} ++ ++/* lock free root dinfo */ ++static int au_show_brs(struct seq_file *seq, struct super_block *sb) ++{ ++ int err; ++ aufs_bindex_t bindex, bbot; ++ struct path path; ++ struct au_hdentry *hdp; ++ struct au_branch *br; ++ au_br_perm_str_t perm; ++ ++ err = 0; ++ bbot = au_sbbot(sb); ++ bindex = 0; ++ hdp = au_hdentry(au_di(sb->s_root), bindex); ++ for (; !err && bindex <= bbot; bindex++, hdp++) { ++ br = au_sbr(sb, bindex); ++ path.mnt = au_br_mnt(br); ++ path.dentry = hdp->hd_dentry; ++ err = au_seq_path(seq, &path); ++ if (!err) { ++ au_optstr_br_perm(&perm, br->br_perm); ++ seq_printf(seq, "=%s", perm.a); ++ if (bindex != bbot) ++ seq_putc(seq, ':'); ++ } ++ } ++ if (unlikely(err || seq_has_overflowed(seq))) ++ err = -E2BIG; ++ ++ return err; ++} ++ ++static void au_gen_fmt(char *fmt, int len __maybe_unused, const char *pat, ++ const char *append) ++{ ++ char *p; ++ ++ p = fmt; ++ while (*pat != ':') ++ *p++ = *pat++; ++ *p++ = *pat++; ++ strcpy(p, append); ++ AuDebugOn(strlen(fmt) >= len); ++} ++ ++static void au_show_wbr_create(struct seq_file *m, int v, ++ struct au_sbinfo *sbinfo) ++{ ++ const char *pat; ++ char fmt[32]; ++ struct au_wbr_mfs *mfs; ++ ++ AuRwMustAnyLock(&sbinfo->si_rwsem); ++ ++ seq_puts(m, ",create="); ++ pat = au_optstr_wbr_create(v); ++ mfs = &sbinfo->si_wbr_mfs; ++ switch (v) { ++ case AuWbrCreate_TDP: ++ case AuWbrCreate_RR: ++ case AuWbrCreate_MFS: ++ case AuWbrCreate_PMFS: ++ seq_puts(m, pat); ++ break; ++ case AuWbrCreate_MFSRR: ++ case AuWbrCreate_TDMFS: ++ case AuWbrCreate_PMFSRR: ++ au_gen_fmt(fmt, sizeof(fmt), pat, "%llu"); ++ seq_printf(m, fmt, mfs->mfsrr_watermark); ++ break; ++ case AuWbrCreate_MFSV: ++ case AuWbrCreate_PMFSV: ++ au_gen_fmt(fmt, sizeof(fmt), pat, "%lu"); ++ seq_printf(m, fmt, ++ jiffies_to_msecs(mfs->mfs_expire) ++ / MSEC_PER_SEC); ++ break; ++ case AuWbrCreate_MFSRRV: ++ case AuWbrCreate_TDMFSV: ++ case AuWbrCreate_PMFSRRV: ++ au_gen_fmt(fmt, sizeof(fmt), pat, "%llu:%lu"); ++ seq_printf(m, fmt, mfs->mfsrr_watermark, ++ jiffies_to_msecs(mfs->mfs_expire) / MSEC_PER_SEC); ++ break; ++ default: ++ BUG(); ++ } ++} ++ ++static int au_show_xino(struct seq_file *seq, struct super_block *sb) ++{ ++#ifdef CONFIG_SYSFS ++ return 0; ++#else ++ int err; ++ const int len = sizeof(AUFS_XINO_FNAME) - 1; ++ aufs_bindex_t bindex, brid; ++ struct qstr *name; ++ struct file *f; ++ struct dentry *d, *h_root; ++ struct au_branch *br; ++ ++ AuRwMustAnyLock(&sbinfo->si_rwsem); ++ ++ err = 0; ++ f = au_sbi(sb)->si_xib; ++ if (!f) ++ goto out; ++ ++ /* stop printing the default xino path on the first writable branch */ ++ h_root = NULL; ++ bindex = au_xi_root(sb, f->f_path.dentry); ++ if (bindex >= 0) { ++ br = au_sbr_sb(sb, bindex); ++ h_root = au_br_dentry(br); ++ } ++ ++ d = f->f_path.dentry; ++ name = &d->d_name; ++ /* safe ->d_parent because the file is unlinked */ ++ if (d->d_parent == h_root ++ && name->len == len ++ && !memcmp(name->name, AUFS_XINO_FNAME, len)) ++ goto out; ++ ++ seq_puts(seq, ",xino="); ++ err = au_xino_path(seq, f); ++ ++out: ++ return err; ++#endif ++} ++ ++/* seq_file will re-call me in case of too long string */ ++static int aufs_show_options(struct seq_file *m, struct dentry *dentry) ++{ ++ int err; ++ unsigned int mnt_flags, v; ++ struct super_block *sb; ++ struct au_sbinfo *sbinfo; ++ ++#define AuBool(name, str) do { \ ++ v = au_opt_test(mnt_flags, name); \ ++ if (v != au_opt_test(AuOpt_Def, name)) \ ++ seq_printf(m, ",%s" #str, v ? "" : "no"); \ ++} while (0) ++ ++#define AuStr(name, str) do { \ ++ v = mnt_flags & AuOptMask_##name; \ ++ if (v != (AuOpt_Def & AuOptMask_##name)) \ ++ seq_printf(m, "," #str "=%s", au_optstr_##str(v)); \ ++} while (0) ++ ++#define AuUInt(name, str, val) do { \ ++ if (val != AUFS_##name##_DEF) \ ++ seq_printf(m, "," #str "=%u", val); \ ++} while (0) ++ ++ sb = dentry->d_sb; ++ if (sb->s_flags & SB_POSIXACL) ++ seq_puts(m, ",acl"); ++#if 0 /* reserved for future use */ ++ if (sb->s_flags & SB_I_VERSION) ++ seq_puts(m, ",i_version"); ++#endif ++ ++ /* lock free root dinfo */ ++ si_noflush_read_lock(sb); ++ sbinfo = au_sbi(sb); ++ seq_printf(m, ",si=%lx", sysaufs_si_id(sbinfo)); ++ ++ mnt_flags = au_mntflags(sb); ++ if (au_opt_test(mnt_flags, XINO)) { ++ err = au_show_xino(m, sb); ++ if (unlikely(err)) ++ goto out; ++ } else ++ seq_puts(m, ",noxino"); ++ ++ AuBool(TRUNC_XINO, trunc_xino); ++ AuStr(UDBA, udba); ++ AuBool(SHWH, shwh); ++ AuBool(PLINK, plink); ++ AuBool(DIO, dio); ++ AuBool(DIRPERM1, dirperm1); ++ ++ v = sbinfo->si_wbr_create; ++ if (v != AuWbrCreate_Def) ++ au_show_wbr_create(m, v, sbinfo); ++ ++ v = sbinfo->si_wbr_copyup; ++ if (v != AuWbrCopyup_Def) ++ seq_printf(m, ",cpup=%s", au_optstr_wbr_copyup(v)); ++ ++ v = au_opt_test(mnt_flags, ALWAYS_DIROPQ); ++ if (v != au_opt_test(AuOpt_Def, ALWAYS_DIROPQ)) ++ seq_printf(m, ",diropq=%c", v ? 'a' : 'w'); ++ ++ AuUInt(DIRWH, dirwh, sbinfo->si_dirwh); ++ ++ v = jiffies_to_msecs(sbinfo->si_rdcache) / MSEC_PER_SEC; ++ AuUInt(RDCACHE, rdcache, v); ++ ++ AuUInt(RDBLK, rdblk, sbinfo->si_rdblk); ++ AuUInt(RDHASH, rdhash, sbinfo->si_rdhash); ++ ++ au_fhsm_show(m, sbinfo); ++ ++ AuBool(DIRREN, dirren); ++ AuBool(SUM, sum); ++ /* AuBool(SUM_W, wsum); */ ++ AuBool(WARN_PERM, warn_perm); ++ AuBool(VERBOSE, verbose); ++ ++out: ++ /* be sure to print "br:" last */ ++ if (!sysaufs_brs) { ++ seq_puts(m, ",br:"); ++ au_show_brs(m, sb); ++ } ++ si_read_unlock(sb); ++ return 0; ++ ++#undef AuBool ++#undef AuStr ++#undef AuUInt ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++/* sum mode which returns the summation for statfs(2) */ ++ ++static u64 au_add_till_max(u64 a, u64 b) ++{ ++ u64 old; ++ ++ old = a; ++ a += b; ++ if (old <= a) ++ return a; ++ return ULLONG_MAX; ++} ++ ++static u64 au_mul_till_max(u64 a, long mul) ++{ ++ u64 old; ++ ++ old = a; ++ a *= mul; ++ if (old <= a) ++ return a; ++ return ULLONG_MAX; ++} ++ ++static int au_statfs_sum(struct super_block *sb, struct kstatfs *buf) ++{ ++ int err; ++ long bsize, factor; ++ u64 blocks, bfree, bavail, files, ffree; ++ aufs_bindex_t bbot, bindex, i; ++ unsigned char shared; ++ struct path h_path; ++ struct super_block *h_sb; ++ ++ err = 0; ++ bsize = LONG_MAX; ++ files = 0; ++ ffree = 0; ++ blocks = 0; ++ bfree = 0; ++ bavail = 0; ++ bbot = au_sbbot(sb); ++ for (bindex = 0; bindex <= bbot; bindex++) { ++ h_path.mnt = au_sbr_mnt(sb, bindex); ++ h_sb = h_path.mnt->mnt_sb; ++ shared = 0; ++ for (i = 0; !shared && i < bindex; i++) ++ shared = (au_sbr_sb(sb, i) == h_sb); ++ if (shared) ++ continue; ++ ++ /* sb->s_root for NFS is unreliable */ ++ h_path.dentry = h_path.mnt->mnt_root; ++ err = vfs_statfs(&h_path, buf); ++ if (unlikely(err)) ++ goto out; ++ ++ if (bsize > buf->f_bsize) { ++ /* ++ * we will reduce bsize, so we have to expand blocks ++ * etc. to match them again ++ */ ++ factor = (bsize / buf->f_bsize); ++ blocks = au_mul_till_max(blocks, factor); ++ bfree = au_mul_till_max(bfree, factor); ++ bavail = au_mul_till_max(bavail, factor); ++ bsize = buf->f_bsize; ++ } ++ ++ factor = (buf->f_bsize / bsize); ++ blocks = au_add_till_max(blocks, ++ au_mul_till_max(buf->f_blocks, factor)); ++ bfree = au_add_till_max(bfree, ++ au_mul_till_max(buf->f_bfree, factor)); ++ bavail = au_add_till_max(bavail, ++ au_mul_till_max(buf->f_bavail, factor)); ++ files = au_add_till_max(files, buf->f_files); ++ ffree = au_add_till_max(ffree, buf->f_ffree); ++ } ++ ++ buf->f_bsize = bsize; ++ buf->f_blocks = blocks; ++ buf->f_bfree = bfree; ++ buf->f_bavail = bavail; ++ buf->f_files = files; ++ buf->f_ffree = ffree; ++ buf->f_frsize = 0; ++ ++out: ++ return err; ++} ++ ++static int aufs_statfs(struct dentry *dentry, struct kstatfs *buf) ++{ ++ int err; ++ struct path h_path; ++ struct super_block *sb; ++ ++ /* lock free root dinfo */ ++ sb = dentry->d_sb; ++ si_noflush_read_lock(sb); ++ if (!au_opt_test(au_mntflags(sb), SUM)) { ++ /* sb->s_root for NFS is unreliable */ ++ h_path.mnt = au_sbr_mnt(sb, 0); ++ h_path.dentry = h_path.mnt->mnt_root; ++ err = vfs_statfs(&h_path, buf); ++ } else ++ err = au_statfs_sum(sb, buf); ++ si_read_unlock(sb); ++ ++ if (!err) { ++ buf->f_type = AUFS_SUPER_MAGIC; ++ buf->f_namelen = AUFS_MAX_NAMELEN; ++ memset(&buf->f_fsid, 0, sizeof(buf->f_fsid)); ++ } ++ /* buf->f_bsize = buf->f_blocks = buf->f_bfree = buf->f_bavail = -1; */ ++ ++ return err; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++static int aufs_sync_fs(struct super_block *sb, int wait) ++{ ++ int err, e; ++ aufs_bindex_t bbot, bindex; ++ struct au_branch *br; ++ struct super_block *h_sb; ++ ++ err = 0; ++ si_noflush_read_lock(sb); ++ bbot = au_sbbot(sb); ++ for (bindex = 0; bindex <= bbot; bindex++) { ++ br = au_sbr(sb, bindex); ++ if (!au_br_writable(br->br_perm)) ++ continue; ++ ++ h_sb = au_sbr_sb(sb, bindex); ++ e = vfsub_sync_filesystem(h_sb, wait); ++ if (unlikely(e && !err)) ++ err = e; ++ /* go on even if an error happens */ ++ } ++ si_read_unlock(sb); ++ ++ return err; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++/* final actions when unmounting a file system */ ++static void aufs_put_super(struct super_block *sb) ++{ ++ struct au_sbinfo *sbinfo; ++ ++ sbinfo = au_sbi(sb); ++ if (sbinfo) ++ kobject_put(&sbinfo->si_kobj); ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++void *au_array_alloc(unsigned long long *hint, au_arraycb_t cb, ++ struct super_block *sb, void *arg) ++{ ++ void *array; ++ unsigned long long n, sz; ++ ++ array = NULL; ++ n = 0; ++ if (!*hint) ++ goto out; ++ ++ if (*hint > ULLONG_MAX / sizeof(array)) { ++ array = ERR_PTR(-EMFILE); ++ pr_err("hint %llu\n", *hint); ++ goto out; ++ } ++ ++ sz = sizeof(array) * *hint; ++ array = kzalloc(sz, GFP_NOFS); ++ if (unlikely(!array)) ++ array = vzalloc(sz); ++ if (unlikely(!array)) { ++ array = ERR_PTR(-ENOMEM); ++ goto out; ++ } ++ ++ n = cb(sb, array, *hint, arg); ++ AuDebugOn(n > *hint); ++ ++out: ++ *hint = n; ++ return array; ++} ++ ++static unsigned long long au_iarray_cb(struct super_block *sb, void *a, ++ unsigned long long max __maybe_unused, ++ void *arg) ++{ ++ unsigned long long n; ++ struct inode **p, *inode; ++ struct list_head *head; ++ ++ n = 0; ++ p = a; ++ head = arg; ++ spin_lock(&sb->s_inode_list_lock); ++ list_for_each_entry(inode, head, i_sb_list) { ++ if (!au_is_bad_inode(inode) ++ && au_ii(inode)->ii_btop >= 0) { ++ spin_lock(&inode->i_lock); ++ if (atomic_read(&inode->i_count)) { ++ au_igrab(inode); ++ *p++ = inode; ++ n++; ++ AuDebugOn(n > max); ++ } ++ spin_unlock(&inode->i_lock); ++ } ++ } ++ spin_unlock(&sb->s_inode_list_lock); ++ ++ return n; ++} ++ ++struct inode **au_iarray_alloc(struct super_block *sb, unsigned long long *max) ++{ ++ struct au_sbinfo *sbi; ++ ++ sbi = au_sbi(sb); ++ *max = au_lcnt_read(&sbi->si_ninodes, /*do_rev*/1); ++ return au_array_alloc(max, au_iarray_cb, sb, &sb->s_inodes); ++} ++ ++void au_iarray_free(struct inode **a, unsigned long long max) ++{ ++ unsigned long long ull; ++ ++ for (ull = 0; ull < max; ull++) ++ iput(a[ull]); ++ kvfree(a); ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++/* ++ * refresh dentry and inode at remount time. ++ */ ++/* todo: consolidate with simple_reval_dpath() and au_reval_for_attr() */ ++static int au_do_refresh(struct dentry *dentry, unsigned int dir_flags, ++ struct dentry *parent) ++{ ++ int err; ++ ++ di_write_lock_child(dentry); ++ di_read_lock_parent(parent, AuLock_IR); ++ err = au_refresh_dentry(dentry, parent); ++ if (!err && dir_flags) ++ au_hn_reset(d_inode(dentry), dir_flags); ++ di_read_unlock(parent, AuLock_IR); ++ di_write_unlock(dentry); ++ ++ return err; ++} ++ ++static int au_do_refresh_d(struct dentry *dentry, unsigned int sigen, ++ struct au_sbinfo *sbinfo, ++ const unsigned int dir_flags, unsigned int do_idop) ++{ ++ int err; ++ struct dentry *parent; ++ ++ err = 0; ++ parent = dget_parent(dentry); ++ if (!au_digen_test(parent, sigen) && au_digen_test(dentry, sigen)) { ++ if (d_really_is_positive(dentry)) { ++ if (!d_is_dir(dentry)) ++ err = au_do_refresh(dentry, /*dir_flags*/0, ++ parent); ++ else { ++ err = au_do_refresh(dentry, dir_flags, parent); ++ if (unlikely(err)) ++ au_fset_si(sbinfo, FAILED_REFRESH_DIR); ++ } ++ } else ++ err = au_do_refresh(dentry, /*dir_flags*/0, parent); ++ AuDbgDentry(dentry); ++ } ++ dput(parent); ++ ++ if (!err) { ++ if (do_idop) ++ au_refresh_dop(dentry, /*force_reval*/0); ++ } else ++ au_refresh_dop(dentry, /*force_reval*/1); ++ ++ AuTraceErr(err); ++ return err; ++} ++ ++static int au_refresh_d(struct super_block *sb, unsigned int do_idop) ++{ ++ int err, i, j, ndentry, e; ++ unsigned int sigen; ++ struct au_dcsub_pages dpages; ++ struct au_dpage *dpage; ++ struct dentry **dentries, *d; ++ struct au_sbinfo *sbinfo; ++ struct dentry *root = sb->s_root; ++ const unsigned int dir_flags = au_hi_flags(d_inode(root), /*isdir*/1); ++ ++ if (do_idop) ++ au_refresh_dop(root, /*force_reval*/0); ++ ++ err = au_dpages_init(&dpages, GFP_NOFS); ++ if (unlikely(err)) ++ goto out; ++ err = au_dcsub_pages(&dpages, root, NULL, NULL); ++ if (unlikely(err)) ++ goto out_dpages; ++ ++ sigen = au_sigen(sb); ++ sbinfo = au_sbi(sb); ++ for (i = 0; i < dpages.ndpage; i++) { ++ dpage = dpages.dpages + i; ++ dentries = dpage->dentries; ++ ndentry = dpage->ndentry; ++ for (j = 0; j < ndentry; j++) { ++ d = dentries[j]; ++ e = au_do_refresh_d(d, sigen, sbinfo, dir_flags, ++ do_idop); ++ if (unlikely(e && !err)) ++ err = e; ++ /* go on even err */ ++ } ++ } ++ ++out_dpages: ++ au_dpages_free(&dpages); ++out: ++ return err; ++} ++ ++static int au_refresh_i(struct super_block *sb, unsigned int do_idop) ++{ ++ int err, e; ++ unsigned int sigen; ++ unsigned long long max, ull; ++ struct inode *inode, **array; ++ ++ array = au_iarray_alloc(sb, &max); ++ err = PTR_ERR(array); ++ if (IS_ERR(array)) ++ goto out; ++ ++ err = 0; ++ sigen = au_sigen(sb); ++ for (ull = 0; ull < max; ull++) { ++ inode = array[ull]; ++ if (unlikely(!inode)) ++ break; ++ ++ e = 0; ++ ii_write_lock_child(inode); ++ if (au_iigen(inode, NULL) != sigen) { ++ e = au_refresh_hinode_self(inode); ++ if (unlikely(e)) { ++ au_refresh_iop(inode, /*force_getattr*/1); ++ pr_err("error %d, i%lu\n", e, inode->i_ino); ++ if (!err) ++ err = e; ++ /* go on even if err */ ++ } ++ } ++ if (!e && do_idop) ++ au_refresh_iop(inode, /*force_getattr*/0); ++ ii_write_unlock(inode); ++ } ++ ++ au_iarray_free(array, max); ++ ++out: ++ return err; ++} ++ ++void au_remount_refresh(struct super_block *sb, unsigned int do_idop) ++{ ++ int err, e; ++ unsigned int udba; ++ aufs_bindex_t bindex, bbot; ++ struct dentry *root; ++ struct inode *inode; ++ struct au_branch *br; ++ struct au_sbinfo *sbi; ++ ++ au_sigen_inc(sb); ++ sbi = au_sbi(sb); ++ au_fclr_si(sbi, FAILED_REFRESH_DIR); ++ ++ root = sb->s_root; ++ DiMustNoWaiters(root); ++ inode = d_inode(root); ++ IiMustNoWaiters(inode); ++ ++ udba = au_opt_udba(sb); ++ bbot = au_sbbot(sb); ++ for (bindex = 0; bindex <= bbot; bindex++) { ++ br = au_sbr(sb, bindex); ++ err = au_hnotify_reset_br(udba, br, br->br_perm); ++ if (unlikely(err)) ++ AuIOErr("hnotify failed on br %d, %d, ignored\n", ++ bindex, err); ++ /* go on even if err */ ++ } ++ au_hn_reset(inode, au_hi_flags(inode, /*isdir*/1)); ++ ++ if (do_idop) { ++ if (au_ftest_si(sbi, NO_DREVAL)) { ++ AuDebugOn(sb->s_d_op == &aufs_dop_noreval); ++ sb->s_d_op = &aufs_dop_noreval; ++ AuDebugOn(sbi->si_iop_array == aufs_iop_nogetattr); ++ sbi->si_iop_array = aufs_iop_nogetattr; ++ } else { ++ AuDebugOn(sb->s_d_op == &aufs_dop); ++ sb->s_d_op = &aufs_dop; ++ AuDebugOn(sbi->si_iop_array == aufs_iop); ++ sbi->si_iop_array = aufs_iop; ++ } ++ pr_info("reset to %ps and %ps\n", ++ sb->s_d_op, sbi->si_iop_array); ++ } ++ ++ di_write_unlock(root); ++ err = au_refresh_d(sb, do_idop); ++ e = au_refresh_i(sb, do_idop); ++ if (unlikely(e && !err)) ++ err = e; ++ /* aufs_write_lock() calls ..._child() */ ++ di_write_lock_child(root); ++ ++ au_cpup_attr_all(inode, /*force*/1); ++ ++ if (unlikely(err)) ++ AuIOErr("refresh failed, ignored, %d\n", err); ++} ++ ++const struct super_operations aufs_sop = { ++ .alloc_inode = aufs_alloc_inode, ++ .destroy_inode = aufs_destroy_inode, ++ .free_inode = aufs_free_inode, ++ /* always deleting, no clearing */ ++ .drop_inode = generic_delete_inode, ++ .show_options = aufs_show_options, ++ .statfs = aufs_statfs, ++ .put_super = aufs_put_super, ++ .sync_fs = aufs_sync_fs ++}; ++ ++/* ---------------------------------------------------------------------- */ ++ ++int au_alloc_root(struct super_block *sb) ++{ ++ int err; ++ struct inode *inode; ++ struct dentry *root; ++ ++ err = -ENOMEM; ++ inode = au_iget_locked(sb, AUFS_ROOT_INO); ++ err = PTR_ERR(inode); ++ if (IS_ERR(inode)) ++ goto out; ++ ++ inode->i_op = aufs_iop + AuIop_DIR; /* with getattr by default */ ++ inode->i_fop = &aufs_dir_fop; ++ inode->i_mode = S_IFDIR; ++ set_nlink(inode, 2); ++ unlock_new_inode(inode); ++ ++ root = d_make_root(inode); ++ if (unlikely(!root)) ++ goto out; ++ err = PTR_ERR(root); ++ if (IS_ERR(root)) ++ goto out; ++ ++ err = au_di_init(root); ++ if (!err) { ++ sb->s_root = root; ++ return 0; /* success */ ++ } ++ dput(root); ++ ++out: ++ return err; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++static void aufs_kill_sb(struct super_block *sb) ++{ ++ struct au_sbinfo *sbinfo; ++ struct dentry *root; ++ ++ sbinfo = au_sbi(sb); ++ if (!sbinfo) ++ goto out; ++ ++ au_sbilist_del(sb); ++ ++ root = sb->s_root; ++ if (root) ++ aufs_write_lock(root); ++ else ++ __si_write_lock(sb); ++ ++ au_fhsm_fin(sb); ++ if (sbinfo->si_wbr_create_ops->fin) ++ sbinfo->si_wbr_create_ops->fin(sb); ++ if (au_opt_test(sbinfo->si_mntflags, UDBA_HNOTIFY)) { ++ au_opt_set_udba(sbinfo->si_mntflags, UDBA_NONE); ++ au_remount_refresh(sb, /*do_idop*/0); ++ } ++ if (au_opt_test(sbinfo->si_mntflags, PLINK)) ++ au_plink_put(sb, /*verbose*/1); ++ au_xino_clr(sb); ++ if (root) ++ au_dr_opt_flush(sb); ++ ++ if (root) ++ aufs_write_unlock(root); ++ else ++ __si_write_unlock(sb); ++ ++ sbinfo->si_sb = NULL; ++ au_nwt_flush(&sbinfo->si_nowait); ++ ++out: ++ kill_anon_super(sb); ++} ++ ++struct file_system_type aufs_fs_type = { ++ .name = AUFS_FSTYPE, ++ /* a race between rename and others */ ++ .fs_flags = FS_RENAME_DOES_D_MOVE ++ /* untested */ ++ /*| FS_ALLOW_IDMAP*/ ++ , ++ .init_fs_context = aufs_fsctx_init, ++ .parameters = aufs_fsctx_paramspec, ++ .kill_sb = aufs_kill_sb, ++ /* no need to __module_get() and module_put(). */ ++ .owner = THIS_MODULE, ++}; +diff -Naur linux-5.15/fs/aufs/super.h aufs5-linux-aufs5.15/fs/aufs/super.h +--- linux-5.15/fs/aufs/super.h 1970-01-01 03:00:00.000000000 +0300 ++++ aufs5-linux-aufs5.15/fs/aufs/super.h 2022-03-07 13:48:09.000000000 +0300 +@@ -0,0 +1,579 @@ ++/* SPDX-License-Identifier: GPL-2.0 */ ++/* ++ * Copyright (C) 2005-2021 Junjiro R. Okajima ++ */ ++ ++/* ++ * super_block operations ++ */ ++ ++#ifndef __AUFS_SUPER_H__ ++#define __AUFS_SUPER_H__ ++ ++#ifdef __KERNEL__ ++ ++#include ++#include ++#include "hbl.h" ++#include "lcnt.h" ++#include "rwsem.h" ++#include "wkq.h" ++ ++/* policies to select one among multiple writable branches */ ++struct au_wbr_copyup_operations { ++ int (*copyup)(struct dentry *dentry); ++}; ++ ++#define AuWbr_DIR 1 /* target is a dir */ ++#define AuWbr_PARENT (1 << 1) /* always require a parent */ ++ ++#define au_ftest_wbr(flags, name) ((flags) & AuWbr_##name) ++#define au_fset_wbr(flags, name) { (flags) |= AuWbr_##name; } ++#define au_fclr_wbr(flags, name) { (flags) &= ~AuWbr_##name; } ++ ++struct au_wbr_create_operations { ++ int (*create)(struct dentry *dentry, unsigned int flags); ++ int (*init)(struct super_block *sb); ++ int (*fin)(struct super_block *sb); ++}; ++ ++struct au_wbr_mfs { ++ struct mutex mfs_lock; /* protect this structure */ ++ unsigned long mfs_jiffy; ++ unsigned long mfs_expire; ++ aufs_bindex_t mfs_bindex; ++ ++ unsigned long long mfsrr_bytes; ++ unsigned long long mfsrr_watermark; ++}; ++ ++#define AuPlink_NHASH 100 ++static inline int au_plink_hash(ino_t ino) ++{ ++ return ino % AuPlink_NHASH; ++} ++ ++/* File-based Hierarchical Storage Management */ ++struct au_fhsm { ++#ifdef CONFIG_AUFS_FHSM ++ /* allow only one process who can receive the notification */ ++ spinlock_t fhsm_spin; ++ pid_t fhsm_pid; ++ wait_queue_head_t fhsm_wqh; ++ atomic_t fhsm_readable; ++ ++ /* these are protected by si_rwsem */ ++ unsigned long fhsm_expire; ++ aufs_bindex_t fhsm_bottom; ++#endif ++}; ++ ++struct au_branch; ++struct au_sbinfo { ++ /* nowait tasks in the system-wide workqueue */ ++ struct au_nowait_tasks si_nowait; ++ ++ /* ++ * tried sb->s_umount, but failed due to the dependency between i_mutex. ++ * rwsem for au_sbinfo is necessary. ++ */ ++ struct au_rwsem si_rwsem; ++ ++ /* ++ * dirty approach to protect sb->sb_inodes and ->s_files (gone) from ++ * remount. ++ */ ++ au_lcnt_t si_ninodes, si_nfiles; ++ ++ /* branch management */ ++ unsigned int si_generation; ++ ++ /* see AuSi_ flags */ ++ unsigned char au_si_status; ++ ++ aufs_bindex_t si_bbot; ++ ++ /* dirty trick to keep br_id plus */ ++ unsigned int si_last_br_id : ++ sizeof(aufs_bindex_t) * BITS_PER_BYTE - 1; ++ struct au_branch **si_branch; ++ ++ /* policy to select a writable branch */ ++ unsigned char si_wbr_copyup; ++ unsigned char si_wbr_create; ++ struct au_wbr_copyup_operations *si_wbr_copyup_ops; ++ struct au_wbr_create_operations *si_wbr_create_ops; ++ ++ /* round robin */ ++ atomic_t si_wbr_rr_next; ++ ++ /* most free space */ ++ struct au_wbr_mfs si_wbr_mfs; ++ ++ /* File-based Hierarchical Storage Management */ ++ struct au_fhsm si_fhsm; ++ ++ /* mount flags */ ++ /* include/asm-ia64/siginfo.h defines a macro named si_flags */ ++ unsigned int si_mntflags; ++ ++ /* external inode number (bitmap and translation table) */ ++ loff_t si_ximaxent; /* max entries in a xino */ ++ ++ struct file *si_xib; ++ struct mutex si_xib_mtx; /* protect xib members */ ++ unsigned long *si_xib_buf; ++ unsigned long si_xib_last_pindex; ++ int si_xib_next_bit; ++ ++ unsigned long si_xino_jiffy; ++ unsigned long si_xino_expire; ++ /* reserved for future use */ ++ /* unsigned long long si_xib_limit; */ /* Max xib file size */ ++ ++#ifdef CONFIG_AUFS_EXPORT ++ /* i_generation */ ++ /* todo: make xigen file an array to support many inode numbers */ ++ struct file *si_xigen; ++ atomic_t si_xigen_next; ++#endif ++ ++ /* dirty trick to support atomic_open */ ++ struct hlist_bl_head si_aopen; ++ ++ /* vdir parameters */ ++ unsigned long si_rdcache; /* max cache time in jiffies */ ++ unsigned int si_rdblk; /* deblk size */ ++ unsigned int si_rdhash; /* hash size */ ++ ++ /* ++ * If the number of whiteouts are larger than si_dirwh, leave all of ++ * them after au_whtmp_ren to reduce the cost of rmdir(2). ++ * future fsck.aufs or kernel thread will remove them later. ++ * Otherwise, remove all whiteouts and the dir in rmdir(2). ++ */ ++ unsigned int si_dirwh; ++ ++ /* pseudo_link list */ ++ struct hlist_bl_head si_plink[AuPlink_NHASH]; ++ wait_queue_head_t si_plink_wq; ++ spinlock_t si_plink_maint_lock; ++ pid_t si_plink_maint_pid; ++ ++ /* file list */ ++ struct hlist_bl_head si_files; ++ ++ /* with/without getattr, brother of sb->s_d_op */ ++ const struct inode_operations *si_iop_array; ++ ++ /* ++ * sysfs and lifetime management. ++ * this is not a small structure and it may be a waste of memory in case ++ * of sysfs is disabled, particularly when many aufs-es are mounted. ++ * but using sysfs is majority. ++ */ ++ struct kobject si_kobj; ++#ifdef CONFIG_DEBUG_FS ++ struct dentry *si_dbgaufs; ++ struct dentry *si_dbgaufs_plink; ++ struct dentry *si_dbgaufs_xib; ++#ifdef CONFIG_AUFS_EXPORT ++ struct dentry *si_dbgaufs_xigen; ++#endif ++#endif ++ ++#ifdef CONFIG_AUFS_SBILIST ++ struct hlist_bl_node si_list; ++#endif ++ ++ /* dirty, necessary for unmounting, sysfs and sysrq */ ++ struct super_block *si_sb; ++}; ++ ++/* sbinfo status flags */ ++/* ++ * set true when refresh_dirs() failed at remount time. ++ * then try refreshing dirs at access time again. ++ * if it is false, refreshing dirs at access time is unnecessary ++ */ ++#define AuSi_FAILED_REFRESH_DIR 1 ++#define AuSi_FHSM (1 << 1) /* fhsm is active now */ ++#define AuSi_NO_DREVAL (1 << 2) /* disable all d_revalidate */ ++ ++#ifndef CONFIG_AUFS_FHSM ++#undef AuSi_FHSM ++#define AuSi_FHSM 0 ++#endif ++ ++static inline unsigned char au_do_ftest_si(struct au_sbinfo *sbi, ++ unsigned int flag) ++{ ++ AuRwMustAnyLock(&sbi->si_rwsem); ++ return sbi->au_si_status & flag; ++} ++#define au_ftest_si(sbinfo, name) au_do_ftest_si(sbinfo, AuSi_##name) ++#define au_fset_si(sbinfo, name) do { \ ++ AuRwMustWriteLock(&(sbinfo)->si_rwsem); \ ++ (sbinfo)->au_si_status |= AuSi_##name; \ ++} while (0) ++#define au_fclr_si(sbinfo, name) do { \ ++ AuRwMustWriteLock(&(sbinfo)->si_rwsem); \ ++ (sbinfo)->au_si_status &= ~AuSi_##name; \ ++} while (0) ++ ++/* ---------------------------------------------------------------------- */ ++ ++/* policy to select one among writable branches */ ++#define AuWbrCopyup(sbinfo, ...) \ ++ ((sbinfo)->si_wbr_copyup_ops->copyup(__VA_ARGS__)) ++#define AuWbrCreate(sbinfo, ...) \ ++ ((sbinfo)->si_wbr_create_ops->create(__VA_ARGS__)) ++ ++/* flags for si_read_lock()/aufs_read_lock()/di_read_lock() */ ++#define AuLock_DW 1 /* write-lock dentry */ ++#define AuLock_IR (1 << 1) /* read-lock inode */ ++#define AuLock_IW (1 << 2) /* write-lock inode */ ++#define AuLock_FLUSH (1 << 3) /* wait for 'nowait' tasks */ ++#define AuLock_DIRS (1 << 4) /* target is a pair of dirs */ ++ /* except RENAME_EXCHANGE */ ++#define AuLock_NOPLM (1 << 5) /* return err in plm mode */ ++#define AuLock_NOPLMW (1 << 6) /* wait for plm mode ends */ ++#define AuLock_GEN (1 << 7) /* test digen/iigen */ ++#define au_ftest_lock(flags, name) ((flags) & AuLock_##name) ++#define au_fset_lock(flags, name) \ ++ do { (flags) |= AuLock_##name; } while (0) ++#define au_fclr_lock(flags, name) \ ++ do { (flags) &= ~AuLock_##name; } while (0) ++ ++/* ---------------------------------------------------------------------- */ ++ ++/* super.c */ ++struct inode *au_iget_locked(struct super_block *sb, ino_t ino); ++ ++typedef unsigned long long (*au_arraycb_t)(struct super_block *sb, void *array, ++ unsigned long long max, void *arg); ++void *au_array_alloc(unsigned long long *hint, au_arraycb_t cb, ++ struct super_block *sb, void *arg); ++struct inode **au_iarray_alloc(struct super_block *sb, unsigned long long *max); ++void au_iarray_free(struct inode **a, unsigned long long max); ++ ++void au_remount_refresh(struct super_block *sb, unsigned int do_idop); ++extern const struct super_operations aufs_sop; ++int au_alloc_root(struct super_block *sb); ++extern struct file_system_type aufs_fs_type; ++ ++/* sbinfo.c */ ++void au_si_free(struct kobject *kobj); ++struct au_sbinfo *au_si_alloc(struct super_block *sb); ++int au_sbr_realloc(struct au_sbinfo *sbinfo, int nbr, int may_shrink); ++ ++unsigned int au_sigen_inc(struct super_block *sb); ++aufs_bindex_t au_new_br_id(struct super_block *sb); ++ ++int si_read_lock(struct super_block *sb, int flags); ++int si_write_lock(struct super_block *sb, int flags); ++int aufs_read_lock(struct dentry *dentry, int flags); ++void aufs_read_unlock(struct dentry *dentry, int flags); ++void aufs_write_lock(struct dentry *dentry); ++void aufs_write_unlock(struct dentry *dentry); ++int aufs_read_and_write_lock2(struct dentry *d1, struct dentry *d2, int flags); ++void aufs_read_and_write_unlock2(struct dentry *d1, struct dentry *d2); ++ ++/* wbr_policy.c */ ++extern struct au_wbr_copyup_operations au_wbr_copyup_ops[]; ++extern struct au_wbr_create_operations au_wbr_create_ops[]; ++int au_cpdown_dirs(struct dentry *dentry, aufs_bindex_t bdst); ++int au_wbr_nonopq(struct dentry *dentry, aufs_bindex_t bindex); ++int au_wbr_do_copyup_bu(struct dentry *dentry, aufs_bindex_t btop); ++ ++/* mvdown.c */ ++int au_mvdown(struct dentry *dentry, struct aufs_mvdown __user *arg); ++ ++#ifdef CONFIG_AUFS_FHSM ++/* fhsm.c */ ++ ++static inline pid_t au_fhsm_pid(struct au_fhsm *fhsm) ++{ ++ pid_t pid; ++ ++ spin_lock(&fhsm->fhsm_spin); ++ pid = fhsm->fhsm_pid; ++ spin_unlock(&fhsm->fhsm_spin); ++ ++ return pid; ++} ++ ++void au_fhsm_wrote(struct super_block *sb, aufs_bindex_t bindex, int force); ++void au_fhsm_wrote_all(struct super_block *sb, int force); ++int au_fhsm_fd(struct super_block *sb, int oflags); ++int au_fhsm_br_alloc(struct au_branch *br); ++void au_fhsm_set_bottom(struct super_block *sb, aufs_bindex_t bindex); ++void au_fhsm_fin(struct super_block *sb); ++void au_fhsm_init(struct au_sbinfo *sbinfo); ++void au_fhsm_set(struct au_sbinfo *sbinfo, unsigned int sec); ++void au_fhsm_show(struct seq_file *seq, struct au_sbinfo *sbinfo); ++#else ++AuStubVoid(au_fhsm_wrote, struct super_block *sb, aufs_bindex_t bindex, ++ int force) ++AuStubVoid(au_fhsm_wrote_all, struct super_block *sb, int force) ++AuStub(int, au_fhsm_fd, return -EOPNOTSUPP, struct super_block *sb, int oflags) ++AuStub(pid_t, au_fhsm_pid, return 0, struct au_fhsm *fhsm) ++AuStubInt0(au_fhsm_br_alloc, struct au_branch *br) ++AuStubVoid(au_fhsm_set_bottom, struct super_block *sb, aufs_bindex_t bindex) ++AuStubVoid(au_fhsm_fin, struct super_block *sb) ++AuStubVoid(au_fhsm_init, struct au_sbinfo *sbinfo) ++AuStubVoid(au_fhsm_set, struct au_sbinfo *sbinfo, unsigned int sec) ++AuStubVoid(au_fhsm_show, struct seq_file *seq, struct au_sbinfo *sbinfo) ++#endif ++ ++/* ---------------------------------------------------------------------- */ ++ ++static inline struct au_sbinfo *au_sbi(struct super_block *sb) ++{ ++ return sb->s_fs_info; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++#ifdef CONFIG_AUFS_EXPORT ++int au_test_nfsd(void); ++void au_export_init(struct super_block *sb); ++void au_xigen_inc(struct inode *inode); ++int au_xigen_new(struct inode *inode); ++int au_xigen_set(struct super_block *sb, struct path *path); ++void au_xigen_clr(struct super_block *sb); ++ ++static inline int au_busy_or_stale(void) ++{ ++ if (!au_test_nfsd()) ++ return -EBUSY; ++ return -ESTALE; ++} ++#else ++AuStubInt0(au_test_nfsd, void) ++AuStubVoid(au_export_init, struct super_block *sb) ++AuStubVoid(au_xigen_inc, struct inode *inode) ++AuStubInt0(au_xigen_new, struct inode *inode) ++AuStubInt0(au_xigen_set, struct super_block *sb, struct path *path) ++AuStubVoid(au_xigen_clr, struct super_block *sb) ++AuStub(int, au_busy_or_stale, return -EBUSY, void) ++#endif /* CONFIG_AUFS_EXPORT */ ++ ++/* ---------------------------------------------------------------------- */ ++ ++#ifdef CONFIG_AUFS_SBILIST ++/* module.c */ ++extern struct hlist_bl_head au_sbilist; ++ ++static inline void au_sbilist_init(void) ++{ ++ INIT_HLIST_BL_HEAD(&au_sbilist); ++} ++ ++static inline void au_sbilist_add(struct super_block *sb) ++{ ++ au_hbl_add(&au_sbi(sb)->si_list, &au_sbilist); ++} ++ ++static inline void au_sbilist_del(struct super_block *sb) ++{ ++ au_hbl_del(&au_sbi(sb)->si_list, &au_sbilist); ++} ++ ++#ifdef CONFIG_AUFS_MAGIC_SYSRQ ++static inline void au_sbilist_lock(void) ++{ ++ hlist_bl_lock(&au_sbilist); ++} ++ ++static inline void au_sbilist_unlock(void) ++{ ++ hlist_bl_unlock(&au_sbilist); ++} ++#define AuGFP_SBILIST GFP_ATOMIC ++#else ++AuStubVoid(au_sbilist_lock, void) ++AuStubVoid(au_sbilist_unlock, void) ++#define AuGFP_SBILIST GFP_NOFS ++#endif /* CONFIG_AUFS_MAGIC_SYSRQ */ ++#else ++AuStubVoid(au_sbilist_init, void) ++AuStubVoid(au_sbilist_add, struct super_block *sb) ++AuStubVoid(au_sbilist_del, struct super_block *sb) ++AuStubVoid(au_sbilist_lock, void) ++AuStubVoid(au_sbilist_unlock, void) ++#define AuGFP_SBILIST GFP_NOFS ++#endif ++ ++/* ---------------------------------------------------------------------- */ ++ ++static inline void dbgaufs_si_null(struct au_sbinfo *sbinfo) ++{ ++ /* ++ * This function is a dynamic '__init' function actually, ++ * so the tiny check for si_rwsem is unnecessary. ++ */ ++ /* AuRwMustWriteLock(&sbinfo->si_rwsem); */ ++#ifdef CONFIG_DEBUG_FS ++ sbinfo->si_dbgaufs = NULL; ++ sbinfo->si_dbgaufs_plink = NULL; ++ sbinfo->si_dbgaufs_xib = NULL; ++#ifdef CONFIG_AUFS_EXPORT ++ sbinfo->si_dbgaufs_xigen = NULL; ++#endif ++#endif ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++/* current->atomic_flags */ ++/* this value should never corrupt the ones defined in linux/sched.h */ ++#define PFA_AUFS 0x10 ++ ++TASK_PFA_TEST(AUFS, test_aufs) /* task_test_aufs */ ++TASK_PFA_SET(AUFS, aufs) /* task_set_aufs */ ++TASK_PFA_CLEAR(AUFS, aufs) /* task_clear_aufs */ ++ ++static inline int si_pid_test(struct super_block *sb) ++{ ++ return !!task_test_aufs(current); ++} ++ ++static inline void si_pid_clr(struct super_block *sb) ++{ ++ AuDebugOn(!task_test_aufs(current)); ++ task_clear_aufs(current); ++} ++ ++static inline void si_pid_set(struct super_block *sb) ++{ ++ AuDebugOn(task_test_aufs(current)); ++ task_set_aufs(current); ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++/* lock superblock. mainly for entry point functions */ ++#define __si_read_lock(sb) au_rw_read_lock(&au_sbi(sb)->si_rwsem) ++#define __si_write_lock(sb) au_rw_write_lock(&au_sbi(sb)->si_rwsem) ++#define __si_read_trylock(sb) au_rw_read_trylock(&au_sbi(sb)->si_rwsem) ++#define __si_write_trylock(sb) au_rw_write_trylock(&au_sbi(sb)->si_rwsem) ++/* ++#define __si_read_trylock_nested(sb) \ ++ au_rw_read_trylock_nested(&au_sbi(sb)->si_rwsem) ++#define __si_write_trylock_nested(sb) \ ++ au_rw_write_trylock_nested(&au_sbi(sb)->si_rwsem) ++*/ ++ ++#define __si_read_unlock(sb) au_rw_read_unlock(&au_sbi(sb)->si_rwsem) ++#define __si_write_unlock(sb) au_rw_write_unlock(&au_sbi(sb)->si_rwsem) ++#define __si_downgrade_lock(sb) au_rw_dgrade_lock(&au_sbi(sb)->si_rwsem) ++ ++#define SiMustNoWaiters(sb) AuRwMustNoWaiters(&au_sbi(sb)->si_rwsem) ++#define SiMustAnyLock(sb) AuRwMustAnyLock(&au_sbi(sb)->si_rwsem) ++#define SiMustWriteLock(sb) AuRwMustWriteLock(&au_sbi(sb)->si_rwsem) ++ ++static inline void si_noflush_read_lock(struct super_block *sb) ++{ ++ __si_read_lock(sb); ++ si_pid_set(sb); ++} ++ ++static inline int si_noflush_read_trylock(struct super_block *sb) ++{ ++ int locked; ++ ++ locked = __si_read_trylock(sb); ++ if (locked) ++ si_pid_set(sb); ++ return locked; ++} ++ ++static inline void si_noflush_write_lock(struct super_block *sb) ++{ ++ __si_write_lock(sb); ++ si_pid_set(sb); ++} ++ ++static inline int si_noflush_write_trylock(struct super_block *sb) ++{ ++ int locked; ++ ++ locked = __si_write_trylock(sb); ++ if (locked) ++ si_pid_set(sb); ++ return locked; ++} ++ ++#if 0 /* reserved */ ++static inline int si_read_trylock(struct super_block *sb, int flags) ++{ ++ if (au_ftest_lock(flags, FLUSH)) ++ au_nwt_flush(&au_sbi(sb)->si_nowait); ++ return si_noflush_read_trylock(sb); ++} ++#endif ++ ++static inline void si_read_unlock(struct super_block *sb) ++{ ++ si_pid_clr(sb); ++ __si_read_unlock(sb); ++} ++ ++#if 0 /* reserved */ ++static inline int si_write_trylock(struct super_block *sb, int flags) ++{ ++ if (au_ftest_lock(flags, FLUSH)) ++ au_nwt_flush(&au_sbi(sb)->si_nowait); ++ return si_noflush_write_trylock(sb); ++} ++#endif ++ ++static inline void si_write_unlock(struct super_block *sb) ++{ ++ si_pid_clr(sb); ++ __si_write_unlock(sb); ++} ++ ++#if 0 /* reserved */ ++static inline void si_downgrade_lock(struct super_block *sb) ++{ ++ __si_downgrade_lock(sb); ++} ++#endif ++ ++/* ---------------------------------------------------------------------- */ ++ ++static inline aufs_bindex_t au_sbbot(struct super_block *sb) ++{ ++ SiMustAnyLock(sb); ++ return au_sbi(sb)->si_bbot; ++} ++ ++static inline unsigned int au_mntflags(struct super_block *sb) ++{ ++ SiMustAnyLock(sb); ++ return au_sbi(sb)->si_mntflags; ++} ++ ++static inline unsigned int au_sigen(struct super_block *sb) ++{ ++ SiMustAnyLock(sb); ++ return au_sbi(sb)->si_generation; ++} ++ ++static inline struct au_branch *au_sbr(struct super_block *sb, ++ aufs_bindex_t bindex) ++{ ++ SiMustAnyLock(sb); ++ return au_sbi(sb)->si_branch[0 + bindex]; ++} ++ ++static inline loff_t au_xi_maxent(struct super_block *sb) ++{ ++ SiMustAnyLock(sb); ++ return au_sbi(sb)->si_ximaxent; ++} ++ ++#endif /* __KERNEL__ */ ++#endif /* __AUFS_SUPER_H__ */ +diff -Naur linux-5.15/fs/aufs/sysaufs.c aufs5-linux-aufs5.15/fs/aufs/sysaufs.c +--- linux-5.15/fs/aufs/sysaufs.c 1970-01-01 03:00:00.000000000 +0300 ++++ aufs5-linux-aufs5.15/fs/aufs/sysaufs.c 2022-03-07 13:48:09.000000000 +0300 +@@ -0,0 +1,80 @@ ++// SPDX-License-Identifier: GPL-2.0 ++/* ++ * Copyright (C) 2005-2021 Junjiro R. Okajima ++ */ ++ ++/* ++ * sysfs interface and lifetime management ++ * they are necessary regardless sysfs is disabled. ++ */ ++ ++#include ++#include "aufs.h" ++ ++unsigned long sysaufs_si_mask; ++struct kset *sysaufs_kset; ++ ++#define AuSiAttr(_name) { \ ++ .attr = { .name = __stringify(_name), .mode = 0444 }, \ ++ .show = sysaufs_si_##_name, \ ++} ++ ++static struct sysaufs_si_attr sysaufs_si_attr_xi_path = AuSiAttr(xi_path); ++struct attribute *sysaufs_si_attrs[] = { ++ &sysaufs_si_attr_xi_path.attr, ++ NULL, ++}; ++ ++static const struct sysfs_ops au_sbi_ops = { ++ .show = sysaufs_si_show ++}; ++ ++static struct kobj_type au_sbi_ktype = { ++ .release = au_si_free, ++ .sysfs_ops = &au_sbi_ops, ++ .default_attrs = sysaufs_si_attrs ++}; ++ ++/* ---------------------------------------------------------------------- */ ++ ++int sysaufs_si_init(struct au_sbinfo *sbinfo) ++{ ++ int err; ++ ++ sbinfo->si_kobj.kset = sysaufs_kset; ++ /* cf. sysaufs_name() */ ++ err = kobject_init_and_add ++ (&sbinfo->si_kobj, &au_sbi_ktype, /*&sysaufs_kset->kobj*/NULL, ++ SysaufsSiNamePrefix "%lx", sysaufs_si_id(sbinfo)); ++ ++ return err; ++} ++ ++void sysaufs_fin(void) ++{ ++ sysfs_remove_group(&sysaufs_kset->kobj, sysaufs_attr_group); ++ kset_unregister(sysaufs_kset); ++} ++ ++int __init sysaufs_init(void) ++{ ++ int err; ++ ++ do { ++ get_random_bytes(&sysaufs_si_mask, sizeof(sysaufs_si_mask)); ++ } while (!sysaufs_si_mask); ++ ++ err = -EINVAL; ++ sysaufs_kset = kset_create_and_add(AUFS_NAME, NULL, fs_kobj); ++ if (unlikely(!sysaufs_kset)) ++ goto out; ++ err = PTR_ERR(sysaufs_kset); ++ if (IS_ERR(sysaufs_kset)) ++ goto out; ++ err = sysfs_create_group(&sysaufs_kset->kobj, sysaufs_attr_group); ++ if (unlikely(err)) ++ kset_unregister(sysaufs_kset); ++ ++out: ++ return err; ++} +diff -Naur linux-5.15/fs/aufs/sysaufs.h aufs5-linux-aufs5.15/fs/aufs/sysaufs.h +--- linux-5.15/fs/aufs/sysaufs.h 1970-01-01 03:00:00.000000000 +0300 ++++ aufs5-linux-aufs5.15/fs/aufs/sysaufs.h 2022-03-07 13:48:09.000000000 +0300 +@@ -0,0 +1,89 @@ ++/* SPDX-License-Identifier: GPL-2.0 */ ++/* ++ * Copyright (C) 2005-2021 Junjiro R. Okajima ++ */ ++ ++/* ++ * sysfs interface and mount lifetime management ++ */ ++ ++#ifndef __SYSAUFS_H__ ++#define __SYSAUFS_H__ ++ ++#ifdef __KERNEL__ ++ ++#include ++#include "module.h" ++ ++struct super_block; ++struct au_sbinfo; ++ ++struct sysaufs_si_attr { ++ struct attribute attr; ++ int (*show)(struct seq_file *seq, struct super_block *sb); ++}; ++ ++/* ---------------------------------------------------------------------- */ ++ ++/* sysaufs.c */ ++extern unsigned long sysaufs_si_mask; ++extern struct kset *sysaufs_kset; ++extern struct attribute *sysaufs_si_attrs[]; ++int sysaufs_si_init(struct au_sbinfo *sbinfo); ++int __init sysaufs_init(void); ++void sysaufs_fin(void); ++ ++/* ---------------------------------------------------------------------- */ ++ ++/* some people doesn't like to show a pointer in kernel */ ++static inline unsigned long sysaufs_si_id(struct au_sbinfo *sbinfo) ++{ ++ return sysaufs_si_mask ^ (unsigned long)sbinfo; ++} ++ ++#define SysaufsSiNamePrefix "si_" ++#define SysaufsSiNameLen (sizeof(SysaufsSiNamePrefix) + 16) ++static inline void sysaufs_name(struct au_sbinfo *sbinfo, char *name) ++{ ++ snprintf(name, SysaufsSiNameLen, SysaufsSiNamePrefix "%lx", ++ sysaufs_si_id(sbinfo)); ++} ++ ++struct au_branch; ++#ifdef CONFIG_SYSFS ++/* sysfs.c */ ++extern struct attribute_group *sysaufs_attr_group; ++ ++int sysaufs_si_xi_path(struct seq_file *seq, struct super_block *sb); ++ssize_t sysaufs_si_show(struct kobject *kobj, struct attribute *attr, ++ char *buf); ++long au_brinfo_ioctl(struct file *file, unsigned long arg); ++#ifdef CONFIG_COMPAT ++long au_brinfo_compat_ioctl(struct file *file, unsigned long arg); ++#endif ++ ++void sysaufs_br_init(struct au_branch *br); ++void sysaufs_brs_add(struct super_block *sb, aufs_bindex_t bindex); ++void sysaufs_brs_del(struct super_block *sb, aufs_bindex_t bindex); ++ ++#define sysaufs_brs_init() do {} while (0) ++ ++#else ++#define sysaufs_attr_group NULL ++ ++AuStubInt0(sysaufs_si_xi_path, struct seq_file *seq, struct super_block *sb) ++AuStub(ssize_t, sysaufs_si_show, return 0, struct kobject *kobj, ++ struct attribute *attr, char *buf) ++AuStubVoid(sysaufs_br_init, struct au_branch *br) ++AuStubVoid(sysaufs_brs_add, struct super_block *sb, aufs_bindex_t bindex) ++AuStubVoid(sysaufs_brs_del, struct super_block *sb, aufs_bindex_t bindex) ++ ++static inline void sysaufs_brs_init(void) ++{ ++ sysaufs_brs = 0; ++} ++ ++#endif /* CONFIG_SYSFS */ ++ ++#endif /* __KERNEL__ */ ++#endif /* __SYSAUFS_H__ */ +diff -Naur linux-5.15/fs/aufs/sysfs.c aufs5-linux-aufs5.15/fs/aufs/sysfs.c +--- linux-5.15/fs/aufs/sysfs.c 1970-01-01 03:00:00.000000000 +0300 ++++ aufs5-linux-aufs5.15/fs/aufs/sysfs.c 2022-03-07 13:48:09.000000000 +0300 +@@ -0,0 +1,338 @@ ++// SPDX-License-Identifier: GPL-2.0 ++/* ++ * Copyright (C) 2005-2021 Junjiro R. Okajima ++ */ ++ ++/* ++ * sysfs interface ++ */ ++ ++#include ++#include ++#include "aufs.h" ++ ++static struct attribute *au_attr[] = { ++ NULL, /* need to NULL terminate the list of attributes */ ++}; ++ ++static struct attribute_group sysaufs_attr_group_body = { ++ .attrs = au_attr ++}; ++ ++struct attribute_group *sysaufs_attr_group = &sysaufs_attr_group_body; ++ ++/* ---------------------------------------------------------------------- */ ++ ++int sysaufs_si_xi_path(struct seq_file *seq, struct super_block *sb) ++{ ++ int err; ++ ++ SiMustAnyLock(sb); ++ ++ err = 0; ++ if (au_opt_test(au_mntflags(sb), XINO)) { ++ err = au_xino_path(seq, au_sbi(sb)->si_xib); ++ seq_putc(seq, '\n'); ++ } ++ return err; ++} ++ ++/* ++ * the lifetime of branch is independent from the entry under sysfs. ++ * sysfs handles the lifetime of the entry, and never call ->show() after it is ++ * unlinked. ++ */ ++static int sysaufs_si_br(struct seq_file *seq, struct super_block *sb, ++ aufs_bindex_t bindex, int idx) ++{ ++ int err; ++ struct path path; ++ struct dentry *root; ++ struct au_branch *br; ++ au_br_perm_str_t perm; ++ ++ AuDbg("b%d\n", bindex); ++ ++ err = 0; ++ root = sb->s_root; ++ di_read_lock_parent(root, !AuLock_IR); ++ br = au_sbr(sb, bindex); ++ ++ switch (idx) { ++ case AuBrSysfs_BR: ++ path.mnt = au_br_mnt(br); ++ path.dentry = au_h_dptr(root, bindex); ++ err = au_seq_path(seq, &path); ++ if (!err) { ++ au_optstr_br_perm(&perm, br->br_perm); ++ seq_printf(seq, "=%s\n", perm.a); ++ } ++ break; ++ case AuBrSysfs_BRID: ++ seq_printf(seq, "%d\n", br->br_id); ++ break; ++ } ++ di_read_unlock(root, !AuLock_IR); ++ if (unlikely(err || seq_has_overflowed(seq))) ++ err = -E2BIG; ++ ++ return err; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++static struct seq_file *au_seq(char *p, ssize_t len) ++{ ++ struct seq_file *seq; ++ ++ seq = kzalloc(sizeof(*seq), GFP_NOFS); ++ if (seq) { ++ /* mutex_init(&seq.lock); */ ++ seq->buf = p; ++ seq->size = len; ++ return seq; /* success */ ++ } ++ ++ seq = ERR_PTR(-ENOMEM); ++ return seq; ++} ++ ++#define SysaufsBr_PREFIX "br" ++#define SysaufsBrid_PREFIX "brid" ++ ++/* todo: file size may exceed PAGE_SIZE */ ++ssize_t sysaufs_si_show(struct kobject *kobj, struct attribute *attr, ++ char *buf) ++{ ++ ssize_t err; ++ int idx; ++ long l; ++ aufs_bindex_t bbot; ++ struct au_sbinfo *sbinfo; ++ struct super_block *sb; ++ struct seq_file *seq; ++ char *name; ++ struct attribute **cattr; ++ ++ sbinfo = container_of(kobj, struct au_sbinfo, si_kobj); ++ sb = sbinfo->si_sb; ++ ++ /* ++ * prevent a race condition between sysfs and aufs. ++ * for instance, sysfs_file_read() calls sysfs_get_active_two() which ++ * prohibits maintaining the sysfs entries. ++ * hew we acquire read lock after sysfs_get_active_two(). ++ * on the other hand, the remount process may maintain the sysfs/aufs ++ * entries after acquiring write lock. ++ * it can cause a deadlock. ++ * simply we gave up processing read here. ++ */ ++ err = -EBUSY; ++ if (unlikely(!si_noflush_read_trylock(sb))) ++ goto out; ++ ++ seq = au_seq(buf, PAGE_SIZE); ++ err = PTR_ERR(seq); ++ if (IS_ERR(seq)) ++ goto out_unlock; ++ ++ name = (void *)attr->name; ++ cattr = sysaufs_si_attrs; ++ while (*cattr) { ++ if (!strcmp(name, (*cattr)->name)) { ++ err = container_of(*cattr, struct sysaufs_si_attr, attr) ++ ->show(seq, sb); ++ goto out_seq; ++ } ++ cattr++; ++ } ++ ++ if (!strncmp(name, SysaufsBrid_PREFIX, ++ sizeof(SysaufsBrid_PREFIX) - 1)) { ++ idx = AuBrSysfs_BRID; ++ name += sizeof(SysaufsBrid_PREFIX) - 1; ++ } else if (!strncmp(name, SysaufsBr_PREFIX, ++ sizeof(SysaufsBr_PREFIX) - 1)) { ++ idx = AuBrSysfs_BR; ++ name += sizeof(SysaufsBr_PREFIX) - 1; ++ } else ++ BUG(); ++ ++ err = kstrtol(name, 10, &l); ++ if (!err) { ++ bbot = au_sbbot(sb); ++ if (l <= bbot) ++ err = sysaufs_si_br(seq, sb, (aufs_bindex_t)l, idx); ++ else ++ err = -ENOENT; ++ } ++ ++out_seq: ++ if (!err) { ++ err = seq->count; ++ /* sysfs limit */ ++ if (unlikely(err == PAGE_SIZE)) ++ err = -EFBIG; ++ } ++ au_kfree_rcu(seq); ++out_unlock: ++ si_read_unlock(sb); ++out: ++ return err; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++static int au_brinfo(struct super_block *sb, union aufs_brinfo __user *arg) ++{ ++ int err; ++ int16_t brid; ++ aufs_bindex_t bindex, bbot; ++ size_t sz; ++ char *buf; ++ struct seq_file *seq; ++ struct au_branch *br; ++ ++ si_read_lock(sb, AuLock_FLUSH); ++ bbot = au_sbbot(sb); ++ err = bbot + 1; ++ if (!arg) ++ goto out; ++ ++ err = -ENOMEM; ++ buf = (void *)__get_free_page(GFP_NOFS); ++ if (unlikely(!buf)) ++ goto out; ++ ++ seq = au_seq(buf, PAGE_SIZE); ++ err = PTR_ERR(seq); ++ if (IS_ERR(seq)) ++ goto out_buf; ++ ++ sz = sizeof(*arg) - offsetof(union aufs_brinfo, path); ++ for (bindex = 0; bindex <= bbot; bindex++, arg++) { ++ /* VERIFY_WRITE */ ++ err = !access_ok(arg, sizeof(*arg)); ++ if (unlikely(err)) ++ break; ++ ++ br = au_sbr(sb, bindex); ++ brid = br->br_id; ++ BUILD_BUG_ON(sizeof(brid) != sizeof(arg->id)); ++ err = __put_user(brid, &arg->id); ++ if (unlikely(err)) ++ break; ++ ++ BUILD_BUG_ON(sizeof(br->br_perm) != sizeof(arg->perm)); ++ err = __put_user(br->br_perm, &arg->perm); ++ if (unlikely(err)) ++ break; ++ ++ err = au_seq_path(seq, &br->br_path); ++ if (unlikely(err)) ++ break; ++ seq_putc(seq, '\0'); ++ if (!seq_has_overflowed(seq)) { ++ err = copy_to_user(arg->path, seq->buf, seq->count); ++ seq->count = 0; ++ if (unlikely(err)) ++ break; ++ } else { ++ err = -E2BIG; ++ goto out_seq; ++ } ++ } ++ if (unlikely(err)) ++ err = -EFAULT; ++ ++out_seq: ++ au_kfree_rcu(seq); ++out_buf: ++ free_page((unsigned long)buf); ++out: ++ si_read_unlock(sb); ++ return err; ++} ++ ++long au_brinfo_ioctl(struct file *file, unsigned long arg) ++{ ++ return au_brinfo(file->f_path.dentry->d_sb, (void __user *)arg); ++} ++ ++#ifdef CONFIG_COMPAT ++long au_brinfo_compat_ioctl(struct file *file, unsigned long arg) ++{ ++ return au_brinfo(file->f_path.dentry->d_sb, compat_ptr(arg)); ++} ++#endif ++ ++/* ---------------------------------------------------------------------- */ ++ ++void sysaufs_br_init(struct au_branch *br) ++{ ++ int i; ++ struct au_brsysfs *br_sysfs; ++ struct attribute *attr; ++ ++ br_sysfs = br->br_sysfs; ++ for (i = 0; i < ARRAY_SIZE(br->br_sysfs); i++) { ++ attr = &br_sysfs->attr; ++ sysfs_attr_init(attr); ++ attr->name = br_sysfs->name; ++ attr->mode = 0444; ++ br_sysfs++; ++ } ++} ++ ++void sysaufs_brs_del(struct super_block *sb, aufs_bindex_t bindex) ++{ ++ struct au_branch *br; ++ struct kobject *kobj; ++ struct au_brsysfs *br_sysfs; ++ int i; ++ aufs_bindex_t bbot; ++ ++ if (!sysaufs_brs) ++ return; ++ ++ kobj = &au_sbi(sb)->si_kobj; ++ bbot = au_sbbot(sb); ++ for (; bindex <= bbot; bindex++) { ++ br = au_sbr(sb, bindex); ++ br_sysfs = br->br_sysfs; ++ for (i = 0; i < ARRAY_SIZE(br->br_sysfs); i++) { ++ sysfs_remove_file(kobj, &br_sysfs->attr); ++ br_sysfs++; ++ } ++ } ++} ++ ++void sysaufs_brs_add(struct super_block *sb, aufs_bindex_t bindex) ++{ ++ int err, i; ++ aufs_bindex_t bbot; ++ struct kobject *kobj; ++ struct au_branch *br; ++ struct au_brsysfs *br_sysfs; ++ ++ if (!sysaufs_brs) ++ return; ++ ++ kobj = &au_sbi(sb)->si_kobj; ++ bbot = au_sbbot(sb); ++ for (; bindex <= bbot; bindex++) { ++ br = au_sbr(sb, bindex); ++ br_sysfs = br->br_sysfs; ++ snprintf(br_sysfs[AuBrSysfs_BR].name, sizeof(br_sysfs->name), ++ SysaufsBr_PREFIX "%d", bindex); ++ snprintf(br_sysfs[AuBrSysfs_BRID].name, sizeof(br_sysfs->name), ++ SysaufsBrid_PREFIX "%d", bindex); ++ for (i = 0; i < ARRAY_SIZE(br->br_sysfs); i++) { ++ err = sysfs_create_file(kobj, &br_sysfs->attr); ++ if (unlikely(err)) ++ pr_warn("failed %s under sysfs(%d)\n", ++ br_sysfs->name, err); ++ br_sysfs++; ++ } ++ } ++} +diff -Naur linux-5.15/fs/aufs/sysrq.c aufs5-linux-aufs5.15/fs/aufs/sysrq.c +--- linux-5.15/fs/aufs/sysrq.c 1970-01-01 03:00:00.000000000 +0300 ++++ aufs5-linux-aufs5.15/fs/aufs/sysrq.c 2022-03-07 13:48:09.000000000 +0300 +@@ -0,0 +1,136 @@ ++// SPDX-License-Identifier: GPL-2.0 ++/* ++ * Copyright (C) 2005-2021 Junjiro R. Okajima ++ */ ++ ++/* ++ * magic sysrq handler ++ */ ++ ++/* #include */ ++#include ++#include "aufs.h" ++ ++/* ---------------------------------------------------------------------- */ ++ ++static void sysrq_sb(struct super_block *sb) ++{ ++ char *plevel; ++ struct au_sbinfo *sbinfo; ++ struct file *file; ++ struct hlist_bl_head *files; ++ struct hlist_bl_node *pos; ++ struct au_finfo *finfo; ++ struct inode *i; ++ ++ plevel = au_plevel; ++ au_plevel = KERN_WARNING; ++ ++ /* since we define pr_fmt, call printk directly */ ++#define pr(str) printk(KERN_WARNING AUFS_NAME ": " str) ++ ++ sbinfo = au_sbi(sb); ++ printk(KERN_WARNING "si=%lx\n", sysaufs_si_id(sbinfo)); ++ pr("superblock\n"); ++ au_dpri_sb(sb); ++ ++#if 0 /* reserved */ ++ do { ++ int err, i, j, ndentry; ++ struct au_dcsub_pages dpages; ++ struct au_dpage *dpage; ++ ++ err = au_dpages_init(&dpages, GFP_ATOMIC); ++ if (unlikely(err)) ++ break; ++ err = au_dcsub_pages(&dpages, sb->s_root, NULL, NULL); ++ if (!err) ++ for (i = 0; i < dpages.ndpage; i++) { ++ dpage = dpages.dpages + i; ++ ndentry = dpage->ndentry; ++ for (j = 0; j < ndentry; j++) ++ au_dpri_dentry(dpage->dentries[j]); ++ } ++ au_dpages_free(&dpages); ++ } while (0); ++#endif ++ ++ pr("isolated inode\n"); ++ spin_lock(&sb->s_inode_list_lock); ++ list_for_each_entry(i, &sb->s_inodes, i_sb_list) { ++ spin_lock(&i->i_lock); ++ if (hlist_empty(&i->i_dentry)) ++ au_dpri_inode(i); ++ spin_unlock(&i->i_lock); ++ } ++ spin_unlock(&sb->s_inode_list_lock); ++ ++ pr("files\n"); ++ files = &au_sbi(sb)->si_files; ++ hlist_bl_lock(files); ++ hlist_bl_for_each_entry(finfo, pos, files, fi_hlist) { ++ umode_t mode; ++ ++ file = finfo->fi_file; ++ mode = file_inode(file)->i_mode; ++ if (!special_file(mode)) ++ au_dpri_file(file); ++ } ++ hlist_bl_unlock(files); ++ pr("done\n"); ++ ++#undef pr ++ au_plevel = plevel; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++/* module parameter */ ++static char *aufs_sysrq_key = "a"; ++module_param_named(sysrq, aufs_sysrq_key, charp, 0444); ++MODULE_PARM_DESC(sysrq, "MagicSysRq key for " AUFS_NAME); ++ ++static void au_sysrq(int key __maybe_unused) ++{ ++ struct au_sbinfo *sbinfo; ++ struct hlist_bl_node *pos; ++ ++ lockdep_off(); ++ au_sbilist_lock(); ++ hlist_bl_for_each_entry(sbinfo, pos, &au_sbilist, si_list) ++ sysrq_sb(sbinfo->si_sb); ++ au_sbilist_unlock(); ++ lockdep_on(); ++} ++ ++static struct sysrq_key_op au_sysrq_op = { ++ .handler = au_sysrq, ++ .help_msg = "Aufs", ++ .action_msg = "Aufs", ++ .enable_mask = SYSRQ_ENABLE_DUMP ++}; ++ ++/* ---------------------------------------------------------------------- */ ++ ++int __init au_sysrq_init(void) ++{ ++ int err; ++ char key; ++ ++ err = -1; ++ key = *aufs_sysrq_key; ++ if ('a' <= key && key <= 'z') ++ err = register_sysrq_key(key, &au_sysrq_op); ++ if (unlikely(err)) ++ pr_err("err %d, sysrq=%c\n", err, key); ++ return err; ++} ++ ++void au_sysrq_fin(void) ++{ ++ int err; ++ ++ err = unregister_sysrq_key(*aufs_sysrq_key, &au_sysrq_op); ++ if (unlikely(err)) ++ pr_err("err %d (ignored)\n", err); ++} +diff -Naur linux-5.15/fs/aufs/vdir.c aufs5-linux-aufs5.15/fs/aufs/vdir.c +--- linux-5.15/fs/aufs/vdir.c 1970-01-01 03:00:00.000000000 +0300 ++++ aufs5-linux-aufs5.15/fs/aufs/vdir.c 2022-03-07 13:48:09.000000000 +0300 +@@ -0,0 +1,883 @@ ++// SPDX-License-Identifier: GPL-2.0 ++/* ++ * Copyright (C) 2005-2021 Junjiro R. Okajima ++ */ ++ ++/* ++ * virtual or vertical directory ++ */ ++ ++#include ++#include "aufs.h" ++ ++static unsigned int calc_size(int nlen) ++{ ++ return ALIGN(sizeof(struct au_vdir_de) + nlen, sizeof(ino_t)); ++} ++ ++static int set_deblk_end(union au_vdir_deblk_p *p, ++ union au_vdir_deblk_p *deblk_end) ++{ ++ if (calc_size(0) <= deblk_end->deblk - p->deblk) { ++ p->de->de_str.len = 0; ++ /* smp_mb(); */ ++ return 0; ++ } ++ return -1; /* error */ ++} ++ ++/* returns true or false */ ++static int is_deblk_end(union au_vdir_deblk_p *p, ++ union au_vdir_deblk_p *deblk_end) ++{ ++ if (calc_size(0) <= deblk_end->deblk - p->deblk) ++ return !p->de->de_str.len; ++ return 1; ++} ++ ++static unsigned char *last_deblk(struct au_vdir *vdir) ++{ ++ return vdir->vd_deblk[vdir->vd_nblk - 1]; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++/* estimate the appropriate size for name hash table */ ++unsigned int au_rdhash_est(loff_t sz) ++{ ++ unsigned int n; ++ ++ n = UINT_MAX; ++ sz >>= 10; ++ if (sz < n) ++ n = sz; ++ if (sz < AUFS_RDHASH_DEF) ++ n = AUFS_RDHASH_DEF; ++ /* pr_info("n %u\n", n); */ ++ return n; ++} ++ ++/* ++ * the allocated memory has to be freed by ++ * au_nhash_wh_free() or au_nhash_de_free(). ++ */ ++int au_nhash_alloc(struct au_nhash *nhash, unsigned int num_hash, gfp_t gfp) ++{ ++ struct hlist_head *head; ++ unsigned int u; ++ size_t sz; ++ ++ sz = sizeof(*nhash->nh_head) * num_hash; ++ head = kmalloc(sz, gfp); ++ if (head) { ++ nhash->nh_num = num_hash; ++ nhash->nh_head = head; ++ for (u = 0; u < num_hash; u++) ++ INIT_HLIST_HEAD(head++); ++ return 0; /* success */ ++ } ++ ++ return -ENOMEM; ++} ++ ++static void nhash_count(struct hlist_head *head) ++{ ++#if 0 /* debugging */ ++ unsigned long n; ++ struct hlist_node *pos; ++ ++ n = 0; ++ hlist_for_each(pos, head) ++ n++; ++ pr_info("%lu\n", n); ++#endif ++} ++ ++static void au_nhash_wh_do_free(struct hlist_head *head) ++{ ++ struct au_vdir_wh *pos; ++ struct hlist_node *node; ++ ++ hlist_for_each_entry_safe(pos, node, head, wh_hash) ++ au_kfree_rcu(pos); ++} ++ ++static void au_nhash_de_do_free(struct hlist_head *head) ++{ ++ struct au_vdir_dehstr *pos; ++ struct hlist_node *node; ++ ++ hlist_for_each_entry_safe(pos, node, head, hash) ++ au_cache_free_vdir_dehstr(pos); ++} ++ ++static void au_nhash_do_free(struct au_nhash *nhash, ++ void (*free)(struct hlist_head *head)) ++{ ++ unsigned int n; ++ struct hlist_head *head; ++ ++ n = nhash->nh_num; ++ if (!n) ++ return; ++ ++ head = nhash->nh_head; ++ while (n-- > 0) { ++ nhash_count(head); ++ free(head++); ++ } ++ au_kfree_try_rcu(nhash->nh_head); ++} ++ ++void au_nhash_wh_free(struct au_nhash *whlist) ++{ ++ au_nhash_do_free(whlist, au_nhash_wh_do_free); ++} ++ ++static void au_nhash_de_free(struct au_nhash *delist) ++{ ++ au_nhash_do_free(delist, au_nhash_de_do_free); ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++int au_nhash_test_longer_wh(struct au_nhash *whlist, aufs_bindex_t btgt, ++ int limit) ++{ ++ int num; ++ unsigned int u, n; ++ struct hlist_head *head; ++ struct au_vdir_wh *pos; ++ ++ num = 0; ++ n = whlist->nh_num; ++ head = whlist->nh_head; ++ for (u = 0; u < n; u++, head++) ++ hlist_for_each_entry(pos, head, wh_hash) ++ if (pos->wh_bindex == btgt && ++num > limit) ++ return 1; ++ return 0; ++} ++ ++static struct hlist_head *au_name_hash(struct au_nhash *nhash, ++ unsigned char *name, ++ unsigned int len) ++{ ++ unsigned int v; ++ /* const unsigned int magic_bit = 12; */ ++ ++ AuDebugOn(!nhash->nh_num || !nhash->nh_head); ++ ++ v = 0; ++ if (len > 8) ++ len = 8; ++ while (len--) ++ v += *name++; ++ /* v = hash_long(v, magic_bit); */ ++ v %= nhash->nh_num; ++ return nhash->nh_head + v; ++} ++ ++static int au_nhash_test_name(struct au_vdir_destr *str, const char *name, ++ int nlen) ++{ ++ return str->len == nlen && !memcmp(str->name, name, nlen); ++} ++ ++/* returns found or not */ ++int au_nhash_test_known_wh(struct au_nhash *whlist, char *name, int nlen) ++{ ++ struct hlist_head *head; ++ struct au_vdir_wh *pos; ++ struct au_vdir_destr *str; ++ ++ head = au_name_hash(whlist, name, nlen); ++ hlist_for_each_entry(pos, head, wh_hash) { ++ str = &pos->wh_str; ++ AuDbg("%.*s\n", str->len, str->name); ++ if (au_nhash_test_name(str, name, nlen)) ++ return 1; ++ } ++ return 0; ++} ++ ++/* returns found(true) or not */ ++static int test_known(struct au_nhash *delist, char *name, int nlen) ++{ ++ struct hlist_head *head; ++ struct au_vdir_dehstr *pos; ++ struct au_vdir_destr *str; ++ ++ head = au_name_hash(delist, name, nlen); ++ hlist_for_each_entry(pos, head, hash) { ++ str = pos->str; ++ AuDbg("%.*s\n", str->len, str->name); ++ if (au_nhash_test_name(str, name, nlen)) ++ return 1; ++ } ++ return 0; ++} ++ ++static void au_shwh_init_wh(struct au_vdir_wh *wh, ino_t ino, ++ unsigned char d_type) ++{ ++#ifdef CONFIG_AUFS_SHWH ++ wh->wh_ino = ino; ++ wh->wh_type = d_type; ++#endif ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++int au_nhash_append_wh(struct au_nhash *whlist, char *name, int nlen, ino_t ino, ++ unsigned int d_type, aufs_bindex_t bindex, ++ unsigned char shwh) ++{ ++ int err; ++ struct au_vdir_destr *str; ++ struct au_vdir_wh *wh; ++ ++ AuDbg("%.*s\n", nlen, name); ++ AuDebugOn(!whlist->nh_num || !whlist->nh_head); ++ ++ err = -ENOMEM; ++ wh = kmalloc(sizeof(*wh) + nlen, GFP_NOFS); ++ if (unlikely(!wh)) ++ goto out; ++ ++ err = 0; ++ wh->wh_bindex = bindex; ++ if (shwh) ++ au_shwh_init_wh(wh, ino, d_type); ++ str = &wh->wh_str; ++ str->len = nlen; ++ memcpy(str->name, name, nlen); ++ hlist_add_head(&wh->wh_hash, au_name_hash(whlist, name, nlen)); ++ /* smp_mb(); */ ++ ++out: ++ return err; ++} ++ ++static int append_deblk(struct au_vdir *vdir) ++{ ++ int err; ++ unsigned long ul; ++ const unsigned int deblk_sz = vdir->vd_deblk_sz; ++ union au_vdir_deblk_p p, deblk_end; ++ unsigned char **o; ++ ++ err = -ENOMEM; ++ o = au_krealloc(vdir->vd_deblk, sizeof(*o) * (vdir->vd_nblk + 1), ++ GFP_NOFS, /*may_shrink*/0); ++ if (unlikely(!o)) ++ goto out; ++ ++ vdir->vd_deblk = o; ++ p.deblk = kmalloc(deblk_sz, GFP_NOFS); ++ if (p.deblk) { ++ ul = vdir->vd_nblk++; ++ vdir->vd_deblk[ul] = p.deblk; ++ vdir->vd_last.ul = ul; ++ vdir->vd_last.p.deblk = p.deblk; ++ deblk_end.deblk = p.deblk + deblk_sz; ++ err = set_deblk_end(&p, &deblk_end); ++ } ++ ++out: ++ return err; ++} ++ ++static int append_de(struct au_vdir *vdir, char *name, int nlen, ino_t ino, ++ unsigned int d_type, struct au_nhash *delist) ++{ ++ int err; ++ unsigned int sz; ++ const unsigned int deblk_sz = vdir->vd_deblk_sz; ++ union au_vdir_deblk_p p, *room, deblk_end; ++ struct au_vdir_dehstr *dehstr; ++ ++ p.deblk = last_deblk(vdir); ++ deblk_end.deblk = p.deblk + deblk_sz; ++ room = &vdir->vd_last.p; ++ AuDebugOn(room->deblk < p.deblk || deblk_end.deblk <= room->deblk ++ || !is_deblk_end(room, &deblk_end)); ++ ++ sz = calc_size(nlen); ++ if (unlikely(sz > deblk_end.deblk - room->deblk)) { ++ err = append_deblk(vdir); ++ if (unlikely(err)) ++ goto out; ++ ++ p.deblk = last_deblk(vdir); ++ deblk_end.deblk = p.deblk + deblk_sz; ++ /* smp_mb(); */ ++ AuDebugOn(room->deblk != p.deblk); ++ } ++ ++ err = -ENOMEM; ++ dehstr = au_cache_alloc_vdir_dehstr(); ++ if (unlikely(!dehstr)) ++ goto out; ++ ++ dehstr->str = &room->de->de_str; ++ hlist_add_head(&dehstr->hash, au_name_hash(delist, name, nlen)); ++ room->de->de_ino = ino; ++ room->de->de_type = d_type; ++ room->de->de_str.len = nlen; ++ memcpy(room->de->de_str.name, name, nlen); ++ ++ err = 0; ++ room->deblk += sz; ++ if (unlikely(set_deblk_end(room, &deblk_end))) ++ err = append_deblk(vdir); ++ /* smp_mb(); */ ++ ++out: ++ return err; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++void au_vdir_free(struct au_vdir *vdir) ++{ ++ unsigned char **deblk; ++ ++ deblk = vdir->vd_deblk; ++ while (vdir->vd_nblk--) ++ au_kfree_try_rcu(*deblk++); ++ au_kfree_try_rcu(vdir->vd_deblk); ++ au_cache_free_vdir(vdir); ++} ++ ++static struct au_vdir *alloc_vdir(struct file *file) ++{ ++ struct au_vdir *vdir; ++ struct super_block *sb; ++ int err; ++ ++ sb = file->f_path.dentry->d_sb; ++ SiMustAnyLock(sb); ++ ++ err = -ENOMEM; ++ vdir = au_cache_alloc_vdir(); ++ if (unlikely(!vdir)) ++ goto out; ++ ++ vdir->vd_deblk = kzalloc(sizeof(*vdir->vd_deblk), GFP_NOFS); ++ if (unlikely(!vdir->vd_deblk)) ++ goto out_free; ++ ++ vdir->vd_deblk_sz = au_sbi(sb)->si_rdblk; ++ if (!vdir->vd_deblk_sz) { ++ /* estimate the appropriate size for deblk */ ++ vdir->vd_deblk_sz = au_dir_size(file, /*dentry*/NULL); ++ /* pr_info("vd_deblk_sz %u\n", vdir->vd_deblk_sz); */ ++ } ++ vdir->vd_nblk = 0; ++ vdir->vd_version = 0; ++ vdir->vd_jiffy = 0; ++ err = append_deblk(vdir); ++ if (!err) ++ return vdir; /* success */ ++ ++ au_kfree_try_rcu(vdir->vd_deblk); ++ ++out_free: ++ au_cache_free_vdir(vdir); ++out: ++ vdir = ERR_PTR(err); ++ return vdir; ++} ++ ++static int reinit_vdir(struct au_vdir *vdir) ++{ ++ int err; ++ union au_vdir_deblk_p p, deblk_end; ++ ++ while (vdir->vd_nblk > 1) { ++ au_kfree_try_rcu(vdir->vd_deblk[vdir->vd_nblk - 1]); ++ /* vdir->vd_deblk[vdir->vd_nblk - 1] = NULL; */ ++ vdir->vd_nblk--; ++ } ++ p.deblk = vdir->vd_deblk[0]; ++ deblk_end.deblk = p.deblk + vdir->vd_deblk_sz; ++ err = set_deblk_end(&p, &deblk_end); ++ /* keep vd_dblk_sz */ ++ vdir->vd_last.ul = 0; ++ vdir->vd_last.p.deblk = vdir->vd_deblk[0]; ++ vdir->vd_version = 0; ++ vdir->vd_jiffy = 0; ++ /* smp_mb(); */ ++ return err; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++#define AuFillVdir_CALLED 1 ++#define AuFillVdir_WHABLE (1 << 1) ++#define AuFillVdir_SHWH (1 << 2) ++#define au_ftest_fillvdir(flags, name) ((flags) & AuFillVdir_##name) ++#define au_fset_fillvdir(flags, name) \ ++ do { (flags) |= AuFillVdir_##name; } while (0) ++#define au_fclr_fillvdir(flags, name) \ ++ do { (flags) &= ~AuFillVdir_##name; } while (0) ++ ++#ifndef CONFIG_AUFS_SHWH ++#undef AuFillVdir_SHWH ++#define AuFillVdir_SHWH 0 ++#endif ++ ++struct fillvdir_arg { ++ struct dir_context ctx; ++ struct file *file; ++ struct au_vdir *vdir; ++ struct au_nhash delist; ++ struct au_nhash whlist; ++ aufs_bindex_t bindex; ++ unsigned int flags; ++ int err; ++}; ++ ++static int fillvdir(struct dir_context *ctx, const char *__name, int nlen, ++ loff_t offset __maybe_unused, u64 h_ino, ++ unsigned int d_type) ++{ ++ struct fillvdir_arg *arg = container_of(ctx, struct fillvdir_arg, ctx); ++ char *name = (void *)__name; ++ struct super_block *sb; ++ ino_t ino; ++ const unsigned char shwh = !!au_ftest_fillvdir(arg->flags, SHWH); ++ ++ arg->err = 0; ++ sb = arg->file->f_path.dentry->d_sb; ++ au_fset_fillvdir(arg->flags, CALLED); ++ /* smp_mb(); */ ++ if (nlen <= AUFS_WH_PFX_LEN ++ || memcmp(name, AUFS_WH_PFX, AUFS_WH_PFX_LEN)) { ++ if (test_known(&arg->delist, name, nlen) ++ || au_nhash_test_known_wh(&arg->whlist, name, nlen)) ++ goto out; /* already exists or whiteouted */ ++ ++ arg->err = au_ino(sb, arg->bindex, h_ino, d_type, &ino); ++ if (!arg->err) { ++ if (unlikely(nlen > AUFS_MAX_NAMELEN)) ++ d_type = DT_UNKNOWN; ++ arg->err = append_de(arg->vdir, name, nlen, ino, ++ d_type, &arg->delist); ++ } ++ } else if (au_ftest_fillvdir(arg->flags, WHABLE)) { ++ name += AUFS_WH_PFX_LEN; ++ nlen -= AUFS_WH_PFX_LEN; ++ if (au_nhash_test_known_wh(&arg->whlist, name, nlen)) ++ goto out; /* already whiteouted */ ++ ++ ino = 0; /* just to suppress a warning */ ++ if (shwh) ++ arg->err = au_wh_ino(sb, arg->bindex, h_ino, d_type, ++ &ino); ++ if (!arg->err) { ++ if (nlen <= AUFS_MAX_NAMELEN + AUFS_WH_PFX_LEN) ++ d_type = DT_UNKNOWN; ++ arg->err = au_nhash_append_wh ++ (&arg->whlist, name, nlen, ino, d_type, ++ arg->bindex, shwh); ++ } ++ } ++ ++out: ++ if (!arg->err) ++ arg->vdir->vd_jiffy = jiffies; ++ /* smp_mb(); */ ++ AuTraceErr(arg->err); ++ return arg->err; ++} ++ ++static int au_handle_shwh(struct super_block *sb, struct au_vdir *vdir, ++ struct au_nhash *whlist, struct au_nhash *delist) ++{ ++#ifdef CONFIG_AUFS_SHWH ++ int err; ++ unsigned int nh, u; ++ struct hlist_head *head; ++ struct au_vdir_wh *pos; ++ struct hlist_node *n; ++ char *p, *o; ++ struct au_vdir_destr *destr; ++ ++ AuDebugOn(!au_opt_test(au_mntflags(sb), SHWH)); ++ ++ err = -ENOMEM; ++ o = p = (void *)__get_free_page(GFP_NOFS); ++ if (unlikely(!p)) ++ goto out; ++ ++ err = 0; ++ nh = whlist->nh_num; ++ memcpy(p, AUFS_WH_PFX, AUFS_WH_PFX_LEN); ++ p += AUFS_WH_PFX_LEN; ++ for (u = 0; u < nh; u++) { ++ head = whlist->nh_head + u; ++ hlist_for_each_entry_safe(pos, n, head, wh_hash) { ++ destr = &pos->wh_str; ++ memcpy(p, destr->name, destr->len); ++ err = append_de(vdir, o, destr->len + AUFS_WH_PFX_LEN, ++ pos->wh_ino, pos->wh_type, delist); ++ if (unlikely(err)) ++ break; ++ } ++ } ++ ++ free_page((unsigned long)o); ++ ++out: ++ AuTraceErr(err); ++ return err; ++#else ++ return 0; ++#endif ++} ++ ++static int au_do_read_vdir(struct fillvdir_arg *arg) ++{ ++ int err; ++ unsigned int rdhash; ++ loff_t offset; ++ aufs_bindex_t bbot, bindex, btop; ++ unsigned char shwh; ++ struct file *hf, *file; ++ struct super_block *sb; ++ ++ file = arg->file; ++ sb = file->f_path.dentry->d_sb; ++ SiMustAnyLock(sb); ++ ++ rdhash = au_sbi(sb)->si_rdhash; ++ if (!rdhash) ++ rdhash = au_rdhash_est(au_dir_size(file, /*dentry*/NULL)); ++ err = au_nhash_alloc(&arg->delist, rdhash, GFP_NOFS); ++ if (unlikely(err)) ++ goto out; ++ err = au_nhash_alloc(&arg->whlist, rdhash, GFP_NOFS); ++ if (unlikely(err)) ++ goto out_delist; ++ ++ err = 0; ++ arg->flags = 0; ++ shwh = 0; ++ if (au_opt_test(au_mntflags(sb), SHWH)) { ++ shwh = 1; ++ au_fset_fillvdir(arg->flags, SHWH); ++ } ++ btop = au_fbtop(file); ++ bbot = au_fbbot_dir(file); ++ for (bindex = btop; !err && bindex <= bbot; bindex++) { ++ hf = au_hf_dir(file, bindex); ++ if (!hf) ++ continue; ++ ++ offset = vfsub_llseek(hf, 0, SEEK_SET); ++ err = offset; ++ if (unlikely(offset)) ++ break; ++ ++ arg->bindex = bindex; ++ au_fclr_fillvdir(arg->flags, WHABLE); ++ if (shwh ++ || (bindex != bbot ++ && au_br_whable(au_sbr_perm(sb, bindex)))) ++ au_fset_fillvdir(arg->flags, WHABLE); ++ do { ++ arg->err = 0; ++ au_fclr_fillvdir(arg->flags, CALLED); ++ /* smp_mb(); */ ++ err = vfsub_iterate_dir(hf, &arg->ctx); ++ if (err >= 0) ++ err = arg->err; ++ } while (!err && au_ftest_fillvdir(arg->flags, CALLED)); ++ ++ /* ++ * dir_relax() may be good for concurrency, but aufs should not ++ * use it since it will cause a lockdep problem. ++ */ ++ } ++ ++ if (!err && shwh) ++ err = au_handle_shwh(sb, arg->vdir, &arg->whlist, &arg->delist); ++ ++ au_nhash_wh_free(&arg->whlist); ++ ++out_delist: ++ au_nhash_de_free(&arg->delist); ++out: ++ return err; ++} ++ ++static int read_vdir(struct file *file, int may_read) ++{ ++ int err; ++ unsigned long expire; ++ unsigned char do_read; ++ struct fillvdir_arg arg = { ++ .ctx = { ++ .actor = fillvdir ++ } ++ }; ++ struct inode *inode; ++ struct au_vdir *vdir, *allocated; ++ ++ err = 0; ++ inode = file_inode(file); ++ IMustLock(inode); ++ IiMustWriteLock(inode); ++ SiMustAnyLock(inode->i_sb); ++ ++ allocated = NULL; ++ do_read = 0; ++ expire = au_sbi(inode->i_sb)->si_rdcache; ++ vdir = au_ivdir(inode); ++ if (!vdir) { ++ do_read = 1; ++ vdir = alloc_vdir(file); ++ err = PTR_ERR(vdir); ++ if (IS_ERR(vdir)) ++ goto out; ++ err = 0; ++ allocated = vdir; ++ } else if (may_read ++ && (!inode_eq_iversion(inode, vdir->vd_version) ++ || time_after(jiffies, vdir->vd_jiffy + expire))) { ++ do_read = 1; ++ err = reinit_vdir(vdir); ++ if (unlikely(err)) ++ goto out; ++ } ++ ++ if (!do_read) ++ return 0; /* success */ ++ ++ arg.file = file; ++ arg.vdir = vdir; ++ err = au_do_read_vdir(&arg); ++ if (!err) { ++ /* file->f_pos = 0; */ /* todo: ctx->pos? */ ++ vdir->vd_version = inode_query_iversion(inode); ++ vdir->vd_last.ul = 0; ++ vdir->vd_last.p.deblk = vdir->vd_deblk[0]; ++ if (allocated) ++ au_set_ivdir(inode, allocated); ++ } else if (allocated) ++ au_vdir_free(allocated); ++ ++out: ++ return err; ++} ++ ++static int copy_vdir(struct au_vdir *tgt, struct au_vdir *src) ++{ ++ int err, rerr; ++ unsigned long ul, n; ++ const unsigned int deblk_sz = src->vd_deblk_sz; ++ ++ AuDebugOn(tgt->vd_nblk != 1); ++ ++ err = -ENOMEM; ++ if (tgt->vd_nblk < src->vd_nblk) { ++ unsigned char **p; ++ ++ p = au_krealloc(tgt->vd_deblk, sizeof(*p) * src->vd_nblk, ++ GFP_NOFS, /*may_shrink*/0); ++ if (unlikely(!p)) ++ goto out; ++ tgt->vd_deblk = p; ++ } ++ ++ if (tgt->vd_deblk_sz != deblk_sz) { ++ unsigned char *p; ++ ++ tgt->vd_deblk_sz = deblk_sz; ++ p = au_krealloc(tgt->vd_deblk[0], deblk_sz, GFP_NOFS, ++ /*may_shrink*/1); ++ if (unlikely(!p)) ++ goto out; ++ tgt->vd_deblk[0] = p; ++ } ++ memcpy(tgt->vd_deblk[0], src->vd_deblk[0], deblk_sz); ++ tgt->vd_version = src->vd_version; ++ tgt->vd_jiffy = src->vd_jiffy; ++ ++ n = src->vd_nblk; ++ for (ul = 1; ul < n; ul++) { ++ tgt->vd_deblk[ul] = kmemdup(src->vd_deblk[ul], deblk_sz, ++ GFP_NOFS); ++ if (unlikely(!tgt->vd_deblk[ul])) ++ goto out; ++ tgt->vd_nblk++; ++ } ++ tgt->vd_nblk = n; ++ tgt->vd_last.ul = tgt->vd_last.ul; ++ tgt->vd_last.p.deblk = tgt->vd_deblk[tgt->vd_last.ul]; ++ tgt->vd_last.p.deblk += src->vd_last.p.deblk ++ - src->vd_deblk[src->vd_last.ul]; ++ /* smp_mb(); */ ++ return 0; /* success */ ++ ++out: ++ rerr = reinit_vdir(tgt); ++ BUG_ON(rerr); ++ return err; ++} ++ ++int au_vdir_init(struct file *file) ++{ ++ int err; ++ struct inode *inode; ++ struct au_vdir *vdir_cache, *allocated; ++ ++ /* test file->f_pos here instead of ctx->pos */ ++ err = read_vdir(file, !file->f_pos); ++ if (unlikely(err)) ++ goto out; ++ ++ allocated = NULL; ++ vdir_cache = au_fvdir_cache(file); ++ if (!vdir_cache) { ++ vdir_cache = alloc_vdir(file); ++ err = PTR_ERR(vdir_cache); ++ if (IS_ERR(vdir_cache)) ++ goto out; ++ allocated = vdir_cache; ++ } else if (!file->f_pos && vdir_cache->vd_version != file->f_version) { ++ /* test file->f_pos here instead of ctx->pos */ ++ err = reinit_vdir(vdir_cache); ++ if (unlikely(err)) ++ goto out; ++ } else ++ return 0; /* success */ ++ ++ inode = file_inode(file); ++ err = copy_vdir(vdir_cache, au_ivdir(inode)); ++ if (!err) { ++ file->f_version = inode_query_iversion(inode); ++ if (allocated) ++ au_set_fvdir_cache(file, allocated); ++ } else if (allocated) ++ au_vdir_free(allocated); ++ ++out: ++ return err; ++} ++ ++static loff_t calc_offset(struct au_vdir *vdir) ++{ ++ loff_t offset; ++ union au_vdir_deblk_p p; ++ ++ p.deblk = vdir->vd_deblk[vdir->vd_last.ul]; ++ offset = vdir->vd_last.p.deblk - p.deblk; ++ offset += vdir->vd_deblk_sz * vdir->vd_last.ul; ++ return offset; ++} ++ ++/* returns true or false */ ++static int seek_vdir(struct file *file, struct dir_context *ctx) ++{ ++ int valid; ++ unsigned int deblk_sz; ++ unsigned long ul, n; ++ loff_t offset; ++ union au_vdir_deblk_p p, deblk_end; ++ struct au_vdir *vdir_cache; ++ ++ valid = 1; ++ vdir_cache = au_fvdir_cache(file); ++ offset = calc_offset(vdir_cache); ++ AuDbg("offset %lld\n", offset); ++ if (ctx->pos == offset) ++ goto out; ++ ++ vdir_cache->vd_last.ul = 0; ++ vdir_cache->vd_last.p.deblk = vdir_cache->vd_deblk[0]; ++ if (!ctx->pos) ++ goto out; ++ ++ valid = 0; ++ deblk_sz = vdir_cache->vd_deblk_sz; ++ ul = div64_u64(ctx->pos, deblk_sz); ++ AuDbg("ul %lu\n", ul); ++ if (ul >= vdir_cache->vd_nblk) ++ goto out; ++ ++ n = vdir_cache->vd_nblk; ++ for (; ul < n; ul++) { ++ p.deblk = vdir_cache->vd_deblk[ul]; ++ deblk_end.deblk = p.deblk + deblk_sz; ++ offset = ul; ++ offset *= deblk_sz; ++ while (!is_deblk_end(&p, &deblk_end) && offset < ctx->pos) { ++ unsigned int l; ++ ++ l = calc_size(p.de->de_str.len); ++ offset += l; ++ p.deblk += l; ++ } ++ if (!is_deblk_end(&p, &deblk_end)) { ++ valid = 1; ++ vdir_cache->vd_last.ul = ul; ++ vdir_cache->vd_last.p = p; ++ break; ++ } ++ } ++ ++out: ++ /* smp_mb(); */ ++ if (!valid) ++ AuDbg("valid %d\n", !valid); ++ return valid; ++} ++ ++int au_vdir_fill_de(struct file *file, struct dir_context *ctx) ++{ ++ unsigned int l, deblk_sz; ++ union au_vdir_deblk_p deblk_end; ++ struct au_vdir *vdir_cache; ++ struct au_vdir_de *de; ++ ++ if (!seek_vdir(file, ctx)) ++ return 0; ++ ++ vdir_cache = au_fvdir_cache(file); ++ deblk_sz = vdir_cache->vd_deblk_sz; ++ while (1) { ++ deblk_end.deblk = vdir_cache->vd_deblk[vdir_cache->vd_last.ul]; ++ deblk_end.deblk += deblk_sz; ++ while (!is_deblk_end(&vdir_cache->vd_last.p, &deblk_end)) { ++ de = vdir_cache->vd_last.p.de; ++ AuDbg("%.*s, off%lld, i%lu, dt%d\n", ++ de->de_str.len, de->de_str.name, ctx->pos, ++ (unsigned long)de->de_ino, de->de_type); ++ if (unlikely(!dir_emit(ctx, de->de_str.name, ++ de->de_str.len, de->de_ino, ++ de->de_type))) { ++ /* todo: ignore the error caused by udba? */ ++ /* return err; */ ++ return 0; ++ } ++ ++ l = calc_size(de->de_str.len); ++ vdir_cache->vd_last.p.deblk += l; ++ ctx->pos += l; ++ } ++ if (vdir_cache->vd_last.ul < vdir_cache->vd_nblk - 1) { ++ vdir_cache->vd_last.ul++; ++ vdir_cache->vd_last.p.deblk ++ = vdir_cache->vd_deblk[vdir_cache->vd_last.ul]; ++ ctx->pos = deblk_sz * vdir_cache->vd_last.ul; ++ continue; ++ } ++ break; ++ } ++ ++ /* smp_mb(); */ ++ return 0; ++} +diff -Naur linux-5.15/fs/aufs/vfsub.c aufs5-linux-aufs5.15/fs/aufs/vfsub.c +--- linux-5.15/fs/aufs/vfsub.c 1970-01-01 03:00:00.000000000 +0300 ++++ aufs5-linux-aufs5.15/fs/aufs/vfsub.c 2022-03-07 13:48:09.000000000 +0300 +@@ -0,0 +1,905 @@ ++// SPDX-License-Identifier: GPL-2.0 ++/* ++ * Copyright (C) 2005-2021 Junjiro R. Okajima ++ */ ++ ++/* ++ * sub-routines for VFS ++ */ ++ ++#include ++#include ++#include ++#include ++#include "aufs.h" ++ ++#ifdef CONFIG_AUFS_BR_FUSE ++int vfsub_test_mntns(struct vfsmount *mnt, struct super_block *h_sb) ++{ ++ if (!au_test_fuse(h_sb) || !au_userns) ++ return 0; ++ ++ return is_current_mnt_ns(mnt) ? 0 : -EACCES; ++} ++#endif ++ ++int vfsub_sync_filesystem(struct super_block *h_sb, int wait) ++{ ++ int err; ++ ++ lockdep_off(); ++ down_read(&h_sb->s_umount); ++ err = __sync_filesystem(h_sb, wait); ++ up_read(&h_sb->s_umount); ++ lockdep_on(); ++ ++ return err; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++int vfsub_update_h_iattr(struct path *h_path, int *did) ++{ ++ int err; ++ struct kstat st; ++ struct super_block *h_sb; ++ ++ /* ++ * Always needs h_path->mnt for LSM or FUSE branch. ++ */ ++ AuDebugOn(!h_path->mnt); ++ ++ /* for remote fs, leave work for its getattr or d_revalidate */ ++ /* for bad i_attr fs, handle them in aufs_getattr() */ ++ /* still some fs may acquire i_mutex. we need to skip them */ ++ err = 0; ++ if (!did) ++ did = &err; ++ h_sb = h_path->dentry->d_sb; ++ *did = (!au_test_fs_remote(h_sb) && au_test_fs_refresh_iattr(h_sb)); ++ if (*did) ++ err = vfsub_getattr(h_path, &st); ++ ++ return err; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++struct file *vfsub_dentry_open(struct path *path, int flags) ++{ ++ return dentry_open(path, flags /* | __FMODE_NONOTIFY */, ++ current_cred()); ++} ++ ++struct file *vfsub_filp_open(const char *path, int oflags, int mode) ++{ ++ struct file *file; ++ ++ lockdep_off(); ++ file = filp_open(path, ++ oflags /* | __FMODE_NONOTIFY */, ++ mode); ++ lockdep_on(); ++ if (IS_ERR(file)) ++ goto out; ++ vfsub_update_h_iattr(&file->f_path, /*did*/NULL); /*ignore*/ ++ ++out: ++ return file; ++} ++ ++/* ++ * Ideally this function should call VFS:do_last() in order to keep all its ++ * checkings. But it is very hard for aufs to regenerate several VFS internal ++ * structure such as nameidata. This is a second (or third) best approach. ++ * cf. linux/fs/namei.c:do_last(), lookup_open() and atomic_open(). ++ */ ++int vfsub_atomic_open(struct inode *dir, struct dentry *dentry, ++ struct vfsub_aopen_args *args) ++{ ++ int err; ++ struct au_branch *br = args->br; ++ struct file *file = args->file; ++ /* copied from linux/fs/namei.c:atomic_open() */ ++ struct dentry *const DENTRY_NOT_SET = (void *)-1UL; ++ ++ IMustLock(dir); ++ AuDebugOn(!dir->i_op->atomic_open); ++ ++ err = au_br_test_oflag(args->open_flag, br); ++ if (unlikely(err)) ++ goto out; ++ ++ au_lcnt_inc(&br->br_nfiles); ++ file->f_path.dentry = DENTRY_NOT_SET; ++ file->f_path.mnt = au_br_mnt(br); ++ AuDbg("%ps\n", dir->i_op->atomic_open); ++ err = dir->i_op->atomic_open(dir, dentry, file, args->open_flag, ++ args->create_mode); ++ if (unlikely(err < 0)) { ++ au_lcnt_dec(&br->br_nfiles); ++ goto out; ++ } ++ ++ /* temporary workaround for nfsv4 branch */ ++ if (au_test_nfs(dir->i_sb)) ++ nfs_mark_for_revalidate(dir); ++ ++ if (file->f_mode & FMODE_CREATED) ++ fsnotify_create(dir, dentry); ++ if (!(file->f_mode & FMODE_OPENED)) { ++ au_lcnt_dec(&br->br_nfiles); ++ goto out; ++ } ++ ++ /* todo: call VFS:may_open() here */ ++ /* todo: ima_file_check() too? */ ++ if (!err && (args->open_flag & __FMODE_EXEC)) ++ err = deny_write_access(file); ++ if (!err) ++ fsnotify_open(file); ++ else ++ au_lcnt_dec(&br->br_nfiles); ++ /* note that the file is created and still opened */ ++ ++out: ++ return err; ++} ++ ++int vfsub_kern_path(const char *name, unsigned int flags, struct path *path) ++{ ++ int err; ++ ++ err = kern_path(name, flags, path); ++ if (!err && d_is_positive(path->dentry)) ++ vfsub_update_h_iattr(path, /*did*/NULL); /*ignore*/ ++ return err; ++} ++ ++struct dentry *vfsub_lookup_one_len_unlocked(const char *name, ++ struct path *ppath, int len) ++{ ++ struct path path; ++ ++ path.dentry = lookup_one_len_unlocked(name, ppath->dentry, len); ++ if (IS_ERR(path.dentry)) ++ goto out; ++ if (d_is_positive(path.dentry)) { ++ path.mnt = ppath->mnt; ++ vfsub_update_h_iattr(&path, /*did*/NULL); /*ignore*/ ++ } ++ ++out: ++ AuTraceErrPtr(path.dentry); ++ return path.dentry; ++} ++ ++struct dentry *vfsub_lookup_one_len(const char *name, struct path *ppath, ++ int len) ++{ ++ struct path path; ++ ++ /* VFS checks it too, but by WARN_ON_ONCE() */ ++ IMustLock(d_inode(ppath->dentry)); ++ ++ path.dentry = lookup_one_len(name, ppath->dentry, len); ++ if (IS_ERR(path.dentry)) ++ goto out; ++ if (d_is_positive(path.dentry)) { ++ path.mnt = ppath->mnt; ++ vfsub_update_h_iattr(&path, /*did*/NULL); /*ignore*/ ++ } ++ ++out: ++ AuTraceErrPtr(path.dentry); ++ return path.dentry; ++} ++ ++void vfsub_call_lkup_one(void *args) ++{ ++ struct vfsub_lkup_one_args *a = args; ++ *a->errp = vfsub_lkup_one(a->name, a->ppath); ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++struct dentry *vfsub_lock_rename(struct dentry *d1, struct au_hinode *hdir1, ++ struct dentry *d2, struct au_hinode *hdir2) ++{ ++ struct dentry *d; ++ ++ lockdep_off(); ++ d = lock_rename(d1, d2); ++ lockdep_on(); ++ au_hn_suspend(hdir1); ++ if (hdir1 != hdir2) ++ au_hn_suspend(hdir2); ++ ++ return d; ++} ++ ++void vfsub_unlock_rename(struct dentry *d1, struct au_hinode *hdir1, ++ struct dentry *d2, struct au_hinode *hdir2) ++{ ++ au_hn_resume(hdir1); ++ if (hdir1 != hdir2) ++ au_hn_resume(hdir2); ++ lockdep_off(); ++ unlock_rename(d1, d2); ++ lockdep_on(); ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++int vfsub_create(struct inode *dir, struct path *path, int mode, bool want_excl) ++{ ++ int err; ++ struct dentry *d; ++ struct user_namespace *userns; ++ ++ IMustLock(dir); ++ ++ d = path->dentry; ++ path->dentry = d->d_parent; ++ err = security_path_mknod(path, d, mode, 0); ++ path->dentry = d; ++ if (unlikely(err)) ++ goto out; ++ userns = mnt_user_ns(path->mnt); ++ ++ lockdep_off(); ++ err = vfs_create(userns, dir, path->dentry, mode, want_excl); ++ lockdep_on(); ++ if (!err) { ++ struct path tmp = *path; ++ int did; ++ ++ vfsub_update_h_iattr(&tmp, &did); ++ if (did) { ++ tmp.dentry = path->dentry->d_parent; ++ vfsub_update_h_iattr(&tmp, /*did*/NULL); ++ } ++ /*ignore*/ ++ } ++ ++out: ++ return err; ++} ++ ++int vfsub_symlink(struct inode *dir, struct path *path, const char *symname) ++{ ++ int err; ++ struct dentry *d; ++ struct user_namespace *userns; ++ ++ IMustLock(dir); ++ ++ d = path->dentry; ++ path->dentry = d->d_parent; ++ err = security_path_symlink(path, d, symname); ++ path->dentry = d; ++ if (unlikely(err)) ++ goto out; ++ userns = mnt_user_ns(path->mnt); ++ ++ lockdep_off(); ++ err = vfs_symlink(userns, dir, path->dentry, symname); ++ lockdep_on(); ++ if (!err) { ++ struct path tmp = *path; ++ int did; ++ ++ vfsub_update_h_iattr(&tmp, &did); ++ if (did) { ++ tmp.dentry = path->dentry->d_parent; ++ vfsub_update_h_iattr(&tmp, /*did*/NULL); ++ } ++ /*ignore*/ ++ } ++ ++out: ++ return err; ++} ++ ++int vfsub_mknod(struct inode *dir, struct path *path, int mode, dev_t dev) ++{ ++ int err; ++ struct dentry *d; ++ struct user_namespace *userns; ++ ++ IMustLock(dir); ++ ++ d = path->dentry; ++ path->dentry = d->d_parent; ++ err = security_path_mknod(path, d, mode, new_encode_dev(dev)); ++ path->dentry = d; ++ if (unlikely(err)) ++ goto out; ++ userns = mnt_user_ns(path->mnt); ++ ++ lockdep_off(); ++ err = vfs_mknod(userns, dir, path->dentry, mode, dev); ++ lockdep_on(); ++ if (!err) { ++ struct path tmp = *path; ++ int did; ++ ++ vfsub_update_h_iattr(&tmp, &did); ++ if (did) { ++ tmp.dentry = path->dentry->d_parent; ++ vfsub_update_h_iattr(&tmp, /*did*/NULL); ++ } ++ /*ignore*/ ++ } ++ ++out: ++ return err; ++} ++ ++static int au_test_nlink(struct inode *inode) ++{ ++ const unsigned int link_max = UINT_MAX >> 1; /* rough margin */ ++ ++ if (!au_test_fs_no_limit_nlink(inode->i_sb) ++ || inode->i_nlink < link_max) ++ return 0; ++ return -EMLINK; ++} ++ ++int vfsub_link(struct dentry *src_dentry, struct inode *dir, struct path *path, ++ struct inode **delegated_inode) ++{ ++ int err; ++ struct dentry *d; ++ struct user_namespace *userns; ++ ++ IMustLock(dir); ++ ++ err = au_test_nlink(d_inode(src_dentry)); ++ if (unlikely(err)) ++ return err; ++ ++ /* we don't call may_linkat() */ ++ d = path->dentry; ++ path->dentry = d->d_parent; ++ err = security_path_link(src_dentry, path, d); ++ path->dentry = d; ++ if (unlikely(err)) ++ goto out; ++ userns = mnt_user_ns(path->mnt); ++ ++ lockdep_off(); ++ err = vfs_link(src_dentry, userns, dir, path->dentry, delegated_inode); ++ lockdep_on(); ++ if (!err) { ++ struct path tmp = *path; ++ int did; ++ ++ /* fuse has different memory inode for the same inumber */ ++ vfsub_update_h_iattr(&tmp, &did); ++ if (did) { ++ tmp.dentry = path->dentry->d_parent; ++ vfsub_update_h_iattr(&tmp, /*did*/NULL); ++ tmp.dentry = src_dentry; ++ vfsub_update_h_iattr(&tmp, /*did*/NULL); ++ } ++ /*ignore*/ ++ } ++ ++out: ++ return err; ++} ++ ++int vfsub_rename(struct inode *src_dir, struct dentry *src_dentry, ++ struct inode *dir, struct path *path, ++ struct inode **delegated_inode, unsigned int flags) ++{ ++ int err; ++ struct renamedata rd; ++ struct path tmp = { ++ .mnt = path->mnt ++ }; ++ struct dentry *d; ++ ++ IMustLock(dir); ++ IMustLock(src_dir); ++ ++ d = path->dentry; ++ path->dentry = d->d_parent; ++ tmp.dentry = src_dentry->d_parent; ++ err = security_path_rename(&tmp, src_dentry, path, d, /*flags*/0); ++ path->dentry = d; ++ if (unlikely(err)) ++ goto out; ++ ++ rd.old_mnt_userns = mnt_user_ns(path->mnt); ++ rd.old_dir = src_dir; ++ rd.old_dentry = src_dentry; ++ rd.new_mnt_userns = rd.old_mnt_userns; ++ rd.new_dir = dir; ++ rd.new_dentry = path->dentry; ++ rd.delegated_inode = delegated_inode; ++ rd.flags = flags; ++ lockdep_off(); ++ err = vfs_rename(&rd); ++ lockdep_on(); ++ if (!err) { ++ int did; ++ ++ tmp.dentry = d->d_parent; ++ vfsub_update_h_iattr(&tmp, &did); ++ if (did) { ++ tmp.dentry = src_dentry; ++ vfsub_update_h_iattr(&tmp, /*did*/NULL); ++ tmp.dentry = src_dentry->d_parent; ++ vfsub_update_h_iattr(&tmp, /*did*/NULL); ++ } ++ /*ignore*/ ++ } ++ ++out: ++ return err; ++} ++ ++int vfsub_mkdir(struct inode *dir, struct path *path, int mode) ++{ ++ int err; ++ struct dentry *d; ++ struct user_namespace *userns; ++ ++ IMustLock(dir); ++ ++ d = path->dentry; ++ path->dentry = d->d_parent; ++ err = security_path_mkdir(path, d, mode); ++ path->dentry = d; ++ if (unlikely(err)) ++ goto out; ++ userns = mnt_user_ns(path->mnt); ++ ++ lockdep_off(); ++ err = vfs_mkdir(userns, dir, path->dentry, mode); ++ lockdep_on(); ++ if (!err) { ++ struct path tmp = *path; ++ int did; ++ ++ vfsub_update_h_iattr(&tmp, &did); ++ if (did) { ++ tmp.dentry = path->dentry->d_parent; ++ vfsub_update_h_iattr(&tmp, /*did*/NULL); ++ } ++ /*ignore*/ ++ } ++ ++out: ++ return err; ++} ++ ++int vfsub_rmdir(struct inode *dir, struct path *path) ++{ ++ int err; ++ struct dentry *d; ++ struct user_namespace *userns; ++ ++ IMustLock(dir); ++ ++ d = path->dentry; ++ path->dentry = d->d_parent; ++ err = security_path_rmdir(path, d); ++ path->dentry = d; ++ if (unlikely(err)) ++ goto out; ++ userns = mnt_user_ns(path->mnt); ++ ++ lockdep_off(); ++ err = vfs_rmdir(userns, dir, path->dentry); ++ lockdep_on(); ++ if (!err) { ++ struct path tmp = { ++ .dentry = path->dentry->d_parent, ++ .mnt = path->mnt ++ }; ++ ++ vfsub_update_h_iattr(&tmp, /*did*/NULL); /*ignore*/ ++ } ++ ++out: ++ return err; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++/* todo: support mmap_sem? */ ++ssize_t vfsub_read_u(struct file *file, char __user *ubuf, size_t count, ++ loff_t *ppos) ++{ ++ ssize_t err; ++ ++ lockdep_off(); ++ err = vfs_read(file, ubuf, count, ppos); ++ lockdep_on(); ++ if (err >= 0) ++ vfsub_update_h_iattr(&file->f_path, /*did*/NULL); /*ignore*/ ++ return err; ++} ++ ++ssize_t vfsub_read_k(struct file *file, void *kbuf, size_t count, ++ loff_t *ppos) ++{ ++ ssize_t err; ++ ++ lockdep_off(); ++ err = kernel_read(file, kbuf, count, ppos); ++ lockdep_on(); ++ AuTraceErr(err); ++ if (err >= 0) ++ vfsub_update_h_iattr(&file->f_path, /*did*/NULL); /*ignore*/ ++ return err; ++} ++ ++ssize_t vfsub_write_u(struct file *file, const char __user *ubuf, size_t count, ++ loff_t *ppos) ++{ ++ ssize_t err; ++ ++ lockdep_off(); ++ err = vfs_write(file, ubuf, count, ppos); ++ lockdep_on(); ++ if (err >= 0) ++ vfsub_update_h_iattr(&file->f_path, /*did*/NULL); /*ignore*/ ++ return err; ++} ++ ++ssize_t vfsub_write_k(struct file *file, void *kbuf, size_t count, loff_t *ppos) ++{ ++ ssize_t err; ++ ++ lockdep_off(); ++ err = kernel_write(file, kbuf, count, ppos); ++ lockdep_on(); ++ if (err >= 0) ++ vfsub_update_h_iattr(&file->f_path, /*did*/NULL); /*ignore*/ ++ return err; ++} ++ ++int vfsub_flush(struct file *file, fl_owner_t id) ++{ ++ int err; ++ ++ err = 0; ++ if (file->f_op->flush) { ++ if (!au_test_nfs(file->f_path.dentry->d_sb)) ++ err = file->f_op->flush(file, id); ++ else { ++ lockdep_off(); ++ err = file->f_op->flush(file, id); ++ lockdep_on(); ++ } ++ if (!err) ++ vfsub_update_h_iattr(&file->f_path, /*did*/NULL); ++ /*ignore*/ ++ } ++ return err; ++} ++ ++int vfsub_iterate_dir(struct file *file, struct dir_context *ctx) ++{ ++ int err; ++ ++ AuDbg("%pD, ctx{%ps, %llu}\n", file, ctx->actor, ctx->pos); ++ ++ lockdep_off(); ++ err = iterate_dir(file, ctx); ++ lockdep_on(); ++ if (err >= 0) ++ vfsub_update_h_iattr(&file->f_path, /*did*/NULL); /*ignore*/ ++ ++ return err; ++} ++ ++long vfsub_splice_to(struct file *in, loff_t *ppos, ++ struct pipe_inode_info *pipe, size_t len, ++ unsigned int flags) ++{ ++ long err; ++ ++ lockdep_off(); ++ err = do_splice_to(in, ppos, pipe, len, flags); ++ lockdep_on(); ++ file_accessed(in); ++ if (err >= 0) ++ vfsub_update_h_iattr(&in->f_path, /*did*/NULL); /*ignore*/ ++ return err; ++} ++ ++long vfsub_splice_from(struct pipe_inode_info *pipe, struct file *out, ++ loff_t *ppos, size_t len, unsigned int flags) ++{ ++ long err; ++ ++ lockdep_off(); ++ err = do_splice_from(pipe, out, ppos, len, flags); ++ lockdep_on(); ++ if (err >= 0) ++ vfsub_update_h_iattr(&out->f_path, /*did*/NULL); /*ignore*/ ++ return err; ++} ++ ++int vfsub_fsync(struct file *file, struct path *path, int datasync) ++{ ++ int err; ++ ++ /* file can be NULL */ ++ lockdep_off(); ++ err = vfs_fsync(file, datasync); ++ lockdep_on(); ++ if (!err) { ++ if (!path) { ++ AuDebugOn(!file); ++ path = &file->f_path; ++ } ++ vfsub_update_h_iattr(path, /*did*/NULL); /*ignore*/ ++ } ++ return err; ++} ++ ++/* cf. open.c:do_sys_truncate() and do_sys_ftruncate() */ ++int vfsub_trunc(struct path *h_path, loff_t length, unsigned int attr, ++ struct file *h_file) ++{ ++ int err; ++ struct inode *h_inode; ++ struct super_block *h_sb; ++ struct user_namespace *h_userns; ++ ++ if (!h_file) { ++ err = vfsub_truncate(h_path, length); ++ goto out; ++ } ++ ++ h_inode = d_inode(h_path->dentry); ++ h_sb = h_inode->i_sb; ++ lockdep_off(); ++ sb_start_write(h_sb); ++ lockdep_on(); ++ err = security_path_truncate(h_path); ++ if (!err) { ++ h_userns = mnt_user_ns(h_path->mnt); ++ lockdep_off(); ++ err = do_truncate(h_userns, h_path->dentry, length, attr, ++ h_file); ++ lockdep_on(); ++ } ++ lockdep_off(); ++ sb_end_write(h_sb); ++ lockdep_on(); ++ ++out: ++ return err; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++struct au_vfsub_mkdir_args { ++ int *errp; ++ struct inode *dir; ++ struct path *path; ++ int mode; ++}; ++ ++static void au_call_vfsub_mkdir(void *args) ++{ ++ struct au_vfsub_mkdir_args *a = args; ++ *a->errp = vfsub_mkdir(a->dir, a->path, a->mode); ++} ++ ++int vfsub_sio_mkdir(struct inode *dir, struct path *path, int mode) ++{ ++ int err, do_sio, wkq_err; ++ struct user_namespace *userns; ++ ++ userns = mnt_user_ns(path->mnt); ++ do_sio = au_test_h_perm_sio(userns, dir, MAY_EXEC | MAY_WRITE); ++ if (!do_sio) { ++ lockdep_off(); ++ err = vfsub_mkdir(dir, path, mode); ++ lockdep_on(); ++ } else { ++ struct au_vfsub_mkdir_args args = { ++ .errp = &err, ++ .dir = dir, ++ .path = path, ++ .mode = mode ++ }; ++ wkq_err = au_wkq_wait(au_call_vfsub_mkdir, &args); ++ if (unlikely(wkq_err)) ++ err = wkq_err; ++ } ++ ++ return err; ++} ++ ++struct au_vfsub_rmdir_args { ++ int *errp; ++ struct inode *dir; ++ struct path *path; ++}; ++ ++static void au_call_vfsub_rmdir(void *args) ++{ ++ struct au_vfsub_rmdir_args *a = args; ++ *a->errp = vfsub_rmdir(a->dir, a->path); ++} ++ ++int vfsub_sio_rmdir(struct inode *dir, struct path *path) ++{ ++ int err, do_sio, wkq_err; ++ struct user_namespace *userns; ++ ++ userns = mnt_user_ns(path->mnt); ++ do_sio = au_test_h_perm_sio(userns, dir, MAY_EXEC | MAY_WRITE); ++ if (!do_sio) { ++ lockdep_off(); ++ err = vfsub_rmdir(dir, path); ++ lockdep_on(); ++ } else { ++ struct au_vfsub_rmdir_args args = { ++ .errp = &err, ++ .dir = dir, ++ .path = path ++ }; ++ wkq_err = au_wkq_wait(au_call_vfsub_rmdir, &args); ++ if (unlikely(wkq_err)) ++ err = wkq_err; ++ } ++ ++ return err; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++struct notify_change_args { ++ int *errp; ++ struct path *path; ++ struct iattr *ia; ++ struct inode **delegated_inode; ++}; ++ ++static void call_notify_change(void *args) ++{ ++ struct notify_change_args *a = args; ++ struct inode *h_inode; ++ struct user_namespace *userns; ++ ++ h_inode = d_inode(a->path->dentry); ++ IMustLock(h_inode); ++ ++ *a->errp = -EPERM; ++ if (!IS_IMMUTABLE(h_inode) && !IS_APPEND(h_inode)) { ++ userns = mnt_user_ns(a->path->mnt); ++ lockdep_off(); ++ *a->errp = notify_change(userns, a->path->dentry, a->ia, ++ a->delegated_inode); ++ lockdep_on(); ++ if (!*a->errp) ++ vfsub_update_h_iattr(a->path, /*did*/NULL); /*ignore*/ ++ } ++ AuTraceErr(*a->errp); ++} ++ ++int vfsub_notify_change(struct path *path, struct iattr *ia, ++ struct inode **delegated_inode) ++{ ++ int err; ++ struct notify_change_args args = { ++ .errp = &err, ++ .path = path, ++ .ia = ia, ++ .delegated_inode = delegated_inode ++ }; ++ ++ call_notify_change(&args); ++ ++ return err; ++} ++ ++int vfsub_sio_notify_change(struct path *path, struct iattr *ia, ++ struct inode **delegated_inode) ++{ ++ int err, wkq_err; ++ struct notify_change_args args = { ++ .errp = &err, ++ .path = path, ++ .ia = ia, ++ .delegated_inode = delegated_inode ++ }; ++ ++ wkq_err = au_wkq_wait(call_notify_change, &args); ++ if (unlikely(wkq_err)) ++ err = wkq_err; ++ ++ return err; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++struct unlink_args { ++ int *errp; ++ struct inode *dir; ++ struct path *path; ++ struct inode **delegated_inode; ++}; ++ ++static void call_unlink(void *args) ++{ ++ struct unlink_args *a = args; ++ struct dentry *d = a->path->dentry; ++ struct inode *h_inode; ++ struct user_namespace *userns; ++ const int stop_sillyrename = (au_test_nfs(d->d_sb) ++ && au_dcount(d) == 1); ++ ++ IMustLock(a->dir); ++ ++ a->path->dentry = d->d_parent; ++ *a->errp = security_path_unlink(a->path, d); ++ a->path->dentry = d; ++ if (unlikely(*a->errp)) ++ return; ++ ++ if (!stop_sillyrename) ++ dget(d); ++ h_inode = NULL; ++ if (d_is_positive(d)) { ++ h_inode = d_inode(d); ++ ihold(h_inode); ++ } ++ ++ userns = mnt_user_ns(a->path->mnt); ++ lockdep_off(); ++ *a->errp = vfs_unlink(userns, a->dir, d, a->delegated_inode); ++ lockdep_on(); ++ if (!*a->errp) { ++ struct path tmp = { ++ .dentry = d->d_parent, ++ .mnt = a->path->mnt ++ }; ++ vfsub_update_h_iattr(&tmp, /*did*/NULL); /*ignore*/ ++ } ++ ++ if (!stop_sillyrename) ++ dput(d); ++ if (h_inode) ++ iput(h_inode); ++ ++ AuTraceErr(*a->errp); ++} ++ ++/* ++ * @dir: must be locked. ++ * @dentry: target dentry. ++ */ ++int vfsub_unlink(struct inode *dir, struct path *path, ++ struct inode **delegated_inode, int force) ++{ ++ int err; ++ struct unlink_args args = { ++ .errp = &err, ++ .dir = dir, ++ .path = path, ++ .delegated_inode = delegated_inode ++ }; ++ ++ if (!force) ++ call_unlink(&args); ++ else { ++ int wkq_err; ++ ++ wkq_err = au_wkq_wait(call_unlink, &args); ++ if (unlikely(wkq_err)) ++ err = wkq_err; ++ } ++ ++ return err; ++} +diff -Naur linux-5.15/fs/aufs/vfsub.h aufs5-linux-aufs5.15/fs/aufs/vfsub.h +--- linux-5.15/fs/aufs/vfsub.h 1970-01-01 03:00:00.000000000 +0300 ++++ aufs5-linux-aufs5.15/fs/aufs/vfsub.h 2022-03-07 13:48:09.000000000 +0300 +@@ -0,0 +1,345 @@ ++/* SPDX-License-Identifier: GPL-2.0 */ ++/* ++ * Copyright (C) 2005-2021 Junjiro R. Okajima ++ */ ++ ++/* ++ * sub-routines for VFS ++ */ ++ ++#ifndef __AUFS_VFSUB_H__ ++#define __AUFS_VFSUB_H__ ++ ++#ifdef __KERNEL__ ++ ++#include ++#include ++#include ++#include ++#include "debug.h" ++ ++/* copied from linux/fs/internal.h */ ++/* todo: BAD approach!! */ ++extern void __mnt_drop_write(struct vfsmount *); ++extern struct file *alloc_empty_file(int, const struct cred *); ++ ++/* ---------------------------------------------------------------------- */ ++ ++/* lock subclass for lower inode */ ++/* default MAX_LOCKDEP_SUBCLASSES(8) is not enough */ ++/* reduce? gave up. */ ++enum { ++ AuLsc_I_Begin = I_MUTEX_PARENT2, /* 5 */ ++ AuLsc_I_PARENT, /* lower inode, parent first */ ++ AuLsc_I_PARENT2, /* copyup dirs */ ++ AuLsc_I_PARENT3, /* copyup wh */ ++ AuLsc_I_CHILD, ++ AuLsc_I_CHILD2, ++ AuLsc_I_End ++}; ++ ++/* to debug easier, do not make them inlined functions */ ++#define MtxMustLock(mtx) AuDebugOn(!mutex_is_locked(mtx)) ++#define IMustLock(i) AuDebugOn(!inode_is_locked(i)) ++ ++/* ---------------------------------------------------------------------- */ ++ ++static inline void vfsub_drop_nlink(struct inode *inode) ++{ ++ AuDebugOn(!inode->i_nlink); ++ drop_nlink(inode); ++} ++ ++static inline void vfsub_dead_dir(struct inode *inode) ++{ ++ AuDebugOn(!S_ISDIR(inode->i_mode)); ++ inode->i_flags |= S_DEAD; ++ clear_nlink(inode); ++} ++ ++static inline int vfsub_native_ro(struct inode *inode) ++{ ++ return sb_rdonly(inode->i_sb) ++ || IS_RDONLY(inode) ++ /* || IS_APPEND(inode) */ ++ || IS_IMMUTABLE(inode); ++} ++ ++#ifdef CONFIG_AUFS_BR_FUSE ++int vfsub_test_mntns(struct vfsmount *mnt, struct super_block *h_sb); ++#else ++AuStubInt0(vfsub_test_mntns, struct vfsmount *mnt, struct super_block *h_sb); ++#endif ++ ++int vfsub_sync_filesystem(struct super_block *h_sb, int wait); ++ ++/* ---------------------------------------------------------------------- */ ++ ++int vfsub_update_h_iattr(struct path *h_path, int *did); ++struct file *vfsub_dentry_open(struct path *path, int flags); ++struct file *vfsub_filp_open(const char *path, int oflags, int mode); ++struct au_branch; ++struct vfsub_aopen_args { ++ struct file *file; ++ unsigned int open_flag; ++ umode_t create_mode; ++ struct au_branch *br; ++}; ++int vfsub_atomic_open(struct inode *dir, struct dentry *dentry, ++ struct vfsub_aopen_args *args); ++int vfsub_kern_path(const char *name, unsigned int flags, struct path *path); ++ ++struct dentry *vfsub_lookup_one_len_unlocked(const char *name, ++ struct path *ppath, int len); ++struct dentry *vfsub_lookup_one_len(const char *name, struct path *ppath, ++ int len); ++ ++struct vfsub_lkup_one_args { ++ struct dentry **errp; ++ struct qstr *name; ++ struct path *ppath; ++}; ++ ++static inline struct dentry *vfsub_lkup_one(struct qstr *name, ++ struct path *ppath) ++{ ++ return vfsub_lookup_one_len(name->name, ppath, name->len); ++} ++ ++void vfsub_call_lkup_one(void *args); ++ ++/* ---------------------------------------------------------------------- */ ++ ++static inline int vfsub_mnt_want_write(struct vfsmount *mnt) ++{ ++ int err; ++ ++ lockdep_off(); ++ err = mnt_want_write(mnt); ++ lockdep_on(); ++ return err; ++} ++ ++static inline void vfsub_mnt_drop_write(struct vfsmount *mnt) ++{ ++ lockdep_off(); ++ mnt_drop_write(mnt); ++ lockdep_on(); ++} ++ ++#if 0 /* reserved */ ++static inline void vfsub_mnt_drop_write_file(struct file *file) ++{ ++ lockdep_off(); ++ mnt_drop_write_file(file); ++ lockdep_on(); ++} ++#endif ++ ++/* ---------------------------------------------------------------------- */ ++ ++struct au_hinode; ++struct dentry *vfsub_lock_rename(struct dentry *d1, struct au_hinode *hdir1, ++ struct dentry *d2, struct au_hinode *hdir2); ++void vfsub_unlock_rename(struct dentry *d1, struct au_hinode *hdir1, ++ struct dentry *d2, struct au_hinode *hdir2); ++ ++int vfsub_create(struct inode *dir, struct path *path, int mode, ++ bool want_excl); ++int vfsub_symlink(struct inode *dir, struct path *path, ++ const char *symname); ++int vfsub_mknod(struct inode *dir, struct path *path, int mode, dev_t dev); ++int vfsub_link(struct dentry *src_dentry, struct inode *dir, ++ struct path *path, struct inode **delegated_inode); ++int vfsub_rename(struct inode *src_hdir, struct dentry *src_dentry, ++ struct inode *hdir, struct path *path, ++ struct inode **delegated_inode, unsigned int flags); ++int vfsub_mkdir(struct inode *dir, struct path *path, int mode); ++int vfsub_rmdir(struct inode *dir, struct path *path); ++ ++/* ---------------------------------------------------------------------- */ ++ ++ssize_t vfsub_read_u(struct file *file, char __user *ubuf, size_t count, ++ loff_t *ppos); ++ssize_t vfsub_read_k(struct file *file, void *kbuf, size_t count, ++ loff_t *ppos); ++ssize_t vfsub_write_u(struct file *file, const char __user *ubuf, size_t count, ++ loff_t *ppos); ++ssize_t vfsub_write_k(struct file *file, void *kbuf, size_t count, ++ loff_t *ppos); ++int vfsub_flush(struct file *file, fl_owner_t id); ++int vfsub_iterate_dir(struct file *file, struct dir_context *ctx); ++ ++static inline loff_t vfsub_f_size_read(struct file *file) ++{ ++ return i_size_read(file_inode(file)); ++} ++ ++static inline unsigned int vfsub_file_flags(struct file *file) ++{ ++ unsigned int flags; ++ ++ spin_lock(&file->f_lock); ++ flags = file->f_flags; ++ spin_unlock(&file->f_lock); ++ ++ return flags; ++} ++ ++static inline int vfsub_file_execed(struct file *file) ++{ ++ /* todo: direct access f_flags */ ++ return !!(vfsub_file_flags(file) & __FMODE_EXEC); ++} ++ ++#if 0 /* reserved */ ++static inline void vfsub_file_accessed(struct file *h_file) ++{ ++ file_accessed(h_file); ++ vfsub_update_h_iattr(&h_file->f_path, /*did*/NULL); /*ignore*/ ++} ++#endif ++ ++#if 0 /* reserved */ ++static inline void vfsub_touch_atime(struct vfsmount *h_mnt, ++ struct dentry *h_dentry) ++{ ++ struct path h_path = { ++ .dentry = h_dentry, ++ .mnt = h_mnt ++ }; ++ touch_atime(&h_path); ++ vfsub_update_h_iattr(&h_path, /*did*/NULL); /*ignore*/ ++} ++#endif ++ ++static inline int vfsub_update_time(struct inode *h_inode, ++ struct timespec64 *ts, int flags) ++{ ++ return update_time(h_inode, ts, flags); ++ /* no vfsub_update_h_iattr() since we don't have struct path */ ++} ++ ++#ifdef CONFIG_FS_POSIX_ACL ++static inline int vfsub_acl_chmod(struct user_namespace *h_userns, ++ struct inode *h_inode, umode_t h_mode) ++{ ++ int err; ++ ++ err = posix_acl_chmod(h_userns, h_inode, h_mode); ++ if (err == -EOPNOTSUPP) ++ err = 0; ++ return err; ++} ++#else ++AuStubInt0(vfsub_acl_chmod, struct user_namespace *h_userns, ++ struct inode *h_inode, umode_t h_mode); ++#endif ++ ++long vfsub_splice_to(struct file *in, loff_t *ppos, ++ struct pipe_inode_info *pipe, size_t len, ++ unsigned int flags); ++long vfsub_splice_from(struct pipe_inode_info *pipe, struct file *out, ++ loff_t *ppos, size_t len, unsigned int flags); ++ ++static inline long vfsub_truncate(struct path *path, loff_t length) ++{ ++ long err; ++ ++ lockdep_off(); ++ err = vfs_truncate(path, length); ++ lockdep_on(); ++ return err; ++} ++ ++int vfsub_trunc(struct path *h_path, loff_t length, unsigned int attr, ++ struct file *h_file); ++int vfsub_fsync(struct file *file, struct path *path, int datasync); ++ ++/* ++ * re-use branch fs's ioctl(FICLONE) while aufs itself doesn't support such ++ * ioctl. ++ */ ++static inline loff_t vfsub_clone_file_range(struct file *src, struct file *dst, ++ loff_t len) ++{ ++ loff_t err; ++ ++ lockdep_off(); ++ err = vfs_clone_file_range(src, 0, dst, 0, len, /*remap_flags*/0); ++ lockdep_on(); ++ ++ return err; ++} ++ ++/* copy_file_range(2) is a systemcall */ ++static inline ssize_t vfsub_copy_file_range(struct file *src, loff_t src_pos, ++ struct file *dst, loff_t dst_pos, ++ size_t len, unsigned int flags) ++{ ++ ssize_t ssz; ++ ++ lockdep_off(); ++ ssz = vfs_copy_file_range(src, src_pos, dst, dst_pos, len, flags); ++ lockdep_on(); ++ ++ return ssz; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++static inline loff_t vfsub_llseek(struct file *file, loff_t offset, int origin) ++{ ++ loff_t err; ++ ++ lockdep_off(); ++ err = vfs_llseek(file, offset, origin); ++ lockdep_on(); ++ return err; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++int vfsub_sio_mkdir(struct inode *dir, struct path *path, int mode); ++int vfsub_sio_rmdir(struct inode *dir, struct path *path); ++int vfsub_sio_notify_change(struct path *path, struct iattr *ia, ++ struct inode **delegated_inode); ++int vfsub_notify_change(struct path *path, struct iattr *ia, ++ struct inode **delegated_inode); ++int vfsub_unlink(struct inode *dir, struct path *path, ++ struct inode **delegated_inode, int force); ++ ++static inline int vfsub_getattr(const struct path *path, struct kstat *st) ++{ ++ return vfs_getattr(path, st, STATX_BASIC_STATS, AT_STATX_SYNC_AS_STAT); ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++static inline int vfsub_setxattr(struct user_namespace *userns, ++ struct dentry *dentry, const char *name, ++ const void *value, size_t size, int flags) ++{ ++ int err; ++ ++ lockdep_off(); ++ err = vfs_setxattr(userns, dentry, name, value, size, flags); ++ lockdep_on(); ++ ++ return err; ++} ++ ++static inline int vfsub_removexattr(struct user_namespace *userns, ++ struct dentry *dentry, const char *name) ++{ ++ int err; ++ ++ lockdep_off(); ++ err = vfs_removexattr(userns, dentry, name); ++ lockdep_on(); ++ ++ return err; ++} ++ ++#endif /* __KERNEL__ */ ++#endif /* __AUFS_VFSUB_H__ */ +diff -Naur linux-5.15/fs/aufs/wbr_policy.c aufs5-linux-aufs5.15/fs/aufs/wbr_policy.c +--- linux-5.15/fs/aufs/wbr_policy.c 1970-01-01 03:00:00.000000000 +0300 ++++ aufs5-linux-aufs5.15/fs/aufs/wbr_policy.c 2022-03-07 13:48:09.000000000 +0300 +@@ -0,0 +1,817 @@ ++// SPDX-License-Identifier: GPL-2.0 ++/* ++ * Copyright (C) 2005-2021 Junjiro R. Okajima ++ */ ++ ++/* ++ * policies for selecting one among multiple writable branches ++ */ ++ ++#include ++#include "aufs.h" ++ ++/* subset of cpup_attr() */ ++static noinline_for_stack ++int au_cpdown_attr(struct path *h_path, struct dentry *h_src) ++{ ++ int err, sbits; ++ struct iattr ia; ++ struct inode *h_isrc; ++ ++ h_isrc = d_inode(h_src); ++ ia.ia_valid = ATTR_FORCE | ATTR_MODE | ATTR_UID | ATTR_GID; ++ ia.ia_mode = h_isrc->i_mode; ++ ia.ia_uid = h_isrc->i_uid; ++ ia.ia_gid = h_isrc->i_gid; ++ sbits = !!(ia.ia_mode & (S_ISUID | S_ISGID)); ++ au_cpup_attr_flags(d_inode(h_path->dentry), h_isrc->i_flags); ++ /* no delegation since it is just created */ ++ err = vfsub_sio_notify_change(h_path, &ia, /*delegated*/NULL); ++ ++ /* is this nfs only? */ ++ if (!err && sbits && au_test_nfs(h_path->dentry->d_sb)) { ++ ia.ia_valid = ATTR_FORCE | ATTR_MODE; ++ ia.ia_mode = h_isrc->i_mode; ++ err = vfsub_sio_notify_change(h_path, &ia, /*delegated*/NULL); ++ } ++ ++ return err; ++} ++ ++#define AuCpdown_PARENT_OPQ 1 ++#define AuCpdown_WHED (1 << 1) ++#define AuCpdown_MADE_DIR (1 << 2) ++#define AuCpdown_DIROPQ (1 << 3) ++#define au_ftest_cpdown(flags, name) ((flags) & AuCpdown_##name) ++#define au_fset_cpdown(flags, name) \ ++ do { (flags) |= AuCpdown_##name; } while (0) ++#define au_fclr_cpdown(flags, name) \ ++ do { (flags) &= ~AuCpdown_##name; } while (0) ++ ++static int au_cpdown_dir_opq(struct dentry *dentry, aufs_bindex_t bdst, ++ unsigned int *flags) ++{ ++ int err; ++ struct dentry *opq_dentry; ++ ++ opq_dentry = au_diropq_create(dentry, bdst); ++ err = PTR_ERR(opq_dentry); ++ if (IS_ERR(opq_dentry)) ++ goto out; ++ dput(opq_dentry); ++ au_fset_cpdown(*flags, DIROPQ); ++ ++out: ++ return err; ++} ++ ++static int au_cpdown_dir_wh(struct dentry *dentry, struct dentry *h_parent, ++ struct inode *dir, aufs_bindex_t bdst) ++{ ++ int err; ++ struct path h_path; ++ struct au_branch *br; ++ ++ br = au_sbr(dentry->d_sb, bdst); ++ h_path.dentry = au_wh_lkup(h_parent, &dentry->d_name, br); ++ err = PTR_ERR(h_path.dentry); ++ if (IS_ERR(h_path.dentry)) ++ goto out; ++ ++ err = 0; ++ if (d_is_positive(h_path.dentry)) { ++ h_path.mnt = au_br_mnt(br); ++ err = au_wh_unlink_dentry(au_h_iptr(dir, bdst), &h_path, ++ dentry); ++ } ++ dput(h_path.dentry); ++ ++out: ++ return err; ++} ++ ++static int au_cpdown_dir(struct dentry *dentry, aufs_bindex_t bdst, ++ struct au_pin *pin, ++ struct dentry *h_parent, void *arg) ++{ ++ int err, rerr; ++ aufs_bindex_t bopq, btop; ++ struct path h_path; ++ struct dentry *parent; ++ struct inode *h_dir, *h_inode, *inode, *dir; ++ unsigned int *flags = arg; ++ ++ btop = au_dbtop(dentry); ++ /* dentry is di-locked */ ++ parent = dget_parent(dentry); ++ dir = d_inode(parent); ++ h_dir = d_inode(h_parent); ++ AuDebugOn(h_dir != au_h_iptr(dir, bdst)); ++ IMustLock(h_dir); ++ ++ err = au_lkup_neg(dentry, bdst, /*wh*/0); ++ if (unlikely(err < 0)) ++ goto out; ++ h_path.dentry = au_h_dptr(dentry, bdst); ++ h_path.mnt = au_sbr_mnt(dentry->d_sb, bdst); ++ err = vfsub_sio_mkdir(au_h_iptr(dir, bdst), &h_path, 0755); ++ if (unlikely(err)) ++ goto out_put; ++ au_fset_cpdown(*flags, MADE_DIR); ++ ++ bopq = au_dbdiropq(dentry); ++ au_fclr_cpdown(*flags, WHED); ++ au_fclr_cpdown(*flags, DIROPQ); ++ if (au_dbwh(dentry) == bdst) ++ au_fset_cpdown(*flags, WHED); ++ if (!au_ftest_cpdown(*flags, PARENT_OPQ) && bopq <= bdst) ++ au_fset_cpdown(*flags, PARENT_OPQ); ++ h_inode = d_inode(h_path.dentry); ++ inode_lock_nested(h_inode, AuLsc_I_CHILD); ++ if (au_ftest_cpdown(*flags, WHED)) { ++ err = au_cpdown_dir_opq(dentry, bdst, flags); ++ if (unlikely(err)) { ++ inode_unlock(h_inode); ++ goto out_dir; ++ } ++ } ++ ++ err = au_cpdown_attr(&h_path, au_h_dptr(dentry, btop)); ++ inode_unlock(h_inode); ++ if (unlikely(err)) ++ goto out_opq; ++ ++ if (au_ftest_cpdown(*flags, WHED)) { ++ err = au_cpdown_dir_wh(dentry, h_parent, dir, bdst); ++ if (unlikely(err)) ++ goto out_opq; ++ } ++ ++ inode = d_inode(dentry); ++ if (au_ibbot(inode) < bdst) ++ au_set_ibbot(inode, bdst); ++ au_set_h_iptr(inode, bdst, au_igrab(h_inode), ++ au_hi_flags(inode, /*isdir*/1)); ++ au_fhsm_wrote(dentry->d_sb, bdst, /*force*/0); ++ goto out; /* success */ ++ ++ /* revert */ ++out_opq: ++ if (au_ftest_cpdown(*flags, DIROPQ)) { ++ inode_lock_nested(h_inode, AuLsc_I_CHILD); ++ rerr = au_diropq_remove(dentry, bdst); ++ inode_unlock(h_inode); ++ if (unlikely(rerr)) { ++ AuIOErr("failed removing diropq for %pd b%d (%d)\n", ++ dentry, bdst, rerr); ++ err = -EIO; ++ goto out; ++ } ++ } ++out_dir: ++ if (au_ftest_cpdown(*flags, MADE_DIR)) { ++ rerr = vfsub_sio_rmdir(au_h_iptr(dir, bdst), &h_path); ++ if (unlikely(rerr)) { ++ AuIOErr("failed removing %pd b%d (%d)\n", ++ dentry, bdst, rerr); ++ err = -EIO; ++ } ++ } ++out_put: ++ au_set_h_dptr(dentry, bdst, NULL); ++ if (au_dbbot(dentry) == bdst) ++ au_update_dbbot(dentry); ++out: ++ dput(parent); ++ return err; ++} ++ ++int au_cpdown_dirs(struct dentry *dentry, aufs_bindex_t bdst) ++{ ++ int err; ++ unsigned int flags; ++ ++ flags = 0; ++ err = au_cp_dirs(dentry, bdst, au_cpdown_dir, &flags); ++ ++ return err; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++/* policies for create */ ++ ++int au_wbr_nonopq(struct dentry *dentry, aufs_bindex_t bindex) ++{ ++ int err, i, j, ndentry; ++ aufs_bindex_t bopq; ++ struct au_dcsub_pages dpages; ++ struct au_dpage *dpage; ++ struct dentry **dentries, *parent, *d; ++ ++ err = au_dpages_init(&dpages, GFP_NOFS); ++ if (unlikely(err)) ++ goto out; ++ parent = dget_parent(dentry); ++ err = au_dcsub_pages_rev_aufs(&dpages, parent, /*do_include*/0); ++ if (unlikely(err)) ++ goto out_free; ++ ++ err = bindex; ++ for (i = 0; i < dpages.ndpage; i++) { ++ dpage = dpages.dpages + i; ++ dentries = dpage->dentries; ++ ndentry = dpage->ndentry; ++ for (j = 0; j < ndentry; j++) { ++ d = dentries[j]; ++ di_read_lock_parent2(d, !AuLock_IR); ++ bopq = au_dbdiropq(d); ++ di_read_unlock(d, !AuLock_IR); ++ if (bopq >= 0 && bopq < err) ++ err = bopq; ++ } ++ } ++ ++out_free: ++ dput(parent); ++ au_dpages_free(&dpages); ++out: ++ return err; ++} ++ ++static int au_wbr_bu(struct super_block *sb, aufs_bindex_t bindex) ++{ ++ for (; bindex >= 0; bindex--) ++ if (!au_br_rdonly(au_sbr(sb, bindex))) ++ return bindex; ++ return -EROFS; ++} ++ ++/* top down parent */ ++static int au_wbr_create_tdp(struct dentry *dentry, ++ unsigned int flags __maybe_unused) ++{ ++ int err; ++ aufs_bindex_t btop, bindex; ++ struct super_block *sb; ++ struct dentry *parent, *h_parent; ++ ++ sb = dentry->d_sb; ++ btop = au_dbtop(dentry); ++ err = btop; ++ if (!au_br_rdonly(au_sbr(sb, btop))) ++ goto out; ++ ++ err = -EROFS; ++ parent = dget_parent(dentry); ++ for (bindex = au_dbtop(parent); bindex < btop; bindex++) { ++ h_parent = au_h_dptr(parent, bindex); ++ if (!h_parent || d_is_negative(h_parent)) ++ continue; ++ ++ if (!au_br_rdonly(au_sbr(sb, bindex))) { ++ err = bindex; ++ break; ++ } ++ } ++ dput(parent); ++ ++ /* bottom up here */ ++ if (unlikely(err < 0)) { ++ err = au_wbr_bu(sb, btop - 1); ++ if (err >= 0) ++ err = au_wbr_nonopq(dentry, err); ++ } ++ ++out: ++ AuDbg("b%d\n", err); ++ return err; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++/* an exception for the policy other than tdp */ ++static int au_wbr_create_exp(struct dentry *dentry) ++{ ++ int err; ++ aufs_bindex_t bwh, bdiropq; ++ struct dentry *parent; ++ ++ err = -1; ++ bwh = au_dbwh(dentry); ++ parent = dget_parent(dentry); ++ bdiropq = au_dbdiropq(parent); ++ if (bwh >= 0) { ++ if (bdiropq >= 0) ++ err = min(bdiropq, bwh); ++ else ++ err = bwh; ++ AuDbg("%d\n", err); ++ } else if (bdiropq >= 0) { ++ err = bdiropq; ++ AuDbg("%d\n", err); ++ } ++ dput(parent); ++ ++ if (err >= 0) ++ err = au_wbr_nonopq(dentry, err); ++ ++ if (err >= 0 && au_br_rdonly(au_sbr(dentry->d_sb, err))) ++ err = -1; ++ ++ AuDbg("%d\n", err); ++ return err; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++/* round robin */ ++static int au_wbr_create_init_rr(struct super_block *sb) ++{ ++ int err; ++ ++ err = au_wbr_bu(sb, au_sbbot(sb)); ++ atomic_set(&au_sbi(sb)->si_wbr_rr_next, -err); /* less important */ ++ /* smp_mb(); */ ++ ++ AuDbg("b%d\n", err); ++ return err; ++} ++ ++static int au_wbr_create_rr(struct dentry *dentry, unsigned int flags) ++{ ++ int err, nbr; ++ unsigned int u; ++ aufs_bindex_t bindex, bbot; ++ struct super_block *sb; ++ atomic_t *next; ++ ++ err = au_wbr_create_exp(dentry); ++ if (err >= 0) ++ goto out; ++ ++ sb = dentry->d_sb; ++ next = &au_sbi(sb)->si_wbr_rr_next; ++ bbot = au_sbbot(sb); ++ nbr = bbot + 1; ++ for (bindex = 0; bindex <= bbot; bindex++) { ++ if (!au_ftest_wbr(flags, DIR)) { ++ err = atomic_dec_return(next) + 1; ++ /* modulo for 0 is meaningless */ ++ if (unlikely(!err)) ++ err = atomic_dec_return(next) + 1; ++ } else ++ err = atomic_read(next); ++ AuDbg("%d\n", err); ++ u = err; ++ err = u % nbr; ++ AuDbg("%d\n", err); ++ if (!au_br_rdonly(au_sbr(sb, err))) ++ break; ++ err = -EROFS; ++ } ++ ++ if (err >= 0) ++ err = au_wbr_nonopq(dentry, err); ++ ++out: ++ AuDbg("%d\n", err); ++ return err; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++/* most free space */ ++static void au_mfs(struct dentry *dentry, struct dentry *parent) ++{ ++ struct super_block *sb; ++ struct au_branch *br; ++ struct au_wbr_mfs *mfs; ++ struct dentry *h_parent; ++ aufs_bindex_t bindex, bbot; ++ int err; ++ unsigned long long b, bavail; ++ struct path h_path; ++ /* reduce the stack usage */ ++ struct kstatfs *st; ++ ++ st = kmalloc(sizeof(*st), GFP_NOFS); ++ if (unlikely(!st)) { ++ AuWarn1("failed updating mfs(%d), ignored\n", -ENOMEM); ++ return; ++ } ++ ++ bavail = 0; ++ sb = dentry->d_sb; ++ mfs = &au_sbi(sb)->si_wbr_mfs; ++ MtxMustLock(&mfs->mfs_lock); ++ mfs->mfs_bindex = -EROFS; ++ mfs->mfsrr_bytes = 0; ++ if (!parent) { ++ bindex = 0; ++ bbot = au_sbbot(sb); ++ } else { ++ bindex = au_dbtop(parent); ++ bbot = au_dbtaildir(parent); ++ } ++ ++ for (; bindex <= bbot; bindex++) { ++ if (parent) { ++ h_parent = au_h_dptr(parent, bindex); ++ if (!h_parent || d_is_negative(h_parent)) ++ continue; ++ } ++ br = au_sbr(sb, bindex); ++ if (au_br_rdonly(br)) ++ continue; ++ ++ /* sb->s_root for NFS is unreliable */ ++ h_path.mnt = au_br_mnt(br); ++ h_path.dentry = h_path.mnt->mnt_root; ++ err = vfs_statfs(&h_path, st); ++ if (unlikely(err)) { ++ AuWarn1("failed statfs, b%d, %d\n", bindex, err); ++ continue; ++ } ++ ++ /* when the available size is equal, select the lower one */ ++ BUILD_BUG_ON(sizeof(b) < sizeof(st->f_bavail) ++ || sizeof(b) < sizeof(st->f_bsize)); ++ b = st->f_bavail * st->f_bsize; ++ br->br_wbr->wbr_bytes = b; ++ if (b >= bavail) { ++ bavail = b; ++ mfs->mfs_bindex = bindex; ++ mfs->mfs_jiffy = jiffies; ++ } ++ } ++ ++ mfs->mfsrr_bytes = bavail; ++ AuDbg("b%d\n", mfs->mfs_bindex); ++ au_kfree_rcu(st); ++} ++ ++static int au_wbr_create_mfs(struct dentry *dentry, unsigned int flags) ++{ ++ int err; ++ struct dentry *parent; ++ struct super_block *sb; ++ struct au_wbr_mfs *mfs; ++ ++ err = au_wbr_create_exp(dentry); ++ if (err >= 0) ++ goto out; ++ ++ sb = dentry->d_sb; ++ parent = NULL; ++ if (au_ftest_wbr(flags, PARENT)) ++ parent = dget_parent(dentry); ++ mfs = &au_sbi(sb)->si_wbr_mfs; ++ mutex_lock(&mfs->mfs_lock); ++ if (time_after(jiffies, mfs->mfs_jiffy + mfs->mfs_expire) ++ || mfs->mfs_bindex < 0 ++ || au_br_rdonly(au_sbr(sb, mfs->mfs_bindex))) ++ au_mfs(dentry, parent); ++ mutex_unlock(&mfs->mfs_lock); ++ err = mfs->mfs_bindex; ++ dput(parent); ++ ++ if (err >= 0) ++ err = au_wbr_nonopq(dentry, err); ++ ++out: ++ AuDbg("b%d\n", err); ++ return err; ++} ++ ++static int au_wbr_create_init_mfs(struct super_block *sb) ++{ ++ struct au_wbr_mfs *mfs; ++ ++ mfs = &au_sbi(sb)->si_wbr_mfs; ++ mutex_init(&mfs->mfs_lock); ++ mfs->mfs_jiffy = 0; ++ mfs->mfs_bindex = -EROFS; ++ ++ return 0; ++} ++ ++static int au_wbr_create_fin_mfs(struct super_block *sb __maybe_unused) ++{ ++ mutex_destroy(&au_sbi(sb)->si_wbr_mfs.mfs_lock); ++ return 0; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++/* top down regardless parent, and then mfs */ ++static int au_wbr_create_tdmfs(struct dentry *dentry, ++ unsigned int flags __maybe_unused) ++{ ++ int err; ++ aufs_bindex_t bwh, btail, bindex, bfound, bmfs; ++ unsigned long long watermark; ++ struct super_block *sb; ++ struct au_wbr_mfs *mfs; ++ struct au_branch *br; ++ struct dentry *parent; ++ ++ sb = dentry->d_sb; ++ mfs = &au_sbi(sb)->si_wbr_mfs; ++ mutex_lock(&mfs->mfs_lock); ++ if (time_after(jiffies, mfs->mfs_jiffy + mfs->mfs_expire) ++ || mfs->mfs_bindex < 0) ++ au_mfs(dentry, /*parent*/NULL); ++ watermark = mfs->mfsrr_watermark; ++ bmfs = mfs->mfs_bindex; ++ mutex_unlock(&mfs->mfs_lock); ++ ++ /* another style of au_wbr_create_exp() */ ++ bwh = au_dbwh(dentry); ++ parent = dget_parent(dentry); ++ btail = au_dbtaildir(parent); ++ if (bwh >= 0 && bwh < btail) ++ btail = bwh; ++ ++ err = au_wbr_nonopq(dentry, btail); ++ if (unlikely(err < 0)) ++ goto out; ++ btail = err; ++ bfound = -1; ++ for (bindex = 0; bindex <= btail; bindex++) { ++ br = au_sbr(sb, bindex); ++ if (au_br_rdonly(br)) ++ continue; ++ if (br->br_wbr->wbr_bytes > watermark) { ++ bfound = bindex; ++ break; ++ } ++ } ++ err = bfound; ++ if (err < 0) ++ err = bmfs; ++ ++out: ++ dput(parent); ++ AuDbg("b%d\n", err); ++ return err; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++/* most free space and then round robin */ ++static int au_wbr_create_mfsrr(struct dentry *dentry, unsigned int flags) ++{ ++ int err; ++ struct au_wbr_mfs *mfs; ++ ++ err = au_wbr_create_mfs(dentry, flags); ++ if (err >= 0) { ++ mfs = &au_sbi(dentry->d_sb)->si_wbr_mfs; ++ mutex_lock(&mfs->mfs_lock); ++ if (mfs->mfsrr_bytes < mfs->mfsrr_watermark) ++ err = au_wbr_create_rr(dentry, flags); ++ mutex_unlock(&mfs->mfs_lock); ++ } ++ ++ AuDbg("b%d\n", err); ++ return err; ++} ++ ++static int au_wbr_create_init_mfsrr(struct super_block *sb) ++{ ++ int err; ++ ++ au_wbr_create_init_mfs(sb); /* ignore */ ++ err = au_wbr_create_init_rr(sb); ++ ++ return err; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++/* top down parent and most free space */ ++static int au_wbr_create_pmfs(struct dentry *dentry, unsigned int flags) ++{ ++ int err, e2; ++ unsigned long long b; ++ aufs_bindex_t bindex, btop, bbot; ++ struct super_block *sb; ++ struct dentry *parent, *h_parent; ++ struct au_branch *br; ++ ++ err = au_wbr_create_tdp(dentry, flags); ++ if (unlikely(err < 0)) ++ goto out; ++ parent = dget_parent(dentry); ++ btop = au_dbtop(parent); ++ bbot = au_dbtaildir(parent); ++ if (btop == bbot) ++ goto out_parent; /* success */ ++ ++ e2 = au_wbr_create_mfs(dentry, flags); ++ if (e2 < 0) ++ goto out_parent; /* success */ ++ ++ /* when the available size is equal, select upper one */ ++ sb = dentry->d_sb; ++ br = au_sbr(sb, err); ++ b = br->br_wbr->wbr_bytes; ++ AuDbg("b%d, %llu\n", err, b); ++ ++ for (bindex = btop; bindex <= bbot; bindex++) { ++ h_parent = au_h_dptr(parent, bindex); ++ if (!h_parent || d_is_negative(h_parent)) ++ continue; ++ ++ br = au_sbr(sb, bindex); ++ if (!au_br_rdonly(br) && br->br_wbr->wbr_bytes > b) { ++ b = br->br_wbr->wbr_bytes; ++ err = bindex; ++ AuDbg("b%d, %llu\n", err, b); ++ } ++ } ++ ++ if (err >= 0) ++ err = au_wbr_nonopq(dentry, err); ++ ++out_parent: ++ dput(parent); ++out: ++ AuDbg("b%d\n", err); ++ return err; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++/* ++ * - top down parent ++ * - most free space with parent ++ * - most free space round-robin regardless parent ++ */ ++static int au_wbr_create_pmfsrr(struct dentry *dentry, unsigned int flags) ++{ ++ int err; ++ unsigned long long watermark; ++ struct super_block *sb; ++ struct au_branch *br; ++ struct au_wbr_mfs *mfs; ++ ++ err = au_wbr_create_pmfs(dentry, flags | AuWbr_PARENT); ++ if (unlikely(err < 0)) ++ goto out; ++ ++ sb = dentry->d_sb; ++ br = au_sbr(sb, err); ++ mfs = &au_sbi(sb)->si_wbr_mfs; ++ mutex_lock(&mfs->mfs_lock); ++ watermark = mfs->mfsrr_watermark; ++ mutex_unlock(&mfs->mfs_lock); ++ if (br->br_wbr->wbr_bytes < watermark) ++ /* regardless the parent dir */ ++ err = au_wbr_create_mfsrr(dentry, flags); ++ ++out: ++ AuDbg("b%d\n", err); ++ return err; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++/* policies for copyup */ ++ ++/* top down parent */ ++static int au_wbr_copyup_tdp(struct dentry *dentry) ++{ ++ return au_wbr_create_tdp(dentry, /*flags, anything is ok*/0); ++} ++ ++/* bottom up parent */ ++static int au_wbr_copyup_bup(struct dentry *dentry) ++{ ++ int err; ++ aufs_bindex_t bindex, btop; ++ struct dentry *parent, *h_parent; ++ struct super_block *sb; ++ ++ err = -EROFS; ++ sb = dentry->d_sb; ++ parent = dget_parent(dentry); ++ btop = au_dbtop(parent); ++ for (bindex = au_dbtop(dentry); bindex >= btop; bindex--) { ++ h_parent = au_h_dptr(parent, bindex); ++ if (!h_parent || d_is_negative(h_parent)) ++ continue; ++ ++ if (!au_br_rdonly(au_sbr(sb, bindex))) { ++ err = bindex; ++ break; ++ } ++ } ++ dput(parent); ++ ++ /* bottom up here */ ++ if (unlikely(err < 0)) ++ err = au_wbr_bu(sb, btop - 1); ++ ++ AuDbg("b%d\n", err); ++ return err; ++} ++ ++/* bottom up */ ++int au_wbr_do_copyup_bu(struct dentry *dentry, aufs_bindex_t btop) ++{ ++ int err; ++ ++ err = au_wbr_bu(dentry->d_sb, btop); ++ AuDbg("b%d\n", err); ++ if (err > btop) ++ err = au_wbr_nonopq(dentry, err); ++ ++ AuDbg("b%d\n", err); ++ return err; ++} ++ ++static int au_wbr_copyup_bu(struct dentry *dentry) ++{ ++ int err; ++ aufs_bindex_t btop; ++ ++ btop = au_dbtop(dentry); ++ err = au_wbr_do_copyup_bu(dentry, btop); ++ return err; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++struct au_wbr_copyup_operations au_wbr_copyup_ops[] = { ++ [AuWbrCopyup_TDP] = { ++ .copyup = au_wbr_copyup_tdp ++ }, ++ [AuWbrCopyup_BUP] = { ++ .copyup = au_wbr_copyup_bup ++ }, ++ [AuWbrCopyup_BU] = { ++ .copyup = au_wbr_copyup_bu ++ } ++}; ++ ++struct au_wbr_create_operations au_wbr_create_ops[] = { ++ [AuWbrCreate_TDP] = { ++ .create = au_wbr_create_tdp ++ }, ++ [AuWbrCreate_RR] = { ++ .create = au_wbr_create_rr, ++ .init = au_wbr_create_init_rr ++ }, ++ [AuWbrCreate_MFS] = { ++ .create = au_wbr_create_mfs, ++ .init = au_wbr_create_init_mfs, ++ .fin = au_wbr_create_fin_mfs ++ }, ++ [AuWbrCreate_MFSV] = { ++ .create = au_wbr_create_mfs, ++ .init = au_wbr_create_init_mfs, ++ .fin = au_wbr_create_fin_mfs ++ }, ++ [AuWbrCreate_MFSRR] = { ++ .create = au_wbr_create_mfsrr, ++ .init = au_wbr_create_init_mfsrr, ++ .fin = au_wbr_create_fin_mfs ++ }, ++ [AuWbrCreate_MFSRRV] = { ++ .create = au_wbr_create_mfsrr, ++ .init = au_wbr_create_init_mfsrr, ++ .fin = au_wbr_create_fin_mfs ++ }, ++ [AuWbrCreate_TDMFS] = { ++ .create = au_wbr_create_tdmfs, ++ .init = au_wbr_create_init_mfs, ++ .fin = au_wbr_create_fin_mfs ++ }, ++ [AuWbrCreate_TDMFSV] = { ++ .create = au_wbr_create_tdmfs, ++ .init = au_wbr_create_init_mfs, ++ .fin = au_wbr_create_fin_mfs ++ }, ++ [AuWbrCreate_PMFS] = { ++ .create = au_wbr_create_pmfs, ++ .init = au_wbr_create_init_mfs, ++ .fin = au_wbr_create_fin_mfs ++ }, ++ [AuWbrCreate_PMFSV] = { ++ .create = au_wbr_create_pmfs, ++ .init = au_wbr_create_init_mfs, ++ .fin = au_wbr_create_fin_mfs ++ }, ++ [AuWbrCreate_PMFSRR] = { ++ .create = au_wbr_create_pmfsrr, ++ .init = au_wbr_create_init_mfsrr, ++ .fin = au_wbr_create_fin_mfs ++ }, ++ [AuWbrCreate_PMFSRRV] = { ++ .create = au_wbr_create_pmfsrr, ++ .init = au_wbr_create_init_mfsrr, ++ .fin = au_wbr_create_fin_mfs ++ } ++}; +diff -Naur linux-5.15/fs/aufs/whout.c aufs5-linux-aufs5.15/fs/aufs/whout.c +--- linux-5.15/fs/aufs/whout.c 1970-01-01 03:00:00.000000000 +0300 ++++ aufs5-linux-aufs5.15/fs/aufs/whout.c 2022-03-07 13:48:09.000000000 +0300 +@@ -0,0 +1,1059 @@ ++// SPDX-License-Identifier: GPL-2.0 ++/* ++ * Copyright (C) 2005-2021 Junjiro R. Okajima ++ */ ++ ++/* ++ * whiteout for logical deletion and opaque directory ++ */ ++ ++#include "aufs.h" ++ ++#define WH_MASK 0444 ++ ++/* ++ * If a directory contains this file, then it is opaque. We start with the ++ * .wh. flag so that it is blocked by lookup. ++ */ ++static struct qstr diropq_name = QSTR_INIT(AUFS_WH_DIROPQ, ++ sizeof(AUFS_WH_DIROPQ) - 1); ++ ++/* ++ * generate whiteout name, which is NOT terminated by NULL. ++ * @name: original d_name.name ++ * @len: original d_name.len ++ * @wh: whiteout qstr ++ * returns zero when succeeds, otherwise error. ++ * succeeded value as wh->name should be freed by kfree(). ++ */ ++int au_wh_name_alloc(struct qstr *wh, const struct qstr *name) ++{ ++ char *p; ++ ++ if (unlikely(name->len > PATH_MAX - AUFS_WH_PFX_LEN)) ++ return -ENAMETOOLONG; ++ ++ wh->len = name->len + AUFS_WH_PFX_LEN; ++ p = kmalloc(wh->len, GFP_NOFS); ++ wh->name = p; ++ if (p) { ++ memcpy(p, AUFS_WH_PFX, AUFS_WH_PFX_LEN); ++ memcpy(p + AUFS_WH_PFX_LEN, name->name, name->len); ++ /* smp_mb(); */ ++ return 0; ++ } ++ return -ENOMEM; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++/* ++ * test if the @wh_name exists under @h_ppath. ++ * @try_sio specifies the necessary of super-io. ++ */ ++int au_wh_test(struct user_namespace *h_userns, struct path *h_ppath, ++ struct qstr *wh_name, int try_sio) ++{ ++ int err; ++ struct dentry *wh_dentry; ++ ++ if (!try_sio) ++ wh_dentry = vfsub_lkup_one(wh_name, h_ppath); ++ else ++ wh_dentry = au_sio_lkup_one(h_userns, wh_name, h_ppath); ++ err = PTR_ERR(wh_dentry); ++ if (IS_ERR(wh_dentry)) { ++ if (err == -ENAMETOOLONG) ++ err = 0; ++ goto out; ++ } ++ ++ err = 0; ++ if (d_is_negative(wh_dentry)) ++ goto out_wh; /* success */ ++ ++ err = 1; ++ if (d_is_reg(wh_dentry)) ++ goto out_wh; /* success */ ++ ++ err = -EIO; ++ AuIOErr("%pd Invalid whiteout entry type 0%o.\n", ++ wh_dentry, d_inode(wh_dentry)->i_mode); ++ ++out_wh: ++ dput(wh_dentry); ++out: ++ return err; ++} ++ ++/* ++ * test if the @h_path->dentry sets opaque or not. ++ */ ++int au_diropq_test(struct user_namespace *h_userns, struct path *h_path) ++{ ++ int err; ++ struct inode *h_dir; ++ ++ h_dir = d_inode(h_path->dentry); ++ err = au_wh_test(h_userns, h_path, &diropq_name, ++ au_test_h_perm_sio(h_userns, h_dir, MAY_EXEC)); ++ return err; ++} ++ ++/* ++ * returns a negative dentry whose name is unique and temporary. ++ */ ++struct dentry *au_whtmp_lkup(struct dentry *h_parent, struct au_branch *br, ++ struct qstr *prefix) ++{ ++ struct dentry *dentry; ++ int i; ++ char defname[NAME_MAX - AUFS_MAX_NAMELEN + DNAME_INLINE_LEN + 1], ++ *name, *p; ++ /* strict atomic_t is unnecessary here */ ++ static unsigned short cnt; ++ struct qstr qs; ++ struct path h_ppath; ++ struct user_namespace *h_userns; ++ ++ BUILD_BUG_ON(sizeof(cnt) * 2 > AUFS_WH_TMP_LEN); ++ ++ name = defname; ++ qs.len = sizeof(defname) - DNAME_INLINE_LEN + prefix->len - 1; ++ if (unlikely(prefix->len > DNAME_INLINE_LEN)) { ++ dentry = ERR_PTR(-ENAMETOOLONG); ++ if (unlikely(qs.len > NAME_MAX)) ++ goto out; ++ dentry = ERR_PTR(-ENOMEM); ++ name = kmalloc(qs.len + 1, GFP_NOFS); ++ if (unlikely(!name)) ++ goto out; ++ } ++ ++ /* doubly whiteout-ed */ ++ memcpy(name, AUFS_WH_PFX AUFS_WH_PFX, AUFS_WH_PFX_LEN * 2); ++ p = name + AUFS_WH_PFX_LEN * 2; ++ memcpy(p, prefix->name, prefix->len); ++ p += prefix->len; ++ *p++ = '.'; ++ AuDebugOn(name + qs.len + 1 - p <= AUFS_WH_TMP_LEN); ++ ++ h_ppath.dentry = h_parent; ++ h_ppath.mnt = au_br_mnt(br); ++ h_userns = au_br_userns(br); ++ qs.name = name; ++ for (i = 0; i < 3; i++) { ++ sprintf(p, "%.*x", AUFS_WH_TMP_LEN, cnt++); ++ dentry = au_sio_lkup_one(h_userns, &qs, &h_ppath); ++ if (IS_ERR(dentry) || d_is_negative(dentry)) ++ goto out_name; ++ dput(dentry); ++ } ++ /* pr_warn("could not get random name\n"); */ ++ dentry = ERR_PTR(-EEXIST); ++ AuDbg("%.*s\n", AuLNPair(&qs)); ++ BUG(); ++ ++out_name: ++ if (name != defname) ++ au_kfree_try_rcu(name); ++out: ++ AuTraceErrPtr(dentry); ++ return dentry; ++} ++ ++/* ++ * rename the @h_dentry on @br to the whiteouted temporary name. ++ */ ++int au_whtmp_ren(struct dentry *h_dentry, struct au_branch *br) ++{ ++ int err; ++ struct path h_path = { ++ .mnt = au_br_mnt(br) ++ }; ++ struct inode *h_dir, *delegated; ++ struct dentry *h_parent; ++ ++ h_parent = h_dentry->d_parent; /* dir inode is locked */ ++ h_dir = d_inode(h_parent); ++ IMustLock(h_dir); ++ ++ h_path.dentry = au_whtmp_lkup(h_parent, br, &h_dentry->d_name); ++ err = PTR_ERR(h_path.dentry); ++ if (IS_ERR(h_path.dentry)) ++ goto out; ++ ++ /* under the same dir, no need to lock_rename() */ ++ delegated = NULL; ++ err = vfsub_rename(h_dir, h_dentry, h_dir, &h_path, &delegated, ++ /*flags*/0); ++ AuTraceErr(err); ++ if (unlikely(err == -EWOULDBLOCK)) { ++ pr_warn("cannot retry for NFSv4 delegation" ++ " for an internal rename\n"); ++ iput(delegated); ++ } ++ dput(h_path.dentry); ++ ++out: ++ AuTraceErr(err); ++ return err; ++} ++ ++/* ---------------------------------------------------------------------- */ ++/* ++ * functions for removing a whiteout ++ */ ++ ++static int do_unlink_wh(struct inode *h_dir, struct path *h_path) ++{ ++ int err, force; ++ struct inode *delegated; ++ ++ /* ++ * forces superio when the dir has a sticky bit. ++ * this may be a violation of unix fs semantics. ++ */ ++ force = (h_dir->i_mode & S_ISVTX) ++ && !uid_eq(current_fsuid(), d_inode(h_path->dentry)->i_uid); ++ delegated = NULL; ++ err = vfsub_unlink(h_dir, h_path, &delegated, force); ++ if (unlikely(err == -EWOULDBLOCK)) { ++ pr_warn("cannot retry for NFSv4 delegation" ++ " for an internal unlink\n"); ++ iput(delegated); ++ } ++ return err; ++} ++ ++int au_wh_unlink_dentry(struct inode *h_dir, struct path *h_path, ++ struct dentry *dentry) ++{ ++ int err; ++ ++ err = do_unlink_wh(h_dir, h_path); ++ if (!err && dentry) ++ au_set_dbwh(dentry, -1); ++ ++ return err; ++} ++ ++static int unlink_wh_name(struct path *h_ppath, struct qstr *wh) ++{ ++ int err; ++ struct path h_path; ++ ++ err = 0; ++ h_path.dentry = vfsub_lkup_one(wh, h_ppath); ++ if (IS_ERR(h_path.dentry)) ++ err = PTR_ERR(h_path.dentry); ++ else { ++ if (d_is_reg(h_path.dentry)) { ++ h_path.mnt = h_ppath->mnt; ++ err = do_unlink_wh(d_inode(h_ppath->dentry), &h_path); ++ } ++ dput(h_path.dentry); ++ } ++ ++ return err; ++} ++ ++/* ---------------------------------------------------------------------- */ ++/* ++ * initialize/clean whiteout for a branch ++ */ ++ ++static void au_wh_clean(struct inode *h_dir, struct path *whpath, ++ const int isdir) ++{ ++ int err; ++ struct inode *delegated; ++ ++ if (d_is_negative(whpath->dentry)) ++ return; ++ ++ if (isdir) ++ err = vfsub_rmdir(h_dir, whpath); ++ else { ++ delegated = NULL; ++ err = vfsub_unlink(h_dir, whpath, &delegated, /*force*/0); ++ if (unlikely(err == -EWOULDBLOCK)) { ++ pr_warn("cannot retry for NFSv4 delegation" ++ " for an internal unlink\n"); ++ iput(delegated); ++ } ++ } ++ if (unlikely(err)) ++ pr_warn("failed removing %pd (%d), ignored.\n", ++ whpath->dentry, err); ++} ++ ++static int test_linkable(struct dentry *h_root) ++{ ++ struct inode *h_dir = d_inode(h_root); ++ ++ if (h_dir->i_op->link) ++ return 0; ++ ++ pr_err("%pd (%s) doesn't support link(2), use noplink and rw+nolwh\n", ++ h_root, au_sbtype(h_root->d_sb)); ++ return -ENOSYS; /* the branch doesn't have its ->link() */ ++} ++ ++/* todo: should this mkdir be done in /sbin/mount.aufs helper? */ ++static int au_whdir(struct inode *h_dir, struct path *path) ++{ ++ int err; ++ ++ err = -EEXIST; ++ if (d_is_negative(path->dentry)) { ++ int mode = 0700; ++ ++ if (au_test_nfs(path->dentry->d_sb)) ++ mode |= 0111; ++ err = vfsub_mkdir(h_dir, path, mode); ++ } else if (d_is_dir(path->dentry)) ++ err = 0; ++ else ++ pr_err("unknown %pd exists\n", path->dentry); ++ ++ return err; ++} ++ ++struct au_wh_base { ++ const struct qstr *name; ++ struct dentry *dentry; ++}; ++ ++static void au_wh_init_ro(struct inode *h_dir, struct au_wh_base base[], ++ struct path *h_path) ++{ ++ h_path->dentry = base[AuBrWh_BASE].dentry; ++ au_wh_clean(h_dir, h_path, /*isdir*/0); ++ h_path->dentry = base[AuBrWh_PLINK].dentry; ++ au_wh_clean(h_dir, h_path, /*isdir*/1); ++ h_path->dentry = base[AuBrWh_ORPH].dentry; ++ au_wh_clean(h_dir, h_path, /*isdir*/1); ++} ++ ++/* ++ * returns tri-state, ++ * minus: error, caller should print the message ++ * zero: success ++ * plus: error, caller should NOT print the message ++ */ ++static int au_wh_init_rw_nolink(struct dentry *h_root, struct au_wbr *wbr, ++ int do_plink, struct au_wh_base base[], ++ struct path *h_path) ++{ ++ int err; ++ struct inode *h_dir; ++ ++ h_dir = d_inode(h_root); ++ h_path->dentry = base[AuBrWh_BASE].dentry; ++ au_wh_clean(h_dir, h_path, /*isdir*/0); ++ h_path->dentry = base[AuBrWh_PLINK].dentry; ++ if (do_plink) { ++ err = test_linkable(h_root); ++ if (unlikely(err)) { ++ err = 1; ++ goto out; ++ } ++ ++ err = au_whdir(h_dir, h_path); ++ if (unlikely(err)) ++ goto out; ++ wbr->wbr_plink = dget(base[AuBrWh_PLINK].dentry); ++ } else ++ au_wh_clean(h_dir, h_path, /*isdir*/1); ++ h_path->dentry = base[AuBrWh_ORPH].dentry; ++ err = au_whdir(h_dir, h_path); ++ if (unlikely(err)) ++ goto out; ++ wbr->wbr_orph = dget(base[AuBrWh_ORPH].dentry); ++ ++out: ++ return err; ++} ++ ++/* ++ * for the moment, aufs supports the branch filesystem which does not support ++ * link(2). testing on FAT which does not support i_op->setattr() fully either, ++ * copyup failed. finally, such filesystem will not be used as the writable ++ * branch. ++ * ++ * returns tri-state, see above. ++ */ ++static int au_wh_init_rw(struct dentry *h_root, struct au_wbr *wbr, ++ int do_plink, struct au_wh_base base[], ++ struct path *h_path) ++{ ++ int err; ++ struct inode *h_dir; ++ ++ WbrWhMustWriteLock(wbr); ++ ++ err = test_linkable(h_root); ++ if (unlikely(err)) { ++ err = 1; ++ goto out; ++ } ++ ++ /* ++ * todo: should this create be done in /sbin/mount.aufs helper? ++ */ ++ err = -EEXIST; ++ h_dir = d_inode(h_root); ++ if (d_is_negative(base[AuBrWh_BASE].dentry)) { ++ h_path->dentry = base[AuBrWh_BASE].dentry; ++ err = vfsub_create(h_dir, h_path, WH_MASK, /*want_excl*/true); ++ } else if (d_is_reg(base[AuBrWh_BASE].dentry)) ++ err = 0; ++ else ++ pr_err("unknown %pd2 exists\n", base[AuBrWh_BASE].dentry); ++ if (unlikely(err)) ++ goto out; ++ ++ h_path->dentry = base[AuBrWh_PLINK].dentry; ++ if (do_plink) { ++ err = au_whdir(h_dir, h_path); ++ if (unlikely(err)) ++ goto out; ++ wbr->wbr_plink = dget(base[AuBrWh_PLINK].dentry); ++ } else ++ au_wh_clean(h_dir, h_path, /*isdir*/1); ++ wbr->wbr_whbase = dget(base[AuBrWh_BASE].dentry); ++ ++ h_path->dentry = base[AuBrWh_ORPH].dentry; ++ err = au_whdir(h_dir, h_path); ++ if (unlikely(err)) ++ goto out; ++ wbr->wbr_orph = dget(base[AuBrWh_ORPH].dentry); ++ ++out: ++ return err; ++} ++ ++/* ++ * initialize the whiteout base file/dir for @br. ++ */ ++int au_wh_init(struct au_branch *br, struct super_block *sb) ++{ ++ int err, i; ++ const unsigned char do_plink ++ = !!au_opt_test(au_mntflags(sb), PLINK); ++ struct inode *h_dir; ++ struct path path = br->br_path; ++ struct dentry *h_root = path.dentry; ++ struct au_wbr *wbr = br->br_wbr; ++ static const struct qstr base_name[] = { ++ [AuBrWh_BASE] = QSTR_INIT(AUFS_BASE_NAME, ++ sizeof(AUFS_BASE_NAME) - 1), ++ [AuBrWh_PLINK] = QSTR_INIT(AUFS_PLINKDIR_NAME, ++ sizeof(AUFS_PLINKDIR_NAME) - 1), ++ [AuBrWh_ORPH] = QSTR_INIT(AUFS_ORPHDIR_NAME, ++ sizeof(AUFS_ORPHDIR_NAME) - 1) ++ }; ++ struct au_wh_base base[] = { ++ [AuBrWh_BASE] = { ++ .name = base_name + AuBrWh_BASE, ++ .dentry = NULL ++ }, ++ [AuBrWh_PLINK] = { ++ .name = base_name + AuBrWh_PLINK, ++ .dentry = NULL ++ }, ++ [AuBrWh_ORPH] = { ++ .name = base_name + AuBrWh_ORPH, ++ .dentry = NULL ++ } ++ }; ++ ++ if (wbr) ++ WbrWhMustWriteLock(wbr); ++ ++ for (i = 0; i < AuBrWh_Last; i++) { ++ /* doubly whiteouted */ ++ struct dentry *d; ++ ++ d = au_wh_lkup(h_root, (void *)base[i].name, br); ++ err = PTR_ERR(d); ++ if (IS_ERR(d)) ++ goto out; ++ ++ base[i].dentry = d; ++ AuDebugOn(wbr ++ && wbr->wbr_wh[i] ++ && wbr->wbr_wh[i] != base[i].dentry); ++ } ++ ++ if (wbr) ++ for (i = 0; i < AuBrWh_Last; i++) { ++ dput(wbr->wbr_wh[i]); ++ wbr->wbr_wh[i] = NULL; ++ } ++ ++ err = 0; ++ if (!au_br_writable(br->br_perm)) { ++ h_dir = d_inode(h_root); ++ au_wh_init_ro(h_dir, base, &path); ++ } else if (!au_br_wh_linkable(br->br_perm)) { ++ err = au_wh_init_rw_nolink(h_root, wbr, do_plink, base, &path); ++ if (err > 0) ++ goto out; ++ else if (err) ++ goto out_err; ++ } else { ++ err = au_wh_init_rw(h_root, wbr, do_plink, base, &path); ++ if (err > 0) ++ goto out; ++ else if (err) ++ goto out_err; ++ } ++ goto out; /* success */ ++ ++out_err: ++ pr_err("an error(%d) on the writable branch %pd(%s)\n", ++ err, h_root, au_sbtype(h_root->d_sb)); ++out: ++ for (i = 0; i < AuBrWh_Last; i++) ++ dput(base[i].dentry); ++ return err; ++} ++ ++/* ---------------------------------------------------------------------- */ ++/* ++ * whiteouts are all hard-linked usually. ++ * when its link count reaches a ceiling, we create a new whiteout base ++ * asynchronously. ++ */ ++ ++struct reinit_br_wh { ++ struct super_block *sb; ++ struct au_branch *br; ++}; ++ ++static void reinit_br_wh(void *arg) ++{ ++ int err; ++ aufs_bindex_t bindex; ++ struct path h_path; ++ struct reinit_br_wh *a = arg; ++ struct au_wbr *wbr; ++ struct inode *dir, *delegated; ++ struct dentry *h_root; ++ struct au_hinode *hdir; ++ ++ err = 0; ++ wbr = a->br->br_wbr; ++ /* big aufs lock */ ++ si_noflush_write_lock(a->sb); ++ if (!au_br_writable(a->br->br_perm)) ++ goto out; ++ bindex = au_br_index(a->sb, a->br->br_id); ++ if (unlikely(bindex < 0)) ++ goto out; ++ ++ di_read_lock_parent(a->sb->s_root, AuLock_IR); ++ dir = d_inode(a->sb->s_root); ++ hdir = au_hi(dir, bindex); ++ h_root = au_h_dptr(a->sb->s_root, bindex); ++ AuDebugOn(h_root != au_br_dentry(a->br)); ++ ++ au_hn_inode_lock_nested(hdir, AuLsc_I_PARENT); ++ wbr_wh_write_lock(wbr); ++ err = au_h_verify(wbr->wbr_whbase, au_opt_udba(a->sb), hdir->hi_inode, ++ h_root, a->br); ++ if (!err) { ++ h_path.dentry = wbr->wbr_whbase; ++ h_path.mnt = au_br_mnt(a->br); ++ delegated = NULL; ++ err = vfsub_unlink(hdir->hi_inode, &h_path, &delegated, ++ /*force*/0); ++ if (unlikely(err == -EWOULDBLOCK)) { ++ pr_warn("cannot retry for NFSv4 delegation" ++ " for an internal unlink\n"); ++ iput(delegated); ++ } ++ } else { ++ pr_warn("%pd is moved, ignored\n", wbr->wbr_whbase); ++ err = 0; ++ } ++ dput(wbr->wbr_whbase); ++ wbr->wbr_whbase = NULL; ++ if (!err) ++ err = au_wh_init(a->br, a->sb); ++ wbr_wh_write_unlock(wbr); ++ au_hn_inode_unlock(hdir); ++ di_read_unlock(a->sb->s_root, AuLock_IR); ++ if (!err) ++ au_fhsm_wrote(a->sb, bindex, /*force*/0); ++ ++out: ++ if (wbr) ++ atomic_dec(&wbr->wbr_wh_running); ++ au_lcnt_dec(&a->br->br_count); ++ si_write_unlock(a->sb); ++ au_nwt_done(&au_sbi(a->sb)->si_nowait); ++ au_kfree_rcu(a); ++ if (unlikely(err)) ++ AuIOErr("err %d\n", err); ++} ++ ++static void kick_reinit_br_wh(struct super_block *sb, struct au_branch *br) ++{ ++ int do_dec, wkq_err; ++ struct reinit_br_wh *arg; ++ ++ do_dec = 1; ++ if (atomic_inc_return(&br->br_wbr->wbr_wh_running) != 1) ++ goto out; ++ ++ /* ignore ENOMEM */ ++ arg = kmalloc(sizeof(*arg), GFP_NOFS); ++ if (arg) { ++ /* ++ * dec(wh_running), kfree(arg) and dec(br_count) ++ * in reinit function ++ */ ++ arg->sb = sb; ++ arg->br = br; ++ au_lcnt_inc(&br->br_count); ++ wkq_err = au_wkq_nowait(reinit_br_wh, arg, sb, /*flags*/0); ++ if (unlikely(wkq_err)) { ++ atomic_dec(&br->br_wbr->wbr_wh_running); ++ au_lcnt_dec(&br->br_count); ++ au_kfree_rcu(arg); ++ } ++ do_dec = 0; ++ } ++ ++out: ++ if (do_dec) ++ atomic_dec(&br->br_wbr->wbr_wh_running); ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++/* ++ * create the whiteout @wh. ++ */ ++static int link_or_create_wh(struct super_block *sb, aufs_bindex_t bindex, ++ struct dentry *wh) ++{ ++ int err; ++ struct path h_path = { ++ .dentry = wh ++ }; ++ struct au_branch *br; ++ struct au_wbr *wbr; ++ struct dentry *h_parent; ++ struct inode *h_dir, *delegated; ++ ++ h_parent = wh->d_parent; /* dir inode is locked */ ++ h_dir = d_inode(h_parent); ++ IMustLock(h_dir); ++ ++ br = au_sbr(sb, bindex); ++ h_path.mnt = au_br_mnt(br); ++ wbr = br->br_wbr; ++ wbr_wh_read_lock(wbr); ++ if (wbr->wbr_whbase) { ++ delegated = NULL; ++ err = vfsub_link(wbr->wbr_whbase, h_dir, &h_path, &delegated); ++ if (unlikely(err == -EWOULDBLOCK)) { ++ pr_warn("cannot retry for NFSv4 delegation" ++ " for an internal link\n"); ++ iput(delegated); ++ } ++ if (!err || err != -EMLINK) ++ goto out; ++ ++ /* link count full. re-initialize br_whbase. */ ++ kick_reinit_br_wh(sb, br); ++ } ++ ++ /* return this error in this context */ ++ err = vfsub_create(h_dir, &h_path, WH_MASK, /*want_excl*/true); ++ if (!err) ++ au_fhsm_wrote(sb, bindex, /*force*/0); ++ ++out: ++ wbr_wh_read_unlock(wbr); ++ return err; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++/* ++ * create or remove the diropq. ++ */ ++static struct dentry *do_diropq(struct dentry *dentry, aufs_bindex_t bindex, ++ unsigned int flags) ++{ ++ struct dentry *opq_dentry; ++ struct super_block *sb; ++ struct au_branch *br; ++ struct path h_path; ++ int err; ++ ++ sb = dentry->d_sb; ++ br = au_sbr(sb, bindex); ++ h_path.dentry = au_h_dptr(dentry, bindex); ++ h_path.mnt = au_br_mnt(br); ++ opq_dentry = vfsub_lkup_one(&diropq_name, &h_path); ++ if (IS_ERR(opq_dentry)) ++ goto out; ++ ++ if (au_ftest_diropq(flags, CREATE)) { ++ err = link_or_create_wh(sb, bindex, opq_dentry); ++ if (!err) { ++ au_set_dbdiropq(dentry, bindex); ++ goto out; /* success */ ++ } ++ } else { ++ h_path.dentry = opq_dentry; ++ err = do_unlink_wh(au_h_iptr(d_inode(dentry), bindex), &h_path); ++ if (!err) ++ au_set_dbdiropq(dentry, -1); ++ } ++ dput(opq_dentry); ++ opq_dentry = ERR_PTR(err); ++ ++out: ++ return opq_dentry; ++} ++ ++struct do_diropq_args { ++ struct dentry **errp; ++ struct dentry *dentry; ++ aufs_bindex_t bindex; ++ unsigned int flags; ++}; ++ ++static void call_do_diropq(void *args) ++{ ++ struct do_diropq_args *a = args; ++ *a->errp = do_diropq(a->dentry, a->bindex, a->flags); ++} ++ ++struct dentry *au_diropq_sio(struct dentry *dentry, aufs_bindex_t bindex, ++ unsigned int flags) ++{ ++ struct dentry *diropq, *h_dentry; ++ struct user_namespace *h_userns; ++ ++ h_userns = au_sbr_userns(dentry->d_sb, bindex); ++ h_dentry = au_h_dptr(dentry, bindex); ++ if (!au_test_h_perm_sio(h_userns, d_inode(h_dentry), ++ MAY_EXEC | MAY_WRITE)) ++ diropq = do_diropq(dentry, bindex, flags); ++ else { ++ int wkq_err; ++ struct do_diropq_args args = { ++ .errp = &diropq, ++ .dentry = dentry, ++ .bindex = bindex, ++ .flags = flags ++ }; ++ ++ wkq_err = au_wkq_wait(call_do_diropq, &args); ++ if (unlikely(wkq_err)) ++ diropq = ERR_PTR(wkq_err); ++ } ++ ++ return diropq; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++/* ++ * lookup whiteout dentry. ++ * @h_parent: lower parent dentry which must exist and be locked ++ * @base_name: name of dentry which will be whiteouted ++ * returns dentry for whiteout. ++ */ ++struct dentry *au_wh_lkup(struct dentry *h_parent, struct qstr *base_name, ++ struct au_branch *br) ++{ ++ int err; ++ struct qstr wh_name; ++ struct dentry *wh_dentry; ++ struct path h_path; ++ ++ err = au_wh_name_alloc(&wh_name, base_name); ++ wh_dentry = ERR_PTR(err); ++ if (!err) { ++ h_path.dentry = h_parent; ++ h_path.mnt = au_br_mnt(br); ++ wh_dentry = vfsub_lkup_one(&wh_name, &h_path); ++ au_kfree_try_rcu(wh_name.name); ++ } ++ return wh_dentry; ++} ++ ++/* ++ * link/create a whiteout for @dentry on @bindex. ++ */ ++struct dentry *au_wh_create(struct dentry *dentry, aufs_bindex_t bindex, ++ struct dentry *h_parent) ++{ ++ struct dentry *wh_dentry; ++ struct super_block *sb; ++ int err; ++ ++ sb = dentry->d_sb; ++ wh_dentry = au_wh_lkup(h_parent, &dentry->d_name, au_sbr(sb, bindex)); ++ if (!IS_ERR(wh_dentry) && d_is_negative(wh_dentry)) { ++ err = link_or_create_wh(sb, bindex, wh_dentry); ++ if (!err) { ++ au_set_dbwh(dentry, bindex); ++ au_fhsm_wrote(sb, bindex, /*force*/0); ++ } else { ++ dput(wh_dentry); ++ wh_dentry = ERR_PTR(err); ++ } ++ } ++ ++ return wh_dentry; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++/* Delete all whiteouts in this directory on branch bindex. */ ++static int del_wh_children(struct path *h_path, struct au_nhash *whlist, ++ aufs_bindex_t bindex) ++{ ++ int err; ++ unsigned long ul, n; ++ struct qstr wh_name; ++ char *p; ++ struct hlist_head *head; ++ struct au_vdir_wh *pos; ++ struct au_vdir_destr *str; ++ ++ err = -ENOMEM; ++ p = (void *)__get_free_page(GFP_NOFS); ++ wh_name.name = p; ++ if (unlikely(!wh_name.name)) ++ goto out; ++ ++ err = 0; ++ memcpy(p, AUFS_WH_PFX, AUFS_WH_PFX_LEN); ++ p += AUFS_WH_PFX_LEN; ++ n = whlist->nh_num; ++ head = whlist->nh_head; ++ for (ul = 0; !err && ul < n; ul++, head++) { ++ hlist_for_each_entry(pos, head, wh_hash) { ++ if (pos->wh_bindex != bindex) ++ continue; ++ ++ str = &pos->wh_str; ++ if (str->len + AUFS_WH_PFX_LEN <= PATH_MAX) { ++ memcpy(p, str->name, str->len); ++ wh_name.len = AUFS_WH_PFX_LEN + str->len; ++ err = unlink_wh_name(h_path, &wh_name); ++ if (!err) ++ continue; ++ break; ++ } ++ AuIOErr("whiteout name too long %.*s\n", ++ str->len, str->name); ++ err = -EIO; ++ break; ++ } ++ } ++ free_page((unsigned long)wh_name.name); ++ ++out: ++ return err; ++} ++ ++struct del_wh_children_args { ++ int *errp; ++ struct path *h_path; ++ struct au_nhash *whlist; ++ aufs_bindex_t bindex; ++}; ++ ++static void call_del_wh_children(void *args) ++{ ++ struct del_wh_children_args *a = args; ++ *a->errp = del_wh_children(a->h_path, a->whlist, a->bindex); ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++struct au_whtmp_rmdir *au_whtmp_rmdir_alloc(struct super_block *sb, gfp_t gfp) ++{ ++ struct au_whtmp_rmdir *whtmp; ++ int err; ++ unsigned int rdhash; ++ ++ SiMustAnyLock(sb); ++ ++ whtmp = kzalloc(sizeof(*whtmp), gfp); ++ if (unlikely(!whtmp)) { ++ whtmp = ERR_PTR(-ENOMEM); ++ goto out; ++ } ++ ++ /* no estimation for dir size */ ++ rdhash = au_sbi(sb)->si_rdhash; ++ if (!rdhash) ++ rdhash = AUFS_RDHASH_DEF; ++ err = au_nhash_alloc(&whtmp->whlist, rdhash, gfp); ++ if (unlikely(err)) { ++ au_kfree_rcu(whtmp); ++ whtmp = ERR_PTR(err); ++ } ++ ++out: ++ return whtmp; ++} ++ ++void au_whtmp_rmdir_free(struct au_whtmp_rmdir *whtmp) ++{ ++ if (whtmp->br) ++ au_lcnt_dec(&whtmp->br->br_count); ++ dput(whtmp->wh_dentry); ++ iput(whtmp->dir); ++ au_nhash_wh_free(&whtmp->whlist); ++ au_kfree_rcu(whtmp); ++} ++ ++/* ++ * rmdir the whiteouted temporary named dir @h_dentry. ++ * @whlist: whiteouted children. ++ */ ++int au_whtmp_rmdir(struct inode *dir, aufs_bindex_t bindex, ++ struct dentry *wh_dentry, struct au_nhash *whlist) ++{ ++ int err; ++ unsigned int h_nlink; ++ struct path wh_path; ++ struct inode *wh_inode, *h_dir; ++ struct au_branch *br; ++ struct user_namespace *h_userns; ++ ++ h_dir = d_inode(wh_dentry->d_parent); /* dir inode is locked */ ++ IMustLock(h_dir); ++ ++ br = au_sbr(dir->i_sb, bindex); ++ wh_path.dentry = wh_dentry; ++ wh_path.mnt = au_br_mnt(br); ++ h_userns = au_br_userns(br); ++ wh_inode = d_inode(wh_dentry); ++ inode_lock_nested(wh_inode, AuLsc_I_CHILD); ++ ++ /* ++ * someone else might change some whiteouts while we were sleeping. ++ * it means this whlist may have an obsoleted entry. ++ */ ++ if (!au_test_h_perm_sio(h_userns, wh_inode, MAY_EXEC | MAY_WRITE)) ++ err = del_wh_children(&wh_path, whlist, bindex); ++ else { ++ int wkq_err; ++ struct del_wh_children_args args = { ++ .errp = &err, ++ .h_path = &wh_path, ++ .whlist = whlist, ++ .bindex = bindex ++ }; ++ ++ wkq_err = au_wkq_wait(call_del_wh_children, &args); ++ if (unlikely(wkq_err)) ++ err = wkq_err; ++ } ++ inode_unlock(wh_inode); ++ ++ if (!err) { ++ h_nlink = h_dir->i_nlink; ++ err = vfsub_rmdir(h_dir, &wh_path); ++ /* some fs doesn't change the parent nlink in some cases */ ++ h_nlink -= h_dir->i_nlink; ++ } ++ ++ if (!err) { ++ if (au_ibtop(dir) == bindex) { ++ /* todo: dir->i_mutex is necessary */ ++ au_cpup_attr_timesizes(dir); ++ if (h_nlink) ++ vfsub_drop_nlink(dir); ++ } ++ return 0; /* success */ ++ } ++ ++ pr_warn("failed removing %pd(%d), ignored\n", wh_dentry, err); ++ return err; ++} ++ ++static void call_rmdir_whtmp(void *args) ++{ ++ int err; ++ aufs_bindex_t bindex; ++ struct au_whtmp_rmdir *a = args; ++ struct super_block *sb; ++ struct dentry *h_parent; ++ struct inode *h_dir; ++ struct au_hinode *hdir; ++ ++ /* rmdir by nfsd may cause deadlock with this i_mutex */ ++ /* inode_lock(a->dir); */ ++ err = -EROFS; ++ sb = a->dir->i_sb; ++ si_read_lock(sb, !AuLock_FLUSH); ++ if (!au_br_writable(a->br->br_perm)) ++ goto out; ++ bindex = au_br_index(sb, a->br->br_id); ++ if (unlikely(bindex < 0)) ++ goto out; ++ ++ err = -EIO; ++ ii_write_lock_parent(a->dir); ++ h_parent = dget_parent(a->wh_dentry); ++ h_dir = d_inode(h_parent); ++ hdir = au_hi(a->dir, bindex); ++ err = vfsub_mnt_want_write(au_br_mnt(a->br)); ++ if (unlikely(err)) ++ goto out_mnt; ++ au_hn_inode_lock_nested(hdir, AuLsc_I_PARENT); ++ err = au_h_verify(a->wh_dentry, au_opt_udba(sb), h_dir, h_parent, ++ a->br); ++ if (!err) ++ err = au_whtmp_rmdir(a->dir, bindex, a->wh_dentry, &a->whlist); ++ au_hn_inode_unlock(hdir); ++ vfsub_mnt_drop_write(au_br_mnt(a->br)); ++ ++out_mnt: ++ dput(h_parent); ++ ii_write_unlock(a->dir); ++out: ++ /* inode_unlock(a->dir); */ ++ au_whtmp_rmdir_free(a); ++ si_read_unlock(sb); ++ au_nwt_done(&au_sbi(sb)->si_nowait); ++ if (unlikely(err)) ++ AuIOErr("err %d\n", err); ++} ++ ++void au_whtmp_kick_rmdir(struct inode *dir, aufs_bindex_t bindex, ++ struct dentry *wh_dentry, struct au_whtmp_rmdir *args) ++{ ++ int wkq_err; ++ struct super_block *sb; ++ ++ IMustLock(dir); ++ ++ /* all post-process will be done in do_rmdir_whtmp(). */ ++ sb = dir->i_sb; ++ args->dir = au_igrab(dir); ++ args->br = au_sbr(sb, bindex); ++ au_lcnt_inc(&args->br->br_count); ++ args->wh_dentry = dget(wh_dentry); ++ wkq_err = au_wkq_nowait(call_rmdir_whtmp, args, sb, /*flags*/0); ++ if (unlikely(wkq_err)) { ++ pr_warn("rmdir error %pd (%d), ignored\n", wh_dentry, wkq_err); ++ au_whtmp_rmdir_free(args); ++ } ++} +diff -Naur linux-5.15/fs/aufs/whout.h aufs5-linux-aufs5.15/fs/aufs/whout.h +--- linux-5.15/fs/aufs/whout.h 1970-01-01 03:00:00.000000000 +0300 ++++ aufs5-linux-aufs5.15/fs/aufs/whout.h 2022-03-07 13:48:09.000000000 +0300 +@@ -0,0 +1,74 @@ ++/* SPDX-License-Identifier: GPL-2.0 */ ++/* ++ * Copyright (C) 2005-2021 Junjiro R. Okajima ++ */ ++ ++/* ++ * whiteout for logical deletion and opaque directory ++ */ ++ ++#ifndef __AUFS_WHOUT_H__ ++#define __AUFS_WHOUT_H__ ++ ++#ifdef __KERNEL__ ++ ++#include "dir.h" ++ ++/* whout.c */ ++int au_wh_name_alloc(struct qstr *wh, const struct qstr *name); ++int au_wh_test(struct user_namespace *h_userns, struct path *h_ppath, ++ struct qstr *wh_name, int try_sio); ++int au_diropq_test(struct user_namespace *h_userns, struct path *h_path); ++struct au_branch; ++struct dentry *au_whtmp_lkup(struct dentry *h_parent, struct au_branch *br, ++ struct qstr *prefix); ++int au_whtmp_ren(struct dentry *h_dentry, struct au_branch *br); ++int au_wh_unlink_dentry(struct inode *h_dir, struct path *h_path, ++ struct dentry *dentry); ++int au_wh_init(struct au_branch *br, struct super_block *sb); ++ ++/* diropq flags */ ++#define AuDiropq_CREATE 1 ++#define au_ftest_diropq(flags, name) ((flags) & AuDiropq_##name) ++#define au_fset_diropq(flags, name) \ ++ do { (flags) |= AuDiropq_##name; } while (0) ++#define au_fclr_diropq(flags, name) \ ++ do { (flags) &= ~AuDiropq_##name; } while (0) ++ ++struct dentry *au_diropq_sio(struct dentry *dentry, aufs_bindex_t bindex, ++ unsigned int flags); ++struct dentry *au_wh_lkup(struct dentry *h_parent, struct qstr *base_name, ++ struct au_branch *br); ++struct dentry *au_wh_create(struct dentry *dentry, aufs_bindex_t bindex, ++ struct dentry *h_parent); ++ ++/* real rmdir for the whiteout-ed dir */ ++struct au_whtmp_rmdir { ++ struct inode *dir; ++ struct au_branch *br; ++ struct dentry *wh_dentry; ++ struct au_nhash whlist; ++}; ++ ++struct au_whtmp_rmdir *au_whtmp_rmdir_alloc(struct super_block *sb, gfp_t gfp); ++void au_whtmp_rmdir_free(struct au_whtmp_rmdir *whtmp); ++int au_whtmp_rmdir(struct inode *dir, aufs_bindex_t bindex, ++ struct dentry *wh_dentry, struct au_nhash *whlist); ++void au_whtmp_kick_rmdir(struct inode *dir, aufs_bindex_t bindex, ++ struct dentry *wh_dentry, struct au_whtmp_rmdir *args); ++ ++/* ---------------------------------------------------------------------- */ ++ ++static inline struct dentry *au_diropq_create(struct dentry *dentry, ++ aufs_bindex_t bindex) ++{ ++ return au_diropq_sio(dentry, bindex, AuDiropq_CREATE); ++} ++ ++static inline int au_diropq_remove(struct dentry *dentry, aufs_bindex_t bindex) ++{ ++ return PTR_ERR(au_diropq_sio(dentry, bindex, !AuDiropq_CREATE)); ++} ++ ++#endif /* __KERNEL__ */ ++#endif /* __AUFS_WHOUT_H__ */ +diff -Naur linux-5.15/fs/aufs/wkq.c aufs5-linux-aufs5.15/fs/aufs/wkq.c +--- linux-5.15/fs/aufs/wkq.c 1970-01-01 03:00:00.000000000 +0300 ++++ aufs5-linux-aufs5.15/fs/aufs/wkq.c 2022-03-07 13:48:09.000000000 +0300 +@@ -0,0 +1,359 @@ ++// SPDX-License-Identifier: GPL-2.0 ++/* ++ * Copyright (C) 2005-2021 Junjiro R. Okajima ++ */ ++ ++/* ++ * workqueue for asynchronous/super-io operations ++ * todo: try new credential scheme ++ */ ++ ++#include ++#include "aufs.h" ++ ++/* internal workqueue named AUFS_WKQ_NAME */ ++ ++static struct workqueue_struct *au_wkq; ++ ++struct au_wkinfo { ++ struct work_struct wk; ++ struct kobject *kobj; ++ ++ unsigned int flags; /* see wkq.h */ ++ ++ au_wkq_func_t func; ++ void *args; ++ ++#ifdef CONFIG_LOCKDEP ++ int dont_check; ++ struct held_lock **hlock; ++#endif ++ ++ struct completion *comp; ++}; ++ ++/* ---------------------------------------------------------------------- */ ++/* ++ * Aufs passes some operations to the workqueue such as the internal copyup. ++ * This scheme looks rather unnatural for LOCKDEP debugging feature, since the ++ * job run by workqueue depends upon the locks acquired in the other task. ++ * Delegating a small operation to the workqueue, aufs passes its lockdep ++ * information too. And the job in the workqueue restores the info in order to ++ * pretend as if it acquired those locks. This is just to make LOCKDEP work ++ * correctly and expectedly. ++ */ ++ ++#ifndef CONFIG_LOCKDEP ++AuStubInt0(au_wkq_lockdep_alloc, struct au_wkinfo *wkinfo); ++AuStubVoid(au_wkq_lockdep_free, struct au_wkinfo *wkinfo); ++AuStubVoid(au_wkq_lockdep_pre, struct au_wkinfo *wkinfo); ++AuStubVoid(au_wkq_lockdep_post, struct au_wkinfo *wkinfo); ++AuStubVoid(au_wkq_lockdep_init, struct au_wkinfo *wkinfo); ++#else ++static void au_wkq_lockdep_init(struct au_wkinfo *wkinfo) ++{ ++ wkinfo->hlock = NULL; ++ wkinfo->dont_check = 0; ++} ++ ++/* ++ * 1: matched ++ * 0: unmatched ++ */ ++static int au_wkq_lockdep_test(struct lock_class_key *key, const char *name) ++{ ++ static DEFINE_SPINLOCK(spin); ++ static struct { ++ char *name; ++ struct lock_class_key *key; ++ } a[] = { ++ { .name = "&sbinfo->si_rwsem" }, ++ { .name = "&finfo->fi_rwsem" }, ++ { .name = "&dinfo->di_rwsem" }, ++ { .name = "&iinfo->ii_rwsem" } ++ }; ++ static int set; ++ int i; ++ ++ /* lockless read from 'set.' see below */ ++ if (set == ARRAY_SIZE(a)) { ++ for (i = 0; i < ARRAY_SIZE(a); i++) ++ if (a[i].key == key) ++ goto match; ++ goto unmatch; ++ } ++ ++ spin_lock(&spin); ++ if (set) ++ for (i = 0; i < ARRAY_SIZE(a); i++) ++ if (a[i].key == key) { ++ spin_unlock(&spin); ++ goto match; ++ } ++ for (i = 0; i < ARRAY_SIZE(a); i++) { ++ if (a[i].key) { ++ if (unlikely(a[i].key == key)) { /* rare but possible */ ++ spin_unlock(&spin); ++ goto match; ++ } else ++ continue; ++ } ++ if (strstr(a[i].name, name)) { ++ /* ++ * the order of these three lines is important for the ++ * lockless read above. ++ */ ++ a[i].key = key; ++ spin_unlock(&spin); ++ set++; ++ /* AuDbg("%d, %s\n", set, name); */ ++ goto match; ++ } ++ } ++ spin_unlock(&spin); ++ goto unmatch; ++ ++match: ++ return 1; ++unmatch: ++ return 0; ++} ++ ++static int au_wkq_lockdep_alloc(struct au_wkinfo *wkinfo) ++{ ++ int err, n; ++ struct task_struct *curr; ++ struct held_lock **hl, *held_locks, *p; ++ ++ err = 0; ++ curr = current; ++ wkinfo->dont_check = lockdep_recursing(curr); ++ if (wkinfo->dont_check) ++ goto out; ++ n = curr->lockdep_depth; ++ if (!n) ++ goto out; ++ ++ err = -ENOMEM; ++ wkinfo->hlock = kmalloc_array(n + 1, sizeof(*wkinfo->hlock), GFP_NOFS); ++ if (unlikely(!wkinfo->hlock)) ++ goto out; ++ ++ err = 0; ++#if 0 /* left for debugging */ ++ if (0 && au_debug_test()) ++ lockdep_print_held_locks(curr); ++#endif ++ held_locks = curr->held_locks; ++ hl = wkinfo->hlock; ++ while (n--) { ++ p = held_locks++; ++ if (au_wkq_lockdep_test(p->instance->key, p->instance->name)) ++ *hl++ = p; ++ } ++ *hl = NULL; ++ ++out: ++ return err; ++} ++ ++static void au_wkq_lockdep_free(struct au_wkinfo *wkinfo) ++{ ++ au_kfree_try_rcu(wkinfo->hlock); ++} ++ ++static void au_wkq_lockdep_pre(struct au_wkinfo *wkinfo) ++{ ++ struct held_lock *p, **hl = wkinfo->hlock; ++ int subclass; ++ ++ if (wkinfo->dont_check) ++ lockdep_off(); ++ if (!hl) ++ return; ++ while ((p = *hl++)) { /* assignment */ ++ subclass = lockdep_hlock_class(p)->subclass; ++ /* AuDbg("%s, %d\n", p->instance->name, subclass); */ ++ if (p->read) ++ rwsem_acquire_read(p->instance, subclass, 0, ++ /*p->acquire_ip*/_RET_IP_); ++ else ++ rwsem_acquire(p->instance, subclass, 0, ++ /*p->acquire_ip*/_RET_IP_); ++ } ++} ++ ++static void au_wkq_lockdep_post(struct au_wkinfo *wkinfo) ++{ ++ struct held_lock *p, **hl = wkinfo->hlock; ++ ++ if (wkinfo->dont_check) ++ lockdep_on(); ++ if (!hl) ++ return; ++ while ((p = *hl++)) /* assignment */ ++ rwsem_release(p->instance, /*p->acquire_ip*/_RET_IP_); ++} ++#endif ++ ++static void wkq_func(struct work_struct *wk) ++{ ++ struct au_wkinfo *wkinfo = container_of(wk, struct au_wkinfo, wk); ++ ++ AuDebugOn(!uid_eq(current_fsuid(), GLOBAL_ROOT_UID)); ++ AuDebugOn(rlimit(RLIMIT_FSIZE) != RLIM_INFINITY); ++ ++ au_wkq_lockdep_pre(wkinfo); ++ wkinfo->func(wkinfo->args); ++ au_wkq_lockdep_post(wkinfo); ++ if (au_ftest_wkq(wkinfo->flags, WAIT)) ++ complete(wkinfo->comp); ++ else { ++ kobject_put(wkinfo->kobj); ++ module_put(THIS_MODULE); /* todo: ?? */ ++ au_kfree_rcu(wkinfo); ++ } ++} ++ ++/* ++ * Since struct completion is large, try allocating it dynamically. ++ */ ++#define AuWkqCompDeclare(name) struct completion *comp = NULL ++ ++static int au_wkq_comp_alloc(struct au_wkinfo *wkinfo, struct completion **comp) ++{ ++ *comp = kmalloc(sizeof(**comp), GFP_NOFS); ++ if (*comp) { ++ init_completion(*comp); ++ wkinfo->comp = *comp; ++ return 0; ++ } ++ return -ENOMEM; ++} ++ ++static void au_wkq_comp_free(struct completion *comp) ++{ ++ au_kfree_rcu(comp); ++} ++ ++static void au_wkq_run(struct au_wkinfo *wkinfo) ++{ ++ if (au_ftest_wkq(wkinfo->flags, NEST)) { ++ if (au_wkq_test()) { ++ AuWarn1("wkq from wkq, unless silly-rename on NFS," ++ " due to a dead dir by UDBA," ++ " or async xino write?\n"); ++ AuDebugOn(au_ftest_wkq(wkinfo->flags, WAIT)); ++ } ++ } else ++ au_dbg_verify_kthread(); ++ ++ if (au_ftest_wkq(wkinfo->flags, WAIT)) { ++ INIT_WORK_ONSTACK(&wkinfo->wk, wkq_func); ++ queue_work(au_wkq, &wkinfo->wk); ++ } else { ++ INIT_WORK(&wkinfo->wk, wkq_func); ++ schedule_work(&wkinfo->wk); ++ } ++} ++ ++/* ++ * Be careful. It is easy to make deadlock happen. ++ * processA: lock, wkq and wait ++ * processB: wkq and wait, lock in wkq ++ * --> deadlock ++ */ ++int au_wkq_do_wait(unsigned int flags, au_wkq_func_t func, void *args) ++{ ++ int err; ++ AuWkqCompDeclare(comp); ++ struct au_wkinfo wkinfo = { ++ .flags = flags, ++ .func = func, ++ .args = args ++ }; ++ ++ err = au_wkq_comp_alloc(&wkinfo, &comp); ++ if (unlikely(err)) ++ goto out; ++ err = au_wkq_lockdep_alloc(&wkinfo); ++ if (unlikely(err)) ++ goto out_comp; ++ if (!err) { ++ au_wkq_run(&wkinfo); ++ /* no timeout, no interrupt */ ++ wait_for_completion(wkinfo.comp); ++ } ++ au_wkq_lockdep_free(&wkinfo); ++ ++out_comp: ++ au_wkq_comp_free(comp); ++out: ++ destroy_work_on_stack(&wkinfo.wk); ++ return err; ++} ++ ++/* ++ * Note: dget/dput() in func for aufs dentries are not supported. It will be a ++ * problem in a concurrent umounting. ++ */ ++int au_wkq_nowait(au_wkq_func_t func, void *args, struct super_block *sb, ++ unsigned int flags) ++{ ++ int err; ++ struct au_wkinfo *wkinfo; ++ ++ atomic_inc(&au_sbi(sb)->si_nowait.nw_len); ++ ++ /* ++ * wkq_func() must free this wkinfo. ++ * it highly depends upon the implementation of workqueue. ++ */ ++ err = 0; ++ wkinfo = kmalloc(sizeof(*wkinfo), GFP_NOFS); ++ if (wkinfo) { ++ wkinfo->kobj = &au_sbi(sb)->si_kobj; ++ wkinfo->flags = flags & ~AuWkq_WAIT; ++ wkinfo->func = func; ++ wkinfo->args = args; ++ wkinfo->comp = NULL; ++ au_wkq_lockdep_init(wkinfo); ++ kobject_get(wkinfo->kobj); ++ __module_get(THIS_MODULE); /* todo: ?? */ ++ ++ au_wkq_run(wkinfo); ++ } else { ++ err = -ENOMEM; ++ au_nwt_done(&au_sbi(sb)->si_nowait); ++ } ++ ++ return err; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++void au_nwt_init(struct au_nowait_tasks *nwt) ++{ ++ atomic_set(&nwt->nw_len, 0); ++ /* smp_mb(); */ /* atomic_set */ ++ init_waitqueue_head(&nwt->nw_wq); ++} ++ ++void au_wkq_fin(void) ++{ ++ destroy_workqueue(au_wkq); ++} ++ ++int __init au_wkq_init(void) ++{ ++ int err; ++ ++ err = 0; ++ au_wkq = alloc_workqueue(AUFS_WKQ_NAME, 0, WQ_DFL_ACTIVE); ++ if (IS_ERR(au_wkq)) ++ err = PTR_ERR(au_wkq); ++ else if (!au_wkq) ++ err = -ENOMEM; ++ ++ return err; ++} +diff -Naur linux-5.15/fs/aufs/wkq.h aufs5-linux-aufs5.15/fs/aufs/wkq.h +--- linux-5.15/fs/aufs/wkq.h 1970-01-01 03:00:00.000000000 +0300 ++++ aufs5-linux-aufs5.15/fs/aufs/wkq.h 2022-03-07 13:48:09.000000000 +0300 +@@ -0,0 +1,76 @@ ++/* SPDX-License-Identifier: GPL-2.0 */ ++/* ++ * Copyright (C) 2005-2021 Junjiro R. Okajima ++ */ ++ ++/* ++ * workqueue for asynchronous/super-io operations ++ * todo: try new credentials management scheme ++ */ ++ ++#ifndef __AUFS_WKQ_H__ ++#define __AUFS_WKQ_H__ ++ ++#ifdef __KERNEL__ ++ ++#include ++ ++struct super_block; ++ ++/* ---------------------------------------------------------------------- */ ++ ++/* ++ * in the next operation, wait for the 'nowait' tasks in system-wide workqueue ++ */ ++struct au_nowait_tasks { ++ atomic_t nw_len; ++ wait_queue_head_t nw_wq; ++}; ++ ++/* ---------------------------------------------------------------------- */ ++ ++typedef void (*au_wkq_func_t)(void *args); ++ ++/* wkq flags */ ++#define AuWkq_WAIT 1 ++#define AuWkq_NEST (1 << 1) ++#define au_ftest_wkq(flags, name) ((flags) & AuWkq_##name) ++#define au_fset_wkq(flags, name) \ ++ do { (flags) |= AuWkq_##name; } while (0) ++#define au_fclr_wkq(flags, name) \ ++ do { (flags) &= ~AuWkq_##name; } while (0) ++ ++/* wkq.c */ ++int au_wkq_do_wait(unsigned int flags, au_wkq_func_t func, void *args); ++int au_wkq_nowait(au_wkq_func_t func, void *args, struct super_block *sb, ++ unsigned int flags); ++void au_nwt_init(struct au_nowait_tasks *nwt); ++int __init au_wkq_init(void); ++void au_wkq_fin(void); ++ ++/* ---------------------------------------------------------------------- */ ++ ++static inline int au_wkq_test(void) ++{ ++ return current->flags & PF_WQ_WORKER; ++} ++ ++static inline int au_wkq_wait(au_wkq_func_t func, void *args) ++{ ++ return au_wkq_do_wait(AuWkq_WAIT, func, args); ++} ++ ++static inline void au_nwt_done(struct au_nowait_tasks *nwt) ++{ ++ if (atomic_dec_and_test(&nwt->nw_len)) ++ wake_up_all(&nwt->nw_wq); ++} ++ ++static inline int au_nwt_flush(struct au_nowait_tasks *nwt) ++{ ++ wait_event(nwt->nw_wq, !atomic_read(&nwt->nw_len)); ++ return 0; ++} ++ ++#endif /* __KERNEL__ */ ++#endif /* __AUFS_WKQ_H__ */ +diff -Naur linux-5.15/fs/aufs/xattr.c aufs5-linux-aufs5.15/fs/aufs/xattr.c +--- linux-5.15/fs/aufs/xattr.c 1970-01-01 03:00:00.000000000 +0300 ++++ aufs5-linux-aufs5.15/fs/aufs/xattr.c 2022-03-07 13:48:09.000000000 +0300 +@@ -0,0 +1,355 @@ ++// SPDX-License-Identifier: GPL-2.0 ++/* ++ * Copyright (C) 2014-2021 Junjiro R. Okajima ++ */ ++ ++/* ++ * handling xattr functions ++ */ ++ ++#include ++#include ++#include ++#include "aufs.h" ++ ++static int au_xattr_ignore(int err, char *name, unsigned int ignore_flags) ++{ ++ if (!ignore_flags) ++ goto out; ++ switch (err) { ++ case -ENOMEM: ++ case -EDQUOT: ++ goto out; ++ } ++ ++ if ((ignore_flags & AuBrAttr_ICEX) == AuBrAttr_ICEX) { ++ err = 0; ++ goto out; ++ } ++ ++#define cmp(brattr, prefix) do { \ ++ if (!strncmp(name, XATTR_##prefix##_PREFIX, \ ++ XATTR_##prefix##_PREFIX_LEN)) { \ ++ if (ignore_flags & AuBrAttr_ICEX_##brattr) \ ++ err = 0; \ ++ goto out; \ ++ } \ ++ } while (0) ++ ++ cmp(SEC, SECURITY); ++ cmp(SYS, SYSTEM); ++ cmp(TR, TRUSTED); ++ cmp(USR, USER); ++#undef cmp ++ ++ if (ignore_flags & AuBrAttr_ICEX_OTH) ++ err = 0; ++ ++out: ++ return err; ++} ++ ++static const int au_xattr_out_of_list = AuBrAttr_ICEX_OTH << 1; ++ ++static int au_do_cpup_xattr(struct path *h_dst, struct path *h_src, ++ char *name, char **buf, unsigned int ignore_flags, ++ unsigned int verbose) ++{ ++ int err; ++ ssize_t ssz; ++ struct inode *h_idst; ++ struct dentry *h_dst_dentry, *h_src_dentry; ++ struct user_namespace *h_dst_userns, *h_src_userns; ++ ++ h_src_userns = mnt_user_ns(h_src->mnt); ++ h_src_dentry = h_src->dentry; ++ ssz = vfs_getxattr_alloc(h_src_userns, h_src_dentry, name, buf, 0, ++ GFP_NOFS); ++ err = ssz; ++ if (unlikely(err <= 0)) { ++ if (err == -ENODATA ++ || (err == -EOPNOTSUPP ++ && ((ignore_flags & au_xattr_out_of_list) ++ || (au_test_nfs_noacl(d_inode(h_src_dentry)) ++ && (!strcmp(name, XATTR_NAME_POSIX_ACL_ACCESS) ++ || !strcmp(name, ++ XATTR_NAME_POSIX_ACL_DEFAULT)))) ++ )) ++ err = 0; ++ if (err && (verbose || au_debug_test())) ++ pr_err("%s, err %d\n", name, err); ++ goto out; ++ } ++ ++ /* unlock it temporary */ ++ h_dst_userns = mnt_user_ns(h_dst->mnt); ++ h_dst_dentry = h_dst->dentry; ++ h_idst = d_inode(h_dst_dentry); ++ inode_unlock(h_idst); ++ err = vfsub_setxattr(h_dst_userns, h_dst_dentry, name, *buf, ssz, ++ /*flags*/0); ++ inode_lock_nested(h_idst, AuLsc_I_CHILD2); ++ if (unlikely(err)) { ++ if (verbose || au_debug_test()) ++ pr_err("%s, err %d\n", name, err); ++ err = au_xattr_ignore(err, name, ignore_flags); ++ } ++ ++out: ++ return err; ++} ++ ++int au_cpup_xattr(struct path *h_dst, struct path *h_src, int ignore_flags, ++ unsigned int verbose) ++{ ++ int err, unlocked, acl_access, acl_default; ++ ssize_t ssz; ++ struct dentry *h_dst_dentry, *h_src_dentry; ++ struct inode *h_isrc, *h_idst; ++ char *value, *p, *o, *e; ++ ++ /* try stopping to update the source inode while we are referencing */ ++ /* there should not be the parent-child relationship between them */ ++ h_dst_dentry = h_dst->dentry; ++ h_idst = d_inode(h_dst_dentry); ++ h_src_dentry = h_src->dentry; ++ h_isrc = d_inode(h_src_dentry); ++ inode_unlock(h_idst); ++ inode_lock_shared_nested(h_isrc, AuLsc_I_CHILD); ++ inode_lock_nested(h_idst, AuLsc_I_CHILD2); ++ unlocked = 0; ++ ++ /* some filesystems don't list POSIX ACL, for example tmpfs */ ++ ssz = vfs_listxattr(h_src_dentry, NULL, 0); ++ err = ssz; ++ if (unlikely(err < 0)) { ++ AuTraceErr(err); ++ if (err == -ENODATA ++ || err == -EOPNOTSUPP) ++ err = 0; /* ignore */ ++ goto out; ++ } ++ ++ err = 0; ++ p = NULL; ++ o = NULL; ++ if (ssz) { ++ err = -ENOMEM; ++ p = kmalloc(ssz, GFP_NOFS); ++ o = p; ++ if (unlikely(!p)) ++ goto out; ++ err = vfs_listxattr(h_src_dentry, p, ssz); ++ } ++ inode_unlock_shared(h_isrc); ++ unlocked = 1; ++ AuDbg("err %d, ssz %zd\n", err, ssz); ++ if (unlikely(err < 0)) ++ goto out_free; ++ ++ err = 0; ++ e = p + ssz; ++ value = NULL; ++ acl_access = 0; ++ acl_default = 0; ++ while (!err && p < e) { ++ acl_access |= !strncmp(p, XATTR_NAME_POSIX_ACL_ACCESS, ++ sizeof(XATTR_NAME_POSIX_ACL_ACCESS) - 1); ++ acl_default |= !strncmp(p, XATTR_NAME_POSIX_ACL_DEFAULT, ++ sizeof(XATTR_NAME_POSIX_ACL_DEFAULT) ++ - 1); ++ err = au_do_cpup_xattr(h_dst, h_src, p, &value, ignore_flags, ++ verbose); ++ p += strlen(p) + 1; ++ } ++ AuTraceErr(err); ++ ignore_flags |= au_xattr_out_of_list; ++ if (!err && !acl_access) { ++ err = au_do_cpup_xattr(h_dst, h_src, ++ XATTR_NAME_POSIX_ACL_ACCESS, &value, ++ ignore_flags, verbose); ++ AuTraceErr(err); ++ } ++ if (!err && !acl_default) { ++ err = au_do_cpup_xattr(h_dst, h_src, ++ XATTR_NAME_POSIX_ACL_DEFAULT, &value, ++ ignore_flags, verbose); ++ AuTraceErr(err); ++ } ++ ++ au_kfree_try_rcu(value); ++ ++out_free: ++ au_kfree_try_rcu(o); ++out: ++ if (!unlocked) ++ inode_unlock_shared(h_isrc); ++ AuTraceErr(err); ++ return err; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++static int au_smack_reentering(struct super_block *sb) ++{ ++#if IS_ENABLED(CONFIG_SECURITY_SMACK) || IS_ENABLED(CONFIG_SECURITY_SELINUX) ++ /* ++ * as a part of lookup, smack_d_instantiate() is called, and it calls ++ * i_op->getxattr(). ouch. ++ */ ++ return si_pid_test(sb); ++#else ++ return 0; ++#endif ++} ++ ++enum { ++ AU_XATTR_LIST, ++ AU_XATTR_GET ++}; ++ ++struct au_lgxattr { ++ int type; ++ union { ++ struct { ++ char *list; ++ size_t size; ++ } list; ++ struct { ++ const char *name; ++ void *value; ++ size_t size; ++ } get; ++ } u; ++}; ++ ++static ssize_t au_lgxattr(struct dentry *dentry, struct inode *inode, ++ struct au_lgxattr *arg) ++{ ++ ssize_t err; ++ int reenter; ++ struct path h_path; ++ struct super_block *sb; ++ ++ sb = dentry->d_sb; ++ reenter = au_smack_reentering(sb); ++ if (!reenter) { ++ err = si_read_lock(sb, AuLock_FLUSH | AuLock_NOPLM); ++ if (unlikely(err)) ++ goto out; ++ } ++ err = au_h_path_getattr(dentry, inode, /*force*/1, &h_path, reenter); ++ if (unlikely(err)) ++ goto out_si; ++ if (unlikely(!h_path.dentry)) ++ /* illegally overlapped or something */ ++ goto out_di; /* pretending success */ ++ ++ /* always topmost entry only */ ++ switch (arg->type) { ++ case AU_XATTR_LIST: ++ err = vfs_listxattr(h_path.dentry, ++ arg->u.list.list, arg->u.list.size); ++ break; ++ case AU_XATTR_GET: ++ AuDebugOn(d_is_negative(h_path.dentry)); ++ err = vfs_getxattr(mnt_user_ns(h_path.mnt), h_path.dentry, ++ arg->u.get.name, arg->u.get.value, ++ arg->u.get.size); ++ break; ++ } ++ ++out_di: ++ if (!reenter) ++ di_read_unlock(dentry, AuLock_IR); ++out_si: ++ if (!reenter) ++ si_read_unlock(sb); ++out: ++ AuTraceErr(err); ++ return err; ++} ++ ++ssize_t aufs_listxattr(struct dentry *dentry, char *list, size_t size) ++{ ++ struct au_lgxattr arg = { ++ .type = AU_XATTR_LIST, ++ .u.list = { ++ .list = list, ++ .size = size ++ }, ++ }; ++ ++ return au_lgxattr(dentry, /*inode*/NULL, &arg); ++} ++ ++static ssize_t au_getxattr(struct dentry *dentry, struct inode *inode, ++ const char *name, void *value, size_t size) ++{ ++ struct au_lgxattr arg = { ++ .type = AU_XATTR_GET, ++ .u.get = { ++ .name = name, ++ .value = value, ++ .size = size ++ }, ++ }; ++ ++ return au_lgxattr(dentry, inode, &arg); ++} ++ ++static int au_setxattr(struct dentry *dentry, struct inode *inode, ++ const char *name, const void *value, size_t size, ++ int flags) ++{ ++ struct au_sxattr arg = { ++ .type = AU_XATTR_SET, ++ .u.set = { ++ .name = name, ++ .value = value, ++ .size = size, ++ .flags = flags ++ }, ++ }; ++ ++ return au_sxattr(dentry, inode, &arg); ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++static int au_xattr_get(const struct xattr_handler *handler, ++ struct dentry *dentry, struct inode *inode, ++ const char *name, void *buffer, size_t size) ++{ ++ return au_getxattr(dentry, inode, name, buffer, size); ++} ++ ++static int au_xattr_set(const struct xattr_handler *handler, ++ struct user_namespace *userns, ++ struct dentry *dentry, struct inode *inode, ++ const char *name, const void *value, size_t size, ++ int flags) ++{ ++ return au_setxattr(dentry, inode, name, value, size, flags); ++} ++ ++static const struct xattr_handler au_xattr_handler = { ++ .name = "", ++ .prefix = "", ++ .get = au_xattr_get, ++ .set = au_xattr_set ++}; ++ ++static const struct xattr_handler *au_xattr_handlers[] = { ++#ifdef CONFIG_FS_POSIX_ACL ++ &posix_acl_access_xattr_handler, ++ &posix_acl_default_xattr_handler, ++#endif ++ &au_xattr_handler, /* must be last */ ++ NULL ++}; ++ ++void au_xattr_init(struct super_block *sb) ++{ ++ sb->s_xattr = au_xattr_handlers; ++} +diff -Naur linux-5.15/fs/aufs/xino.c aufs5-linux-aufs5.15/fs/aufs/xino.c +--- linux-5.15/fs/aufs/xino.c 1970-01-01 03:00:00.000000000 +0300 ++++ aufs5-linux-aufs5.15/fs/aufs/xino.c 2022-03-07 13:48:09.000000000 +0300 +@@ -0,0 +1,1913 @@ ++// SPDX-License-Identifier: GPL-2.0 ++/* ++ * Copyright (C) 2005-2021 Junjiro R. Okajima ++ */ ++ ++/* ++ * external inode number translation table and bitmap ++ * ++ * things to consider ++ * - the lifetime ++ * + au_xino object ++ * + XINO files (xino, xib, xigen) ++ * + dynamic debugfs entries (xiN) ++ * + static debugfs entries (xib, xigen) ++ * + static sysfs entry (xi_path) ++ * - several entry points to handle them. ++ * + mount(2) without xino option (default) ++ * + mount(2) with xino option ++ * + mount(2) with noxino option ++ * + umount(2) ++ * + remount with add/del branches ++ * + remount with xino/noxino options ++ */ ++ ++#include ++#include ++#include "aufs.h" ++ ++static aufs_bindex_t sbr_find_shared(struct super_block *sb, aufs_bindex_t btop, ++ aufs_bindex_t bbot, ++ struct super_block *h_sb) ++{ ++ /* todo: try binary-search if the branches are many */ ++ for (; btop <= bbot; btop++) ++ if (h_sb == au_sbr_sb(sb, btop)) ++ return btop; ++ return -1; ++} ++ ++/* ++ * find another branch who is on the same filesystem of the specified ++ * branch{@btgt}. search until @bbot. ++ */ ++static aufs_bindex_t is_sb_shared(struct super_block *sb, aufs_bindex_t btgt, ++ aufs_bindex_t bbot) ++{ ++ aufs_bindex_t bindex; ++ struct super_block *tgt_sb; ++ ++ tgt_sb = au_sbr_sb(sb, btgt); ++ bindex = sbr_find_shared(sb, /*btop*/0, btgt - 1, tgt_sb); ++ if (bindex < 0) ++ bindex = sbr_find_shared(sb, btgt + 1, bbot, tgt_sb); ++ ++ return bindex; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++/* ++ * stop unnecessary notify events at creating xino files ++ */ ++ ++aufs_bindex_t au_xi_root(struct super_block *sb, struct dentry *dentry) ++{ ++ aufs_bindex_t bfound, bindex, bbot; ++ struct dentry *parent; ++ struct au_branch *br; ++ ++ bfound = -1; ++ parent = dentry->d_parent; /* safe d_parent access */ ++ bbot = au_sbbot(sb); ++ for (bindex = 0; bindex <= bbot; bindex++) { ++ br = au_sbr(sb, bindex); ++ if (au_br_dentry(br) == parent) { ++ bfound = bindex; ++ break; ++ } ++ } ++ ++ AuDbg("bfound b%d\n", bfound); ++ return bfound; ++} ++ ++struct au_xino_lock_dir { ++ struct au_hinode *hdir; ++ struct dentry *parent; ++ struct inode *dir; ++}; ++ ++static struct dentry *au_dget_parent_lock(struct dentry *dentry, ++ unsigned int lsc) ++{ ++ struct dentry *parent; ++ struct inode *dir; ++ ++ parent = dget_parent(dentry); ++ dir = d_inode(parent); ++ inode_lock_nested(dir, lsc); ++#if 0 /* it should not happen */ ++ spin_lock(&dentry->d_lock); ++ if (unlikely(dentry->d_parent != parent)) { ++ spin_unlock(&dentry->d_lock); ++ inode_unlock(dir); ++ dput(parent); ++ parent = NULL; ++ goto out; ++ } ++ spin_unlock(&dentry->d_lock); ++ ++out: ++#endif ++ return parent; ++} ++ ++static void au_xino_lock_dir(struct super_block *sb, struct path *xipath, ++ struct au_xino_lock_dir *ldir) ++{ ++ aufs_bindex_t bindex; ++ ++ ldir->hdir = NULL; ++ bindex = au_xi_root(sb, xipath->dentry); ++ if (bindex >= 0) { ++ /* rw branch root */ ++ ldir->hdir = au_hi(d_inode(sb->s_root), bindex); ++ au_hn_inode_lock_nested(ldir->hdir, AuLsc_I_PARENT); ++ } else { ++ /* other */ ++ ldir->parent = au_dget_parent_lock(xipath->dentry, ++ AuLsc_I_PARENT); ++ ldir->dir = d_inode(ldir->parent); ++ } ++} ++ ++static void au_xino_unlock_dir(struct au_xino_lock_dir *ldir) ++{ ++ if (ldir->hdir) ++ au_hn_inode_unlock(ldir->hdir); ++ else { ++ inode_unlock(ldir->dir); ++ dput(ldir->parent); ++ } ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++/* ++ * create and set a new xino file ++ */ ++struct file *au_xino_create(struct super_block *sb, char *fpath, int silent, ++ int wbrtop) ++{ ++ struct file *file; ++ struct dentry *h_parent, *d; ++ struct inode *h_dir, *inode; ++ int err; ++ static DEFINE_MUTEX(mtx); ++ ++ /* ++ * at mount-time, and the xino file is the default path, ++ * hnotify is disabled so we have no notify events to ignore. ++ * when a user specified the xino, we cannot get au_hdir to be ignored. ++ */ ++ if (!wbrtop) ++ mutex_lock(&mtx); ++ file = vfsub_filp_open(fpath, O_RDWR | O_CREAT | O_EXCL | O_LARGEFILE ++ /* | __FMODE_NONOTIFY */, ++ 0666); ++ if (IS_ERR(file)) { ++ if (!wbrtop) ++ mutex_unlock(&mtx); ++ if (!silent) ++ pr_err("open %s(%ld)\n", fpath, PTR_ERR(file)); ++ return file; ++ } ++ ++ /* keep file count */ ++ err = 0; ++ d = file->f_path.dentry; ++ h_parent = au_dget_parent_lock(d, AuLsc_I_PARENT); ++ if (!wbrtop) ++ mutex_unlock(&mtx); ++ /* mnt_want_write() is unnecessary here */ ++ h_dir = d_inode(h_parent); ++ inode = file_inode(file); ++ /* no delegation since it is just created */ ++ if (inode->i_nlink) ++ err = vfsub_unlink(h_dir, &file->f_path, /*delegated*/NULL, ++ /*force*/0); ++ inode_unlock(h_dir); ++ dput(h_parent); ++ if (unlikely(err)) { ++ if (!silent) ++ pr_err("unlink %s(%d)\n", fpath, err); ++ goto out; ++ } ++ ++ err = -EINVAL; ++ if (unlikely(sb && sb == d->d_sb)) { ++ if (!silent) ++ pr_err("%s must be outside\n", fpath); ++ goto out; ++ } ++ if (unlikely(au_test_fs_bad_xino(d->d_sb))) { ++ if (!silent) ++ pr_err("xino doesn't support %s(%s)\n", ++ fpath, au_sbtype(d->d_sb)); ++ goto out; ++ } ++ return file; /* success */ ++ ++out: ++ fput(file); ++ file = ERR_PTR(err); ++ return file; ++} ++ ++/* ++ * create a new xinofile at the same place/path as @base. ++ */ ++struct file *au_xino_create2(struct super_block *sb, struct path *base, ++ struct file *copy_src) ++{ ++ struct file *file; ++ struct dentry *dentry; ++ struct inode *dir, *delegated; ++ struct qstr *name; ++ struct path ppath, path; ++ int err, do_unlock; ++ struct au_xino_lock_dir ldir; ++ ++ do_unlock = 1; ++ au_xino_lock_dir(sb, base, &ldir); ++ dentry = base->dentry; ++ ppath.dentry = dentry->d_parent; /* dir inode is locked */ ++ ppath.mnt = base->mnt; ++ dir = d_inode(ppath.dentry); ++ IMustLock(dir); ++ ++ name = &dentry->d_name; ++ path.dentry = vfsub_lookup_one_len(name->name, &ppath, name->len); ++ if (IS_ERR(path.dentry)) { ++ file = (void *)path.dentry; ++ pr_err("%pd lookup err %ld\n", dentry, PTR_ERR(path.dentry)); ++ goto out; ++ } ++ ++ /* no need to mnt_want_write() since we call dentry_open() later */ ++ err = vfs_create(mnt_user_ns(base->mnt), dir, path.dentry, 0666, NULL); ++ if (unlikely(err)) { ++ file = ERR_PTR(err); ++ pr_err("%pd create err %d\n", dentry, err); ++ goto out_dput; ++ } ++ ++ path.mnt = base->mnt; ++ file = vfsub_dentry_open(&path, ++ O_RDWR | O_CREAT | O_EXCL | O_LARGEFILE ++ /* | __FMODE_NONOTIFY */); ++ if (IS_ERR(file)) { ++ pr_err("%pd open err %ld\n", dentry, PTR_ERR(file)); ++ goto out_dput; ++ } ++ ++ delegated = NULL; ++ err = vfsub_unlink(dir, &file->f_path, &delegated, /*force*/0); ++ au_xino_unlock_dir(&ldir); ++ do_unlock = 0; ++ if (unlikely(err == -EWOULDBLOCK)) { ++ pr_warn("cannot retry for NFSv4 delegation" ++ " for an internal unlink\n"); ++ iput(delegated); ++ } ++ if (unlikely(err)) { ++ pr_err("%pd unlink err %d\n", dentry, err); ++ goto out_fput; ++ } ++ ++ if (copy_src) { ++ /* no one can touch copy_src xino */ ++ err = au_copy_file(file, copy_src, vfsub_f_size_read(copy_src)); ++ if (unlikely(err)) { ++ pr_err("%pd copy err %d\n", dentry, err); ++ goto out_fput; ++ } ++ } ++ goto out_dput; /* success */ ++ ++out_fput: ++ fput(file); ++ file = ERR_PTR(err); ++out_dput: ++ dput(path.dentry); ++out: ++ if (do_unlock) ++ au_xino_unlock_dir(&ldir); ++ return file; ++} ++ ++struct file *au_xino_file1(struct au_xino *xi) ++{ ++ struct file *file; ++ unsigned int u, nfile; ++ ++ file = NULL; ++ nfile = xi->xi_nfile; ++ for (u = 0; u < nfile; u++) { ++ file = xi->xi_file[u]; ++ if (file) ++ break; ++ } ++ ++ return file; ++} ++ ++static int au_xino_file_set(struct au_xino *xi, int idx, struct file *file) ++{ ++ int err; ++ struct file *f; ++ void *p; ++ ++ if (file) ++ get_file(file); ++ ++ err = 0; ++ f = NULL; ++ if (idx < xi->xi_nfile) { ++ f = xi->xi_file[idx]; ++ if (f) ++ fput(f); ++ } else { ++ p = au_kzrealloc(xi->xi_file, ++ sizeof(*xi->xi_file) * xi->xi_nfile, ++ sizeof(*xi->xi_file) * (idx + 1), ++ GFP_NOFS, /*may_shrink*/0); ++ if (p) { ++ MtxMustLock(&xi->xi_mtx); ++ xi->xi_file = p; ++ xi->xi_nfile = idx + 1; ++ } else { ++ err = -ENOMEM; ++ if (file) ++ fput(file); ++ goto out; ++ } ++ } ++ xi->xi_file[idx] = file; ++ ++out: ++ return err; ++} ++ ++/* ++ * if @xinew->xi is not set, then create new xigen file. ++ */ ++struct file *au_xi_new(struct super_block *sb, struct au_xi_new *xinew) ++{ ++ struct file *file; ++ int err; ++ ++ SiMustAnyLock(sb); ++ ++ file = au_xino_create2(sb, xinew->base, xinew->copy_src); ++ if (IS_ERR(file)) { ++ err = PTR_ERR(file); ++ pr_err("%s[%d], err %d\n", ++ xinew->xi ? "xino" : "xigen", ++ xinew->idx, err); ++ goto out; ++ } ++ ++ if (xinew->xi) ++ err = au_xino_file_set(xinew->xi, xinew->idx, file); ++ else { ++ BUG(); ++ /* todo: make xigen file an array */ ++ /* err = au_xigen_file_set(sb, xinew->idx, file); */ ++ } ++ fput(file); ++ if (unlikely(err)) ++ file = ERR_PTR(err); ++ ++out: ++ return file; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++/* ++ * truncate xino files ++ */ ++static int au_xino_do_trunc(struct super_block *sb, aufs_bindex_t bindex, ++ int idx, struct kstatfs *st) ++{ ++ int err; ++ blkcnt_t blocks; ++ struct file *file, *new_xino; ++ struct au_xi_new xinew = { ++ .idx = idx ++ }; ++ ++ err = 0; ++ xinew.xi = au_sbr(sb, bindex)->br_xino; ++ file = au_xino_file(xinew.xi, idx); ++ if (!file) ++ goto out; ++ ++ xinew.base = &file->f_path; ++ err = vfs_statfs(xinew.base, st); ++ if (unlikely(err)) { ++ AuErr1("statfs err %d, ignored\n", err); ++ err = 0; ++ goto out; ++ } ++ ++ blocks = file_inode(file)->i_blocks; ++ pr_info("begin truncating xino(b%d-%d), ib%llu, %llu/%llu free blks\n", ++ bindex, idx, (u64)blocks, st->f_bfree, st->f_blocks); ++ ++ xinew.copy_src = file; ++ new_xino = au_xi_new(sb, &xinew); ++ if (IS_ERR(new_xino)) { ++ err = PTR_ERR(new_xino); ++ pr_err("xino(b%d-%d), err %d, ignored\n", bindex, idx, err); ++ goto out; ++ } ++ ++ err = vfs_statfs(&new_xino->f_path, st); ++ if (!err) ++ pr_info("end truncating xino(b%d-%d), ib%llu, %llu/%llu free blks\n", ++ bindex, idx, (u64)file_inode(new_xino)->i_blocks, ++ st->f_bfree, st->f_blocks); ++ else { ++ AuErr1("statfs err %d, ignored\n", err); ++ err = 0; ++ } ++ ++out: ++ return err; ++} ++ ++int au_xino_trunc(struct super_block *sb, aufs_bindex_t bindex, int idx_begin) ++{ ++ int err, i; ++ unsigned long jiffy; ++ aufs_bindex_t bbot; ++ struct kstatfs *st; ++ struct au_branch *br; ++ struct au_xino *xi; ++ ++ err = -ENOMEM; ++ st = kmalloc(sizeof(*st), GFP_NOFS); ++ if (unlikely(!st)) ++ goto out; ++ ++ err = -EINVAL; ++ bbot = au_sbbot(sb); ++ if (unlikely(bindex < 0 || bbot < bindex)) ++ goto out_st; ++ ++ err = 0; ++ jiffy = jiffies; ++ br = au_sbr(sb, bindex); ++ xi = br->br_xino; ++ for (i = idx_begin; !err && i < xi->xi_nfile; i++) ++ err = au_xino_do_trunc(sb, bindex, i, st); ++ if (!err) ++ au_sbi(sb)->si_xino_jiffy = jiffy; ++ ++out_st: ++ au_kfree_rcu(st); ++out: ++ return err; ++} ++ ++struct xino_do_trunc_args { ++ struct super_block *sb; ++ struct au_branch *br; ++ int idx; ++}; ++ ++static void xino_do_trunc(void *_args) ++{ ++ struct xino_do_trunc_args *args = _args; ++ struct super_block *sb; ++ struct au_branch *br; ++ struct inode *dir; ++ int err, idx; ++ aufs_bindex_t bindex; ++ ++ err = 0; ++ sb = args->sb; ++ dir = d_inode(sb->s_root); ++ br = args->br; ++ idx = args->idx; ++ ++ si_noflush_write_lock(sb); ++ ii_read_lock_parent(dir); ++ bindex = au_br_index(sb, br->br_id); ++ err = au_xino_trunc(sb, bindex, idx); ++ ii_read_unlock(dir); ++ if (unlikely(err)) ++ pr_warn("err b%d, (%d)\n", bindex, err); ++ atomic_dec(&br->br_xino->xi_truncating); ++ au_lcnt_dec(&br->br_count); ++ si_write_unlock(sb); ++ au_nwt_done(&au_sbi(sb)->si_nowait); ++ au_kfree_rcu(args); ++} ++ ++/* ++ * returns the index in the xi_file array whose corresponding file is necessary ++ * to truncate, or -1 which means no need to truncate. ++ */ ++static int xino_trunc_test(struct super_block *sb, struct au_branch *br) ++{ ++ int err; ++ unsigned int u; ++ struct kstatfs st; ++ struct au_sbinfo *sbinfo; ++ struct au_xino *xi; ++ struct file *file; ++ ++ /* todo: si_xino_expire and the ratio should be customizable */ ++ sbinfo = au_sbi(sb); ++ if (time_before(jiffies, ++ sbinfo->si_xino_jiffy + sbinfo->si_xino_expire)) ++ return -1; ++ ++ /* truncation border */ ++ xi = br->br_xino; ++ for (u = 0; u < xi->xi_nfile; u++) { ++ file = au_xino_file(xi, u); ++ if (!file) ++ continue; ++ ++ err = vfs_statfs(&file->f_path, &st); ++ if (unlikely(err)) { ++ AuErr1("statfs err %d, ignored\n", err); ++ return -1; ++ } ++ if (div64_u64(st.f_bfree * 100, st.f_blocks) ++ >= AUFS_XINO_DEF_TRUNC) ++ return u; ++ } ++ ++ return -1; ++} ++ ++static void xino_try_trunc(struct super_block *sb, struct au_branch *br) ++{ ++ int idx; ++ struct xino_do_trunc_args *args; ++ int wkq_err; ++ ++ idx = xino_trunc_test(sb, br); ++ if (idx < 0) ++ return; ++ ++ if (atomic_inc_return(&br->br_xino->xi_truncating) > 1) ++ goto out; ++ ++ /* lock and kfree() will be called in trunc_xino() */ ++ args = kmalloc(sizeof(*args), GFP_NOFS); ++ if (unlikely(!args)) { ++ AuErr1("no memory\n"); ++ goto out; ++ } ++ ++ au_lcnt_inc(&br->br_count); ++ args->sb = sb; ++ args->br = br; ++ args->idx = idx; ++ wkq_err = au_wkq_nowait(xino_do_trunc, args, sb, /*flags*/0); ++ if (!wkq_err) ++ return; /* success */ ++ ++ pr_err("wkq %d\n", wkq_err); ++ au_lcnt_dec(&br->br_count); ++ au_kfree_rcu(args); ++ ++out: ++ atomic_dec(&br->br_xino->xi_truncating); ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++struct au_xi_calc { ++ int idx; ++ loff_t pos; ++}; ++ ++static void au_xi_calc(struct super_block *sb, ino_t h_ino, ++ struct au_xi_calc *calc) ++{ ++ loff_t maxent; ++ ++ maxent = au_xi_maxent(sb); ++ calc->idx = div64_u64_rem(h_ino, maxent, &calc->pos); ++ calc->pos *= sizeof(ino_t); ++} ++ ++static int au_xino_do_new_async(struct super_block *sb, struct au_branch *br, ++ struct au_xi_calc *calc) ++{ ++ int err; ++ struct file *file; ++ struct au_xino *xi = br->br_xino; ++ struct au_xi_new xinew = { ++ .xi = xi ++ }; ++ ++ SiMustAnyLock(sb); ++ ++ err = 0; ++ if (!xi) ++ goto out; ++ ++ mutex_lock(&xi->xi_mtx); ++ file = au_xino_file(xi, calc->idx); ++ if (file) ++ goto out_mtx; ++ ++ file = au_xino_file(xi, /*idx*/-1); ++ AuDebugOn(!file); ++ xinew.idx = calc->idx; ++ xinew.base = &file->f_path; ++ /* xinew.copy_src = NULL; */ ++ file = au_xi_new(sb, &xinew); ++ if (IS_ERR(file)) ++ err = PTR_ERR(file); ++ ++out_mtx: ++ mutex_unlock(&xi->xi_mtx); ++out: ++ return err; ++} ++ ++struct au_xino_do_new_async_args { ++ struct super_block *sb; ++ struct au_branch *br; ++ struct au_xi_calc calc; ++ ino_t ino; ++}; ++ ++struct au_xi_writing { ++ struct hlist_bl_node node; ++ ino_t h_ino, ino; ++}; ++ ++static int au_xino_do_write(struct file *file, struct au_xi_calc *calc, ++ ino_t ino); ++ ++static void au_xino_call_do_new_async(void *args) ++{ ++ struct au_xino_do_new_async_args *a = args; ++ struct au_branch *br; ++ struct super_block *sb; ++ struct au_sbinfo *sbi; ++ struct inode *root; ++ struct file *file; ++ struct au_xi_writing *del, *p; ++ struct hlist_bl_head *hbl; ++ struct hlist_bl_node *pos; ++ int err; ++ ++ br = a->br; ++ sb = a->sb; ++ sbi = au_sbi(sb); ++ si_noflush_read_lock(sb); ++ root = d_inode(sb->s_root); ++ ii_read_lock_child(root); ++ err = au_xino_do_new_async(sb, br, &a->calc); ++ if (unlikely(err)) { ++ AuIOErr("err %d\n", err); ++ goto out; ++ } ++ ++ file = au_xino_file(br->br_xino, a->calc.idx); ++ AuDebugOn(!file); ++ err = au_xino_do_write(file, &a->calc, a->ino); ++ if (unlikely(err)) { ++ AuIOErr("err %d\n", err); ++ goto out; ++ } ++ ++ del = NULL; ++ hbl = &br->br_xino->xi_writing; ++ hlist_bl_lock(hbl); ++ au_hbl_for_each(pos, hbl) { ++ p = container_of(pos, struct au_xi_writing, node); ++ if (p->ino == a->ino) { ++ del = p; ++ hlist_bl_del(&p->node); ++ break; ++ } ++ } ++ hlist_bl_unlock(hbl); ++ au_kfree_rcu(del); ++ ++out: ++ au_lcnt_dec(&br->br_count); ++ ii_read_unlock(root); ++ si_read_unlock(sb); ++ au_nwt_done(&sbi->si_nowait); ++ au_kfree_rcu(a); ++} ++ ++/* ++ * create a new xino file asynchronously ++ */ ++static int au_xino_new_async(struct super_block *sb, struct au_branch *br, ++ struct au_xi_calc *calc, ino_t ino) ++{ ++ int err; ++ struct au_xino_do_new_async_args *arg; ++ ++ err = -ENOMEM; ++ arg = kmalloc(sizeof(*arg), GFP_NOFS); ++ if (unlikely(!arg)) ++ goto out; ++ ++ arg->sb = sb; ++ arg->br = br; ++ arg->calc = *calc; ++ arg->ino = ino; ++ au_lcnt_inc(&br->br_count); ++ err = au_wkq_nowait(au_xino_call_do_new_async, arg, sb, AuWkq_NEST); ++ if (unlikely(err)) { ++ pr_err("wkq %d\n", err); ++ au_lcnt_dec(&br->br_count); ++ au_kfree_rcu(arg); ++ } ++ ++out: ++ return err; ++} ++ ++/* ++ * read @ino from xinofile for the specified branch{@sb, @bindex} ++ * at the position of @h_ino. ++ */ ++int au_xino_read(struct super_block *sb, aufs_bindex_t bindex, ino_t h_ino, ++ ino_t *ino) ++{ ++ int err; ++ ssize_t sz; ++ struct au_xi_calc calc; ++ struct au_sbinfo *sbinfo; ++ struct file *file; ++ struct au_xino *xi; ++ struct hlist_bl_head *hbl; ++ struct hlist_bl_node *pos; ++ struct au_xi_writing *p; ++ ++ *ino = 0; ++ if (!au_opt_test(au_mntflags(sb), XINO)) ++ return 0; /* no xino */ ++ ++ err = 0; ++ au_xi_calc(sb, h_ino, &calc); ++ xi = au_sbr(sb, bindex)->br_xino; ++ file = au_xino_file(xi, calc.idx); ++ if (!file) { ++ hbl = &xi->xi_writing; ++ hlist_bl_lock(hbl); ++ au_hbl_for_each(pos, hbl) { ++ p = container_of(pos, struct au_xi_writing, node); ++ if (p->h_ino == h_ino) { ++ AuDbg("hi%llu, i%llu, found\n", ++ (u64)p->h_ino, (u64)p->ino); ++ *ino = p->ino; ++ break; ++ } ++ } ++ hlist_bl_unlock(hbl); ++ return 0; ++ } else if (vfsub_f_size_read(file) < calc.pos + sizeof(*ino)) ++ return 0; /* no xino */ ++ ++ sbinfo = au_sbi(sb); ++ sz = xino_fread(file, ino, sizeof(*ino), &calc.pos); ++ if (sz == sizeof(*ino)) ++ return 0; /* success */ ++ ++ err = sz; ++ if (unlikely(sz >= 0)) { ++ err = -EIO; ++ AuIOErr("xino read error (%zd)\n", sz); ++ } ++ return err; ++} ++ ++static int au_xino_do_write(struct file *file, struct au_xi_calc *calc, ++ ino_t ino) ++{ ++ ssize_t sz; ++ ++ sz = xino_fwrite(file, &ino, sizeof(ino), &calc->pos); ++ if (sz == sizeof(ino)) ++ return 0; /* success */ ++ ++ AuIOErr("write failed (%zd)\n", sz); ++ return -EIO; ++} ++ ++/* ++ * write @ino to the xinofile for the specified branch{@sb, @bindex} ++ * at the position of @h_ino. ++ * even if @ino is zero, it is written to the xinofile and means no entry. ++ * if the size of the xino file on a specific filesystem exceeds the watermark, ++ * try truncating it. ++ */ ++int au_xino_write(struct super_block *sb, aufs_bindex_t bindex, ino_t h_ino, ++ ino_t ino) ++{ ++ int err; ++ unsigned int mnt_flags; ++ struct au_xi_calc calc; ++ struct file *file; ++ struct au_branch *br; ++ struct au_xino *xi; ++ struct au_xi_writing *p; ++ ++ SiMustAnyLock(sb); ++ ++ mnt_flags = au_mntflags(sb); ++ if (!au_opt_test(mnt_flags, XINO)) ++ return 0; ++ ++ au_xi_calc(sb, h_ino, &calc); ++ br = au_sbr(sb, bindex); ++ xi = br->br_xino; ++ file = au_xino_file(xi, calc.idx); ++ if (!file) { ++ /* store the inum pair into the list */ ++ p = kmalloc(sizeof(*p), GFP_NOFS | __GFP_NOFAIL); ++ p->h_ino = h_ino; ++ p->ino = ino; ++ au_hbl_add(&p->node, &xi->xi_writing); ++ ++ /* create and write a new xino file asynchronously */ ++ err = au_xino_new_async(sb, br, &calc, ino); ++ if (!err) ++ return 0; /* success */ ++ goto out; ++ } ++ ++ err = au_xino_do_write(file, &calc, ino); ++ if (!err) { ++ br = au_sbr(sb, bindex); ++ if (au_opt_test(mnt_flags, TRUNC_XINO) ++ && au_test_fs_trunc_xino(au_br_sb(br))) ++ xino_try_trunc(sb, br); ++ return 0; /* success */ ++ } ++ ++out: ++ AuIOErr("write failed (%d)\n", err); ++ return -EIO; ++} ++ ++static ssize_t xino_fread_wkq(struct file *file, void *buf, size_t size, ++ loff_t *pos); ++ ++/* todo: unnecessary to support mmap_sem since kernel-space? */ ++ssize_t xino_fread(struct file *file, void *kbuf, size_t size, loff_t *pos) ++{ ++ ssize_t err; ++ int i; ++ const int prevent_endless = 10; ++ ++ i = 0; ++ do { ++ err = vfsub_read_k(file, kbuf, size, pos); ++ if (err == -EINTR ++ && !au_wkq_test() ++ && fatal_signal_pending(current)) { ++ err = xino_fread_wkq(file, kbuf, size, pos); ++ BUG_ON(err == -EINTR); ++ } ++ } while (i++ < prevent_endless ++ && (err == -EAGAIN || err == -EINTR)); ++ ++#if 0 /* reserved for future use */ ++ if (err > 0) ++ fsnotify_access(file->f_path.dentry); ++#endif ++ ++ return err; ++} ++ ++struct xino_fread_args { ++ ssize_t *errp; ++ struct file *file; ++ void *buf; ++ size_t size; ++ loff_t *pos; ++}; ++ ++static void call_xino_fread(void *args) ++{ ++ struct xino_fread_args *a = args; ++ *a->errp = xino_fread(a->file, a->buf, a->size, a->pos); ++} ++ ++static ssize_t xino_fread_wkq(struct file *file, void *buf, size_t size, ++ loff_t *pos) ++{ ++ ssize_t err; ++ int wkq_err; ++ struct xino_fread_args args = { ++ .errp = &err, ++ .file = file, ++ .buf = buf, ++ .size = size, ++ .pos = pos ++ }; ++ ++ wkq_err = au_wkq_wait(call_xino_fread, &args); ++ if (unlikely(wkq_err)) ++ err = wkq_err; ++ ++ return err; ++} ++ ++static ssize_t xino_fwrite_wkq(struct file *file, void *buf, size_t size, ++ loff_t *pos); ++ ++static ssize_t do_xino_fwrite(struct file *file, void *kbuf, size_t size, ++ loff_t *pos) ++{ ++ ssize_t err; ++ int i; ++ const int prevent_endless = 10; ++ ++ i = 0; ++ do { ++ err = vfsub_write_k(file, kbuf, size, pos); ++ if (err == -EINTR ++ && !au_wkq_test() ++ && fatal_signal_pending(current)) { ++ err = xino_fwrite_wkq(file, kbuf, size, pos); ++ BUG_ON(err == -EINTR); ++ } ++ } while (i++ < prevent_endless ++ && (err == -EAGAIN || err == -EINTR)); ++ ++#if 0 /* reserved for future use */ ++ if (err > 0) ++ fsnotify_modify(file->f_path.dentry); ++#endif ++ ++ return err; ++} ++ ++struct do_xino_fwrite_args { ++ ssize_t *errp; ++ struct file *file; ++ void *buf; ++ size_t size; ++ loff_t *pos; ++}; ++ ++static void call_do_xino_fwrite(void *args) ++{ ++ struct do_xino_fwrite_args *a = args; ++ *a->errp = do_xino_fwrite(a->file, a->buf, a->size, a->pos); ++} ++ ++static ssize_t xino_fwrite_wkq(struct file *file, void *buf, size_t size, ++ loff_t *pos) ++{ ++ ssize_t err; ++ int wkq_err; ++ struct do_xino_fwrite_args args = { ++ .errp = &err, ++ .file = file, ++ .buf = buf, ++ .size = size, ++ .pos = pos ++ }; ++ ++ /* ++ * it breaks RLIMIT_FSIZE and normal user's limit, ++ * users should care about quota and real 'filesystem full.' ++ */ ++ wkq_err = au_wkq_wait(call_do_xino_fwrite, &args); ++ if (unlikely(wkq_err)) ++ err = wkq_err; ++ ++ return err; ++} ++ ++ssize_t xino_fwrite(struct file *file, void *buf, size_t size, loff_t *pos) ++{ ++ ssize_t err; ++ ++ if (rlimit(RLIMIT_FSIZE) == RLIM_INFINITY) { ++ lockdep_off(); ++ err = do_xino_fwrite(file, buf, size, pos); ++ lockdep_on(); ++ } else { ++ lockdep_off(); ++ err = xino_fwrite_wkq(file, buf, size, pos); ++ lockdep_on(); ++ } ++ ++ return err; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++/* ++ * inode number bitmap ++ */ ++static const int page_bits = (int)PAGE_SIZE * BITS_PER_BYTE; ++static ino_t xib_calc_ino(unsigned long pindex, int bit) ++{ ++ ino_t ino; ++ ++ AuDebugOn(bit < 0 || page_bits <= bit); ++ ino = AUFS_FIRST_INO + pindex * page_bits + bit; ++ return ino; ++} ++ ++static void xib_calc_bit(ino_t ino, unsigned long *pindex, int *bit) ++{ ++ AuDebugOn(ino < AUFS_FIRST_INO); ++ ino -= AUFS_FIRST_INO; ++ *pindex = ino / page_bits; ++ *bit = ino % page_bits; ++} ++ ++static int xib_pindex(struct super_block *sb, unsigned long pindex) ++{ ++ int err; ++ loff_t pos; ++ ssize_t sz; ++ struct au_sbinfo *sbinfo; ++ struct file *xib; ++ unsigned long *p; ++ ++ sbinfo = au_sbi(sb); ++ MtxMustLock(&sbinfo->si_xib_mtx); ++ AuDebugOn(pindex > ULONG_MAX / PAGE_SIZE ++ || !au_opt_test(sbinfo->si_mntflags, XINO)); ++ ++ if (pindex == sbinfo->si_xib_last_pindex) ++ return 0; ++ ++ xib = sbinfo->si_xib; ++ p = sbinfo->si_xib_buf; ++ pos = sbinfo->si_xib_last_pindex; ++ pos *= PAGE_SIZE; ++ sz = xino_fwrite(xib, p, PAGE_SIZE, &pos); ++ if (unlikely(sz != PAGE_SIZE)) ++ goto out; ++ ++ pos = pindex; ++ pos *= PAGE_SIZE; ++ if (vfsub_f_size_read(xib) >= pos + PAGE_SIZE) ++ sz = xino_fread(xib, p, PAGE_SIZE, &pos); ++ else { ++ memset(p, 0, PAGE_SIZE); ++ sz = xino_fwrite(xib, p, PAGE_SIZE, &pos); ++ } ++ if (sz == PAGE_SIZE) { ++ sbinfo->si_xib_last_pindex = pindex; ++ return 0; /* success */ ++ } ++ ++out: ++ AuIOErr1("write failed (%zd)\n", sz); ++ err = sz; ++ if (sz >= 0) ++ err = -EIO; ++ return err; ++} ++ ++static void au_xib_clear_bit(struct inode *inode) ++{ ++ int err, bit; ++ unsigned long pindex; ++ struct super_block *sb; ++ struct au_sbinfo *sbinfo; ++ ++ AuDebugOn(inode->i_nlink); ++ ++ sb = inode->i_sb; ++ xib_calc_bit(inode->i_ino, &pindex, &bit); ++ AuDebugOn(page_bits <= bit); ++ sbinfo = au_sbi(sb); ++ mutex_lock(&sbinfo->si_xib_mtx); ++ err = xib_pindex(sb, pindex); ++ if (!err) { ++ clear_bit(bit, sbinfo->si_xib_buf); ++ sbinfo->si_xib_next_bit = bit; ++ } ++ mutex_unlock(&sbinfo->si_xib_mtx); ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++/* ++ * truncate a xino bitmap file ++ */ ++ ++/* todo: slow */ ++static int do_xib_restore(struct super_block *sb, struct file *file, void *page) ++{ ++ int err, bit; ++ ssize_t sz; ++ unsigned long pindex; ++ loff_t pos, pend; ++ struct au_sbinfo *sbinfo; ++ ino_t *ino; ++ unsigned long *p; ++ ++ err = 0; ++ sbinfo = au_sbi(sb); ++ MtxMustLock(&sbinfo->si_xib_mtx); ++ p = sbinfo->si_xib_buf; ++ pend = vfsub_f_size_read(file); ++ pos = 0; ++ while (pos < pend) { ++ sz = xino_fread(file, page, PAGE_SIZE, &pos); ++ err = sz; ++ if (unlikely(sz <= 0)) ++ goto out; ++ ++ err = 0; ++ for (ino = page; sz > 0; ino++, sz -= sizeof(ino)) { ++ if (unlikely(*ino < AUFS_FIRST_INO)) ++ continue; ++ ++ xib_calc_bit(*ino, &pindex, &bit); ++ AuDebugOn(page_bits <= bit); ++ err = xib_pindex(sb, pindex); ++ if (!err) ++ set_bit(bit, p); ++ else ++ goto out; ++ } ++ } ++ ++out: ++ return err; ++} ++ ++static int xib_restore(struct super_block *sb) ++{ ++ int err, i; ++ unsigned int nfile; ++ aufs_bindex_t bindex, bbot; ++ void *page; ++ struct au_branch *br; ++ struct au_xino *xi; ++ struct file *file; ++ ++ err = -ENOMEM; ++ page = (void *)__get_free_page(GFP_NOFS); ++ if (unlikely(!page)) ++ goto out; ++ ++ err = 0; ++ bbot = au_sbbot(sb); ++ for (bindex = 0; !err && bindex <= bbot; bindex++) ++ if (!bindex || is_sb_shared(sb, bindex, bindex - 1) < 0) { ++ br = au_sbr(sb, bindex); ++ xi = br->br_xino; ++ nfile = xi->xi_nfile; ++ for (i = 0; i < nfile; i++) { ++ file = au_xino_file(xi, i); ++ if (file) ++ err = do_xib_restore(sb, file, page); ++ } ++ } else ++ AuDbg("skip shared b%d\n", bindex); ++ free_page((unsigned long)page); ++ ++out: ++ return err; ++} ++ ++int au_xib_trunc(struct super_block *sb) ++{ ++ int err; ++ ssize_t sz; ++ loff_t pos; ++ struct au_sbinfo *sbinfo; ++ unsigned long *p; ++ struct file *file; ++ ++ SiMustWriteLock(sb); ++ ++ err = 0; ++ sbinfo = au_sbi(sb); ++ if (!au_opt_test(sbinfo->si_mntflags, XINO)) ++ goto out; ++ ++ file = sbinfo->si_xib; ++ if (vfsub_f_size_read(file) <= PAGE_SIZE) ++ goto out; ++ ++ file = au_xino_create2(sb, &sbinfo->si_xib->f_path, NULL); ++ err = PTR_ERR(file); ++ if (IS_ERR(file)) ++ goto out; ++ fput(sbinfo->si_xib); ++ sbinfo->si_xib = file; ++ ++ p = sbinfo->si_xib_buf; ++ memset(p, 0, PAGE_SIZE); ++ pos = 0; ++ sz = xino_fwrite(sbinfo->si_xib, p, PAGE_SIZE, &pos); ++ if (unlikely(sz != PAGE_SIZE)) { ++ err = sz; ++ AuIOErr("err %d\n", err); ++ if (sz >= 0) ++ err = -EIO; ++ goto out; ++ } ++ ++ mutex_lock(&sbinfo->si_xib_mtx); ++ /* mnt_want_write() is unnecessary here */ ++ err = xib_restore(sb); ++ mutex_unlock(&sbinfo->si_xib_mtx); ++ ++out: ++ return err; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++struct au_xino *au_xino_alloc(unsigned int nfile) ++{ ++ struct au_xino *xi; ++ ++ xi = kzalloc(sizeof(*xi), GFP_NOFS); ++ if (unlikely(!xi)) ++ goto out; ++ xi->xi_nfile = nfile; ++ xi->xi_file = kcalloc(nfile, sizeof(*xi->xi_file), GFP_NOFS); ++ if (unlikely(!xi->xi_file)) ++ goto out_free; ++ ++ xi->xi_nondir.total = 8; /* initial size */ ++ xi->xi_nondir.array = kcalloc(xi->xi_nondir.total, sizeof(ino_t), ++ GFP_NOFS); ++ if (unlikely(!xi->xi_nondir.array)) ++ goto out_file; ++ ++ spin_lock_init(&xi->xi_nondir.spin); ++ init_waitqueue_head(&xi->xi_nondir.wqh); ++ mutex_init(&xi->xi_mtx); ++ INIT_HLIST_BL_HEAD(&xi->xi_writing); ++ atomic_set(&xi->xi_truncating, 0); ++ kref_init(&xi->xi_kref); ++ goto out; /* success */ ++ ++out_file: ++ au_kfree_try_rcu(xi->xi_file); ++out_free: ++ au_kfree_rcu(xi); ++ xi = NULL; ++out: ++ return xi; ++} ++ ++static int au_xino_init(struct au_branch *br, int idx, struct file *file) ++{ ++ int err; ++ struct au_xino *xi; ++ ++ err = 0; ++ xi = au_xino_alloc(idx + 1); ++ if (unlikely(!xi)) { ++ err = -ENOMEM; ++ goto out; ++ } ++ ++ if (file) ++ get_file(file); ++ xi->xi_file[idx] = file; ++ AuDebugOn(br->br_xino); ++ br->br_xino = xi; ++ ++out: ++ return err; ++} ++ ++static void au_xino_release(struct kref *kref) ++{ ++ struct au_xino *xi; ++ int i; ++ unsigned long ul; ++ struct hlist_bl_head *hbl; ++ struct hlist_bl_node *pos, *n; ++ struct au_xi_writing *p; ++ ++ xi = container_of(kref, struct au_xino, xi_kref); ++ for (i = 0; i < xi->xi_nfile; i++) ++ if (xi->xi_file[i]) ++ fput(xi->xi_file[i]); ++ for (i = xi->xi_nondir.total - 1; i >= 0; i--) ++ AuDebugOn(xi->xi_nondir.array[i]); ++ mutex_destroy(&xi->xi_mtx); ++ hbl = &xi->xi_writing; ++ ul = au_hbl_count(hbl); ++ if (unlikely(ul)) { ++ pr_warn("xi_writing %lu\n", ul); ++ hlist_bl_lock(hbl); ++ hlist_bl_for_each_entry_safe(p, pos, n, hbl, node) { ++ hlist_bl_del(&p->node); ++ /* kmemleak reported au_kfree_rcu() doesn't free it */ ++ kfree(p); ++ } ++ hlist_bl_unlock(hbl); ++ } ++ au_kfree_try_rcu(xi->xi_file); ++ au_kfree_try_rcu(xi->xi_nondir.array); ++ au_kfree_rcu(xi); ++} ++ ++int au_xino_put(struct au_branch *br) ++{ ++ int ret; ++ struct au_xino *xi; ++ ++ ret = 0; ++ xi = br->br_xino; ++ if (xi) { ++ br->br_xino = NULL; ++ ret = kref_put(&xi->xi_kref, au_xino_release); ++ } ++ ++ return ret; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++/* ++ * xino mount option handlers ++ */ ++ ++/* xino bitmap */ ++static void xino_clear_xib(struct super_block *sb) ++{ ++ struct au_sbinfo *sbinfo; ++ ++ SiMustWriteLock(sb); ++ ++ sbinfo = au_sbi(sb); ++ if (sbinfo->si_xib) ++ fput(sbinfo->si_xib); ++ sbinfo->si_xib = NULL; ++ if (sbinfo->si_xib_buf) ++ free_page((unsigned long)sbinfo->si_xib_buf); ++ sbinfo->si_xib_buf = NULL; ++} ++ ++static int au_xino_set_xib(struct super_block *sb, struct path *path) ++{ ++ int err; ++ loff_t pos; ++ struct au_sbinfo *sbinfo; ++ struct file *file; ++ struct super_block *xi_sb; ++ ++ SiMustWriteLock(sb); ++ ++ sbinfo = au_sbi(sb); ++ file = au_xino_create2(sb, path, sbinfo->si_xib); ++ err = PTR_ERR(file); ++ if (IS_ERR(file)) ++ goto out; ++ if (sbinfo->si_xib) ++ fput(sbinfo->si_xib); ++ sbinfo->si_xib = file; ++ xi_sb = file_inode(file)->i_sb; ++ sbinfo->si_ximaxent = xi_sb->s_maxbytes; ++ if (unlikely(sbinfo->si_ximaxent < PAGE_SIZE)) { ++ err = -EIO; ++ pr_err("s_maxbytes(%llu) on %s is too small\n", ++ (u64)sbinfo->si_ximaxent, au_sbtype(xi_sb)); ++ goto out_unset; ++ } ++ sbinfo->si_ximaxent /= sizeof(ino_t); ++ ++ err = -ENOMEM; ++ if (!sbinfo->si_xib_buf) ++ sbinfo->si_xib_buf = (void *)get_zeroed_page(GFP_NOFS); ++ if (unlikely(!sbinfo->si_xib_buf)) ++ goto out_unset; ++ ++ sbinfo->si_xib_last_pindex = 0; ++ sbinfo->si_xib_next_bit = 0; ++ if (vfsub_f_size_read(file) < PAGE_SIZE) { ++ pos = 0; ++ err = xino_fwrite(file, sbinfo->si_xib_buf, PAGE_SIZE, &pos); ++ if (unlikely(err != PAGE_SIZE)) ++ goto out_free; ++ } ++ err = 0; ++ goto out; /* success */ ++ ++out_free: ++ if (sbinfo->si_xib_buf) ++ free_page((unsigned long)sbinfo->si_xib_buf); ++ sbinfo->si_xib_buf = NULL; ++ if (err >= 0) ++ err = -EIO; ++out_unset: ++ fput(sbinfo->si_xib); ++ sbinfo->si_xib = NULL; ++out: ++ AuTraceErr(err); ++ return err; ++} ++ ++/* xino for each branch */ ++static void xino_clear_br(struct super_block *sb) ++{ ++ aufs_bindex_t bindex, bbot; ++ struct au_branch *br; ++ ++ bbot = au_sbbot(sb); ++ for (bindex = 0; bindex <= bbot; bindex++) { ++ br = au_sbr(sb, bindex); ++ AuDebugOn(!br); ++ au_xino_put(br); ++ } ++} ++ ++static void au_xino_set_br_shared(struct super_block *sb, struct au_branch *br, ++ aufs_bindex_t bshared) ++{ ++ struct au_branch *brshared; ++ ++ brshared = au_sbr(sb, bshared); ++ AuDebugOn(!brshared->br_xino); ++ AuDebugOn(!brshared->br_xino->xi_file); ++ if (br->br_xino != brshared->br_xino) { ++ au_xino_get(brshared); ++ au_xino_put(br); ++ br->br_xino = brshared->br_xino; ++ } ++} ++ ++struct au_xino_do_set_br { ++ struct au_branch *br; ++ ino_t h_ino; ++ aufs_bindex_t bshared; ++}; ++ ++static int au_xino_do_set_br(struct super_block *sb, struct path *path, ++ struct au_xino_do_set_br *args) ++{ ++ int err; ++ struct au_xi_calc calc; ++ struct file *file; ++ struct au_branch *br; ++ struct au_xi_new xinew = { ++ .base = path ++ }; ++ ++ br = args->br; ++ xinew.xi = br->br_xino; ++ au_xi_calc(sb, args->h_ino, &calc); ++ xinew.copy_src = au_xino_file(xinew.xi, calc.idx); ++ if (args->bshared >= 0) ++ /* shared xino */ ++ au_xino_set_br_shared(sb, br, args->bshared); ++ else if (!xinew.xi) { ++ /* new xino */ ++ err = au_xino_init(br, calc.idx, xinew.copy_src); ++ if (unlikely(err)) ++ goto out; ++ } ++ ++ /* force re-creating */ ++ xinew.xi = br->br_xino; ++ xinew.idx = calc.idx; ++ mutex_lock(&xinew.xi->xi_mtx); ++ file = au_xi_new(sb, &xinew); ++ mutex_unlock(&xinew.xi->xi_mtx); ++ err = PTR_ERR(file); ++ if (IS_ERR(file)) ++ goto out; ++ AuDebugOn(!file); ++ ++ err = au_xino_do_write(file, &calc, AUFS_ROOT_INO); ++ if (unlikely(err)) ++ au_xino_put(br); ++ ++out: ++ AuTraceErr(err); ++ return err; ++} ++ ++static int au_xino_set_br(struct super_block *sb, struct path *path) ++{ ++ int err; ++ aufs_bindex_t bindex, bbot; ++ struct au_xino_do_set_br args; ++ struct inode *inode; ++ ++ SiMustWriteLock(sb); ++ ++ bbot = au_sbbot(sb); ++ inode = d_inode(sb->s_root); ++ for (bindex = 0; bindex <= bbot; bindex++) { ++ args.h_ino = au_h_iptr(inode, bindex)->i_ino; ++ args.br = au_sbr(sb, bindex); ++ args.bshared = is_sb_shared(sb, bindex, bindex - 1); ++ err = au_xino_do_set_br(sb, path, &args); ++ if (unlikely(err)) ++ break; ++ } ++ ++ AuTraceErr(err); ++ return err; ++} ++ ++void au_xino_clr(struct super_block *sb) ++{ ++ struct au_sbinfo *sbinfo; ++ ++ au_xigen_clr(sb); ++ xino_clear_xib(sb); ++ xino_clear_br(sb); ++ dbgaufs_brs_del(sb, 0); ++ sbinfo = au_sbi(sb); ++ /* lvalue, do not call au_mntflags() */ ++ au_opt_clr(sbinfo->si_mntflags, XINO); ++} ++ ++int au_xino_set(struct super_block *sb, struct au_opt_xino *xiopt, int remount) ++{ ++ int err, skip; ++ struct dentry *dentry, *parent, *cur_dentry, *cur_parent; ++ struct qstr *dname, *cur_name; ++ struct file *cur_xino; ++ struct au_sbinfo *sbinfo; ++ struct path *path, *cur_path; ++ ++ SiMustWriteLock(sb); ++ ++ err = 0; ++ sbinfo = au_sbi(sb); ++ path = &xiopt->file->f_path; ++ dentry = path->dentry; ++ parent = dget_parent(dentry); ++ if (remount) { ++ skip = 0; ++ cur_xino = sbinfo->si_xib; ++ if (cur_xino) { ++ cur_path = &cur_xino->f_path; ++ cur_dentry = cur_path->dentry; ++ cur_parent = dget_parent(cur_dentry); ++ cur_name = &cur_dentry->d_name; ++ dname = &dentry->d_name; ++ skip = (cur_parent == parent ++ && au_qstreq(dname, cur_name)); ++ dput(cur_parent); ++ } ++ if (skip) ++ goto out; ++ } ++ ++ au_opt_set(sbinfo->si_mntflags, XINO); ++ err = au_xino_set_xib(sb, path); ++ /* si_x{read,write} are set */ ++ if (!err) ++ err = au_xigen_set(sb, path); ++ if (!err) ++ err = au_xino_set_br(sb, path); ++ if (!err) { ++ dbgaufs_brs_add(sb, 0, /*topdown*/1); ++ goto out; /* success */ ++ } ++ ++ /* reset all */ ++ AuIOErr("failed setting xino(%d).\n", err); ++ au_xino_clr(sb); ++ ++out: ++ dput(parent); ++ return err; ++} ++ ++/* ++ * create a xinofile at the default place/path. ++ */ ++struct file *au_xino_def(struct super_block *sb) ++{ ++ struct file *file; ++ char *page, *p; ++ struct au_branch *br; ++ struct super_block *h_sb; ++ struct path path; ++ aufs_bindex_t bbot, bindex, bwr; ++ ++ br = NULL; ++ bbot = au_sbbot(sb); ++ bwr = -1; ++ for (bindex = 0; bindex <= bbot; bindex++) { ++ br = au_sbr(sb, bindex); ++ if (au_br_writable(br->br_perm) ++ && !au_test_fs_bad_xino(au_br_sb(br))) { ++ bwr = bindex; ++ break; ++ } ++ } ++ ++ if (bwr >= 0) { ++ file = ERR_PTR(-ENOMEM); ++ page = (void *)__get_free_page(GFP_NOFS); ++ if (unlikely(!page)) ++ goto out; ++ path.mnt = au_br_mnt(br); ++ path.dentry = au_h_dptr(sb->s_root, bwr); ++ p = d_path(&path, page, PATH_MAX - sizeof(AUFS_XINO_FNAME)); ++ file = (void *)p; ++ if (!IS_ERR(p)) { ++ strcat(p, "/" AUFS_XINO_FNAME); ++ AuDbg("%s\n", p); ++ file = au_xino_create(sb, p, /*silent*/0, /*wbrtop*/1); ++ } ++ free_page((unsigned long)page); ++ } else { ++ file = au_xino_create(sb, AUFS_XINO_DEFPATH, /*silent*/0, ++ /*wbrtop*/0); ++ if (IS_ERR(file)) ++ goto out; ++ h_sb = file->f_path.dentry->d_sb; ++ if (unlikely(au_test_fs_bad_xino(h_sb))) { ++ pr_err("xino doesn't support %s(%s)\n", ++ AUFS_XINO_DEFPATH, au_sbtype(h_sb)); ++ fput(file); ++ file = ERR_PTR(-EINVAL); ++ } ++ } ++ ++out: ++ return file; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++/* ++ * initialize the xinofile for the specified branch @br ++ * at the place/path where @base_file indicates. ++ * test whether another branch is on the same filesystem or not, ++ * if found then share the xinofile with another branch. ++ */ ++int au_xino_init_br(struct super_block *sb, struct au_branch *br, ino_t h_ino, ++ struct path *base) ++{ ++ int err; ++ struct au_xino_do_set_br args = { ++ .h_ino = h_ino, ++ .br = br ++ }; ++ ++ args.bshared = sbr_find_shared(sb, /*btop*/0, au_sbbot(sb), ++ au_br_sb(br)); ++ err = au_xino_do_set_br(sb, base, &args); ++ if (unlikely(err)) ++ au_xino_put(br); ++ ++ return err; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++/* ++ * get an unused inode number from bitmap ++ */ ++ino_t au_xino_new_ino(struct super_block *sb) ++{ ++ ino_t ino; ++ unsigned long *p, pindex, ul, pend; ++ struct au_sbinfo *sbinfo; ++ struct file *file; ++ int free_bit, err; ++ ++ if (!au_opt_test(au_mntflags(sb), XINO)) ++ return iunique(sb, AUFS_FIRST_INO); ++ ++ sbinfo = au_sbi(sb); ++ mutex_lock(&sbinfo->si_xib_mtx); ++ p = sbinfo->si_xib_buf; ++ free_bit = sbinfo->si_xib_next_bit; ++ if (free_bit < page_bits && !test_bit(free_bit, p)) ++ goto out; /* success */ ++ free_bit = find_first_zero_bit(p, page_bits); ++ if (free_bit < page_bits) ++ goto out; /* success */ ++ ++ pindex = sbinfo->si_xib_last_pindex; ++ for (ul = pindex - 1; ul < ULONG_MAX; ul--) { ++ err = xib_pindex(sb, ul); ++ if (unlikely(err)) ++ goto out_err; ++ free_bit = find_first_zero_bit(p, page_bits); ++ if (free_bit < page_bits) ++ goto out; /* success */ ++ } ++ ++ file = sbinfo->si_xib; ++ pend = vfsub_f_size_read(file) / PAGE_SIZE; ++ for (ul = pindex + 1; ul <= pend; ul++) { ++ err = xib_pindex(sb, ul); ++ if (unlikely(err)) ++ goto out_err; ++ free_bit = find_first_zero_bit(p, page_bits); ++ if (free_bit < page_bits) ++ goto out; /* success */ ++ } ++ BUG(); ++ ++out: ++ set_bit(free_bit, p); ++ sbinfo->si_xib_next_bit = free_bit + 1; ++ pindex = sbinfo->si_xib_last_pindex; ++ mutex_unlock(&sbinfo->si_xib_mtx); ++ ino = xib_calc_ino(pindex, free_bit); ++ AuDbg("i%lu\n", (unsigned long)ino); ++ return ino; ++out_err: ++ mutex_unlock(&sbinfo->si_xib_mtx); ++ AuDbg("i0\n"); ++ return 0; ++} ++ ++/* for s_op->delete_inode() */ ++void au_xino_delete_inode(struct inode *inode, const int unlinked) ++{ ++ int err; ++ unsigned int mnt_flags; ++ aufs_bindex_t bindex, bbot, bi; ++ unsigned char try_trunc; ++ struct au_iinfo *iinfo; ++ struct super_block *sb; ++ struct au_hinode *hi; ++ struct inode *h_inode; ++ struct au_branch *br; ++ struct au_xi_calc calc; ++ struct file *file; ++ ++ AuDebugOn(au_is_bad_inode(inode)); ++ ++ sb = inode->i_sb; ++ mnt_flags = au_mntflags(sb); ++ if (!au_opt_test(mnt_flags, XINO) ++ || inode->i_ino == AUFS_ROOT_INO) ++ return; ++ ++ if (unlinked) { ++ au_xigen_inc(inode); ++ au_xib_clear_bit(inode); ++ } ++ ++ iinfo = au_ii(inode); ++ bindex = iinfo->ii_btop; ++ if (bindex < 0) ++ return; ++ ++ try_trunc = !!au_opt_test(mnt_flags, TRUNC_XINO); ++ hi = au_hinode(iinfo, bindex); ++ bbot = iinfo->ii_bbot; ++ for (; bindex <= bbot; bindex++, hi++) { ++ h_inode = hi->hi_inode; ++ if (!h_inode ++ || (!unlinked && h_inode->i_nlink)) ++ continue; ++ ++ /* inode may not be revalidated */ ++ bi = au_br_index(sb, hi->hi_id); ++ if (bi < 0) ++ continue; ++ ++ br = au_sbr(sb, bi); ++ au_xi_calc(sb, h_inode->i_ino, &calc); ++ file = au_xino_file(br->br_xino, calc.idx); ++ if (IS_ERR_OR_NULL(file)) ++ continue; ++ ++ err = au_xino_do_write(file, &calc, /*ino*/0); ++ if (!err && try_trunc ++ && au_test_fs_trunc_xino(au_br_sb(br))) ++ xino_try_trunc(sb, br); ++ } ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++static int au_xinondir_find(struct au_xino *xi, ino_t h_ino) ++{ ++ int found, total, i; ++ ++ found = -1; ++ total = xi->xi_nondir.total; ++ for (i = 0; i < total; i++) { ++ if (xi->xi_nondir.array[i] != h_ino) ++ continue; ++ found = i; ++ break; ++ } ++ ++ return found; ++} ++ ++static int au_xinondir_expand(struct au_xino *xi) ++{ ++ int err, sz; ++ ino_t *p; ++ ++ BUILD_BUG_ON(KMALLOC_MAX_SIZE > INT_MAX); ++ ++ err = -ENOMEM; ++ sz = xi->xi_nondir.total * sizeof(ino_t); ++ if (unlikely(sz > KMALLOC_MAX_SIZE / 2)) ++ goto out; ++ p = au_kzrealloc(xi->xi_nondir.array, sz, sz << 1, GFP_ATOMIC, ++ /*may_shrink*/0); ++ if (p) { ++ xi->xi_nondir.array = p; ++ xi->xi_nondir.total <<= 1; ++ AuDbg("xi_nondir.total %d\n", xi->xi_nondir.total); ++ err = 0; ++ } ++ ++out: ++ return err; ++} ++ ++void au_xinondir_leave(struct super_block *sb, aufs_bindex_t bindex, ++ ino_t h_ino, int idx) ++{ ++ struct au_xino *xi; ++ ++ AuDebugOn(!au_opt_test(au_mntflags(sb), XINO)); ++ xi = au_sbr(sb, bindex)->br_xino; ++ AuDebugOn(idx < 0 || xi->xi_nondir.total <= idx); ++ ++ spin_lock(&xi->xi_nondir.spin); ++ AuDebugOn(xi->xi_nondir.array[idx] != h_ino); ++ xi->xi_nondir.array[idx] = 0; ++ spin_unlock(&xi->xi_nondir.spin); ++ wake_up_all(&xi->xi_nondir.wqh); ++} ++ ++int au_xinondir_enter(struct super_block *sb, aufs_bindex_t bindex, ino_t h_ino, ++ int *idx) ++{ ++ int err, found, empty; ++ struct au_xino *xi; ++ ++ err = 0; ++ *idx = -1; ++ if (!au_opt_test(au_mntflags(sb), XINO)) ++ goto out; /* no xino */ ++ ++ xi = au_sbr(sb, bindex)->br_xino; ++ ++again: ++ spin_lock(&xi->xi_nondir.spin); ++ found = au_xinondir_find(xi, h_ino); ++ if (found == -1) { ++ empty = au_xinondir_find(xi, /*h_ino*/0); ++ if (empty == -1) { ++ empty = xi->xi_nondir.total; ++ err = au_xinondir_expand(xi); ++ if (unlikely(err)) ++ goto out_unlock; ++ } ++ xi->xi_nondir.array[empty] = h_ino; ++ *idx = empty; ++ } else { ++ spin_unlock(&xi->xi_nondir.spin); ++ wait_event(xi->xi_nondir.wqh, ++ xi->xi_nondir.array[found] != h_ino); ++ goto again; ++ } ++ ++out_unlock: ++ spin_unlock(&xi->xi_nondir.spin); ++out: ++ return err; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++int au_xino_path(struct seq_file *seq, struct file *file) ++{ ++ int err; ++ ++ err = au_seq_path(seq, &file->f_path); ++ if (unlikely(err)) ++ goto out; ++ ++#define Deleted "\\040(deleted)" ++ seq->count -= sizeof(Deleted) - 1; ++ AuDebugOn(memcmp(seq->buf + seq->count, Deleted, ++ sizeof(Deleted) - 1)); ++#undef Deleted ++ ++out: ++ return err; ++} +diff -Naur linux-5.15/fs/dcache.c aufs5-linux-aufs5.15/fs/dcache.c +--- linux-5.15/fs/dcache.c 2021-10-31 23:53:10.000000000 +0300 ++++ aufs5-linux-aufs5.15/fs/dcache.c 2022-03-07 13:48:09.000000000 +0300 +@@ -1320,7 +1320,7 @@ + * + * The @enter() callbacks are called with d_lock held. + */ +-static void d_walk(struct dentry *parent, void *data, ++void d_walk(struct dentry *parent, void *data, + enum d_walk_ret (*enter)(void *, struct dentry *)) + { + struct dentry *this_parent; +diff -Naur linux-5.15/fs/fcntl.c aufs5-linux-aufs5.15/fs/fcntl.c +--- linux-5.15/fs/fcntl.c 2021-10-31 23:53:10.000000000 +0300 ++++ aufs5-linux-aufs5.15/fs/fcntl.c 2022-03-07 13:48:09.000000000 +0300 +@@ -33,7 +33,7 @@ + + #define SETFL_MASK (O_APPEND | O_NONBLOCK | O_NDELAY | O_DIRECT | O_NOATIME) + +-static int setfl(int fd, struct file * filp, unsigned long arg) ++int setfl(int fd, struct file *filp, unsigned long arg) + { + struct inode * inode = file_inode(filp); + int error = 0; +@@ -64,6 +64,8 @@ + + if (filp->f_op->check_flags) + error = filp->f_op->check_flags(arg); ++ if (!error && filp->f_op->setfl) ++ error = filp->f_op->setfl(filp, arg); + if (error) + return error; + +diff -Naur linux-5.15/fs/Kconfig aufs5-linux-aufs5.15/fs/Kconfig +--- linux-5.15/fs/Kconfig 2021-10-31 23:53:10.000000000 +0300 ++++ aufs5-linux-aufs5.15/fs/Kconfig 2022-03-07 13:48:09.000000000 +0300 +@@ -312,6 +312,7 @@ + source "fs/ufs/Kconfig" + source "fs/erofs/Kconfig" + source "fs/vboxsf/Kconfig" ++source "fs/aufs/Kconfig" + + endif # MISC_FILESYSTEMS + +diff -Naur linux-5.15/fs/Makefile aufs5-linux-aufs5.15/fs/Makefile +--- linux-5.15/fs/Makefile 2021-10-31 23:53:10.000000000 +0300 ++++ aufs5-linux-aufs5.15/fs/Makefile 2022-03-07 13:48:09.000000000 +0300 +@@ -138,3 +138,4 @@ + obj-$(CONFIG_EROFS_FS) += erofs/ + obj-$(CONFIG_VBOXSF_FS) += vboxsf/ + obj-$(CONFIG_ZONEFS_FS) += zonefs/ ++obj-$(CONFIG_AUFS_FS) += aufs/ +diff -Naur linux-5.15/fs/namespace.c aufs5-linux-aufs5.15/fs/namespace.c +--- linux-5.15/fs/namespace.c 2021-10-31 23:53:10.000000000 +0300 ++++ aufs5-linux-aufs5.15/fs/namespace.c 2022-03-07 13:48:09.000000000 +0300 +@@ -808,6 +808,12 @@ + return mnt->mnt_ns == current->nsproxy->mnt_ns; + } + ++/* for aufs, CONFIG_AUFS_BR_FUSE */ ++int is_current_mnt_ns(struct vfsmount *mnt) ++{ ++ return check_mnt(real_mount(mnt)); ++} ++ + /* + * vfsmount lock must be held for write + */ +diff -Naur linux-5.15/fs/proc/base.c aufs5-linux-aufs5.15/fs/proc/base.c +--- linux-5.15/fs/proc/base.c 2021-10-31 23:53:10.000000000 +0300 ++++ aufs5-linux-aufs5.15/fs/proc/base.c 2022-03-07 13:48:09.000000000 +0300 +@@ -2186,7 +2186,7 @@ + rc = -ENOENT; + vma = find_exact_vma(mm, vm_start, vm_end); + if (vma && vma->vm_file) { +- *path = vma->vm_file->f_path; ++ *path = vma_pr_or_file(vma)->f_path; + path_get(path); + rc = 0; + } +diff -Naur linux-5.15/fs/proc/nommu.c aufs5-linux-aufs5.15/fs/proc/nommu.c +--- linux-5.15/fs/proc/nommu.c 2021-10-31 23:53:10.000000000 +0300 ++++ aufs5-linux-aufs5.15/fs/proc/nommu.c 2022-03-07 13:48:09.000000000 +0300 +@@ -40,7 +40,10 @@ + file = region->vm_file; + + if (file) { +- struct inode *inode = file_inode(region->vm_file); ++ struct inode *inode; ++ ++ file = vmr_pr_or_file(region); ++ inode = file_inode(file); + dev = inode->i_sb->s_dev; + ino = inode->i_ino; + } +diff -Naur linux-5.15/fs/proc/task_mmu.c aufs5-linux-aufs5.15/fs/proc/task_mmu.c +--- linux-5.15/fs/proc/task_mmu.c 2021-10-31 23:53:10.000000000 +0300 ++++ aufs5-linux-aufs5.15/fs/proc/task_mmu.c 2022-03-07 13:48:09.000000000 +0300 +@@ -280,7 +280,10 @@ + const char *name = NULL; + + if (file) { +- struct inode *inode = file_inode(vma->vm_file); ++ struct inode *inode; ++ ++ file = vma_pr_or_file(vma); ++ inode = file_inode(file); + dev = inode->i_sb->s_dev; + ino = inode->i_ino; + pgoff = ((loff_t)vma->vm_pgoff) << PAGE_SHIFT; +@@ -1865,7 +1868,7 @@ + struct proc_maps_private *proc_priv = &numa_priv->proc_maps; + struct vm_area_struct *vma = v; + struct numa_maps *md = &numa_priv->md; +- struct file *file = vma->vm_file; ++ struct file *file = vma_pr_or_file(vma); + struct mm_struct *mm = vma->vm_mm; + struct mempolicy *pol; + char buffer[64]; +diff -Naur linux-5.15/fs/proc/task_nommu.c aufs5-linux-aufs5.15/fs/proc/task_nommu.c +--- linux-5.15/fs/proc/task_nommu.c 2021-10-31 23:53:10.000000000 +0300 ++++ aufs5-linux-aufs5.15/fs/proc/task_nommu.c 2022-03-07 13:48:09.000000000 +0300 +@@ -155,7 +155,10 @@ + file = vma->vm_file; + + if (file) { +- struct inode *inode = file_inode(vma->vm_file); ++ struct inode *inode; ++ ++ file = vma_pr_or_file(vma); ++ inode = file_inode(file); + dev = inode->i_sb->s_dev; + ino = inode->i_ino; + pgoff = (loff_t)vma->vm_pgoff << PAGE_SHIFT; +diff -Naur linux-5.15/fs/splice.c aufs5-linux-aufs5.15/fs/splice.c +--- linux-5.15/fs/splice.c 2021-10-31 23:53:10.000000000 +0300 ++++ aufs5-linux-aufs5.15/fs/splice.c 2022-03-07 13:48:09.000000000 +0300 +@@ -759,8 +759,8 @@ + /* + * Attempt to initiate a splice from pipe to file. + */ +-static long do_splice_from(struct pipe_inode_info *pipe, struct file *out, +- loff_t *ppos, size_t len, unsigned int flags) ++long do_splice_from(struct pipe_inode_info *pipe, struct file *out, ++ loff_t *ppos, size_t len, unsigned int flags) + { + if (unlikely(!out->f_op->splice_write)) + return warn_unsupported(out, "write"); +@@ -770,9 +770,9 @@ + /* + * Attempt to initiate a splice from a file to a pipe. + */ +-static long do_splice_to(struct file *in, loff_t *ppos, +- struct pipe_inode_info *pipe, size_t len, +- unsigned int flags) ++long do_splice_to(struct file *in, loff_t *ppos, ++ struct pipe_inode_info *pipe, size_t len, ++ unsigned int flags) + { + unsigned int p_space; + int ret; +diff -Naur linux-5.15/fs/sync.c aufs5-linux-aufs5.15/fs/sync.c +--- linux-5.15/fs/sync.c 2021-10-31 23:53:10.000000000 +0300 ++++ aufs5-linux-aufs5.15/fs/sync.c 2022-03-07 13:48:09.000000000 +0300 +@@ -28,7 +28,7 @@ + * wait == 1 case since in that case write_inode() functions do + * sync_dirty_buffer() and thus effectively write one block at a time. + */ +-static int __sync_filesystem(struct super_block *sb, int wait) ++int __sync_filesystem(struct super_block *sb, int wait) + { + if (wait) + sync_inodes_sb(sb); +diff -Naur linux-5.15/include/linux/fs.h aufs5-linux-aufs5.15/include/linux/fs.h +--- linux-5.15/include/linux/fs.h 2021-10-31 23:53:10.000000000 +0300 ++++ aufs5-linux-aufs5.15/include/linux/fs.h 2022-03-07 13:48:09.000000000 +0300 +@@ -1381,6 +1381,7 @@ + /* can be called from interrupts */ + extern void kill_fasync(struct fasync_struct **, int, int); + ++extern int setfl(int fd, struct file *filp, unsigned long arg); + extern void __f_setown(struct file *filp, struct pid *, enum pid_type, int force); + extern int f_setown(struct file *filp, unsigned long arg, int force); + extern void f_delown(struct file *filp); +@@ -2092,6 +2093,7 @@ + ssize_t (*sendpage) (struct file *, struct page *, int, size_t, loff_t *, int); + unsigned long (*get_unmapped_area)(struct file *, unsigned long, unsigned long, unsigned long, unsigned long); + int (*check_flags)(int); ++ int (*setfl)(struct file *, unsigned long); + int (*flock) (struct file *, int, struct file_lock *); + ssize_t (*splice_write)(struct pipe_inode_info *, struct file *, loff_t *, size_t, unsigned int); + ssize_t (*splice_read)(struct file *, loff_t *, struct pipe_inode_info *, size_t, unsigned int); +@@ -2613,6 +2615,7 @@ + extern void ihold(struct inode * inode); + extern void iput(struct inode *); + extern int generic_update_time(struct inode *, struct timespec64 *, int); ++extern int update_time(struct inode *, struct timespec64 *, int); + + /* /sys/fs */ + extern struct kobject *fs_kobj; +@@ -2776,6 +2779,7 @@ + } + + void emergency_thaw_all(void); ++extern int __sync_filesystem(struct super_block *, int); + extern int sync_filesystem(struct super_block *); + extern const struct file_operations def_blk_fops; + extern const struct file_operations def_chr_fops; +diff -Naur linux-5.15/include/linux/lockdep.h aufs5-linux-aufs5.15/include/linux/lockdep.h +--- linux-5.15/include/linux/lockdep.h 2021-10-31 23:53:10.000000000 +0300 ++++ aufs5-linux-aufs5.15/include/linux/lockdep.h 2022-03-07 13:48:09.000000000 +0300 +@@ -248,6 +248,8 @@ + return lock->key == key; + } + ++struct lock_class *lockdep_hlock_class(struct held_lock *hlock); ++ + /* + * Acquire a lock. + * +diff -Naur linux-5.15/include/linux/mm.h aufs5-linux-aufs5.15/include/linux/mm.h +--- linux-5.15/include/linux/mm.h 2021-10-31 23:53:10.000000000 +0300 ++++ aufs5-linux-aufs5.15/include/linux/mm.h 2022-03-07 13:48:09.000000000 +0300 +@@ -1806,6 +1806,28 @@ + unmap_mapping_range(mapping, holebegin, holelen, 0); + } + ++extern void vma_do_file_update_time(struct vm_area_struct *, const char[], int); ++extern struct file *vma_do_pr_or_file(struct vm_area_struct *, const char[], ++ int); ++extern void vma_do_get_file(struct vm_area_struct *, const char[], int); ++extern void vma_do_fput(struct vm_area_struct *, const char[], int); ++ ++#define vma_file_update_time(vma) vma_do_file_update_time(vma, __func__, \ ++ __LINE__) ++#define vma_pr_or_file(vma) vma_do_pr_or_file(vma, __func__, \ ++ __LINE__) ++#define vma_get_file(vma) vma_do_get_file(vma, __func__, __LINE__) ++#define vma_fput(vma) vma_do_fput(vma, __func__, __LINE__) ++ ++#ifndef CONFIG_MMU ++extern struct file *vmr_do_pr_or_file(struct vm_region *, const char[], int); ++extern void vmr_do_fput(struct vm_region *, const char[], int); ++ ++#define vmr_pr_or_file(region) vmr_do_pr_or_file(region, __func__, \ ++ __LINE__) ++#define vmr_fput(region) vmr_do_fput(region, __func__, __LINE__) ++#endif /* !CONFIG_MMU */ ++ + extern int access_process_vm(struct task_struct *tsk, unsigned long addr, + void *buf, int len, unsigned int gup_flags); + extern int access_remote_vm(struct mm_struct *mm, unsigned long addr, +diff -Naur linux-5.15/include/linux/mm_types.h aufs5-linux-aufs5.15/include/linux/mm_types.h +--- linux-5.15/include/linux/mm_types.h 2021-10-31 23:53:10.000000000 +0300 ++++ aufs5-linux-aufs5.15/include/linux/mm_types.h 2022-03-07 13:48:09.000000000 +0300 +@@ -294,6 +294,7 @@ + unsigned long vm_top; /* region allocated to here */ + unsigned long vm_pgoff; /* the offset in vm_file corresponding to vm_start */ + struct file *vm_file; /* the backing file or NULL */ ++ struct file *vm_prfile; /* the virtual backing file or NULL */ + + int vm_usage; /* region usage count (access under nommu_region_sem) */ + bool vm_icache_flushed : 1; /* true if the icache has been flushed for +@@ -373,6 +374,7 @@ + unsigned long vm_pgoff; /* Offset (within vm_file) in PAGE_SIZE + units */ + struct file * vm_file; /* File we map to (can be NULL). */ ++ struct file *vm_prfile; /* shadow of vm_file */ + void * vm_private_data; /* was vm_pte (shared mem) */ + + #ifdef CONFIG_SWAP +diff -Naur linux-5.15/include/linux/mnt_namespace.h aufs5-linux-aufs5.15/include/linux/mnt_namespace.h +--- linux-5.15/include/linux/mnt_namespace.h 2021-10-31 23:53:10.000000000 +0300 ++++ aufs5-linux-aufs5.15/include/linux/mnt_namespace.h 2022-03-07 13:48:09.000000000 +0300 +@@ -7,12 +7,15 @@ + struct fs_struct; + struct user_namespace; + struct ns_common; ++struct vfsmount; + + extern struct mnt_namespace *copy_mnt_ns(unsigned long, struct mnt_namespace *, + struct user_namespace *, struct fs_struct *); + extern void put_mnt_ns(struct mnt_namespace *ns); + extern struct ns_common *from_mnt_ns(struct mnt_namespace *); + ++extern int is_current_mnt_ns(struct vfsmount *mnt); ++ + extern const struct file_operations proc_mounts_operations; + extern const struct file_operations proc_mountinfo_operations; + extern const struct file_operations proc_mountstats_operations; +diff -Naur linux-5.15/include/linux/splice.h aufs5-linux-aufs5.15/include/linux/splice.h +--- linux-5.15/include/linux/splice.h 2021-10-31 23:53:10.000000000 +0300 ++++ aufs5-linux-aufs5.15/include/linux/splice.h 2022-03-07 13:48:09.000000000 +0300 +@@ -93,4 +93,10 @@ + + extern const struct pipe_buf_operations page_cache_pipe_buf_ops; + extern const struct pipe_buf_operations default_pipe_buf_ops; ++ ++extern long do_splice_from(struct pipe_inode_info *pipe, struct file *out, ++ loff_t *ppos, size_t len, unsigned int flags); ++extern long do_splice_to(struct file *in, loff_t *ppos, ++ struct pipe_inode_info *pipe, size_t len, ++ unsigned int flags); + #endif +diff -Naur linux-5.15/include/uapi/linux/aufs_type.h aufs5-linux-aufs5.15/include/uapi/linux/aufs_type.h +--- linux-5.15/include/uapi/linux/aufs_type.h 1970-01-01 03:00:00.000000000 +0300 ++++ aufs5-linux-aufs5.15/include/uapi/linux/aufs_type.h 2022-03-07 13:48:09.000000000 +0300 +@@ -0,0 +1,439 @@ ++/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ ++/* ++ * Copyright (C) 2005-2021 Junjiro R. Okajima ++ */ ++ ++#ifndef __AUFS_TYPE_H__ ++#define __AUFS_TYPE_H__ ++ ++#define AUFS_NAME "aufs" ++ ++#ifdef __KERNEL__ ++/* ++ * define it before including all other headers. ++ * sched.h may use pr_* macros before defining "current", so define the ++ * no-current version first, and re-define later. ++ */ ++#define pr_fmt(fmt) AUFS_NAME " %s:%d: " fmt, __func__, __LINE__ ++#include ++#undef pr_fmt ++#define pr_fmt(fmt) \ ++ AUFS_NAME " %s:%d:%.*s[%d]: " fmt, __func__, __LINE__, \ ++ (int)sizeof(current->comm), current->comm, current->pid ++#include ++#else ++#include ++#include ++#include ++#endif /* __KERNEL__ */ ++ ++#define AUFS_VERSION "5.15" ++ ++/* todo? move this to linux-2.6.19/include/magic.h */ ++#define AUFS_SUPER_MAGIC ('a' << 24 | 'u' << 16 | 'f' << 8 | 's') ++ ++/* ---------------------------------------------------------------------- */ ++ ++#ifdef __KERNEL__ ++#ifdef CONFIG_AUFS_BRANCH_MAX_127 ++typedef int8_t aufs_bindex_t; ++#define AUFS_BRANCH_MAX 127 ++#else ++typedef int16_t aufs_bindex_t; ++#ifdef CONFIG_AUFS_BRANCH_MAX_511 ++#define AUFS_BRANCH_MAX 511 ++#elif defined(CONFIG_AUFS_BRANCH_MAX_1023) ++#define AUFS_BRANCH_MAX 1023 ++#elif defined(CONFIG_AUFS_BRANCH_MAX_32767) ++#define AUFS_BRANCH_MAX 32767 ++#endif ++#endif ++ ++#ifndef AUFS_BRANCH_MAX ++#error unknown CONFIG_AUFS_BRANCH_MAX value ++#endif ++#endif /* __KERNEL__ */ ++ ++/* ---------------------------------------------------------------------- */ ++ ++#define AUFS_FSTYPE AUFS_NAME ++ ++#define AUFS_ROOT_INO 2 ++#define AUFS_FIRST_INO 11 ++ ++#define AUFS_WH_PFX ".wh." ++#define AUFS_WH_PFX_LEN ((int)sizeof(AUFS_WH_PFX) - 1) ++#define AUFS_WH_TMP_LEN 4 ++/* a limit for rmdir/rename a dir and copyup */ ++#define AUFS_MAX_NAMELEN (NAME_MAX \ ++ - AUFS_WH_PFX_LEN * 2 /* doubly whiteouted */\ ++ - 1 /* dot */\ ++ - AUFS_WH_TMP_LEN) /* hex */ ++#define AUFS_XINO_FNAME "." AUFS_NAME ".xino" ++#define AUFS_XINO_DEFPATH "/tmp/" AUFS_XINO_FNAME ++#define AUFS_XINO_DEF_SEC 30 /* seconds */ ++#define AUFS_XINO_DEF_TRUNC 45 /* percentage */ ++#define AUFS_DIRWH_DEF 3 ++#define AUFS_RDCACHE_DEF 10 /* seconds */ ++#define AUFS_RDCACHE_MAX 3600 /* seconds */ ++#define AUFS_RDBLK_DEF 512 /* bytes */ ++#define AUFS_RDHASH_DEF 32 ++#define AUFS_WKQ_NAME AUFS_NAME "d" ++#define AUFS_MFS_DEF_SEC 30 /* seconds */ ++#define AUFS_MFS_MAX_SEC 3600 /* seconds */ ++#define AUFS_FHSM_CACHE_DEF_SEC 30 /* seconds */ ++#define AUFS_PLINK_WARN 50 /* number of plinks in a single bucket */ ++ ++/* pseudo-link maintenace under /proc */ ++#define AUFS_PLINK_MAINT_NAME "plink_maint" ++#define AUFS_PLINK_MAINT_DIR "fs/" AUFS_NAME ++#define AUFS_PLINK_MAINT_PATH AUFS_PLINK_MAINT_DIR "/" AUFS_PLINK_MAINT_NAME ++ ++/* dirren, renamed dir */ ++#define AUFS_DR_INFO_PFX AUFS_WH_PFX ".dr." ++#define AUFS_DR_BRHINO_NAME AUFS_WH_PFX "hino" ++/* whiteouted doubly */ ++#define AUFS_WH_DR_INFO_PFX AUFS_WH_PFX AUFS_DR_INFO_PFX ++#define AUFS_WH_DR_BRHINO AUFS_WH_PFX AUFS_DR_BRHINO_NAME ++ ++#define AUFS_DIROPQ_NAME AUFS_WH_PFX ".opq" /* whiteouted doubly */ ++#define AUFS_WH_DIROPQ AUFS_WH_PFX AUFS_DIROPQ_NAME ++ ++#define AUFS_BASE_NAME AUFS_WH_PFX AUFS_NAME ++#define AUFS_PLINKDIR_NAME AUFS_WH_PFX "plnk" ++#define AUFS_ORPHDIR_NAME AUFS_WH_PFX "orph" ++ ++/* doubly whiteouted */ ++#define AUFS_WH_BASE AUFS_WH_PFX AUFS_BASE_NAME ++#define AUFS_WH_PLINKDIR AUFS_WH_PFX AUFS_PLINKDIR_NAME ++#define AUFS_WH_ORPHDIR AUFS_WH_PFX AUFS_ORPHDIR_NAME ++ ++/* branch permissions and attributes */ ++#define AUFS_BRPERM_RW "rw" ++#define AUFS_BRPERM_RO "ro" ++#define AUFS_BRPERM_RR "rr" ++#define AUFS_BRATTR_COO_REG "coo_reg" ++#define AUFS_BRATTR_COO_ALL "coo_all" ++#define AUFS_BRATTR_FHSM "fhsm" ++#define AUFS_BRATTR_UNPIN "unpin" ++#define AUFS_BRATTR_ICEX "icex" ++#define AUFS_BRATTR_ICEX_SEC "icexsec" ++#define AUFS_BRATTR_ICEX_SYS "icexsys" ++#define AUFS_BRATTR_ICEX_TR "icextr" ++#define AUFS_BRATTR_ICEX_USR "icexusr" ++#define AUFS_BRATTR_ICEX_OTH "icexoth" ++#define AUFS_BRRATTR_WH "wh" ++#define AUFS_BRWATTR_NLWH "nolwh" ++#define AUFS_BRWATTR_MOO "moo" ++ ++#define AuBrPerm_RW 1 /* writable, hardlinkable wh */ ++#define AuBrPerm_RO (1 << 1) /* readonly */ ++#define AuBrPerm_RR (1 << 2) /* natively readonly */ ++#define AuBrPerm_Mask (AuBrPerm_RW | AuBrPerm_RO | AuBrPerm_RR) ++ ++#define AuBrAttr_COO_REG (1 << 3) /* copy-up on open */ ++#define AuBrAttr_COO_ALL (1 << 4) ++#define AuBrAttr_COO_Mask (AuBrAttr_COO_REG | AuBrAttr_COO_ALL) ++ ++#define AuBrAttr_FHSM (1 << 5) /* file-based hsm */ ++#define AuBrAttr_UNPIN (1 << 6) /* rename-able top dir of ++ branch. meaningless since ++ linux-3.18-rc1 */ ++ ++/* ignore error in copying XATTR */ ++#define AuBrAttr_ICEX_SEC (1 << 7) ++#define AuBrAttr_ICEX_SYS (1 << 8) ++#define AuBrAttr_ICEX_TR (1 << 9) ++#define AuBrAttr_ICEX_USR (1 << 10) ++#define AuBrAttr_ICEX_OTH (1 << 11) ++#define AuBrAttr_ICEX (AuBrAttr_ICEX_SEC \ ++ | AuBrAttr_ICEX_SYS \ ++ | AuBrAttr_ICEX_TR \ ++ | AuBrAttr_ICEX_USR \ ++ | AuBrAttr_ICEX_OTH) ++ ++#define AuBrRAttr_WH (1 << 12) /* whiteout-able */ ++#define AuBrRAttr_Mask AuBrRAttr_WH ++ ++#define AuBrWAttr_NoLinkWH (1 << 13) /* un-hardlinkable whiteouts */ ++#define AuBrWAttr_MOO (1 << 14) /* move-up on open */ ++#define AuBrWAttr_Mask (AuBrWAttr_NoLinkWH | AuBrWAttr_MOO) ++ ++#define AuBrAttr_CMOO_Mask (AuBrAttr_COO_Mask | AuBrWAttr_MOO) ++ ++/* #warning test userspace */ ++#ifdef __KERNEL__ ++#ifndef CONFIG_AUFS_FHSM ++#undef AuBrAttr_FHSM ++#define AuBrAttr_FHSM 0 ++#endif ++#ifndef CONFIG_AUFS_XATTR ++#undef AuBrAttr_ICEX ++#define AuBrAttr_ICEX 0 ++#undef AuBrAttr_ICEX_SEC ++#define AuBrAttr_ICEX_SEC 0 ++#undef AuBrAttr_ICEX_SYS ++#define AuBrAttr_ICEX_SYS 0 ++#undef AuBrAttr_ICEX_TR ++#define AuBrAttr_ICEX_TR 0 ++#undef AuBrAttr_ICEX_USR ++#define AuBrAttr_ICEX_USR 0 ++#undef AuBrAttr_ICEX_OTH ++#define AuBrAttr_ICEX_OTH 0 ++#endif ++#endif ++ ++/* the longest combination */ ++/* AUFS_BRATTR_ICEX and AUFS_BRATTR_ICEX_TR don't affect here */ ++#define AuBrPermStrSz sizeof(AUFS_BRPERM_RW \ ++ "+" AUFS_BRATTR_COO_REG \ ++ "+" AUFS_BRATTR_FHSM \ ++ "+" AUFS_BRATTR_UNPIN \ ++ "+" AUFS_BRATTR_ICEX_SEC \ ++ "+" AUFS_BRATTR_ICEX_SYS \ ++ "+" AUFS_BRATTR_ICEX_USR \ ++ "+" AUFS_BRATTR_ICEX_OTH \ ++ "+" AUFS_BRWATTR_NLWH) ++ ++typedef struct { ++ char a[AuBrPermStrSz]; ++} au_br_perm_str_t; ++ ++static inline int au_br_writable(int brperm) ++{ ++ return brperm & AuBrPerm_RW; ++} ++ ++static inline int au_br_whable(int brperm) ++{ ++ return brperm & (AuBrPerm_RW | AuBrRAttr_WH); ++} ++ ++static inline int au_br_wh_linkable(int brperm) ++{ ++ return !(brperm & AuBrWAttr_NoLinkWH); ++} ++ ++static inline int au_br_cmoo(int brperm) ++{ ++ return brperm & AuBrAttr_CMOO_Mask; ++} ++ ++static inline int au_br_fhsm(int brperm) ++{ ++ return brperm & AuBrAttr_FHSM; ++} ++ ++/* ---------------------------------------------------------------------- */ ++ ++/* ioctl */ ++enum { ++ /* readdir in userspace */ ++ AuCtl_RDU, ++ AuCtl_RDU_INO, ++ ++ AuCtl_WBR_FD, /* pathconf wrapper */ ++ AuCtl_IBUSY, /* busy inode */ ++ AuCtl_MVDOWN, /* move-down */ ++ AuCtl_BR, /* info about branches */ ++ AuCtl_FHSM_FD /* connection for fhsm */ ++}; ++ ++/* borrowed from linux/include/linux/kernel.h */ ++#ifndef ALIGN ++#ifdef _GNU_SOURCE ++#define ALIGN(x, a) __ALIGN_MASK(x, (typeof(x))(a)-1) ++#else ++#define ALIGN(x, a) (((x) + (a) - 1) & ~((a) - 1)) ++#endif ++#define __ALIGN_MASK(x, mask) (((x)+(mask))&~(mask)) ++#endif ++ ++/* borrowed from linux/include/linux/compiler-gcc3.h */ ++#ifndef __aligned ++#define __aligned(x) __attribute__((aligned(x))) ++#endif ++ ++#ifdef __KERNEL__ ++#ifndef __packed ++#define __packed __attribute__((packed)) ++#endif ++#endif ++ ++struct au_rdu_cookie { ++ uint64_t h_pos; ++ int16_t bindex; ++ uint8_t flags; ++ uint8_t pad; ++ uint32_t generation; ++} __aligned(8); ++ ++struct au_rdu_ent { ++ uint64_t ino; ++ int16_t bindex; ++ uint8_t type; ++ uint8_t nlen; ++ uint8_t wh; ++ char name[]; ++} __aligned(8); ++ ++static inline int au_rdu_len(int nlen) ++{ ++ /* include the terminating NULL */ ++ return ALIGN(sizeof(struct au_rdu_ent) + nlen + 1, ++ sizeof(uint64_t)); ++} ++ ++union au_rdu_ent_ul { ++ struct au_rdu_ent __user *e; ++ uint64_t ul; ++}; ++ ++enum { ++ AufsCtlRduV_SZ, ++ AufsCtlRduV_End ++}; ++ ++struct aufs_rdu { ++ /* input */ ++ union { ++ uint64_t sz; /* AuCtl_RDU */ ++ uint64_t nent; /* AuCtl_RDU_INO */ ++ }; ++ union au_rdu_ent_ul ent; ++ uint16_t verify[AufsCtlRduV_End]; ++ ++ /* input/output */ ++ uint32_t blk; ++ ++ /* output */ ++ union au_rdu_ent_ul tail; ++ /* number of entries which were added in a single call */ ++ uint64_t rent; ++ uint8_t full; ++ uint8_t shwh; ++ ++ struct au_rdu_cookie cookie; ++} __aligned(8); ++ ++/* ---------------------------------------------------------------------- */ ++ ++/* dirren. the branch is identified by the filename who contains this */ ++struct au_drinfo { ++ uint64_t ino; ++ union { ++ uint8_t oldnamelen; ++ uint64_t _padding; ++ }; ++ uint8_t oldname[]; ++} __aligned(8); ++ ++struct au_drinfo_fdata { ++ uint32_t magic; ++ struct au_drinfo drinfo; ++} __aligned(8); ++ ++#define AUFS_DRINFO_MAGIC_V1 ('a' << 24 | 'd' << 16 | 'r' << 8 | 0x01) ++/* future */ ++#define AUFS_DRINFO_MAGIC_V2 ('a' << 24 | 'd' << 16 | 'r' << 8 | 0x02) ++ ++/* ---------------------------------------------------------------------- */ ++ ++struct aufs_wbr_fd { ++ uint32_t oflags; ++ int16_t brid; ++} __aligned(8); ++ ++/* ---------------------------------------------------------------------- */ ++ ++struct aufs_ibusy { ++ uint64_t ino, h_ino; ++ int16_t bindex; ++} __aligned(8); ++ ++/* ---------------------------------------------------------------------- */ ++ ++/* error code for move-down */ ++/* the actual message strings are implemented in aufs-util.git */ ++enum { ++ EAU_MVDOWN_OPAQUE = 1, ++ EAU_MVDOWN_WHITEOUT, ++ EAU_MVDOWN_UPPER, ++ EAU_MVDOWN_BOTTOM, ++ EAU_MVDOWN_NOUPPER, ++ EAU_MVDOWN_NOLOWERBR, ++ EAU_Last ++}; ++ ++/* flags for move-down */ ++#define AUFS_MVDOWN_DMSG 1 ++#define AUFS_MVDOWN_OWLOWER (1 << 1) /* overwrite lower */ ++#define AUFS_MVDOWN_KUPPER (1 << 2) /* keep upper */ ++#define AUFS_MVDOWN_ROLOWER (1 << 3) /* do even if lower is RO */ ++#define AUFS_MVDOWN_ROLOWER_R (1 << 4) /* did on lower RO */ ++#define AUFS_MVDOWN_ROUPPER (1 << 5) /* do even if upper is RO */ ++#define AUFS_MVDOWN_ROUPPER_R (1 << 6) /* did on upper RO */ ++#define AUFS_MVDOWN_BRID_UPPER (1 << 7) /* upper brid */ ++#define AUFS_MVDOWN_BRID_LOWER (1 << 8) /* lower brid */ ++#define AUFS_MVDOWN_FHSM_LOWER (1 << 9) /* find fhsm attr for lower */ ++#define AUFS_MVDOWN_STFS (1 << 10) /* req. stfs */ ++#define AUFS_MVDOWN_STFS_FAILED (1 << 11) /* output: stfs is unusable */ ++#define AUFS_MVDOWN_BOTTOM (1 << 12) /* output: no more lowers */ ++ ++/* index for move-down */ ++enum { ++ AUFS_MVDOWN_UPPER, ++ AUFS_MVDOWN_LOWER, ++ AUFS_MVDOWN_NARRAY ++}; ++ ++/* ++ * additional info of move-down ++ * number of free blocks and inodes. ++ * subset of struct kstatfs, but smaller and always 64bit. ++ */ ++struct aufs_stfs { ++ uint64_t f_blocks; ++ uint64_t f_bavail; ++ uint64_t f_files; ++ uint64_t f_ffree; ++}; ++ ++struct aufs_stbr { ++ int16_t brid; /* optional input */ ++ int16_t bindex; /* output */ ++ struct aufs_stfs stfs; /* output when AUFS_MVDOWN_STFS set */ ++} __aligned(8); ++ ++struct aufs_mvdown { ++ uint32_t flags; /* input/output */ ++ struct aufs_stbr stbr[AUFS_MVDOWN_NARRAY]; /* input/output */ ++ int8_t au_errno; /* output */ ++} __aligned(8); ++ ++/* ---------------------------------------------------------------------- */ ++ ++union aufs_brinfo { ++ /* PATH_MAX may differ between kernel-space and user-space */ ++ char _spacer[4096]; ++ struct { ++ int16_t id; ++ int perm; ++ char path[]; ++ }; ++} __aligned(8); ++ ++/* ---------------------------------------------------------------------- */ ++ ++#define AuCtlType 'A' ++#define AUFS_CTL_RDU _IOWR(AuCtlType, AuCtl_RDU, struct aufs_rdu) ++#define AUFS_CTL_RDU_INO _IOWR(AuCtlType, AuCtl_RDU_INO, struct aufs_rdu) ++#define AUFS_CTL_WBR_FD _IOW(AuCtlType, AuCtl_WBR_FD, \ ++ struct aufs_wbr_fd) ++#define AUFS_CTL_IBUSY _IOWR(AuCtlType, AuCtl_IBUSY, struct aufs_ibusy) ++#define AUFS_CTL_MVDOWN _IOWR(AuCtlType, AuCtl_MVDOWN, \ ++ struct aufs_mvdown) ++#define AUFS_CTL_BRINFO _IOW(AuCtlType, AuCtl_BR, union aufs_brinfo) ++#define AUFS_CTL_FHSM_FD _IOW(AuCtlType, AuCtl_FHSM_FD, int) ++ ++#endif /* __AUFS_TYPE_H__ */ +diff -Naur linux-5.15/kernel/fork.c aufs5-linux-aufs5.15/kernel/fork.c +--- linux-5.15/kernel/fork.c 2021-10-31 23:53:10.000000000 +0300 ++++ aufs5-linux-aufs5.15/kernel/fork.c 2022-03-07 13:48:09.000000000 +0300 +@@ -573,7 +573,7 @@ + if (file) { + struct address_space *mapping = file->f_mapping; + +- get_file(file); ++ vma_get_file(tmp); + i_mmap_lock_write(mapping); + if (tmp->vm_flags & VM_SHARED) + mapping_allow_writable(mapping); +diff -Naur linux-5.15/kernel/locking/lockdep.c aufs5-linux-aufs5.15/kernel/locking/lockdep.c +--- linux-5.15/kernel/locking/lockdep.c 2021-10-31 23:53:10.000000000 +0300 ++++ aufs5-linux-aufs5.15/kernel/locking/lockdep.c 2022-03-07 13:48:09.000000000 +0300 +@@ -189,7 +189,7 @@ + struct lock_class lock_classes[MAX_LOCKDEP_KEYS]; + static DECLARE_BITMAP(lock_classes_in_use, MAX_LOCKDEP_KEYS); + +-static inline struct lock_class *hlock_class(struct held_lock *hlock) ++inline struct lock_class *lockdep_hlock_class(struct held_lock *hlock) + { + unsigned int class_idx = hlock->class_idx; + +@@ -210,6 +210,7 @@ + */ + return lock_classes + class_idx; + } ++#define hlock_class(hlock) lockdep_hlock_class(hlock) + + #ifdef CONFIG_LOCK_STAT + static DEFINE_PER_CPU(struct lock_class_stats[MAX_LOCKDEP_KEYS], cpu_lock_stats); +diff -Naur linux-5.15/MAINTAINERS aufs5-linux-aufs5.15/MAINTAINERS +--- linux-5.15/MAINTAINERS 2021-10-31 23:53:10.000000000 +0300 ++++ aufs5-linux-aufs5.15/MAINTAINERS 2022-03-07 13:48:09.000000000 +0300 +@@ -3122,6 +3122,19 @@ + F: kernel/audit* + F: lib/*audit.c + ++AUFS (advanced multi layered unification filesystem) FILESYSTEM ++M: "J. R. Okajima" ++L: aufs-users@lists.sourceforge.net (members only) ++L: linux-unionfs@vger.kernel.org ++S: Supported ++W: http://aufs.sourceforge.net ++T: git://github.com/sfjro/aufs4-linux.git ++F: Documentation/ABI/testing/debugfs-aufs ++F: Documentation/ABI/testing/sysfs-aufs ++F: Documentation/filesystems/aufs/ ++F: fs/aufs/ ++F: include/uapi/linux/aufs_type.h ++ + AUXILIARY DISPLAY DRIVERS + M: Miguel Ojeda + S: Maintained +diff -Naur linux-5.15/mm/filemap.c aufs5-linux-aufs5.15/mm/filemap.c +--- linux-5.15/mm/filemap.c 2021-10-31 23:53:10.000000000 +0300 ++++ aufs5-linux-aufs5.15/mm/filemap.c 2022-03-07 13:48:09.000000000 +0300 +@@ -3350,7 +3350,7 @@ + vm_fault_t ret = VM_FAULT_LOCKED; + + sb_start_pagefault(mapping->host->i_sb); +- file_update_time(vmf->vma->vm_file); ++ vma_file_update_time(vmf->vma); + lock_page(page); + if (page->mapping != mapping) { + unlock_page(page); +diff -Naur linux-5.15/mm/Makefile aufs5-linux-aufs5.15/mm/Makefile +--- linux-5.15/mm/Makefile 2021-10-31 23:53:10.000000000 +0300 ++++ aufs5-linux-aufs5.15/mm/Makefile 2022-03-07 13:48:09.000000000 +0300 +@@ -52,7 +52,7 @@ + mm_init.o percpu.o slab_common.o \ + compaction.o vmacache.o \ + interval_tree.o list_lru.o workingset.o \ +- debug.o gup.o mmap_lock.o $(mmu-y) ++ prfile.o debug.o gup.o mmap_lock.o $(mmu-y) + + # Give 'page_alloc' its own module-parameter namespace + page-alloc-y := page_alloc.o +diff -Naur linux-5.15/mm/mmap.c aufs5-linux-aufs5.15/mm/mmap.c +--- linux-5.15/mm/mmap.c 2021-10-31 23:53:10.000000000 +0300 ++++ aufs5-linux-aufs5.15/mm/mmap.c 2022-03-07 13:48:09.000000000 +0300 +@@ -183,7 +183,7 @@ + if (vma->vm_ops && vma->vm_ops->close) + vma->vm_ops->close(vma); + if (vma->vm_file) +- fput(vma->vm_file); ++ vma_fput(vma); + mpol_put(vma_policy(vma)); + vm_area_free(vma); + return next; +@@ -952,7 +952,7 @@ + if (remove_next) { + if (file) { + uprobe_munmap(next, next->vm_start, next->vm_end); +- fput(file); ++ vma_fput(vma); + } + if (next->anon_vma) + anon_vma_merge(vma, next); +@@ -1873,7 +1873,7 @@ + return addr; + + unmap_and_free_vma: +- fput(vma->vm_file); ++ vma_fput(vma); + vma->vm_file = NULL; + + /* Undo any partial mapping done by a device driver. */ +@@ -2731,7 +2731,7 @@ + goto out_free_mpol; + + if (new->vm_file) +- get_file(new->vm_file); ++ vma_get_file(new); + + if (new->vm_ops && new->vm_ops->open) + new->vm_ops->open(new); +@@ -2750,7 +2750,7 @@ + if (new->vm_ops && new->vm_ops->close) + new->vm_ops->close(new); + if (new->vm_file) +- fput(new->vm_file); ++ vma_fput(new); + unlink_anon_vmas(new); + out_free_mpol: + mpol_put(vma_policy(new)); +@@ -2945,7 +2945,7 @@ + struct vm_area_struct *vma; + unsigned long populate = 0; + unsigned long ret = -EINVAL; +- struct file *file; ++ struct file *file, *prfile; + + pr_warn_once("%s (%d) uses deprecated remap_file_pages() syscall. See Documentation/vm/remap_file_pages.rst.\n", + current->comm, current->pid); +@@ -3001,10 +3001,27 @@ + if (vma->vm_flags & VM_LOCKED) + flags |= MAP_LOCKED; + +- file = get_file(vma->vm_file); ++ vma_get_file(vma); ++ file = vma->vm_file; ++ prfile = vma->vm_prfile; + ret = do_mmap(vma->vm_file, start, size, + prot, flags, pgoff, &populate, NULL); ++ if (!IS_ERR_VALUE(ret) && file && prfile) { ++ struct vm_area_struct *new_vma; ++ ++ new_vma = find_vma(mm, ret); ++ if (!new_vma->vm_prfile) ++ new_vma->vm_prfile = prfile; ++ if (new_vma != vma) ++ get_file(prfile); ++ } ++ /* ++ * two fput()s instead of vma_fput(vma), ++ * coz vma may not be available anymore. ++ */ + fput(file); ++ if (prfile) ++ fput(prfile); + out: + mmap_write_unlock(mm); + if (populate) +@@ -3285,7 +3302,7 @@ + if (anon_vma_clone(new_vma, vma)) + goto out_free_mempol; + if (new_vma->vm_file) +- get_file(new_vma->vm_file); ++ vma_get_file(new_vma); + if (new_vma->vm_ops && new_vma->vm_ops->open) + new_vma->vm_ops->open(new_vma); + vma_link(mm, new_vma, prev, rb_link, rb_parent); +diff -Naur linux-5.15/mm/nommu.c aufs5-linux-aufs5.15/mm/nommu.c +--- linux-5.15/mm/nommu.c 2021-10-31 23:53:10.000000000 +0300 ++++ aufs5-linux-aufs5.15/mm/nommu.c 2022-03-07 13:48:09.000000000 +0300 +@@ -523,7 +523,7 @@ + up_write(&nommu_region_sem); + + if (region->vm_file) +- fput(region->vm_file); ++ vmr_fput(region); + + /* IO memory and memory shared directly out of the pagecache + * from ramfs/tmpfs mustn't be released here */ +@@ -655,7 +655,7 @@ + if (vma->vm_ops && vma->vm_ops->close) + vma->vm_ops->close(vma); + if (vma->vm_file) +- fput(vma->vm_file); ++ vma_fput(vma); + put_nommu_region(vma->vm_region); + vm_area_free(vma); + } +@@ -1175,7 +1175,7 @@ + goto error_just_free; + } + } +- fput(region->vm_file); ++ vmr_fput(region); + kmem_cache_free(vm_region_jar, region); + region = pregion; + result = start; +@@ -1252,10 +1252,10 @@ + up_write(&nommu_region_sem); + error: + if (region->vm_file) +- fput(region->vm_file); ++ vmr_fput(region); + kmem_cache_free(vm_region_jar, region); + if (vma->vm_file) +- fput(vma->vm_file); ++ vma_fput(vma); + vm_area_free(vma); + return ret; + +diff -Naur linux-5.15/mm/prfile.c aufs5-linux-aufs5.15/mm/prfile.c +--- linux-5.15/mm/prfile.c 1970-01-01 03:00:00.000000000 +0300 ++++ aufs5-linux-aufs5.15/mm/prfile.c 2022-03-07 13:48:09.000000000 +0300 +@@ -0,0 +1,86 @@ ++// SPDX-License-Identifier: GPL-2.0 ++/* ++ * Mainly for aufs which mmap(2) different file and wants to print different ++ * path in /proc/PID/maps. ++ * Call these functions via macros defined in linux/mm.h. ++ * ++ * See Documentation/filesystems/aufs/design/06mmap.txt ++ * ++ * Copyright (c) 2014-2021 Junjro R. Okajima ++ * Copyright (c) 2014 Ian Campbell ++ */ ++ ++#include ++#include ++#include ++ ++/* #define PRFILE_TRACE */ ++static inline void prfile_trace(struct file *f, struct file *pr, ++ const char func[], int line, const char func2[]) ++{ ++#ifdef PRFILE_TRACE ++ if (pr) ++ pr_info("%s:%d: %s, %pD2\n", func, line, func2, f); ++#endif ++} ++ ++void vma_do_file_update_time(struct vm_area_struct *vma, const char func[], ++ int line) ++{ ++ struct file *f = vma->vm_file, *pr = vma->vm_prfile; ++ ++ prfile_trace(f, pr, func, line, __func__); ++ file_update_time(f); ++ if (f && pr) ++ file_update_time(pr); ++} ++ ++struct file *vma_do_pr_or_file(struct vm_area_struct *vma, const char func[], ++ int line) ++{ ++ struct file *f = vma->vm_file, *pr = vma->vm_prfile; ++ ++ prfile_trace(f, pr, func, line, __func__); ++ return (f && pr) ? pr : f; ++} ++ ++void vma_do_get_file(struct vm_area_struct *vma, const char func[], int line) ++{ ++ struct file *f = vma->vm_file, *pr = vma->vm_prfile; ++ ++ prfile_trace(f, pr, func, line, __func__); ++ get_file(f); ++ if (f && pr) ++ get_file(pr); ++} ++ ++void vma_do_fput(struct vm_area_struct *vma, const char func[], int line) ++{ ++ struct file *f = vma->vm_file, *pr = vma->vm_prfile; ++ ++ prfile_trace(f, pr, func, line, __func__); ++ fput(f); ++ if (f && pr) ++ fput(pr); ++} ++ ++#ifndef CONFIG_MMU ++struct file *vmr_do_pr_or_file(struct vm_region *region, const char func[], ++ int line) ++{ ++ struct file *f = region->vm_file, *pr = region->vm_prfile; ++ ++ prfile_trace(f, pr, func, line, __func__); ++ return (f && pr) ? pr : f; ++} ++ ++void vmr_do_fput(struct vm_region *region, const char func[], int line) ++{ ++ struct file *f = region->vm_file, *pr = region->vm_prfile; ++ ++ prfile_trace(f, pr, func, line, __func__); ++ fput(f); ++ if (f && pr) ++ fput(pr); ++} ++#endif /* !CONFIG_MMU */ diff --git a/0001-ROSA-ima-allow-to-off-modules-signature-check-dynami.patch b/0001-ROSA-ima-allow-to-off-modules-signature-check-dynami.patch new file mode 100644 index 0000000..f3412d3 --- /dev/null +++ b/0001-ROSA-ima-allow-to-off-modules-signature-check-dynami.patch @@ -0,0 +1,37 @@ +From 36dc5cf3039c0751fe95370a247ca1c23c06571c Mon Sep 17 00:00:00 2001 +From: Mikhail Novosyolov +Date: Mon, 10 Aug 2020 10:38:20 +0300 +Subject: [PATCH] ROSA: ima: allow to off modules signature check dynamically + +Allow module.sig_enforce=0 kernel cmdline, not only module.sig_enforce=1 +It allows to keep CONFIG_MODULE_SIG_FORCE=y, but disable it when really needed +without recompiling the kernel (it may be impossible, e.g. in certified systems). + +GRUB or another bootloader is password-protected when needed, +so I am not afraid much that someone will be able to turn it off when not needed. + +ROSA-specific patch. +This violates requirements of "secure boot", but currently we do not have secure boot in ROSA. + +Signed-off-by: Mikhail Novosyolov +--- + kernel/module.c | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +diff --git a/kernel/module.c b/kernel/module.c +index 6baa1080c..118d8ee60 100644 +--- a/kernel/module.c ++++ b/kernel/module.c +@@ -274,7 +274,7 @@ + + #ifdef CONFIG_MODULE_SIG + static bool sig_enforce = IS_ENABLED(CONFIG_MODULE_SIG_FORCE); +-module_param(sig_enforce, bool_enable_only, 0644); ++module_param(sig_enforce, bool, 0644); + + void set_module_sig_enforced(void) + { + +-- +2.17.1 + diff --git a/0001-Remove-RPM-illegal-chars-from-module-version.patch b/0001-Remove-RPM-illegal-chars-from-module-version.patch new file mode 100644 index 0000000..f968273 --- /dev/null +++ b/0001-Remove-RPM-illegal-chars-from-module-version.patch @@ -0,0 +1,40 @@ +From 6af124938e319e736cc09a621de907d4328b70e0 Mon Sep 17 00:00:00 2001 +From: Mikhail Novosyolov +Date: Thu, 18 Jun 2020 18:29:39 +0300 +Subject: [PATCH] Remove RPM-illegal chars from module version + +$ modinfo aacraid.ko | grep ^version: +version: 1.2.1[50877]-custom + +kmod-deps.sh from rpm-openmandriva-setup is an RPM generator of Provides, it generates: +"kmod(aacraid) = 1.2.1[50877]_custom" +'[' and ']' are illegal characters in RPM + +I have no idea how to deal with it in kmod-deps.sh and do not want to drop this/these provide(s), +so let me just patch the module version inside the kernel. + +Converting from '1.2.1[50877]-custom' to '1.2.1_50877-custom' +No idea if any external scripts rely on parsing this version, hope that no. + +Upstreamized: not needed +Signed-off-by: Mikhail Novosyolov +--- + drivers/scsi/aacraid/linit.c | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +diff --git a/drivers/scsi/aacraid/linit.c b/drivers/scsi/aacraid/linit.c +index 4a858789e6c5..fbded922a52e 100644 +--- a/drivers/scsi/aacraid/linit.c ++++ b/drivers/scsi/aacraid/linit.c +@@ -53,7 +53,7 @@ + #ifdef AAC_DRIVER_BUILD + #define _str(x) #x + #define str(x) _str(x) +-#define AAC_DRIVER_FULL_VERSION AAC_DRIVER_VERSION "[" str(AAC_DRIVER_BUILD) "]" AAC_DRIVER_BRANCH ++#define AAC_DRIVER_FULL_VERSION AAC_DRIVER_VERSION "_" str(AAC_DRIVER_BUILD) AAC_DRIVER_BRANCH + #else + #define AAC_DRIVER_FULL_VERSION AAC_DRIVER_VERSION AAC_DRIVER_BRANCH + #endif +-- +2.25.1 + diff --git a/0001-Revert-kallsyms-unexport-kallsyms_lookup_name-and-ka.patch b/0001-Revert-kallsyms-unexport-kallsyms_lookup_name-and-ka.patch new file mode 100644 index 0000000..017301d --- /dev/null +++ b/0001-Revert-kallsyms-unexport-kallsyms_lookup_name-and-ka.patch @@ -0,0 +1,30 @@ +Subject: [PATCH] Revert "kallsyms: unexport kallsyms_lookup_name() and + kallsyms_on_each_symbol()" + +This reverts commit 0bd476e6c67190b5eb7b6e105c8db8ff61103281. +https://lwn.net/Articles/813350/ + +anbox kernel modules require kallsyms_lookup_name(), they are not propietary stuff like e.g. Nvidia, I want it to work more than trying to fight with violations of GPL where I do not have enough power. + +Update for 5.15.28 + +diff --git a/kernel/kallsyms.c b/kernel/kallsyms.c +--- a/kernel/kallsyms.c ++++ b/kernel/kallsyms.c +@@ -203,6 +203,7 @@ + } + return module_kallsyms_lookup_name(name); + } ++EXPORT_SYMBOL_GPL(kallsyms_lookup_name); + + #ifdef CONFIG_LIVEPATCH + /* +@@ -226,6 +227,7 @@ + } + return 0; + } ++EXPORT_SYMBOL_GPL(kallsyms_on_each_symbol); + #endif /* CONFIG_LIVEPATCH */ + + static unsigned long get_symbol_pos(unsigned long addr, + diff --git a/0001-altha.patch b/0001-altha.patch new file mode 100644 index 0000000..1df45ba --- /dev/null +++ b/0001-altha.patch @@ -0,0 +1,1172 @@ + Documentation/admin-guide/LSM/AltHa.rst | 101 +++++++++ + Documentation/admin-guide/LSM/index.rst | 1 + + security/Kconfig | 4 +- + security/Makefile | 2 + + security/altha/Kconfig | 11 + + security/altha/Makefile | 3 + + security/altha/altha_lsm.c | 351 ++++++++++++++++++++++++++++++++ + security/kiosk/Kconfig | 9 + + security/kiosk/Makefile | 3 + + security/kiosk/kiosk-test.sh | 252 +++++++++++++++++++++++ + security/kiosk/kiosk_lsm.c | 337 ++++++++++++++++++++++++++++++ + 11 files changed, 1073 insertions(+), 1 deletion(-) + +diff --git a/Documentation/admin-guide/LSM/AltHa.rst b/Documentation/admin-guide/LSM/AltHa.rst +new file mode 100644 +index 000000000000..be698709d3f0 +--- /dev/null ++++ b/Documentation/admin-guide/LSM/AltHa.rst +@@ -0,0 +1,101 @@ ++==== ++AltHa ++==== ++ ++AltHa is a Linux Security Module currently has three userspace hardening options: ++ * ignore SUID on binaries (with exceptions possible); ++ * prevent running selected script interpreters in interactive mode; ++ * disable open file unlinking in selected dirs. ++ * enable kiosk mode ++ ++ ++It is selectable at build-time with ``CONFIG_SECURITY_ALTHA``, and should be ++enabled in runtime by command line option ``altha=1`` and configured ++through sysctls in ``/proc/sys/kernel/altha``. ++ ++NoSUID ++============ ++Modern Linux systems can be used with minimal (or even zero at least for OWL and ALT) usage of SUID programms, but in many cases in full-featured desktop or server systems there are plenty of them: uncounted and sometimes unnecessary. Privileged programms are always an attack surface, but mounting filesystems with ``nosuid`` flag doesn't provide enough granularity in SUID binaries management. This LSM module provides a single control point for all SUID binaries. When this submodule is enabled, SUID bits on all binaries except explicitly listed are system-wide ignored. ++ ++Sysctl parameters and defaults: ++ ++* ``kernel.altha.nosuid.enabled = 0``, set to 1 to enable ++* ``kernel.altha.nosuid.exceptions =``, colon-separated list of enabled SUID binaries, for example: ``/bin/su:/usr/libexec/hasher-priv/hasher-priv`` ++ ++RestrScript ++============ ++There is a one way to hardening: prevent users from executing ther own arbitrary code. Traditionally it can be done setting on user-writable filesystems ``noexec`` flag. But modern script languages such as Python also can be used to write exploits or even load arbitary machine code via ``dlopen`` and users can start scripts from ``noexec`` filesystem starting interpreter directly. ++Restrscript LSM submodule provides a way to restrict some programms to be executed directly, but allows to execute them as shebang handler. ++ ++Sysctl parameters and defaults: ++ ++* ``kernel.altha.rstrscript.enabled = 0``, set to 1 to enable ++* ``kernel.altha.rstrscript.interpreters =``, colon-separated list of restricted interpreters for example: ``/lib64/ld-linux-x86-64.so.2:/usr/bin/python:/usr/bin/python3:/usr/bin/perl:/usr/bin/tclsh``. Symlinks are supported in both ways: you can set symlink to interpreter as exception and interpreter and all symlinks on it will be restricted. ++ ++Adding ld-linux into blocking list prevents running interpreters via ``ld-linux interpreter``. ++ ++Note: in this configuration all scripts starting with ``#!/usr/bin/env python`` will be blocked. ++ ++OLock ++============ ++Unlink disabling for open files needed for Russian certification, but this is a nasty feature leading to DOS. ++ ++Sysctl parameters and defaults: ++ ++* ``kernel.altha.olock.enabled = 0``, set to 1 to enable ++* ``kernel.altha.olock.dirs =``, colon-separated list of dirs, for example: ``/var/lib/something:/tmp/something``. ++ ++Kiosk ++=========== ++Disable execution for everything and everyone (including system users ++and root, if required) except given whitelists. ++ ++Kiosk interface uses generic netlink framework. ++Interface name: ``altha`` ++ ++Kiosk packet attributes:: ++ ++ static struct nla_policy kiosk_attrs_policy[KIOSK_MAX_ATTR] = { ++ [KIOSK_ACTION] = { ++ .type = NLA_S16, ++ }, ++ [KIOSK_DATA] = { ++ .type = NLA_STRING, ++ .maxlen = MAX_DATA /* 1024 */ ++ }, ++ }; ++ ++Possible kiosk modes:: ++ ++ enum kiosk_mode { ++ KIOSK_PERMISSIVE = 0, /* kiosk is disabled */ ++ KIOSK_NONSYSTEM, /* kiosk is enabled for users with uid >= 500 */ ++ KIOSK_ALL, /* kiosk is enabled for all users */ ++ }; ++ ++In ``KIOSK_ALL`` mode root will be restricted if running from tty ++Otherwise application will be executed anyway, ++enabling the system to boot without garbage in whitelists. ++ ++Possible kiosk actions:: ++ ++ enum altha_kiosk_action { ++ KIOSK_SET_MODE = 0, /* set or get mode, see below */ ++ KIOSK_USERLIST_ADD, /* add app to user whitelist */ ++ KIOSK_USERLIST_DEL, /* remove app from user whitelist */ ++ KIOSK_SYSLIST_ADD, /* add app to system whitelist */ ++ KIOSK_SYSLIST_DEL, /* remove app from system whitelist */ ++ KIOSK_USER_LIST, /* retrieve user whitelist, see below */ ++ KIOSK_SYSTEM_LIST, /* retrieve system whitelist */ ++ }; ++ ++``KIOSK_ACTION`` attribute is used. ++ ++``SET_MODE`` action will send current mode if ``KIOSK_DATA`` is empty. ++ ++When ``KIOSK_USER_LIST`` or ``KIOSK_SYSTEM_LIST`` action is requested, kernel sends ++the first item from the list and waits for another request. ++When end of list is reached, it sends an empty string and it will be safe ++for client to request another list. ++ ++``LD_*`` cheats will not be applied when kiosk is activated. +diff --git a/Documentation/admin-guide/LSM/index.rst b/Documentation/admin-guide/LSM/index.rst +index a6ba95fbaa9f..20b57e7adadd 100644 +--- a/Documentation/admin-guide/LSM/index.rst ++++ b/Documentation/admin-guide/LSM/index.rst +@@ -47,3 +47,4 @@ subdirectories. + tomoyo + Yama + SafeSetID ++ AltHa +diff --git a/security/Kconfig b/security/Kconfig +index 0ced7fd33e4d..42a72aa188dd 100644 +--- a/security/Kconfig ++++ b/security/Kconfig +@@ -239,6 +239,8 @@ source "security/yama/Kconfig" + source "security/safesetid/Kconfig" + source "security/lockdown/Kconfig" + source "security/landlock/Kconfig" ++source "security/altha/Kconfig" ++source "security/kiosk/Kconfig" + + source "security/integrity/Kconfig" + +@@ -282,7 +284,7 @@ config LSM + default "landlock,lockdown,yama,loadpin,safesetid,integrity,apparmor,selinux,smack,tomoyo,bpf" if DEFAULT_SECURITY_APPARMOR + default "landlock,lockdown,yama,loadpin,safesetid,integrity,tomoyo,bpf" if DEFAULT_SECURITY_TOMOYO + default "landlock,lockdown,yama,loadpin,safesetid,integrity,bpf" if DEFAULT_SECURITY_DAC +- default "landlock,lockdown,yama,loadpin,safesetid,integrity,selinux,smack,tomoyo,apparmor,bpf" ++ default "landlock,lockdown,yama,loadpin,safesetid,integrity,selinux,smack,tomoyo,apparmor,bpf,altha,kiosk" + help + A comma-separated list of LSMs, in initialization order. + Any LSMs left off this list will be ignored. This can be +diff --git a/security/Makefile b/security/Makefile +index 18121f8f85cd..4fb7ea65d2c9 100644 +--- a/security/Makefile ++++ b/security/Makefile +@@ -24,6 +24,8 @@ obj-$(CONFIG_SECURITY_LOCKDOWN_LSM) += lockdown/ + obj-$(CONFIG_CGROUPS) += device_cgroup.o + obj-$(CONFIG_BPF_LSM) += bpf/ + obj-$(CONFIG_SECURITY_LANDLOCK) += landlock/ ++obj-$(CONFIG_SECURITY_ALTHA) += altha/ ++obj-$(CONFIG_SECURITY_KIOSK) += kiosk/ + + # Object integrity file lists + obj-$(CONFIG_INTEGRITY) += integrity/ +diff --git a/security/altha/Kconfig b/security/altha/Kconfig +new file mode 100644 +index 000000000000..4bafdef4e58e +--- /dev/null ++++ b/security/altha/Kconfig +@@ -0,0 +1,11 @@ ++config SECURITY_ALTHA ++ bool "AltHa security module" ++ depends on SECURITY ++ default n ++ help ++ Some hardening options: ++ * ignore SUID on binaries (with exceptions possible); ++ * prevent running selected script interprers in interactive move; ++ * WxorX for filesystems (with exceptions possible); ++ ++ If you are unsure how to answer this question, answer N. +diff --git a/security/altha/Makefile b/security/altha/Makefile +new file mode 100644 +index 000000000000..56735b157567 +--- /dev/null ++++ b/security/altha/Makefile +@@ -0,0 +1,3 @@ ++obj-$(CONFIG_SECURITY_ALTHA) := altha.o ++ ++altha-y := altha_lsm.o +diff --git a/security/altha/altha_lsm.c b/security/altha/altha_lsm.c +new file mode 100644 +index 000000000000..c670ad7ed458 +--- /dev/null ++++ b/security/altha/altha_lsm.c +@@ -0,0 +1,351 @@ ++/* ++ * AltHa Linux Security Module ++ * ++ * Author: Anton Boyarshinov ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License version 2, as ++ * published by the Free Software Foundation. ++ * ++ */ ++ ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++ ++#define ALTHA_PARAMS_SIZE 4096 ++char proc_nosuid_exceptions[ALTHA_PARAMS_SIZE]; ++char proc_interpreters[ALTHA_PARAMS_SIZE]; ++char proc_olock_dirs[ALTHA_PARAMS_SIZE]; ++ ++/* Boot time disable flag */ ++static bool altha_enabled = 0; ++ ++/* sysctl flags */ ++static int nosuid_enabled; ++static int rstrscript_enabled; ++static int olock_enabled; ++ ++/* Boot parameter handing */ ++module_param_named(enabled, altha_enabled, bool, S_IRUGO); ++ ++static int __init altha_enabled_setup(char *str) ++{ ++ unsigned long enabled; ++ int error = kstrtoul(str, 0, &enabled); ++ if (!error) ++ altha_enabled = enabled ? 1 : 0; ++ return 1; ++} ++ ++__setup("altha=", altha_enabled_setup); ++ ++struct altha_list_struct { ++ struct path path; ++ char * spath; ++ char * spath_p; ++ struct list_head list; ++}; ++ ++/* Lists handling */ ++DECLARE_RWSEM(nosuid_exceptions_sem); ++DECLARE_RWSEM(interpreters_sem); ++DECLARE_RWSEM(olock_dirs_sem); ++LIST_HEAD(nosuid_exceptions_list); ++LIST_HEAD(interpreters_list); ++LIST_HEAD(olock_dirs_list); ++ ++static int altha_list_handler(struct ctl_table *table, int write, ++ void __user * buffer, size_t * lenp, ++ loff_t * ppos) ++{ ++ struct altha_list_struct *item, *tmp; ++ struct list_head *list_struct; ++ char *p, *fluid; ++ char *copy_buffer; ++ struct rw_semaphore *sem = table->extra2; ++ unsigned long error = proc_dostring(table, write, buffer, lenp, ppos); ++ down_write(sem); ++ if (error) ++ goto out; ++ ++ if (write && !error) { ++ copy_buffer = kmalloc(ALTHA_PARAMS_SIZE, GFP_KERNEL); ++ if (!copy_buffer) { ++ pr_err ++ ("AltHa: can't get memory for copy_buffer processing sysctl\n"); ++ error = -1; ++ goto out; ++ } ++ ++ list_struct = (struct list_head *)(table->extra1); ++ /*empty list and that fill with new info */ ++ list_for_each_entry_safe(item, tmp, list_struct, list) { ++ list_del(&item->list); ++ path_put(&item->path); ++ kfree(item->spath_p); ++ kfree(item); ++ } ++ ++ strlcpy(copy_buffer, table->data, ALTHA_PARAMS_SIZE); ++ ++ /* buffer can have a garbage after \n */ ++ p = strchrnul(copy_buffer, '\n'); ++ *p = 0; ++ ++ /* for strsep usage */ ++ fluid = copy_buffer; ++ ++ while ((p = strsep(&fluid, ":\n")) != NULL) { ++ if (strlen(p)) { ++ item = kmalloc(sizeof(*item), GFP_KERNEL); ++ if (item) ++ item->spath_p = kmalloc(PATH_MAX, GFP_KERNEL); ++ if (!item || !item->spath_p) { ++ pr_err ++ ("AltHa: can't get memory processing sysctl\n"); ++ kfree(copy_buffer); ++ error = -1; ++ goto out; ++ } ++ if (kern_path(p, LOOKUP_FOLLOW, &item->path)) { ++ pr_info ++ ("AltHa: error lookup '%s'\n", p); ++ kfree(item); ++ } else { ++ item->spath=d_path(&item->path,item->spath_p,PATH_MAX); ++ list_add_tail(&item->list, list_struct); ++ } ++ } ++ } ++ kfree(copy_buffer); ++ } ++out: ++ up_write(sem); ++ return error; ++} ++ ++struct ctl_path nosuid_sysctl_path[] = { ++ {.procname = "kernel",}, ++ {.procname = "altha",}, ++ {.procname = "nosuid",}, ++ {} ++}; ++ ++static struct ctl_table nosuid_sysctl_table[] = { ++ { ++ .procname = "enabled", ++ .data = &nosuid_enabled, ++ .maxlen = sizeof(int), ++ .mode = 0644, ++ .proc_handler = proc_dointvec_minmax, ++ }, ++ { ++ .procname = "exceptions", ++ .data = proc_nosuid_exceptions, ++ .maxlen = ALTHA_PARAMS_SIZE, ++ .mode = 0644, ++ .proc_handler = altha_list_handler, ++ .extra1 = &nosuid_exceptions_list, ++ .extra2 = &nosuid_exceptions_sem, ++ }, ++ {} ++}; ++ ++struct ctl_path rstrscript_sysctl_path[] = { ++ {.procname = "kernel",}, ++ {.procname = "altha",}, ++ {.procname = "rstrscript",}, ++ {} ++}; ++ ++static struct ctl_table rstrscript_sysctl_table[] = { ++ { ++ .procname = "enabled", ++ .data = &rstrscript_enabled, ++ .maxlen = sizeof(int), ++ .mode = 0644, ++ .proc_handler = &proc_dointvec_minmax, ++ }, ++ { ++ .procname = "interpreters", ++ .data = proc_interpreters, ++ .maxlen = ALTHA_PARAMS_SIZE, ++ .mode = 0644, ++ .proc_handler = altha_list_handler, ++ .extra1 = &interpreters_list, ++ .extra2 = &interpreters_sem, ++ }, ++ {} ++}; ++ ++struct ctl_path olock_sysctl_path[] = { ++ {.procname = "kernel",}, ++ {.procname = "altha",}, ++ {.procname = "olock",}, ++ {} ++}; ++ ++static struct ctl_table olock_sysctl_table[] = { ++ { ++ .procname = "enabled", ++ .data = &olock_enabled, ++ .maxlen = sizeof(int), ++ .mode = 0644, ++ .proc_handler = &proc_dointvec_minmax, ++ }, ++ { ++ .procname = "dirs", ++ .data = proc_olock_dirs, ++ .maxlen = ALTHA_PARAMS_SIZE, ++ .mode = 0644, ++ .proc_handler = altha_list_handler, ++ .extra1 = &olock_dirs_list, ++ .extra2 = &olock_dirs_sem, ++ }, ++ {} ++}; ++ ++struct altha_readdir_callback { ++ struct dir_context ctx; ++ u64 inode; ++ int found; ++}; ++ ++int is_olock_dir(struct inode *inode) ++{ ++ struct altha_list_struct *node; ++ down_read(&olock_dirs_sem); ++ list_for_each_entry(node, &olock_dirs_list, list) { ++ struct inode *exc_inode = node->path.dentry->d_inode; ++ if (exc_inode == inode) { ++ up_read(&olock_dirs_sem); ++ return 1; ++ } ++ } ++ up_read(&olock_dirs_sem); ++ return 0; ++} ++ ++/* Hooks */ ++static int altha_bprm_creds_from_file(struct linux_binprm *bprm, struct file * fi) ++{ ++ struct altha_list_struct *node; ++ /* when it's not a shebang issued script interpreter */ ++ if (rstrscript_enabled && bprm->executable == bprm->interpreter) { ++ char *path_p; ++ char *path_buffer; ++ ++ path_buffer = kmalloc(PATH_MAX, GFP_KERNEL); ++ if (!path_buffer) ++ return -ENOMEM; ++ ++ path_p = d_path(&bprm->file->f_path,path_buffer,PATH_MAX); ++ down_read(&interpreters_sem); ++ list_for_each_entry(node, &interpreters_list, list) { ++ if (strcmp(path_p, node->spath) == 0) { ++ uid_t cur_uid = from_kuid(bprm->cred->user_ns, ++ bprm->cred->uid); ++ pr_notice_ratelimited ++ ("AltHa/RestrScript: %s is blocked to run directly by %d\n", ++ bprm->filename, cur_uid); ++ up_read(&interpreters_sem); ++ kfree(path_buffer); ++ return -EPERM; ++ } ++ } ++ up_read(&interpreters_sem); ++ kfree(path_buffer); ++ } ++ if (unlikely(nosuid_enabled && ++ !uid_eq(bprm->cred->uid, bprm->cred->euid))) { ++ char *path_p; ++ char *path_buffer; ++ uid_t cur_uid; ++ ++ path_buffer = kmalloc(PATH_MAX, GFP_KERNEL); ++ if (!path_buffer) ++ return -ENOMEM; ++ ++ cur_uid = from_kuid(bprm->cred->user_ns, bprm->cred->uid); ++ path_p = d_path(&bprm->file->f_path,path_buffer,PATH_MAX); ++ down_read(&nosuid_exceptions_sem); ++ list_for_each_entry(node, &nosuid_exceptions_list, list) { ++ if (strcmp(path_p, node->spath) == 0) { ++ pr_notice_ratelimited ++ ("AltHa/NoSUID: %s permitted to setuid from %d\n", ++ bprm->filename, cur_uid); ++ up_read(&nosuid_exceptions_sem); ++ kfree(path_buffer); ++ return 0; ++ } ++ } ++ up_read(&nosuid_exceptions_sem); ++ pr_notice_ratelimited ++ ("AltHa/NoSUID: %s prevented to setuid from %d\n", ++ bprm->filename, cur_uid); ++ bprm->cred->euid = bprm->cred->uid; ++ kfree(path_buffer); ++ } ++ return 0; ++} ++ ++/* For OLock */ ++static int altha_inode_unlink(struct inode *inode, struct dentry *dentry) ++{ ++ if (olock_enabled && (atomic_read(&dentry->d_inode->i_writecount) ++#ifdef CONFIG_IMA ++ || atomic_read(&dentry->d_inode->i_readcount) ++#endif ++ )) { ++ if (is_olock_dir(inode)) ++ return -EPERM; ++ } ++ return 0; ++} ++ ++/* Initialization */ ++ ++static struct security_hook_list altha_hooks[] = { ++ LSM_HOOK_INIT(bprm_creds_from_file, altha_bprm_creds_from_file), ++ LSM_HOOK_INIT(inode_unlink, altha_inode_unlink), ++}; ++ ++static int __init altha_init(void) ++{ ++ if (altha_enabled) { ++ pr_info("AltHa enabled.\n"); ++ security_add_hooks(altha_hooks, ARRAY_SIZE(altha_hooks),"altha"); ++ ++ if (!register_sysctl_paths ++ (nosuid_sysctl_path, nosuid_sysctl_table)) ++ panic("AltHa: NoSUID sysctl registration failed.\n"); ++ ++ if (!register_sysctl_paths ++ (rstrscript_sysctl_path, rstrscript_sysctl_table)) ++ panic ++ ("AltHa: RestrScript sysctl registration failed.\n"); ++ ++ if (!register_sysctl_paths ++ (olock_sysctl_path, olock_sysctl_table)) ++ panic("AltHa: OLock sysctl registration failed.\n"); ++ } else ++ pr_info("AltHa disabled.\n"); ++ return 0; ++} ++ ++DEFINE_LSM(altha) = { ++ .name = "altha", ++ .init = altha_init, ++}; ++ +diff --git a/security/kiosk/Kconfig b/security/kiosk/Kconfig +new file mode 100644 +index 000000000000..c92214abf62f +--- /dev/null ++++ b/security/kiosk/Kconfig +@@ -0,0 +1,9 @@ ++config SECURITY_KIOSK ++ bool "kiosk module" ++ depends on SECURITY ++ default n ++ help ++ Implements "Kiosk mode", in which user can be restricted to run anything ++ not permitted by admin. ++ ++ If you are unsure how to answer this question, answer N. +diff --git a/security/kiosk/Makefile b/security/kiosk/Makefile +new file mode 100644 +index 000000000000..d29aba92bb3e +--- /dev/null ++++ b/security/kiosk/Makefile +@@ -0,0 +1,3 @@ ++obj-$(CONFIG_SECURITY_KIOSK) := kiosk.o ++ ++kiosk-y := kiosk_lsm.o +diff --git a/security/kiosk/kiosk-test.sh b/security/kiosk/kiosk-test.sh +new file mode 100755 +index 000000000000..9ab8774183e6 +--- /dev/null ++++ b/security/kiosk/kiosk-test.sh +@@ -0,0 +1,252 @@ ++#!/bin/bash ++# SPDX-License-Identifier: GPL-2.0 ++# Kiosk test suite: just run the script ++# ++ ++try_run() { ++ echo "Test: $*" >&2 ++ if "$@"; then ++ echo "Success." >&2 ++ else ++ echo "Failed: exit code $?" >&2 ++ exit 1 ++ fi ++} ++ ++# File appending and removing ++ ++clean () { ++ kiosk -m "0" ++ ++ for i in `kiosk --user-list` ++ do ++ kiosk -U "$i" ++ done ++} ++ ++check_empty() { ++ TMPFILE=$(mktemp) ++ try_run kiosk --user-list > $TMPFILE ++ ++ if [ -s "$TMPFILE" ] ++ then ++ echo "Failed: lists are not empty" >&2 ++ rm -f $TMPFILE ++ exit 1 ++ fi ++ ++ rm -f $TMPFILE ++} ++ ++kiosk_user_append() { ++ echo `readlink -f "$1"` >> $TMPFILE ++ try_run kiosk --user-list-append "$1" ++} ++ ++kiosk_user_remove() { ++ try_run kiosk --user-list-remove "$1" ++} ++ ++kiosk_user_list_check() { ++ TMPFILE=$1 ++ LISTFILE=$(mktemp) ++ try_run kiosk --user-list > $LISTFILE ++ ++ for i in `cat "$LISTFILE"` ++ do ++ try_run kiosk_user_remove "$i" ++ done ++ ++ if cmp --quiet $TMPFILE $LISTFILE; then ++ echo "Success: user-list match" >&2 ++ else ++ echo "Failed: user-list does not match" >&2 ++ diff -u $TMPFILE $LISTFILE ++ exit 1 ++ fi ++ ++ rm -f $TMPFILE $LISTFILE ++} ++ ++TMPFILE=$(mktemp) ++ ++clean ++ ++kiosk_user_append /bin/sh ++kiosk_user_append /bin/bash ++kiosk_user_append /bin/date ++kiosk_user_append /bin/ls ++kiosk_user_list_check "$TMPFILE" ++ ++# Mode changing ++kiosk_set_mode() { ++ echo "$1" > $TMPFILE ++ try_run kiosk --set-mode "$1" ++} ++ ++kiosk_check_mode() { ++ TMPFILE=$1 ++ MODEFILE=$(mktemp) ++ try_run kiosk --get-mode > $MODEFILE ++ ++ if cmp --quiet $TMPFILE $MODEFILE; then ++ echo "Success: mode match" >&2 ++ else ++ echo "Failed: mode does not match" >&2 ++ exit 1 ++ fi ++ ++ rm -rf $TMPFILE $MODEFILE ++} ++ ++check_empty ++ ++TMPFILE=$(mktemp) ++ ++kiosk_set_mode "1" ++kiosk_check_mode "$TMPFILE" ++kiosk_set_mode "0" ++kiosk_check_mode "$TMPFILE" ++ ++# Exec testing ++try_exec() { ++ REACT=$1 ++ shift ++ ++ echo "Executing $@" >&2 ++ "$@" >/dev/null ++ if [ "x$REACT" = "xdeny" -a $? -ne 126 ] ++ then ++ echo "Error: application was executed while it should not be" >&2 ++ echo "React is $REACT, error code is $?" >&2 ++ exit 1 ++ fi ++ if [ "x$REACT" = "xperm" -a $? -eq 126 ] ++ then ++ echo "Error: application was not executed while it should be" >&2 ++ echo "React is $REACT, error code is $?" >&2 ++ exit 1 ++ fi ++} ++ ++try_exec_user() { ++ REACT=$1 ++ shift ++ ++ try_exec $1 su - -c \"$@\" test ++} ++ ++check_empty ++ ++#necessary ++raise_guard() { ++ kiosk_user_append /bin/bash ++ kiosk_user_append /usr/bin/id ++ kiosk_user_append /bin/egrep ++ kiosk_user_append /bin/grep ++ kiosk_user_append /bin/hostname ++ kiosk_user_append /usr/bin/natspec ++ kiosk_user_append /usr/share/console-scripts/vt_activate_unicode ++ kiosk_user_append /usr/share/console-scripts/vt_activate_user_map ++ kiosk_user_append /sbin/consoletype ++} ++ ++stop_guard() { ++ kiosk_user_remove /bin/bash ++ kiosk_user_remove /usr/bin/id ++ kiosk_user_remove /bin/egrep ++ kiosk_user_remove /bin/grep ++ kiosk_user_remove /bin/hostname ++ kiosk_user_remove /usr/bin/natspec ++ kiosk_user_remove /usr/share/console-scripts/vt_activate_unicode ++ kiosk_user_remove /usr/share/console-scripts/vt_activate_user_map ++ kiosk_user_remove /sbin/consoletype ++} ++ ++raise_guard ++kiosk_user_append /bin/false ++ ++kiosk_set_mode "0" ++try_exec_user perm /bin/false ++try_exec_user perm /bin/true ++kiosk_set_mode "1" ++try_exec_user perm /bin/false ++try_exec_user deny /bin/true ++kiosk_set_mode "0" ++ ++kiosk_user_remove /bin/false ++stop_guard ++ ++# TODO: ++# bogus append to list (non-exist file) ++check_empty ++kiosk_user_append /bin/tru ++ ++# bogus append to list (no params) ++kiosk_user_append "" ++kiosk_user_append ++ ++kiosk_user_append /bin/true ++kiosk_user_append /bin/false ++ ++# bogus remove from list (non-exist file) ++kiosk_user_remove /bin/tru ++ ++# bogus remove from list (file is not in list) ++kiosk_user_remove /bin/date ++kiosk_user_remove /bin/false ++kiosk_user_remove /bin/true ++ ++# bogus remove from list (list is empty) ++check_empty ++kiosk_user_remove /bin/false ++ ++# bogus remove from list (no params) ++kiosk_user_remove "" ++kiosk_user_remove ++ ++# bogus mode (no params) ++kiosk_set_mode "" ++ ++# bogus mode ++kiosk_set_mode "3" ++ ++FILE="/home/test/test" ++cp /bin/true $FILE ++kiosk_user_append $FILE ++kiosk_set_mode "1" ++ ++raise_guard ++ ++# user executes his own script ++chmod 555 $FILE ++chown test $FILE ++chgrp test $FILE ++try_exec_user deny $FILE ++ ++# user executes his script with his group ++chown root $FILE ++try_exec_user perm $FILE ++chmod g+w $FILE ++try_exec_user deny $FILE ++chmod g-w $FILE ++ ++# user executes script without permissions ++chgrp root $FILE ++try_exec_user perm $FILE ++chmod o+w $FILE ++try_exec_user deny $FILE ++chmod o-w $FILE ++ ++chmod 000 $FILE ++setfacl -m "u:test:rwx" $FILE ++try_exec_user deny $FILE ++setfacl -m "u:test:r-x" $FILE ++try_exec_user perm $FILE ++getfacl $FILE ++ ++stop_guard ++ ++kiosk_set_mode "0" ++kiosk_user_remove $FILE ++rm -fv $FILE +diff --git a/security/kiosk/kiosk_lsm.c b/security/kiosk/kiosk_lsm.c +new file mode 100644 +index 000000000000..cf7a7df65995 +--- /dev/null ++++ b/security/kiosk/kiosk_lsm.c +@@ -0,0 +1,337 @@ ++// SPDX-License-Identifier: GPL-2.0 ++/* ++ * Kiosk Linux Security Module ++ * ++ * Author: Oleg Solovyov ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License version 2, as ++ * published by the Free Software Foundation. ++ * ++ */ ++ ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++ ++#include ++ ++#define MAX_PATH 1024 ++ ++struct kiosk_list_struct { ++ struct path path; ++ struct list_head list; ++}; ++ ++static struct kiosk_list_struct *list_iter; ++static struct genl_family genl_kiosk_family; ++static char pathbuf[MAX_PATH]; ++ ++/* Lists handling */ ++static DECLARE_RWSEM(user_sem); ++static LIST_HEAD(user_list); ++ ++enum kiosk_cmd { ++ KIOSK_UNSPEC = 0, ++ KIOSK_REQUEST, ++ KIOSK_REPLY, ++ KIOSK_CMD_LAST, ++}; ++ ++enum kiosk_mode { ++ KIOSK_PERMISSIVE = 0, ++ KIOSK_NONSYSTEM, ++ KIOSK_MODE_LAST, ++}; ++ ++static int kiosk_mode = KIOSK_PERMISSIVE; ++ ++enum kiosk_action { ++ KIOSK_SET_MODE = 0, ++ KIOSK_USERLIST_ADD, ++ KIOSK_USERLIST_DEL, ++ KIOSK_USER_LIST, ++}; ++ ++enum kiosk_attrs { ++ KIOSK_NOATTR = 0, ++ KIOSK_ACTION, ++ KIOSK_DATA, ++ KIOSK_MAX_ATTR, ++}; ++ ++static struct nla_policy kiosk_policy[KIOSK_MAX_ATTR] = { ++ [KIOSK_ACTION] = { ++ .type = NLA_S16, ++ }, ++ [KIOSK_DATA] = { ++ .type = NLA_STRING, ++ .len = sizeof(pathbuf) - 1 ++ }, ++}; ++ ++static int kiosk_add_item(struct list_head *list, char *filename, ++ struct rw_semaphore *sem) ++{ ++ struct kiosk_list_struct *item, *tmp; ++ int mode; ++ int rc; ++ ++ item = kmalloc(sizeof(*item), GFP_KERNEL); ++ if (!item) ++ return -ENOMEM; ++ ++ rc = kern_path(filename, LOOKUP_FOLLOW, &item->path); ++ if (rc) { ++ pr_err("Kiosk: error lookup '%s'\n", filename); ++ kfree(item); ++ return rc; ++ } ++ ++ mode = d_inode(item->path.dentry)->i_mode; ++ if (!S_ISREG(mode)) { ++ pr_err("Kiosk: given file is not a regular file, mode: %d\n", ++ mode); ++ path_put(&item->path); ++ kfree(item); ++ return -EINVAL; ++ } ++ ++ down_write(sem); ++ list_for_each_entry(tmp, list, list) { ++ if (item->path.dentry == tmp->path.dentry) { ++ up_write(sem); ++ path_put(&item->path); ++ kfree(item); ++ return 0; ++ } ++ } ++ list_add_tail(&item->list, list); ++ up_write(sem); ++ ++ return 0; ++} ++ ++static int kiosk_remove_item(struct list_head *list, char *filename, ++ struct rw_semaphore *sem) ++{ ++ struct kiosk_list_struct *item, *tmp; ++ struct path user_path; ++ int rc; ++ ++ rc = kern_path(filename, LOOKUP_FOLLOW, &user_path); ++ if (rc) ++ return rc; ++ ++ down_write(sem); ++ list_for_each_entry_safe(item, tmp, list, list) { ++ if (item->path.dentry == user_path.dentry) { ++ if (item == list_iter) { ++ pr_err("Kiosk: list is being iterated, item removing is unsafe\n"); ++ up_write(sem); ++ path_put(&user_path); ++ return -EAGAIN; ++ } ++ list_del(&item->list); ++ path_put(&item->path); ++ kfree(item); ++ } ++ } ++ up_write(sem); ++ path_put(&user_path); ++ return 0; ++} ++ ++static int kiosk_nl_send_msg(struct sk_buff *skb, struct genl_info *info, ++ char *msg) ++{ ++ int msg_size; ++ int res; ++ struct nlmsghdr *nlh; ++ struct sk_buff *skb_out; ++ ++ msg_size = strlen(msg) + 1; ++ /* we put string so add space for NUL-terminator */ ++ ++ skb_out = genlmsg_new(msg_size, GFP_KERNEL); ++ if (!skb_out) ++ return -ENOMEM; ++ ++ nlh = genlmsg_put_reply(skb_out, info, &genl_kiosk_family, 0, ++ KIOSK_REPLY); ++ if (!nlh) { ++ nlmsg_free(skb_out); ++ return -ENOMEM; ++ } ++ ++ res = nla_put_string(skb_out, KIOSK_DATA, msg); ++ if (res) { ++ nlmsg_free(skb_out); ++ return res; ++ } ++ ++ genlmsg_end(skb_out, nlh); ++ return genlmsg_reply(skb_out, info); ++} ++ ++static int kiosk_list_items(struct list_head *list, struct rw_semaphore *sem, ++ struct sk_buff *skb, struct genl_info *info) ++{ ++ char *path; ++ ++ down_read(sem); ++ ++ if (!list_iter) { /* list iterating started */ ++ list_iter = list_first_entry_or_null(list, ++ struct kiosk_list_struct, ++ list); ++ } else if (list_iter == list_last_entry(list, ++ struct kiosk_list_struct, ++ list)) { ++ /* hit list end, cleaning temp variable */ ++ list_iter = NULL; ++ } else { /* iterating list */ ++ list_iter = list_next_entry(list_iter, list); ++ } ++ ++ if (list_iter) ++ path = d_path(&list_iter->path, pathbuf, sizeof(pathbuf)); ++ else ++ path = ""; ++ ++ up_read(sem); ++ return kiosk_nl_send_msg(skb, info, path); ++} ++ ++static int kiosk_genl_doit(struct sk_buff *skb, struct genl_info *info) ++{ ++ int action; ++ ++ if (info->attrs[KIOSK_DATA]) ++ strlcpy(pathbuf, nla_data(info->attrs[KIOSK_DATA]), sizeof(pathbuf)); ++ else ++ pathbuf[0] = '\0'; ++ ++ action = info->attrs[KIOSK_ACTION] ? ++ nla_get_s16(info->attrs[KIOSK_ACTION]) : -1; ++ ++ switch (action) { ++ case KIOSK_SET_MODE: { ++ int new_mode; ++ int error; ++ char buf[4]; ++ ++ if (!strlen(pathbuf)) { ++ /* we want to retrieve current mode */ ++ snprintf(buf, sizeof(buf), "%d", kiosk_mode); ++ return kiosk_nl_send_msg(skb, info, buf); ++ } ++ ++ error = kstrtouint(pathbuf, 0, &new_mode); ++ ++ if (error || new_mode < 0 ++ || new_mode >= KIOSK_MODE_LAST) { ++ return -EINVAL; ++ } ++ kiosk_mode = new_mode; ++ return 0; ++ } ++ case KIOSK_USERLIST_ADD: ++ return kiosk_add_item(&user_list, pathbuf, &user_sem); ++ case KIOSK_USERLIST_DEL: ++ return kiosk_remove_item(&user_list, pathbuf, ++ &user_sem); ++ case KIOSK_USER_LIST: ++ return kiosk_list_items(&user_list, &user_sem, skb, ++ info); ++ default: ++ return -EINVAL; ++ } ++} ++ ++static const struct genl_ops genl_kiosk_ops[] = { ++ { ++ .doit = kiosk_genl_doit, ++ .flags = GENL_ADMIN_PERM, ++ }, ++}; ++ ++static struct genl_family genl_kiosk_family = { ++ .name = "kiosk", ++ .version = 1, ++ .netnsok = false, ++ .module = THIS_MODULE, ++ .ops = genl_kiosk_ops, ++ .n_ops = ARRAY_SIZE(genl_kiosk_ops), ++ .maxattr = KIOSK_MAX_ATTR, ++ .policy = kiosk_policy, ++}; ++ ++/* Hooks */ ++static int kiosk_bprm_check_security(struct linux_binprm *bprm) ++{ ++ uid_t cur_uid = __kuid_val(bprm->cred->uid); ++ struct kiosk_list_struct *node; ++ ++ if (kiosk_mode == KIOSK_PERMISSIVE) ++ return 0; ++ ++ if (cur_uid >= 500) { ++ bprm->secureexec = 1; ++ if (bprm->executable != bprm->interpreter) ++ return 0; ++ ++ if (cur_uid == __kuid_val(bprm->file->f_inode->i_uid) || ++ (bprm->file->f_inode->i_mode & 0022)) { ++ pr_notice_ratelimited("Kiosk: %s is writable for %d\n", ++ bprm->filename, cur_uid); ++ return -EPERM; ++ } ++ ++ down_read(&user_sem); ++ list_for_each_entry(node, &user_list, list) { ++ if (bprm->file->f_path.dentry == node->path.dentry) { ++ up_read(&user_sem); ++ return 0; ++ } ++ } ++ up_read(&user_sem); ++ } else { ++ return 0; ++ } ++ ++ pr_notice_ratelimited("Kiosk: %s prevented to exec from %d\n", ++ bprm->filename, cur_uid); ++ return -EPERM; ++} ++ ++static struct security_hook_list kiosk_hooks[] = { ++ LSM_HOOK_INIT(bprm_check_security, kiosk_bprm_check_security), ++}; ++ ++static int __init kiosk_init(void) ++{ ++ int rc; ++ ++ rc = genl_register_family(&genl_kiosk_family); ++ ++ if (rc) { ++ pr_alert("Kiosk: Error registering family.\n"); ++ return rc; ++ } ++ ++ pr_info("Kiosk: Netlink family registered.\n"); ++ security_add_hooks(kiosk_hooks, ARRAY_SIZE(kiosk_hooks), "kiosk"); ++ ++ return 0; ++} ++ ++DEFINE_LSM(kiosk) = { ++ .name = "kiosk", ++ .init = kiosk_init, ++}; diff --git a/0001-audit-make-it-less-verbose.patch b/0001-audit-make-it-less-verbose.patch new file mode 100644 index 0000000..581d3de --- /dev/null +++ b/0001-audit-make-it-less-verbose.patch @@ -0,0 +1,34 @@ +From edce12c92c0d1e02a6f41344290ee7adee745ef4 Mon Sep 17 00:00:00 2001 +From: Evgenii Shatokhin +Date: Wed, 11 Dec 2019 21:10:42 +0300 +Subject: [PATCH] audit: make it less verbose + +It seems, if audit itself is not installed and therefore nothing listens +to the messages from the kernel's audit subsystem, the latter spams the +kernel log with such messages. + +Let us make them debug-level and thus invisible by default. + +http://bugs.rosalinux.ru/show_bug.cgi?id=6235 +http://bugs.rosalinux.ru/show_bug.cgi?id=6459 +Signed-off-by: Mikhail Novosyolov +--- + kernel/audit.c | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +diff --git a/kernel/audit.c b/kernel/audit.c +index 68cee3bc8cfe..805633090ea5 100644 +--- a/kernel/audit.c ++++ b/kernel/audit.c +@@ -535,7 +535,7 @@ static void kauditd_printk_skb(struct sk_buff *skb) + char *data = nlmsg_data(nlh); + + if (nlh->nlmsg_type != AUDIT_EOE && printk_ratelimit()) +- pr_notice("type=%d %s\n", nlh->nlmsg_type, data); ++ pr_debug("type=%d %s\n", nlh->nlmsg_type, data); + } + + /** +-- +2.25.1 + diff --git a/0001-crypto-support-loading-GOST-signed-kernel-modules.patch b/0001-crypto-support-loading-GOST-signed-kernel-modules.patch new file mode 100644 index 0000000..e567c0d --- /dev/null +++ b/0001-crypto-support-loading-GOST-signed-kernel-modules.patch @@ -0,0 +1,39 @@ +Subject: [PATCH] crypto: support loading GOST-signed kernel modules + +Support loading kernel modules signed with: +* 1.2.643.7.1.1.1.1 id-tc26-gost3410-12-256 +* 1.2.643.7.1.1.1.2 id-tc26-gost3410-12-512 + +Update for 5.15.28 + +diff --git a/crypto/asymmetric_keys/pkcs7_parser.c b/crypto/asymmetric_keys/pkcs7_parser.c +--- a/crypto/asymmetric_keys/pkcs7_parser.c ++++ b/crypto/asymmetric_keys/pkcs7_parser.c +@@ -248,6 +248,12 @@ + case OID_sha224: + ctx->sinfo->sig->hash_algo = "sha224"; + break; ++ case OID_gost2012Digest256: ++ ctx->sinfo->sig->hash_algo = "streebog256"; ++ break; ++ case OID_gost2012Digest512: ++ ctx->sinfo->sig->hash_algo = "streebog512"; ++ break; + default: + printk("Unsupported digest algo: %u\n", ctx->last_oid); + return -ENOPKG; +@@ -277,6 +283,11 @@ + ctx->sinfo->sig->pkey_algo = "ecdsa"; + ctx->sinfo->sig->encoding = "x962"; + break; ++ case OID_gost2012PKey256: ++ case OID_gost2012PKey512: ++ ctx->sinfo->sig->pkey_algo = "ecrdsa"; ++ ctx->sinfo->sig->encoding = "raw"; ++ break; + default: + printk("Unsupported pkey algo: %u\n", ctx->last_oid); + return -ENOPKG; +-- +2.17.1 + diff --git a/0001-disable-mrproper-prepare-scripts-configs-in-devel-rp.patch b/0001-disable-mrproper-prepare-scripts-configs-in-devel-rp.patch new file mode 100644 index 0000000..5fd644f --- /dev/null +++ b/0001-disable-mrproper-prepare-scripts-configs-in-devel-rp.patch @@ -0,0 +1,102 @@ +Subject: [PATCH] disable mrproper prepare scripts configs in devel rpms + +This is for disabling *config, mrproper, prepare, scripts on -devel rpms +Needed, because otherwise the -devel won't build correctly. + +Update for 5.15.28 + +diff --git a/Makefile b/Makefile +--- a/Makefile ++++ b/Makefile +@@ -1199,8 +1199,7 @@ + # Carefully list dependencies so we do not try to build scripts twice + # in parallel + PHONY += scripts +-scripts: scripts_basic scripts_dtc +- $(Q)$(MAKE) $(build)=$(@) ++scripts: + + # Things we need to do before we recursively start building the kernel + # or the modules are listed in "prepare". +@@ -1219,7 +1218,7 @@ + $(Q)$(MAKE) $(build)=. + + # All the preparing.. +-prepare: prepare0 ++prepare: + + PHONY += remove-stale-files + remove-stale-files: +@@ -1520,15 +1519,7 @@ + compile_commands.json .thinlto-cache + + # Directories & files removed with 'make mrproper' +-MRPROPER_FILES += include/config include/generated \ +- arch/$(SRCARCH)/include/generated .tmp_objdiff \ +- debian snap tar-install \ +- .config .config.old .version \ +- Module.symvers \ +- certs/signing_key.pem certs/signing_key.x509 \ +- certs/x509.genkey \ +- vmlinux-gdb.py \ +- *.spec ++MRPROPER_FILES += "" + + # clean - Delete most, but leave enough to build external modules + # +@@ -1545,13 +1536,10 @@ + # mrproper - Delete all generated files, including .config + # + mrproper: rm-files := $(wildcard $(MRPROPER_FILES)) +-mrproper-dirs := $(addprefix _mrproper_,scripts) + +-PHONY += $(mrproper-dirs) mrproper +-$(mrproper-dirs): +- $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@) ++PHONY += mrproper + +-mrproper: clean $(mrproper-dirs) ++mrproper: clean + $(call cmd,rmfiles) + + # distclean +diff --git a/scripts/kconfig/Makefile b/scripts/kconfig/Makefile +--- a/scripts/kconfig/Makefile ++++ b/scripts/kconfig/Makefile +@@ -54,11 +54,9 @@ + cmp -s .tmp.config .config || \ + (mv -f .config .config.old.1; \ + mv -f .tmp.config .config; \ +- $< $(silent) --oldconfig $(Kconfig); \ + mv -f .config.old.1 .config.old) \ + else \ + mv -f .tmp.config .config; \ +- $< $(silent) --oldconfig $(Kconfig); \ + fi + $(Q)rm -f .tmp.config + +@@ -74,24 +72,14 @@ + PHONY += $(simple-targets) + + $(simple-targets): $(obj)/conf +- $(Q)$< $(silent) --$@ $(Kconfig) + + PHONY += savedefconfig defconfig + + savedefconfig: $(obj)/conf +- $(Q)$< $(silent) --$@=defconfig $(Kconfig) + + defconfig: $(obj)/conf +-ifneq ($(wildcard $(srctree)/arch/$(SRCARCH)/configs/$(KBUILD_DEFCONFIG)),) +- @$(kecho) "*** Default configuration is based on '$(KBUILD_DEFCONFIG)'" +- $(Q)$< $(silent) --defconfig=arch/$(SRCARCH)/configs/$(KBUILD_DEFCONFIG) $(Kconfig) +-else +- @$(kecho) "*** Default configuration is based on target '$(KBUILD_DEFCONFIG)'" +- $(Q)$(MAKE) -f $(srctree)/Makefile $(KBUILD_DEFCONFIG) +-endif + + %_defconfig: $(obj)/conf +- $(Q)$< $(silent) --defconfig=arch/$(SRCARCH)/configs/$@ $(Kconfig) + + configfiles=$(wildcard $(srctree)/kernel/configs/$@ $(srctree)/arch/$(SRCARCH)/configs/$@) + diff --git a/0001-perf-skip-xmlto-validation.patch b/0001-perf-skip-xmlto-validation.patch new file mode 100644 index 0000000..09c812e --- /dev/null +++ b/0001-perf-skip-xmlto-validation.patch @@ -0,0 +1,30 @@ +From 8d376cb0241182ae4859db3aa7f790996054ae75 Mon Sep 17 00:00:00 2001 +From: Evgenii Shatokhin +Date: Wed, 11 Dec 2019 21:12:06 +0300 +Subject: [PATCH] perf: skip xmlto validation + +Perf docs are built after all the kernels. To validate the xml files +generated during that process, xmlto tries to get DTD files from the Net. +If it fails, the whole build fails, which is unfortunate. Let us avoid this. + +Signed-off-by: Mikhail Novosyolov +--- + tools/perf/Documentation/Makefile | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +diff --git a/tools/perf/Documentation/Makefile b/tools/perf/Documentation/Makefile +index 6e54979c2124..ccbc7a68769d 100644 +--- a/tools/perf/Documentation/Makefile ++++ b/tools/perf/Documentation/Makefile +@@ -51,7 +51,7 @@ ASCIIDOC=asciidoc + ASCIIDOC_EXTRA += --unsafe -f asciidoc.conf + ASCIIDOC_HTML = xhtml11 + MANPAGE_XSL = manpage-normal.xsl +-XMLTO_EXTRA = ++XMLTO_EXTRA = --skip-validation + INSTALL?=install + RM ?= rm -f + DOC_REF = origin/man +-- +2.25.1 + diff --git a/0001-sign-file-full-functionality-with-modern-LibreSSL.patch b/0001-sign-file-full-functionality-with-modern-LibreSSL.patch new file mode 100644 index 0000000..7cd3dd7 --- /dev/null +++ b/0001-sign-file-full-functionality-with-modern-LibreSSL.patch @@ -0,0 +1,47 @@ +From 7fac9b5a88bf45574b92cc3ad74fac32f3bacbcc Mon Sep 17 00:00:00 2001 +From: Mikhail Novosyolov +Date: Thu, 19 Mar 2020 00:15:41 +0300 +Subject: [PATCH] sign-file: full functionality with modern LibreSSL + +Current pre-release version of LibreSSL has enabled CMS support, +and now sign-file is fully functional with it. + +See https://github.com/libressl-portable/openbsd/commits/master + +To test buildability with LibreSSL: +~$ git clone https://github.com/libressl-portable/portable.git +~$ cd portable && ./autogen.sh +~$ ./configure --prefix=/opt/libressl +~$ make +~# make install +Go to the kernel source tree and: +~$ gcc -I/opt/libressl/include -L /opt/libressl/lib -lcrypto -Wl,-rpath,/opt/libressl/lib scripts/sign-file.c -o scripts/sign-file + +Fixes: f8688017 ("sign-file: fix build error in sign-file.c with libressl") + +Signed-off-by: Mikhail Novosyolov +--- + scripts/sign-file.c | 7 ++++--- + 1 file changed, 4 insertions(+), 3 deletions(-) + +diff --git a/scripts/sign-file.c b/scripts/sign-file.c +index fbd34b8e8f57..fd4d7c31d1bf 100644 +--- a/scripts/sign-file.c ++++ b/scripts/sign-file.c +@@ -41,9 +41,10 @@ + * signing with anything other than SHA1 - so we're stuck with that if such is + * the case. + */ +-#if defined(LIBRESSL_VERSION_NUMBER) || \ +- OPENSSL_VERSION_NUMBER < 0x10000000L || \ +- defined(OPENSSL_NO_CMS) ++#if defined(OPENSSL_NO_CMS) || \ ++ ( defined(LIBRESSL_VERSION_NUMBER) \ ++ && (LIBRESSL_VERSION_NUMBER < 0x3010000fL) ) || \ ++ OPENSSL_VERSION_NUMBER < 0x10000000L + #define USE_PKCS7 + #endif + #ifndef USE_PKCS7 +-- +2.20.1 + diff --git a/0601-baikalm.patch b/0601-baikalm.patch new file mode 100644 index 0000000..2e66853 --- /dev/null +++ b/0601-baikalm.patch @@ -0,0 +1,23032 @@ + Documentation/devicetree/configfs-overlays.txt | 31 + + arch/arm/boot/.gitignore | 2 + + arch/arm64/Kconfig.platforms | 13 + + arch/arm64/boot/dts/Makefile | 1 + + arch/arm64/boot/dts/baikal/Makefile | 10 + + arch/arm64/boot/dts/baikal/bm-dbm.dts | 367 + + arch/arm64/boot/dts/baikal/bm-mbm.dtsi | 240 + + arch/arm64/boot/dts/baikal/bm-mbm10.dts | 30 + + arch/arm64/boot/dts/baikal/bm-mbm20-lvds.dts | 102 + + arch/arm64/boot/dts/baikal/bm-mbm20.dts | 102 + + arch/arm64/boot/dts/baikal/bm-qemu.dts | 163 + + arch/arm64/boot/dts/baikal/bm1000-clocks.dtsi | 363 + + arch/arm64/boot/dts/baikal/bm1000-cpufreq.dtsi | 249 + + arch/arm64/boot/dts/baikal/bm1000.dtsi | 1059 +++ + arch/arm64/boot/dts/rockchip/Makefile | 2 + + arch/arm64/boot/dts/rockchip/overlay/Makefile | 22 + + .../dts/rockchip/overlay/README.rockchip-overlays | 106 + + .../dts/rockchip/overlay/rockchip-dwc3-0-host.dts | 13 + + .../dts/rockchip/overlay/rockchip-fixup.scr-cmd | 62 + + .../boot/dts/rockchip/overlay/rockchip-i2c7.dts | 11 + + .../boot/dts/rockchip/overlay/rockchip-i2c8.dts | 11 + + .../dts/rockchip/overlay/rockchip-pcie-gen2.dts | 12 + + .../rockchip/overlay/rockchip-spi-jedec-nor.dts | 72 + + .../dts/rockchip/overlay/rockchip-spi-spidev.dts | 72 + + .../boot/dts/rockchip/overlay/rockchip-uart4.dts | 20 + + .../boot/dts/rockchip/overlay/rockchip-w1-gpio.dts | 20 + + arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4.dts | 1 + + arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4.dtsi | 99 + + arch/arm64/configs/baikal_minimal_defconfig | 4417 ++++++++++ + baikal_rk3399_defconfig | 8627 ++++++++++++++++++++ + drivers/clk/Makefile | 1 + + drivers/clk/baikal/Makefile | 1 + + drivers/clk/baikal/clk-baikal.c | 371 + + drivers/cpufreq/cpufreq-dt-platdev.c | 2 + + drivers/firmware/efi/libstub/arm64-stub.c | 62 +- + drivers/gpu/drm/Kconfig | 1 + + drivers/gpu/drm/Makefile | 1 + + drivers/gpu/drm/baikal/Kconfig | 15 + + drivers/gpu/drm/baikal/Makefile | 10 + + drivers/gpu/drm/baikal/baikal-hdmi.c | 119 + + drivers/gpu/drm/baikal/baikal_vdu_connector.c | 118 + + drivers/gpu/drm/baikal/baikal_vdu_crtc.c | 337 + + drivers/gpu/drm/baikal/baikal_vdu_debugfs.c | 87 + + drivers/gpu/drm/baikal/baikal_vdu_drm.h | 65 + + drivers/gpu/drm/baikal/baikal_vdu_drv.c | 363 + + drivers/gpu/drm/baikal/baikal_vdu_plane.c | 209 + + drivers/gpu/drm/baikal/baikal_vdu_regs.h | 139 + + drivers/gpu/drm/bridge/Kconfig | 7 + + .../gpu/drm/bridge/synopsys/dw-hdmi-ahb-audio.c | 106 +- + drivers/gpu/drm/bridge/synopsys/dw-hdmi-audio.h | 1 + + drivers/gpu/drm/bridge/synopsys/dw-hdmi.c | 6 + + drivers/gpu/drm/panel/Makefile | 1 + + drivers/gpu/drm/panel/panel-simple-dsi.c | 739 ++ + drivers/gpu/drm/panfrost/panfrost_devfreq.c | 4 + + drivers/gpu/drm/panfrost/panfrost_job.c | 2 + + drivers/gpu/drm/panfrost/panfrost_mmu.c | 8 +- + drivers/hwmon/Kconfig | 7 +- + drivers/hwmon/bt1-pvt.c | 139 +- + drivers/hwmon/bt1-pvt.h | 8 + + drivers/i2c/busses/Kconfig | 2 +- + drivers/input/serio/Kconfig | 10 + + drivers/input/serio/Makefile | 1 + + drivers/input/serio/tp_serio.c | 749 ++ + drivers/misc/Kconfig | 18 + + drivers/misc/Makefile | 1 + + drivers/misc/tp_bmc.c | 747 ++ + drivers/net/ethernet/stmicro/stmmac/Kconfig | 10 + + drivers/net/ethernet/stmicro/stmmac/Makefile | 1 + + drivers/net/ethernet/stmicro/stmmac/dwmac-baikal.c | 230 + + .../net/ethernet/stmicro/stmmac/dwmac1000_core.c | 1 + + .../net/ethernet/stmicro/stmmac/dwmac1000_dma.c | 45 +- + .../net/ethernet/stmicro/stmmac/dwmac1000_dma.h | 26 + + drivers/net/ethernet/stmicro/stmmac/dwmac_lib.c | 8 + + drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c | 68 +- + drivers/net/phy/phy_device.c | 41 +- + drivers/of/Kconfig | 7 + + drivers/of/Makefile | 1 + + drivers/of/configfs.c | 290 + + drivers/rtc/rtc-efi.c | 9 + + drivers/tty/serial/8250/8250_dw.c | 7 +- + drivers/usb/dwc3/dwc3-of-simple.c | 1 + + kernel/power/suspend.c | 12 + + scripts/Makefile.dtbinst | 14 +- + scripts/Makefile.lib | 23 + + sound/soc/codecs/es8316.c | 2 +- + sound/soc/dwc/dwc-i2s.c | 36 +- + sound/soc/dwc/local.h | 1 + + 87 files changed, 21462 insertions(+), 127 deletions(-) + +diff --git a/Documentation/devicetree/configfs-overlays.txt b/Documentation/devicetree/configfs-overlays.txt +new file mode 100644 +index 000000000000..5fa43e064307 +--- /dev/null ++++ b/Documentation/devicetree/configfs-overlays.txt +@@ -0,0 +1,31 @@ ++Howto use the configfs overlay interface. ++ ++A device-tree configfs entry is created in /config/device-tree/overlays ++and and it is manipulated using standard file system I/O. ++Note that this is a debug level interface, for use by developers and ++not necessarily something accessed by normal users due to the ++security implications of having direct access to the kernel's device tree. ++ ++* To create an overlay you mkdir the directory: ++ ++ # mkdir /config/device-tree/overlays/foo ++ ++* Either you echo the overlay firmware file to the path property file. ++ ++ # echo foo.dtbo >/config/device-tree/overlays/foo/path ++ ++* Or you cat the contents of the overlay to the dtbo file ++ ++ # cat foo.dtbo >/config/device-tree/overlays/foo/dtbo ++ ++The overlay file will be applied, and devices will be created/destroyed ++as required. ++ ++To remove it simply rmdir the directory. ++ ++ # rmdir /config/device-tree/overlays/foo ++ ++The rationalle of the dual interface (firmware & direct copy) is that each is ++better suited to different use patterns. The firmware interface is what's ++intended to be used by hardware managers in the kernel, while the copy interface ++make sense for developers (since it avoids problems with namespaces). +diff --git a/arch/arm/boot/.gitignore b/arch/arm/boot/.gitignore +index 8c759326baf4..e6ce8f6ad4b1 100644 +--- a/arch/arm/boot/.gitignore ++++ b/arch/arm/boot/.gitignore +@@ -4,3 +4,5 @@ zImage + xipImage + bootpImage + uImage ++*.dtb* ++*.scr +diff --git a/arch/arm64/Kconfig.platforms b/arch/arm64/Kconfig.platforms +index b0ce18d4cc98..6dde0395d80a 100644 +--- a/arch/arm64/Kconfig.platforms ++++ b/arch/arm64/Kconfig.platforms +@@ -34,6 +34,19 @@ config ARCH_APPLE + This enables support for Apple's in-house ARM SoC family, starting + with the Apple M1. + ++config ARCH_BAIKAL ++ bool "Baikal Electronics Baikal-M SOC Family" ++ select GPIOLIB ++ select PINCTRL ++ select OF_GPIO ++ select GPIO_SYSFS ++ select GPIO_DWAPB ++ select GPIO_GENERIC ++ select DW_APB_TIMER ++ select DW_APB_TIMER_OF ++ help ++ This enables support for Baikal Electronics Baikal-M SOC Family ++ + config ARCH_BCM2835 + bool "Broadcom BCM2835 family" + select TIMER_OF +diff --git a/arch/arm64/boot/dts/Makefile b/arch/arm64/boot/dts/Makefile +index 639e01a4d855..2cec7300fef2 100644 +--- a/arch/arm64/boot/dts/Makefile ++++ b/arch/arm64/boot/dts/Makefile +@@ -8,6 +8,7 @@ subdir-y += amlogic + subdir-y += apm + subdir-y += apple + subdir-y += arm ++subdir-y += baikal + subdir-y += bitmain + subdir-y += broadcom + subdir-y += cavium +diff --git a/arch/arm64/boot/dts/baikal/Makefile b/arch/arm64/boot/dts/baikal/Makefile +new file mode 100644 +index 000000000000..9167daed9b33 +--- /dev/null ++++ b/arch/arm64/boot/dts/baikal/Makefile +@@ -0,0 +1,10 @@ ++# SPDX-License-Identifier: GPL-2.0 ++dtb-$(CONFIG_ARCH_BAIKAL) += bm-dbm.dtb ++dtb-$(CONFIG_ARCH_BAIKAL) += bm-mbm10.dtb ++dtb-$(CONFIG_ARCH_BAIKAL) += bm-mbm20.dtb ++dtb-$(CONFIG_ARCH_BAIKAL) += bm-mbm20-lvds.dtb ++dtb-$(CONFIG_ARCH_BAIKAL) += bm-qemu.dtb ++ ++always := $(dtb-y) ++subdir-y := $(dts-dirs) ++clean-files := *.dtb +diff --git a/arch/arm64/boot/dts/baikal/bm-dbm.dts b/arch/arm64/boot/dts/baikal/bm-dbm.dts +new file mode 100644 +index 000000000000..5a180bfda8be +--- /dev/null ++++ b/arch/arm64/boot/dts/baikal/bm-dbm.dts +@@ -0,0 +1,367 @@ ++// SPDX-License-Identifier: GPL-2.0 ++/* ++ * Device tree source for Baikal Electronics DBM board ++ * Copyright (C) 2019-2021 Baikal Electronics, JSC ++ */ ++ ++/dts-v1/; ++ ++#include ++#include "bm1000.dtsi" ++ ++/ { ++ model = "Baikal Electronics DBM"; ++ compatible = "baikal,baikal-m"; ++ #address-cells = <2>; ++ #size-cells = <2>; ++ ++ chosen { }; ++ ++ panel { ++ compatible = "panel-lvds"; ++ width-mm = <223>; ++ height-mm = <125>; ++ data-mapping = "vesa-24"; ++ panel-timing { ++ /* 1920x1080 @ 60 Hz */ ++ clock-frequency = <148500000>; ++ hactive = <1920>; ++ vactive = <1080>; ++ hsync-len = <44>; ++ hfront-porch = <88>; ++ hback-porch = <148>; ++ vsync-len = <5>; ++ vfront-porch = <4>; ++ vback-porch = <36>; ++ }; ++ port { ++ panel0_lvds0: endpoint@0 { ++ remote-endpoint = <&vdu_lvds0_pads>; ++ }; ++ panel0_lvds1: endpoint@1 { ++ remote-endpoint = <&vdu_lvds1_pads>; ++ }; ++ }; ++ }; ++ ++ buttons-backlight { ++ compatible = "gpio-keys"; ++ autorepeat; ++ button-brightness-down { ++ label = "Brightness Down Button"; ++ linux,code = ; ++ gpios = <&porta 18 GPIO_ACTIVE_LOW>; ++ debounce-interval = <50>; ++ }; ++ button-brightness-up { ++ label = "Brightness Up Button"; ++ linux,code = ; ++ gpios = <&porta 17 GPIO_ACTIVE_LOW>; ++ debounce-interval = <50>; ++ }; ++ button-brightness-toggle { ++ label = "Brightness Toggle Button"; ++ linux,code = ; ++ gpios = <&porta 31 GPIO_ACTIVE_LOW>; ++ debounce-interval = <50>; ++ }; ++ }; ++ ++ sound { ++ compatible = "baikal,snd_soc_be"; ++ baikal,cpu-dai = <&i2s>; ++ baikal,audio-codec = <&tlv320aic3x>; ++ }; ++}; ++ ++&ddr2 { ++ status = "okay"; ++}; ++ ++&espi0 { ++ cs-gpios = <&porta 28 1>; /* todo: get real gpio */ ++ status = "okay"; ++ ++ /* test device #0 */ ++ espi_test0 { ++ compatible = "rohm,dh2228fv"; /* same as spidev */ ++ reg = <0>; ++ spi-max-frequency = <12000000>; ++ status = "okay"; ++ }; ++}; ++ ++&gmac0 { ++ status = "okay"; ++ snps,reset-gp-out; ++ snps,reset-active-low; ++}; ++ ++&gmac1 { ++ status = "okay"; ++ snps,reset-gp-out; ++ snps,reset-active-low; ++}; ++ ++&gpio { ++ status = "okay"; ++}; ++ ++&gpu { ++ system-coherency = <0>; ++}; ++ ++&hda { ++ status = "okay"; ++}; ++ ++&hdmi { ++ status = "okay"; ++}; ++ ++&i2c0 { ++ status = "okay"; ++ ++ tlv320aic3x: tlv320aic3x@18 { ++ #sound-dai-cells = <0>; ++ compatible = "ti,tlv320aic3x"; ++ reg = <0x18>; ++ reset-gpios = <&porta 4 GPIO_ACTIVE_LOW>; ++ status = "okay"; ++ ai3x-micbias-vg = <1>; ++ ai3x-ocmv = <1>; ++ }; ++ ++ rtc@56 { ++ compatible = "abracon,abeoz9"; ++ reg = <0x56>; ++ }; ++}; ++ ++&i2c1 { ++ status = "okay"; ++}; ++ ++&i2s { ++ status = "okay"; ++ sound-dai = <&tlv320aic3x>; ++ system-clock-frequency = <12000000>; ++}; ++ ++&mmc0 { ++ status = "okay"; ++#if 0 ++ /* emmc */ ++ non-removable; ++ bus-width = <8>; ++ max-clock = <200000000>; ++#else ++ /* sd */ ++ disable-wp; ++ bus-width = <4>; ++ max-clock = <25000000>; ++#endif ++}; ++ ++&pcie0 { ++ status = "okay"; ++}; ++ ++&pcie1 { ++ status = "okay"; ++}; ++ ++&pcie2 { ++ status = "okay"; ++}; ++ ++&pcie_lcru { ++ status = "okay"; ++}; ++ ++&pvt0 { ++ status = "okay"; ++}; ++ ++&pvt1 { ++ status = "okay"; ++}; ++ ++&pvt2 { ++ status = "okay"; ++}; ++ ++&pvt3 { ++ status = "okay"; ++}; ++ ++&pvt_mali { ++ status = "okay"; ++}; ++ ++&sata0 { ++ status = "okay"; ++}; ++ ++&sata1 { ++ status = "okay"; ++}; ++ ++&smbus0 { ++ status = "okay"; ++}; ++ ++&smbus1 { ++ status = "okay"; ++}; ++ ++&spi0 { ++ num-cs = <4>; ++ cs-gpios = ++ <&porta 24 1>, /* ss0 xp8 - DD53 normal flash */ ++ <&porta 25 1>, /* ss1 xp9 */ ++ <&porta 26 1>, /* ss2 xp10 */ ++ <&porta 27 1>; /* ss3 xp11 */ ++ status = "okay"; ++ ++ /* SPI flash chip #1 */ ++ flash0: m25p80@0 { ++ compatible = "micron,n25q256a", "jedec,spi-nor"; ++ reg = <0>; ++ #address-cells = <1>; ++ #size-cells = <1>; ++ spi-max-frequency = <12500000>; ++ status = "okay"; ++ ++ /* Flash chip0 partitions */ ++ mtd0@0 { ++ label = "bl1"; ++ reg = <0x00000000 0x00040000>; ++ read-only; ++ }; ++ ++ mtd1@40000 { ++ label = "fip"; ++ reg = <0x00040000 0x007c0000>; ++ }; ++ ++ mtd2@800000 { ++ label = "rescue"; ++ reg = <0x00800000 0x01800000>; ++ }; ++ }; ++}; ++ ++#if 0 ++/* undefined */ ++&spi1 { ++ num-cs = <4>; ++ cs-gpios = ++ <&porta 20 1>, /* ss0 xp15 - DD57 boot flash */ ++ <&porta 21 1>, /* ss1 xp16 */ ++ <&porta 22 1>, /* ss2 xp17 */ ++ <&porta 23 1>; /* ss3 xp18 */ ++ status = "okay"; ++ ++ /* SPI flash chip #2 */ ++ flash0: m25p80@0 { ++ compatible = "micron,n25q256a", "jedec,spi-nor"; ++ reg = <0>; ++ #address-cells = <1>; ++ #size-cells = <1>; ++ spi-max-frequency = <12500000>; ++ status = "okay"; ++ ++ /* Flash chip1 partitions */ ++ mtd0@0 { ++ label = "fip_backup"; ++ reg = <0x00000000 0x00400000>; ++ read-only; ++ }; ++ ++ mtd1@400000 { ++ label = "env_backup"; ++ reg = <0x00400000 0x00100000>; ++ read-only; ++ }; ++ ++ mtd2@500000 { ++ label = "data1"; ++ reg = <0x00500000 0x01b00000>; ++ }; ++ }; ++}; ++#endif ++ ++&timer1 { ++ status = "okay"; ++}; ++ ++&timer2 { ++ status = "okay"; ++}; ++ ++&timer3 { ++ status = "okay"; ++}; ++ ++&timer4 { ++ status = "okay"; ++}; ++ ++&uart0 { ++ status = "okay"; ++}; ++ ++&uart1 { ++ status = "okay"; ++}; ++ ++&usb2 { ++ status = "okay"; ++}; ++ ++&usb3 { ++ status = "okay"; ++}; ++ ++&vdec { ++ status = "okay"; ++}; ++ ++&vdu0 { ++ status = "okay"; ++ enable-gpios = <&porta 16 GPIO_ACTIVE_LOW>; ++ backlight { ++ min-brightness-level = <10>; ++ default-brightness-level = <60>; ++ brightness-level-step = <2>; ++ pwm-frequency = <20000>; ++ }; ++ port { ++ vdu_lvds0_pads: endpoint@0 { ++ remote-endpoint = <&panel0_lvds0>; ++ }; ++ vdu_lvds1_pads: endpoint@1 { ++ remote-endpoint = <&panel0_lvds1>; ++ }; ++ /*vdu_lvds2_pads: endpoint@2 { ++ remote-endpoint = <&panel0_lvds2>; ++ }; ++ vdu_lvds3_pads: endpoint@3 { ++ remote-endpoint = <&panel0_lvds3>; ++ };*/ ++ }; ++}; ++ ++&vdu1 { ++ status = "okay"; ++}; ++ ++&xgmac0 { ++ status = "okay"; ++}; ++ ++&xgmac1 { ++ status = "okay"; ++}; +diff --git a/arch/arm64/boot/dts/baikal/bm-mbm.dtsi b/arch/arm64/boot/dts/baikal/bm-mbm.dtsi +new file mode 100644 +index 000000000000..3603db2a465b +--- /dev/null ++++ b/arch/arm64/boot/dts/baikal/bm-mbm.dtsi +@@ -0,0 +1,240 @@ ++// SPDX-License-Identifier: GPL-2.0 ++/* ++ * Device tree include file for MBM-compatible boards ++ * Copyright (C) 2021 Baikal Electronics, JSC ++ */ ++ ++#include "bm1000.dtsi" ++ ++/ { ++ model = "Baikal Electronics MBM"; ++ compatible = "baikal,baikal-m"; ++ #address-cells = <2>; ++ #size-cells = <2>; ++ ++ chosen { }; ++ ++ leds { ++ compatible = "gpio-leds"; ++ led0 { ++ gpios = <&porta 8 GPIO_ACTIVE_HIGH>; ++ default-state = "keep"; ++ }; ++ }; ++ ++ sound { ++ compatible = "simple-audio-card"; ++ simple-audio-card,name = "MITX-Sound-Card"; ++ simple-audio-card,bitclock-master = <&codec0>; ++ simple-audio-card,frame-master = <&codec0>; ++ simple-audio-card,widgets = ++ "Microphone", "Mic Jack", ++ "Headphone", "Headphones", ++ "Speaker", "AUX Out", ++ "Line", "Line In"; ++ simple-audio-card,routing = ++ "Headphones", "RHP", ++ "Headphones", "LHP", ++ "AUX Out", "AUXOUT1", ++ "AUX Out", "AUXOUT2", ++ "L2", "Mic Jack", ++ "R2", "Mic Jack", ++ "LAUX", "Line In", ++ "RAUX", "Line In"; ++ simple-audio-card,mic-det-gpio = <&porta 26 GPIO_ACTIVE_LOW>; ++ simple-audio-card,format = "i2s"; ++ simple-audio-card,cpu { ++ sound-dai = <&i2s>; ++ }; ++ codec0: simple-audio-card,codec { ++ sound-dai = <&nau8822 0>; ++ }; ++ }; ++}; ++ ++&ddr2 { ++ status = "okay"; ++}; ++ ++&gpio { ++ status = "okay"; ++}; ++ ++&gpu { ++ system-coherency = <0>; ++}; ++ ++&hdmi { ++ status = "okay"; ++}; ++ ++&i2c0 { ++ status = "okay"; ++ ++ bmc@8 { ++ compatible = "tp,mitx2-bmc", "t-platforms,mitx2-bmc"; ++ reg = <0x08>; ++ }; ++ ++ nau8822: nau8822@1a { ++ compatible = "nuvoton,nau8822"; ++ #sound-dai-cells = <1>; ++ reg = <0x1a>; ++ }; ++ ++ gpio@50 { ++ compatible = "nxp,pca9670"; ++ #gpio-cells = <2>; ++ gpio-controller; ++ reg = <0x50>; ++ }; ++ ++ rtc@51 { ++ compatible = "nxp,pcf2129", "nxp,pcf2127"; ++ reg = <0x51>; ++ }; ++ ++ hwmon@52 { ++ compatible = "tp,bm_mitx_hwmon"; ++ reg = <0x52>; ++ }; ++ ++ eeprom@53 { ++ compatible = "atmel,24c32"; ++ pagesize = <32>; ++ reg = <0x53>; ++ }; ++ ++ ps2port@54 { ++ compatible = "tp,tp_serio"; ++ reg = <0x54>; ++ interrupt-parent = <&porta>; ++ interrupts = <14 8>; ++ }; ++}; ++ ++&i2c1 { ++ status = "okay"; ++}; ++ ++&i2s { ++ status = "okay"; ++ system-clock-frequency = <12000000>; ++ #sound-dai-cells = <0>; ++}; ++ ++&mdio0 { ++ status = "disabled"; ++}; ++ ++&mmc0 { ++ status = "okay"; ++ disable-wp; ++ bus-width = <4>; ++ max-clock = <25000000>; ++}; ++ ++&pcie0 { ++ status = "okay"; ++ reset-gpios = <&porta 6 GPIO_ACTIVE_LOW>; ++}; ++ ++&pcie2 { ++ status = "okay"; ++ reset-gpios = <&porta 3 GPIO_ACTIVE_LOW>; ++}; ++ ++&pcie_lcru { ++ status = "okay"; ++}; ++ ++&porta { ++ pcieclk { ++ gpio-hog; ++ gpios = <1 GPIO_ACTIVE_LOW>; ++ output-high; ++ line-name = "pcie-x8-clock"; ++ }; ++}; ++ ++&pvt0 { ++ status = "okay"; ++}; ++ ++&pvt1 { ++ status = "okay"; ++}; ++ ++&pvt2 { ++ status = "okay"; ++}; ++ ++&pvt3 { ++ status = "okay"; ++}; ++ ++&pvt_mali { ++ status = "okay"; ++}; ++ ++&sata0 { ++ status = "okay"; ++}; ++ ++&sata1 { ++ status = "okay"; ++}; ++ ++&smbus0 { ++ status = "okay"; ++}; ++ ++&smbus1 { ++ status = "okay"; ++}; ++ ++&spi0 { ++ num-cs = <4>; ++ cs-gpios = <0>; ++ status = "okay"; ++}; ++ ++&timer1 { ++ status = "okay"; ++}; ++ ++&timer2 { ++ status = "okay"; ++}; ++ ++&timer3 { ++ status = "okay"; ++}; ++ ++&timer4 { ++ status = "okay"; ++}; ++ ++&uart0 { ++ status = "okay"; ++}; ++ ++&uart1 { ++ status = "okay"; ++}; ++ ++&usb2 { ++ status = "okay"; ++}; ++ ++&usb3 { ++ status = "okay"; ++}; ++ ++&vdec { ++ status = "okay"; ++}; ++ ++&vdu1 { ++ status = "okay"; ++}; +diff --git a/arch/arm64/boot/dts/baikal/bm-mbm10.dts b/arch/arm64/boot/dts/baikal/bm-mbm10.dts +new file mode 100644 +index 000000000000..8e02d3e08f3e +--- /dev/null ++++ b/arch/arm64/boot/dts/baikal/bm-mbm10.dts +@@ -0,0 +1,30 @@ ++// SPDX-License-Identifier: GPL-2.0 ++/* ++ * Device tree source for MBM 1.0 compatible boards: ++ * - TP-TF307-MB-A0 Rev.1.0 (BM1BM1-A) ++ * - TF307-MB-S-C Rev.3.0 ++ * ++ * Copyright (C) 2021 Baikal Electronics, JSC ++ */ ++ ++/dts-v1/; ++ ++#include "bm-mbm.dtsi" ++ ++/ { ++ sound { ++ simple-audio-card,hp-det-gpio = <&porta 27 GPIO_ACTIVE_HIGH>; ++ }; ++}; ++ ++&gmac0 { ++ status = "okay"; ++ snps,reset-gp-out; ++ snps,reset-active-low; ++}; ++ ++&gmac1 { ++ status = "okay"; ++ snps,reset-gp-out; ++ snps,reset-active-low; ++}; +diff --git a/arch/arm64/boot/dts/baikal/bm-mbm20-lvds.dts b/arch/arm64/boot/dts/baikal/bm-mbm20-lvds.dts +new file mode 100644 +index 000000000000..93e539104c42 +--- /dev/null ++++ b/arch/arm64/boot/dts/baikal/bm-mbm20-lvds.dts +@@ -0,0 +1,102 @@ ++// SPDX-License-Identifier: GPL-2.0 ++/* ++ * Device tree source for MBM 2.0 compatible boards: ++ * - TF307-MB-S-D Rev.4.0 (BM1BM1-D) ++ * ++ * Copyright (C) 2021 Baikal Electronics, JSC ++ */ ++ ++/dts-v1/; ++ ++#include ++#include "bm-mbm.dtsi" ++ ++/ { ++ panel { ++ /* In order to disable LVDS LCD panel, make sure that ++ status is "disabled" along with &vdu0 status (see below). */ ++ status = "okay"; ++ compatible = "panel-lvds"; ++ width-mm = <223>; ++ height-mm = <125>; ++ data-mapping = "vesa-24"; ++ panel-timing { ++ /* 1920x1080 @ 60 Hz */ ++ clock-frequency = <148500000>; ++ hactive = <1920>; ++ vactive = <1080>; ++ hsync-len = <44>; ++ hfront-porch = <88>; ++ hback-porch = <148>; ++ vsync-len = <5>; ++ vfront-porch = <4>; ++ vback-porch = <36>; ++ }; ++ port { ++ panel0_lvds0: endpoint@0 { ++ remote-endpoint = <&vdu_lvds0_pads>; ++ }; ++ panel0_lvds1: endpoint@1 { ++ remote-endpoint = <&vdu_lvds1_pads>; ++ }; ++ }; ++ }; ++ ++ buttons-backlight { ++ compatible = "gpio-keys"; ++ autorepeat; ++ button-brightness-down { ++ label = "Brightness Down Button"; ++ linux,code = ; ++ gpios = <&porta 18 GPIO_ACTIVE_LOW>; ++ debounce-interval = <50>; ++ }; ++ button-brightness-up { ++ label = "Brightness Up Button"; ++ linux,code = ; ++ gpios = <&porta 17 GPIO_ACTIVE_LOW>; ++ debounce-interval = <50>; ++ }; ++ button-brightness-toggle { ++ label = "Brightness Toggle Button"; ++ linux,code = ; ++ gpios = <&porta 31 GPIO_ACTIVE_LOW>; ++ debounce-interval = <50>; ++ }; ++ }; ++ ++ sound { ++ simple-audio-card,hp-det-gpio = <&porta 29 GPIO_ACTIVE_HIGH>; ++ }; ++}; ++ ++&gmac0 { ++ status = "okay"; ++ snps,reset-gpios = <&porta 19 GPIO_ACTIVE_LOW>; ++}; ++ ++&gmac1 { ++ status = "okay"; ++ snps,reset-gpios = <&porta 20 GPIO_ACTIVE_LOW>; ++}; ++ ++&vdu0 { ++ /* In order to disable LVDS LCD panel, make sure that ++ status is "disabled" along with panel status (see above). */ ++ status = "okay"; ++ enable-gpios = <&porta 16 GPIO_ACTIVE_HIGH>; ++ backlight { ++ min-brightness-level = <10>; ++ default-brightness-level = <60>; ++ brightness-level-step = <2>; ++ pwm-frequency = <20000>; ++ }; ++ port { ++ vdu_lvds0_pads: endpoint@0 { ++ remote-endpoint = <&panel0_lvds0>; ++ }; ++ vdu_lvds1_pads: endpoint@1 { ++ remote-endpoint = <&panel0_lvds1>; ++ }; ++ }; ++}; +diff --git a/arch/arm64/boot/dts/baikal/bm-mbm20.dts b/arch/arm64/boot/dts/baikal/bm-mbm20.dts +new file mode 100644 +index 000000000000..1c0a459a2781 +--- /dev/null ++++ b/arch/arm64/boot/dts/baikal/bm-mbm20.dts +@@ -0,0 +1,102 @@ ++// SPDX-License-Identifier: GPL-2.0 ++/* ++ * Device tree source for MBM 2.0 compatible boards: ++ * - TF307-MB-S-D Rev.4.0 (BM1BM1-D) ++ * ++ * Copyright (C) 2021 Baikal Electronics, JSC ++ */ ++ ++/dts-v1/; ++ ++#include ++#include "bm-mbm.dtsi" ++ ++/ { ++ panel { ++ /* In order to utilize LVDS LCD panel, make sure that ++ status is "okay" along with &vdu0 status (see below). */ ++ status = "disabled"; ++ compatible = "panel-lvds"; ++ width-mm = <223>; ++ height-mm = <125>; ++ data-mapping = "vesa-24"; ++ panel-timing { ++ /* 1920x1080 @ 60 Hz */ ++ clock-frequency = <148500000>; ++ hactive = <1920>; ++ vactive = <1080>; ++ hsync-len = <44>; ++ hfront-porch = <88>; ++ hback-porch = <148>; ++ vsync-len = <5>; ++ vfront-porch = <4>; ++ vback-porch = <36>; ++ }; ++ port { ++ panel0_lvds0: endpoint@0 { ++ remote-endpoint = <&vdu_lvds0_pads>; ++ }; ++ panel0_lvds1: endpoint@1 { ++ remote-endpoint = <&vdu_lvds1_pads>; ++ }; ++ }; ++ }; ++ ++ buttons-backlight { ++ compatible = "gpio-keys"; ++ autorepeat; ++ button-brightness-down { ++ label = "Brightness Down Button"; ++ linux,code = ; ++ gpios = <&porta 18 GPIO_ACTIVE_LOW>; ++ debounce-interval = <50>; ++ }; ++ button-brightness-up { ++ label = "Brightness Up Button"; ++ linux,code = ; ++ gpios = <&porta 17 GPIO_ACTIVE_LOW>; ++ debounce-interval = <50>; ++ }; ++ button-brightness-toggle { ++ label = "Brightness Toggle Button"; ++ linux,code = ; ++ gpios = <&porta 31 GPIO_ACTIVE_LOW>; ++ debounce-interval = <50>; ++ }; ++ }; ++ ++ sound { ++ simple-audio-card,hp-det-gpio = <&porta 29 GPIO_ACTIVE_HIGH>; ++ }; ++}; ++ ++&gmac0 { ++ status = "okay"; ++ snps,reset-gpios = <&porta 19 GPIO_ACTIVE_LOW>; ++}; ++ ++&gmac1 { ++ status = "okay"; ++ snps,reset-gpios = <&porta 20 GPIO_ACTIVE_LOW>; ++}; ++ ++&vdu0 { ++ /* In order to utilize LVDS LCD panel, make sure that ++ status is "okay" along with panel status (see above). */ ++ status = "disabled"; ++ enable-gpios = <&porta 16 GPIO_ACTIVE_LOW>; ++ backlight { ++ min-brightness-level = <10>; ++ default-brightness-level = <60>; ++ brightness-level-step = <2>; ++ pwm-frequency = <20000>; ++ }; ++ port { ++ vdu_lvds0_pads: endpoint@0 { ++ remote-endpoint = <&panel0_lvds0>; ++ }; ++ vdu_lvds1_pads: endpoint@1 { ++ remote-endpoint = <&panel0_lvds1>; ++ }; ++ }; ++}; +diff --git a/arch/arm64/boot/dts/baikal/bm-qemu.dts b/arch/arm64/boot/dts/baikal/bm-qemu.dts +new file mode 100644 +index 000000000000..c6350c0aaeb5 +--- /dev/null ++++ b/arch/arm64/boot/dts/baikal/bm-qemu.dts +@@ -0,0 +1,163 @@ ++// SPDX-License-Identifier: GPL-2.0 ++/* ++ * Device tree source for Baikal-M software emulator (QEMU) platform ++ * Copyright (C) 2018-2021 Baikal Electronics, JSC ++ */ ++ ++/dts-v1/; ++ ++#include "bm1000.dtsi" ++ ++/* ++ * Device "flash@0" was added to allow UEFI to boot on emulator. ++ * TODO: the tree should be replaced by actual Baikal-M component tree ++ */ ++ ++/ { ++ model = "Baikal Electronics Baikal-M virtual platform"; ++ compatible = "baikal,baikal-m"; ++ #address-cells = <2>; ++ #size-cells = <2>; ++ ++ chosen { ++ stdout-path = "serial0:115200n8"; ++ bootargs = "root=/dev/ram rw rootwait console=ttyS0,115200n8 earlyprintk=uart8250,mmio32,0x20230000,115200"; ++ }; ++ ++ memory@80000000 { ++ device_type = "memory"; ++ /* 16GB */ ++ reg = <0x00000000 0x80000000 0x0 0x80000000 ++ 0x00000008 0x80000000 0x1 0x80000000>; ++ }; ++ ++ /* XXX: Temporary fix for qemu to work */ ++ /* Device is necessary for UEFI to boot on QEMU, need to replace it with something later */ ++ flash@0 { ++ compatible = "cfi-flash"; ++ reg = <0x0 0x4000000 0x0 0x4000000>; ++ bank-width = <0x4>; ++ }; ++ ++ panel: panel { ++ compatible = "auo,b133htn01"; /* 1920x1080 */ ++ /*compatible = "auo,b133xtn01; /* 1366x768 */ ++ /*compatible = "auo,b101aw03"; /* 1024x600 */ ++ /*compatible = "innolux,g121x1-l03"; /* 1024x768 */ ++ /*compatible = "auo,b101ean01"; /* 1280x800 */ ++ ++ port { ++ lcd_panel: endpoint { ++ remote-endpoint = <&vdu_pads>; ++ }; ++ }; ++ }; ++ ++ /*panel_hdmi: panel { ++ compatible = "edt,et057090dhu"; ++ ++ port { ++ lcd_hdmi_panel: endpoint { ++ remote-endpoint = <&vdu_hdmi_pads>; ++ }; ++ }; ++ };*/ ++}; ++ ++&gmac0 { ++ status = "okay"; ++}; ++ ++&gmac1 { ++ status = "okay"; ++}; ++ ++&sata0 { ++ status = "okay"; ++}; ++ ++&sata1 { ++ status = "okay"; ++}; ++ ++&spi0 { ++ num-cs = <6>; ++ status = "okay"; ++ ++ /* SPI flash chip #1 */ ++ flash0: m25p80@0 { ++ compatible = "micron,n25q256a", "jedec,spi-nor"; ++ reg = <0>; ++ #address-cells = <1>; ++ #size-cells = <1>; ++ spi-max-frequency = <50000000>; ++ status = "okay"; ++ ++ /* Flash chip0 partitions */ ++ mtd0@0 { ++ label = "fip"; ++ reg = <0x00000000 0x00400000>; ++ read-only; ++ }; ++ ++ mtd1@400000 { ++ label = "env"; ++ reg = <0x00400000 0x00100000>; ++ }; ++ ++ mtd2@500000 { ++ label = "kernel"; ++ reg = <0x00500000 0x00400000>; ++ }; ++ ++ mtd3@900000 { ++ label = "rootfs"; ++ reg = <0x00900000 0x00800000>; ++ }; ++ ++ mtd4@1100000 { ++ label = "data0"; ++ reg = <0x01100000 0x00f00000>; ++ }; ++ }; ++ ++ /* SPI flash chip #2 */ ++ flash1: m25p80@1 { ++ compatible = "micron,n25q256a", "jedec,spi-nor"; ++ reg = <1>; ++ #address-cells = <1>; ++ #size-cells = <1>; ++ spi-max-frequency = <50000000>; ++ status = "okay"; ++ ++ /* Flash chip1 partitions */ ++ mtd0@0 { ++ label = "fip_backup"; ++ reg = <0x00000000 0x00400000>; ++ read-only; ++ }; ++ ++ mtd1@400000 { ++ label = "env_backup"; ++ reg = <0x00400000 0x00100000>; ++ read-only; ++ }; ++ ++ mtd2@500000 { ++ label = "data1"; ++ reg = <0x00500000 0x01b00000>; ++ }; ++ }; ++}; ++ ++&uart0 { ++ status = "okay"; ++}; ++ ++&vdu0 { ++ port { ++ vdu_pads: endpoint { ++ remote-endpoint = <&lcd_panel>; ++ }; ++ }; ++}; +diff --git a/arch/arm64/boot/dts/baikal/bm1000-clocks.dtsi b/arch/arm64/boot/dts/baikal/bm1000-clocks.dtsi +new file mode 100644 +index 000000000000..0a5579d3694b +--- /dev/null ++++ b/arch/arm64/boot/dts/baikal/bm1000-clocks.dtsi +@@ -0,0 +1,363 @@ ++// SPDX-License-Identifier: GPL-2.0 ++/* ++ * Device tree include file for BE-M1000 SoC clocks ++ * Copyright (C) 2017-2021 Baikal Electronics, JSC ++ */ ++ ++/ { ++ /* external oscillator */ ++ osc25: oscillator25 { ++ compatible = "fixed-clock"; ++ #clock-cells = <0>; ++ clock-frequency = <25000000>; ++ clock-output-names = "osc25"; ++ }; ++ ++ /* external oscillator */ ++ osc27: oscillator27 { ++ compatible = "fixed-clock"; ++ #clock-cells = <0>; ++ clock-frequency = <27000000>; ++ clock-output-names = "osc27"; ++ }; ++ ++ cmu_cluster0: cmu_cluster0 { ++ compatible = "baikal,cmu"; ++ clock-output-names = "baikal-ca57_cmu0"; ++ #clock-cells = <0>; ++ clocks = <&osc25>; ++ cmu-id = <0x28000000>; ++ max = <1500000000>; ++ min = <500000000>; ++ clock-frequency = <1500000000>; ++ }; ++ ++ cmu_cluster1: cmu_cluster1 { ++ compatible = "baikal,cmu"; ++ clock-output-names = "baikal-ca57_cmu1"; ++ #clock-cells = <0>; ++ clocks = <&osc25>; ++ cmu-id = <0xc000000>; ++ max = <1500000000>; ++ min = <500000000>; ++ clock-frequency = <1500000000>; ++ }; ++ ++ cmu_cluster2: cmu_cluster2 { ++ compatible = "baikal,cmu"; ++ clock-output-names = "baikal-ca57_cmu2"; ++ #clock-cells = <0>; ++ clocks = <&osc25>; ++ cmu-id = <0xa000000>; ++ max = <1500000000>; ++ min = <500000000>; ++ clock-frequency = <1500000000>; ++ }; ++ ++ cmu_cluster3: cmu_cluster3 { ++ compatible = "baikal,cmu"; ++ clock-output-names = "baikal-ca57_cmu3"; ++ #clock-cells = <0>; ++ clocks = <&osc25>; ++ cmu-id = <0x26000000>; ++ max = <1500000000>; ++ min = <500000000>; ++ clock-frequency = <1500000000>; ++ }; ++ ++ cmu0_avlsp: cmu0_avlsp { ++ compatible = "baikal,cmu"; ++ #clock-cells = <1>; ++ clock-output-names = "baikal-avlsp_cmu0"; ++ clock-names = ++ "gpio", // <0> ++ "uart1", // <1> ++ "uart2", // <2> ++ "apb", // <3> ++ "spi", // <4> ++ "espi", // <5> ++ "i2c1", // <6> ++ "i2c2", // <7> ++ "timer1", // <8> ++ "timer2", // <9> ++ "timer3", // <10> ++ "timer4", // <11> ++ "dmac", // <12> ++ "smbus1", // <13> ++ "smbus2", // <14> ++ "hda_sys_clk", // <15> ++ "hda_clk48", // <16> ++ "mshc_axi", // <17> ++ "mshc_ahb", // <18> ++ "mshc_tx_x2", // <19> ++ "mshc_b", // <20> ++ "mshc_tm", // <21> ++ "mshc_cqetm", // <22> ++ "hwa_clu", // <23> ++ "hwa_clu_hf", // <24> ++ "hwa_axi", // <25> ++ "vdu_axi", // <26> ++ "smmu"; // <27> ++ clock-indices = ++ <0>, <1>, <2>, <3>, <4>, <5>, <6>, <7>, <8>, <9>, <10>, ++ <11>, <12>, <13>, <14>, <15>, <16>, <17>, <18>, <19>, ++ <20>, <21>, <22>, <23>, <24>, <25>, <26>, <27>; ++ clocks = <&osc25>; ++ cmu-id = <0x20000000>; ++ max = <2100000000>; ++ min = <800000>; ++ clock-frequency = <1200000000>; ++ }; ++ ++ cmu1_avlsp: cmu1_avlsp { ++ compatible = "baikal,cmu"; ++ clock-output-names = "baikal-avlsp_cmu1"; ++ #clock-cells = <0>; ++ clocks = <&osc27>; ++ cmu-id = <0x20010000>; ++ max = <2100000000>; ++ min = <13500000>; ++ clock-frequency = <1039500000>; ++ }; ++ ++ cmu_mali: cmu_mali { ++ compatible = "baikal,cmu"; ++ clock-output-names = "baikal-mali-cmu"; ++ #clock-cells = <0>; ++ clocks = <&osc25>; ++ clock-names = "aclk"; ++ cmu-id = <0x2a000000>; ++ max = <800000000>; ++ min = <400000000>; ++ clock-frequency = <750000000>; ++ }; ++ ++ cmu0_xgbe: cmu0_xgbe { ++ compatible = "baikal,cmu"; ++ clock-output-names = "baikal-xgbe-cmu0"; ++ #clock-cells = <1>; ++ clocks = <&osc25>; ++ clock-names = "csr50mhz", "gmac0_tx2", "gmac1_tx2", "hdmi_aclk", "isfr"; ++ clock-indices = <0>, <10>, <13>, <15>, <17>; ++ cmu-id = <0x30000000>; ++ max = <1250000000>; ++ min = <50000000>; ++ clock-frequency = <1250000000>; ++ }; ++ ++ cmu1_xgbe: cmu1_xgbe { ++ compatible = "baikal,cmu"; ++ clock-output-names = "baikal-xgbe-cmu1"; ++ #clock-cells = <1>; ++ clocks = <&osc27>; ++ clock-indices = <0>; ++ clock-names = "pixelclk"; ++ cmu-id = <0x30010000>; ++ max = <600000000>; ++ min = <13500000>; ++ clock-frequency = <25250000>; ++ }; ++ ++ clocks { ++ cpu_clk: cpu_clk { ++ compatible = "fixed-clock"; ++ #clock-cells = <0>; ++ clock-frequency = <1500000000>; ++ clock-output-names = "cpuclk"; ++ }; ++ ++ apb_clk: apb_clk { ++ compatible = "fixed-clock"; ++ #clock-cells = <0>; ++ clock-frequency = <200000000>; ++ clock-output-names = "apb_pclk"; ++ }; ++ ++ uart_clk: uart_clk { ++ compatible = "fixed-clock"; ++ #clock-cells = <0>; ++ clock-frequency = <7273800>; ++ clock-output-names = "soc_uartclk"; ++ }; ++ ++ i2c_clk: i2c_clk { ++ compatible = "fixed-clock"; ++ #clock-cells = <0>; ++ clock-frequency = <100000000>; ++ clock-output-names = "soc_i2cclk"; ++ }; ++ ++ smbus_clk: smbus_clk { ++ compatible = "fixed-clock"; ++ #clock-cells = <0>; ++ clock-frequency = <50000000>; ++ clock-output-names = "soc_smbusclk"; ++ }; ++ ++ timer1_clk: timer1_clk { ++ compatible = "fixed-clock"; ++ #clock-cells = <0>; ++ clock-frequency = <50000000>; ++ clock-output-names = "soc_timer1clk"; ++ }; ++ ++ timer2_clk: timer2_clk { ++ compatible = "fixed-clock"; ++ #clock-cells = <0>; ++ clock-frequency = <50000000>; ++ clock-output-names = "soc_timer2clk"; ++ }; ++ ++ timer3_clk: timer3_clk { ++ compatible = "fixed-clock"; ++ #clock-cells = <0>; ++ clock-frequency = <50000000>; ++ clock-output-names = "soc_timer3clk"; ++ }; ++ ++ timer4_clk: timer4_clk { ++ compatible = "fixed-clock"; ++ #clock-cells = <0>; ++ clock-frequency = <50000000>; ++ clock-output-names = "soc_timer4clk"; ++ }; ++ ++ gpio_clk: gpio_clk { ++ compatible = "fixed-clock"; ++ #clock-cells = <0>; ++ clock-frequency = <1000000>; ++ clock-output-names = "soc_gpioclk"; ++ }; ++ ++ spi_clk: spi_clk { ++ compatible = "fixed-clock"; ++ #clock-cells = <0>; ++ clock-frequency = <50000000>; ++ clock-output-names = "soc_spiclk"; ++ }; ++ ++ soc_ethclk: ethclk { ++ compatible = "fixed-clock"; ++ #clock-cells = <0>; ++ clock-frequency = <50000000>; ++ clock-output-names = "eth_clk"; ++ }; ++ ++ soc_xgbeclk: xgbeclk { ++ compatible = "fixed-clock"; ++ #clock-cells = <0>; ++ clock-frequency = <156250000>; ++ clock-output-names = "xgbe_clk"; ++ }; ++ ++ soc_smc50mhz: clk50mhz { ++ compatible = "fixed-clock"; ++ #clock-cells = <0>; ++ clock-frequency = <50000000>; ++ clock-output-names = "smc_clk"; ++ }; ++ ++ soc_faxiclk: refclk400mhz { ++ compatible = "fixed-clock"; ++ #clock-cells = <0>; ++ clock-frequency = <400000000>; ++ clock-output-names = "faxi_clk"; ++ }; ++ ++ soc_tmp_clk: refclkXXXmhz { ++ compatible = "fixed-clock"; ++ #clock-cells = <0>; ++ clock-frequency = <100000000>; ++ clock-output-names = "tmpclk"; ++ }; ++ ++ gpu_clk: gpu_clk { ++ compatible = "fixed-clock"; ++ #clock-cells = <0>; ++ clock-frequency = <750000000>; ++ clock-output-names = "gpuclk"; ++ }; ++ gpu_opp_table: opp_table_gpu { ++ compatible = "operating-points-v2", "operating-points-v2-mali"; ++ ++ opp@400000000 { ++ opp-hz = /bits/ 64 <400000000>; ++ clock-latency-ns = <10000000>; ++ }; ++ opp@450000000 { ++ opp-hz = /bits/ 64 <450000000>; ++ clock-latency-ns = <10000000>; ++ }; ++ opp@500000000 { ++ opp-hz = /bits/ 64 <500000000>; ++ clock-latency-ns = <10000000>; ++ }; ++ opp@550000000 { ++ opp-hz = /bits/ 64 <550000000>; ++ clock-latency-ns = <10000000>; ++ }; ++ opp@600000000 { ++ opp-hz = /bits/ 64 <600000000>; ++ clock-latency-ns = <10000000>; ++ }; ++ opp@650000000 { ++ opp-hz = /bits/ 64 <650000000>; ++ clock-latency-ns = <10000000>; ++ }; ++ opp@700000000 { ++ opp-hz = /bits/ 64 <700000000>; ++ clock-latency-ns = <10000000>; ++ }; ++ opp@750000000 { ++ opp-hz = /bits/ 64 <750000000>; ++ clock-latency-ns = <10000000>; ++ }; ++ }; ++ ++ clk_ahb: clk_ahb { ++ compatible = "fixed-clock"; ++ #clock-cells = <0>; ++ clock-frequency = <100000000>; ++ clock-output-names = "clk_ahb"; ++ }; ++ ++ clk_xin: clk_xin { ++ compatible = "fixed-clock"; ++ #clock-cells = <0>; ++ clock-frequency = <100000000>; ++ clock-output-names = "clk_xin"; ++ }; ++ ++ cortex_cmu: cmu@cortex { ++ compatible = "baikal,cmu-device-clock"; ++ #clock-cells = <1>; ++ clock-frequency = <1000000000>; ++ clock-output-names = "baikal-cmu"; ++ }; ++ ++ avlsp_cmu1: cmu1@avlsp { ++ compatible = "baikal,cmu-device-clock"; ++ #clock-cells = <1>; ++ clock-indices = <26>; ++ clock-frequency = <240000000>; ++ clock-output-names = "baikal-cmu"; ++ }; ++ ++ usb_clk: usb_clk@1f04d074 { ++ #clock-cells = <0>; ++ compatible = "fixed-clock"; ++ clock-names = "usbclk"; ++ clock-frequency = <500000000>; ++ clock-output-names = "usbclk"; ++ }; ++ ++ cmu1_avlsp_div7: cmu1_avlsp_div7 { ++ compatible = "allwinner,sun4i-a10-pll3-2x-clk", "fixed-factor-clock"; ++ clocks = <&cmu1_avlsp>; ++ #clock-cells = <0>; ++ clock-div = <7>; ++ clock-mult = <1>; ++ clock-output-names = "lvds_clk"; ++ }; ++ }; ++}; +diff --git a/arch/arm64/boot/dts/baikal/bm1000-cpufreq.dtsi b/arch/arm64/boot/dts/baikal/bm1000-cpufreq.dtsi +new file mode 100644 +index 000000000000..76fee58d8bfc +--- /dev/null ++++ b/arch/arm64/boot/dts/baikal/bm1000-cpufreq.dtsi +@@ -0,0 +1,249 @@ ++// SPDX-License-Identifier: GPL-2.0 ++/* ++ * Device tree include file for BE-M1000 SoC CPU frequencies ++ * Copyright (C) 2020-2021 Baikal Electronics, JSC ++ */ ++ ++/ { ++ cpufreq { ++ cluster0_opp: opp_table0 { ++ compatible = "operating-points-v2"; ++ opp-shared; ++ ++ opp@1500 { ++ opp-hz = /bits/ 64 <1500000000>; ++ clock-latency-ns = <10000000>; ++ }; ++ ++ opp@1400 { ++ opp-hz = /bits/ 64 <1400000000>; ++ clock-latency-ns = <10000000>; ++ }; ++ ++ opp@1300 { ++ opp-hz = /bits/ 64 <1300000000>; ++ clock-latency-ns = <10000000>; ++ }; ++ ++ opp@1200 { ++ opp-hz = /bits/ 64 <1200000000>; ++ clock-latency-ns = <10000000>; ++ }; ++ ++ opp@1100 { ++ opp-hz = /bits/ 64 <1100000000>; ++ clock-latency-ns = <10000000>; ++ }; ++ ++ opp@1000 { ++ opp-hz = /bits/ 64 <1000000000>; ++ clock-latency-ns = <10000000>; ++ }; ++ ++ opp@900 { ++ opp-hz = /bits/ 64 <900000000>; ++ clock-latency-ns = <10000000>; ++ }; ++ ++ opp@800 { ++ opp-hz = /bits/ 64 <800000000>; ++ clock-latency-ns = <10000000>; ++ }; ++ ++ opp@700 { ++ opp-hz = /bits/ 64 <700000000>; ++ clock-latency-ns = <10000000>; ++ }; ++ ++ opp@600 { ++ opp-hz = /bits/ 64 <600000000>; ++ clock-latency-ns = <10000000>; ++ }; ++ ++ opp@500 { ++ opp-hz = /bits/ 64 <500000000>; ++ clock-latency-ns = <10000000>; ++ }; ++ }; ++ ++ cluster1_opp: opp_table1 { ++ compatible = "operating-points-v2"; ++ opp-shared; ++ ++ opp@1500 { ++ opp-hz = /bits/ 64 <1500000000>; ++ clock-latency-ns = <10000000>; ++ }; ++ ++ opp@1400 { ++ opp-hz = /bits/ 64 <1400000000>; ++ clock-latency-ns = <10000000>; ++ }; ++ ++ opp@1300 { ++ opp-hz = /bits/ 64 <1300000000>; ++ clock-latency-ns = <10000000>; ++ }; ++ ++ opp@1200 { ++ opp-hz = /bits/ 64 <1200000000>; ++ clock-latency-ns = <10000000>; ++ }; ++ ++ opp@1100 { ++ opp-hz = /bits/ 64 <1100000000>; ++ clock-latency-ns = <10000000>; ++ }; ++ ++ opp@1000 { ++ opp-hz = /bits/ 64 <1000000000>; ++ clock-latency-ns = <10000000>; ++ }; ++ ++ opp@900 { ++ opp-hz = /bits/ 64 <900000000>; ++ clock-latency-ns = <10000000>; ++ }; ++ ++ opp@800 { ++ opp-hz = /bits/ 64 <800000000>; ++ clock-latency-ns = <10000000>; ++ }; ++ ++ opp@700 { ++ opp-hz = /bits/ 64 <700000000>; ++ clock-latency-ns = <10000000>; ++ }; ++ ++ opp@600 { ++ opp-hz = /bits/ 64 <600000000>; ++ clock-latency-ns = <10000000>; ++ }; ++ ++ opp@500 { ++ opp-hz = /bits/ 64 <500000000>; ++ clock-latency-ns = <10000000>; ++ }; ++ }; ++ ++ cluster2_opp: opp_table2 { ++ compatible = "operating-points-v2"; ++ opp-shared; ++ ++ opp@1500 { ++ opp-hz = /bits/ 64 <1500000000>; ++ clock-latency-ns = <10000000>; ++ }; ++ ++ opp@1400 { ++ opp-hz = /bits/ 64 <1400000000>; ++ clock-latency-ns = <10000000>; ++ }; ++ ++ opp@1300 { ++ opp-hz = /bits/ 64 <1300000000>; ++ clock-latency-ns = <10000000>; ++ }; ++ ++ opp@1200 { ++ opp-hz = /bits/ 64 <1200000000>; ++ clock-latency-ns = <10000000>; ++ }; ++ ++ opp@1100 { ++ opp-hz = /bits/ 64 <1100000000>; ++ clock-latency-ns = <10000000>; ++ }; ++ ++ opp@1000 { ++ opp-hz = /bits/ 64 <1000000000>; ++ clock-latency-ns = <10000000>; ++ }; ++ ++ opp@900 { ++ opp-hz = /bits/ 64 <900000000>; ++ clock-latency-ns = <10000000>; ++ }; ++ ++ opp@800 { ++ opp-hz = /bits/ 64 <800000000>; ++ clock-latency-ns = <10000000>; ++ }; ++ ++ opp@700 { ++ opp-hz = /bits/ 64 <700000000>; ++ clock-latency-ns = <10000000>; ++ }; ++ ++ opp@600 { ++ opp-hz = /bits/ 64 <600000000>; ++ clock-latency-ns = <10000000>; ++ }; ++ ++ opp@500 { ++ opp-hz = /bits/ 64 <500000000>; ++ clock-latency-ns = <10000000>; ++ }; ++ }; ++ ++ cluster3_opp: opp_table3 { ++ compatible = "operating-points-v2"; ++ opp-shared; ++ ++ opp@1500 { ++ opp-hz = /bits/ 64 <1500000000>; ++ clock-latency-ns = <10000000>; ++ }; ++ ++ opp@1400 { ++ opp-hz = /bits/ 64 <1400000000>; ++ clock-latency-ns = <10000000>; ++ }; ++ ++ opp@1300 { ++ opp-hz = /bits/ 64 <1300000000>; ++ clock-latency-ns = <10000000>; ++ }; ++ ++ opp@1200 { ++ opp-hz = /bits/ 64 <1200000000>; ++ clock-latency-ns = <10000000>; ++ }; ++ ++ opp@1100 { ++ opp-hz = /bits/ 64 <1100000000>; ++ clock-latency-ns = <10000000>; ++ }; ++ ++ opp@1000 { ++ opp-hz = /bits/ 64 <1000000000>; ++ clock-latency-ns = <10000000>; ++ }; ++ ++ opp@900 { ++ opp-hz = /bits/ 64 <900000000>; ++ clock-latency-ns = <10000000>; ++ }; ++ ++ opp@800 { ++ opp-hz = /bits/ 64 <800000000>; ++ clock-latency-ns = <10000000>; ++ }; ++ ++ opp@700 { ++ opp-hz = /bits/ 64 <700000000>; ++ clock-latency-ns = <10000000>; ++ }; ++ ++ opp@600 { ++ opp-hz = /bits/ 64 <600000000>; ++ clock-latency-ns = <10000000>; ++ }; ++ ++ opp@500 { ++ opp-hz = /bits/ 64 <500000000>; ++ clock-latency-ns = <10000000>; ++ }; ++ }; ++ }; ++}; +diff --git a/arch/arm64/boot/dts/baikal/bm1000.dtsi b/arch/arm64/boot/dts/baikal/bm1000.dtsi +new file mode 100644 +index 000000000000..bc69835c4d4f +--- /dev/null ++++ b/arch/arm64/boot/dts/baikal/bm1000.dtsi +@@ -0,0 +1,1059 @@ ++// SPDX-License-Identifier: GPL-2.0 ++/* ++ * Device tree include file for BE-M1000 SoC ++ * Copyright (C) 2017-2021 Baikal Electronics, JSC ++ */ ++ ++#include "bm1000-clocks.dtsi" ++#include "bm1000-cpufreq.dtsi" ++#include ++#include ++ ++/* ++ * ARM GICv3 bindings assume interrupts (in each range) counting from 0: ++ * PPI: 0..15 ++ * SPI: 0..987 ++ * Baikal-M documentation ("Interrupt map") places all interrupts into the ++ * linear map: SGI(0..15), PPI(16..31), SPI(32-1019). ++ * So real interrupt IDs in this device tree must be calculated as follows: ++ * PPI_real = PPI_from_documentation - 16 ++ * SPI_real = SPI_from_documentation - 32 ++ */ ++ ++/ { ++ compatible = "baikal,arm", "baikal,baikal-m-soc", "simple-bus"; ++ #address-cells = <2>; ++ #size-cells = <2>; ++ interrupt-parent = <&gic>; ++ ++ aliases { ++ ethernet1 = &gmac0; ++ ethernet2 = &gmac1; ++ ethernet3 = &xgmac0; ++ ethernet4 = &xgmac1; ++ gic = &gic; ++ gpio = &gpio; ++ hda = &hda; ++ i2c0 = &i2c0; ++ i2c1 = &i2c1; ++ i2s = &i2s; ++ memory-controller1 = &ddr1; ++ memory-controller2 = &ddr2; ++ mmc0 = &mmc0; ++ pvt0 = &pvt0; ++ pvt1 = &pvt1; ++ pvt2 = &pvt2; ++ pvt3 = &pvt3; ++ pvt_mali = &pvt_mali; ++ sata0 = &sata0; ++ sata1 = &sata1; ++ serial0 = &uart0; ++ serial1 = &uart1; ++ smbus0 = &smbus0; ++ smbus1 = &smbus1; ++ spi = &spi0; ++ ssi0 = &spi0; ++ timer1 = &timer1; ++ timer2 = &timer2; ++ timer3 = &timer3; ++ timer4 = &timer4; ++ usb2 = &usb2; ++ usb3 = &usb3; ++ vdec = &vdec; ++ vdu_lvds = &vdu0; ++ }; ++ ++ psci { ++ compatible = "arm,psci-1.0", "arm,psci-0.2"; ++ method = "smc"; ++ }; ++ ++ cpus { ++ #address-cells = <2>; ++ #size-cells = <0>; ++ ++ /* Do not use 'cpu-map'. It leads to wrong topology. */ ++ ++ CPU0: cpu@0 { ++ device_type = "cpu"; ++ compatible = "arm,cortex-a57"; ++ reg = <0x0 0x0>; ++ enable-method = "psci"; ++ i-cache-size = <0xc000>; ++ i-cache-line-size = <64>; ++ i-cache-sets = <256>; ++ d-cache-size = <0x8000>; ++ d-cache-line-size = <64>; ++ d-cache-sets = <256>; ++ clocks = <&cmu_cluster0>; ++ next-level-cache = <&cluster0_l2>; ++ clock-names = "baikal-ca57_cmu"; ++ operating-points-v2 = <&cluster0_opp>; ++ }; ++ ++ CPU1: cpu@1 { ++ device_type = "cpu"; ++ compatible = "arm,cortex-a57"; ++ reg = <0x0 0x1>; ++ enable-method = "psci"; ++ i-cache-size = <0xc000>; ++ i-cache-line-size = <64>; ++ i-cache-sets = <256>; ++ d-cache-size = <0x8000>; ++ d-cache-line-size = <64>; ++ d-cache-sets = <256>; ++ clocks = <&cmu_cluster0>; ++ next-level-cache = <&cluster0_l2>; ++ clock-names = "baikal-ca57_cmu"; ++ operating-points-v2 = <&cluster0_opp>; ++ }; ++ ++ CPU2: cpu@100 { ++ device_type = "cpu"; ++ compatible = "arm,cortex-a57"; ++ reg = <0x0 0x100>; ++ enable-method = "psci"; ++ i-cache-size = <0xc000>; ++ i-cache-line-size = <64>; ++ i-cache-sets = <256>; ++ d-cache-size = <0x8000>; ++ d-cache-line-size = <64>; ++ d-cache-sets = <256>; ++ clocks = <&cmu_cluster1>; ++ next-level-cache = <&cluster1_l2>; ++ clock-names = "baikal-ca57_cmu"; ++ operating-points-v2 = <&cluster1_opp>; ++ }; ++ ++ CPU3: cpu@101 { ++ device_type = "cpu"; ++ compatible = "arm,cortex-a57"; ++ reg = <0x0 0x101>; ++ enable-method = "psci"; ++ i-cache-size = <0xc000>; ++ i-cache-line-size = <64>; ++ i-cache-sets = <256>; ++ d-cache-size = <0x8000>; ++ d-cache-line-size = <64>; ++ d-cache-sets = <256>; ++ clocks = <&cmu_cluster1>; ++ next-level-cache = <&cluster1_l2>; ++ clock-names = "baikal-ca57_cmu"; ++ operating-points-v2 = <&cluster1_opp>; ++ }; ++ ++ CPU4: cpu@200 { ++ device_type = "cpu"; ++ compatible = "arm,cortex-a57"; ++ reg = <0x0 0x200>; ++ enable-method = "psci"; ++ i-cache-size = <0xc000>; ++ i-cache-line-size = <64>; ++ i-cache-sets = <256>; ++ d-cache-size = <0x8000>; ++ d-cache-line-size = <64>; ++ d-cache-sets = <256>; ++ clocks = <&cmu_cluster2>; ++ next-level-cache = <&cluster2_l2>; ++ clock-names = "baikal-ca57_cmu"; ++ operating-points-v2 = <&cluster2_opp>; ++ }; ++ ++ CPU5: cpu@201 { ++ device_type = "cpu"; ++ compatible = "arm,cortex-a57"; ++ reg = <0x0 0x201>; ++ enable-method = "psci"; ++ i-cache-size = <0xc000>; ++ i-cache-line-size = <64>; ++ i-cache-sets = <256>; ++ d-cache-size = <0x8000>; ++ d-cache-line-size = <64>; ++ d-cache-sets = <256>; ++ clocks = <&cmu_cluster2>; ++ next-level-cache = <&cluster2_l2>; ++ clock-names = "baikal-ca57_cmu"; ++ operating-points-v2 = <&cluster2_opp>; ++ }; ++ ++ CPU6: cpu@300 { ++ device_type = "cpu"; ++ compatible = "arm,cortex-a57"; ++ reg = <0x0 0x300>; ++ enable-method = "psci"; ++ i-cache-size = <0xc000>; ++ i-cache-line-size = <64>; ++ i-cache-sets = <256>; ++ d-cache-size = <0x8000>; ++ d-cache-line-size = <64>; ++ d-cache-sets = <256>; ++ clocks = <&cmu_cluster3>; ++ next-level-cache = <&cluster3_l2>; ++ clock-names = "baikal-ca57_cmu"; ++ operating-points-v2 = <&cluster3_opp>; ++ }; ++ ++ CPU7: cpu@301 { ++ device_type = "cpu"; ++ compatible = "arm,cortex-a57"; ++ reg = <0x0 0x301>; ++ enable-method = "psci"; ++ i-cache-size = <0xc000>; ++ i-cache-line-size = <64>; ++ i-cache-sets = <256>; ++ d-cache-size = <0x8000>; ++ d-cache-line-size = <64>; ++ d-cache-sets = <256>; ++ clocks = <&cmu_cluster3>; ++ next-level-cache = <&cluster3_l2>; ++ clock-names = "baikal-ca57_cmu"; ++ operating-points-v2 = <&cluster3_opp>; ++ }; ++ ++ cluster0_l2: l2-cache0 { ++ compatible = "cache"; ++ cache-size = <0x100000>; ++ cache-line-size = <64>; ++ cache-sets = <1024>; ++ cache-unified; ++ cache-level = <2>; ++ next-level-cache = <&l3>; ++ }; ++ ++ cluster1_l2: l2-cache1 { ++ compatible = "cache"; ++ cache-size = <0x100000>; ++ cache-line-size = <64>; ++ cache-sets = <1024>; ++ cache-unified; ++ cache-level = <2>; ++ next-level-cache = <&l3>; ++ }; ++ ++ cluster2_l2: l2-cache2 { ++ compatible = "cache"; ++ cache-size = <0x100000>; ++ cache-line-size = <64>; ++ cache-sets = <1024>; ++ cache-unified; ++ cache-level = <2>; ++ next-level-cache = <&l3>; ++ }; ++ ++ cluster3_l2: l2-cache3 { ++ compatible = "cache"; ++ cache-size = <0x100000>; ++ cache-line-size = <64>; ++ cache-sets = <1024>; ++ cache-unified; ++ cache-level = <2>; ++ next-level-cache = <&l3>; ++ }; ++ ++ l3: l3-cache { ++ cache-size = <0x800000>; ++ cache-unified; ++ cache-level = <3>; ++ }; ++ }; ++ ++ pmu { ++ compatible = "arm,cortex-a57-pmu"; ++ interrupts = ; ++ }; ++ ++ timer { ++ compatible = "arm,armv8-timer"; ++ interrupts = , ++ , ++ , ++ ; ++ }; ++ ++ soc { ++ compatible = "simple-bus"; ++ #address-cells = <2>; ++ #size-cells = <2>; ++ ranges; ++ ++ /* DDR0 (e200000, 10000, SPI_161-166_?) */ ++ ddr1: memory-controller1@e200000 { ++ compatible = "be,emc", "be,memory-controller"; ++ reg = <0x0 0x0e200000 0x0 0x10000>; ++ interrupts = , /* ddr dfi alert err */ ++ , /* ddr ecc corrected err */ ++ , /* ddr ecc uncorrected err */ ++ , /* ddr sbr done */ ++ , /* ddr ecc corrected err fault */ ++ ; /* ddr ecc uncorrected err fault */ ++ clocks = <&soc_smc50mhz>; ++ clock-names = "apb_pclk"; ++ status = "disabled"; ++ }; ++ ++ /* DDR1 (22200000, 10000, SPI_171-176_?) */ ++ ddr2: memory-controller2@22200000 { ++ compatible = "be,emc", "be,memory-controller"; ++ reg = <0x0 0x22200000 0x0 0x10000>; ++ interrupts = , /* ddr dfi alert err */ ++ , /* ddr ecc corrected err */ ++ , /* ddr ecc uncorrected err */ ++ , /* ddr sbr done */ ++ , /* ddr ecc corrected err fault */ ++ ; /* ddr ecc uncorrected err fault */ ++ clocks = <&soc_smc50mhz>; ++ clock-names = "apb_pclk"; ++ status = "disabled"; ++ }; ++ ++ pcie_lcru: lcru@2000000 { ++ compatible = "syscon"; ++ reg = <0x0 0x2000000 0x0 0x80000>; ++ /*big-endian;*/ ++ status = "disabled"; ++ }; ++ ++ pcie0: pcie@2200000 { /* PCIe x4 #0 */ ++ compatible = "baikal,pcie-m", "snps,dw-pcie"; ++ reg = <0x0 0x02200000 0x0 0x1000>, /* RC config space */ ++ <0x0 0x40100000 0x0 0x100000>; /* PCI config space */ ++ reg-names = "dbi", "config"; ++ interrupts = , /* AER */ ++ ; /* MSI */ ++ #interrupt-cells = <1>; ++ baikal,pcie-lcru = <&pcie_lcru 0>; ++ #address-cells = <3>; ++ #size-cells = <2>; ++ device_type = "pci"; ++ ranges = <0x81000000 0x0 0x00000000 0x0 0x40200000 0x0 0x100000>, /* I/O */ ++ <0x82000000 0x0 0x40000000 0x4 0x00000000 0x0 0x40000000>; /* 32b non-prefetchable memory */ ++ msi-parent = <&its 0x0>; ++ msi-map = <0x0 &its 0x0 0x10000>; ++ num-lanes = <4>; ++ num-viewport = <4>; ++ bus-range = <0x0 0xff>; ++ status = "disabled"; ++ }; ++ ++ pcie1: pcie@2210000 { /* PCIe x4 #1 */ ++ compatible = "baikal,pcie-m", "snps,dw-pcie"; ++ reg = <0x0 0x02210000 0x0 0x1000>, /* RC config space */ ++ <0x0 0x50100000 0x0 0x100000>; /* PCI config space */ ++ reg-names = "dbi", "config"; ++ interrupts = , /* AER */ ++ ; /* MSI */ ++ #interrupt-cells = <1>; ++ baikal,pcie-lcru = <&pcie_lcru 1>; ++ #address-cells = <3>; ++ #size-cells = <2>; ++ device_type = "pci"; ++ ranges = <0x81000000 0x0 0x00100000 0x0 0x50000000 0x0 0x100000>, /* I/O */ ++ <0x82000000 0x0 0x40000000 0x5 0x00000000 0x0 0x40000000>; /* 32b non-prefetchable memory */ ++ msi-parent = <&its 0x0>; ++ msi-map = <0x0 &its 0x0 0x10000>; ++ num-lanes = <4>; ++ num-viewport = <4>; ++ bus-range = <0x0 0xff>; ++ status = "disabled"; ++ }; ++ ++ pcie2: pcie@2220000 { /* PCIe x8 */ ++ compatible = "baikal,pcie-m", "snps,dw-pcie"; ++ reg = <0x0 0x02220000 0x0 0x1000>, /* RC config space */ ++ <0x0 0x60000000 0x0 0x100000>; /* PCI config space */ ++ reg-names = "dbi", "config"; ++ interrupts = , /* AER */ ++ ; /* MSI */ ++ #interrupt-cells = <1>; ++ baikal,pcie-lcru = <&pcie_lcru 2>; ++ #address-cells = <3>; ++ #size-cells = <2>; ++ device_type = "pci"; ++ ranges = <0x81000000 0x0 0x00200000 0x0 0x60100000 0x0 0x100000>, /* I/O */ ++ <0x82000000 0x0 0x80000000 0x6 0x00000000 0x0 0x80000000>; /* 32b non-prefetchable memory */ ++ msi-parent = <&its 0x0>; ++ msi-map = <0x0 &its 0x0 0x10000>; ++ num-lanes = <8>; ++ num-viewport = <4>; ++ bus-range = <0x0 0xff>; ++ status = "disabled"; ++ }; ++ ++ ccn: ccn@9000000 { ++ compatible = "arm,ccn-504"; ++ reg = <0x0 0x9000000 0 0x1000000>; ++ interrupts = ; ++ }; ++ ++ pvt0: pvt0@28200000 { ++ compatible = "baikal,pvt"; ++ reg = <0x0 0x28200000 0x0 0x10000>; ++ pvt_id = <0>; ++ interrupts = ; ++ status = "disabled"; ++ }; ++ ++ pvt1: pvt1@c200000 { ++ compatible = "baikal,pvt"; ++ reg = <0x0 0xc200000 0x0 0x10000>; ++ pvt_id = <1>; ++ interrupts = ; ++ status = "disabled"; ++ }; ++ ++ pvt2: pvt2@a200000 { ++ compatible = "baikal,pvt"; ++ reg = <0x0 0xa200000 0x0 0x10000>; ++ pvt_id = <2>; ++ interrupts = ; ++ status = "disabled"; ++ }; ++ ++ pvt3: pvt3@26200000 { ++ compatible = "baikal,pvt"; ++ reg = <0x0 0x26200000 0x0 0x10000>; ++ pvt_id = <3>; ++ interrupts = ; ++ status = "disabled"; ++ }; ++ ++ pvt_mali: pvt_mali@2a060000 { ++ compatible = "baikal,pvt"; ++ reg = <0x0 0x2a060000 0x0 0x10000>; ++ pvt_id = <4>; ++ interrupts = ; ++ status = "disabled"; ++ }; ++ ++ /* AVLSP: GPIO32 (20200000, 10000, SPI_131_H) */ ++ gpio: gpio@20200000 { ++ compatible = "snps,dw-apb-gpio"; ++ reg = <0x0 0x20200000 0x0 0x10000>; ++ #address-cells = <1>; ++ #size-cells = <0>; ++ interrupts = ; ++ status = "disabled"; ++ ++ porta: gpio-controller@0 { ++ compatible = "snps,dw-apb-gpio-port"; ++ #gpio-cells = <2>; ++ gpio-controller; ++ snps,nr-gpios = <32>; ++ reg = <0>; ++ #interrupt-cells = <2>; ++ interrupt-controller; ++ interrupts = ; ++ }; ++ }; ++ ++ /* AVLSP: SPI (20210000, 10000, SPI_132_H) */ ++ spi0: spi@20210000 { ++ compatible = "snps,dw-apb-ssi", "snps,dw-spi"; ++ reg = <0x0 0x20210000 0x0 0x10000>; ++ #address-cells = <1>; ++ #size-cells = <0>; ++ interrupts = ; ++ clocks = <&cmu0_avlsp 4>; ++ clock-names = "soc_spiclk"; ++ status = "disabled"; ++ }; ++ ++ /* AVLSP: I2S (20220000, 1000, SPI_136-139_H) */ ++ i2s: i2s@20220000 { ++ compatible = "snps,designware-i2s"; ++ reg = <0x0 0x20220000 0x0 0x10000>; ++ interrupts = , /* rx_da */ ++ , /* rx_or */ ++ , /* tx_emp */ ++ ; /* tx_or */ ++ /*dmas = <&dma 2>, <&dma 3>;*/ ++ /*dma-names = "tx", "rx";*/ ++ /*#sound-dai-cells = <0>;*/ ++ clocks = <&soc_tmp_clk>; ++ clock-names = "i2sclk"; ++ status = "disabled"; ++ }; ++ ++ /* AVLSP: UART1 (20230000, 10000, SPI_133_H) */ ++ uart0: serial0@20230000 { ++ compatible = "snps,dw-apb-uart"; /* "snps,uart-16550-compatible" */ ++ reg = <0x0 0x20230000 0x0 0x10000>; ++ interrupts = ; ++ reg-shift = <2>; ++ reg-io-width = <4>; ++ clocks = <&cmu0_avlsp 1>, <&apb_clk>; ++ clock-names = "soc_uartclk", "apb_pclk"; ++ /*dcd-override;*/ ++ /*dsr-override;*/ ++ /*cts-override;*/ ++ /*ri-override;*/ ++ status = "disabled"; ++ }; ++ ++ /* AVLSP: UART2 (20240000, 10000, SPI_134_H) */ ++ uart1: serial1@20240000 { ++ compatible = "snps,dw-apb-uart"; /* "snps,uart-16550-compatible" */ ++ reg = <0x0 0x20240000 0x0 0x10000>; ++ interrupts = ; ++ reg-shift = <2>; ++ reg-io-width = <4>; ++ clocks = <&cmu0_avlsp 2>, <&apb_clk>; ++ clock-names = "soc_uartclk", "apb_pclk"; ++ status = "disabled"; ++ }; ++ ++ /* AVLSP: I2C1 (20250000, 10000, SPI_140_H) */ ++ i2c0: i2c0@20250000 { ++ compatible = "snps,designware-i2c"; ++ #address-cells = <1>; ++ #size-cells = <0>; ++ reg = <0x0 0x20250000 0x0 0x10000>; ++ interrupts = ; ++ i2c-sda-hold-time-ns = <500>; ++ clock-frequency = <400000>; ++ clocks = <&i2c_clk>; ++ clock-names = "soc_i2cclk"; ++ status = "disabled"; ++ }; ++ ++ /* AVLSP: I2C2 (20260000, 10000, SPI_141_H) */ ++ i2c1: i2c1@20260000 { ++ compatible = "snps,designware-i2c"; ++ #address-cells = <1>; ++ #size-cells = <0>; ++ reg = <0x0 0x20260000 0x0 0x10000>; ++ interrupts = ; ++ i2c-sda-hold-time-ns = <500>; ++ clock-frequency = <400000>; ++ clocks = <&i2c_clk>; ++ clock-names = "soc_i2cclk"; ++ status = "disabled"; ++ }; ++ ++ /* AVLSP: SMBus1 (20270000, 10000, SPI_142_?) */ ++ smbus0: smbus0@20270000 { ++ compatible = "be,smbus"; ++ #address-cells = <1>; ++ #size-cells = <0>; ++ reg = <0x0 0x20270000 0x0 0x10000>; ++ interrupts = ; ++ clock-frequency = <100000>; ++ clocks = <&smbus_clk>; ++ clock-names = "soc_smbusclk"; ++ status = "disabled"; ++ }; ++ ++ /* AVLSP: SMBus2 (20280000, 10000, SPI_143_?) */ ++ smbus1: smbus1@20280000 { ++ compatible = "be,smbus"; ++ #address-cells = <1>; ++ #size-cells = <0>; ++ reg = <0x0 0x20280000 0x0 0x10000>; ++ interrupts = ; ++ clock-frequency = <100000>; ++ clocks = <&smbus_clk>; ++ clock-names = "soc_smbusclk"; ++ status = "disabled"; ++ }; ++ ++ /* AVLSP: Timers (20290000, 10000, SPI_127_L) */ ++ timer1: timer1@20290000 { ++ compatible = "snps,dw-apb-timer-osc"; ++ reg = <0x0 0x20290000 0x0 0x14>; ++ interrupts = ; ++ clock-frequency = <50000000>; ++ clocks = <&timer1_clk>; ++ clock-names = "soc_timer1clk"; ++ status = "disabled"; ++ }; ++ ++ /* AVLSP: Timers (20290000, 10000, SPI_128_L) */ ++ timer2: timer2@20290014 { ++ compatible = "snps,dw-apb-timer-sp"; ++ reg = <0x0 0x20290014 0x0 0x14>; ++ interrupts = ; ++ clock-frequency = <50000000>; ++ clocks = <&timer2_clk>; ++ clock-names = "soc_timer2clk"; ++ status = "disabled"; ++ }; ++ ++ /* AVLSP: Timers (20290000, 10000, SPI_129_L) */ ++ timer3: timer3@20290028 { ++ compatible = "snps,dw-apb-timer-sp"; ++ reg = <0x0 0x20290028 0x0 0x14>; ++ interrupts = ; ++ clock-frequency = <50000000>; ++ clocks = <&timer3_clk>; ++ clock-names = "soc_timer3clk"; ++ status = "disabled"; ++ }; ++ ++ /* AVLSP: Timers (20290000, 10000, SPI_130_L) */ ++ timer4: timer4@2029003c { ++ compatible = "snps,dw-apb-timer-sp"; ++ reg = <0x0 0x2029003c 0x0 0x14>; ++ interrupts = ; ++ clock-frequency = <50000000>; ++ clocks = <&timer4_clk>; ++ clock-names = "soc_timer4clk"; ++ status = "disabled"; ++ }; ++ ++ /* AVLSP: eSPI (202a0000, 10000, SPI_135_?) */ ++ espi0: espi0@202a0000 { ++ compatible = "be,espi"; ++ reg = <0x0 0x202a0000 0x0 0x10000>; ++ #address-cells = <1>; ++ #size-cells = <0>; ++ interrupts = ; ++ clocks = <&cmu0_avlsp 5>; ++ clock-names = "soc_espiclk"; ++ status = "disabled"; ++ /* ++ * Block Configuration: ++ * - master/slave ++ * - 32-bit APB slave ++ * - tx-fifo = rx-fifo = 256 byte ++ * - 4 SPI IO channels ++ * - 8 slave select IO channels ++ * - DMA - missing ++ * - M-flash controller - missing ++ */ ++ }; ++ ++ /* AVLSP: DMAC (202b0000, 10000, SPI_41-80_H) */ ++ lsdma: dma@202b0000 { ++ compatible = "snps,dma-spear1340"; ++ reg = <0x0 0x202b0000 0x0 0x10000>; ++ /* TODO: interrupts */ ++ interrupts = ; ++ dma-channels = <8>; ++ dma-requests = <16>; ++ dma-masters = <2>; ++ #dma-cells = <3>; ++ chan_allocation_order = <1>; ++ chan_priority = <1>; ++ block_size = <0xfff>; ++ data_width = <3 3 0 0>; ++ clocks = <&soc_tmp_clk>; ++ clock-names = "tmpclk"; ++ status = "disabled"; ++ }; ++ ++ /* AVLSP: HDA (202c0000, 10000, SPI_86_H) */ ++ hda: hda@202c0000 { ++ compatible = "be,cw-hda"; ++ reg = <0x0 0x202c0000 0x0 0x1000>; ++ interrupts = ; ++ clocks = <&cmu0_avlsp 15>, <&cmu0_avlsp 16>; ++ clock-names = "hda_sys_clk", "hda_clk48"; ++ status = "disabled"; ++ }; ++ ++ /* AVLSP: VDU (202d0000, 10000, SPI_144-145_?) */ ++ vdu0: vdu_lvds@202d0000 { ++ compatible = "baikal,vdu"; ++ reg = <0x0 0x202d0000 0x0 0x1000>; ++ interrupts = , /* VDU INTR */ ++ ; /* VDU INTR_CDD */ ++ clocks = <&cmu1_avlsp_div7>; ++ clock-names = "pclk"; ++ lvds-out; ++ status = "disabled"; ++ }; ++ ++ /* AVLSP: SD/eMMC (202e0000, 10000, SPI_83-84_H) */ ++ mmc0: mmc@202e0000 { ++ compatible = "snps,dwcmshc-sdhci"; ++ reg = <0x0 0x202e0000 0x0 0x10000>; ++ interrupt-parent = <&gic>; ++ interrupts = , ++ ; ++ clock-names = "bus", "core"; ++ clocks = <&cmu0_avlsp 18>, <&cmu0_avlsp 19>; ++ status = "disabled"; ++ }; ++ ++ vdec: vdec@24200000 { ++ compatible = "baikal,d5500-vxd"; ++ reg = <0x0 0x24200000 0x0 0x10000>; ++ interrupts = ; ++ status = "disabled"; ++ }; ++ ++ gpu: gpu@2a200000 { ++ compatible = "arm,mali-midgard", "arm,mali-t628"; ++ #cooling-cells = <2>; /* min followed by max */ ++ reg = <0x0 0x2a200000 0x0 0x4000>; ++ interrupts = , ++ , ++ ; ++ interrupt-names = "job", "mmu", "gpu"; ++ clocks = <&cmu_mali>; ++ clock-names = "gpuclk"; ++ operating-points-v2 = <&gpu_opp_table>; ++ }; ++ ++ /* USB MM: USB2 (2c400000, 100000, SPI_267-268_H, SPI_277_H) */ ++ usb2: usb2@2c400000 { ++ compatible = "be,baikal-dwc3"; ++ status = "disabled"; ++ #address-cells = <2>; ++ #size-cells = <2>; ++ ranges; ++ clocks = <&usb_clk>; ++ clock-names = "usb"; ++ dma-coherent; ++ ++ dwc3@2c400000 { ++ compatible = "snps,dwc3", "synopsys,dwc3", "generic-xhci"; ++ reg = <0x0 0x2c400000 0x0 0x100000>; ++ interrupts = , ++ , ++ ; ++ dr_mode = "host"; ++ dma-coherent; ++ maximum-speed = "high-speed"; ++ }; ++ }; ++ ++ /* USB MM: USB3 (2c500000, 100000, SPI_269-276_H, SPI_278_H) */ ++ usb3: usb3@2c500000 { ++ compatible = "be,baikal-dwc3"; ++ status = "disabled"; ++ #address-cells = <2>; ++ #size-cells = <2>; ++ ranges; ++ clocks = <&usb_clk>; ++ clock-names = "usb"; ++ ++ dwc3@2c500000 { ++ compatible = "snps,dwc3", "synopsys,dwc3", "generic-xhci"; ++ reg = <0x0 0x2c500000 0x0 0x100000>; ++ interrupts = , ++ , ++ , ++ , ++ , ++ , ++ , ++ , ++ ; ++ dr_mode = "host"; ++ dma-coherent; ++ }; ++ }; ++ ++ /* USB MM: SATA0 (2c600000, 10000, SPI_265_H) */ ++ sata0: sata0@2c600000 { ++ compatible = "snps,dwc-ahci", "generic-ahci"; ++ reg = <0x0 0x2c600000 0 0x10000>; ++ interrupt-parent = <&gic>; ++ interrupts = ; ++ ports-implemented = <1>; ++ dma-coherent; ++ clocks = <&soc_faxiclk>; ++ clock-names = "sataclk"; ++ status = "disabled"; ++ }; ++ ++ /* USB MM: SATA1 (2c610000, 10000, SPI_266_H) */ ++ sata1: sata1@2c610000 { ++ compatible = "snps,dwc-ahci", "generic-ahci"; ++ reg = <0x0 0x2c610000 0 0x10000>; ++ interrupt-parent = <&gic>; ++ interrupts = ; ++ ports-implemented = <1>; ++ dma-coherent; ++ clocks = <&soc_faxiclk>; ++ clock-names = "sataclk"; ++ status = "disabled"; ++ }; ++ ++ /* DMA-330: DMAC ("secure", 2c620000, 10000, SPI_255-263_H) */ ++ /* ("non-secure", 2c630000, 10000, ?) */ ++ dma: dma@2c620000 { ++ compatible = "arm,pl330", "arm,primecell"; ++ reg = <0x0 0x2c620000 0 0x1000>; ++ #dma-cells = <1>; ++ #dma-channels = <8>; ++ #dma-requests = <32>; ++ interrupts = , ++ , ++ , ++ , ++ , ++ , ++ , ++ , ++ ; ++ clocks = <&soc_faxiclk>; ++ clock-names = "apb_pclk"; ++ status = "disabled"; ++ }; ++ ++ gic: interrupt-controller@2d000000 { ++ compatible = "arm,gic-v3"; ++ #interrupt-cells = <3>; ++ #address-cells = <2>; ++ #size-cells = <2>; ++ ranges; ++ interrupt-controller; ++ reg = <0x0 0x2d000000 0x0 0x10000>, /* GICD */ ++ <0x0 0x2d100000 0x0 0x200000>, /* GICR */ ++ <0x0 0x10200000 0x0 0x2000>, /* GICC */ ++ <0x0 0x10210000 0x0 0x1000>, /* GICH */ ++ <0x0 0x10220000 0x0 0x2000>; /* GICV */ ++ interrupts = ; ++ ++ its: its@2d020000 { ++ compatible = "arm,gic-v3-its"; ++ msi-controller; ++ #msi-cells = <1>; ++ reg = <0x0 0x2d020000 0x0 0x20000>; /* GITS */ ++ }; ++ }; ++ ++ axi_gmac: stmmac-axi-config0 { ++ snps,wr_osr_lmt = <0x0>; ++ snps,rd_osr_lmt = <0x0>; ++ snps,blen = <0 0 0 0 0 0 4>; ++ }; ++ ++ gmac0: eth0@30240000 { ++ compatible = "be,dwmac", "snps,dwmac-3.710", "snps,dwmac"; ++ reg = <0x0 0x30240000 0x0 0x10000>; ++ interrupt-parent = <&gic>; ++ interrupts = ; ++ interrupt-names = "macirq"; ++ max-speed = <1000>; ++ clocks = <&soc_ethclk>, <&cmu0_xgbe 10>; ++ clock-names = "stmmaceth", "tx2_clk"; ++ mac-address = [ 00 00 00 00 00 00 ]; ++ local-mac-address = [ 00 00 00 00 00 00 ]; ++ phy-mode = "rgmii-id"; ++ phy-handle = <&gmac0_phy>; ++ snps,fixed-burst; ++ snps,axi-config = <&axi_gmac>; ++ snps,no-pbl-x8; ++ snps,txpbl = <4>; ++ snps,rxpbl = <4>; ++ snps,reset-delays-us = <0 10200 1000>; ++ status = "disabled"; ++ dma-coherent; ++ ++ gmdio0: gmac0_mdio { ++ compatible = "snps,dwmac-mdio"; ++ #address-cells = <1>; ++ #size-cells = <0>; ++ ++ gmac0_phy: ethernet-phy@3 { ++ compatible = "micrel,ksz9031", "ethernet-phy-id0022.1620", "ethernet-phy-ieee802.3-c22"; ++ reg = <0x3>; ++ txd0-skew-ps = <0>; ++ txd1-skew-ps = <0>; ++ txd2-skew-ps = <0>; ++ txd3-skew-ps = <0>; ++ txc-skew-ps = <0xff>; ++ }; ++ }; ++ }; ++ ++ gmac1: eth1@30250000 { ++ compatible = "be,dwmac", "snps,dwmac-3.710", "snps,dwmac"; ++ reg = <0x0 0x30250000 0x0 0x10000>; ++ interrupt-parent = <&gic>; ++ interrupts = ; ++ interrupt-names = "macirq"; ++ max-speed = <1000>; ++ clocks = <&soc_ethclk>, <&cmu0_xgbe 13>; ++ clock-names = "stmmaceth", "tx2_clk"; ++ mac-address = [ 00 00 00 00 00 00 ]; ++ local-mac-address = [ 00 00 00 00 00 00 ]; ++ phy-mode = "rgmii-id"; ++ phy-handle = <&gmac1_phy>; ++ snps,fixed-burst; ++ snps,axi-config = <&axi_gmac>; ++ snps,no-pbl-x8; ++ snps,txpbl = <4>; ++ snps,rxpbl = <4>; ++ snps,reset-delays-us = <0 10200 1000>; ++ status = "disabled"; ++ dma-coherent; ++ ++ gmdio1: gmac1_mdio { ++ compatible = "snps,dwmac-mdio"; ++ #address-cells = <1>; ++ #size-cells = <0>; ++ ++ gmac1_phy: ethernet-phy@3 { ++ compatible = "micrel,ksz9031", "ethernet-phy-id0022.1620", "ethernet-phy-ieee802.3-c22"; ++ reg = <0x3>; ++ txd0-skew-ps = <0>; ++ txd1-skew-ps = <0>; ++ txd2-skew-ps = <0>; ++ txd3-skew-ps = <0>; ++ txc-skew-ps = <0xff>; ++ }; ++ }; ++ }; ++ ++ /* Baikal internal MDIO */ ++ mdio0: be-mdio { ++ compatible = "be,mdio-gpio"; ++ #address-cells = <1>; ++ #size-cells = <0>; ++ mdc-pin = <&porta 30 GPIO_ACTIVE_HIGH>; ++ mdio-pin = <&porta 29 GPIO_ACTIVE_HIGH>; ++ clocks = <&gpio_clk>; ++ clock-names = "gpioclk"; ++ ++ mv_ch0: ethernet-phy@c { ++ compatible = "marvell,88x2222", "ethernet-phy-ieee802.3-c45"; ++ reg = <0x0c>; ++ phy-mode = "xgmii"; ++ mv,line-mode = "KR"; ++ mv,host-mode = "KX4"; ++ }; ++ ++ mv_ch2: ethernet-phy@e { ++ compatible = "marvell,88x2222", "ethernet-phy-ieee802.3-c45"; ++ reg = <0x0e>; ++ phy-mode = "xgmii"; ++ mv,line-mode = "KR"; ++ mv,host-mode = "KX4"; ++ }; ++ }; ++ ++ /* XGMAC0 */ ++ xgmac0: eth2@30200000 { ++ compatible = "amd,xgbe-seattle-v1a"; ++ reg = <0x0 0x30200000 0x0 0x10000>, ++ <0x0 0x30210000 0x0 0x10000>; ++ interrupt-parent = <&gic>; ++ interrupts = , ++ , ++ , ++ , ++ , ++ , ++ , ++ , ++ , ++ , ++ , ++ , ++ , ++ , ++ , ++ , ++ ; ++ fsl,num-rx-queues=<3>; ++ clocks = <&soc_xgbeclk>, <&soc_xgbeclk>, <&soc_xgbeclk>; ++ clock-names = "dma_clk", "ptp_clk", "xgbe_clk"; ++ phy-mode = "xgmii"; ++ mac-address = [ 00 20 13 ba 1c a1 ]; ++ local-mac-address = [ 00 20 13 ba 1c a1 ]; ++ be,pcs-mode = "KX4"; ++ ext-phy-handle = <&mv_ch0>; ++ status = "disabled"; ++ amd,per-channel-interrupt; ++ amd,speed-set = <0>; ++ #stream-id-cells = <16>; ++ }; ++ ++ /* XGMAC1 */ ++ xgmac1: eth3@30220000 { ++ compatible = "amd,xgbe-seattle-v1a"; ++ reg = <0x0 0x30220000 0x0 0x10000>, ++ <0x0 0x30230000 0x0 0x10000>; ++ interrupt-parent = <&gic>; ++ interrupts = , ++ , ++ , ++ , ++ , ++ , ++ , ++ , ++ , ++ , ++ , ++ , ++ , ++ , ++ , ++ , ++ ; ++ fsl,num-rx-queues=<3>; ++ clocks = <&soc_xgbeclk>, <&soc_xgbeclk>, <&soc_xgbeclk>; ++ clock-names = "dma_clk", "ptp_clk", "xgbe_clk"; ++ phy-mode = "xgmii"; ++ mac-address = [ 00 20 13 ba 1c a2 ]; ++ local-mac-address = [ 00 20 13 ba 1c a2 ]; ++ be,pcs-mode = "KX4"; ++ ext-phy-handle = <&mv_ch2>; ++ status = "disabled"; ++ amd,per-channel-interrupt; ++ amd,speed-set = <0>; ++ #stream-id-cells = <16>; ++ }; ++ ++ /* HDMI VDU (30260000, 10000, SPI_361-362_?) */ ++ vdu1: vdu_hdmi@30260000 { ++ compatible = "baikal,vdu"; ++ reg = <0x0 0x30260000 0x0 0x1000>; ++ interrupts = , /* VDU INTR */ ++ ; /* VDU INTR_CDD */ ++ clocks = <&cmu1_xgbe 0>; ++ clock-names = "pclk"; ++ status = "disabled"; ++ ++ port { ++ vdu_hdmi_out: endpoint { ++ remote-endpoint = <&hdmi_tx_in>; ++ }; ++ }; ++ }; ++ ++ hdmi: hdmi@30280000 { ++ compatible = "baikal,hdmi"; ++ reg = <0 0x30280000 0 0x20000>; ++ reg-io-width = <4>; ++ interrupts = ; ++ clocks = <&cmu0_xgbe 0>, <&cmu0_xgbe 17>; ++ clock-names = "iahb", "isfr"; ++ status = "disabled"; ++ ++ ports { ++ #address-cells = <1>; ++ #size-cells = <0>; ++ port@0 { ++ reg = <0>; ++ hdmi_tx_in: endpoint { ++ remote-endpoint = <&vdu_hdmi_out>; ++ }; ++ }; ++ port@1 { ++ reg = <1>; ++ hdmi_tx_out: endpoint { ++ remote-endpoint = <&hdmi_con>; ++ }; ++ }; ++ }; ++ }; ++ }; /* end of soc node */ ++ ++ hdmi-out { ++ compatible = "hdmi-connector"; ++ label = "HDMI0 OUT"; ++ type = "a"; ++ ++ port { ++ hdmi_con: endpoint { ++ remote-endpoint = <&hdmi_tx_out>; ++ }; ++ }; ++ }; ++}; +diff --git a/arch/arm64/boot/dts/rockchip/Makefile b/arch/arm64/boot/dts/rockchip/Makefile +index 7fdb41de01ec..4d4adf399849 100644 +--- a/arch/arm64/boot/dts/rockchip/Makefile ++++ b/arch/arm64/boot/dts/rockchip/Makefile +@@ -52,3 +52,5 @@ dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3399-sapphire.dtb + dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3399-sapphire-excavator.dtb + dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3399pro-rock-pi-n10.dtb + dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3568-evb1-v10.dtb ++ ++subdir-y := $(dts-dirs) overlay +diff --git a/arch/arm64/boot/dts/rockchip/overlay/Makefile b/arch/arm64/boot/dts/rockchip/overlay/Makefile +new file mode 100644 +index 000000000000..0fce5206d2bd +--- /dev/null ++++ b/arch/arm64/boot/dts/rockchip/overlay/Makefile +@@ -0,0 +1,22 @@ ++# SPDX-License-Identifier: GPL-2.0 ++dtbo-$(CONFIG_ARCH_ROCKCHIP) += \ ++ rockchip-i2c7.dtbo \ ++ rockchip-i2c8.dtbo \ ++ rockchip-pcie-gen2.dtbo \ ++ rockchip-spi-jedec-nor.dtbo \ ++ rockchip-spi-spidev.dtbo \ ++ rockchip-uart4.dtbo \ ++ rockchip-dwc3-0-host.dtbo \ ++ rockchip-w1-gpio.dtbo ++ ++scr-$(CONFIG_ARCH_ROCKCHIP) += \ ++ rockchip-fixup.scr ++ ++dtbotxt-$(CONFIG_ARCH_ROCKCHIP) += \ ++ README.rockchip-overlays ++ ++targets += $(dtbo-y) $(scr-y) $(dtbotxt-y) ++ ++always := $(dtbo-y) $(scr-y) $(dtbotxt-y) ++clean-files := *.dtbo *.scr ++ +diff --git a/arch/arm64/boot/dts/rockchip/overlay/README.rockchip-overlays b/arch/arm64/boot/dts/rockchip/overlay/README.rockchip-overlays +new file mode 100644 +index 000000000000..48ca48fc3113 +--- /dev/null ++++ b/arch/arm64/boot/dts/rockchip/overlay/README.rockchip-overlays +@@ -0,0 +1,106 @@ ++This document describes overlays provided in the kernel packages ++For generic Armbian overlays documentation please see ++https://docs.armbian.com/User-Guide_Allwinner_overlays/ ++ ++### Platform: ++ ++rockchip (Rockchip) ++ ++### Provided overlays: ++ ++- i2c7, i2c8, pcie-gen2, spi-spidev, uart4, w1-gpio ++ ++### Overlay details: ++ ++### i2c7 ++ ++Activates TWI/I2C bus 7 ++ ++I2C7 pins (SCL, SDA): GPIO2-B0, GPIO2-A7 GPIO1-C5, GPIO1-C4 ++ ++### i2c8 ++ ++Activates TWI/I2C bus 8 ++ ++I2C8 pins (SCL, SDA): GPIO1-C5, GPIO1-C4 ++ ++### pcie-gen2 ++ ++Enables PCIe Gen2 link speed on RK3399. ++WARNING! Not officially supported by Rockchip!!! ++ ++### spi-jedec-nor ++ ++Activates MTD support for JEDEC compatible SPI NOR flash chips on SPI bus ++supported by the kernel SPI NOR driver ++ ++SPI 0 pins (MOSI, MISO, SCK, CS): GPIO3_A5, GPIO3_A4, GPIO3_A6, GPIO3_A7 ++SPI 1 pins (MOSI, MISO, SCK, CS): GPIO1_A7, GPIO1_B0, GPIO1_B1, GPIO1_B2 ++SPI 2 pins (MOSI, MISO, SCK, CS): GPIO1_C0, GPIO1_B7, GPIO1_C1, GPIO1_C2 ++SPI 3 pins (MOSI, MISO, SCK, CS): GPIO2_B2, GPIO2_B1, GPIO2_B3, GPIO2_B4 ++ ++Parameters: ++ ++param_spinor_spi_bus (int) ++ SPI bus to activate SPI NOR flash support on ++ Required ++ Supported values: 0, 1, 2 ++ ++param_spinor_max_freq (int) ++ Maximum SPI frequency ++ Optional ++ Default: 1000000 ++ Range: 3000 - 100000000 ++ ++### spi-spidev ++ ++Activates SPIdev device node (/dev/spidevX.Y) for userspace SPI access, ++where X is the bus number and Y is the CS number ++ ++SPI 0 pins (MOSI, MISO, SCK, CS): GPIO3_A5, GPIO3_A4, GPIO3_A6, GPIO3_A7 ++SPI 1 pins (MOSI, MISO, SCK, CS): GPIO1_A7, GPIO1_B0, GPIO1_B1, GPIO1_B2 ++SPI 2 pins (MOSI, MISO, SCK, CS): GPIO1_C0, GPIO1_B7, GPIO1_C1, GPIO1_C2 ++SPI 3 pins (MOSI, MISO, SCK, CS): GPIO2_B2, GPIO2_B1, GPIO2_B3, GPIO2_B4 ++ ++Parameters: ++ ++param_spidev_spi_bus (int) ++ SPI bus to activate SPIdev support on ++ Required ++ Supported values: 0, 1 ++ ++param_spidev_spi_cs (int) ++ SPI chip select number ++ Optional ++ Default: 0 ++ Supported values: 0, 1 ++ Using chip select 1 requires using "spi-add-cs1" overlay ++ ++param_spidev_max_freq (int) ++ Maximum SPIdev frequency ++ Optional ++ Default: 1000000 ++ Range: 3000 - 100000000 ++ ++### uart4 ++ ++Activates UART4 ++ ++UART4 pins (RX, TX): GPIO1_A7, GPIO1_B0 ++ ++Notice: UART4 cannot be activated together with SPI1 - they share the sam pins. ++Enabling this overlay disables SPI1. ++ ++### dwc3-0-host ++ ++Forces port 0 of the DesignWare xHCI controller to host mode. ++ ++This can be used on plaforms such as NanoPC-T4, where devices plugged into the ++USB-C port may not be detected otherwise. ++ ++### w1-gpio ++ ++Activates 1-Wire GPIO master ++Requires an external pull-up resistor on the data pin ++or enabling the internal pull-up ++ +diff --git a/arch/arm64/boot/dts/rockchip/overlay/rockchip-dwc3-0-host.dts b/arch/arm64/boot/dts/rockchip/overlay/rockchip-dwc3-0-host.dts +new file mode 100644 +index 000000000000..be2f4a2736af +--- /dev/null ++++ b/arch/arm64/boot/dts/rockchip/overlay/rockchip-dwc3-0-host.dts +@@ -0,0 +1,13 @@ ++/dts-v1/; ++/plugin/; ++ ++/ { ++ compatible = "rockchip,rk3399"; ++ ++ fragment@0 { ++ target = <&usbdrd_dwc3_0>; ++ __overlay__ { ++ dr_mode = "host"; ++ }; ++ }; ++}; +diff --git a/arch/arm64/boot/dts/rockchip/overlay/rockchip-fixup.scr-cmd b/arch/arm64/boot/dts/rockchip/overlay/rockchip-fixup.scr-cmd +new file mode 100644 +index 000000000000..8e3d468f4d4b +--- /dev/null ++++ b/arch/arm64/boot/dts/rockchip/overlay/rockchip-fixup.scr-cmd +@@ -0,0 +1,62 @@ ++# overlays fixup script ++# implements (or rather substitutes) overlay arguments functionality ++# using u-boot scripting, environment variables and "fdt" command ++ ++setenv decompose_pin 'setexpr tmp_pinctrl sub "GPIO(0|1|2|3|4)_\\S\\d+" "\\1"; ++setexpr tmp_bank sub "GPIO\\d_(\\S)\\d+" "\\1"; ++test "${tmp_bank}" = "A" && setenv tmp_bank 0; ++test "${tmp_bank}" = "B" && setenv tmp_bank 1; ++test "${tmp_bank}" = "C" && setenv tmp_bank 2; ++test "${tmp_bank}" = "D" && setenv tmp_bank 3; ++setexpr tmp_pin sub "GPIO\\d_\\S(\\d+)" "\\1"; ++setexpr tmp_bank ${tmp_bank} * 8; ++setexpr tmp_pin ${tmp_bank} + ${tmp_pin}' ++ ++ ++if test -n "${param_spinor_spi_bus}"; then ++ test "${param_spinor_spi_bus}" = "0" && setenv tmp_spi_path "spi@ff1c0000" ++ test "${param_spinor_spi_bus}" = "1" && setenv tmp_spi_path "spi@ff1d0000" ++ test "${param_spinor_spi_bus}" = "2" && setenv tmp_spi_path "spi@ff1e0000" ++ test "${param_spinor_spi_bus}" = "3" && setenv tmp_spi_path "spi@ff1f0000" ++ fdt set /${tmp_spi_path} status "okay" ++ fdt set /${tmp_spi_path}/spiflash@0 status "okay" ++ if test -n "${param_spinor_max_freq}"; then ++ fdt set /${tmp_spi_path}/spiflash@0 spi-max-frequency "<${param_spinor_max_freq}>" ++ fi ++ if test "${param_spinor_spi_cs}" = "1"; then ++ fdt set /${tmp_spi_path}/spiflash@0 reg "<1>" ++ fi ++ env delete tmp_spi_path ++fi ++ ++if test -n "${param_spidev_spi_bus}"; then ++ test "${param_spidev_spi_bus}" = "0" && setenv tmp_spi_path "spi@ff1c0000" ++ test "${param_spidev_spi_bus}" = "1" && setenv tmp_spi_path "spi@ff1d0000" ++ test "${param_spidev_spi_bus}" = "2" && setenv tmp_spi_path "spi@ff1e0000" ++ test "${param_spidev_spi_bus}" = "3" && setenv tmp_spi_path "spi@ff1f0000" ++ fdt set /${tmp_spi_path} status "okay" ++ fdt set /${tmp_spi_path}/spidev status "okay" ++ if test -n "${param_spidev_max_freq}"; then ++ fdt set /${tmp_spi_path}/spidev spi-max-frequency "<${param_spidev_max_freq}>" ++ fi ++ if test "${param_spidev_spi_cs}" = "1"; then ++ fdt set /${tmp_spi_path}/spidev reg "<1>"; ++ fi ++fi ++ ++if test -n "${param_w1_pin}"; then ++ setenv tmp_pinctrl "${param_w1_pin}" ++ setenv tmp_bank "${param_w1_pin}" ++ setenv tmp_pin "${param_w1_pin}" ++ run decompose_pin ++ #echo "${param_w1_pin} ---> pinctrl = ${tmp_pinctrl}" ++ #echo "${param_w1_pin} ---> bank = ${tmp_bank}" ++ #echo "${param_w1_pin} ---> pin = ${tmp_pin}" ++ fdt get value tmp_pinctrl /__symbols__ gpio${tmp_pinctrl} ++ #echo "${param_w1_pin} ---> tmp_pinctrl = ${tmp_pinctrl}" ++ fdt get value tmp_phandle ${tmp_pinctrl} phandle ++ #echo "${param_w1_pin} ---> tmp_phandle = ${tmp_phandle}" ++ fdt set /onewire@0 gpios "<${tmp_phandle} 0x000000${tmp_pin} 0 0>" ++ env delete tmp_pinctrl tmp_bank tmp_pin tmp_phandle ++fi ++ +diff --git a/arch/arm64/boot/dts/rockchip/overlay/rockchip-i2c7.dts b/arch/arm64/boot/dts/rockchip/overlay/rockchip-i2c7.dts +new file mode 100644 +index 000000000000..f8c601550588 +--- /dev/null ++++ b/arch/arm64/boot/dts/rockchip/overlay/rockchip-i2c7.dts +@@ -0,0 +1,11 @@ ++/dts-v1/; ++ ++/ { ++ compatible = "rockchip,rk3399"; ++ fragment@0 { ++ target-path = "/i2c@ff160000"; ++ __overlay__ { ++ status = "okay"; ++ }; ++ }; ++}; +diff --git a/arch/arm64/boot/dts/rockchip/overlay/rockchip-i2c8.dts b/arch/arm64/boot/dts/rockchip/overlay/rockchip-i2c8.dts +new file mode 100644 +index 000000000000..54bc8449eafd +--- /dev/null ++++ b/arch/arm64/boot/dts/rockchip/overlay/rockchip-i2c8.dts +@@ -0,0 +1,11 @@ ++/dts-v1/; ++ ++/ { ++ compatible = "rockchip,rk3399"; ++ fragment@0 { ++ target-path = "/i2c@ff3e0000"; ++ __overlay__ { ++ status = "okay"; ++ }; ++ }; ++}; +diff --git a/arch/arm64/boot/dts/rockchip/overlay/rockchip-pcie-gen2.dts b/arch/arm64/boot/dts/rockchip/overlay/rockchip-pcie-gen2.dts +new file mode 100644 +index 000000000000..e8a51dca8f67 +--- /dev/null ++++ b/arch/arm64/boot/dts/rockchip/overlay/rockchip-pcie-gen2.dts +@@ -0,0 +1,12 @@ ++/dts-v1/; ++/plugin/; ++ ++/ { ++ compatible = "rockchip,rk3399"; ++ fragment@0 { ++ target = <&pcie0>; ++ __overlay__ { ++ max-link-speed = <2>; ++ }; ++ }; ++}; +diff --git a/arch/arm64/boot/dts/rockchip/overlay/rockchip-spi-jedec-nor.dts b/arch/arm64/boot/dts/rockchip/overlay/rockchip-spi-jedec-nor.dts +new file mode 100644 +index 000000000000..c4b1f36f9b09 +--- /dev/null ++++ b/arch/arm64/boot/dts/rockchip/overlay/rockchip-spi-jedec-nor.dts +@@ -0,0 +1,72 @@ ++/dts-v1/; ++/plugin/; ++ ++/ { ++ compatible = "rockchip,rk3399"; ++ ++ fragment@0 { ++ target-path = "/aliases"; ++ __overlay__ { ++ spi0 = "/spi@ff1c0000"; ++ spi1 = "/spi@ff1d0000"; ++ spi2 = "/spi@ff1e0000"; ++ spi3 = "/spi@ff1f0000"; ++ }; ++ }; ++ ++ fragment@1 { ++ target = <&spi0>; ++ __overlay__ { ++ #address-cells = <1>; ++ #size-cells = <0>; ++ spiflash@0 { ++ compatible = "jedec,spi-nor"; ++ reg = <0>; ++ spi-max-frequency = <10000000>; ++ status = "disabled"; ++ }; ++ }; ++ }; ++ ++ fragment@2 { ++ target = <&spi1>; ++ __overlay__ { ++ #address-cells = <1>; ++ #size-cells = <0>; ++ spiflash@0 { ++ compatible = "jedec,spi-nor"; ++ reg = <0>; ++ spi-max-frequency = <10000000>; ++ status = "disabled"; ++ }; ++ }; ++ }; ++ ++ fragment@3 { ++ target = <&spi2>; ++ __overlay__ { ++ #address-cells = <1>; ++ #size-cells = <0>; ++ spiflash@0 { ++ compatible = "jedec,spi-nor"; ++ reg = <0>; ++ spi-max-frequency = <10000000>; ++ status = "disabled"; ++ }; ++ }; ++ }; ++ ++ fragment@4 { ++ target = <&spi3>; ++ __overlay__ { ++ #address-cells = <1>; ++ #size-cells = <0>; ++ spiflash@0 { ++ compatible = "jedec,spi-nor"; ++ reg = <0>; ++ spi-max-frequency = <10000000>; ++ status = "disabled"; ++ }; ++ }; ++ }; ++}; +diff --git a/arch/arm64/boot/dts/rockchip/overlay/rockchip-spi-spidev.dts b/arch/arm64/boot/dts/rockchip/overlay/rockchip-spi-spidev.dts +new file mode 100644 +index 000000000000..18e1423637cd +--- /dev/null ++++ b/arch/arm64/boot/dts/rockchip/overlay/rockchip-spi-spidev.dts +@@ -0,0 +1,72 @@ ++/dts-v1/; ++/plugin/; ++ ++/ { ++ compatible = "rockchip,rk3399"; ++ ++ fragment@0 { ++ target-path = "/aliases"; ++ __overlay__ { ++ spi0 = "/spi@ff1c0000"; ++ spi1 = "/spi@ff1d0000"; ++ spi2 = "/spi@ff1e0000"; ++ spi3 = "/spi@ff1f0000"; ++ }; ++ }; ++ ++ fragment@1 { ++ target = <&spi0>; ++ __overlay__ { ++ #address-cells = <1>; ++ #size-cells = <0>; ++ spidev { ++ compatible = "spidev"; ++ status = "disabled"; ++ reg = <0>; ++ spi-max-frequency = <10000000>; ++ }; ++ }; ++ }; ++ ++ fragment@2 { ++ target = <&spi1>; ++ __overlay__ { ++ #address-cells = <1>; ++ #size-cells = <0>; ++ spidev { ++ compatible = "spidev"; ++ status = "disabled"; ++ reg = <0>; ++ spi-max-frequency = <10000000>; ++ }; ++ }; ++ }; ++ ++ fragment@3 { ++ target = <&spi2>; ++ __overlay__ { ++ #address-cells = <1>; ++ #size-cells = <0>; ++ spidev { ++ compatible = "spidev"; ++ status = "disabled"; ++ reg = <0>; ++ spi-max-frequency = <10000000>; ++ }; ++ }; ++ }; ++ ++ fragment@4 { ++ target = <&spi3>; ++ __overlay__ { ++ #address-cells = <1>; ++ #size-cells = <0>; ++ spidev { ++ compatible = "spidev"; ++ status = "disabled"; ++ reg = <0>; ++ spi-max-frequency = <10000000>; ++ }; ++ }; ++ }; ++}; +diff --git a/arch/arm64/boot/dts/rockchip/overlay/rockchip-uart4.dts b/arch/arm64/boot/dts/rockchip/overlay/rockchip-uart4.dts +new file mode 100644 +index 000000000000..305304ebcbf1 +--- /dev/null ++++ b/arch/arm64/boot/dts/rockchip/overlay/rockchip-uart4.dts +@@ -0,0 +1,20 @@ ++/dts-v1/; ++/plugin/; ++ ++/ { ++ compatible = "rockchip,rk3399"; ++ ++ fragment@0 { ++ target = <&spi1>; ++ __overlay__ { ++ status = "disabled"; ++ }; ++ }; ++ ++ fragment@1 { ++ target = <&uart4>; ++ __overlay__ { ++ status = "okay"; ++ }; ++ }; ++}; +diff --git a/arch/arm64/boot/dts/rockchip/overlay/rockchip-w1-gpio.dts b/arch/arm64/boot/dts/rockchip/overlay/rockchip-w1-gpio.dts +new file mode 100644 +index 000000000000..bfbc16adcc9d +--- /dev/null ++++ b/arch/arm64/boot/dts/rockchip/overlay/rockchip-w1-gpio.dts +@@ -0,0 +1,20 @@ ++// Definitions for w1-gpio module (without external pullup) ++/dts-v1/; ++/plugin/; ++ ++/ { ++ compatible = "rockchip,rk3399"; ++ ++ fragment@0 { ++ target-path = "/"; ++ __overlay__ { ++ ++ w1: onewire@0 { ++ compatible = "w1-gpio"; ++ pinctrl-names = "default"; ++ gpios = <&gpio1 4 0 0xae>; // GPIO1_A4 ++ status = "okay"; ++ }; ++ }; ++ }; ++}; +diff --git a/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4.dts b/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4.dts +new file mode 120000 +index 000000000000..aec4f1829147 +--- /dev/null ++++ b/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4.dts +@@ -0,0 +1 @@ ++rk3399-rock-pi-4b.dts +\ No newline at end of file +diff --git a/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4.dtsi b/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4.dtsi +index b28888ea9262..ac60dd522699 100644 +--- a/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4.dtsi ++++ b/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4.dtsi +@@ -36,6 +36,12 @@ + reset-gpios = <&gpio0 RK_PB2 GPIO_ACTIVE_LOW>; + }; + ++ sound { ++ compatible = "audio-graph-card"; ++ label = "rockchip,rk3399"; ++ dais = <&i2s0_p0>; ++ }; ++ + vcc12v_dcin: dc-12v { + compatible = "regulator-fixed"; + regulator-name = "vcc12v_dcin"; +@@ -74,6 +80,8 @@ + regulator-name = "vcc3v3_pcie"; + regulator-always-on; + regulator-boot-on; ++ regulator-min-microvolt = <3300000>; ++ regulator-max-microvolt = <3300000>; + vin-supply = <&vcc5v0_sys>; + }; + +@@ -128,6 +136,26 @@ + regulator-max-microvolt = <1400000>; + vin-supply = <&vcc5v0_sys>; + }; ++ ++ leds { ++ compatible = "gpio-leds"; ++ pinctrl-names = "default"; ++ pinctrl-0 = <&power_led_gpio>, <&status_led_gpio>; ++ ++ power-status { ++ label = "power"; ++ gpios = <&gpio3 RK_PD4 GPIO_ACTIVE_HIGH>; ++ linux,default-trigger = "default-on"; ++ status = "disabled"; ++ }; ++ ++ system-status { ++ label = "status"; ++ gpios = <&gpio3 RK_PD5 GPIO_ACTIVE_HIGH>; ++ linux,default-trigger = "heartbeat"; ++ }; ++ }; ++ + }; + + &cpu_l0 { +@@ -190,6 +218,10 @@ + status = "okay"; + }; + ++&hdmi_sound { ++ status = "okay"; ++}; ++ + &i2c0 { + clock-frequency = <400000>; + i2c-scl-rising-time-ns = <168>; +@@ -422,6 +454,23 @@ + i2c-scl-rising-time-ns = <300>; + i2c-scl-falling-time-ns = <15>; + status = "okay"; ++ ++ es8316: codec@11 { ++ compatible = "everest,es8316"; ++ reg = <0x11>; ++ clocks = <&cru SCLK_I2S_8CH_OUT>; ++ clock-names = "mclk"; ++ pinctrl-names = "default"; ++ pinctrl-0 = <&i2s_8ch_mclk>; ++ #sound-dai-cells = <0>; ++ ++ port { ++ es8316_p0_0: endpoint { ++ remote-endpoint = <&i2s0_p0_0>; ++ }; ++ }; ++ }; ++ + }; + + &i2c3 { +@@ -441,6 +490,15 @@ + rockchip,capture-channels = <2>; + rockchip,playback-channels = <2>; + status = "okay"; ++ ++ i2s0_p0: port { ++ i2s0_p0_0: endpoint { ++ dai-format = "i2s"; ++ mclk-fs = <256>; ++ remote-endpoint = <&es8316_p0_0>; ++ }; ++ }; ++ + }; + + &i2s1 { +@@ -462,6 +520,21 @@ + gpio1830-supply = <&vcc_3v0>; + }; + ++&pcie0 { ++ ep-gpios = <&gpio4 RK_PD3 GPIO_ACTIVE_HIGH>; ++ num-lanes = <4>; ++ max-link-speed = <1>; ++ pinctrl-names = "default"; ++ pinctrl-0 = <&pcie_clkreqnb_cpm>; ++ vpcie12v-supply = <&vcc12v_dcin>; ++ vpcie3v3-supply = <&vcc3v3_pcie>; ++ status = "okay"; ++}; ++ ++&pcie_phy { ++ status = "okay"; ++}; ++ + &pmu_io_domains { + status = "okay"; + +@@ -521,6 +594,16 @@ + }; + }; + ++ leds { ++ power_led_gpio: power_led_gpio { ++ rockchip,pins = <3 RK_PD4 RK_FUNC_GPIO &pcfg_pull_none>; ++ }; ++ ++ status_led_gpio: status_led_gpio { ++ rockchip,pins = <3 RK_PD5 RK_FUNC_GPIO &pcfg_pull_none>; ++ }; ++ }; ++ + pmic { + pmic_int_l: pmic-int-l { + rockchip,pins = <1 RK_PC5 RK_FUNC_GPIO &pcfg_pull_up>; +@@ -556,6 +639,21 @@ + rockchip,pins = <0 RK_PA3 RK_FUNC_GPIO &pcfg_pull_none>; + }; + }; ++ ++ i2s0 { ++ i2s0_8ch_bus: i2s0-8ch-bus { ++ rockchip,pins = ++ <3 24 1 &pcfg_pull_none>, ++ <3 25 1 &pcfg_pull_none>, ++ <3 26 1 &pcfg_pull_none>, ++ <3 27 1 &pcfg_pull_none>, ++ <3 31 1 &pcfg_pull_none>; ++ }; ++ ++ i2s_8ch_mclk: i2s-8ch-mclk { ++ rockchip,pins = <4 0 1 &pcfg_pull_none>; ++ }; ++ }; + }; + + &pwm2 { +@@ -596,6 +694,7 @@ + }; + + &sdhci { ++ max-frequency = <150000000>; + bus-width = <8>; + mmc-hs400-1_8v; + mmc-hs400-enhanced-strobe; +diff --git a/arch/arm64/configs/baikal_minimal_defconfig b/arch/arm64/configs/baikal_minimal_defconfig +new file mode 100644 +index 000000000000..6c3fe0e3c4db +--- /dev/null ++++ b/arch/arm64/configs/baikal_minimal_defconfig +@@ -0,0 +1,4417 @@ ++# ++# Automatically generated file; DO NOT EDIT. ++# Linux/arm64 5.6.0 Kernel Configuration ++# ++ ++# ++# Compiler: aarch64-linux-gnu-gcc (Ubuntu/Linaro 7.5.0-3ubuntu1~18.04) 7.5.0 ++# ++CONFIG_CC_IS_GCC=y ++CONFIG_GCC_VERSION=70500 ++CONFIG_CLANG_VERSION=0 ++CONFIG_CC_CAN_LINK=y ++CONFIG_CC_HAS_ASM_GOTO=y ++CONFIG_CC_HAS_ASM_INLINE=y ++CONFIG_CC_HAS_WARN_MAYBE_UNINITIALIZED=y ++CONFIG_IRQ_WORK=y ++CONFIG_BUILDTIME_TABLE_SORT=y ++CONFIG_THREAD_INFO_IN_TASK=y ++ ++# ++# General setup ++# ++CONFIG_INIT_ENV_ARG_LIMIT=32 ++# CONFIG_COMPILE_TEST is not set ++CONFIG_LOCALVERSION="" ++CONFIG_LOCALVERSION_AUTO=y ++CONFIG_BUILD_SALT="" ++CONFIG_DEFAULT_HOSTNAME="" ++CONFIG_SWAP=y ++CONFIG_SYSVIPC=y ++CONFIG_SYSVIPC_SYSCTL=y ++CONFIG_POSIX_MQUEUE=y ++CONFIG_POSIX_MQUEUE_SYSCTL=y ++CONFIG_CROSS_MEMORY_ATTACH=y ++# CONFIG_USELIB is not set ++CONFIG_AUDIT=y ++CONFIG_HAVE_ARCH_AUDITSYSCALL=y ++CONFIG_AUDITSYSCALL=y ++ ++# ++# IRQ subsystem ++# ++CONFIG_GENERIC_IRQ_PROBE=y ++CONFIG_GENERIC_IRQ_SHOW=y ++CONFIG_GENERIC_IRQ_SHOW_LEVEL=y ++CONFIG_GENERIC_IRQ_EFFECTIVE_AFF_MASK=y ++CONFIG_GENERIC_IRQ_MIGRATION=y ++CONFIG_HARDIRQS_SW_RESEND=y ++CONFIG_GENERIC_IRQ_CHIP=y ++CONFIG_IRQ_DOMAIN=y ++CONFIG_IRQ_DOMAIN_HIERARCHY=y ++CONFIG_GENERIC_MSI_IRQ=y ++CONFIG_GENERIC_MSI_IRQ_DOMAIN=y ++CONFIG_IRQ_MSI_IOMMU=y ++CONFIG_HANDLE_DOMAIN_IRQ=y ++CONFIG_IRQ_FORCED_THREADING=y ++CONFIG_SPARSE_IRQ=y ++# CONFIG_GENERIC_IRQ_DEBUGFS is not set ++# end of IRQ subsystem ++ ++CONFIG_GENERIC_IRQ_MULTI_HANDLER=y ++CONFIG_ARCH_CLOCKSOURCE_DATA=y ++CONFIG_GENERIC_TIME_VSYSCALL=y ++CONFIG_GENERIC_CLOCKEVENTS=y ++CONFIG_ARCH_HAS_TICK_BROADCAST=y ++CONFIG_GENERIC_CLOCKEVENTS_BROADCAST=y ++ ++# ++# Timers subsystem ++# ++CONFIG_TICK_ONESHOT=y ++CONFIG_NO_HZ_COMMON=y ++# CONFIG_HZ_PERIODIC is not set ++CONFIG_NO_HZ_IDLE=y ++# CONFIG_NO_HZ_FULL is not set ++# CONFIG_NO_HZ is not set ++CONFIG_HIGH_RES_TIMERS=y ++# end of Timers subsystem ++ ++# CONFIG_PREEMPT_NONE is not set ++# CONFIG_PREEMPT_VOLUNTARY is not set ++CONFIG_PREEMPT=y ++CONFIG_PREEMPT_COUNT=y ++CONFIG_PREEMPTION=y ++ ++# ++# CPU/Task time and stats accounting ++# ++CONFIG_TICK_CPU_ACCOUNTING=y ++# CONFIG_VIRT_CPU_ACCOUNTING_GEN is not set ++# CONFIG_IRQ_TIME_ACCOUNTING is not set ++CONFIG_BSD_PROCESS_ACCT=y ++CONFIG_BSD_PROCESS_ACCT_V3=y ++CONFIG_TASKSTATS=y ++CONFIG_TASK_DELAY_ACCT=y ++CONFIG_TASK_XACCT=y ++CONFIG_TASK_IO_ACCOUNTING=y ++CONFIG_PSI=y ++# CONFIG_PSI_DEFAULT_DISABLED is not set ++# end of CPU/Task time and stats accounting ++ ++CONFIG_CPU_ISOLATION=y ++ ++# ++# RCU Subsystem ++# ++CONFIG_TREE_RCU=y ++CONFIG_PREEMPT_RCU=y ++# CONFIG_RCU_EXPERT is not set ++CONFIG_SRCU=y ++CONFIG_TREE_SRCU=y ++CONFIG_TASKS_RCU=y ++CONFIG_RCU_STALL_COMMON=y ++CONFIG_RCU_NEED_SEGCBLIST=y ++# end of RCU Subsystem ++ ++CONFIG_IKCONFIG=y ++CONFIG_IKCONFIG_PROC=y ++# CONFIG_IKHEADERS is not set ++CONFIG_LOG_BUF_SHIFT=17 ++CONFIG_LOG_CPU_MAX_BUF_SHIFT=12 ++CONFIG_PRINTK_SAFE_LOG_BUF_SHIFT=13 ++CONFIG_GENERIC_SCHED_CLOCK=y ++ ++# ++# Scheduler features ++# ++# CONFIG_UCLAMP_TASK is not set ++# end of Scheduler features ++ ++CONFIG_ARCH_SUPPORTS_NUMA_BALANCING=y ++CONFIG_CC_HAS_INT128=y ++CONFIG_ARCH_SUPPORTS_INT128=y ++CONFIG_CGROUPS=y ++CONFIG_PAGE_COUNTER=y ++CONFIG_MEMCG=y ++CONFIG_MEMCG_SWAP=y ++CONFIG_MEMCG_SWAP_ENABLED=y ++CONFIG_MEMCG_KMEM=y ++CONFIG_BLK_CGROUP=y ++CONFIG_CGROUP_WRITEBACK=y ++CONFIG_CGROUP_SCHED=y ++CONFIG_FAIR_GROUP_SCHED=y ++CONFIG_CFS_BANDWIDTH=y ++# CONFIG_RT_GROUP_SCHED is not set ++CONFIG_CGROUP_PIDS=y ++# CONFIG_CGROUP_RDMA is not set ++CONFIG_CGROUP_FREEZER=y ++# CONFIG_CGROUP_HUGETLB is not set ++CONFIG_CPUSETS=y ++CONFIG_PROC_PID_CPUSET=y ++CONFIG_CGROUP_DEVICE=y ++CONFIG_CGROUP_CPUACCT=y ++CONFIG_CGROUP_PERF=y ++# CONFIG_CGROUP_BPF is not set ++# CONFIG_CGROUP_DEBUG is not set ++CONFIG_NAMESPACES=y ++CONFIG_UTS_NS=y ++CONFIG_IPC_NS=y ++CONFIG_USER_NS=y ++CONFIG_PID_NS=y ++CONFIG_NET_NS=y ++# CONFIG_CHECKPOINT_RESTORE is not set ++CONFIG_SCHED_AUTOGROUP=y ++# CONFIG_SYSFS_DEPRECATED is not set ++CONFIG_RELAY=y ++CONFIG_BLK_DEV_INITRD=y ++CONFIG_INITRAMFS_SOURCE="" ++CONFIG_RD_GZIP=y ++# CONFIG_RD_BZIP2 is not set ++CONFIG_RD_LZMA=y ++CONFIG_RD_XZ=y ++CONFIG_RD_LZO=y ++CONFIG_RD_LZ4=y ++CONFIG_BOOT_CONFIG=y ++CONFIG_CC_OPTIMIZE_FOR_PERFORMANCE=y ++# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set ++CONFIG_SYSCTL=y ++CONFIG_HAVE_UID16=y ++CONFIG_SYSCTL_EXCEPTION_TRACE=y ++CONFIG_BPF=y ++# CONFIG_EXPERT is not set ++CONFIG_UID16=y ++CONFIG_MULTIUSER=y ++CONFIG_SYSFS_SYSCALL=y ++CONFIG_FHANDLE=y ++CONFIG_POSIX_TIMERS=y ++CONFIG_PRINTK=y ++CONFIG_PRINTK_NMI=y ++CONFIG_BUG=y ++CONFIG_ELF_CORE=y ++CONFIG_BASE_FULL=y ++CONFIG_FUTEX=y ++CONFIG_FUTEX_PI=y ++CONFIG_HAVE_FUTEX_CMPXCHG=y ++CONFIG_EPOLL=y ++CONFIG_SIGNALFD=y ++CONFIG_TIMERFD=y ++CONFIG_EVENTFD=y ++CONFIG_SHMEM=y ++CONFIG_AIO=y ++CONFIG_IO_URING=y ++CONFIG_ADVISE_SYSCALLS=y ++CONFIG_MEMBARRIER=y ++CONFIG_KALLSYMS=y ++CONFIG_KALLSYMS_ALL=y ++CONFIG_KALLSYMS_BASE_RELATIVE=y ++CONFIG_BPF_SYSCALL=y ++CONFIG_ARCH_WANT_DEFAULT_BPF_JIT=y ++# CONFIG_BPF_JIT_ALWAYS_ON is not set ++CONFIG_BPF_JIT_DEFAULT_ON=y ++CONFIG_USERFAULTFD=y ++CONFIG_ARCH_HAS_MEMBARRIER_SYNC_CORE=y ++CONFIG_RSEQ=y ++# CONFIG_EMBEDDED is not set ++CONFIG_HAVE_PERF_EVENTS=y ++ ++# ++# Kernel Performance Events And Counters ++# ++CONFIG_PERF_EVENTS=y ++# CONFIG_DEBUG_PERF_USE_VMALLOC is not set ++# end of Kernel Performance Events And Counters ++ ++CONFIG_VM_EVENT_COUNTERS=y ++# CONFIG_COMPAT_BRK is not set ++CONFIG_SLAB=y ++# CONFIG_SLUB is not set ++CONFIG_SLAB_MERGE_DEFAULT=y ++# CONFIG_SLAB_FREELIST_RANDOM is not set ++# CONFIG_SHUFFLE_PAGE_ALLOCATOR is not set ++CONFIG_PROFILING=y ++CONFIG_TRACEPOINTS=y ++# end of General setup ++ ++CONFIG_ARM64=y ++CONFIG_64BIT=y ++CONFIG_MMU=y ++CONFIG_ARM64_PAGE_SHIFT=12 ++CONFIG_ARM64_CONT_SHIFT=4 ++CONFIG_ARCH_MMAP_RND_BITS_MIN=18 ++CONFIG_ARCH_MMAP_RND_BITS_MAX=33 ++CONFIG_ARCH_MMAP_RND_COMPAT_BITS_MIN=11 ++CONFIG_ARCH_MMAP_RND_COMPAT_BITS_MAX=16 ++CONFIG_STACKTRACE_SUPPORT=y ++CONFIG_ILLEGAL_POINTER_VALUE=0xdead000000000000 ++CONFIG_LOCKDEP_SUPPORT=y ++CONFIG_TRACE_IRQFLAGS_SUPPORT=y ++CONFIG_GENERIC_BUG=y ++CONFIG_GENERIC_BUG_RELATIVE_POINTERS=y ++CONFIG_GENERIC_HWEIGHT=y ++CONFIG_GENERIC_CSUM=y ++CONFIG_GENERIC_CALIBRATE_DELAY=y ++CONFIG_ZONE_DMA=y ++CONFIG_ZONE_DMA32=y ++CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y ++CONFIG_SMP=y ++CONFIG_KERNEL_MODE_NEON=y ++CONFIG_FIX_EARLYCON_MEM=y ++CONFIG_PGTABLE_LEVELS=4 ++CONFIG_ARCH_SUPPORTS_UPROBES=y ++CONFIG_ARCH_PROC_KCORE_TEXT=y ++ ++# ++# Platform selection ++# ++# CONFIG_ARCH_ACTIONS is not set ++# CONFIG_ARCH_AGILEX is not set ++# CONFIG_ARCH_SUNXI is not set ++# CONFIG_ARCH_ALPINE is not set ++CONFIG_ARCH_BAIKAL=y ++# CONFIG_ARCH_BCM2835 is not set ++# CONFIG_ARCH_BCM_IPROC is not set ++# CONFIG_ARCH_BERLIN is not set ++# CONFIG_ARCH_BITMAIN is not set ++# CONFIG_ARCH_BRCMSTB is not set ++# CONFIG_ARCH_EXYNOS is not set ++# CONFIG_ARCH_K3 is not set ++# CONFIG_ARCH_LAYERSCAPE is not set ++# CONFIG_ARCH_LG1K is not set ++# CONFIG_ARCH_HISI is not set ++# CONFIG_ARCH_MEDIATEK is not set ++# CONFIG_ARCH_MESON is not set ++# CONFIG_ARCH_MVEBU is not set ++# CONFIG_ARCH_MXC is not set ++# CONFIG_ARCH_QCOM is not set ++# CONFIG_ARCH_REALTEK is not set ++# CONFIG_ARCH_RENESAS is not set ++# CONFIG_ARCH_ROCKCHIP is not set ++# CONFIG_ARCH_S32 is not set ++# CONFIG_ARCH_SEATTLE is not set ++# CONFIG_ARCH_STRATIX10 is not set ++# CONFIG_ARCH_SYNQUACER is not set ++# CONFIG_ARCH_TEGRA is not set ++# CONFIG_ARCH_SPRD is not set ++# CONFIG_ARCH_THUNDER is not set ++# CONFIG_ARCH_THUNDER2 is not set ++# CONFIG_ARCH_UNIPHIER is not set ++# CONFIG_ARCH_VEXPRESS is not set ++# CONFIG_ARCH_XGENE is not set ++# CONFIG_ARCH_ZX is not set ++# CONFIG_ARCH_ZYNQMP is not set ++# end of Platform selection ++ ++# ++# Kernel Features ++# ++ ++# ++# ARM errata workarounds via the alternatives framework ++# ++CONFIG_ARM64_WORKAROUND_CLEAN_CACHE=y ++CONFIG_ARM64_ERRATUM_826319=y ++CONFIG_ARM64_ERRATUM_827319=y ++CONFIG_ARM64_ERRATUM_824069=y ++CONFIG_ARM64_ERRATUM_819472=y ++CONFIG_ARM64_ERRATUM_832075=y ++CONFIG_ARM64_ERRATUM_845719=y ++CONFIG_ARM64_ERRATUM_843419=y ++CONFIG_ARM64_ERRATUM_1024718=y ++CONFIG_ARM64_ERRATUM_1418040=y ++CONFIG_ARM64_WORKAROUND_SPECULATIVE_AT_VHE=y ++CONFIG_ARM64_ERRATUM_1165522=y ++CONFIG_ARM64_ERRATUM_1530923=y ++CONFIG_ARM64_ERRATUM_1286807=y ++CONFIG_ARM64_WORKAROUND_SPECULATIVE_AT_NVHE=y ++CONFIG_ARM64_ERRATUM_1319367=y ++CONFIG_ARM64_ERRATUM_1463225=y ++CONFIG_ARM64_ERRATUM_1542419=y ++CONFIG_CAVIUM_ERRATUM_22375=y ++CONFIG_CAVIUM_ERRATUM_23154=y ++CONFIG_CAVIUM_ERRATUM_27456=y ++CONFIG_CAVIUM_ERRATUM_30115=y ++CONFIG_CAVIUM_TX2_ERRATUM_219=y ++CONFIG_QCOM_FALKOR_ERRATUM_1003=y ++CONFIG_ARM64_WORKAROUND_REPEAT_TLBI=y ++CONFIG_QCOM_FALKOR_ERRATUM_1009=y ++CONFIG_QCOM_QDF2400_ERRATUM_0065=y ++CONFIG_SOCIONEXT_SYNQUACER_PREITS=y ++CONFIG_HISILICON_ERRATUM_161600802=y ++CONFIG_QCOM_FALKOR_ERRATUM_E1041=y ++CONFIG_FUJITSU_ERRATUM_010001=y ++# end of ARM errata workarounds via the alternatives framework ++ ++CONFIG_ARM64_4K_PAGES=y ++# CONFIG_ARM64_16K_PAGES is not set ++# CONFIG_ARM64_64K_PAGES is not set ++# CONFIG_ARM64_VA_BITS_39 is not set ++CONFIG_ARM64_VA_BITS_48=y ++CONFIG_ARM64_VA_BITS=48 ++CONFIG_ARM64_PA_BITS_48=y ++CONFIG_ARM64_PA_BITS=48 ++# CONFIG_CPU_BIG_ENDIAN is not set ++CONFIG_CPU_LITTLE_ENDIAN=y ++CONFIG_SCHED_MC=y ++# CONFIG_SCHED_SMT is not set ++CONFIG_NR_CPUS=8 ++CONFIG_HOTPLUG_CPU=y ++# CONFIG_NUMA is not set ++CONFIG_HOLES_IN_ZONE=y ++# CONFIG_HZ_100 is not set ++# CONFIG_HZ_250 is not set ++# CONFIG_HZ_300 is not set ++CONFIG_HZ_1000=y ++CONFIG_HZ=1000 ++CONFIG_SCHED_HRTICK=y ++CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y ++CONFIG_ARCH_SPARSEMEM_ENABLE=y ++CONFIG_ARCH_SPARSEMEM_DEFAULT=y ++CONFIG_ARCH_SELECT_MEMORY_MODEL=y ++CONFIG_ARCH_FLATMEM_ENABLE=y ++CONFIG_HAVE_ARCH_PFN_VALID=y ++CONFIG_HW_PERF_EVENTS=y ++CONFIG_SYS_SUPPORTS_HUGETLBFS=y ++CONFIG_ARCH_WANT_HUGE_PMD_SHARE=y ++CONFIG_ARCH_HAS_CACHE_LINE_SIZE=y ++CONFIG_ARCH_ENABLE_SPLIT_PMD_PTLOCK=y ++CONFIG_SECCOMP=y ++# CONFIG_PARAVIRT is not set ++# CONFIG_PARAVIRT_TIME_ACCOUNTING is not set ++CONFIG_KEXEC=y ++CONFIG_KEXEC_FILE=y ++# CONFIG_KEXEC_SIG is not set ++# CONFIG_CRASH_DUMP is not set ++# CONFIG_XEN is not set ++CONFIG_FORCE_MAX_ZONEORDER=11 ++CONFIG_UNMAP_KERNEL_AT_EL0=y ++CONFIG_HARDEN_BRANCH_PREDICTOR=y ++CONFIG_HARDEN_EL2_VECTORS=y ++CONFIG_ARM64_SSBD=y ++CONFIG_RODATA_FULL_DEFAULT_ENABLED=y ++# CONFIG_ARM64_SW_TTBR0_PAN is not set ++CONFIG_ARM64_TAGGED_ADDR_ABI=y ++CONFIG_COMPAT=y ++CONFIG_KUSER_HELPERS=y ++CONFIG_ARMV8_DEPRECATED=y ++CONFIG_SWP_EMULATION=y ++CONFIG_CP15_BARRIER_EMULATION=y ++CONFIG_SETEND_EMULATION=y ++ ++# ++# ARMv8.1 architectural features ++# ++CONFIG_ARM64_HW_AFDBM=y ++CONFIG_ARM64_PAN=y ++CONFIG_ARM64_LSE_ATOMICS=y ++CONFIG_ARM64_USE_LSE_ATOMICS=y ++CONFIG_ARM64_VHE=y ++# end of ARMv8.1 architectural features ++ ++# ++# ARMv8.2 architectural features ++# ++CONFIG_ARM64_UAO=y ++# CONFIG_ARM64_PMEM is not set ++CONFIG_ARM64_RAS_EXTN=y ++CONFIG_ARM64_CNP=y ++# end of ARMv8.2 architectural features ++ ++# ++# ARMv8.3 architectural features ++# ++CONFIG_ARM64_PTR_AUTH=y ++# end of ARMv8.3 architectural features ++ ++# ++# ARMv8.5 architectural features ++# ++CONFIG_ARM64_E0PD=y ++CONFIG_ARCH_RANDOM=y ++# end of ARMv8.5 architectural features ++ ++CONFIG_ARM64_SVE=y ++CONFIG_ARM64_MODULE_PLTS=y ++# CONFIG_ARM64_PSEUDO_NMI is not set ++# CONFIG_RANDOMIZE_BASE is not set ++# end of Kernel Features ++ ++# ++# Boot options ++# ++CONFIG_CMDLINE="" ++CONFIG_EFI_STUB=y ++CONFIG_EFI=y ++CONFIG_DMI=y ++# end of Boot options ++ ++CONFIG_SYSVIPC_COMPAT=y ++CONFIG_ARCH_ENABLE_HUGEPAGE_MIGRATION=y ++ ++# ++# Power management options ++# ++CONFIG_SUSPEND=y ++CONFIG_SUSPEND_FREEZER=y ++CONFIG_HIBERNATE_CALLBACKS=y ++CONFIG_HIBERNATION=y ++CONFIG_PM_STD_PARTITION="" ++CONFIG_PM_SLEEP=y ++CONFIG_PM_SLEEP_SMP=y ++# CONFIG_PM_AUTOSLEEP is not set ++# CONFIG_PM_WAKELOCKS is not set ++CONFIG_PM=y ++# CONFIG_PM_DEBUG is not set ++CONFIG_PM_CLK=y ++# CONFIG_WQ_POWER_EFFICIENT_DEFAULT is not set ++CONFIG_CPU_PM=y ++# CONFIG_ENERGY_MODEL is not set ++CONFIG_ARCH_HIBERNATION_POSSIBLE=y ++CONFIG_ARCH_HIBERNATION_HEADER=y ++CONFIG_ARCH_SUSPEND_POSSIBLE=y ++# end of Power management options ++ ++# ++# CPU Power Management ++# ++ ++# ++# CPU Idle ++# ++CONFIG_CPU_IDLE=y ++CONFIG_CPU_IDLE_MULTIPLE_DRIVERS=y ++CONFIG_CPU_IDLE_GOV_LADDER=y ++CONFIG_CPU_IDLE_GOV_MENU=y ++# CONFIG_CPU_IDLE_GOV_TEO is not set ++CONFIG_DT_IDLE_STATES=y ++ ++# ++# ARM CPU Idle Drivers ++# ++CONFIG_ARM_CPUIDLE=y ++# CONFIG_ARM_PSCI_CPUIDLE is not set ++# end of ARM CPU Idle Drivers ++# end of CPU Idle ++ ++# ++# CPU Frequency scaling ++# ++CONFIG_CPU_FREQ=y ++CONFIG_CPU_FREQ_GOV_ATTR_SET=y ++CONFIG_CPU_FREQ_GOV_COMMON=y ++# CONFIG_CPU_FREQ_STAT is not set ++# CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE is not set ++# CONFIG_CPU_FREQ_DEFAULT_GOV_POWERSAVE is not set ++# CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE is not set ++# CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND is not set ++# CONFIG_CPU_FREQ_DEFAULT_GOV_CONSERVATIVE is not set ++CONFIG_CPU_FREQ_DEFAULT_GOV_SCHEDUTIL=y ++CONFIG_CPU_FREQ_GOV_PERFORMANCE=y ++CONFIG_CPU_FREQ_GOV_POWERSAVE=m ++CONFIG_CPU_FREQ_GOV_USERSPACE=m ++CONFIG_CPU_FREQ_GOV_ONDEMAND=m ++CONFIG_CPU_FREQ_GOV_CONSERVATIVE=m ++CONFIG_CPU_FREQ_GOV_SCHEDUTIL=y ++ ++# ++# CPU frequency scaling drivers ++# ++CONFIG_CPUFREQ_DT=m ++CONFIG_CPUFREQ_DT_PLATDEV=y ++# CONFIG_QORIQ_CPUFREQ is not set ++# end of CPU Frequency scaling ++# end of CPU Power Management ++ ++# ++# Firmware Drivers ++# ++# CONFIG_ARM_SCMI_PROTOCOL is not set ++# CONFIG_ARM_SCPI_PROTOCOL is not set ++# CONFIG_ARM_SDE_INTERFACE is not set ++CONFIG_DMIID=y ++# CONFIG_DMI_SYSFS is not set ++# CONFIG_FW_CFG_SYSFS is not set ++CONFIG_HAVE_ARM_SMCCC=y ++CONFIG_ARM_PSCI_FW=y ++# CONFIG_ARM_PSCI_CHECKER is not set ++# CONFIG_GOOGLE_FIRMWARE is not set ++ ++# ++# EFI (Extensible Firmware Interface) Support ++# ++CONFIG_EFI_VARS=y ++CONFIG_EFI_ESRT=y ++CONFIG_EFI_VARS_PSTORE=y ++# CONFIG_EFI_VARS_PSTORE_DEFAULT_DISABLE is not set ++CONFIG_EFI_PARAMS_FROM_FDT=y ++CONFIG_EFI_RUNTIME_WRAPPERS=y ++CONFIG_EFI_GENERIC_STUB=y ++CONFIG_EFI_ARMSTUB_DTB_LOADER=y ++CONFIG_EFI_GENERIC_STUB_INITRD_CMDLINE_LOADER=y ++CONFIG_EFI_BOOTLOADER_CONTROL=y ++# CONFIG_EFI_CAPSULE_LOADER is not set ++# CONFIG_EFI_TEST is not set ++# CONFIG_RESET_ATTACK_MITIGATION is not set ++# CONFIG_EFI_DISABLE_PCI_DMA is not set ++# end of EFI (Extensible Firmware Interface) Support ++ ++CONFIG_EFI_EARLYCON=y ++ ++# ++# Tegra firmware driver ++# ++# end of Tegra firmware driver ++# end of Firmware Drivers ++ ++CONFIG_ARCH_SUPPORTS_ACPI=y ++# CONFIG_ACPI is not set ++# CONFIG_VIRTUALIZATION is not set ++# CONFIG_ARM64_CRYPTO is not set ++ ++# ++# General architecture-dependent options ++# ++CONFIG_CRASH_CORE=y ++CONFIG_KEXEC_CORE=y ++CONFIG_KPROBES=y ++CONFIG_JUMP_LABEL=y ++CONFIG_STATIC_KEYS_SELFTEST=y ++CONFIG_UPROBES=y ++CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS=y ++CONFIG_KRETPROBES=y ++CONFIG_HAVE_KPROBES=y ++CONFIG_HAVE_KRETPROBES=y ++CONFIG_HAVE_FUNCTION_ERROR_INJECTION=y ++CONFIG_HAVE_NMI=y ++CONFIG_HAVE_ARCH_TRACEHOOK=y ++CONFIG_HAVE_DMA_CONTIGUOUS=y ++CONFIG_GENERIC_SMP_IDLE_THREAD=y ++CONFIG_GENERIC_IDLE_POLL_SETUP=y ++CONFIG_ARCH_HAS_FORTIFY_SOURCE=y ++CONFIG_ARCH_HAS_KEEPINITRD=y ++CONFIG_ARCH_HAS_SET_MEMORY=y ++CONFIG_ARCH_HAS_SET_DIRECT_MAP=y ++CONFIG_HAVE_ARCH_THREAD_STRUCT_WHITELIST=y ++CONFIG_HAVE_ASM_MODVERSIONS=y ++CONFIG_HAVE_REGS_AND_STACK_ACCESS_API=y ++CONFIG_HAVE_RSEQ=y ++CONFIG_HAVE_FUNCTION_ARG_ACCESS_API=y ++CONFIG_HAVE_CLK=y ++CONFIG_HAVE_HW_BREAKPOINT=y ++CONFIG_HAVE_PERF_REGS=y ++CONFIG_HAVE_PERF_USER_STACK_DUMP=y ++CONFIG_HAVE_ARCH_JUMP_LABEL=y ++CONFIG_HAVE_ARCH_JUMP_LABEL_RELATIVE=y ++CONFIG_MMU_GATHER_TABLE_FREE=y ++CONFIG_MMU_GATHER_RCU_TABLE_FREE=y ++CONFIG_ARCH_HAVE_NMI_SAFE_CMPXCHG=y ++CONFIG_HAVE_CMPXCHG_LOCAL=y ++CONFIG_HAVE_CMPXCHG_DOUBLE=y ++CONFIG_ARCH_WANT_COMPAT_IPC_PARSE_VERSION=y ++CONFIG_HAVE_ARCH_SECCOMP_FILTER=y ++CONFIG_SECCOMP_FILTER=y ++CONFIG_HAVE_ARCH_STACKLEAK=y ++CONFIG_HAVE_STACKPROTECTOR=y ++CONFIG_CC_HAS_STACKPROTECTOR_NONE=y ++CONFIG_STACKPROTECTOR=y ++CONFIG_STACKPROTECTOR_STRONG=y ++CONFIG_HAVE_CONTEXT_TRACKING=y ++CONFIG_HAVE_VIRT_CPU_ACCOUNTING_GEN=y ++CONFIG_HAVE_IRQ_TIME_ACCOUNTING=y ++CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE=y ++CONFIG_HAVE_ARCH_HUGE_VMAP=y ++CONFIG_HAVE_MOD_ARCH_SPECIFIC=y ++CONFIG_MODULES_USE_ELF_RELA=y ++CONFIG_ARCH_HAS_ELF_RANDOMIZE=y ++CONFIG_HAVE_ARCH_MMAP_RND_BITS=y ++CONFIG_ARCH_MMAP_RND_BITS=18 ++CONFIG_HAVE_ARCH_MMAP_RND_COMPAT_BITS=y ++CONFIG_ARCH_MMAP_RND_COMPAT_BITS=11 ++CONFIG_ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT=y ++CONFIG_HAVE_COPY_THREAD_TLS=y ++CONFIG_CLONE_BACKWARDS=y ++CONFIG_OLD_SIGSUSPEND3=y ++CONFIG_COMPAT_OLD_SIGACTION=y ++CONFIG_COMPAT_32BIT_TIME=y ++CONFIG_HAVE_ARCH_VMAP_STACK=y ++CONFIG_VMAP_STACK=y ++CONFIG_ARCH_HAS_STRICT_KERNEL_RWX=y ++CONFIG_STRICT_KERNEL_RWX=y ++CONFIG_ARCH_HAS_STRICT_MODULE_RWX=y ++CONFIG_STRICT_MODULE_RWX=y ++CONFIG_HAVE_ARCH_PREL32_RELOCATIONS=y ++CONFIG_ARCH_USE_MEMREMAP_PROT=y ++# CONFIG_LOCK_EVENT_COUNTS is not set ++ ++# ++# GCOV-based kernel profiling ++# ++# CONFIG_GCOV_KERNEL is not set ++CONFIG_ARCH_HAS_GCOV_PROFILE_ALL=y ++# end of GCOV-based kernel profiling ++ ++CONFIG_PLUGIN_HOSTCC="" ++CONFIG_HAVE_GCC_PLUGINS=y ++# end of General architecture-dependent options ++ ++CONFIG_RT_MUTEXES=y ++CONFIG_BASE_SMALL=0 ++CONFIG_MODULES=y ++# CONFIG_MODULE_FORCE_LOAD is not set ++CONFIG_MODULE_UNLOAD=y ++# CONFIG_MODULE_FORCE_UNLOAD is not set ++# CONFIG_MODVERSIONS is not set ++# CONFIG_MODULE_SRCVERSION_ALL is not set ++# CONFIG_MODULE_SIG is not set ++CONFIG_MODULE_COMPRESS=y ++#CONFIG_MODULE_COMPRESS_GZIP is not set ++CONFIG_MODULE_COMPRESS_XZ=y ++# CONFIG_MODULE_ALLOW_MISSING_NAMESPACE_IMPORTS is not set ++# CONFIG_UNUSED_SYMBOLS is not set ++# CONFIG_TRIM_UNUSED_KSYMS is not set ++CONFIG_MODULES_TREE_LOOKUP=y ++CONFIG_BLOCK=y ++CONFIG_BLK_RQ_ALLOC_TIME=y ++CONFIG_BLK_SCSI_REQUEST=y ++CONFIG_BLK_CGROUP_RWSTAT=y ++CONFIG_BLK_DEV_BSG=y ++CONFIG_BLK_DEV_BSGLIB=y ++# CONFIG_BLK_DEV_INTEGRITY is not set ++# CONFIG_BLK_DEV_ZONED is not set ++CONFIG_BLK_DEV_THROTTLING=y ++# CONFIG_BLK_DEV_THROTTLING_LOW is not set ++# CONFIG_BLK_CMDLINE_PARSER is not set ++CONFIG_BLK_WBT=y ++CONFIG_BLK_CGROUP_IOLATENCY=y ++CONFIG_BLK_CGROUP_IOCOST=y ++CONFIG_BLK_WBT_MQ=y ++# CONFIG_BLK_DEBUG_FS is not set ++# CONFIG_BLK_SED_OPAL is not set ++ ++# ++# Partition Types ++# ++CONFIG_PARTITION_ADVANCED=y ++# CONFIG_ACORN_PARTITION is not set ++# CONFIG_AIX_PARTITION is not set ++# CONFIG_OSF_PARTITION is not set ++# CONFIG_AMIGA_PARTITION is not set ++# CONFIG_ATARI_PARTITION is not set ++# CONFIG_MAC_PARTITION is not set ++CONFIG_MSDOS_PARTITION=y ++# CONFIG_BSD_DISKLABEL is not set ++# CONFIG_MINIX_SUBPARTITION is not set ++# CONFIG_SOLARIS_X86_PARTITION is not set ++# CONFIG_UNIXWARE_DISKLABEL is not set ++# CONFIG_LDM_PARTITION is not set ++# CONFIG_SGI_PARTITION is not set ++# CONFIG_ULTRIX_PARTITION is not set ++# CONFIG_SUN_PARTITION is not set ++# CONFIG_KARMA_PARTITION is not set ++CONFIG_EFI_PARTITION=y ++# CONFIG_SYSV68_PARTITION is not set ++# CONFIG_CMDLINE_PARTITION is not set ++# end of Partition Types ++ ++CONFIG_BLOCK_COMPAT=y ++CONFIG_BLK_MQ_PCI=y ++CONFIG_BLK_PM=y ++ ++# ++# IO Schedulers ++# ++CONFIG_MQ_IOSCHED_DEADLINE=y ++CONFIG_MQ_IOSCHED_KYBER=y ++CONFIG_IOSCHED_BFQ=y ++CONFIG_BFQ_GROUP_IOSCHED=y ++# CONFIG_BFQ_CGROUP_DEBUG is not set ++# end of IO Schedulers ++ ++CONFIG_UNINLINE_SPIN_UNLOCK=y ++CONFIG_ARCH_SUPPORTS_ATOMIC_RMW=y ++CONFIG_MUTEX_SPIN_ON_OWNER=y ++CONFIG_RWSEM_SPIN_ON_OWNER=y ++CONFIG_LOCK_SPIN_ON_OWNER=y ++CONFIG_ARCH_USE_QUEUED_SPINLOCKS=y ++CONFIG_QUEUED_SPINLOCKS=y ++CONFIG_ARCH_USE_QUEUED_RWLOCKS=y ++CONFIG_QUEUED_RWLOCKS=y ++CONFIG_ARCH_HAS_SYSCALL_WRAPPER=y ++CONFIG_FREEZER=y ++ ++# ++# Executable file formats ++# ++CONFIG_BINFMT_ELF=y ++CONFIG_COMPAT_BINFMT_ELF=y ++CONFIG_ELFCORE=y ++CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS=y ++CONFIG_BINFMT_SCRIPT=y ++CONFIG_BINFMT_MISC=m ++CONFIG_COREDUMP=y ++# end of Executable file formats ++ ++# ++# Memory Management options ++# ++CONFIG_SELECT_MEMORY_MODEL=y ++# CONFIG_FLATMEM_MANUAL is not set ++CONFIG_SPARSEMEM_MANUAL=y ++CONFIG_SPARSEMEM=y ++CONFIG_HAVE_MEMORY_PRESENT=y ++CONFIG_SPARSEMEM_EXTREME=y ++CONFIG_SPARSEMEM_VMEMMAP_ENABLE=y ++CONFIG_SPARSEMEM_VMEMMAP=y ++CONFIG_HAVE_FAST_GUP=y ++CONFIG_ARCH_KEEP_MEMBLOCK=y ++CONFIG_MEMORY_ISOLATION=y ++# CONFIG_MEMORY_HOTPLUG is not set ++CONFIG_SPLIT_PTLOCK_CPUS=4 ++CONFIG_COMPACTION=y ++CONFIG_MIGRATION=y ++CONFIG_CONTIG_ALLOC=y ++CONFIG_PHYS_ADDR_T_64BIT=y ++CONFIG_BOUNCE=y ++CONFIG_KSM=y ++CONFIG_DEFAULT_MMAP_MIN_ADDR=4096 ++CONFIG_ARCH_SUPPORTS_MEMORY_FAILURE=y ++# CONFIG_MEMORY_FAILURE is not set ++CONFIG_TRANSPARENT_HUGEPAGE=y ++# CONFIG_TRANSPARENT_HUGEPAGE_ALWAYS is not set ++CONFIG_TRANSPARENT_HUGEPAGE_MADVISE=y ++CONFIG_TRANSPARENT_HUGE_PAGECACHE=y ++# CONFIG_CLEANCACHE is not set ++CONFIG_FRONTSWAP=y ++CONFIG_CMA=y ++# CONFIG_CMA_DEBUG is not set ++# CONFIG_CMA_DEBUGFS is not set ++CONFIG_CMA_AREAS=7 ++CONFIG_ZSWAP=y ++CONFIG_ZPOOL=y ++CONFIG_ZBUD=m ++CONFIG_Z3FOLD=m ++CONFIG_ZSMALLOC=m ++# CONFIG_PGTABLE_MAPPING is not set ++# CONFIG_ZSMALLOC_STAT is not set ++CONFIG_GENERIC_EARLY_IOREMAP=y ++# CONFIG_DEFERRED_STRUCT_PAGE_INIT is not set ++# CONFIG_IDLE_PAGE_TRACKING is not set ++CONFIG_ARCH_HAS_PTE_DEVMAP=y ++# CONFIG_PERCPU_STATS is not set ++# CONFIG_GUP_BENCHMARK is not set ++# CONFIG_READ_ONLY_THP_FOR_FS is not set ++CONFIG_ARCH_HAS_PTE_SPECIAL=y ++# end of Memory Management options ++ ++CONFIG_NET=y ++ ++# ++# Networking options ++# ++CONFIG_PACKET=y ++CONFIG_PACKET_DIAG=m ++CONFIG_UNIX=y ++CONFIG_UNIX_SCM=y ++CONFIG_UNIX_DIAG=m ++# CONFIG_TLS is not set ++# CONFIG_XFRM_USER is not set ++# CONFIG_NET_KEY is not set ++# CONFIG_XDP_SOCKETS is not set ++CONFIG_INET=y ++CONFIG_IP_MULTICAST=y ++# CONFIG_IP_ADVANCED_ROUTER is not set ++# CONFIG_IP_PNP is not set ++# CONFIG_NET_IPIP is not set ++# CONFIG_NET_IPGRE_DEMUX is not set ++CONFIG_NET_IP_TUNNEL=m ++# CONFIG_IP_MROUTE is not set ++CONFIG_SYN_COOKIES=y ++# CONFIG_NET_IPVTI is not set ++# CONFIG_NET_FOU is not set ++# CONFIG_NET_FOU_IP_TUNNELS is not set ++# CONFIG_INET_AH is not set ++# CONFIG_INET_ESP is not set ++# CONFIG_INET_IPCOMP is not set ++CONFIG_INET_TUNNEL=m ++CONFIG_INET_DIAG=m ++CONFIG_INET_TCP_DIAG=m ++CONFIG_INET_UDP_DIAG=m ++CONFIG_INET_RAW_DIAG=m ++CONFIG_INET_DIAG_DESTROY=y ++# CONFIG_TCP_CONG_ADVANCED is not set ++CONFIG_TCP_CONG_CUBIC=y ++CONFIG_DEFAULT_TCP_CONG="cubic" ++# CONFIG_TCP_MD5SIG is not set ++CONFIG_IPV6=m ++CONFIG_IPV6_ROUTER_PREF=y ++CONFIG_IPV6_ROUTE_INFO=y ++CONFIG_IPV6_OPTIMISTIC_DAD=y ++# CONFIG_INET6_AH is not set ++# CONFIG_INET6_ESP is not set ++# CONFIG_INET6_IPCOMP is not set ++# CONFIG_IPV6_MIP6 is not set ++CONFIG_INET6_TUNNEL=m ++# CONFIG_IPV6_VTI is not set ++CONFIG_IPV6_SIT=m ++CONFIG_IPV6_SIT_6RD=y ++CONFIG_IPV6_NDISC_NODETYPE=y ++CONFIG_IPV6_TUNNEL=m ++# CONFIG_IPV6_MULTIPLE_TABLES is not set ++# CONFIG_IPV6_MROUTE is not set ++# CONFIG_IPV6_SEG6_LWTUNNEL is not set ++# CONFIG_IPV6_SEG6_HMAC is not set ++# CONFIG_MPTCP is not set ++# CONFIG_NETWORK_SECMARK is not set ++CONFIG_NET_PTP_CLASSIFY=y ++# CONFIG_NETWORK_PHY_TIMESTAMPING is not set ++# CONFIG_NETFILTER is not set ++# CONFIG_BPFILTER is not set ++# CONFIG_IP_DCCP is not set ++# CONFIG_IP_SCTP is not set ++# CONFIG_RDS is not set ++# CONFIG_TIPC is not set ++# CONFIG_ATM is not set ++# CONFIG_L2TP is not set ++CONFIG_STP=m ++CONFIG_GARP=m ++CONFIG_MRP=m ++CONFIG_BRIDGE=m ++CONFIG_BRIDGE_IGMP_SNOOPING=y ++CONFIG_BRIDGE_VLAN_FILTERING=y ++CONFIG_HAVE_NET_DSA=y ++# CONFIG_NET_DSA is not set ++CONFIG_VLAN_8021Q=m ++CONFIG_VLAN_8021Q_GVRP=y ++CONFIG_VLAN_8021Q_MVRP=y ++# CONFIG_DECNET is not set ++CONFIG_LLC=m ++# CONFIG_LLC2 is not set ++# CONFIG_ATALK is not set ++# CONFIG_X25 is not set ++# CONFIG_LAPB is not set ++# CONFIG_PHONET is not set ++# CONFIG_6LOWPAN is not set ++# CONFIG_IEEE802154 is not set ++# CONFIG_NET_SCHED is not set ++# CONFIG_DCB is not set ++# CONFIG_DNS_RESOLVER is not set ++# CONFIG_BATMAN_ADV is not set ++# CONFIG_OPENVSWITCH is not set ++# CONFIG_VSOCKETS is not set ++CONFIG_NETLINK_DIAG=m ++# CONFIG_MPLS is not set ++# CONFIG_NET_NSH is not set ++# CONFIG_HSR is not set ++# CONFIG_NET_SWITCHDEV is not set ++# CONFIG_NET_L3_MASTER_DEV is not set ++# CONFIG_NET_NCSI is not set ++CONFIG_RPS=y ++CONFIG_RFS_ACCEL=y ++CONFIG_XPS=y ++# CONFIG_CGROUP_NET_PRIO is not set ++# CONFIG_CGROUP_NET_CLASSID is not set ++CONFIG_NET_RX_BUSY_POLL=y ++CONFIG_BQL=y ++CONFIG_BPF_JIT=y ++CONFIG_NET_FLOW_LIMIT=y ++ ++# ++# Network testing ++# ++# CONFIG_NET_PKTGEN is not set ++# CONFIG_NET_DROP_MONITOR is not set ++# end of Network testing ++# end of Networking options ++ ++# CONFIG_HAMRADIO is not set ++# CONFIG_CAN is not set ++# CONFIG_BT is not set ++# CONFIG_AF_RXRPC is not set ++# CONFIG_AF_KCM is not set ++# CONFIG_WIRELESS is not set ++# CONFIG_WIMAX is not set ++# CONFIG_RFKILL is not set ++# CONFIG_NET_9P is not set ++# CONFIG_CAIF is not set ++# CONFIG_CEPH_LIB is not set ++# CONFIG_NFC is not set ++# CONFIG_PSAMPLE is not set ++# CONFIG_NET_IFE is not set ++# CONFIG_LWTUNNEL is not set ++CONFIG_DST_CACHE=y ++CONFIG_GRO_CELLS=y ++CONFIG_PAGE_POOL=y ++# CONFIG_FAILOVER is not set ++CONFIG_ETHTOOL_NETLINK=y ++CONFIG_HAVE_EBPF_JIT=y ++ ++# ++# Device Drivers ++# ++CONFIG_ARM_AMBA=y ++CONFIG_HAVE_PCI=y ++CONFIG_PCI=y ++CONFIG_PCI_DOMAINS=y ++CONFIG_PCI_DOMAINS_GENERIC=y ++CONFIG_PCI_SYSCALL=y ++CONFIG_PCIEPORTBUS=y ++CONFIG_HOTPLUG_PCI_PCIE=y ++CONFIG_PCIEAER=y ++# CONFIG_PCIEAER_INJECT is not set ++CONFIG_PCIE_ECRC=y ++CONFIG_PCIEASPM=y ++CONFIG_PCIEASPM_DEFAULT=y ++# CONFIG_PCIEASPM_POWERSAVE is not set ++# CONFIG_PCIEASPM_POWER_SUPERSAVE is not set ++# CONFIG_PCIEASPM_PERFORMANCE is not set ++CONFIG_PCIE_PME=y ++# CONFIG_PCIE_DPC is not set ++CONFIG_PCIE_PTM=y ++# CONFIG_PCIE_BW is not set ++CONFIG_PCI_MSI=y ++CONFIG_PCI_MSI_IRQ_DOMAIN=y ++CONFIG_PCI_QUIRKS=y ++# CONFIG_PCI_DEBUG is not set ++CONFIG_PCI_REALLOC_ENABLE_AUTO=y ++CONFIG_PCI_STUB=m ++# CONFIG_PCI_PF_STUB is not set ++CONFIG_PCI_ATS=y ++CONFIG_PCI_IOV=y ++CONFIG_PCI_PRI=y ++CONFIG_PCI_PASID=y ++CONFIG_PCI_LABEL=y ++CONFIG_HOTPLUG_PCI=y ++# CONFIG_HOTPLUG_PCI_CPCI is not set ++# CONFIG_HOTPLUG_PCI_SHPC is not set ++ ++# ++# PCI controller drivers ++# ++# CONFIG_PCI_FTPCI100 is not set ++# CONFIG_PCI_HOST_GENERIC is not set ++# CONFIG_PCIE_XILINX is not set ++# CONFIG_PCI_XGENE is not set ++# CONFIG_PCIE_ALTERA is not set ++# CONFIG_PCI_HOST_THUNDER_PEM is not set ++# CONFIG_PCI_HOST_THUNDER_ECAM is not set ++CONFIG_PCI_BAIKAL=m ++ ++# ++# DesignWare PCI Core Support ++# ++CONFIG_PCIE_DW=y ++CONFIG_PCIE_DW_HOST=y ++CONFIG_PCIE_DW_PLAT=y ++CONFIG_PCIE_DW_PLAT_HOST=y ++# CONFIG_PCIE_DW_PLAT_EP is not set ++# CONFIG_PCI_HISI is not set ++# CONFIG_PCIE_KIRIN is not set ++# CONFIG_PCI_MESON is not set ++# CONFIG_PCIE_AL is not set ++# end of DesignWare PCI Core Support ++ ++# ++# Cadence PCIe controllers support ++# ++# CONFIG_PCIE_CADENCE_PLAT_HOST is not set ++# CONFIG_PCIE_CADENCE_PLAT_EP is not set ++# end of Cadence PCIe controllers support ++# end of PCI controller drivers ++ ++# ++# PCI Endpoint ++# ++CONFIG_PCI_ENDPOINT=y ++# CONFIG_PCI_ENDPOINT_CONFIGFS is not set ++# CONFIG_PCI_EPF_TEST is not set ++# end of PCI Endpoint ++ ++# ++# PCI switch controller drivers ++# ++# CONFIG_PCI_SW_SWITCHTEC is not set ++# end of PCI switch controller drivers ++ ++# CONFIG_PCCARD is not set ++# CONFIG_RAPIDIO is not set ++ ++# ++# Generic Driver Options ++# ++# CONFIG_UEVENT_HELPER is not set ++CONFIG_DEVTMPFS=y ++CONFIG_DEVTMPFS_MOUNT=y ++CONFIG_STANDALONE=y ++CONFIG_PREVENT_FIRMWARE_BUILD=y ++ ++# ++# Firmware loader ++# ++CONFIG_FW_LOADER=y ++CONFIG_FW_LOADER_PAGED_BUF=y ++CONFIG_EXTRA_FIRMWARE="" ++# CONFIG_FW_LOADER_USER_HELPER is not set ++CONFIG_FW_LOADER_COMPRESS=y ++CONFIG_FW_CACHE=y ++# end of Firmware loader ++ ++CONFIG_ALLOW_DEV_COREDUMP=y ++# CONFIG_DEBUG_DRIVER is not set ++# CONFIG_DEBUG_DEVRES is not set ++# CONFIG_DEBUG_TEST_DRIVER_REMOVE is not set ++# CONFIG_TEST_ASYNC_DRIVER_PROBE is not set ++CONFIG_GENERIC_CPU_AUTOPROBE=y ++CONFIG_GENERIC_CPU_VULNERABILITIES=y ++CONFIG_REGMAP=y ++CONFIG_REGMAP_I2C=y ++CONFIG_REGMAP_SPI=y ++CONFIG_REGMAP_MMIO=y ++CONFIG_DMA_SHARED_BUFFER=y ++# CONFIG_DMA_FENCE_TRACE is not set ++CONFIG_GENERIC_ARCH_TOPOLOGY=y ++# end of Generic Driver Options ++ ++# ++# Bus devices ++# ++# CONFIG_BRCMSTB_GISB_ARB is not set ++# CONFIG_MOXTET is not set ++# CONFIG_SIMPLE_PM_BUS is not set ++# CONFIG_VEXPRESS_CONFIG is not set ++# end of Bus devices ++ ++CONFIG_CONNECTOR=m ++# CONFIG_GNSS is not set ++CONFIG_MTD=m ++# CONFIG_MTD_TESTS is not set ++ ++# ++# Partition parsers ++# ++# CONFIG_MTD_AR7_PARTS is not set ++CONFIG_MTD_CMDLINE_PARTS=m ++CONFIG_MTD_OF_PARTS=m ++# CONFIG_MTD_AFS_PARTS is not set ++# CONFIG_MTD_REDBOOT_PARTS is not set ++# end of Partition parsers ++ ++# ++# User Modules And Translation Layers ++# ++CONFIG_MTD_BLKDEVS=m ++CONFIG_MTD_BLOCK=m ++# CONFIG_MTD_BLOCK_RO is not set ++# CONFIG_FTL is not set ++# CONFIG_NFTL is not set ++# CONFIG_INFTL is not set ++# CONFIG_RFD_FTL is not set ++# CONFIG_SSFDC is not set ++# CONFIG_SM_FTL is not set ++# CONFIG_MTD_OOPS is not set ++# CONFIG_MTD_SWAP is not set ++# CONFIG_MTD_PARTITIONED_MASTER is not set ++ ++# ++# RAM/ROM/Flash chip drivers ++# ++# CONFIG_MTD_CFI is not set ++CONFIG_MTD_JEDECPROBE=m ++CONFIG_MTD_GEN_PROBE=m ++# CONFIG_MTD_CFI_ADV_OPTIONS is not set ++CONFIG_MTD_MAP_BANK_WIDTH_1=y ++CONFIG_MTD_MAP_BANK_WIDTH_2=y ++CONFIG_MTD_MAP_BANK_WIDTH_4=y ++CONFIG_MTD_CFI_I1=y ++CONFIG_MTD_CFI_I2=y ++# CONFIG_MTD_CFI_INTELEXT is not set ++# CONFIG_MTD_CFI_AMDSTD is not set ++# CONFIG_MTD_CFI_STAA is not set ++CONFIG_MTD_CFI_UTIL=m ++# CONFIG_MTD_RAM is not set ++# CONFIG_MTD_ROM is not set ++# CONFIG_MTD_ABSENT is not set ++# end of RAM/ROM/Flash chip drivers ++ ++# ++# Mapping drivers for chip access ++# ++# CONFIG_MTD_COMPLEX_MAPPINGS is not set ++# CONFIG_MTD_PHYSMAP is not set ++# CONFIG_MTD_INTEL_VR_NOR is not set ++# CONFIG_MTD_PLATRAM is not set ++# end of Mapping drivers for chip access ++ ++# ++# Self-contained MTD device drivers ++# ++# CONFIG_MTD_PMC551 is not set ++# CONFIG_MTD_DATAFLASH is not set ++# CONFIG_MTD_MCHP23K256 is not set ++# CONFIG_MTD_SST25L is not set ++# CONFIG_MTD_SLRAM is not set ++# CONFIG_MTD_PHRAM is not set ++# CONFIG_MTD_MTDRAM is not set ++# CONFIG_MTD_BLOCK2MTD is not set ++ ++# ++# Disk-On-Chip Device Drivers ++# ++# CONFIG_MTD_DOCG3 is not set ++# end of Self-contained MTD device drivers ++ ++# CONFIG_MTD_ONENAND is not set ++# CONFIG_MTD_RAW_NAND is not set ++# CONFIG_MTD_SPI_NAND is not set ++ ++# ++# LPDDR & LPDDR2 PCM memory drivers ++# ++# CONFIG_MTD_LPDDR is not set ++# end of LPDDR & LPDDR2 PCM memory drivers ++ ++CONFIG_MTD_SPI_NOR=m ++CONFIG_MTD_SPI_NOR_USE_4K_SECTORS=y ++# CONFIG_SPI_CADENCE_QUADSPI is not set ++# CONFIG_SPI_MTK_QUADSPI is not set ++# CONFIG_MTD_UBI is not set ++# CONFIG_MTD_HYPERBUS is not set ++CONFIG_DTC=y ++CONFIG_OF=y ++# CONFIG_OF_UNITTEST is not set ++CONFIG_OF_FLATTREE=y ++CONFIG_OF_EARLY_FLATTREE=y ++CONFIG_OF_KOBJ=y ++CONFIG_OF_ADDRESS=y ++CONFIG_OF_IRQ=y ++CONFIG_OF_NET=y ++CONFIG_OF_MDIO=y ++CONFIG_OF_RESERVED_MEM=y ++# CONFIG_OF_OVERLAY is not set ++# CONFIG_PARPORT is not set ++CONFIG_BLK_DEV=y ++# CONFIG_BLK_DEV_NULL_BLK is not set ++CONFIG_CDROM=m ++# CONFIG_BLK_DEV_PCIESSD_MTIP32XX is not set ++CONFIG_ZRAM=m ++# CONFIG_ZRAM_WRITEBACK is not set ++# CONFIG_ZRAM_MEMORY_TRACKING is not set ++# CONFIG_BLK_DEV_UMEM is not set ++CONFIG_BLK_DEV_LOOP=y ++CONFIG_BLK_DEV_LOOP_MIN_COUNT=8 ++# CONFIG_BLK_DEV_CRYPTOLOOP is not set ++# CONFIG_BLK_DEV_DRBD is not set ++# CONFIG_BLK_DEV_NBD is not set ++# CONFIG_BLK_DEV_SKD is not set ++# CONFIG_BLK_DEV_SX8 is not set ++CONFIG_BLK_DEV_RAM=y ++CONFIG_BLK_DEV_RAM_COUNT=8 ++CONFIG_BLK_DEV_RAM_SIZE=16384 ++# CONFIG_CDROM_PKTCDVD is not set ++# CONFIG_ATA_OVER_ETH is not set ++# CONFIG_BLK_DEV_RBD is not set ++# CONFIG_BLK_DEV_RSXX is not set ++ ++# ++# NVME Support ++# ++CONFIG_NVME_CORE=m ++CONFIG_BLK_DEV_NVME=m ++# CONFIG_NVME_MULTIPATH is not set ++# CONFIG_NVME_HWMON is not set ++# CONFIG_NVME_FC is not set ++# CONFIG_NVME_TCP is not set ++# CONFIG_NVME_TARGET is not set ++# end of NVME Support ++ ++# ++# Misc devices ++# ++# CONFIG_AD525X_DPOT is not set ++# CONFIG_DUMMY_IRQ is not set ++# CONFIG_PHANTOM is not set ++# CONFIG_TIFM_CORE is not set ++# CONFIG_ICS932S401 is not set ++# CONFIG_ENCLOSURE_SERVICES is not set ++# CONFIG_HP_ILO is not set ++# CONFIG_APDS9802ALS is not set ++# CONFIG_ISL29003 is not set ++# CONFIG_ISL29020 is not set ++# CONFIG_SENSORS_TSL2550 is not set ++# CONFIG_SENSORS_BH1770 is not set ++# CONFIG_SENSORS_APDS990X is not set ++# CONFIG_HMC6352 is not set ++# CONFIG_DS1682 is not set ++# CONFIG_LATTICE_ECP3_CONFIG is not set ++# CONFIG_SRAM is not set ++# CONFIG_PCI_ENDPOINT_TEST is not set ++# CONFIG_XILINX_SDFEC is not set ++# CONFIG_PVPANIC is not set ++CONFIG_TP_BMC=y ++# CONFIG_C2PORT is not set ++ ++# ++# EEPROM support ++# ++CONFIG_EEPROM_AT24=m ++CONFIG_EEPROM_AT25=m ++# CONFIG_EEPROM_LEGACY is not set ++# CONFIG_EEPROM_MAX6875 is not set ++# CONFIG_EEPROM_93CX6 is not set ++# CONFIG_EEPROM_93XX46 is not set ++# CONFIG_EEPROM_IDT_89HPESX is not set ++# CONFIG_EEPROM_EE1004 is not set ++# end of EEPROM support ++ ++# CONFIG_CB710_CORE is not set ++ ++# ++# Texas Instruments shared transport line discipline ++# ++# CONFIG_TI_ST is not set ++# end of Texas Instruments shared transport line discipline ++ ++# CONFIG_SENSORS_LIS3_SPI is not set ++# CONFIG_SENSORS_LIS3_I2C is not set ++# CONFIG_ALTERA_STAPL is not set ++ ++# ++# Intel MIC & related support ++# ++# CONFIG_VOP_BUS is not set ++# end of Intel MIC & related support ++ ++# CONFIG_GENWQE is not set ++# CONFIG_ECHO is not set ++# CONFIG_MISC_ALCOR_PCI is not set ++# CONFIG_MISC_RTSX_PCI is not set ++# CONFIG_MISC_RTSX_USB is not set ++# CONFIG_HABANA_AI is not set ++# end of Misc devices ++ ++# ++# SCSI device support ++# ++CONFIG_SCSI_MOD=y ++# CONFIG_RAID_ATTRS is not set ++CONFIG_SCSI=y ++CONFIG_SCSI_DMA=y ++# CONFIG_SCSI_PROC_FS is not set ++ ++# ++# SCSI support type (disk, tape, CD-ROM) ++# ++CONFIG_BLK_DEV_SD=y ++# CONFIG_CHR_DEV_ST is not set ++CONFIG_BLK_DEV_SR=m ++CONFIG_BLK_DEV_SR_VENDOR=y ++# CONFIG_CHR_DEV_SG is not set ++# CONFIG_CHR_DEV_SCH is not set ++CONFIG_SCSI_CONSTANTS=y ++# CONFIG_SCSI_LOGGING is not set ++CONFIG_SCSI_SCAN_ASYNC=y ++ ++# ++# SCSI Transports ++# ++# CONFIG_SCSI_SPI_ATTRS is not set ++# CONFIG_SCSI_FC_ATTRS is not set ++# CONFIG_SCSI_ISCSI_ATTRS is not set ++# CONFIG_SCSI_SAS_ATTRS is not set ++# CONFIG_SCSI_SAS_LIBSAS is not set ++# CONFIG_SCSI_SRP_ATTRS is not set ++# end of SCSI Transports ++ ++# CONFIG_SCSI_LOWLEVEL is not set ++# CONFIG_SCSI_DH is not set ++# end of SCSI device support ++ ++CONFIG_HAVE_PATA_PLATFORM=y ++CONFIG_ATA=y ++CONFIG_ATA_VERBOSE_ERROR=y ++CONFIG_SATA_PMP=y ++ ++# ++# Controllers with non-SFF native interface ++# ++CONFIG_SATA_AHCI=y ++CONFIG_SATA_MOBILE_LPM_POLICY=0 ++CONFIG_SATA_AHCI_PLATFORM=y ++# CONFIG_AHCI_CEVA is not set ++# CONFIG_AHCI_QORIQ is not set ++# CONFIG_SATA_INIC162X is not set ++# CONFIG_SATA_ACARD_AHCI is not set ++# CONFIG_SATA_SIL24 is not set ++# CONFIG_ATA_SFF is not set ++CONFIG_MD=y ++CONFIG_BLK_DEV_MD=m ++# CONFIG_MD_LINEAR is not set ++CONFIG_MD_RAID0=m ++CONFIG_MD_RAID1=m ++CONFIG_MD_RAID10=m ++CONFIG_MD_RAID456=m ++# CONFIG_MD_MULTIPATH is not set ++# CONFIG_MD_FAULTY is not set ++# CONFIG_BCACHE is not set ++CONFIG_BLK_DEV_DM_BUILTIN=y ++CONFIG_BLK_DEV_DM=m ++# CONFIG_DM_DEBUG is not set ++CONFIG_DM_BUFIO=m ++# CONFIG_DM_DEBUG_BLOCK_MANAGER_LOCKING is not set ++CONFIG_DM_BIO_PRISON=m ++CONFIG_DM_PERSISTENT_DATA=m ++# CONFIG_DM_UNSTRIPED is not set ++CONFIG_DM_CRYPT=m ++CONFIG_DM_SNAPSHOT=m ++CONFIG_DM_THIN_PROVISIONING=m ++# CONFIG_DM_CACHE is not set ++# CONFIG_DM_WRITECACHE is not set ++# CONFIG_DM_ERA is not set ++# CONFIG_DM_CLONE is not set ++CONFIG_DM_MIRROR=m ++# CONFIG_DM_LOG_USERSPACE is not set ++CONFIG_DM_RAID=m ++CONFIG_DM_ZERO=m ++# CONFIG_DM_MULTIPATH is not set ++# CONFIG_DM_DELAY is not set ++# CONFIG_DM_DUST is not set ++CONFIG_DM_UEVENT=y ++# CONFIG_DM_FLAKEY is not set ++# CONFIG_DM_VERITY is not set ++# CONFIG_DM_SWITCH is not set ++# CONFIG_DM_LOG_WRITES is not set ++# CONFIG_DM_INTEGRITY is not set ++# CONFIG_TARGET_CORE is not set ++# CONFIG_FUSION is not set ++ ++# ++# IEEE 1394 (FireWire) support ++# ++# CONFIG_FIREWIRE is not set ++# CONFIG_FIREWIRE_NOSY is not set ++# end of IEEE 1394 (FireWire) support ++ ++CONFIG_NETDEVICES=y ++CONFIG_MII=y ++CONFIG_NET_CORE=y ++CONFIG_BONDING=m ++CONFIG_DUMMY=m ++# CONFIG_WIREGUARD is not set ++# CONFIG_EQUALIZER is not set ++# CONFIG_NET_FC is not set ++# CONFIG_NET_TEAM is not set ++CONFIG_MACVLAN=m ++CONFIG_MACVTAP=m ++CONFIG_IPVLAN=m ++CONFIG_IPVTAP=m ++# CONFIG_VXLAN is not set ++# CONFIG_GENEVE is not set ++# CONFIG_GTP is not set ++# CONFIG_MACSEC is not set ++# CONFIG_NETCONSOLE is not set ++CONFIG_TUN=m ++CONFIG_TAP=m ++# CONFIG_TUN_VNET_CROSS_LE is not set ++CONFIG_VETH=m ++CONFIG_NLMON=m ++# CONFIG_ARCNET is not set ++ ++# ++# Distributed Switch Architecture drivers ++# ++# end of Distributed Switch Architecture drivers ++ ++CONFIG_ETHERNET=y ++# CONFIG_NET_VENDOR_3COM is not set ++# CONFIG_NET_VENDOR_ADAPTEC is not set ++# CONFIG_NET_VENDOR_AGERE is not set ++# CONFIG_NET_VENDOR_ALACRITECH is not set ++# CONFIG_NET_VENDOR_ALTEON is not set ++# CONFIG_ALTERA_TSE is not set ++# CONFIG_NET_VENDOR_AMAZON is not set ++# CONFIG_NET_VENDOR_AMD is not set ++# CONFIG_NET_VENDOR_AQUANTIA is not set ++# CONFIG_NET_VENDOR_ARC is not set ++# CONFIG_NET_VENDOR_ATHEROS is not set ++# CONFIG_NET_VENDOR_AURORA is not set ++# CONFIG_NET_VENDOR_BROADCOM is not set ++# CONFIG_NET_VENDOR_BROCADE is not set ++# CONFIG_NET_VENDOR_CADENCE is not set ++# CONFIG_NET_VENDOR_CAVIUM is not set ++# CONFIG_NET_VENDOR_CHELSIO is not set ++# CONFIG_NET_VENDOR_CISCO is not set ++# CONFIG_NET_VENDOR_CORTINA is not set ++# CONFIG_DNET is not set ++# CONFIG_NET_VENDOR_DEC is not set ++# CONFIG_NET_VENDOR_DLINK is not set ++# CONFIG_NET_VENDOR_EMULEX is not set ++# CONFIG_NET_VENDOR_EZCHIP is not set ++# CONFIG_NET_VENDOR_GOOGLE is not set ++# CONFIG_NET_VENDOR_HISILICON is not set ++# CONFIG_NET_VENDOR_HUAWEI is not set ++# CONFIG_NET_VENDOR_INTEL is not set ++# CONFIG_JME is not set ++# CONFIG_NET_VENDOR_MARVELL is not set ++# CONFIG_NET_VENDOR_MELLANOX is not set ++# CONFIG_NET_VENDOR_MICREL is not set ++# CONFIG_NET_VENDOR_MICROCHIP is not set ++# CONFIG_NET_VENDOR_MICROSEMI is not set ++# CONFIG_NET_VENDOR_MYRI is not set ++# CONFIG_FEALNX is not set ++# CONFIG_NET_VENDOR_NATSEMI is not set ++# CONFIG_NET_VENDOR_NETERION is not set ++# CONFIG_NET_VENDOR_NETRONOME is not set ++# CONFIG_NET_VENDOR_NI is not set ++# CONFIG_NET_VENDOR_NVIDIA is not set ++# CONFIG_NET_VENDOR_OKI is not set ++# CONFIG_ETHOC is not set ++# CONFIG_NET_VENDOR_PACKET_ENGINES is not set ++# CONFIG_NET_VENDOR_PENSANDO is not set ++# CONFIG_NET_VENDOR_QLOGIC is not set ++# CONFIG_NET_VENDOR_QUALCOMM is not set ++# CONFIG_NET_VENDOR_RDC is not set ++# CONFIG_NET_VENDOR_REALTEK is not set ++# CONFIG_NET_VENDOR_RENESAS is not set ++# CONFIG_NET_VENDOR_ROCKER is not set ++# CONFIG_NET_VENDOR_SAMSUNG is not set ++# CONFIG_NET_VENDOR_SEEQ is not set ++# CONFIG_NET_VENDOR_SOLARFLARE is not set ++# CONFIG_NET_VENDOR_SILAN is not set ++# CONFIG_NET_VENDOR_SIS is not set ++# CONFIG_NET_VENDOR_SMSC is not set ++# CONFIG_NET_VENDOR_SOCIONEXT is not set ++CONFIG_NET_VENDOR_STMICRO=y ++CONFIG_STMMAC_ETH=y ++# CONFIG_STMMAC_SELFTESTS is not set ++CONFIG_STMMAC_PLATFORM=y ++# CONFIG_DWMAC_DWC_QOS_ETH is not set ++CONFIG_DWMAC_GENERIC=y ++CONFIG_DWMAC_BAIKAL=y ++# CONFIG_STMMAC_PCI is not set ++# CONFIG_NET_VENDOR_SUN is not set ++# CONFIG_NET_VENDOR_SYNOPSYS is not set ++# CONFIG_NET_VENDOR_TEHUTI is not set ++# CONFIG_NET_VENDOR_TI is not set ++# CONFIG_NET_VENDOR_VIA is not set ++# CONFIG_NET_VENDOR_WIZNET is not set ++# CONFIG_NET_VENDOR_XILINX is not set ++# CONFIG_FDDI is not set ++# CONFIG_HIPPI is not set ++CONFIG_MDIO_DEVICE=y ++CONFIG_MDIO_BUS=y ++# CONFIG_MDIO_BCM_UNIMAC is not set ++CONFIG_MDIO_BITBANG=m ++# CONFIG_MDIO_BUS_MUX_GPIO is not set ++# CONFIG_MDIO_BUS_MUX_MMIOREG is not set ++# CONFIG_MDIO_BUS_MUX_MULTIPLEXER is not set ++CONFIG_MDIO_GPIO=m ++# CONFIG_MDIO_HISI_FEMAC is not set ++# CONFIG_MDIO_MSCC_MIIM is not set ++# CONFIG_MDIO_OCTEON is not set ++# CONFIG_MDIO_THUNDER is not set ++CONFIG_PHYLINK=y ++CONFIG_PHYLIB=y ++CONFIG_SWPHY=y ++ ++# ++# MII PHY device drivers ++# ++# CONFIG_SFP is not set ++# CONFIG_ADIN_PHY is not set ++# CONFIG_AMD_PHY is not set ++# CONFIG_AQUANTIA_PHY is not set ++# CONFIG_AX88796B_PHY is not set ++# CONFIG_BCM7XXX_PHY is not set ++# CONFIG_BCM87XX_PHY is not set ++# CONFIG_BROADCOM_PHY is not set ++# CONFIG_BCM84881_PHY is not set ++# CONFIG_CICADA_PHY is not set ++# CONFIG_CORTINA_PHY is not set ++# CONFIG_DAVICOM_PHY is not set ++# CONFIG_DP83822_PHY is not set ++# CONFIG_DP83TC811_PHY is not set ++# CONFIG_DP83848_PHY is not set ++# CONFIG_DP83867_PHY is not set ++# CONFIG_DP83869_PHY is not set ++CONFIG_FIXED_PHY=y ++# CONFIG_ICPLUS_PHY is not set ++# CONFIG_INTEL_XWAY_PHY is not set ++# CONFIG_LSI_ET1011C_PHY is not set ++# CONFIG_LXT_PHY is not set ++CONFIG_MARVELL_PHY=m ++# CONFIG_MARVELL_10G_PHY is not set ++CONFIG_MICREL_PHY=y ++# CONFIG_MICROCHIP_PHY is not set ++# CONFIG_MICROCHIP_T1_PHY is not set ++# CONFIG_MICROSEMI_PHY is not set ++# CONFIG_NATIONAL_PHY is not set ++# CONFIG_NXP_TJA11XX_PHY is not set ++# CONFIG_QSEMI_PHY is not set ++CONFIG_REALTEK_PHY=m ++# CONFIG_RENESAS_PHY is not set ++# CONFIG_ROCKCHIP_PHY is not set ++# CONFIG_SMSC_PHY is not set ++# CONFIG_STE10XP is not set ++# CONFIG_TERANETICS_PHY is not set ++# CONFIG_VITESSE_PHY is not set ++# CONFIG_XILINX_GMII2RGMII is not set ++# CONFIG_MICREL_KS8995MA is not set ++CONFIG_PPP=m ++CONFIG_PPP_BSDCOMP=m ++CONFIG_PPP_DEFLATE=m ++# CONFIG_PPP_FILTER is not set ++CONFIG_PPP_MPPE=m ++CONFIG_PPP_MULTILINK=y ++CONFIG_PPPOE=m ++CONFIG_PPP_ASYNC=m ++CONFIG_PPP_SYNC_TTY=m ++# CONFIG_SLIP is not set ++CONFIG_SLHC=m ++# CONFIG_USB_NET_DRIVERS is not set ++# CONFIG_WLAN is not set ++ ++# ++# Enable WiMAX (Networking options) to see the WiMAX drivers ++# ++# CONFIG_WAN is not set ++# CONFIG_VMXNET3 is not set ++# CONFIG_NETDEVSIM is not set ++# CONFIG_NET_FAILOVER is not set ++# CONFIG_ISDN is not set ++# CONFIG_NVM is not set ++ ++# ++# Input device support ++# ++CONFIG_INPUT=y ++# CONFIG_INPUT_FF_MEMLESS is not set ++# CONFIG_INPUT_POLLDEV is not set ++# CONFIG_INPUT_SPARSEKMAP is not set ++# CONFIG_INPUT_MATRIXKMAP is not set ++ ++# ++# Userland interfaces ++# ++CONFIG_INPUT_MOUSEDEV=y ++CONFIG_INPUT_MOUSEDEV_PSAUX=y ++CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024 ++CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768 ++# CONFIG_INPUT_JOYDEV is not set ++CONFIG_INPUT_EVDEV=m ++# CONFIG_INPUT_EVBUG is not set ++ ++# ++# Input Device Drivers ++# ++CONFIG_INPUT_KEYBOARD=y ++# CONFIG_KEYBOARD_ADP5588 is not set ++# CONFIG_KEYBOARD_ADP5589 is not set ++CONFIG_KEYBOARD_ATKBD=m ++# CONFIG_KEYBOARD_QT1050 is not set ++# CONFIG_KEYBOARD_QT1070 is not set ++# CONFIG_KEYBOARD_QT2160 is not set ++# CONFIG_KEYBOARD_DLINK_DIR685 is not set ++# CONFIG_KEYBOARD_LKKBD is not set ++# CONFIG_KEYBOARD_GPIO is not set ++# CONFIG_KEYBOARD_GPIO_POLLED is not set ++# CONFIG_KEYBOARD_TCA6416 is not set ++# CONFIG_KEYBOARD_TCA8418 is not set ++# CONFIG_KEYBOARD_MATRIX is not set ++# CONFIG_KEYBOARD_LM8333 is not set ++# CONFIG_KEYBOARD_MAX7359 is not set ++# CONFIG_KEYBOARD_MCS is not set ++# CONFIG_KEYBOARD_MPR121 is not set ++# CONFIG_KEYBOARD_NEWTON is not set ++# CONFIG_KEYBOARD_OPENCORES is not set ++# CONFIG_KEYBOARD_SAMSUNG is not set ++# CONFIG_KEYBOARD_STOWAWAY is not set ++# CONFIG_KEYBOARD_SUNKBD is not set ++# CONFIG_KEYBOARD_OMAP4 is not set ++# CONFIG_KEYBOARD_XTKBD is not set ++# CONFIG_KEYBOARD_CAP11XX is not set ++# CONFIG_KEYBOARD_BCM is not set ++CONFIG_INPUT_MOUSE=y ++CONFIG_MOUSE_PS2=m ++CONFIG_MOUSE_PS2_ALPS=y ++CONFIG_MOUSE_PS2_BYD=y ++CONFIG_MOUSE_PS2_LOGIPS2PP=y ++CONFIG_MOUSE_PS2_SYNAPTICS=y ++CONFIG_MOUSE_PS2_SYNAPTICS_SMBUS=y ++CONFIG_MOUSE_PS2_CYPRESS=y ++CONFIG_MOUSE_PS2_TRACKPOINT=y ++CONFIG_MOUSE_PS2_FOCALTECH=y ++CONFIG_MOUSE_PS2_SMBUS=y ++# CONFIG_MOUSE_SERIAL is not set ++# CONFIG_MOUSE_APPLETOUCH is not set ++# CONFIG_MOUSE_BCM5974 is not set ++# CONFIG_MOUSE_CYAPA is not set ++# CONFIG_MOUSE_ELAN_I2C is not set ++# CONFIG_MOUSE_VSXXXAA is not set ++# CONFIG_MOUSE_GPIO is not set ++# CONFIG_MOUSE_SYNAPTICS_I2C is not set ++# CONFIG_MOUSE_SYNAPTICS_USB is not set ++# CONFIG_INPUT_JOYSTICK is not set ++# CONFIG_INPUT_TABLET is not set ++# CONFIG_INPUT_TOUCHSCREEN is not set ++# CONFIG_INPUT_MISC is not set ++# CONFIG_RMI4_CORE is not set ++ ++# ++# Hardware I/O ports ++# ++CONFIG_SERIO=y ++CONFIG_SERIO_SERPORT=y ++# CONFIG_SERIO_AMBAKMI is not set ++# CONFIG_SERIO_PCIPS2 is not set ++CONFIG_SERIO_LIBPS2=m ++# CONFIG_SERIO_RAW is not set ++# CONFIG_SERIO_ALTERA_PS2 is not set ++# CONFIG_SERIO_PS2MULT is not set ++# CONFIG_SERIO_ARC_PS2 is not set ++# CONFIG_SERIO_APBPS2 is not set ++CONFIG_SERIO_TPLATFORMS=m ++# CONFIG_SERIO_GPIO_PS2 is not set ++# CONFIG_USERIO is not set ++# CONFIG_GAMEPORT is not set ++# end of Hardware I/O ports ++# end of Input device support ++ ++# ++# Character devices ++# ++CONFIG_TTY=y ++CONFIG_VT=y ++CONFIG_CONSOLE_TRANSLATIONS=y ++CONFIG_VT_CONSOLE=y ++CONFIG_VT_CONSOLE_SLEEP=y ++CONFIG_HW_CONSOLE=y ++CONFIG_VT_HW_CONSOLE_BINDING=y ++CONFIG_UNIX98_PTYS=y ++CONFIG_LEGACY_PTYS=y ++CONFIG_LEGACY_PTY_COUNT=256 ++# CONFIG_SERIAL_NONSTANDARD is not set ++# CONFIG_NOZOMI is not set ++# CONFIG_N_GSM is not set ++# CONFIG_TRACE_SINK is not set ++# CONFIG_NULL_TTY is not set ++CONFIG_LDISC_AUTOLOAD=y ++CONFIG_DEVMEM=y ++ ++# ++# Serial drivers ++# ++CONFIG_SERIAL_EARLYCON=y ++CONFIG_SERIAL_8250=y ++CONFIG_SERIAL_8250_DEPRECATED_OPTIONS=y ++# CONFIG_SERIAL_8250_16550A_VARIANTS is not set ++# CONFIG_SERIAL_8250_FINTEK is not set ++CONFIG_SERIAL_8250_CONSOLE=y ++CONFIG_SERIAL_8250_DMA=y ++CONFIG_SERIAL_8250_PCI=y ++CONFIG_SERIAL_8250_EXAR=y ++CONFIG_SERIAL_8250_NR_UARTS=2 ++CONFIG_SERIAL_8250_RUNTIME_UARTS=2 ++CONFIG_SERIAL_8250_EXTENDED=y ++# CONFIG_SERIAL_8250_MANY_PORTS is not set ++# CONFIG_SERIAL_8250_ASPEED_VUART is not set ++# CONFIG_SERIAL_8250_SHARE_IRQ is not set ++# CONFIG_SERIAL_8250_DETECT_IRQ is not set ++# CONFIG_SERIAL_8250_RSA is not set ++CONFIG_SERIAL_8250_DWLIB=y ++CONFIG_SERIAL_8250_FSL=y ++CONFIG_SERIAL_8250_DW=y ++# CONFIG_SERIAL_8250_RT288X is not set ++CONFIG_SERIAL_OF_PLATFORM=y ++ ++# ++# Non-8250 serial port support ++# ++# CONFIG_SERIAL_AMBA_PL010 is not set ++# CONFIG_SERIAL_AMBA_PL011 is not set ++# CONFIG_SERIAL_EARLYCON_ARM_SEMIHOST is not set ++# CONFIG_SERIAL_KGDB_NMI is not set ++# CONFIG_SERIAL_MAX3100 is not set ++# CONFIG_SERIAL_MAX310X is not set ++# CONFIG_SERIAL_UARTLITE is not set ++CONFIG_SERIAL_CORE=y ++CONFIG_SERIAL_CORE_CONSOLE=y ++CONFIG_CONSOLE_POLL=y ++# CONFIG_SERIAL_JSM is not set ++# CONFIG_SERIAL_SIFIVE is not set ++# CONFIG_SERIAL_SCCNXP is not set ++# CONFIG_SERIAL_SC16IS7XX is not set ++# CONFIG_SERIAL_ALTERA_JTAGUART is not set ++# CONFIG_SERIAL_ALTERA_UART is not set ++# CONFIG_SERIAL_IFX6X60 is not set ++# CONFIG_SERIAL_XILINX_PS_UART is not set ++# CONFIG_SERIAL_ARC is not set ++# CONFIG_SERIAL_RP2 is not set ++# CONFIG_SERIAL_FSL_LPUART is not set ++# CONFIG_SERIAL_FSL_LINFLEXUART is not set ++# CONFIG_SERIAL_CONEXANT_DIGICOLOR is not set ++# end of Serial drivers ++ ++CONFIG_SERIAL_MCTRL_GPIO=y ++# CONFIG_SERIAL_DEV_BUS is not set ++# CONFIG_HVC_DCC is not set ++# CONFIG_IPMI_HANDLER is not set ++CONFIG_HW_RANDOM=m ++# CONFIG_HW_RANDOM_TIMERIOMEM is not set ++# CONFIG_HW_RANDOM_CAVIUM is not set ++# CONFIG_APPLICOM is not set ++# CONFIG_RAW_DRIVER is not set ++# CONFIG_TCG_TPM is not set ++CONFIG_DEVPORT=y ++# CONFIG_XILLYBUS is not set ++# end of Character devices ++ ++# CONFIG_RANDOM_TRUST_BOOTLOADER is not set ++ ++# ++# I2C support ++# ++CONFIG_I2C=y ++CONFIG_I2C_BOARDINFO=y ++CONFIG_I2C_COMPAT=y ++CONFIG_I2C_CHARDEV=y ++CONFIG_I2C_MUX=m ++ ++# ++# Multiplexer I2C Chip support ++# ++# CONFIG_I2C_ARB_GPIO_CHALLENGE is not set ++# CONFIG_I2C_MUX_GPIO is not set ++# CONFIG_I2C_MUX_GPMUX is not set ++# CONFIG_I2C_MUX_LTC4306 is not set ++# CONFIG_I2C_MUX_PCA9541 is not set ++# CONFIG_I2C_MUX_PCA954x is not set ++# CONFIG_I2C_MUX_PINCTRL is not set ++# CONFIG_I2C_MUX_REG is not set ++# CONFIG_I2C_DEMUX_PINCTRL is not set ++# CONFIG_I2C_MUX_MLXCPLD is not set ++# end of Multiplexer I2C Chip support ++ ++CONFIG_I2C_HELPER_AUTO=y ++CONFIG_I2C_ALGOBIT=y ++ ++# ++# I2C Hardware Bus support ++# ++ ++# ++# PC SMBus host controller drivers ++# ++# CONFIG_I2C_ALI1535 is not set ++# CONFIG_I2C_ALI1563 is not set ++# CONFIG_I2C_ALI15X3 is not set ++# CONFIG_I2C_AMD756 is not set ++# CONFIG_I2C_AMD8111 is not set ++# CONFIG_I2C_I801 is not set ++# CONFIG_I2C_ISCH is not set ++# CONFIG_I2C_PIIX4 is not set ++# CONFIG_I2C_NFORCE2 is not set ++# CONFIG_I2C_NVIDIA_GPU is not set ++# CONFIG_I2C_SIS5595 is not set ++# CONFIG_I2C_SIS630 is not set ++# CONFIG_I2C_SIS96X is not set ++# CONFIG_I2C_VIA is not set ++# CONFIG_I2C_VIAPRO is not set ++ ++# ++# I2C system bus drivers (mostly embedded / system-on-chip) ++# ++# CONFIG_I2C_CADENCE is not set ++# CONFIG_I2C_CBUS_GPIO is not set ++CONFIG_I2C_DESIGNWARE_CORE=y ++CONFIG_I2C_DESIGNWARE_PLATFORM=y ++# CONFIG_I2C_DESIGNWARE_SLAVE is not set ++# CONFIG_I2C_DESIGNWARE_PCI is not set ++# CONFIG_I2C_EMEV2 is not set ++# CONFIG_I2C_GPIO is not set ++# CONFIG_I2C_NOMADIK is not set ++# CONFIG_I2C_OCORES is not set ++# CONFIG_I2C_PCA_PLATFORM is not set ++# CONFIG_I2C_RK3X is not set ++# CONFIG_I2C_SIMTEC is not set ++# CONFIG_I2C_THUNDERX is not set ++# CONFIG_I2C_XILINX is not set ++ ++# ++# External I2C/SMBus adapter drivers ++# ++# CONFIG_I2C_DIOLAN_U2C is not set ++# CONFIG_I2C_ROBOTFUZZ_OSIF is not set ++# CONFIG_I2C_TAOS_EVM is not set ++# CONFIG_I2C_TINY_USB is not set ++ ++# ++# Other I2C/SMBus bus drivers ++# ++# end of I2C Hardware Bus support ++ ++# CONFIG_I2C_STUB is not set ++# CONFIG_I2C_SLAVE is not set ++# CONFIG_I2C_DEBUG_CORE is not set ++# CONFIG_I2C_DEBUG_ALGO is not set ++# CONFIG_I2C_DEBUG_BUS is not set ++# end of I2C support ++ ++# CONFIG_I3C is not set ++CONFIG_SPI=y ++# CONFIG_SPI_DEBUG is not set ++CONFIG_SPI_MASTER=y ++CONFIG_SPI_MEM=y ++ ++# ++# SPI Master Controller Drivers ++# ++# CONFIG_SPI_ALTERA is not set ++# CONFIG_SPI_AXI_SPI_ENGINE is not set ++# CONFIG_SPI_BITBANG is not set ++# CONFIG_SPI_CADENCE is not set ++CONFIG_SPI_DESIGNWARE=y ++# CONFIG_SPI_DW_PCI is not set ++CONFIG_SPI_DW_MMIO=y ++# CONFIG_SPI_NXP_FLEXSPI is not set ++# CONFIG_SPI_GPIO is not set ++# CONFIG_SPI_FSL_SPI is not set ++# CONFIG_SPI_OC_TINY is not set ++# CONFIG_SPI_PL022 is not set ++# CONFIG_SPI_PXA2XX is not set ++# CONFIG_SPI_ROCKCHIP is not set ++# CONFIG_SPI_SC18IS602 is not set ++# CONFIG_SPI_SIFIVE is not set ++# CONFIG_SPI_MXIC is not set ++# CONFIG_SPI_THUNDERX is not set ++# CONFIG_SPI_XCOMM is not set ++# CONFIG_SPI_XILINX is not set ++# CONFIG_SPI_ZYNQMP_GQSPI is not set ++ ++# ++# SPI Protocol Masters ++# ++CONFIG_SPI_SPIDEV=y ++# CONFIG_SPI_LOOPBACK_TEST is not set ++# CONFIG_SPI_TLE62X0 is not set ++# CONFIG_SPI_SLAVE is not set ++# CONFIG_SPMI is not set ++# CONFIG_HSI is not set ++CONFIG_PPS=y ++# CONFIG_PPS_DEBUG is not set ++ ++# ++# PPS clients support ++# ++# CONFIG_PPS_CLIENT_KTIMER is not set ++# CONFIG_PPS_CLIENT_LDISC is not set ++# CONFIG_PPS_CLIENT_GPIO is not set ++ ++# ++# PPS generators support ++# ++ ++# ++# PTP clock support ++# ++CONFIG_PTP_1588_CLOCK=y ++ ++# ++# Enable PHYLIB and NETWORK_PHY_TIMESTAMPING to see the additional clocks. ++# ++# CONFIG_PTP_1588_CLOCK_IDTCM is not set ++# end of PTP clock support ++ ++CONFIG_PINCTRL=y ++CONFIG_PINCONF=y ++CONFIG_GENERIC_PINCONF=y ++# CONFIG_DEBUG_PINCTRL is not set ++# CONFIG_PINCTRL_AMD is not set ++# CONFIG_PINCTRL_MCP23S08 is not set ++# CONFIG_PINCTRL_SINGLE is not set ++# CONFIG_PINCTRL_SX150X is not set ++# CONFIG_PINCTRL_STMFX is not set ++# CONFIG_PINCTRL_OCELOT is not set ++# CONFIG_PINCTRL_EQUILIBRIUM is not set ++CONFIG_GPIOLIB=y ++CONFIG_GPIOLIB_FASTPATH_LIMIT=512 ++CONFIG_OF_GPIO=y ++CONFIG_GPIOLIB_IRQCHIP=y ++# CONFIG_DEBUG_GPIO is not set ++CONFIG_GPIO_SYSFS=y ++CONFIG_GPIO_GENERIC=y ++ ++# ++# Memory mapped GPIO drivers ++# ++# CONFIG_GPIO_74XX_MMIO is not set ++# CONFIG_GPIO_ALTERA is not set ++# CONFIG_GPIO_CADENCE is not set ++CONFIG_GPIO_DWAPB=y ++# CONFIG_GPIO_EXAR is not set ++# CONFIG_GPIO_FTGPIO010 is not set ++CONFIG_GPIO_GENERIC_PLATFORM=y ++# CONFIG_GPIO_GRGPIO is not set ++# CONFIG_GPIO_HLWD is not set ++# CONFIG_GPIO_LOGICVC is not set ++# CONFIG_GPIO_MB86S7X is not set ++# CONFIG_GPIO_PL061 is not set ++# CONFIG_GPIO_SAMA5D2_PIOBU is not set ++# CONFIG_GPIO_SIFIVE is not set ++# CONFIG_GPIO_SYSCON is not set ++# CONFIG_GPIO_XGENE is not set ++# CONFIG_GPIO_XILINX is not set ++# CONFIG_GPIO_AMD_FCH is not set ++# end of Memory mapped GPIO drivers ++ ++# ++# I2C GPIO expanders ++# ++# CONFIG_GPIO_ADP5588 is not set ++# CONFIG_GPIO_ADNP is not set ++# CONFIG_GPIO_GW_PLD is not set ++# CONFIG_GPIO_MAX7300 is not set ++# CONFIG_GPIO_MAX732X is not set ++# CONFIG_GPIO_PCA953X is not set ++CONFIG_GPIO_PCF857X=y ++# CONFIG_GPIO_TPIC2810 is not set ++# end of I2C GPIO expanders ++ ++# ++# MFD GPIO expanders ++# ++# end of MFD GPIO expanders ++ ++# ++# PCI GPIO expanders ++# ++# CONFIG_GPIO_BT8XX is not set ++# CONFIG_GPIO_PCI_IDIO_16 is not set ++# CONFIG_GPIO_PCIE_IDIO_24 is not set ++# CONFIG_GPIO_RDC321X is not set ++# end of PCI GPIO expanders ++ ++# ++# SPI GPIO expanders ++# ++# CONFIG_GPIO_74X164 is not set ++# CONFIG_GPIO_MAX3191X is not set ++# CONFIG_GPIO_MAX7301 is not set ++# CONFIG_GPIO_MC33880 is not set ++# CONFIG_GPIO_PISOSR is not set ++# CONFIG_GPIO_XRA1403 is not set ++# end of SPI GPIO expanders ++ ++# ++# USB GPIO expanders ++# ++# end of USB GPIO expanders ++ ++# CONFIG_GPIO_MOCKUP is not set ++# CONFIG_W1 is not set ++# CONFIG_POWER_AVS is not set ++CONFIG_POWER_RESET=y ++# CONFIG_POWER_RESET_BRCMSTB is not set ++# CONFIG_POWER_RESET_GPIO is not set ++# CONFIG_POWER_RESET_GPIO_RESTART is not set ++# CONFIG_POWER_RESET_LTC2952 is not set ++# CONFIG_POWER_RESET_RESTART is not set ++# CONFIG_POWER_RESET_XGENE is not set ++# CONFIG_POWER_RESET_SYSCON is not set ++# CONFIG_POWER_RESET_SYSCON_POWEROFF is not set ++# CONFIG_SYSCON_REBOOT_MODE is not set ++# CONFIG_NVMEM_REBOOT_MODE is not set ++CONFIG_POWER_SUPPLY=y ++# CONFIG_POWER_SUPPLY_DEBUG is not set ++CONFIG_POWER_SUPPLY_HWMON=y ++# CONFIG_PDA_POWER is not set ++# CONFIG_TEST_POWER is not set ++# CONFIG_CHARGER_ADP5061 is not set ++# CONFIG_BATTERY_DS2780 is not set ++# CONFIG_BATTERY_DS2781 is not set ++# CONFIG_BATTERY_DS2782 is not set ++# CONFIG_BATTERY_SBS is not set ++# CONFIG_CHARGER_SBS is not set ++# CONFIG_MANAGER_SBS is not set ++# CONFIG_BATTERY_BQ27XXX is not set ++# CONFIG_BATTERY_MAX17040 is not set ++# CONFIG_BATTERY_MAX17042 is not set ++# CONFIG_CHARGER_MAX8903 is not set ++# CONFIG_CHARGER_LP8727 is not set ++# CONFIG_CHARGER_GPIO is not set ++# CONFIG_CHARGER_LT3651 is not set ++# CONFIG_CHARGER_DETECTOR_MAX14656 is not set ++# CONFIG_CHARGER_BQ2415X is not set ++# CONFIG_CHARGER_BQ24257 is not set ++# CONFIG_CHARGER_BQ24735 is not set ++# CONFIG_CHARGER_BQ25890 is not set ++# CONFIG_CHARGER_SMB347 is not set ++# CONFIG_BATTERY_GAUGE_LTC2941 is not set ++# CONFIG_CHARGER_RT9455 is not set ++CONFIG_HWMON=y ++# CONFIG_HWMON_DEBUG_CHIP is not set ++ ++# ++# Native drivers ++# ++# CONFIG_SENSORS_AD7314 is not set ++# CONFIG_SENSORS_AD7414 is not set ++# CONFIG_SENSORS_AD7418 is not set ++# CONFIG_SENSORS_ADM1021 is not set ++# CONFIG_SENSORS_ADM1025 is not set ++# CONFIG_SENSORS_ADM1026 is not set ++# CONFIG_SENSORS_ADM1029 is not set ++# CONFIG_SENSORS_ADM1031 is not set ++# CONFIG_SENSORS_ADM1177 is not set ++# CONFIG_SENSORS_ADM9240 is not set ++# CONFIG_SENSORS_ADT7310 is not set ++# CONFIG_SENSORS_ADT7410 is not set ++# CONFIG_SENSORS_ADT7411 is not set ++# CONFIG_SENSORS_ADT7462 is not set ++# CONFIG_SENSORS_ADT7470 is not set ++# CONFIG_SENSORS_ADT7475 is not set ++# CONFIG_SENSORS_AS370 is not set ++# CONFIG_SENSORS_ASC7621 is not set ++# CONFIG_SENSORS_ASPEED is not set ++# CONFIG_SENSORS_ATXP1 is not set ++CONFIG_SENSORS_BT1_PVT=m ++# CONFIG_SENSORS_DRIVETEMP is not set ++# CONFIG_SENSORS_DS620 is not set ++# CONFIG_SENSORS_DS1621 is not set ++# CONFIG_SENSORS_I5K_AMB is not set ++# CONFIG_SENSORS_F71805F is not set ++# CONFIG_SENSORS_F71882FG is not set ++# CONFIG_SENSORS_F75375S is not set ++# CONFIG_SENSORS_FTSTEUTATES is not set ++# CONFIG_SENSORS_GL518SM is not set ++# CONFIG_SENSORS_GL520SM is not set ++# CONFIG_SENSORS_G760A is not set ++# CONFIG_SENSORS_G762 is not set ++# CONFIG_SENSORS_GPIO_FAN is not set ++# CONFIG_SENSORS_HIH6130 is not set ++# CONFIG_SENSORS_IT87 is not set ++# CONFIG_SENSORS_JC42 is not set ++# CONFIG_SENSORS_POWR1220 is not set ++# CONFIG_SENSORS_LINEAGE is not set ++# CONFIG_SENSORS_LTC2945 is not set ++# CONFIG_SENSORS_LTC2947_I2C is not set ++# CONFIG_SENSORS_LTC2947_SPI is not set ++# CONFIG_SENSORS_LTC2990 is not set ++# CONFIG_SENSORS_LTC4151 is not set ++# CONFIG_SENSORS_LTC4215 is not set ++# CONFIG_SENSORS_LTC4222 is not set ++# CONFIG_SENSORS_LTC4245 is not set ++# CONFIG_SENSORS_LTC4260 is not set ++# CONFIG_SENSORS_LTC4261 is not set ++# CONFIG_SENSORS_MAX1111 is not set ++# CONFIG_SENSORS_MAX16065 is not set ++# CONFIG_SENSORS_MAX1619 is not set ++# CONFIG_SENSORS_MAX1668 is not set ++# CONFIG_SENSORS_MAX197 is not set ++# CONFIG_SENSORS_MAX31722 is not set ++# CONFIG_SENSORS_MAX31730 is not set ++# CONFIG_SENSORS_MAX6621 is not set ++# CONFIG_SENSORS_MAX6639 is not set ++# CONFIG_SENSORS_MAX6642 is not set ++# CONFIG_SENSORS_MAX6650 is not set ++# CONFIG_SENSORS_MAX6697 is not set ++# CONFIG_SENSORS_MAX31790 is not set ++# CONFIG_SENSORS_MCP3021 is not set ++# CONFIG_SENSORS_TC654 is not set ++# CONFIG_SENSORS_ADCXX is not set ++# CONFIG_SENSORS_LM63 is not set ++# CONFIG_SENSORS_LM70 is not set ++# CONFIG_SENSORS_LM73 is not set ++# CONFIG_SENSORS_LM75 is not set ++# CONFIG_SENSORS_LM77 is not set ++# CONFIG_SENSORS_LM78 is not set ++# CONFIG_SENSORS_LM80 is not set ++# CONFIG_SENSORS_LM83 is not set ++# CONFIG_SENSORS_LM85 is not set ++# CONFIG_SENSORS_LM87 is not set ++# CONFIG_SENSORS_LM90 is not set ++# CONFIG_SENSORS_LM92 is not set ++# CONFIG_SENSORS_LM93 is not set ++# CONFIG_SENSORS_LM95234 is not set ++# CONFIG_SENSORS_LM95241 is not set ++# CONFIG_SENSORS_LM95245 is not set ++# CONFIG_SENSORS_PC87360 is not set ++# CONFIG_SENSORS_PC87427 is not set ++# CONFIG_SENSORS_NTC_THERMISTOR is not set ++# CONFIG_SENSORS_NCT6683 is not set ++# CONFIG_SENSORS_NCT6775 is not set ++# CONFIG_SENSORS_NCT7802 is not set ++# CONFIG_SENSORS_NCT7904 is not set ++# CONFIG_SENSORS_NPCM7XX is not set ++# CONFIG_SENSORS_OCC_P8_I2C is not set ++# CONFIG_SENSORS_PCF8591 is not set ++# CONFIG_PMBUS is not set ++# CONFIG_SENSORS_SHT15 is not set ++# CONFIG_SENSORS_SHT21 is not set ++# CONFIG_SENSORS_SHT3x is not set ++# CONFIG_SENSORS_SHTC1 is not set ++# CONFIG_SENSORS_SIS5595 is not set ++# CONFIG_SENSORS_DME1737 is not set ++# CONFIG_SENSORS_EMC1403 is not set ++# CONFIG_SENSORS_EMC2103 is not set ++# CONFIG_SENSORS_EMC6W201 is not set ++# CONFIG_SENSORS_SMSC47M1 is not set ++# CONFIG_SENSORS_SMSC47M192 is not set ++# CONFIG_SENSORS_SMSC47B397 is not set ++# CONFIG_SENSORS_SCH5627 is not set ++# CONFIG_SENSORS_SCH5636 is not set ++# CONFIG_SENSORS_STTS751 is not set ++# CONFIG_SENSORS_SMM665 is not set ++# CONFIG_SENSORS_ADC128D818 is not set ++# CONFIG_SENSORS_ADS7828 is not set ++# CONFIG_SENSORS_ADS7871 is not set ++# CONFIG_SENSORS_AMC6821 is not set ++# CONFIG_SENSORS_INA209 is not set ++# CONFIG_SENSORS_INA2XX is not set ++# CONFIG_SENSORS_INA3221 is not set ++# CONFIG_SENSORS_TC74 is not set ++# CONFIG_SENSORS_THMC50 is not set ++# CONFIG_SENSORS_TMP102 is not set ++# CONFIG_SENSORS_TMP103 is not set ++# CONFIG_SENSORS_TMP108 is not set ++# CONFIG_SENSORS_TMP401 is not set ++# CONFIG_SENSORS_TMP421 is not set ++# CONFIG_SENSORS_TMP513 is not set ++# CONFIG_SENSORS_VIA686A is not set ++# CONFIG_SENSORS_VT1211 is not set ++# CONFIG_SENSORS_VT8231 is not set ++# CONFIG_SENSORS_W83773G is not set ++# CONFIG_SENSORS_W83781D is not set ++# CONFIG_SENSORS_W83791D is not set ++# CONFIG_SENSORS_W83792D is not set ++# CONFIG_SENSORS_W83793 is not set ++# CONFIG_SENSORS_W83795 is not set ++# CONFIG_SENSORS_W83L785TS is not set ++# CONFIG_SENSORS_W83L786NG is not set ++# CONFIG_SENSORS_W83627HF is not set ++# CONFIG_SENSORS_W83627EHF is not set ++# CONFIG_THERMAL is not set ++CONFIG_WATCHDOG=y ++CONFIG_WATCHDOG_CORE=y ++CONFIG_WATCHDOG_NOWAYOUT=y ++CONFIG_WATCHDOG_HANDLE_BOOT_ENABLED=y ++CONFIG_WATCHDOG_OPEN_TIMEOUT=0 ++CONFIG_WATCHDOG_SYSFS=y ++ ++# ++# Watchdog Pretimeout Governors ++# ++# CONFIG_WATCHDOG_PRETIMEOUT_GOV is not set ++ ++# ++# Watchdog Device Drivers ++# ++# CONFIG_SOFT_WATCHDOG is not set ++CONFIG_GPIO_WATCHDOG=m ++# CONFIG_XILINX_WATCHDOG is not set ++# CONFIG_ZIIRAVE_WATCHDOG is not set ++# CONFIG_ARM_SP805_WATCHDOG is not set ++# CONFIG_ARM_SBSA_WATCHDOG is not set ++# CONFIG_CADENCE_WATCHDOG is not set ++CONFIG_DW_WATCHDOG=m ++# CONFIG_MAX63XX_WATCHDOG is not set ++# CONFIG_ALIM7101_WDT is not set ++# CONFIG_I6300ESB_WDT is not set ++# CONFIG_MEN_A21_WDT is not set ++ ++# ++# PCI-based Watchdog Cards ++# ++# CONFIG_PCIPCWATCHDOG is not set ++# CONFIG_WDTPCI is not set ++ ++# ++# USB-based Watchdog Cards ++# ++# CONFIG_USBPCWATCHDOG is not set ++CONFIG_SSB_POSSIBLE=y ++# CONFIG_SSB is not set ++CONFIG_BCMA_POSSIBLE=y ++# CONFIG_BCMA is not set ++ ++# ++# Multifunction device drivers ++# ++# CONFIG_MFD_ACT8945A is not set ++# CONFIG_MFD_AS3711 is not set ++# CONFIG_MFD_AS3722 is not set ++# CONFIG_PMIC_ADP5520 is not set ++# CONFIG_MFD_AAT2870_CORE is not set ++# CONFIG_MFD_ATMEL_FLEXCOM is not set ++# CONFIG_MFD_ATMEL_HLCDC is not set ++# CONFIG_MFD_BCM590XX is not set ++# CONFIG_MFD_BD9571MWV is not set ++# CONFIG_MFD_AXP20X_I2C is not set ++# CONFIG_MFD_MADERA is not set ++# CONFIG_PMIC_DA903X is not set ++# CONFIG_MFD_DA9052_SPI is not set ++# CONFIG_MFD_DA9052_I2C is not set ++# CONFIG_MFD_DA9055 is not set ++# CONFIG_MFD_DA9062 is not set ++# CONFIG_MFD_DA9063 is not set ++# CONFIG_MFD_DA9150 is not set ++# CONFIG_MFD_DLN2 is not set ++# CONFIG_MFD_MC13XXX_SPI is not set ++# CONFIG_MFD_MC13XXX_I2C is not set ++# CONFIG_MFD_HI6421_PMIC is not set ++# CONFIG_HTC_PASIC3 is not set ++# CONFIG_HTC_I2CPLD is not set ++# CONFIG_LPC_ICH is not set ++# CONFIG_LPC_SCH is not set ++# CONFIG_MFD_JANZ_CMODIO is not set ++# CONFIG_MFD_KEMPLD is not set ++# CONFIG_MFD_88PM800 is not set ++# CONFIG_MFD_88PM805 is not set ++# CONFIG_MFD_88PM860X is not set ++# CONFIG_MFD_MAX14577 is not set ++# CONFIG_MFD_MAX77620 is not set ++# CONFIG_MFD_MAX77650 is not set ++# CONFIG_MFD_MAX77686 is not set ++# CONFIG_MFD_MAX77693 is not set ++# CONFIG_MFD_MAX77843 is not set ++# CONFIG_MFD_MAX8907 is not set ++# CONFIG_MFD_MAX8925 is not set ++# CONFIG_MFD_MAX8997 is not set ++# CONFIG_MFD_MAX8998 is not set ++# CONFIG_MFD_MT6397 is not set ++# CONFIG_MFD_MENF21BMC is not set ++# CONFIG_EZX_PCAP is not set ++# CONFIG_MFD_CPCAP is not set ++# CONFIG_MFD_VIPERBOARD is not set ++# CONFIG_MFD_RETU is not set ++# CONFIG_MFD_PCF50633 is not set ++# CONFIG_UCB1400_CORE is not set ++# CONFIG_MFD_RDC321X is not set ++# CONFIG_MFD_RT5033 is not set ++# CONFIG_MFD_RC5T583 is not set ++# CONFIG_MFD_RK808 is not set ++# CONFIG_MFD_RN5T618 is not set ++# CONFIG_MFD_SEC_CORE is not set ++# CONFIG_MFD_SI476X_CORE is not set ++# CONFIG_MFD_SM501 is not set ++# CONFIG_MFD_SKY81452 is not set ++# CONFIG_MFD_SMSC is not set ++# CONFIG_ABX500_CORE is not set ++# CONFIG_MFD_STMPE is not set ++CONFIG_MFD_SYSCON=y ++# CONFIG_MFD_TI_AM335X_TSCADC is not set ++# CONFIG_MFD_LP3943 is not set ++# CONFIG_MFD_LP8788 is not set ++# CONFIG_MFD_TI_LMU is not set ++# CONFIG_MFD_PALMAS is not set ++# CONFIG_TPS6105X is not set ++# CONFIG_TPS65010 is not set ++# CONFIG_TPS6507X is not set ++# CONFIG_MFD_TPS65086 is not set ++# CONFIG_MFD_TPS65090 is not set ++# CONFIG_MFD_TPS65217 is not set ++# CONFIG_MFD_TI_LP873X is not set ++# CONFIG_MFD_TI_LP87565 is not set ++# CONFIG_MFD_TPS65218 is not set ++# CONFIG_MFD_TPS6586X is not set ++# CONFIG_MFD_TPS65910 is not set ++# CONFIG_MFD_TPS65912_I2C is not set ++# CONFIG_MFD_TPS65912_SPI is not set ++# CONFIG_MFD_TPS80031 is not set ++# CONFIG_TWL4030_CORE is not set ++# CONFIG_TWL6040_CORE is not set ++# CONFIG_MFD_WL1273_CORE is not set ++# CONFIG_MFD_LM3533 is not set ++# CONFIG_MFD_TC3589X is not set ++# CONFIG_MFD_TQMX86 is not set ++# CONFIG_MFD_VX855 is not set ++# CONFIG_MFD_LOCHNAGAR is not set ++# CONFIG_MFD_ARIZONA_I2C is not set ++# CONFIG_MFD_ARIZONA_SPI is not set ++# CONFIG_MFD_WM8400 is not set ++# CONFIG_MFD_WM831X_I2C is not set ++# CONFIG_MFD_WM831X_SPI is not set ++# CONFIG_MFD_WM8350_I2C is not set ++# CONFIG_MFD_WM8994 is not set ++# CONFIG_MFD_ROHM_BD718XX is not set ++# CONFIG_MFD_ROHM_BD70528 is not set ++# CONFIG_MFD_ROHM_BD71828 is not set ++# CONFIG_MFD_STPMIC1 is not set ++# CONFIG_MFD_STMFX is not set ++# end of Multifunction device drivers ++ ++# CONFIG_REGULATOR is not set ++# CONFIG_RC_CORE is not set ++# CONFIG_MEDIA_SUPPORT is not set ++ ++# ++# Graphics support ++# ++CONFIG_VGA_ARB=y ++CONFIG_VGA_ARB_MAX_GPUS=16 ++CONFIG_DRM=y ++# CONFIG_DRM_DP_AUX_CHARDEV is not set ++# CONFIG_DRM_DEBUG_MM is not set ++# CONFIG_DRM_DEBUG_SELFTEST is not set ++CONFIG_DRM_KMS_HELPER=y ++CONFIG_DRM_KMS_FB_HELPER=y ++CONFIG_DRM_FBDEV_EMULATION=y ++CONFIG_DRM_FBDEV_OVERALLOC=100 ++# CONFIG_DRM_LOAD_EDID_FIRMWARE is not set ++# CONFIG_DRM_DP_CEC is not set ++CONFIG_DRM_GEM_CMA_HELPER=y ++CONFIG_DRM_KMS_CMA_HELPER=y ++ ++# ++# I2C encoder or helper chips ++# ++# CONFIG_DRM_I2C_CH7006 is not set ++# CONFIG_DRM_I2C_SIL164 is not set ++# CONFIG_DRM_I2C_NXP_TDA998X is not set ++# CONFIG_DRM_I2C_NXP_TDA9950 is not set ++# end of I2C encoder or helper chips ++ ++# ++# ARM devices ++# ++# CONFIG_DRM_HDLCD is not set ++# CONFIG_DRM_MALI_DISPLAY is not set ++# CONFIG_DRM_KOMEDA is not set ++# end of ARM devices ++ ++CONFIG_DRM_BAIKAL_VDU=y ++# CONFIG_DRM_RADEON is not set ++# CONFIG_DRM_AMDGPU is not set ++ ++# ++# ACP (Audio CoProcessor) Configuration ++# ++# end of ACP (Audio CoProcessor) Configuration ++ ++# CONFIG_DRM_NOUVEAU is not set ++# CONFIG_DRM_VGEM is not set ++# CONFIG_DRM_VKMS is not set ++# CONFIG_DRM_UDL is not set ++# CONFIG_DRM_AST is not set ++# CONFIG_DRM_MGAG200 is not set ++# CONFIG_DRM_CIRRUS_QEMU is not set ++# CONFIG_DRM_RCAR_DW_HDMI is not set ++# CONFIG_DRM_RCAR_LVDS is not set ++CONFIG_DRM_RCAR_WRITEBACK=y ++# CONFIG_DRM_QXL is not set ++# CONFIG_DRM_BOCHS is not set ++CONFIG_DRM_PANEL=y ++ ++# ++# Display Panels ++# ++# CONFIG_DRM_PANEL_ARM_VERSATILE is not set ++CONFIG_DRM_PANEL_LVDS=y ++CONFIG_DRM_PANEL_SIMPLE=y ++# CONFIG_DRM_PANEL_ILITEK_IL9322 is not set ++# CONFIG_DRM_PANEL_SAMSUNG_LD9040 is not set ++# CONFIG_DRM_PANEL_LG_LB035Q02 is not set ++# CONFIG_DRM_PANEL_LG_LG4573 is not set ++# CONFIG_DRM_PANEL_NEC_NL8048HL11 is not set ++# CONFIG_DRM_PANEL_NOVATEK_NT39016 is not set ++# CONFIG_DRM_PANEL_OLIMEX_LCD_OLINUXINO is not set ++# CONFIG_DRM_PANEL_SAMSUNG_S6E63M0 is not set ++# CONFIG_DRM_PANEL_SAMSUNG_S6E8AA0 is not set ++# CONFIG_DRM_PANEL_SEIKO_43WVF1G is not set ++# CONFIG_DRM_PANEL_SITRONIX_ST7789V is not set ++# CONFIG_DRM_PANEL_SONY_ACX565AKM is not set ++# CONFIG_DRM_PANEL_TPO_TD028TTEC1 is not set ++# CONFIG_DRM_PANEL_TPO_TPG110 is not set ++# end of Display Panels ++ ++CONFIG_DRM_BRIDGE=y ++CONFIG_DRM_PANEL_BRIDGE=y ++ ++# ++# Display Interface Bridges ++# ++# CONFIG_DRM_CDNS_DSI is not set ++# CONFIG_DRM_DUMB_VGA_DAC is not set ++# CONFIG_DRM_LVDS_CODEC is not set ++CONFIG_DRM_BAIKAL_HDMI=y ++# CONFIG_DRM_MEGACHIPS_STDPXXXX_GE_B850V3_FW is not set ++# CONFIG_DRM_NXP_PTN3460 is not set ++# CONFIG_DRM_PARADE_PS8622 is not set ++# CONFIG_DRM_SIL_SII8620 is not set ++# CONFIG_DRM_SII902X is not set ++# CONFIG_DRM_SII9234 is not set ++# CONFIG_DRM_THINE_THC63LVD1024 is not set ++# CONFIG_DRM_TOSHIBA_TC358764 is not set ++# CONFIG_DRM_TOSHIBA_TC358767 is not set ++# CONFIG_DRM_TI_TFP410 is not set ++# CONFIG_DRM_TI_SN65DSI86 is not set ++# CONFIG_DRM_ANALOGIX_ANX6345 is not set ++# CONFIG_DRM_ANALOGIX_ANX78XX is not set ++# CONFIG_DRM_I2C_ADV7511 is not set ++CONFIG_DRM_DW_HDMI=y ++CONFIG_DRM_DW_HDMI_AHB_AUDIO=m ++# CONFIG_DRM_DW_HDMI_I2S_AUDIO is not set ++# CONFIG_DRM_DW_HDMI_CEC is not set ++# end of Display Interface Bridges ++ ++# CONFIG_DRM_ETNAVIV is not set ++# CONFIG_DRM_ARCPGU is not set ++# CONFIG_DRM_HISI_HIBMC is not set ++# CONFIG_DRM_HISI_KIRIN is not set ++# CONFIG_DRM_MXSFB is not set ++# CONFIG_DRM_GM12U320 is not set ++# CONFIG_TINYDRM_HX8357D is not set ++# CONFIG_TINYDRM_ILI9225 is not set ++# CONFIG_TINYDRM_ILI9341 is not set ++# CONFIG_TINYDRM_MI0283QT is not set ++# CONFIG_TINYDRM_REPAPER is not set ++# CONFIG_TINYDRM_ST7586 is not set ++# CONFIG_TINYDRM_ST7735R is not set ++# CONFIG_DRM_PL111 is not set ++# CONFIG_DRM_LIMA is not set ++CONFIG_DRM_PANFROST=m ++# CONFIG_DRM_TIDSS is not set ++# CONFIG_DRM_LEGACY is not set ++CONFIG_DRM_PANEL_ORIENTATION_QUIRKS=y ++ ++# ++# Frame buffer Devices ++# ++CONFIG_FB_CMDLINE=y ++CONFIG_FB_NOTIFY=y ++CONFIG_FB=y ++# CONFIG_FIRMWARE_EDID is not set ++CONFIG_FB_CFB_FILLRECT=y ++CONFIG_FB_CFB_COPYAREA=y ++CONFIG_FB_CFB_IMAGEBLIT=y ++CONFIG_FB_SYS_FILLRECT=y ++CONFIG_FB_SYS_COPYAREA=y ++CONFIG_FB_SYS_IMAGEBLIT=y ++# CONFIG_FB_FOREIGN_ENDIAN is not set ++CONFIG_FB_SYS_FOPS=y ++CONFIG_FB_DEFERRED_IO=y ++CONFIG_FB_MODE_HELPERS=y ++# CONFIG_FB_TILEBLITTING is not set ++ ++# ++# Frame buffer hardware drivers ++# ++# CONFIG_FB_CIRRUS is not set ++# CONFIG_FB_PM2 is not set ++# CONFIG_FB_ARMCLCD is not set ++# CONFIG_FB_CYBER2000 is not set ++# CONFIG_FB_ASILIANT is not set ++# CONFIG_FB_IMSTT is not set ++# CONFIG_FB_UVESA is not set ++CONFIG_FB_EFI=y ++# CONFIG_FB_OPENCORES is not set ++# CONFIG_FB_S1D13XXX is not set ++# CONFIG_FB_NVIDIA is not set ++# CONFIG_FB_RIVA is not set ++# CONFIG_FB_I740 is not set ++# CONFIG_FB_MATROX is not set ++# CONFIG_FB_RADEON is not set ++# CONFIG_FB_ATY128 is not set ++# CONFIG_FB_ATY is not set ++# CONFIG_FB_S3 is not set ++# CONFIG_FB_SAVAGE is not set ++# CONFIG_FB_SIS is not set ++# CONFIG_FB_NEOMAGIC is not set ++# CONFIG_FB_KYRO is not set ++# CONFIG_FB_3DFX is not set ++# CONFIG_FB_VOODOO1 is not set ++# CONFIG_FB_VT8623 is not set ++# CONFIG_FB_TRIDENT is not set ++# CONFIG_FB_ARK is not set ++# CONFIG_FB_PM3 is not set ++# CONFIG_FB_CARMINE is not set ++# CONFIG_FB_SMSCUFX is not set ++# CONFIG_FB_UDL is not set ++# CONFIG_FB_IBM_GXT4500 is not set ++# CONFIG_FB_VIRTUAL is not set ++# CONFIG_FB_METRONOME is not set ++# CONFIG_FB_MB862XX is not set ++# CONFIG_FB_SIMPLE is not set ++# CONFIG_FB_SSD1307 is not set ++# CONFIG_FB_SM712 is not set ++# end of Frame buffer Devices ++ ++# ++# Backlight & LCD device support ++# ++CONFIG_LCD_CLASS_DEVICE=m ++# CONFIG_LCD_L4F00242T03 is not set ++# CONFIG_LCD_LMS283GF05 is not set ++# CONFIG_LCD_LTV350QV is not set ++# CONFIG_LCD_ILI922X is not set ++# CONFIG_LCD_ILI9320 is not set ++# CONFIG_LCD_TDO24M is not set ++# CONFIG_LCD_VGG2432A4 is not set ++# CONFIG_LCD_PLATFORM is not set ++# CONFIG_LCD_AMS369FG06 is not set ++# CONFIG_LCD_LMS501KF03 is not set ++# CONFIG_LCD_HX8357 is not set ++# CONFIG_LCD_OTM3225A is not set ++CONFIG_BACKLIGHT_CLASS_DEVICE=y ++CONFIG_BACKLIGHT_GENERIC=y ++# CONFIG_BACKLIGHT_QCOM_WLED is not set ++# CONFIG_BACKLIGHT_ADP8860 is not set ++# CONFIG_BACKLIGHT_ADP8870 is not set ++# CONFIG_BACKLIGHT_LM3639 is not set ++# CONFIG_BACKLIGHT_GPIO is not set ++# CONFIG_BACKLIGHT_LV5207LP is not set ++# CONFIG_BACKLIGHT_BD6107 is not set ++# CONFIG_BACKLIGHT_ARCXCNN is not set ++# end of Backlight & LCD device support ++ ++CONFIG_VIDEOMODE_HELPERS=y ++CONFIG_HDMI=y ++ ++# ++# Console display driver support ++# ++CONFIG_DUMMY_CONSOLE=y ++CONFIG_DUMMY_CONSOLE_COLUMNS=80 ++CONFIG_DUMMY_CONSOLE_ROWS=25 ++CONFIG_FRAMEBUFFER_CONSOLE=y ++CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY=y ++CONFIG_FRAMEBUFFER_CONSOLE_ROTATION=y ++# CONFIG_FRAMEBUFFER_CONSOLE_DEFERRED_TAKEOVER is not set ++# end of Console display driver support ++ ++CONFIG_LOGO=y ++# CONFIG_LOGO_LINUX_MONO is not set ++# CONFIG_LOGO_LINUX_VGA16 is not set ++CONFIG_LOGO_LINUX_CLUT224=y ++# end of Graphics support ++ ++CONFIG_SOUND=m ++CONFIG_SOUND_OSS_CORE=y ++CONFIG_SOUND_OSS_CORE_PRECLAIM=y ++CONFIG_SND=m ++CONFIG_SND_TIMER=m ++CONFIG_SND_PCM=m ++CONFIG_SND_DMAENGINE_PCM=m ++CONFIG_SND_HWDEP=m ++CONFIG_SND_SEQ_DEVICE=m ++CONFIG_SND_RAWMIDI=m ++CONFIG_SND_JACK=y ++CONFIG_SND_JACK_INPUT_DEV=y ++CONFIG_SND_OSSEMUL=y ++CONFIG_SND_MIXER_OSS=m ++CONFIG_SND_PCM_OSS=m ++CONFIG_SND_PCM_OSS_PLUGINS=y ++CONFIG_SND_PCM_TIMER=y ++CONFIG_SND_HRTIMER=m ++CONFIG_SND_DYNAMIC_MINORS=y ++CONFIG_SND_MAX_CARDS=32 ++# CONFIG_SND_SUPPORT_OLD_API is not set ++CONFIG_SND_PROC_FS=y ++CONFIG_SND_VERBOSE_PROCFS=y ++# CONFIG_SND_VERBOSE_PRINTK is not set ++# CONFIG_SND_DEBUG is not set ++CONFIG_SND_VMASTER=y ++CONFIG_SND_SEQUENCER=m ++# CONFIG_SND_SEQ_DUMMY is not set ++CONFIG_SND_SEQUENCER_OSS=m ++CONFIG_SND_SEQ_HRTIMER_DEFAULT=y ++CONFIG_SND_SEQ_MIDI_EVENT=m ++CONFIG_SND_SEQ_MIDI=m ++CONFIG_SND_AC97_CODEC=m ++CONFIG_SND_DRIVERS=y ++CONFIG_SND_DUMMY=m ++# CONFIG_SND_ALOOP is not set ++# CONFIG_SND_VIRMIDI is not set ++# CONFIG_SND_MTPAV is not set ++# CONFIG_SND_SERIAL_U16550 is not set ++# CONFIG_SND_MPU401 is not set ++# CONFIG_SND_AC97_POWER_SAVE is not set ++# CONFIG_SND_PCI is not set ++ ++# ++# HD-Audio ++# ++# end of HD-Audio ++ ++CONFIG_SND_HDA_PREALLOC_SIZE=64 ++# CONFIG_SND_SPI is not set ++CONFIG_SND_USB=y ++CONFIG_SND_USB_AUDIO=m ++# CONFIG_SND_USB_UA101 is not set ++# CONFIG_SND_USB_CAIAQ is not set ++# CONFIG_SND_USB_6FIRE is not set ++# CONFIG_SND_USB_HIFACE is not set ++# CONFIG_SND_BCD2000 is not set ++# CONFIG_SND_USB_POD is not set ++# CONFIG_SND_USB_PODHD is not set ++# CONFIG_SND_USB_TONEPORT is not set ++# CONFIG_SND_USB_VARIAX is not set ++CONFIG_SND_SOC=m ++CONFIG_SND_SOC_AC97_BUS=y ++CONFIG_SND_SOC_GENERIC_DMAENGINE_PCM=y ++# CONFIG_SND_SOC_AMD_ACP is not set ++# CONFIG_SND_ATMEL_SOC is not set ++CONFIG_SND_DESIGNWARE_I2S=m ++CONFIG_SND_DESIGNWARE_PCM=y ++ ++# ++# SoC Audio for Freescale CPUs ++# ++ ++# ++# Common SoC Audio options for Freescale CPUs: ++# ++# CONFIG_SND_SOC_FSL_ASRC is not set ++# CONFIG_SND_SOC_FSL_SAI is not set ++# CONFIG_SND_SOC_FSL_AUDMIX is not set ++# CONFIG_SND_SOC_FSL_SSI is not set ++# CONFIG_SND_SOC_FSL_SPDIF is not set ++# CONFIG_SND_SOC_FSL_ESAI is not set ++# CONFIG_SND_SOC_FSL_MICFIL is not set ++# CONFIG_SND_SOC_IMX_AUDMUX is not set ++# end of SoC Audio for Freescale CPUs ++ ++# CONFIG_SND_I2S_HI6210_I2S is not set ++# CONFIG_SND_SOC_IMG is not set ++# CONFIG_SND_SOC_MTK_BTCVSD is not set ++# CONFIG_SND_SOC_SOF_TOPLEVEL is not set ++ ++# ++# STMicroelectronics STM32 SOC audio support ++# ++# end of STMicroelectronics STM32 SOC audio support ++ ++# CONFIG_SND_SOC_XILINX_I2S is not set ++# CONFIG_SND_SOC_XILINX_AUDIO_FORMATTER is not set ++# CONFIG_SND_SOC_XILINX_SPDIF is not set ++# CONFIG_SND_SOC_XTFPGA_I2S is not set ++# CONFIG_ZX_TDM is not set ++CONFIG_SND_SOC_I2C_AND_SPI=m ++ ++# ++# CODEC drivers ++# ++CONFIG_SND_SOC_AC97_CODEC=m ++# CONFIG_SND_SOC_ADAU1701 is not set ++# CONFIG_SND_SOC_ADAU1761_I2C is not set ++# CONFIG_SND_SOC_ADAU1761_SPI is not set ++# CONFIG_SND_SOC_ADAU7002 is not set ++# CONFIG_SND_SOC_ADAU7118_HW is not set ++# CONFIG_SND_SOC_ADAU7118_I2C is not set ++# CONFIG_SND_SOC_AK4104 is not set ++# CONFIG_SND_SOC_AK4118 is not set ++# CONFIG_SND_SOC_AK4458 is not set ++# CONFIG_SND_SOC_AK4554 is not set ++# CONFIG_SND_SOC_AK4613 is not set ++# CONFIG_SND_SOC_AK4642 is not set ++# CONFIG_SND_SOC_AK5386 is not set ++# CONFIG_SND_SOC_AK5558 is not set ++# CONFIG_SND_SOC_ALC5623 is not set ++# CONFIG_SND_SOC_BD28623 is not set ++# CONFIG_SND_SOC_BT_SCO is not set ++# CONFIG_SND_SOC_CS35L32 is not set ++# CONFIG_SND_SOC_CS35L33 is not set ++# CONFIG_SND_SOC_CS35L34 is not set ++# CONFIG_SND_SOC_CS35L35 is not set ++# CONFIG_SND_SOC_CS35L36 is not set ++# CONFIG_SND_SOC_CS42L42 is not set ++# CONFIG_SND_SOC_CS42L51_I2C is not set ++# CONFIG_SND_SOC_CS42L52 is not set ++# CONFIG_SND_SOC_CS42L56 is not set ++# CONFIG_SND_SOC_CS42L73 is not set ++# CONFIG_SND_SOC_CS4265 is not set ++# CONFIG_SND_SOC_CS4270 is not set ++# CONFIG_SND_SOC_CS4271_I2C is not set ++# CONFIG_SND_SOC_CS4271_SPI is not set ++# CONFIG_SND_SOC_CS42XX8_I2C is not set ++# CONFIG_SND_SOC_CS43130 is not set ++# CONFIG_SND_SOC_CS4341 is not set ++# CONFIG_SND_SOC_CS4349 is not set ++# CONFIG_SND_SOC_CS53L30 is not set ++# CONFIG_SND_SOC_CX2072X is not set ++# CONFIG_SND_SOC_DA7213 is not set ++# CONFIG_SND_SOC_DMIC is not set ++# CONFIG_SND_SOC_ES7134 is not set ++# CONFIG_SND_SOC_ES7241 is not set ++# CONFIG_SND_SOC_ES8316 is not set ++# CONFIG_SND_SOC_ES8328_I2C is not set ++# CONFIG_SND_SOC_ES8328_SPI is not set ++# CONFIG_SND_SOC_GTM601 is not set ++# CONFIG_SND_SOC_INNO_RK3036 is not set ++# CONFIG_SND_SOC_MAX98088 is not set ++# CONFIG_SND_SOC_MAX98357A is not set ++# CONFIG_SND_SOC_MAX98504 is not set ++# CONFIG_SND_SOC_MAX9867 is not set ++# CONFIG_SND_SOC_MAX98927 is not set ++# CONFIG_SND_SOC_MAX98373 is not set ++# CONFIG_SND_SOC_MAX9860 is not set ++# CONFIG_SND_SOC_MSM8916_WCD_DIGITAL is not set ++# CONFIG_SND_SOC_PCM1681 is not set ++# CONFIG_SND_SOC_PCM1789_I2C is not set ++# CONFIG_SND_SOC_PCM179X_I2C is not set ++# CONFIG_SND_SOC_PCM179X_SPI is not set ++# CONFIG_SND_SOC_PCM186X_I2C is not set ++# CONFIG_SND_SOC_PCM186X_SPI is not set ++# CONFIG_SND_SOC_PCM3060_I2C is not set ++# CONFIG_SND_SOC_PCM3060_SPI is not set ++# CONFIG_SND_SOC_PCM3168A_I2C is not set ++# CONFIG_SND_SOC_PCM3168A_SPI is not set ++# CONFIG_SND_SOC_PCM512x_I2C is not set ++# CONFIG_SND_SOC_PCM512x_SPI is not set ++# CONFIG_SND_SOC_RK3328 is not set ++# CONFIG_SND_SOC_RT5616 is not set ++# CONFIG_SND_SOC_RT5631 is not set ++# CONFIG_SND_SOC_SGTL5000 is not set ++# CONFIG_SND_SOC_SIMPLE_AMPLIFIER is not set ++# CONFIG_SND_SOC_SIRF_AUDIO_CODEC is not set ++CONFIG_SND_SOC_SPDIF=m ++# CONFIG_SND_SOC_SSM2305 is not set ++# CONFIG_SND_SOC_SSM2602_SPI is not set ++# CONFIG_SND_SOC_SSM2602_I2C is not set ++# CONFIG_SND_SOC_SSM4567 is not set ++# CONFIG_SND_SOC_STA32X is not set ++# CONFIG_SND_SOC_STA350 is not set ++# CONFIG_SND_SOC_STI_SAS is not set ++# CONFIG_SND_SOC_TAS2552 is not set ++# CONFIG_SND_SOC_TAS2562 is not set ++# CONFIG_SND_SOC_TAS2770 is not set ++# CONFIG_SND_SOC_TAS5086 is not set ++# CONFIG_SND_SOC_TAS571X is not set ++# CONFIG_SND_SOC_TAS5720 is not set ++# CONFIG_SND_SOC_TAS6424 is not set ++# CONFIG_SND_SOC_TDA7419 is not set ++# CONFIG_SND_SOC_TFA9879 is not set ++# CONFIG_SND_SOC_TLV320AIC23_I2C is not set ++# CONFIG_SND_SOC_TLV320AIC23_SPI is not set ++# CONFIG_SND_SOC_TLV320AIC31XX is not set ++# CONFIG_SND_SOC_TLV320AIC32X4_I2C is not set ++# CONFIG_SND_SOC_TLV320AIC32X4_SPI is not set ++CONFIG_SND_SOC_TLV320AIC3X=m ++# CONFIG_SND_SOC_TS3A227E is not set ++# CONFIG_SND_SOC_TSCS42XX is not set ++# CONFIG_SND_SOC_TSCS454 is not set ++# CONFIG_SND_SOC_UDA1334 is not set ++# CONFIG_SND_SOC_WM8510 is not set ++# CONFIG_SND_SOC_WM8523 is not set ++# CONFIG_SND_SOC_WM8524 is not set ++# CONFIG_SND_SOC_WM8580 is not set ++# CONFIG_SND_SOC_WM8711 is not set ++# CONFIG_SND_SOC_WM8728 is not set ++# CONFIG_SND_SOC_WM8731 is not set ++# CONFIG_SND_SOC_WM8737 is not set ++# CONFIG_SND_SOC_WM8741 is not set ++# CONFIG_SND_SOC_WM8750 is not set ++# CONFIG_SND_SOC_WM8753 is not set ++# CONFIG_SND_SOC_WM8770 is not set ++# CONFIG_SND_SOC_WM8776 is not set ++# CONFIG_SND_SOC_WM8782 is not set ++# CONFIG_SND_SOC_WM8804_I2C is not set ++# CONFIG_SND_SOC_WM8804_SPI is not set ++# CONFIG_SND_SOC_WM8903 is not set ++# CONFIG_SND_SOC_WM8904 is not set ++# CONFIG_SND_SOC_WM8960 is not set ++# CONFIG_SND_SOC_WM8962 is not set ++# CONFIG_SND_SOC_WM8974 is not set ++# CONFIG_SND_SOC_WM8978 is not set ++# CONFIG_SND_SOC_WM8985 is not set ++# CONFIG_SND_SOC_ZX_AUD96P22 is not set ++# CONFIG_SND_SOC_MAX9759 is not set ++# CONFIG_SND_SOC_MT6351 is not set ++# CONFIG_SND_SOC_MT6358 is not set ++# CONFIG_SND_SOC_MT6660 is not set ++# CONFIG_SND_SOC_NAU8540 is not set ++# CONFIG_SND_SOC_NAU8810 is not set ++CONFIG_SND_SOC_NAU8822=m ++# CONFIG_SND_SOC_NAU8824 is not set ++# CONFIG_SND_SOC_TPA6130A2 is not set ++# end of CODEC drivers ++ ++CONFIG_SND_SIMPLE_CARD_UTILS=m ++CONFIG_SND_SIMPLE_CARD=m ++CONFIG_SND_AUDIO_GRAPH_CARD=m ++CONFIG_AC97_BUS=m ++ ++# ++# HID support ++# ++CONFIG_HID=y ++CONFIG_HID_BATTERY_STRENGTH=y ++CONFIG_HIDRAW=y ++CONFIG_UHID=m ++CONFIG_HID_GENERIC=y ++ ++# ++# Special HID drivers ++# ++# CONFIG_HID_A4TECH is not set ++# CONFIG_HID_ACCUTOUCH is not set ++# CONFIG_HID_ACRUX is not set ++# CONFIG_HID_APPLE is not set ++# CONFIG_HID_APPLEIR is not set ++# CONFIG_HID_AUREAL is not set ++# CONFIG_HID_BELKIN is not set ++# CONFIG_HID_BETOP_FF is not set ++# CONFIG_HID_CHERRY is not set ++# CONFIG_HID_CHICONY is not set ++# CONFIG_HID_COUGAR is not set ++# CONFIG_HID_MACALLY is not set ++# CONFIG_HID_PRODIKEYS is not set ++# CONFIG_HID_CMEDIA is not set ++# CONFIG_HID_CP2112 is not set ++# CONFIG_HID_CREATIVE_SB0540 is not set ++# CONFIG_HID_CYPRESS is not set ++# CONFIG_HID_DRAGONRISE is not set ++# CONFIG_HID_EMS_FF is not set ++# CONFIG_HID_ELECOM is not set ++# CONFIG_HID_ELO is not set ++# CONFIG_HID_EZKEY is not set ++# CONFIG_HID_GEMBIRD is not set ++# CONFIG_HID_GFRM is not set ++# CONFIG_HID_HOLTEK is not set ++# CONFIG_HID_KEYTOUCH is not set ++# CONFIG_HID_KYE is not set ++# CONFIG_HID_UCLOGIC is not set ++# CONFIG_HID_WALTOP is not set ++# CONFIG_HID_VIEWSONIC is not set ++# CONFIG_HID_GYRATION is not set ++# CONFIG_HID_ICADE is not set ++# CONFIG_HID_ITE is not set ++# CONFIG_HID_JABRA is not set ++# CONFIG_HID_TWINHAN is not set ++# CONFIG_HID_KENSINGTON is not set ++# CONFIG_HID_LCPOWER is not set ++# CONFIG_HID_LENOVO is not set ++# CONFIG_HID_MAGICMOUSE is not set ++# CONFIG_HID_MALTRON is not set ++# CONFIG_HID_MAYFLASH is not set ++# CONFIG_HID_REDRAGON is not set ++# CONFIG_HID_MICROSOFT is not set ++# CONFIG_HID_MONTEREY is not set ++# CONFIG_HID_MULTITOUCH is not set ++# CONFIG_HID_NTI is not set ++# CONFIG_HID_NTRIG is not set ++# CONFIG_HID_ORTEK is not set ++# CONFIG_HID_PANTHERLORD is not set ++# CONFIG_HID_PENMOUNT is not set ++# CONFIG_HID_PETALYNX is not set ++# CONFIG_HID_PICOLCD is not set ++# CONFIG_HID_PLANTRONICS is not set ++# CONFIG_HID_PRIMAX is not set ++# CONFIG_HID_RETRODE is not set ++# CONFIG_HID_ROCCAT is not set ++# CONFIG_HID_SAITEK is not set ++# CONFIG_HID_SAMSUNG is not set ++# CONFIG_HID_SPEEDLINK is not set ++# CONFIG_HID_STEAM is not set ++# CONFIG_HID_STEELSERIES is not set ++# CONFIG_HID_SUNPLUS is not set ++# CONFIG_HID_RMI is not set ++# CONFIG_HID_GREENASIA is not set ++# CONFIG_HID_SMARTJOYPLUS is not set ++# CONFIG_HID_TIVO is not set ++# CONFIG_HID_TOPSEED is not set ++# CONFIG_HID_THRUSTMASTER is not set ++# CONFIG_HID_UDRAW_PS3 is not set ++# CONFIG_HID_WACOM is not set ++# CONFIG_HID_XINMO is not set ++# CONFIG_HID_ZEROPLUS is not set ++# CONFIG_HID_ZYDACRON is not set ++# CONFIG_HID_SENSOR_HUB is not set ++# CONFIG_HID_ALPS is not set ++# end of Special HID drivers ++ ++# ++# USB HID support ++# ++CONFIG_USB_HID=y ++CONFIG_HID_PID=y ++CONFIG_USB_HIDDEV=y ++# end of USB HID support ++ ++# ++# I2C HID support ++# ++# CONFIG_I2C_HID is not set ++# end of I2C HID support ++# end of HID support ++ ++CONFIG_USB_OHCI_LITTLE_ENDIAN=y ++CONFIG_USB_SUPPORT=y ++CONFIG_USB_COMMON=y ++CONFIG_USB_ULPI_BUS=y ++# CONFIG_USB_CONN_GPIO is not set ++CONFIG_USB_ARCH_HAS_HCD=y ++CONFIG_USB=y ++CONFIG_USB_PCI=y ++# CONFIG_USB_ANNOUNCE_NEW_DEVICES is not set ++ ++# ++# Miscellaneous USB options ++# ++CONFIG_USB_DEFAULT_PERSIST=y ++# CONFIG_USB_DYNAMIC_MINORS is not set ++# CONFIG_USB_OTG is not set ++# CONFIG_USB_OTG_WHITELIST is not set ++CONFIG_USB_AUTOSUSPEND_DELAY=2 ++CONFIG_USB_MON=m ++ ++# ++# USB Host Controller Drivers ++# ++# CONFIG_USB_C67X00_HCD is not set ++CONFIG_USB_XHCI_HCD=y ++# CONFIG_USB_XHCI_DBGCAP is not set ++CONFIG_USB_XHCI_PCI=y ++CONFIG_USB_XHCI_PLATFORM=y ++CONFIG_USB_EHCI_HCD=m ++CONFIG_USB_EHCI_ROOT_HUB_TT=y ++CONFIG_USB_EHCI_TT_NEWSCHED=y ++CONFIG_USB_EHCI_PCI=m ++# CONFIG_USB_EHCI_FSL is not set ++CONFIG_USB_EHCI_HCD_PLATFORM=m ++# CONFIG_USB_OXU210HP_HCD is not set ++# CONFIG_USB_ISP116X_HCD is not set ++# CONFIG_USB_FOTG210_HCD is not set ++# CONFIG_USB_MAX3421_HCD is not set ++CONFIG_USB_OHCI_HCD=m ++CONFIG_USB_OHCI_HCD_PCI=m ++CONFIG_USB_OHCI_HCD_PLATFORM=m ++# CONFIG_USB_UHCI_HCD is not set ++# CONFIG_USB_SL811_HCD is not set ++# CONFIG_USB_R8A66597_HCD is not set ++# CONFIG_USB_HCD_TEST_MODE is not set ++ ++# ++# USB Device Class drivers ++# ++# CONFIG_USB_ACM is not set ++# CONFIG_USB_PRINTER is not set ++# CONFIG_USB_WDM is not set ++# CONFIG_USB_TMC is not set ++ ++# ++# NOTE: USB_STORAGE depends on SCSI but BLK_DEV_SD may ++# ++ ++# ++# also be needed; see USB_STORAGE Help for more info ++# ++CONFIG_USB_STORAGE=y ++# CONFIG_USB_STORAGE_DEBUG is not set ++# CONFIG_USB_STORAGE_REALTEK is not set ++# CONFIG_USB_STORAGE_DATAFAB is not set ++# CONFIG_USB_STORAGE_FREECOM is not set ++# CONFIG_USB_STORAGE_ISD200 is not set ++# CONFIG_USB_STORAGE_USBAT is not set ++# CONFIG_USB_STORAGE_SDDR09 is not set ++# CONFIG_USB_STORAGE_SDDR55 is not set ++# CONFIG_USB_STORAGE_JUMPSHOT is not set ++# CONFIG_USB_STORAGE_ALAUDA is not set ++# CONFIG_USB_STORAGE_ONETOUCH is not set ++# CONFIG_USB_STORAGE_KARMA is not set ++# CONFIG_USB_STORAGE_CYPRESS_ATACB is not set ++# CONFIG_USB_STORAGE_ENE_UB6250 is not set ++CONFIG_USB_UAS=y ++ ++# ++# USB Imaging devices ++# ++# CONFIG_USB_MDC800 is not set ++# CONFIG_USB_MICROTEK is not set ++# CONFIG_USBIP_CORE is not set ++# CONFIG_USB_CDNS3 is not set ++# CONFIG_USB_MUSB_HDRC is not set ++CONFIG_USB_DWC3=y ++CONFIG_USB_DWC3_ULPI=y ++CONFIG_USB_DWC3_HOST=y ++ ++# ++# Platform Glue Driver Support ++# ++CONFIG_USB_DWC3_HAPS=y ++CONFIG_USB_DWC3_OF_SIMPLE=y ++CONFIG_USB_DWC3_BAIKAL=y ++# CONFIG_USB_DWC2 is not set ++# CONFIG_USB_CHIPIDEA is not set ++# CONFIG_USB_ISP1760 is not set ++ ++# ++# USB port drivers ++# ++CONFIG_USB_SERIAL=m ++CONFIG_USB_SERIAL_GENERIC=y ++CONFIG_USB_SERIAL_SIMPLE=m ++# CONFIG_USB_SERIAL_AIRCABLE is not set ++# CONFIG_USB_SERIAL_ARK3116 is not set ++# CONFIG_USB_SERIAL_BELKIN is not set ++CONFIG_USB_SERIAL_CH341=m ++# CONFIG_USB_SERIAL_WHITEHEAT is not set ++# CONFIG_USB_SERIAL_DIGI_ACCELEPORT is not set ++CONFIG_USB_SERIAL_CP210X=m ++# CONFIG_USB_SERIAL_CYPRESS_M8 is not set ++# CONFIG_USB_SERIAL_EMPEG is not set ++CONFIG_USB_SERIAL_FTDI_SIO=m ++# CONFIG_USB_SERIAL_VISOR is not set ++# CONFIG_USB_SERIAL_IPAQ is not set ++# CONFIG_USB_SERIAL_IR is not set ++# CONFIG_USB_SERIAL_EDGEPORT is not set ++# CONFIG_USB_SERIAL_EDGEPORT_TI is not set ++# CONFIG_USB_SERIAL_F81232 is not set ++# CONFIG_USB_SERIAL_F8153X is not set ++# CONFIG_USB_SERIAL_GARMIN is not set ++# CONFIG_USB_SERIAL_IPW is not set ++# CONFIG_USB_SERIAL_IUU is not set ++# CONFIG_USB_SERIAL_KEYSPAN_PDA is not set ++# CONFIG_USB_SERIAL_KEYSPAN is not set ++# CONFIG_USB_SERIAL_KLSI is not set ++# CONFIG_USB_SERIAL_KOBIL_SCT is not set ++# CONFIG_USB_SERIAL_MCT_U232 is not set ++# CONFIG_USB_SERIAL_METRO is not set ++# CONFIG_USB_SERIAL_MOS7720 is not set ++# CONFIG_USB_SERIAL_MOS7840 is not set ++# CONFIG_USB_SERIAL_MXUPORT is not set ++# CONFIG_USB_SERIAL_NAVMAN is not set ++CONFIG_USB_SERIAL_PL2303=m ++# CONFIG_USB_SERIAL_OTI6858 is not set ++# CONFIG_USB_SERIAL_QCAUX is not set ++# CONFIG_USB_SERIAL_QUALCOMM is not set ++# CONFIG_USB_SERIAL_SPCP8X5 is not set ++# CONFIG_USB_SERIAL_SAFE is not set ++# CONFIG_USB_SERIAL_SIERRAWIRELESS is not set ++# CONFIG_USB_SERIAL_SYMBOL is not set ++# CONFIG_USB_SERIAL_TI is not set ++# CONFIG_USB_SERIAL_CYBERJACK is not set ++# CONFIG_USB_SERIAL_XIRCOM is not set ++CONFIG_USB_SERIAL_WWAN=m ++CONFIG_USB_SERIAL_OPTION=m ++# CONFIG_USB_SERIAL_OMNINET is not set ++# CONFIG_USB_SERIAL_OPTICON is not set ++# CONFIG_USB_SERIAL_XSENS_MT is not set ++# CONFIG_USB_SERIAL_WISHBONE is not set ++# CONFIG_USB_SERIAL_SSU100 is not set ++# CONFIG_USB_SERIAL_QT2 is not set ++# CONFIG_USB_SERIAL_UPD78F0730 is not set ++# CONFIG_USB_SERIAL_DEBUG is not set ++ ++# ++# USB Miscellaneous drivers ++# ++# CONFIG_USB_EMI62 is not set ++# CONFIG_USB_EMI26 is not set ++# CONFIG_USB_ADUTUX is not set ++# CONFIG_USB_SEVSEG is not set ++# CONFIG_USB_LEGOTOWER is not set ++# CONFIG_USB_LCD is not set ++# CONFIG_USB_CYPRESS_CY7C63 is not set ++# CONFIG_USB_CYTHERM is not set ++# CONFIG_USB_IDMOUSE is not set ++# CONFIG_USB_FTDI_ELAN is not set ++# CONFIG_USB_APPLEDISPLAY is not set ++# CONFIG_USB_SISUSBVGA is not set ++# CONFIG_USB_LD is not set ++# CONFIG_USB_TRANCEVIBRATOR is not set ++# CONFIG_USB_IOWARRIOR is not set ++# CONFIG_USB_TEST is not set ++# CONFIG_USB_EHSET_TEST_FIXTURE is not set ++# CONFIG_USB_ISIGHTFW is not set ++# CONFIG_USB_YUREX is not set ++# CONFIG_USB_EZUSB_FX2 is not set ++# CONFIG_USB_HUB_USB251XB is not set ++# CONFIG_USB_HSIC_USB3503 is not set ++# CONFIG_USB_HSIC_USB4604 is not set ++# CONFIG_USB_LINK_LAYER_TEST is not set ++# CONFIG_USB_CHAOSKEY is not set ++ ++# ++# USB Physical Layer drivers ++# ++# CONFIG_NOP_USB_XCEIV is not set ++# CONFIG_USB_GPIO_VBUS is not set ++# CONFIG_USB_ISP1301 is not set ++CONFIG_USB_ULPI=y ++CONFIG_USB_ULPI_VIEWPORT=y ++# end of USB Physical Layer drivers ++ ++# CONFIG_USB_GADGET is not set ++# CONFIG_TYPEC is not set ++# CONFIG_USB_ROLE_SWITCH is not set ++CONFIG_MMC=m ++CONFIG_PWRSEQ_EMMC=m ++CONFIG_PWRSEQ_SIMPLE=m ++CONFIG_MMC_BLOCK=m ++CONFIG_MMC_BLOCK_MINORS=8 ++# CONFIG_SDIO_UART is not set ++# CONFIG_MMC_TEST is not set ++ ++# ++# MMC/SD/SDIO Host Controller Drivers ++# ++# CONFIG_MMC_DEBUG is not set ++# CONFIG_MMC_ARMMMCI is not set ++CONFIG_MMC_SDHCI=m ++# CONFIG_MMC_SDHCI_PCI is not set ++CONFIG_MMC_SDHCI_PLTFM=m ++CONFIG_MMC_SDHCI_OF_ARASAN=m ++# CONFIG_MMC_SDHCI_OF_ASPEED is not set ++CONFIG_MMC_SDHCI_OF_AT91=m ++CONFIG_MMC_SDHCI_OF_DWCMSHC=m ++# CONFIG_MMC_SDHCI_CADENCE is not set ++# CONFIG_MMC_SDHCI_F_SDH30 is not set ++# CONFIG_MMC_SDHCI_MILBEAUT is not set ++# CONFIG_MMC_TIFM_SD is not set ++# CONFIG_MMC_SPI is not set ++# CONFIG_MMC_CB710 is not set ++# CONFIG_MMC_VIA_SDMMC is not set ++# CONFIG_MMC_DW is not set ++CONFIG_MMC_VUB300=m ++CONFIG_MMC_USHC=m ++# CONFIG_MMC_USDHI6ROL0 is not set ++CONFIG_MMC_CQHCI=m ++# CONFIG_MMC_TOSHIBA_PCI is not set ++# CONFIG_MMC_MTK is not set ++# CONFIG_MMC_SDHCI_XENON is not set ++# CONFIG_MMC_SDHCI_OMAP is not set ++# CONFIG_MMC_SDHCI_AM654 is not set ++# CONFIG_MEMSTICK is not set ++# CONFIG_NEW_LEDS is not set ++# CONFIG_ACCESSIBILITY is not set ++# CONFIG_INFINIBAND is not set ++CONFIG_EDAC_SUPPORT=y ++# CONFIG_EDAC is not set ++CONFIG_RTC_LIB=y ++CONFIG_RTC_CLASS=y ++CONFIG_RTC_HCTOSYS=y ++CONFIG_RTC_HCTOSYS_DEVICE="rtc0" ++CONFIG_RTC_SYSTOHC=y ++CONFIG_RTC_SYSTOHC_DEVICE="rtc0" ++# CONFIG_RTC_DEBUG is not set ++CONFIG_RTC_NVMEM=y ++ ++# ++# RTC interfaces ++# ++CONFIG_RTC_INTF_SYSFS=y ++CONFIG_RTC_INTF_PROC=y ++CONFIG_RTC_INTF_DEV=y ++# CONFIG_RTC_INTF_DEV_UIE_EMUL is not set ++# CONFIG_RTC_DRV_TEST is not set ++ ++# ++# I2C RTC drivers ++# ++# CONFIG_RTC_DRV_ABB5ZES3 is not set ++CONFIG_RTC_DRV_ABEOZ9=m ++# CONFIG_RTC_DRV_ABX80X is not set ++# CONFIG_RTC_DRV_DS1307 is not set ++# CONFIG_RTC_DRV_DS1374 is not set ++# CONFIG_RTC_DRV_DS1672 is not set ++# CONFIG_RTC_DRV_HYM8563 is not set ++# CONFIG_RTC_DRV_MAX6900 is not set ++# CONFIG_RTC_DRV_RS5C372 is not set ++# CONFIG_RTC_DRV_ISL1208 is not set ++# CONFIG_RTC_DRV_ISL12022 is not set ++# CONFIG_RTC_DRV_ISL12026 is not set ++# CONFIG_RTC_DRV_X1205 is not set ++# CONFIG_RTC_DRV_PCF8523 is not set ++# CONFIG_RTC_DRV_PCF85063 is not set ++# CONFIG_RTC_DRV_PCF85363 is not set ++# CONFIG_RTC_DRV_PCF8563 is not set ++# CONFIG_RTC_DRV_PCF8583 is not set ++# CONFIG_RTC_DRV_M41T80 is not set ++# CONFIG_RTC_DRV_BQ32K is not set ++# CONFIG_RTC_DRV_S35390A is not set ++# CONFIG_RTC_DRV_FM3130 is not set ++# CONFIG_RTC_DRV_RX8010 is not set ++# CONFIG_RTC_DRV_RX8581 is not set ++# CONFIG_RTC_DRV_RX8025 is not set ++# CONFIG_RTC_DRV_EM3027 is not set ++# CONFIG_RTC_DRV_RV3028 is not set ++# CONFIG_RTC_DRV_RV8803 is not set ++# CONFIG_RTC_DRV_SD3078 is not set ++ ++# ++# SPI RTC drivers ++# ++# CONFIG_RTC_DRV_M41T93 is not set ++# CONFIG_RTC_DRV_M41T94 is not set ++# CONFIG_RTC_DRV_DS1302 is not set ++# CONFIG_RTC_DRV_DS1305 is not set ++# CONFIG_RTC_DRV_DS1343 is not set ++# CONFIG_RTC_DRV_DS1347 is not set ++# CONFIG_RTC_DRV_DS1390 is not set ++# CONFIG_RTC_DRV_MAX6916 is not set ++# CONFIG_RTC_DRV_R9701 is not set ++# CONFIG_RTC_DRV_RX4581 is not set ++# CONFIG_RTC_DRV_RX6110 is not set ++# CONFIG_RTC_DRV_RS5C348 is not set ++# CONFIG_RTC_DRV_MAX6902 is not set ++# CONFIG_RTC_DRV_PCF2123 is not set ++# CONFIG_RTC_DRV_MCP795 is not set ++CONFIG_RTC_I2C_AND_SPI=y ++ ++# ++# SPI and I2C RTC drivers ++# ++# CONFIG_RTC_DRV_DS3232 is not set ++CONFIG_RTC_DRV_PCF2127=y ++# CONFIG_RTC_DRV_RV3029C2 is not set ++ ++# ++# Platform RTC drivers ++# ++# CONFIG_RTC_DRV_DS1286 is not set ++# CONFIG_RTC_DRV_DS1511 is not set ++# CONFIG_RTC_DRV_DS1553 is not set ++# CONFIG_RTC_DRV_DS1685_FAMILY is not set ++# CONFIG_RTC_DRV_DS1742 is not set ++# CONFIG_RTC_DRV_DS2404 is not set ++# CONFIG_RTC_DRV_EFI is not set ++# CONFIG_RTC_DRV_STK17TA8 is not set ++# CONFIG_RTC_DRV_M48T86 is not set ++# CONFIG_RTC_DRV_M48T35 is not set ++# CONFIG_RTC_DRV_M48T59 is not set ++# CONFIG_RTC_DRV_MSM6242 is not set ++# CONFIG_RTC_DRV_BQ4802 is not set ++# CONFIG_RTC_DRV_RP5C01 is not set ++# CONFIG_RTC_DRV_V3020 is not set ++# CONFIG_RTC_DRV_ZYNQMP is not set ++ ++# ++# on-CPU RTC drivers ++# ++# CONFIG_RTC_DRV_PL030 is not set ++# CONFIG_RTC_DRV_PL031 is not set ++# CONFIG_RTC_DRV_CADENCE is not set ++# CONFIG_RTC_DRV_FTRTC010 is not set ++# CONFIG_RTC_DRV_SNVS is not set ++# CONFIG_RTC_DRV_R7301 is not set ++ ++# ++# HID Sensor RTC drivers ++# ++CONFIG_DMADEVICES=y ++# CONFIG_DMADEVICES_DEBUG is not set ++ ++# ++# DMA Devices ++# ++CONFIG_DMA_ENGINE=y ++CONFIG_DMA_OF=y ++# CONFIG_ALTERA_MSGDMA is not set ++# CONFIG_AMBA_PL08X is not set ++# CONFIG_BCM_SBA_RAID is not set ++# CONFIG_DW_AXI_DMAC is not set ++# CONFIG_FSL_EDMA is not set ++# CONFIG_FSL_QDMA is not set ++# CONFIG_HISI_DMA is not set ++# CONFIG_INTEL_IDMA64 is not set ++# CONFIG_MV_XOR_V2 is not set ++# CONFIG_PL330_DMA is not set ++# CONFIG_PLX_DMA is not set ++# CONFIG_XILINX_DMA is not set ++# CONFIG_XILINX_ZYNQMP_DMA is not set ++# CONFIG_QCOM_HIDMA_MGMT is not set ++# CONFIG_QCOM_HIDMA is not set ++# CONFIG_DW_DMAC is not set ++# CONFIG_DW_DMAC_PCI is not set ++# CONFIG_DW_EDMA is not set ++# CONFIG_DW_EDMA_PCIE is not set ++# CONFIG_SF_PDMA is not set ++ ++# ++# DMA Clients ++# ++# CONFIG_ASYNC_TX_DMA is not set ++# CONFIG_DMATEST is not set ++ ++# ++# DMABUF options ++# ++CONFIG_SYNC_FILE=y ++# CONFIG_SW_SYNC is not set ++# CONFIG_UDMABUF is not set ++# CONFIG_DMABUF_SELFTESTS is not set ++# CONFIG_DMABUF_HEAPS is not set ++# end of DMABUF options ++ ++# CONFIG_AUXDISPLAY is not set ++# CONFIG_UIO is not set ++# CONFIG_VFIO is not set ++# CONFIG_VIRT_DRIVERS is not set ++# CONFIG_VIRTIO_MENU is not set ++ ++# ++# Microsoft Hyper-V guest support ++# ++# end of Microsoft Hyper-V guest support ++ ++# CONFIG_GREYBUS is not set ++# CONFIG_STAGING is not set ++# CONFIG_GOLDFISH is not set ++# CONFIG_MFD_CROS_EC is not set ++# CONFIG_CHROME_PLATFORMS is not set ++# CONFIG_MELLANOX_PLATFORM is not set ++CONFIG_CLKDEV_LOOKUP=y ++CONFIG_HAVE_CLK_PREPARE=y ++CONFIG_COMMON_CLK=y ++ ++# ++# Common Clock Framework ++# ++CONFIG_COMMON_CLK_VERSATILE=y ++# CONFIG_CLK_SP810 is not set ++# CONFIG_CLK_HSDK is not set ++# CONFIG_COMMON_CLK_MAX9485 is not set ++# CONFIG_COMMON_CLK_SI5341 is not set ++# CONFIG_COMMON_CLK_SI5351 is not set ++# CONFIG_COMMON_CLK_SI514 is not set ++# CONFIG_COMMON_CLK_SI544 is not set ++# CONFIG_COMMON_CLK_SI570 is not set ++# CONFIG_COMMON_CLK_CDCE706 is not set ++# CONFIG_COMMON_CLK_CDCE925 is not set ++# CONFIG_COMMON_CLK_CS2000_CP is not set ++# CONFIG_CLK_QORIQ is not set ++# CONFIG_COMMON_CLK_XGENE is not set ++# CONFIG_COMMON_CLK_VC5 is not set ++# CONFIG_COMMON_CLK_FIXED_MMIO is not set ++# end of Common Clock Framework ++ ++# CONFIG_HWSPINLOCK is not set ++ ++# ++# Clock Source drivers ++# ++CONFIG_TIMER_OF=y ++CONFIG_TIMER_PROBE=y ++CONFIG_DW_APB_TIMER=y ++CONFIG_DW_APB_TIMER_OF=y ++CONFIG_ARM_ARCH_TIMER=y ++CONFIG_ARM_ARCH_TIMER_EVTSTREAM=y ++CONFIG_ARM_ARCH_TIMER_OOL_WORKAROUND=y ++# CONFIG_FSL_ERRATUM_A008585 is not set ++CONFIG_HISILICON_ERRATUM_161010101=y ++CONFIG_ARM64_ERRATUM_858921=y ++# CONFIG_MICROCHIP_PIT64B is not set ++# end of Clock Source drivers ++ ++CONFIG_MAILBOX=y ++CONFIG_ARM_MHU=m ++# CONFIG_PLATFORM_MHU is not set ++# CONFIG_PL320_MBOX is not set ++# CONFIG_ALTERA_MBOX is not set ++# CONFIG_MAILBOX_TEST is not set ++CONFIG_IOMMU_IOVA=y ++CONFIG_IOMMU_API=y ++CONFIG_IOMMU_SUPPORT=y ++ ++# ++# Generic IOMMU Pagetable Support ++# ++CONFIG_IOMMU_IO_PGTABLE=y ++CONFIG_IOMMU_IO_PGTABLE_LPAE=y ++# CONFIG_IOMMU_IO_PGTABLE_LPAE_SELFTEST is not set ++# CONFIG_IOMMU_IO_PGTABLE_ARMV7S is not set ++# end of Generic IOMMU Pagetable Support ++ ++# CONFIG_IOMMU_DEBUGFS is not set ++# CONFIG_IOMMU_DEFAULT_PASSTHROUGH is not set ++CONFIG_OF_IOMMU=y ++CONFIG_IOMMU_DMA=y ++CONFIG_ARM_SMMU=y ++# CONFIG_ARM_SMMU_LEGACY_DT_BINDINGS is not set ++CONFIG_ARM_SMMU_DISABLE_BYPASS_BY_DEFAULT=y ++CONFIG_ARM_SMMU_V3=y ++ ++# ++# Remoteproc drivers ++# ++# CONFIG_REMOTEPROC is not set ++# end of Remoteproc drivers ++ ++# ++# Rpmsg drivers ++# ++# CONFIG_RPMSG_QCOM_GLINK_RPM is not set ++# CONFIG_RPMSG_VIRTIO is not set ++# end of Rpmsg drivers ++ ++# CONFIG_SOUNDWIRE is not set ++ ++# ++# SOC (System On Chip) specific Drivers ++# ++ ++# ++# Amlogic SoC drivers ++# ++# end of Amlogic SoC drivers ++ ++# ++# Aspeed SoC drivers ++# ++# end of Aspeed SoC drivers ++ ++# ++# Broadcom SoC drivers ++# ++# CONFIG_SOC_BRCMSTB is not set ++# end of Broadcom SoC drivers ++ ++# ++# NXP/Freescale QorIQ SoC drivers ++# ++# CONFIG_QUICC_ENGINE is not set ++# CONFIG_FSL_RCPM is not set ++# end of NXP/Freescale QorIQ SoC drivers ++ ++# ++# i.MX SoC drivers ++# ++# end of i.MX SoC drivers ++ ++# ++# Qualcomm SoC drivers ++# ++# end of Qualcomm SoC drivers ++ ++# CONFIG_SOC_TI is not set ++ ++# ++# Xilinx SoC drivers ++# ++# CONFIG_XILINX_VCU is not set ++# end of Xilinx SoC drivers ++# end of SOC (System On Chip) specific Drivers ++ ++CONFIG_PM_DEVFREQ=y ++ ++# ++# DEVFREQ Governors ++# ++CONFIG_DEVFREQ_GOV_SIMPLE_ONDEMAND=m ++# CONFIG_DEVFREQ_GOV_PERFORMANCE is not set ++# CONFIG_DEVFREQ_GOV_POWERSAVE is not set ++# CONFIG_DEVFREQ_GOV_USERSPACE is not set ++# CONFIG_DEVFREQ_GOV_PASSIVE is not set ++ ++# ++# DEVFREQ Drivers ++# ++# CONFIG_PM_DEVFREQ_EVENT is not set ++# CONFIG_EXTCON is not set ++# CONFIG_MEMORY is not set ++# CONFIG_IIO is not set ++# CONFIG_NTB is not set ++# CONFIG_VME_BUS is not set ++# CONFIG_PWM is not set ++ ++# ++# IRQ chip support ++# ++CONFIG_IRQCHIP=y ++CONFIG_ARM_GIC=y ++CONFIG_ARM_GIC_MAX_NR=1 ++CONFIG_ARM_GIC_V2M=y ++CONFIG_ARM_GIC_V3=y ++CONFIG_ARM_GIC_V3_ITS=y ++CONFIG_ARM_GIC_V3_ITS_PCI=y ++# CONFIG_AL_FIC is not set ++CONFIG_PARTITION_PERCPU=y ++# end of IRQ chip support ++ ++# CONFIG_IPACK_BUS is not set ++CONFIG_RESET_CONTROLLER=y ++# CONFIG_RESET_BRCMSTB_RESCAL is not set ++# CONFIG_RESET_INTEL_GW is not set ++# CONFIG_RESET_TI_SYSCON is not set ++ ++# ++# PHY Subsystem ++# ++# CONFIG_GENERIC_PHY is not set ++# CONFIG_PHY_XGENE is not set ++# CONFIG_BCM_KONA_USB2_PHY is not set ++# CONFIG_PHY_CADENCE_DP is not set ++# CONFIG_PHY_CADENCE_DPHY is not set ++# CONFIG_PHY_CADENCE_SIERRA is not set ++# CONFIG_PHY_FSL_IMX8MQ_USB is not set ++# CONFIG_PHY_MIXEL_MIPI_DPHY is not set ++# CONFIG_PHY_PXA_28NM_HSIC is not set ++# CONFIG_PHY_PXA_28NM_USB2 is not set ++# CONFIG_PHY_MAPPHONE_MDM6600 is not set ++# CONFIG_PHY_OCELOT_SERDES is not set ++# CONFIG_PHY_QCOM_USB_HS is not set ++# CONFIG_PHY_QCOM_USB_HSIC is not set ++# CONFIG_PHY_TUSB1210 is not set ++# CONFIG_PHY_INTEL_EMMC is not set ++# end of PHY Subsystem ++ ++# CONFIG_POWERCAP is not set ++# CONFIG_MCB is not set ++ ++# ++# Performance monitor support ++# ++# CONFIG_ARM_CCI_PMU is not set ++# CONFIG_ARM_CCN is not set ++CONFIG_ARM_PMU=y ++# CONFIG_ARM_DSU_PMU is not set ++# CONFIG_ARM_SPE_PMU is not set ++# end of Performance monitor support ++ ++CONFIG_RAS=y ++ ++# ++# Android ++# ++# CONFIG_ANDROID is not set ++# end of Android ++ ++# CONFIG_LIBNVDIMM is not set ++# CONFIG_DAX is not set ++CONFIG_NVMEM=y ++CONFIG_NVMEM_SYSFS=y ++ ++# ++# HW tracing support ++# ++# CONFIG_STM is not set ++# CONFIG_INTEL_TH is not set ++# end of HW tracing support ++ ++# CONFIG_FPGA is not set ++# CONFIG_FSI is not set ++# CONFIG_TEE is not set ++CONFIG_PM_OPP=y ++# CONFIG_SIOX is not set ++# CONFIG_SLIMBUS is not set ++# CONFIG_INTERCONNECT is not set ++# CONFIG_COUNTER is not set ++# end of Device Drivers ++ ++# ++# File systems ++# ++CONFIG_DCACHE_WORD_ACCESS=y ++# CONFIG_VALIDATE_FS_PARSER is not set ++CONFIG_FS_IOMAP=y ++# CONFIG_EXT2_FS is not set ++CONFIG_EXT3_FS=y ++CONFIG_EXT3_FS_POSIX_ACL=y ++CONFIG_EXT3_FS_SECURITY=y ++CONFIG_EXT4_FS=y ++CONFIG_EXT4_USE_FOR_EXT2=y ++CONFIG_EXT4_FS_POSIX_ACL=y ++CONFIG_EXT4_FS_SECURITY=y ++# CONFIG_EXT4_DEBUG is not set ++CONFIG_JBD2=y ++# CONFIG_JBD2_DEBUG is not set ++CONFIG_FS_MBCACHE=y ++# CONFIG_REISERFS_FS is not set ++# CONFIG_JFS_FS is not set ++# CONFIG_XFS_FS is not set ++# CONFIG_GFS2_FS is not set ++# CONFIG_OCFS2_FS is not set ++# CONFIG_BTRFS_FS is not set ++# CONFIG_NILFS2_FS is not set ++# CONFIG_F2FS_FS is not set ++# CONFIG_FS_DAX is not set ++CONFIG_FS_POSIX_ACL=y ++CONFIG_EXPORTFS=y ++CONFIG_EXPORTFS_BLOCK_OPS=y ++CONFIG_FILE_LOCKING=y ++CONFIG_MANDATORY_FILE_LOCKING=y ++# CONFIG_FS_ENCRYPTION is not set ++# CONFIG_FS_VERITY is not set ++CONFIG_FSNOTIFY=y ++CONFIG_DNOTIFY=y ++CONFIG_INOTIFY_USER=y ++CONFIG_FANOTIFY=y ++CONFIG_QUOTA=y ++CONFIG_QUOTA_NETLINK_INTERFACE=y ++CONFIG_PRINT_QUOTA_WARNING=y ++# CONFIG_QUOTA_DEBUG is not set ++CONFIG_QUOTA_TREE=m ++CONFIG_QFMT_V1=m ++CONFIG_QFMT_V2=m ++CONFIG_QUOTACTL=y ++CONFIG_AUTOFS4_FS=y ++CONFIG_AUTOFS_FS=y ++CONFIG_FUSE_FS=m ++# CONFIG_CUSE is not set ++# CONFIG_VIRTIO_FS is not set ++CONFIG_OVERLAY_FS=y ++# CONFIG_OVERLAY_FS_REDIRECT_DIR is not set ++CONFIG_OVERLAY_FS_REDIRECT_ALWAYS_FOLLOW=y ++# CONFIG_OVERLAY_FS_INDEX is not set ++# CONFIG_OVERLAY_FS_XINO_AUTO is not set ++# CONFIG_OVERLAY_FS_METACOPY is not set ++ ++# ++# Caches ++# ++# CONFIG_FSCACHE is not set ++# end of Caches ++ ++# ++# CD-ROM/DVD Filesystems ++# ++CONFIG_ISO9660_FS=y ++CONFIG_JOLIET=y ++CONFIG_ZISOFS=y ++CONFIG_UDF_FS=y ++# end of CD-ROM/DVD Filesystems ++ ++# ++# DOS/FAT/NT Filesystems ++# ++CONFIG_FAT_FS=y ++CONFIG_MSDOS_FS=y ++CONFIG_VFAT_FS=y ++CONFIG_FAT_DEFAULT_CODEPAGE=866 ++CONFIG_FAT_DEFAULT_IOCHARSET="utf8" ++CONFIG_FAT_DEFAULT_UTF8=y ++# CONFIG_NTFS_FS is not set ++# end of DOS/FAT/NT Filesystems ++ ++# ++# Pseudo filesystems ++# ++CONFIG_PROC_FS=y ++CONFIG_PROC_KCORE=y ++CONFIG_PROC_SYSCTL=y ++CONFIG_PROC_PAGE_MONITOR=y ++# CONFIG_PROC_CHILDREN is not set ++CONFIG_KERNFS=y ++CONFIG_SYSFS=y ++CONFIG_TMPFS=y ++CONFIG_TMPFS_POSIX_ACL=y ++CONFIG_TMPFS_XATTR=y ++CONFIG_HUGETLBFS=y ++CONFIG_HUGETLB_PAGE=y ++CONFIG_MEMFD_CREATE=y ++CONFIG_ARCH_HAS_GIGANTIC_PAGE=y ++CONFIG_CONFIGFS_FS=m ++CONFIG_EFIVAR_FS=m ++# end of Pseudo filesystems ++ ++CONFIG_MISC_FILESYSTEMS=y ++# CONFIG_ORANGEFS_FS is not set ++# CONFIG_ADFS_FS is not set ++# CONFIG_AFFS_FS is not set ++# CONFIG_ECRYPT_FS is not set ++# CONFIG_HFS_FS is not set ++# CONFIG_HFSPLUS_FS is not set ++# CONFIG_BEFS_FS is not set ++# CONFIG_BFS_FS is not set ++# CONFIG_EFS_FS is not set ++# CONFIG_JFFS2_FS is not set ++# CONFIG_CRAMFS is not set ++CONFIG_SQUASHFS=y ++CONFIG_SQUASHFS_FILE_CACHE=y ++# CONFIG_SQUASHFS_FILE_DIRECT is not set ++CONFIG_SQUASHFS_DECOMP_SINGLE=y ++# CONFIG_SQUASHFS_DECOMP_MULTI is not set ++# CONFIG_SQUASHFS_DECOMP_MULTI_PERCPU is not set ++CONFIG_SQUASHFS_XATTR=y ++CONFIG_SQUASHFS_ZLIB=y ++CONFIG_SQUASHFS_LZ4=y ++CONFIG_SQUASHFS_LZO=y ++CONFIG_SQUASHFS_XZ=y ++# CONFIG_SQUASHFS_ZSTD is not set ++# CONFIG_SQUASHFS_4K_DEVBLK_SIZE is not set ++# CONFIG_SQUASHFS_EMBEDDED is not set ++CONFIG_SQUASHFS_FRAGMENT_CACHE_SIZE=3 ++# CONFIG_VXFS_FS is not set ++# CONFIG_MINIX_FS is not set ++# CONFIG_OMFS_FS is not set ++# CONFIG_HPFS_FS is not set ++# CONFIG_QNX4FS_FS is not set ++# CONFIG_QNX6FS_FS is not set ++# CONFIG_ROMFS_FS is not set ++CONFIG_PSTORE=y ++CONFIG_PSTORE_DEFLATE_COMPRESS=y ++# CONFIG_PSTORE_LZO_COMPRESS is not set ++# CONFIG_PSTORE_LZ4_COMPRESS is not set ++# CONFIG_PSTORE_LZ4HC_COMPRESS is not set ++# CONFIG_PSTORE_842_COMPRESS is not set ++# CONFIG_PSTORE_ZSTD_COMPRESS is not set ++CONFIG_PSTORE_COMPRESS=y ++CONFIG_PSTORE_DEFLATE_COMPRESS_DEFAULT=y ++CONFIG_PSTORE_COMPRESS_DEFAULT="deflate" ++# CONFIG_PSTORE_CONSOLE is not set ++# CONFIG_PSTORE_PMSG is not set ++# CONFIG_PSTORE_FTRACE is not set ++# CONFIG_PSTORE_RAM is not set ++# CONFIG_SYSV_FS is not set ++# CONFIG_UFS_FS is not set ++# CONFIG_EROFS_FS is not set ++CONFIG_NETWORK_FILESYSTEMS=y ++CONFIG_NFS_FS=m ++CONFIG_NFS_V3=m ++CONFIG_NFS_V3_ACL=y ++CONFIG_NFS_V4=m ++# CONFIG_NFS_SWAP is not set ++CONFIG_NFS_V4_1=y ++CONFIG_NFS_V4_2=y ++CONFIG_PNFS_FILE_LAYOUT=m ++CONFIG_PNFS_BLOCK=m ++CONFIG_PNFS_FLEXFILE_LAYOUT=m ++CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN="kernel.org" ++CONFIG_NFS_V4_1_MIGRATION=y ++# CONFIG_NFS_USE_LEGACY_DNS is not set ++CONFIG_NFS_USE_KERNEL_DNS=y ++# CONFIG_NFS_DISABLE_UDP_SUPPORT is not set ++# CONFIG_NFS_V4_2_READ_PLUS is not set ++CONFIG_NFSD=m ++CONFIG_NFSD_V2_ACL=y ++CONFIG_NFSD_V3=y ++CONFIG_NFSD_V3_ACL=y ++CONFIG_NFSD_V4=y ++CONFIG_NFSD_PNFS=y ++CONFIG_NFSD_BLOCKLAYOUT=y ++CONFIG_NFSD_SCSILAYOUT=y ++# CONFIG_NFSD_FLEXFILELAYOUT is not set ++CONFIG_NFSD_V4_2_INTER_SSC=y ++CONFIG_GRACE_PERIOD=m ++CONFIG_LOCKD=m ++CONFIG_LOCKD_V4=y ++CONFIG_NFS_ACL_SUPPORT=m ++CONFIG_NFS_COMMON=y ++CONFIG_SUNRPC=m ++CONFIG_SUNRPC_GSS=m ++CONFIG_SUNRPC_BACKCHANNEL=y ++# CONFIG_SUNRPC_DEBUG is not set ++# CONFIG_CEPH_FS is not set ++CONFIG_CIFS=m ++# CONFIG_CIFS_STATS2 is not set ++CONFIG_CIFS_ALLOW_INSECURE_LEGACY=y ++CONFIG_CIFS_WEAK_PW_HASH=y ++CONFIG_CIFS_UPCALL=y ++CONFIG_CIFS_XATTR=y ++CONFIG_CIFS_POSIX=y ++CONFIG_CIFS_DEBUG=y ++# CONFIG_CIFS_DEBUG2 is not set ++# CONFIG_CIFS_DEBUG_DUMP_KEYS is not set ++CONFIG_CIFS_DFS_UPCALL=y ++# CONFIG_CODA_FS is not set ++# CONFIG_AFS_FS is not set ++CONFIG_NLS=y ++CONFIG_NLS_DEFAULT="utf8" ++CONFIG_NLS_CODEPAGE_437=y ++# CONFIG_NLS_CODEPAGE_737 is not set ++# CONFIG_NLS_CODEPAGE_775 is not set ++# CONFIG_NLS_CODEPAGE_850 is not set ++# CONFIG_NLS_CODEPAGE_852 is not set ++# CONFIG_NLS_CODEPAGE_855 is not set ++# CONFIG_NLS_CODEPAGE_857 is not set ++# CONFIG_NLS_CODEPAGE_860 is not set ++# CONFIG_NLS_CODEPAGE_861 is not set ++# CONFIG_NLS_CODEPAGE_862 is not set ++# CONFIG_NLS_CODEPAGE_863 is not set ++# CONFIG_NLS_CODEPAGE_864 is not set ++# CONFIG_NLS_CODEPAGE_865 is not set ++CONFIG_NLS_CODEPAGE_866=y ++# CONFIG_NLS_CODEPAGE_869 is not set ++# CONFIG_NLS_CODEPAGE_936 is not set ++# CONFIG_NLS_CODEPAGE_950 is not set ++# CONFIG_NLS_CODEPAGE_932 is not set ++# CONFIG_NLS_CODEPAGE_949 is not set ++# CONFIG_NLS_CODEPAGE_874 is not set ++# CONFIG_NLS_ISO8859_8 is not set ++# CONFIG_NLS_CODEPAGE_1250 is not set ++# CONFIG_NLS_CODEPAGE_1251 is not set ++# CONFIG_NLS_ASCII is not set ++CONFIG_NLS_ISO8859_1=y ++# CONFIG_NLS_ISO8859_2 is not set ++# CONFIG_NLS_ISO8859_3 is not set ++# CONFIG_NLS_ISO8859_4 is not set ++# CONFIG_NLS_ISO8859_5 is not set ++# CONFIG_NLS_ISO8859_6 is not set ++# CONFIG_NLS_ISO8859_7 is not set ++# CONFIG_NLS_ISO8859_9 is not set ++# CONFIG_NLS_ISO8859_13 is not set ++# CONFIG_NLS_ISO8859_14 is not set ++# CONFIG_NLS_ISO8859_15 is not set ++# CONFIG_NLS_KOI8_R is not set ++# CONFIG_NLS_KOI8_U is not set ++# CONFIG_NLS_MAC_ROMAN is not set ++# CONFIG_NLS_MAC_CELTIC is not set ++# CONFIG_NLS_MAC_CENTEURO is not set ++# CONFIG_NLS_MAC_CROATIAN is not set ++# CONFIG_NLS_MAC_CYRILLIC is not set ++# CONFIG_NLS_MAC_GAELIC is not set ++# CONFIG_NLS_MAC_GREEK is not set ++# CONFIG_NLS_MAC_ICELAND is not set ++# CONFIG_NLS_MAC_INUIT is not set ++# CONFIG_NLS_MAC_ROMANIAN is not set ++# CONFIG_NLS_MAC_TURKISH is not set ++CONFIG_NLS_UTF8=y ++# CONFIG_DLM is not set ++# CONFIG_UNICODE is not set ++CONFIG_IO_WQ=y ++# end of File systems ++ ++# ++# Security options ++# ++CONFIG_KEYS=y ++# CONFIG_KEYS_REQUEST_CACHE is not set ++CONFIG_PERSISTENT_KEYRINGS=y ++CONFIG_BIG_KEYS=y ++# CONFIG_ENCRYPTED_KEYS is not set ++# CONFIG_KEY_DH_OPERATIONS is not set ++# CONFIG_SECURITY_DMESG_RESTRICT is not set ++# CONFIG_SECURITY is not set ++# CONFIG_SECURITYFS is not set ++CONFIG_HAVE_HARDENED_USERCOPY_ALLOCATOR=y ++# CONFIG_HARDENED_USERCOPY is not set ++# CONFIG_FORTIFY_SOURCE is not set ++# CONFIG_STATIC_USERMODEHELPER is not set ++CONFIG_DEFAULT_SECURITY_DAC=y ++CONFIG_LSM="lockdown,yama,loadpin,safesetid,integrity" ++ ++# ++# Kernel hardening options ++# ++ ++# ++# Memory initialization ++# ++CONFIG_INIT_STACK_NONE=y ++# CONFIG_INIT_ON_ALLOC_DEFAULT_ON is not set ++# CONFIG_INIT_ON_FREE_DEFAULT_ON is not set ++# end of Memory initialization ++# end of Kernel hardening options ++# end of Security options ++ ++CONFIG_XOR_BLOCKS=m ++CONFIG_ASYNC_CORE=m ++CONFIG_ASYNC_MEMCPY=m ++CONFIG_ASYNC_XOR=m ++CONFIG_ASYNC_PQ=m ++CONFIG_ASYNC_RAID6_RECOV=m ++CONFIG_CRYPTO=y ++ ++# ++# Crypto core or helper ++# ++CONFIG_CRYPTO_ALGAPI=y ++CONFIG_CRYPTO_ALGAPI2=y ++CONFIG_CRYPTO_AEAD=y ++CONFIG_CRYPTO_AEAD2=y ++CONFIG_CRYPTO_SKCIPHER=y ++CONFIG_CRYPTO_SKCIPHER2=y ++CONFIG_CRYPTO_HASH=y ++CONFIG_CRYPTO_HASH2=y ++CONFIG_CRYPTO_RNG=y ++CONFIG_CRYPTO_RNG2=y ++CONFIG_CRYPTO_RNG_DEFAULT=y ++CONFIG_CRYPTO_AKCIPHER2=y ++CONFIG_CRYPTO_KPP2=y ++CONFIG_CRYPTO_ACOMP2=y ++CONFIG_CRYPTO_MANAGER=y ++CONFIG_CRYPTO_MANAGER2=y ++# CONFIG_CRYPTO_USER is not set ++CONFIG_CRYPTO_MANAGER_DISABLE_TESTS=y ++CONFIG_CRYPTO_GF128MUL=y ++CONFIG_CRYPTO_NULL=y ++CONFIG_CRYPTO_NULL2=y ++# CONFIG_CRYPTO_PCRYPT is not set ++# CONFIG_CRYPTO_CRYPTD is not set ++CONFIG_CRYPTO_AUTHENC=m ++# CONFIG_CRYPTO_TEST is not set ++ ++# ++# Public-key cryptography ++# ++# CONFIG_CRYPTO_RSA is not set ++# CONFIG_CRYPTO_DH is not set ++# CONFIG_CRYPTO_ECDH is not set ++# CONFIG_CRYPTO_ECRDSA is not set ++# CONFIG_CRYPTO_CURVE25519 is not set ++ ++# ++# Authenticated Encryption with Associated Data ++# ++CONFIG_CRYPTO_GCM=y ++# CONFIG_CRYPTO_CHACHA20POLY1305 is not set ++# CONFIG_CRYPTO_AEGIS128 is not set ++CONFIG_CRYPTO_SEQIV=y ++# CONFIG_CRYPTO_ECHAINIV is not set ++ ++# ++# Block modes ++# ++CONFIG_CRYPTO_CBC=y ++# CONFIG_CRYPTO_CFB is not set ++CONFIG_CRYPTO_CTR=y ++# CONFIG_CRYPTO_CTS is not set ++# CONFIG_CRYPTO_LRW is not set ++# CONFIG_CRYPTO_OFB is not set ++# CONFIG_CRYPTO_PCBC is not set ++# CONFIG_CRYPTO_XTS is not set ++# CONFIG_CRYPTO_KEYWRAP is not set ++# CONFIG_CRYPTO_ADIANTUM is not set ++CONFIG_CRYPTO_ESSIV=m ++ ++# ++# Hash modes ++# ++CONFIG_CRYPTO_HMAC=y ++# CONFIG_CRYPTO_XCBC is not set ++# CONFIG_CRYPTO_VMAC is not set ++ ++# ++# Digest ++# ++CONFIG_CRYPTO_CRC32C=y ++CONFIG_CRYPTO_CRC32=m ++# CONFIG_CRYPTO_XXHASH is not set ++# CONFIG_CRYPTO_BLAKE2B is not set ++# CONFIG_CRYPTO_BLAKE2S is not set ++CONFIG_CRYPTO_CRCT10DIF=y ++CONFIG_CRYPTO_GHASH=y ++# CONFIG_CRYPTO_POLY1305 is not set ++# CONFIG_CRYPTO_MICHAEL_MIC is not set ++# CONFIG_CRYPTO_RMD128 is not set ++# CONFIG_CRYPTO_RMD160 is not set ++# CONFIG_CRYPTO_RMD256 is not set ++# CONFIG_CRYPTO_RMD320 is not set ++CONFIG_CRYPTO_SHA1=m ++CONFIG_CRYPTO_SHA256=y ++# CONFIG_CRYPTO_SHA3 is not set ++# CONFIG_CRYPTO_SM3 is not set ++# CONFIG_CRYPTO_STREEBOG is not set ++# CONFIG_CRYPTO_TGR192 is not set ++# CONFIG_CRYPTO_WP512 is not set ++ ++# ++# Ciphers ++# ++CONFIG_CRYPTO_AES=y ++# CONFIG_CRYPTO_AES_TI is not set ++# CONFIG_CRYPTO_ANUBIS is not set ++# CONFIG_CRYPTO_ARC4 is not set ++# CONFIG_CRYPTO_BLOWFISH is not set ++# CONFIG_CRYPTO_CAMELLIA is not set ++# CONFIG_CRYPTO_CAST5 is not set ++# CONFIG_CRYPTO_CAST6 is not set ++# CONFIG_CRYPTO_DES is not set ++# CONFIG_CRYPTO_FCRYPT is not set ++# CONFIG_CRYPTO_KHAZAD is not set ++# CONFIG_CRYPTO_SALSA20 is not set ++# CONFIG_CRYPTO_CHACHA20 is not set ++# CONFIG_CRYPTO_SEED is not set ++# CONFIG_CRYPTO_SERPENT is not set ++# CONFIG_CRYPTO_SM4 is not set ++# CONFIG_CRYPTO_TEA is not set ++# CONFIG_CRYPTO_TWOFISH is not set ++ ++# ++# Compression ++# ++CONFIG_CRYPTO_DEFLATE=y ++CONFIG_CRYPTO_LZO=y ++# CONFIG_CRYPTO_842 is not set ++# CONFIG_CRYPTO_LZ4 is not set ++# CONFIG_CRYPTO_LZ4HC is not set ++# CONFIG_CRYPTO_ZSTD is not set ++ ++# ++# Random Number Generation ++# ++# CONFIG_CRYPTO_ANSI_CPRNG is not set ++CONFIG_CRYPTO_DRBG_MENU=y ++CONFIG_CRYPTO_DRBG_HMAC=y ++# CONFIG_CRYPTO_DRBG_HASH is not set ++# CONFIG_CRYPTO_DRBG_CTR is not set ++CONFIG_CRYPTO_DRBG=y ++CONFIG_CRYPTO_JITTERENTROPY=y ++# CONFIG_CRYPTO_USER_API_HASH is not set ++# CONFIG_CRYPTO_USER_API_SKCIPHER is not set ++# CONFIG_CRYPTO_USER_API_RNG is not set ++# CONFIG_CRYPTO_USER_API_AEAD is not set ++ ++# ++# Crypto library routines ++# ++CONFIG_CRYPTO_LIB_AES=y ++CONFIG_CRYPTO_LIB_ARC4=m ++# CONFIG_CRYPTO_LIB_BLAKE2S is not set ++# CONFIG_CRYPTO_LIB_CHACHA is not set ++# CONFIG_CRYPTO_LIB_CURVE25519 is not set ++CONFIG_CRYPTO_LIB_POLY1305_RSIZE=9 ++# CONFIG_CRYPTO_LIB_POLY1305 is not set ++# CONFIG_CRYPTO_LIB_CHACHA20POLY1305 is not set ++CONFIG_CRYPTO_LIB_SHA256=y ++# CONFIG_CRYPTO_HW is not set ++# CONFIG_ASYMMETRIC_KEY_TYPE is not set ++ ++# ++# Certificates for signature checking ++# ++# CONFIG_SYSTEM_BLACKLIST_KEYRING is not set ++# end of Certificates for signature checking ++ ++CONFIG_BINARY_PRINTF=y ++ ++# ++# Library routines ++# ++CONFIG_RAID6_PQ=m ++CONFIG_RAID6_PQ_BENCHMARK=y ++# CONFIG_PACKING is not set ++CONFIG_BITREVERSE=y ++CONFIG_HAVE_ARCH_BITREVERSE=y ++CONFIG_GENERIC_STRNCPY_FROM_USER=y ++CONFIG_GENERIC_STRNLEN_USER=y ++CONFIG_GENERIC_NET_UTILS=y ++# CONFIG_CORDIC is not set ++CONFIG_RATIONAL=y ++CONFIG_GENERIC_PCI_IOMAP=y ++CONFIG_ARCH_USE_CMPXCHG_LOCKREF=y ++CONFIG_ARCH_HAS_FAST_MULTIPLIER=y ++# CONFIG_INDIRECT_PIO is not set ++CONFIG_CRC_CCITT=m ++CONFIG_CRC16=y ++# CONFIG_CRC_T10DIF is not set ++CONFIG_CRC_ITU_T=y ++CONFIG_CRC32=y ++# CONFIG_CRC32_SELFTEST is not set ++CONFIG_CRC32_SLICEBY8=y ++# CONFIG_CRC32_SLICEBY4 is not set ++# CONFIG_CRC32_SARWATE is not set ++# CONFIG_CRC32_BIT is not set ++# CONFIG_CRC64 is not set ++# CONFIG_CRC4 is not set ++# CONFIG_CRC7 is not set ++CONFIG_LIBCRC32C=m ++# CONFIG_CRC8 is not set ++CONFIG_XXHASH=y ++CONFIG_AUDIT_GENERIC=y ++CONFIG_AUDIT_ARCH_COMPAT_GENERIC=y ++CONFIG_AUDIT_COMPAT_GENERIC=y ++# CONFIG_RANDOM32_SELFTEST is not set ++CONFIG_ZLIB_INFLATE=y ++CONFIG_ZLIB_DEFLATE=y ++CONFIG_LZO_COMPRESS=y ++CONFIG_LZO_DECOMPRESS=y ++CONFIG_LZ4_DECOMPRESS=y ++CONFIG_XZ_DEC=y ++CONFIG_XZ_DEC_X86=y ++CONFIG_XZ_DEC_POWERPC=y ++CONFIG_XZ_DEC_IA64=y ++CONFIG_XZ_DEC_ARM=y ++CONFIG_XZ_DEC_ARMTHUMB=y ++CONFIG_XZ_DEC_SPARC=y ++CONFIG_XZ_DEC_BCJ=y ++# CONFIG_XZ_DEC_TEST is not set ++CONFIG_DECOMPRESS_GZIP=y ++CONFIG_DECOMPRESS_LZMA=y ++CONFIG_DECOMPRESS_XZ=y ++CONFIG_DECOMPRESS_LZO=y ++CONFIG_DECOMPRESS_LZ4=y ++CONFIG_GENERIC_ALLOCATOR=y ++CONFIG_XARRAY_MULTI=y ++CONFIG_ASSOCIATIVE_ARRAY=y ++CONFIG_HAS_IOMEM=y ++CONFIG_HAS_IOPORT_MAP=y ++CONFIG_HAS_DMA=y ++CONFIG_NEED_SG_DMA_LENGTH=y ++CONFIG_NEED_DMA_MAP_STATE=y ++CONFIG_ARCH_DMA_ADDR_T_64BIT=y ++CONFIG_DMA_DECLARE_COHERENT=y ++CONFIG_ARCH_HAS_SETUP_DMA_OPS=y ++CONFIG_ARCH_HAS_TEARDOWN_DMA_OPS=y ++CONFIG_ARCH_HAS_SYNC_DMA_FOR_DEVICE=y ++CONFIG_ARCH_HAS_SYNC_DMA_FOR_CPU=y ++CONFIG_ARCH_HAS_DMA_PREP_COHERENT=y ++CONFIG_SWIOTLB=y ++CONFIG_DMA_NONCOHERENT_MMAP=y ++CONFIG_DMA_REMAP=y ++CONFIG_DMA_DIRECT_REMAP=y ++CONFIG_DMA_CMA=y ++ ++# ++# Default contiguous memory area size: ++# ++CONFIG_CMA_SIZE_MBYTES=256 ++CONFIG_CMA_SIZE_SEL_MBYTES=y ++# CONFIG_CMA_SIZE_SEL_PERCENTAGE is not set ++# CONFIG_CMA_SIZE_SEL_MIN is not set ++# CONFIG_CMA_SIZE_SEL_MAX is not set ++CONFIG_CMA_ALIGNMENT=8 ++# CONFIG_DMA_API_DEBUG is not set ++CONFIG_SGL_ALLOC=y ++CONFIG_CPU_RMAP=y ++CONFIG_DQL=y ++CONFIG_GLOB=y ++# CONFIG_GLOB_SELFTEST is not set ++CONFIG_NLATTR=y ++CONFIG_IRQ_POLL=y ++CONFIG_LIBFDT=y ++CONFIG_UCS2_STRING=y ++CONFIG_HAVE_GENERIC_VDSO=y ++CONFIG_GENERIC_GETTIMEOFDAY=y ++CONFIG_FONT_SUPPORT=y ++# CONFIG_FONTS is not set ++CONFIG_FONT_8x8=y ++CONFIG_FONT_8x16=y ++CONFIG_SG_POOL=y ++CONFIG_SBITMAP=y ++# CONFIG_STRING_SELFTEST is not set ++# end of Library routines ++ ++# ++# Kernel hacking ++# ++ ++# ++# printk and dmesg options ++# ++CONFIG_PRINTK_TIME=y ++# CONFIG_PRINTK_CALLER is not set ++CONFIG_CONSOLE_LOGLEVEL_DEFAULT=7 ++CONFIG_CONSOLE_LOGLEVEL_QUIET=4 ++CONFIG_MESSAGE_LOGLEVEL_DEFAULT=4 ++CONFIG_BOOT_PRINTK_DELAY=y ++CONFIG_DYNAMIC_DEBUG=y ++CONFIG_SYMBOLIC_ERRNAME=y ++CONFIG_DEBUG_BUGVERBOSE=y ++# end of printk and dmesg options ++ ++# ++# Compile-time checks and compiler options ++# ++# CONFIG_DEBUG_INFO is not set ++CONFIG_ENABLE_MUST_CHECK=y ++CONFIG_FRAME_WARN=2048 ++CONFIG_STRIP_ASM_SYMS=y ++# CONFIG_READABLE_ASM is not set ++# CONFIG_HEADERS_INSTALL is not set ++CONFIG_OPTIMIZE_INLINING=y ++# CONFIG_DEBUG_SECTION_MISMATCH is not set ++CONFIG_SECTION_MISMATCH_WARN_ONLY=y ++CONFIG_ARCH_WANT_FRAME_POINTERS=y ++CONFIG_FRAME_POINTER=y ++# CONFIG_DEBUG_FORCE_WEAK_PER_CPU is not set ++# end of Compile-time checks and compiler options ++ ++# ++# Generic Kernel Debugging Instruments ++# ++CONFIG_MAGIC_SYSRQ=y ++CONFIG_MAGIC_SYSRQ_DEFAULT_ENABLE=0x01b6 ++CONFIG_MAGIC_SYSRQ_SERIAL=y ++CONFIG_DEBUG_FS=y ++CONFIG_HAVE_ARCH_KGDB=y ++CONFIG_KGDB=y ++CONFIG_KGDB_SERIAL_CONSOLE=y ++# CONFIG_KGDB_TESTS is not set ++CONFIG_KGDB_KDB=y ++CONFIG_KDB_DEFAULT_ENABLE=0x1 ++# CONFIG_KDB_KEYBOARD is not set ++CONFIG_KDB_CONTINUE_CATASTROPHIC=0 ++CONFIG_ARCH_HAS_UBSAN_SANITIZE_ALL=y ++# CONFIG_UBSAN is not set ++CONFIG_UBSAN_ALIGNMENT=y ++# end of Generic Kernel Debugging Instruments ++ ++CONFIG_DEBUG_KERNEL=y ++CONFIG_DEBUG_MISC=y ++ ++# ++# Memory Debugging ++# ++CONFIG_PAGE_EXTENSION=y ++# CONFIG_DEBUG_PAGEALLOC is not set ++# CONFIG_PAGE_OWNER is not set ++CONFIG_PAGE_POISONING=y ++CONFIG_PAGE_POISONING_NO_SANITY=y ++# CONFIG_PAGE_POISONING_ZERO is not set ++# CONFIG_DEBUG_PAGE_REF is not set ++# CONFIG_DEBUG_RODATA_TEST is not set ++CONFIG_GENERIC_PTDUMP=y ++# CONFIG_PTDUMP_DEBUGFS is not set ++# CONFIG_DEBUG_OBJECTS is not set ++# CONFIG_DEBUG_SLAB is not set ++CONFIG_HAVE_DEBUG_KMEMLEAK=y ++# CONFIG_DEBUG_KMEMLEAK is not set ++# CONFIG_DEBUG_STACK_USAGE is not set ++CONFIG_SCHED_STACK_END_CHECK=y ++# CONFIG_DEBUG_VM is not set ++CONFIG_ARCH_HAS_DEBUG_VIRTUAL=y ++# CONFIG_DEBUG_VIRTUAL is not set ++CONFIG_DEBUG_MEMORY_INIT=y ++# CONFIG_DEBUG_PER_CPU_MAPS is not set ++CONFIG_HAVE_ARCH_KASAN=y ++CONFIG_HAVE_ARCH_KASAN_SW_TAGS=y ++CONFIG_CC_HAS_KASAN_GENERIC=y ++# CONFIG_KASAN is not set ++CONFIG_KASAN_STACK=1 ++# end of Memory Debugging ++ ++# CONFIG_DEBUG_SHIRQ is not set ++ ++# ++# Debug Oops, Lockups and Hangs ++# ++# CONFIG_PANIC_ON_OOPS is not set ++CONFIG_PANIC_ON_OOPS_VALUE=0 ++CONFIG_PANIC_TIMEOUT=0 ++CONFIG_LOCKUP_DETECTOR=y ++CONFIG_SOFTLOCKUP_DETECTOR=y ++# CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC is not set ++CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC_VALUE=0 ++CONFIG_DETECT_HUNG_TASK=y ++CONFIG_DEFAULT_HUNG_TASK_TIMEOUT=120 ++# CONFIG_BOOTPARAM_HUNG_TASK_PANIC is not set ++CONFIG_BOOTPARAM_HUNG_TASK_PANIC_VALUE=0 ++CONFIG_WQ_WATCHDOG=y ++# end of Debug Oops, Lockups and Hangs ++ ++# ++# Scheduler Debugging ++# ++CONFIG_SCHED_DEBUG=y ++CONFIG_SCHED_INFO=y ++CONFIG_SCHEDSTATS=y ++# end of Scheduler Debugging ++ ++# CONFIG_DEBUG_TIMEKEEPING is not set ++CONFIG_DEBUG_PREEMPT=y ++ ++# ++# Lock Debugging (spinlocks, mutexes, etc...) ++# ++CONFIG_LOCK_DEBUGGING_SUPPORT=y ++CONFIG_PROVE_LOCKING=y ++# CONFIG_LOCK_STAT is not set ++CONFIG_DEBUG_RT_MUTEXES=y ++CONFIG_DEBUG_SPINLOCK=y ++CONFIG_DEBUG_MUTEXES=y ++CONFIG_DEBUG_WW_MUTEX_SLOWPATH=y ++CONFIG_DEBUG_RWSEMS=y ++CONFIG_DEBUG_LOCK_ALLOC=y ++CONFIG_LOCKDEP=y ++# CONFIG_DEBUG_LOCKDEP is not set ++# CONFIG_DEBUG_ATOMIC_SLEEP is not set ++# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set ++# CONFIG_LOCK_TORTURE_TEST is not set ++# CONFIG_WW_MUTEX_SELFTEST is not set ++# end of Lock Debugging (spinlocks, mutexes, etc...) ++ ++CONFIG_TRACE_IRQFLAGS=y ++CONFIG_STACKTRACE=y ++# CONFIG_WARN_ALL_UNSEEDED_RANDOM is not set ++# CONFIG_DEBUG_KOBJECT is not set ++CONFIG_HAVE_DEBUG_BUGVERBOSE=y ++ ++# ++# Debug kernel data structures ++# ++CONFIG_DEBUG_LIST=y ++# CONFIG_DEBUG_PLIST is not set ++# CONFIG_DEBUG_SG is not set ++# CONFIG_DEBUG_NOTIFIERS is not set ++# CONFIG_BUG_ON_DATA_CORRUPTION is not set ++# end of Debug kernel data structures ++ ++# CONFIG_DEBUG_CREDENTIALS is not set ++ ++# ++# RCU Debugging ++# ++CONFIG_PROVE_RCU=y ++# CONFIG_RCU_PERF_TEST is not set ++# CONFIG_RCU_TORTURE_TEST is not set ++CONFIG_RCU_CPU_STALL_TIMEOUT=21 ++# CONFIG_RCU_TRACE is not set ++# CONFIG_RCU_EQS_DEBUG is not set ++# end of RCU Debugging ++ ++# CONFIG_DEBUG_WQ_FORCE_RR_CPU is not set ++# CONFIG_DEBUG_BLOCK_EXT_DEVT is not set ++# CONFIG_CPU_HOTPLUG_STATE_CONTROL is not set ++CONFIG_LATENCYTOP=y ++CONFIG_NOP_TRACER=y ++CONFIG_HAVE_FUNCTION_TRACER=y ++CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y ++CONFIG_HAVE_DYNAMIC_FTRACE=y ++CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y ++CONFIG_HAVE_SYSCALL_TRACEPOINTS=y ++CONFIG_HAVE_C_RECORDMCOUNT=y ++CONFIG_TRACER_MAX_TRACE=y ++CONFIG_TRACE_CLOCK=y ++CONFIG_RING_BUFFER=y ++CONFIG_EVENT_TRACING=y ++CONFIG_CONTEXT_SWITCH_TRACER=y ++CONFIG_RING_BUFFER_ALLOW_SWAP=y ++CONFIG_PREEMPTIRQ_TRACEPOINTS=y ++CONFIG_TRACING=y ++CONFIG_GENERIC_TRACER=y ++CONFIG_TRACING_SUPPORT=y ++CONFIG_FTRACE=y ++# CONFIG_BOOTTIME_TRACING is not set ++CONFIG_FUNCTION_TRACER=y ++CONFIG_FUNCTION_GRAPH_TRACER=y ++CONFIG_DYNAMIC_FTRACE=y ++# CONFIG_FUNCTION_PROFILER is not set ++CONFIG_STACK_TRACER=y ++# CONFIG_PREEMPTIRQ_EVENTS is not set ++CONFIG_IRQSOFF_TRACER=y ++# CONFIG_PREEMPT_TRACER is not set ++CONFIG_SCHED_TRACER=y ++CONFIG_HWLAT_TRACER=y ++CONFIG_FTRACE_SYSCALLS=y ++CONFIG_TRACER_SNAPSHOT=y ++CONFIG_TRACER_SNAPSHOT_PER_CPU_SWAP=y ++CONFIG_BRANCH_PROFILE_NONE=y ++# CONFIG_PROFILE_ANNOTATED_BRANCHES is not set ++# CONFIG_PROFILE_ALL_BRANCHES is not set ++CONFIG_BLK_DEV_IO_TRACE=y ++CONFIG_KPROBE_EVENTS=y ++CONFIG_UPROBE_EVENTS=y ++CONFIG_BPF_EVENTS=y ++CONFIG_DYNAMIC_EVENTS=y ++CONFIG_PROBE_EVENTS=y ++# CONFIG_BPF_KPROBE_OVERRIDE is not set ++CONFIG_FTRACE_MCOUNT_RECORD=y ++# CONFIG_HIST_TRIGGERS is not set ++# CONFIG_TRACE_EVENT_INJECT is not set ++# CONFIG_TRACEPOINT_BENCHMARK is not set ++# CONFIG_RING_BUFFER_BENCHMARK is not set ++# CONFIG_TRACE_EVAL_MAP_FILE is not set ++# CONFIG_FTRACE_STARTUP_TEST is not set ++# CONFIG_RING_BUFFER_STARTUP_TEST is not set ++# CONFIG_PREEMPTIRQ_DELAY_TEST is not set ++# CONFIG_KPROBE_EVENT_GEN_TEST is not set ++# CONFIG_SAMPLES is not set ++CONFIG_ARCH_HAS_DEVMEM_IS_ALLOWED=y ++CONFIG_STRICT_DEVMEM=y ++CONFIG_IO_STRICT_DEVMEM=y ++ ++# ++# arm64 Debugging ++# ++# CONFIG_PID_IN_CONTEXTIDR is not set ++# CONFIG_ARM64_RANDOMIZE_TEXT_OFFSET is not set ++# CONFIG_DEBUG_WX is not set ++# CONFIG_DEBUG_ALIGN_RODATA is not set ++# CONFIG_ARM64_RELOC_TEST is not set ++# CONFIG_CORESIGHT is not set ++# end of arm64 Debugging ++ ++# ++# Kernel Testing and Coverage ++# ++# CONFIG_KUNIT is not set ++# CONFIG_NOTIFIER_ERROR_INJECTION is not set ++CONFIG_FUNCTION_ERROR_INJECTION=y ++# CONFIG_FAULT_INJECTION is not set ++CONFIG_ARCH_HAS_KCOV=y ++CONFIG_CC_HAS_SANCOV_TRACE_PC=y ++# CONFIG_KCOV is not set ++# CONFIG_RUNTIME_TESTING_MENU is not set ++# CONFIG_MEMTEST is not set ++# end of Kernel Testing and Coverage ++# end of Kernel hacking +diff --git a/baikal_rk3399_defconfig b/baikal_rk3399_defconfig +new file mode 100644 +index 000000000000..95127478cf40 +--- /dev/null ++++ b/baikal_rk3399_defconfig +@@ -0,0 +1,8627 @@ ++# ++# Automatically generated file; DO NOT EDIT. ++# Linux/arm64 5.15.4 Kernel Configuration ++# ++CONFIG_CC_VERSION_TEXT="aarch64-linux-gnu-gcc (Ubuntu 10.3.0-1ubuntu1) 10.3.0" ++CONFIG_CC_IS_GCC=y ++CONFIG_GCC_VERSION=100300 ++CONFIG_CLANG_VERSION=0 ++CONFIG_AS_IS_GNU=y ++CONFIG_AS_VERSION=23601 ++CONFIG_LD_IS_BFD=y ++CONFIG_LD_VERSION=23601 ++CONFIG_LLD_VERSION=0 ++CONFIG_CC_CAN_LINK=y ++CONFIG_CC_CAN_LINK_STATIC=y ++CONFIG_CC_HAS_ASM_GOTO=y ++CONFIG_CC_HAS_ASM_INLINE=y ++CONFIG_CC_HAS_NO_PROFILE_FN_ATTR=y ++CONFIG_IRQ_WORK=y ++CONFIG_BUILDTIME_TABLE_SORT=y ++CONFIG_THREAD_INFO_IN_TASK=y ++ ++# ++# General setup ++# ++CONFIG_INIT_ENV_ARG_LIMIT=32 ++# CONFIG_COMPILE_TEST is not set ++# CONFIG_WERROR is not set ++CONFIG_LOCALVERSION="" ++CONFIG_LOCALVERSION_AUTO=y ++CONFIG_BUILD_SALT="" ++CONFIG_DEFAULT_INIT="" ++CONFIG_DEFAULT_HOSTNAME="(none)" ++CONFIG_SWAP=y ++CONFIG_SYSVIPC=y ++CONFIG_SYSVIPC_SYSCTL=y ++CONFIG_POSIX_MQUEUE=y ++CONFIG_POSIX_MQUEUE_SYSCTL=y ++# CONFIG_WATCH_QUEUE is not set ++CONFIG_CROSS_MEMORY_ATTACH=y ++CONFIG_USELIB=y ++CONFIG_AUDIT=y ++CONFIG_HAVE_ARCH_AUDITSYSCALL=y ++CONFIG_AUDITSYSCALL=y ++ ++# ++# IRQ subsystem ++# ++CONFIG_GENERIC_IRQ_PROBE=y ++CONFIG_GENERIC_IRQ_SHOW=y ++CONFIG_GENERIC_IRQ_SHOW_LEVEL=y ++CONFIG_GENERIC_IRQ_EFFECTIVE_AFF_MASK=y ++CONFIG_GENERIC_IRQ_MIGRATION=y ++CONFIG_HARDIRQS_SW_RESEND=y ++CONFIG_GENERIC_IRQ_CHIP=y ++CONFIG_IRQ_DOMAIN=y ++CONFIG_IRQ_DOMAIN_HIERARCHY=y ++CONFIG_GENERIC_IRQ_IPI=y ++CONFIG_GENERIC_MSI_IRQ=y ++CONFIG_GENERIC_MSI_IRQ_DOMAIN=y ++CONFIG_IRQ_MSI_IOMMU=y ++CONFIG_HANDLE_DOMAIN_IRQ=y ++CONFIG_IRQ_FORCED_THREADING=y ++CONFIG_SPARSE_IRQ=y ++# CONFIG_GENERIC_IRQ_DEBUGFS is not set ++# end of IRQ subsystem ++ ++CONFIG_GENERIC_TIME_VSYSCALL=y ++CONFIG_GENERIC_CLOCKEVENTS=y ++CONFIG_ARCH_HAS_TICK_BROADCAST=y ++CONFIG_GENERIC_CLOCKEVENTS_BROADCAST=y ++# CONFIG_TIME_KUNIT_TEST is not set ++ ++# ++# Timers subsystem ++# ++CONFIG_TICK_ONESHOT=y ++CONFIG_NO_HZ_COMMON=y ++# CONFIG_HZ_PERIODIC is not set ++CONFIG_NO_HZ_IDLE=y ++# CONFIG_NO_HZ_FULL is not set ++CONFIG_NO_HZ=y ++CONFIG_HIGH_RES_TIMERS=y ++# end of Timers subsystem ++ ++CONFIG_BPF=y ++CONFIG_HAVE_EBPF_JIT=y ++CONFIG_ARCH_WANT_DEFAULT_BPF_JIT=y ++ ++# ++# BPF subsystem ++# ++CONFIG_BPF_SYSCALL=y ++CONFIG_BPF_JIT=y ++# CONFIG_BPF_JIT_ALWAYS_ON is not set ++CONFIG_BPF_JIT_DEFAULT_ON=y ++# CONFIG_BPF_UNPRIV_DEFAULT_OFF is not set ++CONFIG_USERMODE_DRIVER=y ++# CONFIG_BPF_PRELOAD is not set ++# end of BPF subsystem ++ ++# CONFIG_PREEMPT_NONE is not set ++# CONFIG_PREEMPT_VOLUNTARY is not set ++CONFIG_PREEMPT=y ++CONFIG_PREEMPT_COUNT=y ++CONFIG_PREEMPTION=y ++ ++# ++# CPU/Task time and stats accounting ++# ++CONFIG_TICK_CPU_ACCOUNTING=y ++# CONFIG_VIRT_CPU_ACCOUNTING_GEN is not set ++# CONFIG_IRQ_TIME_ACCOUNTING is not set ++CONFIG_SCHED_THERMAL_PRESSURE=y ++CONFIG_BSD_PROCESS_ACCT=y ++CONFIG_BSD_PROCESS_ACCT_V3=y ++CONFIG_TASKSTATS=y ++CONFIG_TASK_DELAY_ACCT=y ++CONFIG_TASK_XACCT=y ++CONFIG_TASK_IO_ACCOUNTING=y ++# CONFIG_PSI is not set ++# end of CPU/Task time and stats accounting ++ ++CONFIG_CPU_ISOLATION=y ++ ++# ++# RCU Subsystem ++# ++CONFIG_TREE_RCU=y ++CONFIG_PREEMPT_RCU=y ++# CONFIG_RCU_EXPERT is not set ++CONFIG_SRCU=y ++CONFIG_TREE_SRCU=y ++CONFIG_TASKS_RCU_GENERIC=y ++CONFIG_TASKS_RCU=y ++CONFIG_TASKS_RUDE_RCU=y ++CONFIG_TASKS_TRACE_RCU=y ++CONFIG_RCU_STALL_COMMON=y ++CONFIG_RCU_NEED_SEGCBLIST=y ++# end of RCU Subsystem ++ ++CONFIG_IKCONFIG=y ++CONFIG_IKCONFIG_PROC=y ++# CONFIG_IKHEADERS is not set ++CONFIG_LOG_BUF_SHIFT=17 ++CONFIG_LOG_CPU_MAX_BUF_SHIFT=14 ++CONFIG_PRINTK_SAFE_LOG_BUF_SHIFT=13 ++# CONFIG_PRINTK_INDEX is not set ++CONFIG_GENERIC_SCHED_CLOCK=y ++ ++# ++# Scheduler features ++# ++# CONFIG_UCLAMP_TASK is not set ++# end of Scheduler features ++ ++CONFIG_ARCH_SUPPORTS_NUMA_BALANCING=y ++CONFIG_CC_HAS_INT128=y ++CONFIG_ARCH_SUPPORTS_INT128=y ++CONFIG_NUMA_BALANCING=y ++CONFIG_NUMA_BALANCING_DEFAULT_ENABLED=y ++CONFIG_CGROUPS=y ++CONFIG_PAGE_COUNTER=y ++CONFIG_MEMCG=y ++CONFIG_MEMCG_SWAP=y ++CONFIG_MEMCG_KMEM=y ++CONFIG_BLK_CGROUP=y ++CONFIG_CGROUP_WRITEBACK=y ++CONFIG_CGROUP_SCHED=y ++CONFIG_FAIR_GROUP_SCHED=y ++CONFIG_CFS_BANDWIDTH=y ++CONFIG_RT_GROUP_SCHED=y ++CONFIG_CGROUP_PIDS=y ++CONFIG_CGROUP_RDMA=y ++CONFIG_CGROUP_FREEZER=y ++CONFIG_CGROUP_HUGETLB=y ++CONFIG_CPUSETS=y ++CONFIG_PROC_PID_CPUSET=y ++CONFIG_CGROUP_DEVICE=y ++CONFIG_CGROUP_CPUACCT=y ++CONFIG_CGROUP_PERF=y ++CONFIG_CGROUP_BPF=y ++# CONFIG_CGROUP_MISC is not set ++# CONFIG_CGROUP_DEBUG is not set ++CONFIG_SOCK_CGROUP_DATA=y ++CONFIG_NAMESPACES=y ++CONFIG_UTS_NS=y ++CONFIG_TIME_NS=y ++CONFIG_IPC_NS=y ++CONFIG_USER_NS=y ++CONFIG_PID_NS=y ++CONFIG_NET_NS=y ++# CONFIG_CHECKPOINT_RESTORE is not set ++CONFIG_SCHED_AUTOGROUP=y ++# CONFIG_SYSFS_DEPRECATED is not set ++CONFIG_RELAY=y ++CONFIG_BLK_DEV_INITRD=y ++CONFIG_INITRAMFS_SOURCE="" ++CONFIG_RD_GZIP=y ++CONFIG_RD_BZIP2=y ++CONFIG_RD_LZMA=y ++CONFIG_RD_XZ=y ++CONFIG_RD_LZO=y ++CONFIG_RD_LZ4=y ++CONFIG_RD_ZSTD=y ++CONFIG_BOOT_CONFIG=y ++CONFIG_CC_OPTIMIZE_FOR_PERFORMANCE=y ++# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set ++CONFIG_LD_ORPHAN_WARN=y ++CONFIG_SYSCTL=y ++CONFIG_HAVE_UID16=y ++CONFIG_SYSCTL_EXCEPTION_TRACE=y ++CONFIG_EXPERT=y ++CONFIG_UID16=y ++CONFIG_MULTIUSER=y ++# CONFIG_SGETMASK_SYSCALL is not set ++CONFIG_SYSFS_SYSCALL=y ++CONFIG_FHANDLE=y ++CONFIG_POSIX_TIMERS=y ++CONFIG_PRINTK=y ++CONFIG_BUG=y ++CONFIG_ELF_CORE=y ++CONFIG_BASE_FULL=y ++CONFIG_FUTEX=y ++CONFIG_FUTEX_PI=y ++CONFIG_HAVE_FUTEX_CMPXCHG=y ++CONFIG_EPOLL=y ++CONFIG_SIGNALFD=y ++CONFIG_TIMERFD=y ++CONFIG_EVENTFD=y ++CONFIG_SHMEM=y ++CONFIG_AIO=y ++CONFIG_IO_URING=y ++CONFIG_ADVISE_SYSCALLS=y ++CONFIG_MEMBARRIER=y ++CONFIG_KALLSYMS=y ++CONFIG_KALLSYMS_ALL=y ++CONFIG_KALLSYMS_BASE_RELATIVE=y ++# CONFIG_USERFAULTFD is not set ++CONFIG_ARCH_HAS_MEMBARRIER_SYNC_CORE=y ++CONFIG_KCMP=y ++CONFIG_RSEQ=y ++# CONFIG_DEBUG_RSEQ is not set ++# CONFIG_EMBEDDED is not set ++CONFIG_HAVE_PERF_EVENTS=y ++# CONFIG_PC104 is not set ++ ++# ++# Kernel Performance Events And Counters ++# ++CONFIG_PERF_EVENTS=y ++# CONFIG_DEBUG_PERF_USE_VMALLOC is not set ++# end of Kernel Performance Events And Counters ++ ++CONFIG_VM_EVENT_COUNTERS=y ++CONFIG_SLUB_DEBUG=y ++# CONFIG_COMPAT_BRK is not set ++# CONFIG_SLAB is not set ++CONFIG_SLUB=y ++# CONFIG_SLOB is not set ++CONFIG_SLAB_MERGE_DEFAULT=y ++# CONFIG_SLAB_FREELIST_RANDOM is not set ++# CONFIG_SLAB_FREELIST_HARDENED is not set ++# CONFIG_SHUFFLE_PAGE_ALLOCATOR is not set ++CONFIG_SLUB_CPU_PARTIAL=y ++CONFIG_SYSTEM_DATA_VERIFICATION=y ++CONFIG_PROFILING=y ++CONFIG_TRACEPOINTS=y ++# end of General setup ++ ++CONFIG_ARM64=y ++CONFIG_64BIT=y ++CONFIG_MMU=y ++CONFIG_ARM64_PAGE_SHIFT=12 ++CONFIG_ARM64_CONT_PTE_SHIFT=4 ++CONFIG_ARM64_CONT_PMD_SHIFT=4 ++CONFIG_ARCH_MMAP_RND_BITS_MIN=18 ++CONFIG_ARCH_MMAP_RND_BITS_MAX=33 ++CONFIG_ARCH_MMAP_RND_COMPAT_BITS_MIN=11 ++CONFIG_ARCH_MMAP_RND_COMPAT_BITS_MAX=16 ++CONFIG_STACKTRACE_SUPPORT=y ++CONFIG_ILLEGAL_POINTER_VALUE=0xdead000000000000 ++CONFIG_LOCKDEP_SUPPORT=y ++CONFIG_GENERIC_BUG=y ++CONFIG_GENERIC_BUG_RELATIVE_POINTERS=y ++CONFIG_GENERIC_HWEIGHT=y ++CONFIG_GENERIC_CSUM=y ++CONFIG_GENERIC_CALIBRATE_DELAY=y ++CONFIG_ARCH_MHP_MEMMAP_ON_MEMORY_ENABLE=y ++CONFIG_SMP=y ++CONFIG_KERNEL_MODE_NEON=y ++CONFIG_FIX_EARLYCON_MEM=y ++CONFIG_PGTABLE_LEVELS=4 ++CONFIG_ARCH_SUPPORTS_UPROBES=y ++CONFIG_ARCH_PROC_KCORE_TEXT=y ++ ++# ++# Platform selection ++# ++# CONFIG_ARCH_ACTIONS is not set ++# CONFIG_ARCH_SUNXI is not set ++# CONFIG_ARCH_ALPINE is not set ++# CONFIG_ARCH_APPLE is not set ++CONFIG_ARCH_BAIKAL=y ++# CONFIG_ARCH_BCM2835 is not set ++# CONFIG_ARCH_BCM4908 is not set ++# CONFIG_ARCH_BCM_IPROC is not set ++# CONFIG_ARCH_BERLIN is not set ++# CONFIG_ARCH_BITMAIN is not set ++# CONFIG_ARCH_BRCMSTB is not set ++# CONFIG_ARCH_EXYNOS is not set ++# CONFIG_ARCH_SPARX5 is not set ++# CONFIG_ARCH_K3 is not set ++# CONFIG_ARCH_LAYERSCAPE is not set ++# CONFIG_ARCH_LG1K is not set ++# CONFIG_ARCH_HISI is not set ++# CONFIG_ARCH_KEEMBAY is not set ++# CONFIG_ARCH_MEDIATEK is not set ++# CONFIG_ARCH_MESON is not set ++# CONFIG_ARCH_MVEBU is not set ++# CONFIG_ARCH_MXC is not set ++# CONFIG_ARCH_QCOM is not set ++# CONFIG_ARCH_REALTEK is not set ++# CONFIG_ARCH_RENESAS is not set ++CONFIG_ARCH_ROCKCHIP=y ++# CONFIG_ARCH_S32 is not set ++# CONFIG_ARCH_SEATTLE is not set ++# CONFIG_ARCH_INTEL_SOCFPGA is not set ++# CONFIG_ARCH_SYNQUACER is not set ++# CONFIG_ARCH_TEGRA is not set ++# CONFIG_ARCH_SPRD is not set ++# CONFIG_ARCH_THUNDER is not set ++# CONFIG_ARCH_THUNDER2 is not set ++# CONFIG_ARCH_UNIPHIER is not set ++# CONFIG_ARCH_VEXPRESS is not set ++# CONFIG_ARCH_VISCONTI is not set ++# CONFIG_ARCH_XGENE is not set ++# CONFIG_ARCH_ZYNQMP is not set ++# end of Platform selection ++ ++# ++# Kernel Features ++# ++ ++# ++# ARM errata workarounds via the alternatives framework ++# ++CONFIG_ARM64_WORKAROUND_CLEAN_CACHE=y ++CONFIG_ARM64_ERRATUM_826319=y ++CONFIG_ARM64_ERRATUM_827319=y ++CONFIG_ARM64_ERRATUM_824069=y ++CONFIG_ARM64_ERRATUM_819472=y ++CONFIG_ARM64_ERRATUM_832075=y ++CONFIG_ARM64_ERRATUM_845719=y ++CONFIG_ARM64_ERRATUM_843419=y ++CONFIG_ARM64_LD_HAS_FIX_ERRATUM_843419=y ++CONFIG_ARM64_ERRATUM_1024718=y ++CONFIG_ARM64_ERRATUM_1418040=y ++CONFIG_ARM64_WORKAROUND_SPECULATIVE_AT=y ++CONFIG_ARM64_ERRATUM_1165522=y ++CONFIG_ARM64_ERRATUM_1319367=y ++CONFIG_ARM64_ERRATUM_1530923=y ++CONFIG_ARM64_WORKAROUND_REPEAT_TLBI=y ++CONFIG_ARM64_ERRATUM_1286807=y ++CONFIG_ARM64_ERRATUM_1463225=y ++CONFIG_ARM64_ERRATUM_1542419=y ++CONFIG_ARM64_ERRATUM_1508412=y ++CONFIG_CAVIUM_ERRATUM_22375=y ++CONFIG_CAVIUM_ERRATUM_23144=y ++CONFIG_CAVIUM_ERRATUM_23154=y ++CONFIG_CAVIUM_ERRATUM_27456=y ++CONFIG_CAVIUM_ERRATUM_30115=y ++CONFIG_CAVIUM_TX2_ERRATUM_219=y ++CONFIG_FUJITSU_ERRATUM_010001=y ++CONFIG_HISILICON_ERRATUM_161600802=y ++CONFIG_QCOM_FALKOR_ERRATUM_1003=y ++CONFIG_QCOM_FALKOR_ERRATUM_1009=y ++CONFIG_QCOM_QDF2400_ERRATUM_0065=y ++CONFIG_QCOM_FALKOR_ERRATUM_E1041=y ++CONFIG_NVIDIA_CARMEL_CNP_ERRATUM=y ++CONFIG_SOCIONEXT_SYNQUACER_PREITS=y ++# end of ARM errata workarounds via the alternatives framework ++ ++CONFIG_ARM64_4K_PAGES=y ++# CONFIG_ARM64_16K_PAGES is not set ++# CONFIG_ARM64_64K_PAGES is not set ++# CONFIG_ARM64_VA_BITS_39 is not set ++CONFIG_ARM64_VA_BITS_48=y ++CONFIG_ARM64_VA_BITS=48 ++CONFIG_ARM64_PA_BITS_48=y ++CONFIG_ARM64_PA_BITS=48 ++# CONFIG_CPU_BIG_ENDIAN is not set ++CONFIG_CPU_LITTLE_ENDIAN=y ++CONFIG_SCHED_MC=y ++# CONFIG_SCHED_SMT is not set ++CONFIG_NR_CPUS=256 ++CONFIG_HOTPLUG_CPU=y ++CONFIG_NUMA=y ++CONFIG_NODES_SHIFT=2 ++CONFIG_USE_PERCPU_NUMA_NODE_ID=y ++CONFIG_HAVE_SETUP_PER_CPU_AREA=y ++CONFIG_NEED_PER_CPU_EMBED_FIRST_CHUNK=y ++# CONFIG_HZ_100 is not set ++# CONFIG_HZ_250 is not set ++# CONFIG_HZ_300 is not set ++CONFIG_HZ_1000=y ++CONFIG_HZ=1000 ++CONFIG_SCHED_HRTICK=y ++CONFIG_ARCH_SPARSEMEM_ENABLE=y ++CONFIG_HW_PERF_EVENTS=y ++CONFIG_ARCH_HAS_FILTER_PGPROT=y ++# CONFIG_PARAVIRT is not set ++# CONFIG_PARAVIRT_TIME_ACCOUNTING is not set ++CONFIG_KEXEC=y ++# CONFIG_KEXEC_FILE is not set ++# CONFIG_CRASH_DUMP is not set ++CONFIG_TRANS_TABLE=y ++# CONFIG_XEN is not set ++CONFIG_FORCE_MAX_ZONEORDER=11 ++CONFIG_UNMAP_KERNEL_AT_EL0=y ++CONFIG_RODATA_FULL_DEFAULT_ENABLED=y ++# CONFIG_ARM64_SW_TTBR0_PAN is not set ++CONFIG_ARM64_TAGGED_ADDR_ABI=y ++CONFIG_COMPAT=y ++CONFIG_KUSER_HELPERS=y ++CONFIG_ARMV8_DEPRECATED=y ++CONFIG_SWP_EMULATION=y ++CONFIG_CP15_BARRIER_EMULATION=y ++CONFIG_SETEND_EMULATION=y ++ ++# ++# ARMv8.1 architectural features ++# ++CONFIG_ARM64_HW_AFDBM=y ++CONFIG_ARM64_PAN=y ++CONFIG_AS_HAS_LDAPR=y ++CONFIG_AS_HAS_LSE_ATOMICS=y ++CONFIG_ARM64_LSE_ATOMICS=y ++CONFIG_ARM64_USE_LSE_ATOMICS=y ++# end of ARMv8.1 architectural features ++ ++# ++# ARMv8.2 architectural features ++# ++# CONFIG_ARM64_PMEM is not set ++CONFIG_ARM64_RAS_EXTN=y ++CONFIG_ARM64_CNP=y ++# end of ARMv8.2 architectural features ++ ++# ++# ARMv8.3 architectural features ++# ++CONFIG_ARM64_PTR_AUTH=y ++CONFIG_ARM64_PTR_AUTH_KERNEL=y ++CONFIG_CC_HAS_BRANCH_PROT_PAC_RET=y ++CONFIG_CC_HAS_SIGN_RETURN_ADDRESS=y ++CONFIG_AS_HAS_PAC=y ++CONFIG_AS_HAS_CFI_NEGATE_RA_STATE=y ++# end of ARMv8.3 architectural features ++ ++# ++# ARMv8.4 architectural features ++# ++CONFIG_ARM64_AMU_EXTN=y ++CONFIG_AS_HAS_ARMV8_4=y ++CONFIG_ARM64_TLB_RANGE=y ++# end of ARMv8.4 architectural features ++ ++# ++# ARMv8.5 architectural features ++# ++CONFIG_AS_HAS_ARMV8_5=y ++CONFIG_ARM64_BTI=y ++CONFIG_ARM64_BTI_KERNEL=y ++CONFIG_CC_HAS_BRANCH_PROT_PAC_RET_BTI=y ++CONFIG_ARM64_E0PD=y ++CONFIG_ARCH_RANDOM=y ++CONFIG_ARM64_AS_HAS_MTE=y ++CONFIG_ARM64_MTE=y ++# end of ARMv8.5 architectural features ++ ++# ++# ARMv8.7 architectural features ++# ++CONFIG_ARM64_EPAN=y ++# end of ARMv8.7 architectural features ++ ++CONFIG_ARM64_SVE=y ++CONFIG_ARM64_MODULE_PLTS=y ++# CONFIG_ARM64_PSEUDO_NMI is not set ++CONFIG_RELOCATABLE=y ++# CONFIG_RANDOMIZE_BASE is not set ++CONFIG_CC_HAVE_STACKPROTECTOR_SYSREG=y ++CONFIG_STACKPROTECTOR_PER_TASK=y ++# end of Kernel Features ++ ++# ++# Boot options ++# ++CONFIG_CMDLINE="" ++CONFIG_EFI_STUB=y ++CONFIG_EFI=y ++CONFIG_DMI=y ++# end of Boot options ++ ++CONFIG_SYSVIPC_COMPAT=y ++ ++# ++# Power management options ++# ++CONFIG_SUSPEND=y ++CONFIG_SUSPEND_FREEZER=y ++# CONFIG_SUSPEND_SKIP_SYNC is not set ++CONFIG_HIBERNATE_CALLBACKS=y ++CONFIG_HIBERNATION=y ++CONFIG_HIBERNATION_SNAPSHOT_DEV=y ++CONFIG_PM_STD_PARTITION="" ++CONFIG_PM_SLEEP=y ++CONFIG_PM_SLEEP_SMP=y ++# CONFIG_PM_AUTOSLEEP is not set ++# CONFIG_PM_WAKELOCKS is not set ++CONFIG_PM=y ++# CONFIG_PM_DEBUG is not set ++CONFIG_PM_CLK=y ++CONFIG_PM_GENERIC_DOMAINS=y ++# CONFIG_WQ_POWER_EFFICIENT_DEFAULT is not set ++CONFIG_PM_GENERIC_DOMAINS_SLEEP=y ++CONFIG_PM_GENERIC_DOMAINS_OF=y ++CONFIG_CPU_PM=y ++# CONFIG_ENERGY_MODEL is not set ++CONFIG_ARCH_HIBERNATION_POSSIBLE=y ++CONFIG_ARCH_HIBERNATION_HEADER=y ++CONFIG_ARCH_SUSPEND_POSSIBLE=y ++# end of Power management options ++ ++# ++# CPU Power Management ++# ++ ++# ++# CPU Idle ++# ++CONFIG_CPU_IDLE=y ++CONFIG_CPU_IDLE_MULTIPLE_DRIVERS=y ++# CONFIG_CPU_IDLE_GOV_LADDER is not set ++CONFIG_CPU_IDLE_GOV_MENU=y ++# CONFIG_CPU_IDLE_GOV_TEO is not set ++CONFIG_DT_IDLE_STATES=y ++ ++# ++# ARM CPU Idle Drivers ++# ++CONFIG_ARM_CPUIDLE=y ++# CONFIG_ARM_PSCI_CPUIDLE is not set ++# end of ARM CPU Idle Drivers ++# end of CPU Idle ++ ++# ++# CPU Frequency scaling ++# ++CONFIG_CPU_FREQ=y ++CONFIG_CPU_FREQ_GOV_ATTR_SET=y ++CONFIG_CPU_FREQ_GOV_COMMON=y ++CONFIG_CPU_FREQ_STAT=y ++# CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE is not set ++# CONFIG_CPU_FREQ_DEFAULT_GOV_POWERSAVE is not set ++# CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE is not set ++# CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND is not set ++# CONFIG_CPU_FREQ_DEFAULT_GOV_CONSERVATIVE is not set ++CONFIG_CPU_FREQ_DEFAULT_GOV_SCHEDUTIL=y ++CONFIG_CPU_FREQ_GOV_PERFORMANCE=y ++CONFIG_CPU_FREQ_GOV_POWERSAVE=y ++CONFIG_CPU_FREQ_GOV_USERSPACE=y ++CONFIG_CPU_FREQ_GOV_ONDEMAND=y ++CONFIG_CPU_FREQ_GOV_CONSERVATIVE=y ++CONFIG_CPU_FREQ_GOV_SCHEDUTIL=y ++ ++# ++# CPU frequency scaling drivers ++# ++CONFIG_CPUFREQ_DT=m ++CONFIG_CPUFREQ_DT_PLATDEV=y ++CONFIG_ARM_SCPI_CPUFREQ=y ++# end of CPU Frequency scaling ++# end of CPU Power Management ++ ++CONFIG_ARCH_SUPPORTS_ACPI=y ++# CONFIG_ACPI is not set ++# CONFIG_VIRTUALIZATION is not set ++CONFIG_ARM64_CRYPTO=y ++CONFIG_CRYPTO_SHA256_ARM64=y ++CONFIG_CRYPTO_SHA512_ARM64=y ++CONFIG_CRYPTO_SHA1_ARM64_CE=y ++CONFIG_CRYPTO_SHA2_ARM64_CE=y ++# CONFIG_CRYPTO_SHA512_ARM64_CE is not set ++CONFIG_CRYPTO_SHA3_ARM64=m ++CONFIG_CRYPTO_SM3_ARM64_CE=m ++CONFIG_CRYPTO_SM4_ARM64_CE=m ++CONFIG_CRYPTO_GHASH_ARM64_CE=y ++# CONFIG_CRYPTO_CRCT10DIF_ARM64_CE is not set ++CONFIG_CRYPTO_AES_ARM64=y ++CONFIG_CRYPTO_AES_ARM64_CE=y ++CONFIG_CRYPTO_AES_ARM64_CE_CCM=y ++CONFIG_CRYPTO_AES_ARM64_CE_BLK=y ++CONFIG_CRYPTO_AES_ARM64_NEON_BLK=y ++CONFIG_CRYPTO_CHACHA20_NEON=y ++CONFIG_CRYPTO_POLY1305_NEON=m ++CONFIG_CRYPTO_NHPOLY1305_NEON=m ++CONFIG_CRYPTO_AES_ARM64_BS=y ++ ++# ++# General architecture-dependent options ++# ++CONFIG_CRASH_CORE=y ++CONFIG_KEXEC_CORE=y ++CONFIG_KPROBES=y ++CONFIG_JUMP_LABEL=y ++# CONFIG_STATIC_KEYS_SELFTEST is not set ++CONFIG_UPROBES=y ++CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS=y ++CONFIG_KRETPROBES=y ++CONFIG_HAVE_KPROBES=y ++CONFIG_HAVE_KRETPROBES=y ++CONFIG_HAVE_FUNCTION_ERROR_INJECTION=y ++CONFIG_HAVE_NMI=y ++CONFIG_TRACE_IRQFLAGS_SUPPORT=y ++CONFIG_HAVE_ARCH_TRACEHOOK=y ++CONFIG_HAVE_DMA_CONTIGUOUS=y ++CONFIG_GENERIC_SMP_IDLE_THREAD=y ++CONFIG_GENERIC_IDLE_POLL_SETUP=y ++CONFIG_ARCH_HAS_FORTIFY_SOURCE=y ++CONFIG_ARCH_HAS_KEEPINITRD=y ++CONFIG_ARCH_HAS_SET_MEMORY=y ++CONFIG_ARCH_HAS_SET_DIRECT_MAP=y ++CONFIG_HAVE_ARCH_THREAD_STRUCT_WHITELIST=y ++CONFIG_ARCH_WANTS_NO_INSTR=y ++CONFIG_HAVE_ASM_MODVERSIONS=y ++CONFIG_HAVE_REGS_AND_STACK_ACCESS_API=y ++CONFIG_HAVE_RSEQ=y ++CONFIG_HAVE_FUNCTION_ARG_ACCESS_API=y ++CONFIG_HAVE_HW_BREAKPOINT=y ++CONFIG_HAVE_PERF_REGS=y ++CONFIG_HAVE_PERF_USER_STACK_DUMP=y ++CONFIG_HAVE_ARCH_JUMP_LABEL=y ++CONFIG_HAVE_ARCH_JUMP_LABEL_RELATIVE=y ++CONFIG_MMU_GATHER_TABLE_FREE=y ++CONFIG_MMU_GATHER_RCU_TABLE_FREE=y ++CONFIG_ARCH_HAVE_NMI_SAFE_CMPXCHG=y ++CONFIG_HAVE_ALIGNED_STRUCT_PAGE=y ++CONFIG_HAVE_CMPXCHG_LOCAL=y ++CONFIG_HAVE_CMPXCHG_DOUBLE=y ++CONFIG_ARCH_WANT_COMPAT_IPC_PARSE_VERSION=y ++CONFIG_HAVE_ARCH_SECCOMP=y ++CONFIG_HAVE_ARCH_SECCOMP_FILTER=y ++CONFIG_SECCOMP=y ++CONFIG_SECCOMP_FILTER=y ++# CONFIG_SECCOMP_CACHE_DEBUG is not set ++CONFIG_HAVE_ARCH_STACKLEAK=y ++CONFIG_HAVE_STACKPROTECTOR=y ++CONFIG_STACKPROTECTOR=y ++CONFIG_STACKPROTECTOR_STRONG=y ++CONFIG_ARCH_SUPPORTS_LTO_CLANG=y ++CONFIG_ARCH_SUPPORTS_LTO_CLANG_THIN=y ++CONFIG_LTO_NONE=y ++CONFIG_ARCH_SUPPORTS_CFI_CLANG=y ++CONFIG_HAVE_CONTEXT_TRACKING=y ++CONFIG_HAVE_VIRT_CPU_ACCOUNTING_GEN=y ++CONFIG_HAVE_IRQ_TIME_ACCOUNTING=y ++CONFIG_HAVE_MOVE_PUD=y ++CONFIG_HAVE_MOVE_PMD=y ++CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE=y ++CONFIG_HAVE_ARCH_HUGE_VMAP=y ++CONFIG_ARCH_WANT_HUGE_PMD_SHARE=y ++CONFIG_HAVE_MOD_ARCH_SPECIFIC=y ++CONFIG_MODULES_USE_ELF_RELA=y ++CONFIG_ARCH_HAS_ELF_RANDOMIZE=y ++CONFIG_HAVE_ARCH_MMAP_RND_BITS=y ++CONFIG_ARCH_MMAP_RND_BITS=18 ++CONFIG_HAVE_ARCH_MMAP_RND_COMPAT_BITS=y ++CONFIG_ARCH_MMAP_RND_COMPAT_BITS=11 ++CONFIG_ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT=y ++CONFIG_CLONE_BACKWARDS=y ++CONFIG_OLD_SIGSUSPEND3=y ++CONFIG_COMPAT_OLD_SIGACTION=y ++CONFIG_COMPAT_32BIT_TIME=y ++CONFIG_HAVE_ARCH_VMAP_STACK=y ++CONFIG_VMAP_STACK=y ++CONFIG_HAVE_ARCH_RANDOMIZE_KSTACK_OFFSET=y ++# CONFIG_RANDOMIZE_KSTACK_OFFSET_DEFAULT is not set ++CONFIG_ARCH_HAS_STRICT_KERNEL_RWX=y ++CONFIG_STRICT_KERNEL_RWX=y ++CONFIG_ARCH_HAS_STRICT_MODULE_RWX=y ++CONFIG_STRICT_MODULE_RWX=y ++CONFIG_HAVE_ARCH_COMPILER_H=y ++CONFIG_HAVE_ARCH_PREL32_RELOCATIONS=y ++CONFIG_ARCH_USE_MEMREMAP_PROT=y ++# CONFIG_LOCK_EVENT_COUNTS is not set ++CONFIG_ARCH_HAS_RELR=y ++CONFIG_ARCH_WANT_LD_ORPHAN_WARN=y ++CONFIG_HAVE_ARCH_PFN_VALID=y ++CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y ++ ++# ++# GCOV-based kernel profiling ++# ++# CONFIG_GCOV_KERNEL is not set ++CONFIG_ARCH_HAS_GCOV_PROFILE_ALL=y ++# end of GCOV-based kernel profiling ++ ++CONFIG_HAVE_GCC_PLUGINS=y ++# end of General architecture-dependent options ++ ++CONFIG_RT_MUTEXES=y ++CONFIG_BASE_SMALL=0 ++CONFIG_MODULES=y ++# CONFIG_MODULE_FORCE_LOAD is not set ++CONFIG_MODULE_UNLOAD=y ++# CONFIG_MODULE_FORCE_UNLOAD is not set ++# CONFIG_MODVERSIONS is not set ++# CONFIG_MODULE_SRCVERSION_ALL is not set ++# CONFIG_MODULE_SIG is not set ++# CONFIG_MODULE_COMPRESS_NONE is not set ++# CONFIG_MODULE_COMPRESS_GZIP is not set ++CONFIG_MODULE_COMPRESS_XZ=y ++# CONFIG_MODULE_COMPRESS_ZSTD is not set ++# CONFIG_MODULE_ALLOW_MISSING_NAMESPACE_IMPORTS is not set ++CONFIG_MODPROBE_PATH="/sbin/modprobe" ++# CONFIG_TRIM_UNUSED_KSYMS is not set ++CONFIG_MODULES_TREE_LOOKUP=y ++CONFIG_BLOCK=y ++CONFIG_BLK_CGROUP_RWSTAT=y ++CONFIG_BLK_DEV_BSG_COMMON=y ++CONFIG_BLK_DEV_BSGLIB=y ++CONFIG_BLK_DEV_INTEGRITY=y ++CONFIG_BLK_DEV_INTEGRITY_T10=y ++CONFIG_BLK_DEV_ZONED=y ++CONFIG_BLK_DEV_THROTTLING=y ++# CONFIG_BLK_DEV_THROTTLING_LOW is not set ++CONFIG_BLK_WBT=y ++CONFIG_BLK_WBT_MQ=y ++# CONFIG_BLK_CGROUP_IOLATENCY is not set ++# CONFIG_BLK_CGROUP_FC_APPID is not set ++# CONFIG_BLK_CGROUP_IOCOST is not set ++# CONFIG_BLK_CGROUP_IOPRIO is not set ++CONFIG_BLK_DEBUG_FS=y ++CONFIG_BLK_DEBUG_FS_ZONED=y ++# CONFIG_BLK_SED_OPAL is not set ++# CONFIG_BLK_INLINE_ENCRYPTION is not set ++ ++# ++# Partition Types ++# ++CONFIG_PARTITION_ADVANCED=y ++# CONFIG_ACORN_PARTITION is not set ++# CONFIG_AIX_PARTITION is not set ++# CONFIG_OSF_PARTITION is not set ++# CONFIG_AMIGA_PARTITION is not set ++# CONFIG_ATARI_PARTITION is not set ++# CONFIG_MAC_PARTITION is not set ++CONFIG_MSDOS_PARTITION=y ++# CONFIG_BSD_DISKLABEL is not set ++# CONFIG_MINIX_SUBPARTITION is not set ++# CONFIG_SOLARIS_X86_PARTITION is not set ++# CONFIG_UNIXWARE_DISKLABEL is not set ++# CONFIG_LDM_PARTITION is not set ++# CONFIG_SGI_PARTITION is not set ++# CONFIG_ULTRIX_PARTITION is not set ++# CONFIG_SUN_PARTITION is not set ++# CONFIG_KARMA_PARTITION is not set ++CONFIG_EFI_PARTITION=y ++# CONFIG_SYSV68_PARTITION is not set ++# CONFIG_CMDLINE_PARTITION is not set ++# end of Partition Types ++ ++CONFIG_BLOCK_COMPAT=y ++CONFIG_BLK_MQ_PCI=y ++CONFIG_BLK_MQ_VIRTIO=y ++CONFIG_BLK_PM=y ++CONFIG_BLOCK_HOLDER_DEPRECATED=y ++ ++# ++# IO Schedulers ++# ++CONFIG_MQ_IOSCHED_DEADLINE=y ++CONFIG_MQ_IOSCHED_KYBER=y ++CONFIG_IOSCHED_BFQ=y ++CONFIG_BFQ_GROUP_IOSCHED=y ++# CONFIG_BFQ_CGROUP_DEBUG is not set ++# end of IO Schedulers ++ ++CONFIG_PADATA=y ++CONFIG_ASN1=y ++CONFIG_UNINLINE_SPIN_UNLOCK=y ++CONFIG_ARCH_SUPPORTS_ATOMIC_RMW=y ++CONFIG_MUTEX_SPIN_ON_OWNER=y ++CONFIG_RWSEM_SPIN_ON_OWNER=y ++CONFIG_LOCK_SPIN_ON_OWNER=y ++CONFIG_ARCH_USE_QUEUED_SPINLOCKS=y ++CONFIG_QUEUED_SPINLOCKS=y ++CONFIG_ARCH_USE_QUEUED_RWLOCKS=y ++CONFIG_QUEUED_RWLOCKS=y ++CONFIG_ARCH_HAS_NON_OVERLAPPING_ADDRESS_SPACE=y ++CONFIG_ARCH_HAS_SYSCALL_WRAPPER=y ++CONFIG_FREEZER=y ++ ++# ++# Executable file formats ++# ++CONFIG_BINFMT_ELF=y ++CONFIG_COMPAT_BINFMT_ELF=y ++CONFIG_ARCH_BINFMT_ELF_STATE=y ++CONFIG_ARCH_HAVE_ELF_PROT=y ++CONFIG_ARCH_USE_GNU_PROPERTY=y ++CONFIG_ELFCORE=y ++# CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set ++CONFIG_BINFMT_SCRIPT=y ++CONFIG_BINFMT_MISC=m ++CONFIG_COREDUMP=y ++# end of Executable file formats ++ ++# ++# Memory Management options ++# ++CONFIG_SPARSEMEM=y ++CONFIG_SPARSEMEM_EXTREME=y ++CONFIG_SPARSEMEM_VMEMMAP_ENABLE=y ++CONFIG_SPARSEMEM_VMEMMAP=y ++CONFIG_HAVE_FAST_GUP=y ++CONFIG_ARCH_KEEP_MEMBLOCK=y ++CONFIG_MEMORY_ISOLATION=y ++CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y ++# CONFIG_MEMORY_HOTPLUG is not set ++CONFIG_ARCH_ENABLE_MEMORY_HOTREMOVE=y ++CONFIG_SPLIT_PTLOCK_CPUS=4 ++CONFIG_ARCH_ENABLE_SPLIT_PMD_PTLOCK=y ++CONFIG_COMPACTION=y ++CONFIG_PAGE_REPORTING=y ++CONFIG_MIGRATION=y ++CONFIG_ARCH_ENABLE_HUGEPAGE_MIGRATION=y ++CONFIG_ARCH_ENABLE_THP_MIGRATION=y ++CONFIG_CONTIG_ALLOC=y ++CONFIG_PHYS_ADDR_T_64BIT=y ++CONFIG_KSM=y ++CONFIG_DEFAULT_MMAP_MIN_ADDR=4096 ++CONFIG_ARCH_SUPPORTS_MEMORY_FAILURE=y ++# CONFIG_MEMORY_FAILURE is not set ++CONFIG_TRANSPARENT_HUGEPAGE=y ++# CONFIG_TRANSPARENT_HUGEPAGE_ALWAYS is not set ++CONFIG_TRANSPARENT_HUGEPAGE_MADVISE=y ++CONFIG_CLEANCACHE=y ++CONFIG_FRONTSWAP=y ++CONFIG_CMA=y ++# CONFIG_CMA_DEBUG is not set ++# CONFIG_CMA_DEBUGFS is not set ++# CONFIG_CMA_SYSFS is not set ++CONFIG_CMA_AREAS=7 ++CONFIG_ZSWAP=y ++# CONFIG_ZSWAP_COMPRESSOR_DEFAULT_DEFLATE is not set ++# CONFIG_ZSWAP_COMPRESSOR_DEFAULT_LZO is not set ++# CONFIG_ZSWAP_COMPRESSOR_DEFAULT_842 is not set ++# CONFIG_ZSWAP_COMPRESSOR_DEFAULT_LZ4 is not set ++# CONFIG_ZSWAP_COMPRESSOR_DEFAULT_LZ4HC is not set ++CONFIG_ZSWAP_COMPRESSOR_DEFAULT_ZSTD=y ++CONFIG_ZSWAP_COMPRESSOR_DEFAULT="zstd" ++# CONFIG_ZSWAP_ZPOOL_DEFAULT_ZBUD is not set ++CONFIG_ZSWAP_ZPOOL_DEFAULT_Z3FOLD=y ++# CONFIG_ZSWAP_ZPOOL_DEFAULT_ZSMALLOC is not set ++CONFIG_ZSWAP_ZPOOL_DEFAULT="z3fold" ++CONFIG_ZSWAP_DEFAULT_ON=y ++CONFIG_ZPOOL=y ++CONFIG_ZBUD=y ++CONFIG_Z3FOLD=y ++CONFIG_ZSMALLOC=y ++# CONFIG_ZSMALLOC_STAT is not set ++CONFIG_GENERIC_EARLY_IOREMAP=y ++# CONFIG_DEFERRED_STRUCT_PAGE_INIT is not set ++# CONFIG_IDLE_PAGE_TRACKING is not set ++CONFIG_ARCH_HAS_CACHE_LINE_SIZE=y ++CONFIG_ARCH_HAS_PTE_DEVMAP=y ++CONFIG_ARCH_HAS_ZONE_DMA_SET=y ++CONFIG_ZONE_DMA=y ++CONFIG_ZONE_DMA32=y ++CONFIG_ARCH_USES_HIGH_VMA_FLAGS=y ++# CONFIG_PERCPU_STATS is not set ++# CONFIG_GUP_TEST is not set ++# CONFIG_READ_ONLY_THP_FOR_FS is not set ++CONFIG_ARCH_HAS_PTE_SPECIAL=y ++CONFIG_SECRETMEM=y ++ ++# ++# Data Access Monitoring ++# ++# CONFIG_DAMON is not set ++# end of Data Access Monitoring ++# end of Memory Management options ++ ++CONFIG_NET=y ++CONFIG_COMPAT_NETLINK_MESSAGES=y ++CONFIG_NET_INGRESS=y ++CONFIG_NET_REDIRECT=y ++CONFIG_SKB_EXTENSIONS=y ++ ++# ++# Networking options ++# ++CONFIG_PACKET=y ++CONFIG_PACKET_DIAG=m ++CONFIG_UNIX=y ++CONFIG_UNIX_SCM=y ++CONFIG_AF_UNIX_OOB=y ++CONFIG_UNIX_DIAG=m ++CONFIG_TLS=m ++CONFIG_TLS_DEVICE=y ++# CONFIG_TLS_TOE is not set ++CONFIG_XFRM=y ++CONFIG_XFRM_OFFLOAD=y ++CONFIG_XFRM_ALGO=m ++CONFIG_XFRM_USER=m ++CONFIG_XFRM_INTERFACE=m ++CONFIG_XFRM_SUB_POLICY=y ++CONFIG_XFRM_MIGRATE=y ++CONFIG_XFRM_STATISTICS=y ++CONFIG_XFRM_AH=m ++CONFIG_XFRM_ESP=m ++CONFIG_XFRM_IPCOMP=m ++CONFIG_NET_KEY=m ++CONFIG_NET_KEY_MIGRATE=y ++CONFIG_XDP_SOCKETS=y ++# CONFIG_XDP_SOCKETS_DIAG is not set ++CONFIG_INET=y ++CONFIG_IP_MULTICAST=y ++CONFIG_IP_ADVANCED_ROUTER=y ++CONFIG_IP_FIB_TRIE_STATS=y ++CONFIG_IP_MULTIPLE_TABLES=y ++CONFIG_IP_ROUTE_MULTIPATH=y ++CONFIG_IP_ROUTE_VERBOSE=y ++CONFIG_IP_ROUTE_CLASSID=y ++CONFIG_IP_PNP=y ++CONFIG_IP_PNP_DHCP=y ++CONFIG_IP_PNP_BOOTP=y ++CONFIG_IP_PNP_RARP=y ++CONFIG_NET_IPIP=m ++CONFIG_NET_IPGRE_DEMUX=m ++CONFIG_NET_IP_TUNNEL=m ++CONFIG_NET_IPGRE=m ++CONFIG_NET_IPGRE_BROADCAST=y ++CONFIG_IP_MROUTE_COMMON=y ++CONFIG_IP_MROUTE=y ++CONFIG_IP_MROUTE_MULTIPLE_TABLES=y ++CONFIG_IP_PIMSM_V1=y ++CONFIG_IP_PIMSM_V2=y ++CONFIG_SYN_COOKIES=y ++CONFIG_NET_IPVTI=m ++CONFIG_NET_UDP_TUNNEL=m ++CONFIG_NET_FOU=m ++CONFIG_NET_FOU_IP_TUNNELS=y ++CONFIG_INET_AH=m ++CONFIG_INET_ESP=m ++CONFIG_INET_ESP_OFFLOAD=m ++# CONFIG_INET_ESPINTCP is not set ++CONFIG_INET_IPCOMP=m ++CONFIG_INET_XFRM_TUNNEL=m ++CONFIG_INET_TUNNEL=m ++CONFIG_INET_DIAG=m ++CONFIG_INET_TCP_DIAG=m ++CONFIG_INET_UDP_DIAG=m ++CONFIG_INET_RAW_DIAG=m ++CONFIG_INET_DIAG_DESTROY=y ++CONFIG_TCP_CONG_ADVANCED=y ++CONFIG_TCP_CONG_BIC=m ++CONFIG_TCP_CONG_CUBIC=y ++CONFIG_TCP_CONG_WESTWOOD=m ++CONFIG_TCP_CONG_HTCP=m ++CONFIG_TCP_CONG_HSTCP=m ++CONFIG_TCP_CONG_HYBLA=m ++CONFIG_TCP_CONG_VEGAS=m ++CONFIG_TCP_CONG_NV=m ++CONFIG_TCP_CONG_SCALABLE=m ++CONFIG_TCP_CONG_LP=m ++CONFIG_TCP_CONG_VENO=m ++CONFIG_TCP_CONG_YEAH=m ++CONFIG_TCP_CONG_ILLINOIS=m ++CONFIG_TCP_CONG_DCTCP=m ++CONFIG_TCP_CONG_CDG=m ++CONFIG_TCP_CONG_BBR=m ++# CONFIG_DEFAULT_CUBIC is not set ++CONFIG_DEFAULT_RENO=y ++CONFIG_DEFAULT_TCP_CONG="reno" ++# CONFIG_TCP_MD5SIG is not set ++CONFIG_IPV6=y ++CONFIG_IPV6_ROUTER_PREF=y ++CONFIG_IPV6_ROUTE_INFO=y ++CONFIG_IPV6_OPTIMISTIC_DAD=y ++CONFIG_INET6_AH=m ++CONFIG_INET6_ESP=m ++CONFIG_INET6_ESP_OFFLOAD=m ++# CONFIG_INET6_ESPINTCP is not set ++CONFIG_INET6_IPCOMP=m ++CONFIG_IPV6_MIP6=m ++CONFIG_IPV6_ILA=m ++CONFIG_INET6_XFRM_TUNNEL=m ++CONFIG_INET6_TUNNEL=m ++CONFIG_IPV6_VTI=m ++CONFIG_IPV6_SIT=m ++CONFIG_IPV6_SIT_6RD=y ++CONFIG_IPV6_NDISC_NODETYPE=y ++CONFIG_IPV6_TUNNEL=m ++CONFIG_IPV6_GRE=m ++CONFIG_IPV6_FOU=m ++CONFIG_IPV6_FOU_TUNNEL=m ++CONFIG_IPV6_MULTIPLE_TABLES=y ++CONFIG_IPV6_SUBTREES=y ++CONFIG_IPV6_MROUTE=y ++CONFIG_IPV6_MROUTE_MULTIPLE_TABLES=y ++CONFIG_IPV6_PIMSM_V2=y ++CONFIG_IPV6_SEG6_LWTUNNEL=y ++CONFIG_IPV6_SEG6_HMAC=y ++CONFIG_IPV6_SEG6_BPF=y ++# CONFIG_IPV6_RPL_LWTUNNEL is not set ++# CONFIG_IPV6_IOAM6_LWTUNNEL is not set ++# CONFIG_MPTCP is not set ++# CONFIG_NETWORK_SECMARK is not set ++CONFIG_NET_PTP_CLASSIFY=y ++CONFIG_NETWORK_PHY_TIMESTAMPING=y ++CONFIG_NETFILTER=y ++CONFIG_NETFILTER_ADVANCED=y ++CONFIG_BRIDGE_NETFILTER=m ++ ++# ++# Core Netfilter Configuration ++# ++CONFIG_NETFILTER_INGRESS=y ++CONFIG_NETFILTER_NETLINK=m ++CONFIG_NETFILTER_FAMILY_BRIDGE=y ++CONFIG_NETFILTER_FAMILY_ARP=y ++# CONFIG_NETFILTER_NETLINK_HOOK is not set ++CONFIG_NETFILTER_NETLINK_ACCT=m ++CONFIG_NETFILTER_NETLINK_QUEUE=m ++CONFIG_NETFILTER_NETLINK_LOG=m ++CONFIG_NETFILTER_NETLINK_OSF=m ++CONFIG_NF_CONNTRACK=m ++CONFIG_NF_LOG_SYSLOG=m ++CONFIG_NETFILTER_CONNCOUNT=m ++CONFIG_NF_CONNTRACK_MARK=y ++CONFIG_NF_CONNTRACK_ZONES=y ++# CONFIG_NF_CONNTRACK_PROCFS is not set ++CONFIG_NF_CONNTRACK_EVENTS=y ++CONFIG_NF_CONNTRACK_TIMEOUT=y ++CONFIG_NF_CONNTRACK_TIMESTAMP=y ++CONFIG_NF_CONNTRACK_LABELS=y ++CONFIG_NF_CT_PROTO_DCCP=y ++CONFIG_NF_CT_PROTO_GRE=y ++CONFIG_NF_CT_PROTO_SCTP=y ++CONFIG_NF_CT_PROTO_UDPLITE=y ++CONFIG_NF_CONNTRACK_AMANDA=m ++CONFIG_NF_CONNTRACK_FTP=m ++CONFIG_NF_CONNTRACK_H323=m ++CONFIG_NF_CONNTRACK_IRC=m ++CONFIG_NF_CONNTRACK_BROADCAST=m ++CONFIG_NF_CONNTRACK_NETBIOS_NS=m ++CONFIG_NF_CONNTRACK_SNMP=m ++CONFIG_NF_CONNTRACK_PPTP=m ++CONFIG_NF_CONNTRACK_SANE=m ++CONFIG_NF_CONNTRACK_SIP=m ++CONFIG_NF_CONNTRACK_TFTP=m ++CONFIG_NF_CT_NETLINK=m ++CONFIG_NF_CT_NETLINK_TIMEOUT=m ++CONFIG_NF_CT_NETLINK_HELPER=m ++CONFIG_NETFILTER_NETLINK_GLUE_CT=y ++CONFIG_NF_NAT=m ++CONFIG_NF_NAT_AMANDA=m ++CONFIG_NF_NAT_FTP=m ++CONFIG_NF_NAT_IRC=m ++CONFIG_NF_NAT_SIP=m ++CONFIG_NF_NAT_TFTP=m ++CONFIG_NF_NAT_REDIRECT=y ++CONFIG_NF_NAT_MASQUERADE=y ++CONFIG_NETFILTER_SYNPROXY=m ++CONFIG_NF_TABLES=m ++CONFIG_NF_TABLES_INET=y ++CONFIG_NF_TABLES_NETDEV=y ++CONFIG_NFT_NUMGEN=m ++CONFIG_NFT_CT=m ++CONFIG_NFT_FLOW_OFFLOAD=m ++CONFIG_NFT_COUNTER=m ++CONFIG_NFT_CONNLIMIT=m ++CONFIG_NFT_LOG=m ++CONFIG_NFT_LIMIT=m ++CONFIG_NFT_MASQ=m ++CONFIG_NFT_REDIR=m ++CONFIG_NFT_NAT=m ++CONFIG_NFT_TUNNEL=m ++CONFIG_NFT_OBJREF=m ++CONFIG_NFT_QUEUE=m ++CONFIG_NFT_QUOTA=m ++CONFIG_NFT_REJECT=m ++CONFIG_NFT_REJECT_INET=m ++CONFIG_NFT_COMPAT=m ++CONFIG_NFT_HASH=m ++CONFIG_NFT_FIB=m ++CONFIG_NFT_FIB_INET=m ++CONFIG_NFT_XFRM=m ++CONFIG_NFT_SOCKET=m ++CONFIG_NFT_OSF=m ++CONFIG_NFT_TPROXY=m ++CONFIG_NFT_SYNPROXY=m ++CONFIG_NF_DUP_NETDEV=m ++CONFIG_NFT_DUP_NETDEV=m ++CONFIG_NFT_FWD_NETDEV=m ++CONFIG_NFT_FIB_NETDEV=m ++# CONFIG_NFT_REJECT_NETDEV is not set ++CONFIG_NF_FLOW_TABLE_INET=m ++CONFIG_NF_FLOW_TABLE=m ++CONFIG_NETFILTER_XTABLES=m ++CONFIG_NETFILTER_XTABLES_COMPAT=y ++ ++# ++# Xtables combined modules ++# ++CONFIG_NETFILTER_XT_MARK=m ++CONFIG_NETFILTER_XT_CONNMARK=m ++CONFIG_NETFILTER_XT_SET=m ++ ++# ++# Xtables targets ++# ++CONFIG_NETFILTER_XT_TARGET_AUDIT=m ++CONFIG_NETFILTER_XT_TARGET_CHECKSUM=m ++CONFIG_NETFILTER_XT_TARGET_CLASSIFY=m ++CONFIG_NETFILTER_XT_TARGET_CONNMARK=m ++CONFIG_NETFILTER_XT_TARGET_CT=m ++CONFIG_NETFILTER_XT_TARGET_DSCP=m ++CONFIG_NETFILTER_XT_TARGET_HL=m ++CONFIG_NETFILTER_XT_TARGET_HMARK=m ++CONFIG_NETFILTER_XT_TARGET_IDLETIMER=m ++CONFIG_NETFILTER_XT_TARGET_LED=m ++CONFIG_NETFILTER_XT_TARGET_LOG=m ++CONFIG_NETFILTER_XT_TARGET_MARK=m ++CONFIG_NETFILTER_XT_NAT=m ++CONFIG_NETFILTER_XT_TARGET_NETMAP=m ++CONFIG_NETFILTER_XT_TARGET_NFLOG=m ++CONFIG_NETFILTER_XT_TARGET_NFQUEUE=m ++CONFIG_NETFILTER_XT_TARGET_NOTRACK=m ++CONFIG_NETFILTER_XT_TARGET_RATEEST=m ++CONFIG_NETFILTER_XT_TARGET_REDIRECT=m ++CONFIG_NETFILTER_XT_TARGET_MASQUERADE=m ++CONFIG_NETFILTER_XT_TARGET_TEE=m ++CONFIG_NETFILTER_XT_TARGET_TPROXY=m ++CONFIG_NETFILTER_XT_TARGET_TRACE=m ++CONFIG_NETFILTER_XT_TARGET_TCPMSS=m ++CONFIG_NETFILTER_XT_TARGET_TCPOPTSTRIP=m ++ ++# ++# Xtables matches ++# ++CONFIG_NETFILTER_XT_MATCH_ADDRTYPE=m ++CONFIG_NETFILTER_XT_MATCH_BPF=m ++CONFIG_NETFILTER_XT_MATCH_CGROUP=m ++CONFIG_NETFILTER_XT_MATCH_CLUSTER=m ++CONFIG_NETFILTER_XT_MATCH_COMMENT=m ++CONFIG_NETFILTER_XT_MATCH_CONNBYTES=m ++CONFIG_NETFILTER_XT_MATCH_CONNLABEL=m ++CONFIG_NETFILTER_XT_MATCH_CONNLIMIT=m ++CONFIG_NETFILTER_XT_MATCH_CONNMARK=m ++CONFIG_NETFILTER_XT_MATCH_CONNTRACK=m ++CONFIG_NETFILTER_XT_MATCH_CPU=m ++CONFIG_NETFILTER_XT_MATCH_DCCP=m ++CONFIG_NETFILTER_XT_MATCH_DEVGROUP=m ++CONFIG_NETFILTER_XT_MATCH_DSCP=m ++CONFIG_NETFILTER_XT_MATCH_ECN=m ++CONFIG_NETFILTER_XT_MATCH_ESP=m ++CONFIG_NETFILTER_XT_MATCH_HASHLIMIT=m ++CONFIG_NETFILTER_XT_MATCH_HELPER=m ++CONFIG_NETFILTER_XT_MATCH_HL=m ++CONFIG_NETFILTER_XT_MATCH_IPCOMP=m ++CONFIG_NETFILTER_XT_MATCH_IPRANGE=m ++CONFIG_NETFILTER_XT_MATCH_IPVS=m ++CONFIG_NETFILTER_XT_MATCH_L2TP=m ++CONFIG_NETFILTER_XT_MATCH_LENGTH=m ++CONFIG_NETFILTER_XT_MATCH_LIMIT=m ++CONFIG_NETFILTER_XT_MATCH_MAC=m ++CONFIG_NETFILTER_XT_MATCH_MARK=m ++CONFIG_NETFILTER_XT_MATCH_MULTIPORT=m ++CONFIG_NETFILTER_XT_MATCH_NFACCT=m ++CONFIG_NETFILTER_XT_MATCH_OSF=m ++CONFIG_NETFILTER_XT_MATCH_OWNER=m ++CONFIG_NETFILTER_XT_MATCH_POLICY=m ++CONFIG_NETFILTER_XT_MATCH_PHYSDEV=m ++CONFIG_NETFILTER_XT_MATCH_PKTTYPE=m ++CONFIG_NETFILTER_XT_MATCH_QUOTA=m ++CONFIG_NETFILTER_XT_MATCH_RATEEST=m ++CONFIG_NETFILTER_XT_MATCH_REALM=m ++CONFIG_NETFILTER_XT_MATCH_RECENT=m ++CONFIG_NETFILTER_XT_MATCH_SCTP=m ++CONFIG_NETFILTER_XT_MATCH_SOCKET=m ++CONFIG_NETFILTER_XT_MATCH_STATE=m ++CONFIG_NETFILTER_XT_MATCH_STATISTIC=m ++CONFIG_NETFILTER_XT_MATCH_STRING=m ++CONFIG_NETFILTER_XT_MATCH_TCPMSS=m ++CONFIG_NETFILTER_XT_MATCH_TIME=m ++CONFIG_NETFILTER_XT_MATCH_U32=m ++# end of Core Netfilter Configuration ++ ++CONFIG_IP_SET=m ++CONFIG_IP_SET_MAX=256 ++CONFIG_IP_SET_BITMAP_IP=m ++CONFIG_IP_SET_BITMAP_IPMAC=m ++CONFIG_IP_SET_BITMAP_PORT=m ++CONFIG_IP_SET_HASH_IP=m ++CONFIG_IP_SET_HASH_IPMARK=m ++CONFIG_IP_SET_HASH_IPPORT=m ++CONFIG_IP_SET_HASH_IPPORTIP=m ++CONFIG_IP_SET_HASH_IPPORTNET=m ++CONFIG_IP_SET_HASH_IPMAC=m ++CONFIG_IP_SET_HASH_MAC=m ++CONFIG_IP_SET_HASH_NETPORTNET=m ++CONFIG_IP_SET_HASH_NET=m ++CONFIG_IP_SET_HASH_NETNET=m ++CONFIG_IP_SET_HASH_NETPORT=m ++CONFIG_IP_SET_HASH_NETIFACE=m ++CONFIG_IP_SET_LIST_SET=m ++CONFIG_IP_VS=m ++CONFIG_IP_VS_IPV6=y ++# CONFIG_IP_VS_DEBUG is not set ++CONFIG_IP_VS_TAB_BITS=12 ++ ++# ++# IPVS transport protocol load balancing support ++# ++CONFIG_IP_VS_PROTO_TCP=y ++CONFIG_IP_VS_PROTO_UDP=y ++CONFIG_IP_VS_PROTO_AH_ESP=y ++CONFIG_IP_VS_PROTO_ESP=y ++CONFIG_IP_VS_PROTO_AH=y ++CONFIG_IP_VS_PROTO_SCTP=y ++ ++# ++# IPVS scheduler ++# ++CONFIG_IP_VS_RR=m ++CONFIG_IP_VS_WRR=m ++CONFIG_IP_VS_LC=m ++CONFIG_IP_VS_WLC=m ++CONFIG_IP_VS_FO=m ++CONFIG_IP_VS_OVF=m ++CONFIG_IP_VS_LBLC=m ++CONFIG_IP_VS_LBLCR=m ++CONFIG_IP_VS_DH=m ++CONFIG_IP_VS_SH=m ++CONFIG_IP_VS_MH=m ++CONFIG_IP_VS_SED=m ++CONFIG_IP_VS_NQ=m ++# CONFIG_IP_VS_TWOS is not set ++ ++# ++# IPVS SH scheduler ++# ++CONFIG_IP_VS_SH_TAB_BITS=8 ++ ++# ++# IPVS MH scheduler ++# ++CONFIG_IP_VS_MH_TAB_INDEX=12 ++ ++# ++# IPVS application helper ++# ++CONFIG_IP_VS_FTP=m ++CONFIG_IP_VS_NFCT=y ++CONFIG_IP_VS_PE_SIP=m ++ ++# ++# IP: Netfilter Configuration ++# ++CONFIG_NF_DEFRAG_IPV4=m ++CONFIG_NF_SOCKET_IPV4=m ++CONFIG_NF_TPROXY_IPV4=m ++CONFIG_NF_TABLES_IPV4=y ++CONFIG_NFT_REJECT_IPV4=m ++CONFIG_NFT_DUP_IPV4=m ++CONFIG_NFT_FIB_IPV4=m ++CONFIG_NF_TABLES_ARP=y ++CONFIG_NF_FLOW_TABLE_IPV4=m ++CONFIG_NF_DUP_IPV4=m ++CONFIG_NF_LOG_ARP=m ++CONFIG_NF_LOG_IPV4=m ++CONFIG_NF_REJECT_IPV4=m ++CONFIG_NF_NAT_SNMP_BASIC=m ++CONFIG_NF_NAT_PPTP=m ++CONFIG_NF_NAT_H323=m ++CONFIG_IP_NF_IPTABLES=m ++CONFIG_IP_NF_MATCH_AH=m ++CONFIG_IP_NF_MATCH_ECN=m ++CONFIG_IP_NF_MATCH_RPFILTER=m ++CONFIG_IP_NF_MATCH_TTL=m ++CONFIG_IP_NF_FILTER=m ++CONFIG_IP_NF_TARGET_REJECT=m ++CONFIG_IP_NF_TARGET_SYNPROXY=m ++CONFIG_IP_NF_NAT=m ++CONFIG_IP_NF_TARGET_MASQUERADE=m ++CONFIG_IP_NF_TARGET_NETMAP=m ++CONFIG_IP_NF_TARGET_REDIRECT=m ++CONFIG_IP_NF_MANGLE=m ++CONFIG_IP_NF_TARGET_CLUSTERIP=m ++CONFIG_IP_NF_TARGET_ECN=m ++CONFIG_IP_NF_TARGET_TTL=m ++CONFIG_IP_NF_RAW=m ++CONFIG_IP_NF_ARPTABLES=m ++CONFIG_IP_NF_ARPFILTER=m ++CONFIG_IP_NF_ARP_MANGLE=m ++# end of IP: Netfilter Configuration ++ ++# ++# IPv6: Netfilter Configuration ++# ++CONFIG_NF_SOCKET_IPV6=m ++CONFIG_NF_TPROXY_IPV6=m ++CONFIG_NF_TABLES_IPV6=y ++CONFIG_NFT_REJECT_IPV6=m ++CONFIG_NFT_DUP_IPV6=m ++CONFIG_NFT_FIB_IPV6=m ++CONFIG_NF_FLOW_TABLE_IPV6=m ++CONFIG_NF_DUP_IPV6=m ++CONFIG_NF_REJECT_IPV6=m ++CONFIG_NF_LOG_IPV6=m ++CONFIG_IP6_NF_IPTABLES=m ++CONFIG_IP6_NF_MATCH_AH=m ++CONFIG_IP6_NF_MATCH_EUI64=m ++CONFIG_IP6_NF_MATCH_FRAG=m ++CONFIG_IP6_NF_MATCH_OPTS=m ++CONFIG_IP6_NF_MATCH_HL=m ++CONFIG_IP6_NF_MATCH_IPV6HEADER=m ++CONFIG_IP6_NF_MATCH_MH=m ++CONFIG_IP6_NF_MATCH_RPFILTER=m ++CONFIG_IP6_NF_MATCH_RT=m ++CONFIG_IP6_NF_MATCH_SRH=m ++CONFIG_IP6_NF_TARGET_HL=m ++CONFIG_IP6_NF_FILTER=m ++CONFIG_IP6_NF_TARGET_REJECT=m ++CONFIG_IP6_NF_TARGET_SYNPROXY=m ++CONFIG_IP6_NF_MANGLE=m ++CONFIG_IP6_NF_RAW=m ++CONFIG_IP6_NF_NAT=m ++CONFIG_IP6_NF_TARGET_MASQUERADE=m ++CONFIG_IP6_NF_TARGET_NPT=m ++# end of IPv6: Netfilter Configuration ++ ++CONFIG_NF_DEFRAG_IPV6=m ++CONFIG_NF_TABLES_BRIDGE=m ++CONFIG_NFT_BRIDGE_META=m ++CONFIG_NFT_BRIDGE_REJECT=m ++CONFIG_NF_CONNTRACK_BRIDGE=m ++CONFIG_BRIDGE_NF_EBTABLES=m ++CONFIG_BRIDGE_EBT_BROUTE=m ++CONFIG_BRIDGE_EBT_T_FILTER=m ++CONFIG_BRIDGE_EBT_T_NAT=m ++CONFIG_BRIDGE_EBT_802_3=m ++CONFIG_BRIDGE_EBT_AMONG=m ++CONFIG_BRIDGE_EBT_ARP=m ++CONFIG_BRIDGE_EBT_IP=m ++CONFIG_BRIDGE_EBT_IP6=m ++CONFIG_BRIDGE_EBT_LIMIT=m ++CONFIG_BRIDGE_EBT_MARK=m ++CONFIG_BRIDGE_EBT_PKTTYPE=m ++CONFIG_BRIDGE_EBT_STP=m ++CONFIG_BRIDGE_EBT_VLAN=m ++CONFIG_BRIDGE_EBT_ARPREPLY=m ++CONFIG_BRIDGE_EBT_DNAT=m ++CONFIG_BRIDGE_EBT_MARK_T=m ++CONFIG_BRIDGE_EBT_REDIRECT=m ++CONFIG_BRIDGE_EBT_SNAT=m ++CONFIG_BRIDGE_EBT_LOG=m ++CONFIG_BRIDGE_EBT_NFLOG=m ++CONFIG_BPFILTER=y ++CONFIG_BPFILTER_UMH=m ++# CONFIG_IP_DCCP is not set ++# CONFIG_IP_SCTP is not set ++# CONFIG_RDS is not set ++# CONFIG_TIPC is not set ++# CONFIG_ATM is not set ++CONFIG_L2TP=m ++CONFIG_L2TP_DEBUGFS=m ++CONFIG_L2TP_V3=y ++CONFIG_L2TP_IP=m ++CONFIG_L2TP_ETH=m ++CONFIG_STP=y ++CONFIG_GARP=y ++CONFIG_MRP=y ++CONFIG_BRIDGE=m ++CONFIG_BRIDGE_IGMP_SNOOPING=y ++CONFIG_BRIDGE_VLAN_FILTERING=y ++CONFIG_BRIDGE_MRP=y ++CONFIG_BRIDGE_CFM=y ++# CONFIG_NET_DSA is not set ++CONFIG_VLAN_8021Q=y ++CONFIG_VLAN_8021Q_GVRP=y ++CONFIG_VLAN_8021Q_MVRP=y ++# CONFIG_DECNET is not set ++CONFIG_LLC=y ++# CONFIG_LLC2 is not set ++# CONFIG_ATALK is not set ++# CONFIG_X25 is not set ++# CONFIG_LAPB is not set ++# CONFIG_PHONET is not set ++# CONFIG_6LOWPAN is not set ++# CONFIG_IEEE802154 is not set ++# CONFIG_NET_SCHED is not set ++# CONFIG_DCB is not set ++CONFIG_DNS_RESOLVER=m ++# CONFIG_BATMAN_ADV is not set ++# CONFIG_OPENVSWITCH is not set ++# CONFIG_VSOCKETS is not set ++CONFIG_NETLINK_DIAG=m ++# CONFIG_MPLS is not set ++# CONFIG_NET_NSH is not set ++# CONFIG_HSR is not set ++# CONFIG_NET_SWITCHDEV is not set ++CONFIG_NET_L3_MASTER_DEV=y ++# CONFIG_QRTR is not set ++# CONFIG_NET_NCSI is not set ++CONFIG_PCPU_DEV_REFCNT=y ++CONFIG_RPS=y ++CONFIG_RFS_ACCEL=y ++CONFIG_SOCK_RX_QUEUE_MAPPING=y ++CONFIG_XPS=y ++CONFIG_CGROUP_NET_PRIO=y ++CONFIG_CGROUP_NET_CLASSID=y ++CONFIG_NET_RX_BUSY_POLL=y ++CONFIG_BQL=y ++# CONFIG_BPF_STREAM_PARSER is not set ++CONFIG_NET_FLOW_LIMIT=y ++ ++# ++# Network testing ++# ++CONFIG_NET_PKTGEN=m ++CONFIG_NET_DROP_MONITOR=y ++# end of Network testing ++# end of Networking options ++ ++# CONFIG_HAMRADIO is not set ++CONFIG_CAN=m ++CONFIG_CAN_RAW=m ++CONFIG_CAN_BCM=m ++CONFIG_CAN_GW=m ++CONFIG_CAN_J1939=m ++# CONFIG_CAN_ISOTP is not set ++ ++# ++# CAN Device Drivers ++# ++CONFIG_CAN_VCAN=m ++CONFIG_CAN_VXCAN=m ++CONFIG_CAN_SLCAN=m ++CONFIG_CAN_DEV=m ++CONFIG_CAN_CALC_BITTIMING=y ++# CONFIG_CAN_FLEXCAN is not set ++CONFIG_CAN_GRCAN=m ++CONFIG_CAN_KVASER_PCIEFD=m ++CONFIG_CAN_XILINXCAN=m ++CONFIG_CAN_C_CAN=m ++CONFIG_CAN_C_CAN_PLATFORM=m ++CONFIG_CAN_C_CAN_PCI=m ++CONFIG_CAN_CC770=m ++CONFIG_CAN_CC770_ISA=m ++CONFIG_CAN_CC770_PLATFORM=m ++# CONFIG_CAN_IFI_CANFD is not set ++CONFIG_CAN_M_CAN=m ++# CONFIG_CAN_M_CAN_PCI is not set ++CONFIG_CAN_M_CAN_PLATFORM=m ++CONFIG_CAN_M_CAN_TCAN4X5X=m ++CONFIG_CAN_PEAK_PCIEFD=m ++CONFIG_CAN_SJA1000=m ++CONFIG_CAN_EMS_PCI=m ++CONFIG_CAN_F81601=m ++CONFIG_CAN_KVASER_PCI=m ++CONFIG_CAN_PEAK_PCI=m ++CONFIG_CAN_PEAK_PCIEC=y ++CONFIG_CAN_PLX_PCI=m ++CONFIG_CAN_SJA1000_ISA=m ++CONFIG_CAN_SJA1000_PLATFORM=m ++CONFIG_CAN_SOFTING=m ++ ++# ++# CAN SPI interfaces ++# ++CONFIG_CAN_HI311X=m ++CONFIG_CAN_MCP251X=m ++CONFIG_CAN_MCP251XFD=m ++# CONFIG_CAN_MCP251XFD_SANITY is not set ++# end of CAN SPI interfaces ++ ++# ++# CAN USB interfaces ++# ++CONFIG_CAN_8DEV_USB=m ++CONFIG_CAN_EMS_USB=m ++CONFIG_CAN_ESD_USB2=m ++# CONFIG_CAN_ETAS_ES58X is not set ++CONFIG_CAN_GS_USB=m ++CONFIG_CAN_KVASER_USB=m ++CONFIG_CAN_MCBA_USB=m ++CONFIG_CAN_PEAK_USB=m ++CONFIG_CAN_UCAN=m ++# end of CAN USB interfaces ++ ++# CONFIG_CAN_DEBUG_DEVICES is not set ++# end of CAN Device Drivers ++ ++CONFIG_BT=m ++CONFIG_BT_BREDR=y ++CONFIG_BT_RFCOMM=m ++CONFIG_BT_RFCOMM_TTY=y ++CONFIG_BT_BNEP=m ++CONFIG_BT_BNEP_MC_FILTER=y ++CONFIG_BT_BNEP_PROTO_FILTER=y ++CONFIG_BT_HIDP=m ++CONFIG_BT_HS=y ++CONFIG_BT_LE=y ++CONFIG_BT_LEDS=y ++# CONFIG_BT_MSFTEXT is not set ++# CONFIG_BT_AOSPEXT is not set ++# CONFIG_BT_DEBUGFS is not set ++# CONFIG_BT_SELFTEST is not set ++ ++# ++# Bluetooth device drivers ++# ++CONFIG_BT_INTEL=m ++CONFIG_BT_BCM=m ++CONFIG_BT_RTL=m ++CONFIG_BT_QCA=m ++CONFIG_BT_HCIBTUSB=m ++# CONFIG_BT_HCIBTUSB_AUTOSUSPEND is not set ++CONFIG_BT_HCIBTUSB_BCM=y ++CONFIG_BT_HCIBTUSB_MTK=y ++CONFIG_BT_HCIBTUSB_RTL=y ++CONFIG_BT_HCIBTSDIO=m ++CONFIG_BT_HCIUART=m ++CONFIG_BT_HCIUART_SERDEV=y ++CONFIG_BT_HCIUART_H4=y ++CONFIG_BT_HCIUART_NOKIA=m ++CONFIG_BT_HCIUART_BCSP=y ++CONFIG_BT_HCIUART_ATH3K=y ++CONFIG_BT_HCIUART_LL=y ++CONFIG_BT_HCIUART_3WIRE=y ++CONFIG_BT_HCIUART_INTEL=y ++CONFIG_BT_HCIUART_BCM=y ++CONFIG_BT_HCIUART_RTL=y ++CONFIG_BT_HCIUART_QCA=y ++CONFIG_BT_HCIUART_AG6XX=y ++CONFIG_BT_HCIUART_MRVL=y ++CONFIG_BT_HCIBCM203X=m ++CONFIG_BT_HCIBPA10X=m ++CONFIG_BT_HCIBFUSB=m ++CONFIG_BT_HCIVHCI=m ++CONFIG_BT_MRVL=m ++CONFIG_BT_MRVL_SDIO=m ++CONFIG_BT_ATH3K=m ++CONFIG_BT_MTKSDIO=m ++CONFIG_BT_MTKUART=m ++CONFIG_BT_HCIRSI=m ++# CONFIG_BT_VIRTIO is not set ++# end of Bluetooth device drivers ++ ++# CONFIG_AF_RXRPC is not set ++# CONFIG_AF_KCM is not set ++CONFIG_STREAM_PARSER=y ++# CONFIG_MCTP is not set ++CONFIG_FIB_RULES=y ++CONFIG_WIRELESS=y ++CONFIG_WIRELESS_EXT=y ++CONFIG_WEXT_CORE=y ++CONFIG_WEXT_PROC=y ++CONFIG_WEXT_SPY=y ++CONFIG_WEXT_PRIV=y ++CONFIG_CFG80211=m ++# CONFIG_NL80211_TESTMODE is not set ++# CONFIG_CFG80211_DEVELOPER_WARNINGS is not set ++# CONFIG_CFG80211_CERTIFICATION_ONUS is not set ++CONFIG_CFG80211_REQUIRE_SIGNED_REGDB=y ++CONFIG_CFG80211_USE_KERNEL_REGDB_KEYS=y ++# CONFIG_CFG80211_DEFAULT_PS is not set ++# CONFIG_CFG80211_DEBUGFS is not set ++CONFIG_CFG80211_CRDA_SUPPORT=y ++CONFIG_CFG80211_WEXT=y ++CONFIG_LIB80211=m ++CONFIG_LIB80211_CRYPT_WEP=m ++CONFIG_LIB80211_CRYPT_CCMP=m ++CONFIG_LIB80211_CRYPT_TKIP=m ++# CONFIG_LIB80211_DEBUG is not set ++CONFIG_MAC80211=m ++CONFIG_MAC80211_HAS_RC=y ++CONFIG_MAC80211_RC_MINSTREL=y ++CONFIG_MAC80211_RC_DEFAULT_MINSTREL=y ++CONFIG_MAC80211_RC_DEFAULT="minstrel_ht" ++CONFIG_MAC80211_MESH=y ++CONFIG_MAC80211_LEDS=y ++# CONFIG_MAC80211_DEBUGFS is not set ++# CONFIG_MAC80211_MESSAGE_TRACING is not set ++# CONFIG_MAC80211_DEBUG_MENU is not set ++CONFIG_MAC80211_STA_HASH_MAX_SIZE=0 ++CONFIG_RFKILL=m ++CONFIG_RFKILL_LEDS=y ++CONFIG_RFKILL_INPUT=y ++CONFIG_RFKILL_GPIO=m ++# CONFIG_NET_9P is not set ++# CONFIG_CAIF is not set ++# CONFIG_CEPH_LIB is not set ++CONFIG_NFC=m ++CONFIG_NFC_DIGITAL=m ++CONFIG_NFC_NCI=m ++CONFIG_NFC_NCI_SPI=m ++CONFIG_NFC_NCI_UART=m ++CONFIG_NFC_HCI=m ++CONFIG_NFC_SHDLC=y ++ ++# ++# Near Field Communication (NFC) devices ++# ++CONFIG_NFC_TRF7970A=m ++CONFIG_NFC_SIM=m ++CONFIG_NFC_PORT100=m ++# CONFIG_NFC_VIRTUAL_NCI is not set ++CONFIG_NFC_FDP=m ++CONFIG_NFC_FDP_I2C=m ++CONFIG_NFC_PN544=m ++CONFIG_NFC_PN544_I2C=m ++CONFIG_NFC_PN533=m ++CONFIG_NFC_PN533_USB=m ++CONFIG_NFC_PN533_I2C=m ++CONFIG_NFC_PN532_UART=m ++CONFIG_NFC_MICROREAD=m ++CONFIG_NFC_MICROREAD_I2C=m ++CONFIG_NFC_MRVL=m ++CONFIG_NFC_MRVL_USB=m ++CONFIG_NFC_MRVL_UART=m ++CONFIG_NFC_MRVL_I2C=m ++CONFIG_NFC_MRVL_SPI=m ++CONFIG_NFC_ST21NFCA=m ++CONFIG_NFC_ST21NFCA_I2C=m ++CONFIG_NFC_ST_NCI=m ++CONFIG_NFC_ST_NCI_I2C=m ++CONFIG_NFC_ST_NCI_SPI=m ++CONFIG_NFC_NXP_NCI=m ++CONFIG_NFC_NXP_NCI_I2C=m ++CONFIG_NFC_S3FWRN5=m ++CONFIG_NFC_S3FWRN5_I2C=m ++# CONFIG_NFC_S3FWRN82_UART is not set ++CONFIG_NFC_ST95HF=m ++# end of Near Field Communication (NFC) devices ++ ++CONFIG_PSAMPLE=m ++# CONFIG_NET_IFE is not set ++CONFIG_LWTUNNEL=y ++CONFIG_LWTUNNEL_BPF=y ++CONFIG_DST_CACHE=y ++CONFIG_GRO_CELLS=y ++CONFIG_SOCK_VALIDATE_XMIT=y ++CONFIG_NET_SELFTESTS=y ++CONFIG_NET_SOCK_MSG=y ++CONFIG_NET_DEVLINK=y ++CONFIG_PAGE_POOL=y ++CONFIG_FAILOVER=m ++CONFIG_ETHTOOL_NETLINK=y ++ ++# ++# Device Drivers ++# ++CONFIG_ARM_AMBA=y ++CONFIG_HAVE_PCI=y ++CONFIG_PCI=y ++CONFIG_PCI_DOMAINS=y ++CONFIG_PCI_DOMAINS_GENERIC=y ++CONFIG_PCI_SYSCALL=y ++CONFIG_PCIEPORTBUS=y ++# CONFIG_HOTPLUG_PCI_PCIE is not set ++CONFIG_PCIEAER=y ++# CONFIG_PCIEAER_INJECT is not set ++# CONFIG_PCIE_ECRC is not set ++CONFIG_PCIEASPM=y ++# CONFIG_PCIEASPM_DEFAULT is not set ++# CONFIG_PCIEASPM_POWERSAVE is not set ++# CONFIG_PCIEASPM_POWER_SUPERSAVE is not set ++CONFIG_PCIEASPM_PERFORMANCE=y ++CONFIG_PCIE_PME=y ++# CONFIG_PCIE_DPC is not set ++# CONFIG_PCIE_PTM is not set ++CONFIG_PCI_MSI=y ++CONFIG_PCI_MSI_IRQ_DOMAIN=y ++CONFIG_PCI_QUIRKS=y ++# CONFIG_PCI_DEBUG is not set ++# CONFIG_PCI_REALLOC_ENABLE_AUTO is not set ++# CONFIG_PCI_STUB is not set ++# CONFIG_PCI_PF_STUB is not set ++CONFIG_PCI_ATS=y ++CONFIG_PCI_IOV=y ++# CONFIG_PCI_PRI is not set ++# CONFIG_PCI_PASID is not set ++CONFIG_PCI_LABEL=y ++# CONFIG_PCIE_BUS_TUNE_OFF is not set ++CONFIG_PCIE_BUS_DEFAULT=y ++# CONFIG_PCIE_BUS_SAFE is not set ++# CONFIG_PCIE_BUS_PERFORMANCE is not set ++# CONFIG_PCIE_BUS_PEER2PEER is not set ++CONFIG_HOTPLUG_PCI=y ++# CONFIG_HOTPLUG_PCI_CPCI is not set ++# CONFIG_HOTPLUG_PCI_SHPC is not set ++ ++# ++# PCI controller drivers ++# ++# CONFIG_PCI_FTPCI100 is not set ++# CONFIG_PCI_HOST_GENERIC is not set ++# CONFIG_PCIE_XILINX is not set ++# CONFIG_PCI_XGENE is not set ++# CONFIG_PCIE_ALTERA is not set ++# CONFIG_PCI_HOST_THUNDER_PEM is not set ++# CONFIG_PCI_HOST_THUNDER_ECAM is not set ++CONFIG_PCIE_ROCKCHIP=y ++CONFIG_PCIE_ROCKCHIP_HOST=y ++CONFIG_PCIE_ROCKCHIP_EP=y ++# CONFIG_PCIE_MICROCHIP_HOST is not set ++ ++# ++# DesignWare PCI Core Support ++# ++CONFIG_PCIE_DW=y ++CONFIG_PCIE_DW_HOST=y ++CONFIG_PCIE_DW_PLAT=y ++CONFIG_PCIE_DW_PLAT_HOST=y ++# CONFIG_PCIE_DW_PLAT_EP is not set ++# CONFIG_PCI_HISI is not set ++CONFIG_PCIE_ROCKCHIP_DW_HOST=y ++# CONFIG_PCIE_KIRIN is not set ++# CONFIG_PCI_MESON is not set ++# CONFIG_PCIE_AL is not set ++# end of DesignWare PCI Core Support ++ ++# ++# Mobiveil PCIe Core Support ++# ++# end of Mobiveil PCIe Core Support ++ ++# ++# Cadence PCIe controllers support ++# ++# CONFIG_PCIE_CADENCE_PLAT_HOST is not set ++# CONFIG_PCIE_CADENCE_PLAT_EP is not set ++# CONFIG_PCI_J721E_HOST is not set ++# CONFIG_PCI_J721E_EP is not set ++# end of Cadence PCIe controllers support ++# end of PCI controller drivers ++ ++# ++# PCI Endpoint ++# ++CONFIG_PCI_ENDPOINT=y ++CONFIG_PCI_ENDPOINT_CONFIGFS=y ++# CONFIG_PCI_EPF_TEST is not set ++# CONFIG_PCI_EPF_NTB is not set ++# end of PCI Endpoint ++ ++# ++# PCI switch controller drivers ++# ++# CONFIG_PCI_SW_SWITCHTEC is not set ++# end of PCI switch controller drivers ++ ++# CONFIG_CXL_BUS is not set ++# CONFIG_PCCARD is not set ++# CONFIG_RAPIDIO is not set ++ ++# ++# Generic Driver Options ++# ++CONFIG_UEVENT_HELPER=y ++CONFIG_UEVENT_HELPER_PATH="" ++CONFIG_DEVTMPFS=y ++CONFIG_DEVTMPFS_MOUNT=y ++CONFIG_STANDALONE=y ++CONFIG_PREVENT_FIRMWARE_BUILD=y ++ ++# ++# Firmware loader ++# ++CONFIG_FW_LOADER=y ++CONFIG_FW_LOADER_PAGED_BUF=y ++CONFIG_EXTRA_FIRMWARE="" ++CONFIG_FW_LOADER_USER_HELPER=y ++# CONFIG_FW_LOADER_USER_HELPER_FALLBACK is not set ++CONFIG_FW_LOADER_COMPRESS=y ++CONFIG_FW_CACHE=y ++# end of Firmware loader ++ ++CONFIG_WANT_DEV_COREDUMP=y ++CONFIG_ALLOW_DEV_COREDUMP=y ++CONFIG_DEV_COREDUMP=y ++# CONFIG_DEBUG_DRIVER is not set ++# CONFIG_DEBUG_DEVRES is not set ++# CONFIG_DEBUG_TEST_DRIVER_REMOVE is not set ++# CONFIG_TEST_ASYNC_DRIVER_PROBE is not set ++CONFIG_GENERIC_CPU_AUTOPROBE=y ++CONFIG_GENERIC_CPU_VULNERABILITIES=y ++CONFIG_SOC_BUS=y ++CONFIG_REGMAP=y ++CONFIG_REGMAP_I2C=y ++CONFIG_REGMAP_SPI=y ++CONFIG_REGMAP_W1=m ++CONFIG_REGMAP_MMIO=y ++CONFIG_REGMAP_IRQ=y ++CONFIG_REGMAP_SCCB=m ++CONFIG_DMA_SHARED_BUFFER=y ++# CONFIG_DMA_FENCE_TRACE is not set ++CONFIG_GENERIC_ARCH_TOPOLOGY=y ++CONFIG_GENERIC_ARCH_NUMA=y ++# end of Generic Driver Options ++ ++# ++# Bus devices ++# ++CONFIG_ARM_CCI=y ++CONFIG_BRCMSTB_GISB_ARB=y ++# CONFIG_MOXTET is not set ++CONFIG_VEXPRESS_CONFIG=y ++CONFIG_MHI_BUS=m ++# CONFIG_MHI_BUS_DEBUG is not set ++# CONFIG_MHI_BUS_PCI_GENERIC is not set ++# end of Bus devices ++ ++CONFIG_CONNECTOR=m ++ ++# ++# Firmware Drivers ++# ++ ++# ++# ARM System Control and Management Interface Protocol ++# ++# CONFIG_ARM_SCMI_PROTOCOL is not set ++# end of ARM System Control and Management Interface Protocol ++ ++CONFIG_ARM_SCPI_PROTOCOL=y ++CONFIG_ARM_SCPI_POWER_DOMAIN=y ++# CONFIG_ARM_SDE_INTERFACE is not set ++# CONFIG_FIRMWARE_MEMMAP is not set ++CONFIG_DMIID=y ++# CONFIG_DMI_SYSFS is not set ++# CONFIG_FW_CFG_SYSFS is not set ++CONFIG_SYSFB=y ++# CONFIG_SYSFB_SIMPLEFB is not set ++# CONFIG_ARM_FFA_TRANSPORT is not set ++# CONFIG_GOOGLE_FIRMWARE is not set ++ ++# ++# EFI (Extensible Firmware Interface) Support ++# ++CONFIG_EFI_ESRT=y ++CONFIG_EFI_VARS_PSTORE=y ++# CONFIG_EFI_VARS_PSTORE_DEFAULT_DISABLE is not set ++CONFIG_EFI_PARAMS_FROM_FDT=y ++CONFIG_EFI_RUNTIME_WRAPPERS=y ++CONFIG_EFI_GENERIC_STUB=y ++CONFIG_EFI_ARMSTUB_DTB_LOADER=y ++CONFIG_EFI_GENERIC_STUB_INITRD_CMDLINE_LOADER=y ++CONFIG_EFI_BOOTLOADER_CONTROL=m ++CONFIG_EFI_CAPSULE_LOADER=y ++# CONFIG_EFI_TEST is not set ++# CONFIG_RESET_ATTACK_MITIGATION is not set ++# CONFIG_EFI_DISABLE_PCI_DMA is not set ++# end of EFI (Extensible Firmware Interface) Support ++ ++CONFIG_EFI_EARLYCON=y ++CONFIG_ARM_PSCI_FW=y ++# CONFIG_ARM_PSCI_CHECKER is not set ++CONFIG_HAVE_ARM_SMCCC=y ++CONFIG_HAVE_ARM_SMCCC_DISCOVERY=y ++CONFIG_ARM_SMCCC_SOC_ID=y ++ ++# ++# Tegra firmware driver ++# ++# end of Tegra firmware driver ++# end of Firmware Drivers ++ ++CONFIG_GNSS=m ++CONFIG_GNSS_SERIAL=m ++CONFIG_GNSS_MTK_SERIAL=m ++CONFIG_GNSS_SIRF_SERIAL=m ++CONFIG_GNSS_UBX_SERIAL=m ++CONFIG_MTD=y ++# CONFIG_MTD_TESTS is not set ++ ++# ++# Partition parsers ++# ++# CONFIG_MTD_AR7_PARTS is not set ++# CONFIG_MTD_CMDLINE_PARTS is not set ++CONFIG_MTD_OF_PARTS=y ++# CONFIG_MTD_AFS_PARTS is not set ++# CONFIG_MTD_REDBOOT_PARTS is not set ++# end of Partition parsers ++ ++# ++# User Modules And Translation Layers ++# ++CONFIG_MTD_BLKDEVS=y ++CONFIG_MTD_BLOCK=y ++ ++# ++# Note that in some cases UBI block is preferred. See MTD_UBI_BLOCK. ++# ++# CONFIG_FTL is not set ++# CONFIG_NFTL is not set ++# CONFIG_INFTL is not set ++# CONFIG_RFD_FTL is not set ++# CONFIG_SSFDC is not set ++# CONFIG_SM_FTL is not set ++# CONFIG_MTD_OOPS is not set ++# CONFIG_MTD_SWAP is not set ++# CONFIG_MTD_PARTITIONED_MASTER is not set ++ ++# ++# RAM/ROM/Flash chip drivers ++# ++CONFIG_MTD_CFI=m ++# CONFIG_MTD_JEDECPROBE is not set ++CONFIG_MTD_GEN_PROBE=m ++# CONFIG_MTD_CFI_ADV_OPTIONS is not set ++CONFIG_MTD_MAP_BANK_WIDTH_1=y ++CONFIG_MTD_MAP_BANK_WIDTH_2=y ++CONFIG_MTD_MAP_BANK_WIDTH_4=y ++CONFIG_MTD_CFI_I1=y ++CONFIG_MTD_CFI_I2=y ++# CONFIG_MTD_CFI_INTELEXT is not set ++CONFIG_MTD_CFI_AMDSTD=m ++# CONFIG_MTD_CFI_STAA is not set ++CONFIG_MTD_CFI_UTIL=m ++# CONFIG_MTD_RAM is not set ++# CONFIG_MTD_ROM is not set ++# CONFIG_MTD_ABSENT is not set ++# end of RAM/ROM/Flash chip drivers ++ ++# ++# Mapping drivers for chip access ++# ++CONFIG_MTD_COMPLEX_MAPPINGS=y ++# CONFIG_MTD_PHYSMAP is not set ++# CONFIG_MTD_PCI is not set ++# CONFIG_MTD_INTEL_VR_NOR is not set ++# CONFIG_MTD_PLATRAM is not set ++# end of Mapping drivers for chip access ++ ++# ++# Self-contained MTD device drivers ++# ++# CONFIG_MTD_PMC551 is not set ++# CONFIG_MTD_DATAFLASH is not set ++# CONFIG_MTD_MCHP23K256 is not set ++# CONFIG_MTD_MCHP48L640 is not set ++# CONFIG_MTD_SST25L is not set ++# CONFIG_MTD_SLRAM is not set ++# CONFIG_MTD_PHRAM is not set ++# CONFIG_MTD_MTDRAM is not set ++# CONFIG_MTD_BLOCK2MTD is not set ++ ++# ++# Disk-On-Chip Device Drivers ++# ++# CONFIG_MTD_DOCG3 is not set ++# end of Self-contained MTD device drivers ++ ++# ++# NAND ++# ++# CONFIG_MTD_ONENAND is not set ++# CONFIG_MTD_RAW_NAND is not set ++# CONFIG_MTD_SPI_NAND is not set ++ ++# ++# ECC engine support ++# ++# CONFIG_MTD_NAND_ECC_SW_HAMMING is not set ++# CONFIG_MTD_NAND_ECC_SW_BCH is not set ++# end of ECC engine support ++# end of NAND ++ ++# ++# LPDDR & LPDDR2 PCM memory drivers ++# ++# CONFIG_MTD_LPDDR is not set ++# end of LPDDR & LPDDR2 PCM memory drivers ++ ++CONFIG_MTD_SPI_NOR=y ++CONFIG_MTD_SPI_NOR_USE_4K_SECTORS=y ++# CONFIG_MTD_SPI_NOR_SWP_DISABLE is not set ++CONFIG_MTD_SPI_NOR_SWP_DISABLE_ON_VOLATILE=y ++# CONFIG_MTD_SPI_NOR_SWP_KEEP is not set ++# CONFIG_MTD_UBI is not set ++CONFIG_MTD_HYPERBUS=m ++CONFIG_HBMC_AM654=m ++CONFIG_DTC=y ++CONFIG_OF=y ++# CONFIG_OF_UNITTEST is not set ++CONFIG_OF_FLATTREE=y ++CONFIG_OF_EARLY_FLATTREE=y ++CONFIG_OF_KOBJ=y ++CONFIG_OF_DYNAMIC=y ++CONFIG_OF_ADDRESS=y ++CONFIG_OF_IRQ=y ++CONFIG_OF_NET=y ++CONFIG_OF_RESERVED_MEM=y ++CONFIG_OF_RESOLVE=y ++CONFIG_OF_OVERLAY=y ++CONFIG_OF_NUMA=y ++CONFIG_OF_CONFIGFS=y ++# CONFIG_PARPORT is not set ++CONFIG_BLK_DEV=y ++# CONFIG_BLK_DEV_NULL_BLK is not set ++CONFIG_CDROM=m ++# CONFIG_BLK_DEV_PCIESSD_MTIP32XX is not set ++CONFIG_ZRAM=m ++CONFIG_ZRAM_DEF_COMP_LZORLE=y ++# CONFIG_ZRAM_DEF_COMP_ZSTD is not set ++# CONFIG_ZRAM_DEF_COMP_LZ4 is not set ++# CONFIG_ZRAM_DEF_COMP_LZO is not set ++# CONFIG_ZRAM_DEF_COMP_LZ4HC is not set ++# CONFIG_ZRAM_DEF_COMP_842 is not set ++CONFIG_ZRAM_DEF_COMP="lzo-rle" ++CONFIG_ZRAM_WRITEBACK=y ++# CONFIG_ZRAM_MEMORY_TRACKING is not set ++CONFIG_BLK_DEV_LOOP=y ++CONFIG_BLK_DEV_LOOP_MIN_COUNT=8 ++# CONFIG_BLK_DEV_CRYPTOLOOP is not set ++# CONFIG_BLK_DEV_DRBD is not set ++# CONFIG_BLK_DEV_NBD is not set ++# CONFIG_BLK_DEV_SX8 is not set ++CONFIG_BLK_DEV_RAM=y ++CONFIG_BLK_DEV_RAM_COUNT=8 ++CONFIG_BLK_DEV_RAM_SIZE=4096 ++# CONFIG_CDROM_PKTCDVD is not set ++# CONFIG_ATA_OVER_ETH is not set ++# CONFIG_VIRTIO_BLK is not set ++# CONFIG_BLK_DEV_RBD is not set ++# CONFIG_BLK_DEV_RSXX is not set ++ ++# ++# NVME Support ++# ++CONFIG_NVME_CORE=y ++CONFIG_BLK_DEV_NVME=y ++CONFIG_NVME_MULTIPATH=y ++# CONFIG_NVME_HWMON is not set ++CONFIG_NVME_FABRICS=m ++CONFIG_NVME_FC=m ++# CONFIG_NVME_TCP is not set ++CONFIG_NVME_TARGET=m ++# CONFIG_NVME_TARGET_PASSTHRU is not set ++CONFIG_NVME_TARGET_LOOP=m ++CONFIG_NVME_TARGET_FC=m ++# CONFIG_NVME_TARGET_FCLOOP is not set ++# CONFIG_NVME_TARGET_TCP is not set ++# end of NVME Support ++ ++# ++# Misc devices ++# ++# CONFIG_AD525X_DPOT is not set ++# CONFIG_DUMMY_IRQ is not set ++# CONFIG_PHANTOM is not set ++CONFIG_TIFM_CORE=m ++CONFIG_TIFM_7XX1=m ++# CONFIG_ICS932S401 is not set ++# CONFIG_ENCLOSURE_SERVICES is not set ++# CONFIG_HI6421V600_IRQ is not set ++# CONFIG_HP_ILO is not set ++# CONFIG_APDS9802ALS is not set ++# CONFIG_ISL29003 is not set ++# CONFIG_ISL29020 is not set ++# CONFIG_SENSORS_TSL2550 is not set ++# CONFIG_SENSORS_BH1770 is not set ++# CONFIG_SENSORS_APDS990X is not set ++# CONFIG_HMC6352 is not set ++# CONFIG_DS1682 is not set ++# CONFIG_LATTICE_ECP3_CONFIG is not set ++CONFIG_SRAM=y ++# CONFIG_DW_XDATA_PCIE is not set ++# CONFIG_PCI_ENDPOINT_TEST is not set ++CONFIG_XILINX_SDFEC=m ++CONFIG_MISC_RTSX=m ++# CONFIG_HISI_HIKEY_USB is not set ++CONFIG_TP_BMC=y ++# CONFIG_C2PORT is not set ++ ++# ++# EEPROM support ++# ++CONFIG_EEPROM_AT24=m ++CONFIG_EEPROM_AT25=m ++CONFIG_EEPROM_LEGACY=m ++# CONFIG_EEPROM_MAX6875 is not set ++CONFIG_EEPROM_93CX6=m ++# CONFIG_EEPROM_93XX46 is not set ++# CONFIG_EEPROM_IDT_89HPESX is not set ++CONFIG_EEPROM_EE1004=m ++# end of EEPROM support ++ ++CONFIG_CB710_CORE=m ++# CONFIG_CB710_DEBUG is not set ++CONFIG_CB710_DEBUG_ASSUMPTIONS=y ++ ++# ++# Texas Instruments shared transport line discipline ++# ++# CONFIG_TI_ST is not set ++# end of Texas Instruments shared transport line discipline ++ ++# CONFIG_SENSORS_LIS3_SPI is not set ++# CONFIG_SENSORS_LIS3_I2C is not set ++# CONFIG_ALTERA_STAPL is not set ++CONFIG_GENWQE=m ++CONFIG_GENWQE_PLATFORM_ERROR_RECOVERY=0 ++# CONFIG_ECHO is not set ++# CONFIG_BCM_VK is not set ++CONFIG_MISC_ALCOR_PCI=m ++CONFIG_MISC_RTSX_PCI=m ++CONFIG_MISC_RTSX_USB=m ++# CONFIG_HABANA_AI is not set ++# CONFIG_UACCE is not set ++# CONFIG_PVPANIC is not set ++# end of Misc devices ++ ++# ++# SCSI device support ++# ++CONFIG_SCSI_MOD=y ++# CONFIG_RAID_ATTRS is not set ++CONFIG_SCSI_COMMON=y ++CONFIG_SCSI=y ++CONFIG_SCSI_DMA=y ++# CONFIG_SCSI_PROC_FS is not set ++ ++# ++# SCSI support type (disk, tape, CD-ROM) ++# ++CONFIG_BLK_DEV_SD=y ++# CONFIG_CHR_DEV_ST is not set ++CONFIG_BLK_DEV_SR=m ++CONFIG_CHR_DEV_SG=m ++CONFIG_BLK_DEV_BSG=y ++# CONFIG_CHR_DEV_SCH is not set ++# CONFIG_SCSI_CONSTANTS is not set ++# CONFIG_SCSI_LOGGING is not set ++# CONFIG_SCSI_SCAN_ASYNC is not set ++ ++# ++# SCSI Transports ++# ++# CONFIG_SCSI_SPI_ATTRS is not set ++# CONFIG_SCSI_FC_ATTRS is not set ++CONFIG_SCSI_ISCSI_ATTRS=m ++CONFIG_SCSI_SAS_ATTRS=y ++CONFIG_SCSI_SAS_LIBSAS=y ++CONFIG_SCSI_SAS_ATA=y ++CONFIG_SCSI_SAS_HOST_SMP=y ++# CONFIG_SCSI_SRP_ATTRS is not set ++# end of SCSI Transports ++ ++CONFIG_SCSI_LOWLEVEL=y ++CONFIG_ISCSI_TCP=m ++# CONFIG_ISCSI_BOOT_SYSFS is not set ++# CONFIG_SCSI_CXGB3_ISCSI is not set ++# CONFIG_SCSI_CXGB4_ISCSI is not set ++# CONFIG_SCSI_BNX2_ISCSI is not set ++# CONFIG_BE2ISCSI is not set ++# CONFIG_BLK_DEV_3W_XXXX_RAID is not set ++# CONFIG_SCSI_HPSA is not set ++# CONFIG_SCSI_3W_9XXX is not set ++# CONFIG_SCSI_3W_SAS is not set ++# CONFIG_SCSI_ACARD is not set ++# CONFIG_SCSI_AACRAID is not set ++# CONFIG_SCSI_AIC7XXX is not set ++# CONFIG_SCSI_AIC79XX is not set ++# CONFIG_SCSI_AIC94XX is not set ++# CONFIG_SCSI_HISI_SAS is not set ++# CONFIG_SCSI_MVSAS is not set ++# CONFIG_SCSI_MVUMI is not set ++# CONFIG_SCSI_ADVANSYS is not set ++# CONFIG_SCSI_ARCMSR is not set ++# CONFIG_SCSI_ESAS2R is not set ++# CONFIG_MEGARAID_NEWGEN is not set ++# CONFIG_MEGARAID_LEGACY is not set ++# CONFIG_MEGARAID_SAS is not set ++# CONFIG_SCSI_MPT3SAS is not set ++# CONFIG_SCSI_MPT2SAS is not set ++# CONFIG_SCSI_MPI3MR is not set ++# CONFIG_SCSI_SMARTPQI is not set ++# CONFIG_SCSI_UFSHCD is not set ++# CONFIG_SCSI_HPTIOP is not set ++# CONFIG_SCSI_MYRB is not set ++# CONFIG_SCSI_MYRS is not set ++# CONFIG_SCSI_SNIC is not set ++# CONFIG_SCSI_DMX3191D is not set ++# CONFIG_SCSI_FDOMAIN_PCI is not set ++# CONFIG_SCSI_IPS is not set ++# CONFIG_SCSI_INITIO is not set ++# CONFIG_SCSI_INIA100 is not set ++# CONFIG_SCSI_STEX is not set ++# CONFIG_SCSI_SYM53C8XX_2 is not set ++# CONFIG_SCSI_IPR is not set ++# CONFIG_SCSI_QLOGIC_1280 is not set ++# CONFIG_SCSI_QLA_ISCSI is not set ++# CONFIG_SCSI_DC395x is not set ++# CONFIG_SCSI_AM53C974 is not set ++# CONFIG_SCSI_WD719X is not set ++# CONFIG_SCSI_DEBUG is not set ++# CONFIG_SCSI_PMCRAID is not set ++# CONFIG_SCSI_PM8001 is not set ++# CONFIG_SCSI_VIRTIO is not set ++# CONFIG_SCSI_DH is not set ++# end of SCSI device support ++ ++CONFIG_HAVE_PATA_PLATFORM=y ++CONFIG_ATA=y ++CONFIG_SATA_HOST=y ++CONFIG_ATA_VERBOSE_ERROR=y ++CONFIG_ATA_FORCE=y ++CONFIG_SATA_PMP=y ++ ++# ++# Controllers with non-SFF native interface ++# ++CONFIG_SATA_AHCI=y ++CONFIG_SATA_MOBILE_LPM_POLICY=0 ++CONFIG_SATA_AHCI_PLATFORM=y ++CONFIG_AHCI_CEVA=y ++CONFIG_AHCI_XGENE=y ++CONFIG_AHCI_QORIQ=y ++# CONFIG_SATA_INIC162X is not set ++# CONFIG_SATA_ACARD_AHCI is not set ++CONFIG_SATA_SIL24=y ++CONFIG_ATA_SFF=y ++ ++# ++# SFF controllers with custom DMA interface ++# ++# CONFIG_PDC_ADMA is not set ++# CONFIG_SATA_QSTOR is not set ++# CONFIG_SATA_SX4 is not set ++CONFIG_ATA_BMDMA=y ++ ++# ++# SATA SFF controllers with BMDMA ++# ++# CONFIG_ATA_PIIX is not set ++# CONFIG_SATA_DWC is not set ++# CONFIG_SATA_MV is not set ++# CONFIG_SATA_NV is not set ++# CONFIG_SATA_PROMISE is not set ++# CONFIG_SATA_SIL is not set ++# CONFIG_SATA_SIS is not set ++# CONFIG_SATA_SVW is not set ++# CONFIG_SATA_ULI is not set ++# CONFIG_SATA_VIA is not set ++# CONFIG_SATA_VITESSE is not set ++ ++# ++# PATA SFF controllers with BMDMA ++# ++# CONFIG_PATA_ALI is not set ++# CONFIG_PATA_AMD is not set ++# CONFIG_PATA_ARTOP is not set ++# CONFIG_PATA_ATIIXP is not set ++# CONFIG_PATA_ATP867X is not set ++# CONFIG_PATA_CMD64X is not set ++# CONFIG_PATA_CYPRESS is not set ++# CONFIG_PATA_EFAR is not set ++# CONFIG_PATA_HPT366 is not set ++# CONFIG_PATA_HPT37X is not set ++# CONFIG_PATA_HPT3X2N is not set ++# CONFIG_PATA_HPT3X3 is not set ++# CONFIG_PATA_IT8213 is not set ++# CONFIG_PATA_IT821X is not set ++# CONFIG_PATA_JMICRON is not set ++# CONFIG_PATA_MARVELL is not set ++# CONFIG_PATA_NETCELL is not set ++# CONFIG_PATA_NINJA32 is not set ++# CONFIG_PATA_NS87415 is not set ++# CONFIG_PATA_OLDPIIX is not set ++# CONFIG_PATA_OPTIDMA is not set ++# CONFIG_PATA_PDC2027X is not set ++# CONFIG_PATA_PDC_OLD is not set ++# CONFIG_PATA_RADISYS is not set ++# CONFIG_PATA_RDC is not set ++# CONFIG_PATA_SCH is not set ++# CONFIG_PATA_SERVERWORKS is not set ++# CONFIG_PATA_SIL680 is not set ++# CONFIG_PATA_SIS is not set ++# CONFIG_PATA_TOSHIBA is not set ++# CONFIG_PATA_TRIFLEX is not set ++# CONFIG_PATA_VIA is not set ++# CONFIG_PATA_WINBOND is not set ++ ++# ++# PIO-only SFF controllers ++# ++# CONFIG_PATA_CMD640_PCI is not set ++# CONFIG_PATA_MPIIX is not set ++# CONFIG_PATA_NS87410 is not set ++# CONFIG_PATA_OPTI is not set ++CONFIG_PATA_PLATFORM=y ++CONFIG_PATA_OF_PLATFORM=y ++# CONFIG_PATA_RZ1000 is not set ++ ++# ++# Generic fallback / legacy drivers ++# ++# CONFIG_ATA_GENERIC is not set ++# CONFIG_PATA_LEGACY is not set ++CONFIG_MD=y ++CONFIG_BLK_DEV_MD=m ++CONFIG_MD_LINEAR=m ++CONFIG_MD_RAID0=m ++CONFIG_MD_RAID1=m ++CONFIG_MD_RAID10=m ++CONFIG_MD_RAID456=m ++CONFIG_MD_MULTIPATH=m ++CONFIG_MD_FAULTY=m ++CONFIG_BCACHE=y ++# CONFIG_BCACHE_DEBUG is not set ++# CONFIG_BCACHE_CLOSURES_DEBUG is not set ++# CONFIG_BCACHE_ASYNC_REGISTRATION is not set ++CONFIG_BLK_DEV_DM_BUILTIN=y ++CONFIG_BLK_DEV_DM=m ++# CONFIG_DM_DEBUG is not set ++CONFIG_DM_BUFIO=m ++# CONFIG_DM_DEBUG_BLOCK_MANAGER_LOCKING is not set ++CONFIG_DM_BIO_PRISON=m ++CONFIG_DM_PERSISTENT_DATA=m ++CONFIG_DM_UNSTRIPED=m ++CONFIG_DM_CRYPT=m ++CONFIG_DM_SNAPSHOT=m ++CONFIG_DM_THIN_PROVISIONING=m ++CONFIG_DM_CACHE=m ++CONFIG_DM_CACHE_SMQ=m ++CONFIG_DM_WRITECACHE=m ++# CONFIG_DM_EBS is not set ++CONFIG_DM_ERA=m ++CONFIG_DM_CLONE=m ++CONFIG_DM_MIRROR=m ++CONFIG_DM_LOG_USERSPACE=m ++CONFIG_DM_RAID=m ++CONFIG_DM_ZERO=m ++CONFIG_DM_MULTIPATH=m ++CONFIG_DM_MULTIPATH_QL=m ++CONFIG_DM_MULTIPATH_ST=m ++# CONFIG_DM_MULTIPATH_HST is not set ++# CONFIG_DM_MULTIPATH_IOA is not set ++CONFIG_DM_DELAY=m ++CONFIG_DM_DUST=m ++CONFIG_DM_UEVENT=y ++CONFIG_DM_FLAKEY=m ++CONFIG_DM_VERITY=m ++# CONFIG_DM_VERITY_VERIFY_ROOTHASH_SIG is not set ++CONFIG_DM_VERITY_FEC=y ++CONFIG_DM_SWITCH=m ++CONFIG_DM_LOG_WRITES=m ++CONFIG_DM_INTEGRITY=m ++CONFIG_DM_ZONED=m ++CONFIG_TARGET_CORE=m ++CONFIG_TCM_IBLOCK=m ++CONFIG_TCM_FILEIO=m ++CONFIG_TCM_PSCSI=m ++CONFIG_TCM_USER2=m ++CONFIG_LOOPBACK_TARGET=m ++CONFIG_ISCSI_TARGET=m ++# CONFIG_FUSION is not set ++ ++# ++# IEEE 1394 (FireWire) support ++# ++# CONFIG_FIREWIRE is not set ++# CONFIG_FIREWIRE_NOSY is not set ++# end of IEEE 1394 (FireWire) support ++ ++CONFIG_NETDEVICES=y ++CONFIG_MII=y ++CONFIG_NET_CORE=y ++CONFIG_BONDING=m ++CONFIG_DUMMY=m ++CONFIG_WIREGUARD=m ++# CONFIG_WIREGUARD_DEBUG is not set ++# CONFIG_EQUALIZER is not set ++# CONFIG_NET_FC is not set ++CONFIG_IFB=m ++CONFIG_NET_TEAM=m ++CONFIG_NET_TEAM_MODE_BROADCAST=m ++CONFIG_NET_TEAM_MODE_ROUNDROBIN=m ++CONFIG_NET_TEAM_MODE_RANDOM=m ++CONFIG_NET_TEAM_MODE_ACTIVEBACKUP=m ++CONFIG_NET_TEAM_MODE_LOADBALANCE=m ++CONFIG_MACVLAN=m ++CONFIG_MACVTAP=m ++CONFIG_IPVLAN_L3S=y ++CONFIG_IPVLAN=m ++CONFIG_IPVTAP=m ++# CONFIG_VXLAN is not set ++# CONFIG_GENEVE is not set ++# CONFIG_BAREUDP is not set ++# CONFIG_GTP is not set ++CONFIG_MACSEC=m ++CONFIG_NETCONSOLE=m ++CONFIG_NETCONSOLE_DYNAMIC=y ++CONFIG_NETPOLL=y ++CONFIG_NET_POLL_CONTROLLER=y ++CONFIG_TUN=m ++CONFIG_TAP=m ++CONFIG_TUN_VNET_CROSS_LE=y ++CONFIG_VETH=m ++# CONFIG_VIRTIO_NET is not set ++CONFIG_NLMON=m ++CONFIG_NET_VRF=m ++# CONFIG_MHI_NET is not set ++# CONFIG_ARCNET is not set ++CONFIG_ETHERNET=y ++CONFIG_MDIO=m ++# CONFIG_NET_VENDOR_3COM is not set ++# CONFIG_NET_VENDOR_ADAPTEC is not set ++# CONFIG_NET_VENDOR_AGERE is not set ++# CONFIG_NET_VENDOR_ALACRITECH is not set ++# CONFIG_NET_VENDOR_ALTEON is not set ++# CONFIG_ALTERA_TSE is not set ++# CONFIG_NET_VENDOR_AMAZON is not set ++CONFIG_NET_VENDOR_AMD=y ++# CONFIG_AMD8111_ETH is not set ++# CONFIG_PCNET32 is not set ++CONFIG_AMD_XGBE=m ++CONFIG_NET_VENDOR_AQUANTIA=y ++CONFIG_AQTION=m ++CONFIG_NET_VENDOR_ARC=y ++# CONFIG_EMAC_ROCKCHIP is not set ++CONFIG_NET_VENDOR_ATHEROS=y ++CONFIG_ATL2=m ++CONFIG_ATL1=m ++CONFIG_ATL1E=m ++CONFIG_ATL1C=m ++CONFIG_ALX=m ++CONFIG_NET_VENDOR_BROADCOM=y ++CONFIG_B44=m ++CONFIG_B44_PCI_AUTOSELECT=y ++CONFIG_B44_PCICORE_AUTOSELECT=y ++CONFIG_B44_PCI=y ++CONFIG_BCMGENET=m ++CONFIG_BNX2=m ++CONFIG_CNIC=m ++CONFIG_TIGON3=m ++CONFIG_TIGON3_HWMON=y ++CONFIG_BNX2X=m ++CONFIG_BNX2X_SRIOV=y ++CONFIG_SYSTEMPORT=m ++CONFIG_BNXT=m ++CONFIG_BNXT_SRIOV=y ++CONFIG_BNXT_FLOWER_OFFLOAD=y ++CONFIG_BNXT_HWMON=y ++CONFIG_NET_VENDOR_BROCADE=y ++CONFIG_BNA=m ++CONFIG_NET_VENDOR_CADENCE=y ++CONFIG_MACB=m ++CONFIG_MACB_USE_HWSTAMP=y ++CONFIG_MACB_PCI=m ++CONFIG_NET_VENDOR_CAVIUM=y ++CONFIG_THUNDER_NIC_PF=m ++# CONFIG_THUNDER_NIC_VF is not set ++CONFIG_THUNDER_NIC_BGX=m ++CONFIG_THUNDER_NIC_RGX=m ++CONFIG_CAVIUM_PTP=m ++# CONFIG_LIQUIDIO is not set ++# CONFIG_LIQUIDIO_VF is not set ++# CONFIG_NET_VENDOR_CHELSIO is not set ++# CONFIG_NET_VENDOR_CISCO is not set ++# CONFIG_NET_VENDOR_CORTINA is not set ++# CONFIG_DNET is not set ++# CONFIG_NET_VENDOR_DEC is not set ++CONFIG_NET_VENDOR_DLINK=y ++CONFIG_DL2K=m ++# CONFIG_SUNDANCE is not set ++# CONFIG_NET_VENDOR_EMULEX is not set ++# CONFIG_NET_VENDOR_EZCHIP is not set ++# CONFIG_NET_VENDOR_GOOGLE is not set ++CONFIG_NET_VENDOR_HISILICON=y ++CONFIG_HIX5HD2_GMAC=m ++# CONFIG_HISI_FEMAC is not set ++# CONFIG_HIP04_ETH is not set ++CONFIG_HNS_MDIO=m ++CONFIG_HNS=m ++CONFIG_HNS_DSAF=m ++CONFIG_HNS_ENET=m ++# CONFIG_HNS3 is not set ++# CONFIG_NET_VENDOR_HUAWEI is not set ++# CONFIG_NET_VENDOR_I825XX is not set ++CONFIG_NET_VENDOR_INTEL=y ++# CONFIG_E100 is not set ++# CONFIG_E1000 is not set ++CONFIG_E1000E=m ++CONFIG_IGB=m ++CONFIG_IGB_HWMON=y ++CONFIG_IGBVF=m ++# CONFIG_IXGB is not set ++# CONFIG_IXGBE is not set ++# CONFIG_IXGBEVF is not set ++# CONFIG_I40E is not set ++# CONFIG_I40EVF is not set ++# CONFIG_ICE is not set ++# CONFIG_FM10K is not set ++# CONFIG_IGC is not set ++# CONFIG_NET_VENDOR_MICROSOFT is not set ++# CONFIG_JME is not set ++# CONFIG_NET_VENDOR_LITEX is not set ++CONFIG_NET_VENDOR_MARVELL=y ++CONFIG_MVMDIO=m ++# CONFIG_SKGE is not set ++CONFIG_SKY2=m ++# CONFIG_SKY2_DEBUG is not set ++CONFIG_OCTEONTX2_MBOX=m ++# CONFIG_OCTEONTX2_AF is not set ++CONFIG_OCTEONTX2_PF=m ++CONFIG_OCTEONTX2_VF=m ++# CONFIG_NET_VENDOR_MELLANOX is not set ++# CONFIG_NET_VENDOR_MICREL is not set ++CONFIG_NET_VENDOR_MICROCHIP=y ++CONFIG_ENC28J60=m ++CONFIG_ENC28J60_WRITEVERIFY=y ++# CONFIG_ENCX24J600 is not set ++# CONFIG_LAN743X is not set ++# CONFIG_NET_VENDOR_MICROSEMI is not set ++# CONFIG_NET_VENDOR_MYRI is not set ++# CONFIG_FEALNX is not set ++# CONFIG_NET_VENDOR_NATSEMI is not set ++# CONFIG_NET_VENDOR_NETERION is not set ++# CONFIG_NET_VENDOR_NETRONOME is not set ++# CONFIG_NET_VENDOR_NI is not set ++# CONFIG_NET_VENDOR_NVIDIA is not set ++# CONFIG_NET_VENDOR_OKI is not set ++# CONFIG_ETHOC is not set ++CONFIG_NET_VENDOR_PACKET_ENGINES=y ++# CONFIG_HAMACHI is not set ++# CONFIG_YELLOWFIN is not set ++CONFIG_NET_VENDOR_PENSANDO=y ++CONFIG_IONIC=m ++# CONFIG_NET_VENDOR_QLOGIC is not set ++CONFIG_NET_VENDOR_QUALCOMM=y ++CONFIG_QCA7000=m ++# CONFIG_QCA7000_SPI is not set ++CONFIG_QCA7000_UART=m ++CONFIG_QCOM_EMAC=m ++# CONFIG_RMNET is not set ++# CONFIG_NET_VENDOR_RDC is not set ++CONFIG_NET_VENDOR_REALTEK=y ++# CONFIG_8139CP is not set ++# CONFIG_8139TOO is not set ++CONFIG_R8169=m ++# CONFIG_NET_VENDOR_RENESAS is not set ++# CONFIG_NET_VENDOR_ROCKER is not set ++# CONFIG_NET_VENDOR_SAMSUNG is not set ++# CONFIG_NET_VENDOR_SEEQ is not set ++# CONFIG_NET_VENDOR_SOLARFLARE is not set ++# CONFIG_NET_VENDOR_SILAN is not set ++# CONFIG_NET_VENDOR_SIS is not set ++CONFIG_NET_VENDOR_SMSC=y ++CONFIG_SMC91X=y ++# CONFIG_EPIC100 is not set ++CONFIG_SMSC911X=y ++# CONFIG_SMSC9420 is not set ++# CONFIG_NET_VENDOR_SOCIONEXT is not set ++CONFIG_NET_VENDOR_STMICRO=y ++CONFIG_STMMAC_ETH=m ++# CONFIG_STMMAC_SELFTESTS is not set ++CONFIG_STMMAC_PLATFORM=m ++# CONFIG_DWMAC_DWC_QOS_ETH is not set ++CONFIG_DWMAC_GENERIC=m ++CONFIG_DWMAC_BAIKAL=m ++CONFIG_DWMAC_ROCKCHIP=m ++# CONFIG_DWMAC_INTEL_PLAT is not set ++# CONFIG_DWMAC_LOONGSON is not set ++# CONFIG_STMMAC_PCI is not set ++# CONFIG_NET_VENDOR_SUN is not set ++# CONFIG_NET_VENDOR_SYNOPSYS is not set ++# CONFIG_NET_VENDOR_TEHUTI is not set ++# CONFIG_NET_VENDOR_TI is not set ++# CONFIG_NET_VENDOR_VIA is not set ++# CONFIG_NET_VENDOR_WIZNET is not set ++# CONFIG_NET_VENDOR_XILINX is not set ++# CONFIG_FDDI is not set ++# CONFIG_HIPPI is not set ++CONFIG_PHYLINK=y ++CONFIG_PHYLIB=y ++CONFIG_SWPHY=y ++CONFIG_LED_TRIGGER_PHY=y ++CONFIG_FIXED_PHY=y ++CONFIG_SFP=m ++ ++# ++# MII PHY device drivers ++# ++CONFIG_AMD_PHY=m ++CONFIG_ADIN_PHY=m ++CONFIG_AQUANTIA_PHY=m ++CONFIG_AX88796B_PHY=m ++CONFIG_BROADCOM_PHY=m ++# CONFIG_BCM54140_PHY is not set ++CONFIG_BCM7XXX_PHY=m ++CONFIG_BCM84881_PHY=m ++CONFIG_BCM87XX_PHY=m ++CONFIG_BCM_NET_PHYLIB=m ++CONFIG_CICADA_PHY=m ++# CONFIG_CORTINA_PHY is not set ++CONFIG_DAVICOM_PHY=m ++CONFIG_ICPLUS_PHY=m ++CONFIG_LXT_PHY=m ++# CONFIG_INTEL_XWAY_PHY is not set ++CONFIG_LSI_ET1011C_PHY=m ++CONFIG_MARVELL_PHY=m ++CONFIG_MARVELL_10G_PHY=m ++# CONFIG_MARVELL_88X2222_PHY is not set ++# CONFIG_MAXLINEAR_GPHY is not set ++# CONFIG_MEDIATEK_GE_PHY is not set ++CONFIG_MICREL_PHY=y ++CONFIG_MICROCHIP_PHY=m ++CONFIG_MICROCHIP_T1_PHY=m ++# CONFIG_MICROSEMI_PHY is not set ++# CONFIG_MOTORCOMM_PHY is not set ++CONFIG_NATIONAL_PHY=m ++# CONFIG_NXP_C45_TJA11XX_PHY is not set ++# CONFIG_NXP_TJA11XX_PHY is not set ++CONFIG_AT803X_PHY=m ++CONFIG_QSEMI_PHY=m ++CONFIG_REALTEK_PHY=m ++# CONFIG_RENESAS_PHY is not set ++CONFIG_ROCKCHIP_PHY=y ++CONFIG_SMSC_PHY=m ++# CONFIG_STE10XP is not set ++# CONFIG_TERANETICS_PHY is not set ++# CONFIG_DP83822_PHY is not set ++CONFIG_DP83TC811_PHY=m ++CONFIG_DP83848_PHY=m ++# CONFIG_DP83867_PHY is not set ++CONFIG_DP83869_PHY=m ++CONFIG_VITESSE_PHY=m ++# CONFIG_XILINX_GMII2RGMII is not set ++# CONFIG_MICREL_KS8995MA is not set ++CONFIG_MDIO_DEVICE=y ++CONFIG_MDIO_BUS=y ++CONFIG_FWNODE_MDIO=y ++CONFIG_OF_MDIO=y ++CONFIG_MDIO_DEVRES=y ++CONFIG_MDIO_BITBANG=y ++CONFIG_MDIO_BCM_UNIMAC=m ++CONFIG_MDIO_CAVIUM=y ++# CONFIG_MDIO_GPIO is not set ++# CONFIG_MDIO_HISI_FEMAC is not set ++CONFIG_MDIO_I2C=m ++CONFIG_MDIO_MVUSB=m ++CONFIG_MDIO_MSCC_MIIM=m ++# CONFIG_MDIO_OCTEON is not set ++# CONFIG_MDIO_IPQ4019 is not set ++CONFIG_MDIO_IPQ8064=m ++CONFIG_MDIO_THUNDER=y ++ ++# ++# MDIO Multiplexers ++# ++CONFIG_MDIO_BUS_MUX=y ++CONFIG_MDIO_BUS_MUX_GPIO=m ++CONFIG_MDIO_BUS_MUX_MULTIPLEXER=m ++CONFIG_MDIO_BUS_MUX_MMIOREG=y ++ ++# ++# PCS device drivers ++# ++CONFIG_PCS_XPCS=m ++# end of PCS device drivers ++ ++CONFIG_PPP=m ++CONFIG_PPP_BSDCOMP=m ++CONFIG_PPP_DEFLATE=m ++CONFIG_PPP_FILTER=y ++CONFIG_PPP_MPPE=m ++CONFIG_PPP_MULTILINK=y ++CONFIG_PPPOE=m ++CONFIG_PPTP=m ++CONFIG_PPPOL2TP=m ++CONFIG_PPP_ASYNC=m ++CONFIG_PPP_SYNC_TTY=m ++CONFIG_SLIP=m ++CONFIG_SLHC=m ++CONFIG_SLIP_COMPRESSED=y ++CONFIG_SLIP_SMART=y ++CONFIG_SLIP_MODE_SLIP6=y ++CONFIG_USB_NET_DRIVERS=y ++CONFIG_USB_CATC=m ++CONFIG_USB_KAWETH=m ++CONFIG_USB_PEGASUS=m ++CONFIG_USB_RTL8150=m ++CONFIG_USB_RTL8152=m ++CONFIG_USB_LAN78XX=m ++CONFIG_USB_USBNET=m ++CONFIG_USB_NET_AX8817X=m ++CONFIG_USB_NET_AX88179_178A=m ++CONFIG_USB_NET_CDCETHER=m ++CONFIG_USB_NET_CDC_EEM=m ++CONFIG_USB_NET_CDC_NCM=m ++CONFIG_USB_NET_HUAWEI_CDC_NCM=m ++CONFIG_USB_NET_CDC_MBIM=m ++CONFIG_USB_NET_DM9601=m ++CONFIG_USB_NET_SR9700=m ++CONFIG_USB_NET_SR9800=m ++CONFIG_USB_NET_SMSC75XX=m ++CONFIG_USB_NET_SMSC95XX=m ++CONFIG_USB_NET_GL620A=m ++CONFIG_USB_NET_NET1080=m ++CONFIG_USB_NET_PLUSB=m ++CONFIG_USB_NET_MCS7830=m ++CONFIG_USB_NET_RNDIS_HOST=m ++CONFIG_USB_NET_CDC_SUBSET_ENABLE=m ++CONFIG_USB_NET_CDC_SUBSET=m ++CONFIG_USB_ALI_M5632=y ++CONFIG_USB_AN2720=y ++CONFIG_USB_BELKIN=y ++CONFIG_USB_ARMLINUX=y ++CONFIG_USB_EPSON2888=y ++CONFIG_USB_KC2190=y ++CONFIG_USB_NET_ZAURUS=m ++CONFIG_USB_NET_CX82310_ETH=m ++CONFIG_USB_NET_KALMIA=m ++CONFIG_USB_NET_QMI_WWAN=m ++CONFIG_USB_HSO=m ++CONFIG_USB_NET_INT51X1=m ++CONFIG_USB_IPHETH=m ++CONFIG_USB_SIERRA_NET=m ++CONFIG_USB_VL600=m ++CONFIG_USB_NET_CH9200=m ++CONFIG_USB_NET_AQC111=m ++# CONFIG_USB_RTL8153_ECM is not set ++CONFIG_WLAN=y ++# CONFIG_WLAN_VENDOR_ADMTEK is not set ++CONFIG_ATH_COMMON=m ++CONFIG_WLAN_VENDOR_ATH=y ++# CONFIG_ATH_DEBUG is not set ++# CONFIG_ATH5K is not set ++# CONFIG_ATH5K_PCI is not set ++CONFIG_ATH9K_HW=m ++CONFIG_ATH9K_COMMON=m ++CONFIG_ATH9K_BTCOEX_SUPPORT=y ++CONFIG_ATH9K=m ++CONFIG_ATH9K_PCI=y ++CONFIG_ATH9K_AHB=y ++# CONFIG_ATH9K_DEBUGFS is not set ++CONFIG_ATH9K_DYNACK=y ++CONFIG_ATH9K_WOW=y ++CONFIG_ATH9K_RFKILL=y ++# CONFIG_ATH9K_CHANNEL_CONTEXT is not set ++CONFIG_ATH9K_PCOEM=y ++CONFIG_ATH9K_PCI_NO_EEPROM=m ++CONFIG_ATH9K_HTC=m ++# CONFIG_ATH9K_HTC_DEBUGFS is not set ++# CONFIG_ATH9K_HWRNG is not set ++CONFIG_CARL9170=m ++CONFIG_CARL9170_LEDS=y ++CONFIG_CARL9170_WPC=y ++# CONFIG_CARL9170_HWRNG is not set ++CONFIG_ATH6KL=m ++CONFIG_ATH6KL_SDIO=m ++CONFIG_ATH6KL_USB=m ++# CONFIG_ATH6KL_DEBUG is not set ++# CONFIG_ATH6KL_TRACING is not set ++CONFIG_AR5523=m ++CONFIG_WIL6210=m ++CONFIG_WIL6210_ISR_COR=y ++# CONFIG_WIL6210_TRACING is not set ++CONFIG_WIL6210_DEBUGFS=y ++CONFIG_ATH10K=m ++CONFIG_ATH10K_CE=y ++CONFIG_ATH10K_PCI=m ++CONFIG_ATH10K_AHB=y ++CONFIG_ATH10K_SDIO=m ++CONFIG_ATH10K_USB=m ++# CONFIG_ATH10K_DEBUG is not set ++# CONFIG_ATH10K_DEBUGFS is not set ++# CONFIG_ATH10K_TRACING is not set ++# CONFIG_WCN36XX is not set ++# CONFIG_ATH11K is not set ++CONFIG_WLAN_VENDOR_ATMEL=y ++CONFIG_ATMEL=m ++CONFIG_PCI_ATMEL=m ++CONFIG_AT76C50X_USB=m ++CONFIG_WLAN_VENDOR_BROADCOM=y ++CONFIG_B43=m ++CONFIG_B43_BCMA=y ++CONFIG_B43_SSB=y ++CONFIG_B43_BUSES_BCMA_AND_SSB=y ++# CONFIG_B43_BUSES_BCMA is not set ++# CONFIG_B43_BUSES_SSB is not set ++CONFIG_B43_PCI_AUTOSELECT=y ++CONFIG_B43_PCICORE_AUTOSELECT=y ++# CONFIG_B43_SDIO is not set ++CONFIG_B43_BCMA_PIO=y ++CONFIG_B43_PIO=y ++CONFIG_B43_PHY_G=y ++CONFIG_B43_PHY_N=y ++CONFIG_B43_PHY_LP=y ++CONFIG_B43_PHY_HT=y ++CONFIG_B43_LEDS=y ++CONFIG_B43_HWRNG=y ++# CONFIG_B43_DEBUG is not set ++CONFIG_B43LEGACY=m ++CONFIG_B43LEGACY_PCI_AUTOSELECT=y ++CONFIG_B43LEGACY_PCICORE_AUTOSELECT=y ++CONFIG_B43LEGACY_LEDS=y ++CONFIG_B43LEGACY_HWRNG=y ++CONFIG_B43LEGACY_DEBUG=y ++CONFIG_B43LEGACY_DMA=y ++CONFIG_B43LEGACY_PIO=y ++CONFIG_B43LEGACY_DMA_AND_PIO_MODE=y ++# CONFIG_B43LEGACY_DMA_MODE is not set ++# CONFIG_B43LEGACY_PIO_MODE is not set ++CONFIG_BRCMUTIL=m ++CONFIG_BRCMSMAC=m ++CONFIG_BRCMFMAC=m ++CONFIG_BRCMFMAC_PROTO_BCDC=y ++CONFIG_BRCMFMAC_PROTO_MSGBUF=y ++CONFIG_BRCMFMAC_SDIO=y ++CONFIG_BRCMFMAC_USB=y ++CONFIG_BRCMFMAC_PCIE=y ++CONFIG_BRCM_TRACING=y ++CONFIG_BRCMDBG=y ++CONFIG_WLAN_VENDOR_CISCO=y ++CONFIG_WLAN_VENDOR_INTEL=y ++CONFIG_IPW2100=m ++# CONFIG_IPW2100_MONITOR is not set ++# CONFIG_IPW2100_DEBUG is not set ++# CONFIG_IPW2200 is not set ++CONFIG_LIBIPW=m ++# CONFIG_LIBIPW_DEBUG is not set ++# CONFIG_IWL4965 is not set ++# CONFIG_IWL3945 is not set ++# CONFIG_IWLWIFI is not set ++CONFIG_WLAN_VENDOR_INTERSIL=y ++# CONFIG_HOSTAP is not set ++# CONFIG_HERMES is not set ++# CONFIG_P54_COMMON is not set ++CONFIG_WLAN_VENDOR_MARVELL=y ++# CONFIG_LIBERTAS is not set ++CONFIG_LIBERTAS_THINFIRM=m ++# CONFIG_LIBERTAS_THINFIRM_DEBUG is not set ++CONFIG_LIBERTAS_THINFIRM_USB=m ++# CONFIG_MWIFIEX is not set ++CONFIG_MWL8K=m ++CONFIG_WLAN_VENDOR_MEDIATEK=y ++CONFIG_MT7601U=m ++CONFIG_MT76_CORE=m ++CONFIG_MT76_LEDS=y ++CONFIG_MT76_USB=m ++CONFIG_MT76x02_LIB=m ++CONFIG_MT76x02_USB=m ++CONFIG_MT76_CONNAC_LIB=m ++CONFIG_MT76x0_COMMON=m ++CONFIG_MT76x0U=m ++CONFIG_MT76x0E=m ++CONFIG_MT76x2_COMMON=m ++CONFIG_MT76x2E=m ++CONFIG_MT76x2U=m ++CONFIG_MT7603E=m ++CONFIG_MT7615_COMMON=m ++CONFIG_MT7615E=m ++# CONFIG_MT7663U is not set ++# CONFIG_MT7663S is not set ++# CONFIG_MT7915E is not set ++# CONFIG_MT7921E is not set ++CONFIG_WLAN_VENDOR_MICROCHIP=y ++# CONFIG_WILC1000_SDIO is not set ++# CONFIG_WILC1000_SPI is not set ++CONFIG_WLAN_VENDOR_RALINK=y ++CONFIG_RT2X00=m ++CONFIG_RT2400PCI=m ++CONFIG_RT2500PCI=m ++CONFIG_RT61PCI=m ++CONFIG_RT2800PCI=m ++CONFIG_RT2800PCI_RT33XX=y ++CONFIG_RT2800PCI_RT35XX=y ++CONFIG_RT2800PCI_RT53XX=y ++CONFIG_RT2800PCI_RT3290=y ++CONFIG_RT2500USB=m ++CONFIG_RT73USB=m ++CONFIG_RT2800USB=m ++CONFIG_RT2800USB_RT33XX=y ++CONFIG_RT2800USB_RT35XX=y ++CONFIG_RT2800USB_RT3573=y ++CONFIG_RT2800USB_RT53XX=y ++CONFIG_RT2800USB_RT55XX=y ++# CONFIG_RT2800USB_UNKNOWN is not set ++CONFIG_RT2800_LIB=m ++CONFIG_RT2800_LIB_MMIO=m ++CONFIG_RT2X00_LIB_MMIO=m ++CONFIG_RT2X00_LIB_PCI=m ++CONFIG_RT2X00_LIB_USB=m ++CONFIG_RT2X00_LIB=m ++CONFIG_RT2X00_LIB_FIRMWARE=y ++CONFIG_RT2X00_LIB_CRYPTO=y ++CONFIG_RT2X00_LIB_LEDS=y ++# CONFIG_RT2X00_DEBUG is not set ++CONFIG_WLAN_VENDOR_REALTEK=y ++CONFIG_RTL8180=m ++CONFIG_RTL8187=m ++CONFIG_RTL8187_LEDS=y ++CONFIG_RTL_CARDS=m ++CONFIG_RTL8192CE=m ++CONFIG_RTL8192SE=m ++CONFIG_RTL8192DE=m ++CONFIG_RTL8723AE=m ++CONFIG_RTL8723BE=m ++CONFIG_RTL8188EE=m ++CONFIG_RTL8192EE=m ++CONFIG_RTL8821AE=m ++CONFIG_RTL8192CU=m ++CONFIG_RTLWIFI=m ++CONFIG_RTLWIFI_PCI=m ++CONFIG_RTLWIFI_USB=m ++# CONFIG_RTLWIFI_DEBUG is not set ++CONFIG_RTL8192C_COMMON=m ++CONFIG_RTL8723_COMMON=m ++CONFIG_RTLBTCOEXIST=m ++CONFIG_RTL8XXXU=m ++# CONFIG_RTL8XXXU_UNTESTED is not set ++CONFIG_RTW88=m ++CONFIG_RTW88_CORE=m ++CONFIG_RTW88_PCI=m ++CONFIG_RTW88_8822B=m ++CONFIG_RTW88_8822C=m ++CONFIG_RTW88_8822BE=m ++CONFIG_RTW88_8822CE=m ++# CONFIG_RTW88_8723DE is not set ++# CONFIG_RTW88_8821CE is not set ++CONFIG_RTW88_DEBUG=y ++CONFIG_RTW88_DEBUGFS=y ++CONFIG_WLAN_VENDOR_RSI=y ++CONFIG_RSI_91X=m ++# CONFIG_RSI_DEBUGFS is not set ++CONFIG_RSI_SDIO=m ++CONFIG_RSI_USB=m ++CONFIG_RSI_COEX=y ++CONFIG_WLAN_VENDOR_ST=y ++CONFIG_CW1200=m ++CONFIG_CW1200_WLAN_SDIO=m ++CONFIG_CW1200_WLAN_SPI=m ++CONFIG_WLAN_VENDOR_TI=y ++CONFIG_WL1251=m ++CONFIG_WL1251_SPI=m ++CONFIG_WL1251_SDIO=m ++CONFIG_WL12XX=m ++CONFIG_WL18XX=m ++CONFIG_WLCORE=m ++CONFIG_WLCORE_SPI=m ++CONFIG_WLCORE_SDIO=m ++CONFIG_WILINK_PLATFORM_DATA=y ++CONFIG_WLAN_VENDOR_ZYDAS=y ++CONFIG_USB_ZD1201=m ++CONFIG_ZD1211RW=m ++# CONFIG_ZD1211RW_DEBUG is not set ++CONFIG_WLAN_VENDOR_QUANTENNA=y ++CONFIG_QTNFMAC=m ++CONFIG_QTNFMAC_PCIE=m ++CONFIG_MAC80211_HWSIM=m ++CONFIG_USB_NET_RNDIS_WLAN=m ++CONFIG_VIRT_WIFI=m ++# CONFIG_WAN is not set ++ ++# ++# Wireless WAN ++# ++# CONFIG_WWAN is not set ++# end of Wireless WAN ++ ++# CONFIG_VMXNET3 is not set ++# CONFIG_NETDEVSIM is not set ++# CONFIG_NET_FAILOVER is not set ++# CONFIG_ISDN is not set ++ ++# ++# Input device support ++# ++CONFIG_INPUT=y ++CONFIG_INPUT_LEDS=y ++CONFIG_INPUT_FF_MEMLESS=m ++# CONFIG_INPUT_SPARSEKMAP is not set ++CONFIG_INPUT_MATRIXKMAP=y ++ ++# ++# Userland interfaces ++# ++CONFIG_INPUT_MOUSEDEV=y ++CONFIG_INPUT_MOUSEDEV_PSAUX=y ++CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024 ++CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768 ++CONFIG_INPUT_JOYDEV=m ++CONFIG_INPUT_EVDEV=y ++# CONFIG_INPUT_EVBUG is not set ++ ++# ++# Input Device Drivers ++# ++CONFIG_INPUT_KEYBOARD=y ++CONFIG_KEYBOARD_ADC=m ++CONFIG_KEYBOARD_ADP5520=m ++# CONFIG_KEYBOARD_ADP5588 is not set ++# CONFIG_KEYBOARD_ADP5589 is not set ++CONFIG_KEYBOARD_ATKBD=y ++CONFIG_KEYBOARD_QT1050=m ++# CONFIG_KEYBOARD_QT1070 is not set ++# CONFIG_KEYBOARD_QT2160 is not set ++# CONFIG_KEYBOARD_DLINK_DIR685 is not set ++# CONFIG_KEYBOARD_LKKBD is not set ++CONFIG_KEYBOARD_GPIO=y ++# CONFIG_KEYBOARD_GPIO_POLLED is not set ++# CONFIG_KEYBOARD_TCA6416 is not set ++# CONFIG_KEYBOARD_TCA8418 is not set ++# CONFIG_KEYBOARD_MATRIX is not set ++# CONFIG_KEYBOARD_LM8323 is not set ++# CONFIG_KEYBOARD_LM8333 is not set ++# CONFIG_KEYBOARD_MAX7359 is not set ++# CONFIG_KEYBOARD_MCS is not set ++# CONFIG_KEYBOARD_MPR121 is not set ++# CONFIG_KEYBOARD_NEWTON is not set ++# CONFIG_KEYBOARD_OPENCORES is not set ++# CONFIG_KEYBOARD_SAMSUNG is not set ++# CONFIG_KEYBOARD_STOWAWAY is not set ++# CONFIG_KEYBOARD_SUNKBD is not set ++CONFIG_KEYBOARD_IQS62X=m ++# CONFIG_KEYBOARD_OMAP4 is not set ++# CONFIG_KEYBOARD_TM2_TOUCHKEY is not set ++# CONFIG_KEYBOARD_XTKBD is not set ++# CONFIG_KEYBOARD_CAP11XX is not set ++# CONFIG_KEYBOARD_BCM is not set ++CONFIG_INPUT_MOUSE=y ++CONFIG_MOUSE_PS2=y ++CONFIG_MOUSE_PS2_ALPS=y ++CONFIG_MOUSE_PS2_BYD=y ++CONFIG_MOUSE_PS2_LOGIPS2PP=y ++CONFIG_MOUSE_PS2_SYNAPTICS=y ++CONFIG_MOUSE_PS2_SYNAPTICS_SMBUS=y ++CONFIG_MOUSE_PS2_CYPRESS=y ++CONFIG_MOUSE_PS2_TRACKPOINT=y ++# CONFIG_MOUSE_PS2_ELANTECH is not set ++# CONFIG_MOUSE_PS2_SENTELIC is not set ++# CONFIG_MOUSE_PS2_TOUCHKIT is not set ++CONFIG_MOUSE_PS2_FOCALTECH=y ++CONFIG_MOUSE_PS2_SMBUS=y ++# CONFIG_MOUSE_SERIAL is not set ++# CONFIG_MOUSE_APPLETOUCH is not set ++# CONFIG_MOUSE_BCM5974 is not set ++# CONFIG_MOUSE_CYAPA is not set ++# CONFIG_MOUSE_ELAN_I2C is not set ++# CONFIG_MOUSE_VSXXXAA is not set ++# CONFIG_MOUSE_GPIO is not set ++# CONFIG_MOUSE_SYNAPTICS_I2C is not set ++# CONFIG_MOUSE_SYNAPTICS_USB is not set ++CONFIG_INPUT_JOYSTICK=y ++# CONFIG_JOYSTICK_ANALOG is not set ++# CONFIG_JOYSTICK_A3D is not set ++# CONFIG_JOYSTICK_ADC is not set ++# CONFIG_JOYSTICK_ADI is not set ++# CONFIG_JOYSTICK_COBRA is not set ++# CONFIG_JOYSTICK_GF2K is not set ++# CONFIG_JOYSTICK_GRIP is not set ++# CONFIG_JOYSTICK_GRIP_MP is not set ++# CONFIG_JOYSTICK_GUILLEMOT is not set ++# CONFIG_JOYSTICK_INTERACT is not set ++# CONFIG_JOYSTICK_SIDEWINDER is not set ++# CONFIG_JOYSTICK_TMDC is not set ++CONFIG_JOYSTICK_IFORCE=m ++CONFIG_JOYSTICK_IFORCE_USB=m ++# CONFIG_JOYSTICK_IFORCE_232 is not set ++# CONFIG_JOYSTICK_WARRIOR is not set ++# CONFIG_JOYSTICK_MAGELLAN is not set ++# CONFIG_JOYSTICK_SPACEORB is not set ++# CONFIG_JOYSTICK_SPACEBALL is not set ++# CONFIG_JOYSTICK_STINGER is not set ++# CONFIG_JOYSTICK_TWIDJOY is not set ++# CONFIG_JOYSTICK_ZHENHUA is not set ++# CONFIG_JOYSTICK_AS5011 is not set ++# CONFIG_JOYSTICK_JOYDUMP is not set ++CONFIG_JOYSTICK_XPAD=m ++CONFIG_JOYSTICK_XPAD_FF=y ++CONFIG_JOYSTICK_XPAD_LEDS=y ++# CONFIG_JOYSTICK_PSXPAD_SPI is not set ++# CONFIG_JOYSTICK_PXRC is not set ++# CONFIG_JOYSTICK_QWIIC is not set ++# CONFIG_JOYSTICK_FSIA6B is not set ++# CONFIG_INPUT_TABLET is not set ++CONFIG_INPUT_TOUCHSCREEN=y ++CONFIG_TOUCHSCREEN_ADS7846=m ++CONFIG_TOUCHSCREEN_AD7877=m ++CONFIG_TOUCHSCREEN_AD7879=m ++CONFIG_TOUCHSCREEN_AD7879_I2C=m ++CONFIG_TOUCHSCREEN_AD7879_SPI=m ++CONFIG_TOUCHSCREEN_ADC=m ++CONFIG_TOUCHSCREEN_AR1021_I2C=m ++CONFIG_TOUCHSCREEN_ATMEL_MXT=m ++CONFIG_TOUCHSCREEN_ATMEL_MXT_T37=y ++CONFIG_TOUCHSCREEN_AUO_PIXCIR=m ++CONFIG_TOUCHSCREEN_BU21013=m ++CONFIG_TOUCHSCREEN_BU21029=m ++CONFIG_TOUCHSCREEN_CHIPONE_ICN8318=m ++# CONFIG_TOUCHSCREEN_CY8CTMA140 is not set ++CONFIG_TOUCHSCREEN_CY8CTMG110=m ++CONFIG_TOUCHSCREEN_CYTTSP_CORE=m ++CONFIG_TOUCHSCREEN_CYTTSP_I2C=m ++CONFIG_TOUCHSCREEN_CYTTSP_SPI=m ++CONFIG_TOUCHSCREEN_CYTTSP4_CORE=m ++CONFIG_TOUCHSCREEN_CYTTSP4_I2C=m ++CONFIG_TOUCHSCREEN_CYTTSP4_SPI=m ++CONFIG_TOUCHSCREEN_DYNAPRO=m ++CONFIG_TOUCHSCREEN_HAMPSHIRE=m ++CONFIG_TOUCHSCREEN_EETI=m ++CONFIG_TOUCHSCREEN_EGALAX=m ++CONFIG_TOUCHSCREEN_EGALAX_SERIAL=m ++CONFIG_TOUCHSCREEN_EXC3000=m ++CONFIG_TOUCHSCREEN_FUJITSU=m ++CONFIG_TOUCHSCREEN_GOODIX=m ++CONFIG_TOUCHSCREEN_HIDEEP=m ++# CONFIG_TOUCHSCREEN_HYCON_HY46XX is not set ++CONFIG_TOUCHSCREEN_ILI210X=m ++# CONFIG_TOUCHSCREEN_ILITEK is not set ++CONFIG_TOUCHSCREEN_S6SY761=m ++CONFIG_TOUCHSCREEN_GUNZE=m ++CONFIG_TOUCHSCREEN_EKTF2127=m ++CONFIG_TOUCHSCREEN_ELAN=m ++CONFIG_TOUCHSCREEN_ELO=m ++CONFIG_TOUCHSCREEN_WACOM_W8001=m ++CONFIG_TOUCHSCREEN_WACOM_I2C=m ++CONFIG_TOUCHSCREEN_MAX11801=m ++CONFIG_TOUCHSCREEN_MCS5000=m ++CONFIG_TOUCHSCREEN_MMS114=m ++CONFIG_TOUCHSCREEN_MELFAS_MIP4=m ++# CONFIG_TOUCHSCREEN_MSG2638 is not set ++CONFIG_TOUCHSCREEN_MTOUCH=m ++CONFIG_TOUCHSCREEN_IMX6UL_TSC=m ++CONFIG_TOUCHSCREEN_INEXIO=m ++CONFIG_TOUCHSCREEN_MK712=m ++CONFIG_TOUCHSCREEN_PENMOUNT=m ++CONFIG_TOUCHSCREEN_EDT_FT5X06=m ++CONFIG_TOUCHSCREEN_TOUCHRIGHT=m ++CONFIG_TOUCHSCREEN_TOUCHWIN=m ++CONFIG_TOUCHSCREEN_UCB1400=m ++CONFIG_TOUCHSCREEN_PIXCIR=m ++CONFIG_TOUCHSCREEN_WDT87XX_I2C=m ++CONFIG_TOUCHSCREEN_WM97XX=m ++CONFIG_TOUCHSCREEN_WM9705=y ++CONFIG_TOUCHSCREEN_WM9712=y ++CONFIG_TOUCHSCREEN_WM9713=y ++CONFIG_TOUCHSCREEN_USB_COMPOSITE=m ++CONFIG_TOUCHSCREEN_USB_EGALAX=y ++CONFIG_TOUCHSCREEN_USB_PANJIT=y ++CONFIG_TOUCHSCREEN_USB_3M=y ++CONFIG_TOUCHSCREEN_USB_ITM=y ++CONFIG_TOUCHSCREEN_USB_ETURBO=y ++CONFIG_TOUCHSCREEN_USB_GUNZE=y ++CONFIG_TOUCHSCREEN_USB_DMC_TSC10=y ++CONFIG_TOUCHSCREEN_USB_IRTOUCH=y ++CONFIG_TOUCHSCREEN_USB_IDEALTEK=y ++CONFIG_TOUCHSCREEN_USB_GENERAL_TOUCH=y ++CONFIG_TOUCHSCREEN_USB_GOTOP=y ++CONFIG_TOUCHSCREEN_USB_JASTEC=y ++CONFIG_TOUCHSCREEN_USB_ELO=y ++CONFIG_TOUCHSCREEN_USB_E2I=y ++CONFIG_TOUCHSCREEN_USB_ZYTRONIC=y ++CONFIG_TOUCHSCREEN_USB_ETT_TC45USB=y ++CONFIG_TOUCHSCREEN_USB_NEXIO=y ++CONFIG_TOUCHSCREEN_USB_EASYTOUCH=y ++CONFIG_TOUCHSCREEN_TOUCHIT213=m ++CONFIG_TOUCHSCREEN_TSC_SERIO=m ++CONFIG_TOUCHSCREEN_TSC200X_CORE=m ++CONFIG_TOUCHSCREEN_TSC2004=m ++CONFIG_TOUCHSCREEN_TSC2005=m ++CONFIG_TOUCHSCREEN_TSC2007=m ++CONFIG_TOUCHSCREEN_TSC2007_IIO=y ++CONFIG_TOUCHSCREEN_RM_TS=m ++CONFIG_TOUCHSCREEN_SILEAD=m ++CONFIG_TOUCHSCREEN_SIS_I2C=m ++CONFIG_TOUCHSCREEN_ST1232=m ++CONFIG_TOUCHSCREEN_STMFTS=m ++CONFIG_TOUCHSCREEN_SUR40=m ++CONFIG_TOUCHSCREEN_SURFACE3_SPI=m ++CONFIG_TOUCHSCREEN_SX8654=m ++CONFIG_TOUCHSCREEN_TPS6507X=m ++CONFIG_TOUCHSCREEN_ZET6223=m ++CONFIG_TOUCHSCREEN_ZFORCE=m ++CONFIG_TOUCHSCREEN_ROHM_BU21023=m ++CONFIG_TOUCHSCREEN_IQS5XX=m ++# CONFIG_TOUCHSCREEN_ZINITIX is not set ++CONFIG_INPUT_MISC=y ++# CONFIG_INPUT_AD714X is not set ++# CONFIG_INPUT_ATMEL_CAPTOUCH is not set ++# CONFIG_INPUT_BMA150 is not set ++# CONFIG_INPUT_E3X0_BUTTON is not set ++CONFIG_INPUT_MAX77650_ONKEY=m ++# CONFIG_INPUT_MMA8450 is not set ++CONFIG_INPUT_GPIO_BEEPER=m ++CONFIG_INPUT_GPIO_DECODER=m ++CONFIG_INPUT_GPIO_VIBRA=m ++# CONFIG_INPUT_ATI_REMOTE2 is not set ++# CONFIG_INPUT_KEYSPAN_REMOTE is not set ++# CONFIG_INPUT_KXTJ9 is not set ++# CONFIG_INPUT_POWERMATE is not set ++# CONFIG_INPUT_YEALINK is not set ++# CONFIG_INPUT_CM109 is not set ++# CONFIG_INPUT_REGULATOR_HAPTIC is not set ++CONFIG_INPUT_UINPUT=m ++# CONFIG_INPUT_PCF8574 is not set ++# CONFIG_INPUT_PWM_BEEPER is not set ++# CONFIG_INPUT_PWM_VIBRA is not set ++CONFIG_INPUT_RK805_PWRKEY=y ++# CONFIG_INPUT_GPIO_ROTARY_ENCODER is not set ++# CONFIG_INPUT_DA7280_HAPTICS is not set ++# CONFIG_INPUT_ADXL34X is not set ++# CONFIG_INPUT_IMS_PCU is not set ++# CONFIG_INPUT_IQS269A is not set ++# CONFIG_INPUT_IQS626A is not set ++# CONFIG_INPUT_CMA3000 is not set ++# CONFIG_INPUT_DRV260X_HAPTICS is not set ++# CONFIG_INPUT_DRV2665_HAPTICS is not set ++# CONFIG_INPUT_DRV2667_HAPTICS is not set ++CONFIG_RMI4_CORE=m ++CONFIG_RMI4_I2C=m ++CONFIG_RMI4_SPI=m ++CONFIG_RMI4_SMB=m ++CONFIG_RMI4_F03=y ++CONFIG_RMI4_F03_SERIO=m ++CONFIG_RMI4_2D_SENSOR=y ++CONFIG_RMI4_F11=y ++CONFIG_RMI4_F12=y ++CONFIG_RMI4_F30=y ++# CONFIG_RMI4_F34 is not set ++# CONFIG_RMI4_F3A is not set ++# CONFIG_RMI4_F54 is not set ++# CONFIG_RMI4_F55 is not set ++ ++# ++# Hardware I/O ports ++# ++CONFIG_SERIO=y ++CONFIG_SERIO_SERPORT=m ++CONFIG_SERIO_AMBAKMI=y ++# CONFIG_SERIO_PCIPS2 is not set ++CONFIG_SERIO_LIBPS2=y ++# CONFIG_SERIO_RAW is not set ++# CONFIG_SERIO_ALTERA_PS2 is not set ++# CONFIG_SERIO_PS2MULT is not set ++# CONFIG_SERIO_ARC_PS2 is not set ++# CONFIG_SERIO_APBPS2 is not set ++CONFIG_SERIO_TPLATFORMS=m ++# CONFIG_SERIO_GPIO_PS2 is not set ++# CONFIG_USERIO is not set ++# CONFIG_GAMEPORT is not set ++# end of Hardware I/O ports ++# end of Input device support ++ ++# ++# Character devices ++# ++CONFIG_TTY=y ++CONFIG_VT=y ++CONFIG_CONSOLE_TRANSLATIONS=y ++CONFIG_VT_CONSOLE=y ++CONFIG_VT_CONSOLE_SLEEP=y ++CONFIG_HW_CONSOLE=y ++CONFIG_VT_HW_CONSOLE_BINDING=y ++CONFIG_UNIX98_PTYS=y ++CONFIG_LEGACY_PTYS=y ++CONFIG_LEGACY_PTY_COUNT=0 ++CONFIG_LDISC_AUTOLOAD=y ++ ++# ++# Serial drivers ++# ++CONFIG_SERIAL_EARLYCON=y ++CONFIG_SERIAL_8250=y ++# CONFIG_SERIAL_8250_DEPRECATED_OPTIONS is not set ++CONFIG_SERIAL_8250_16550A_VARIANTS=y ++CONFIG_SERIAL_8250_FINTEK=y ++CONFIG_SERIAL_8250_CONSOLE=y ++CONFIG_SERIAL_8250_DMA=y ++CONFIG_SERIAL_8250_PCI=m ++CONFIG_SERIAL_8250_EXAR=m ++CONFIG_SERIAL_8250_NR_UARTS=8 ++CONFIG_SERIAL_8250_RUNTIME_UARTS=8 ++# CONFIG_SERIAL_8250_EXTENDED is not set ++# CONFIG_SERIAL_8250_ASPEED_VUART is not set ++CONFIG_SERIAL_8250_DWLIB=y ++CONFIG_SERIAL_8250_FSL=y ++CONFIG_SERIAL_8250_DW=y ++# CONFIG_SERIAL_8250_RT288X is not set ++CONFIG_SERIAL_OF_PLATFORM=y ++ ++# ++# Non-8250 serial port support ++# ++CONFIG_SERIAL_AMBA_PL010=y ++CONFIG_SERIAL_AMBA_PL010_CONSOLE=y ++CONFIG_SERIAL_AMBA_PL011=y ++CONFIG_SERIAL_AMBA_PL011_CONSOLE=y ++CONFIG_SERIAL_EARLYCON_ARM_SEMIHOST=y ++# CONFIG_SERIAL_KGDB_NMI is not set ++# CONFIG_SERIAL_MAX3100 is not set ++# CONFIG_SERIAL_MAX310X is not set ++# CONFIG_SERIAL_UARTLITE is not set ++CONFIG_SERIAL_CORE=y ++CONFIG_SERIAL_CORE_CONSOLE=y ++CONFIG_CONSOLE_POLL=y ++CONFIG_SERIAL_JSM=m ++CONFIG_SERIAL_SIFIVE=m ++CONFIG_SERIAL_SCCNXP=y ++CONFIG_SERIAL_SCCNXP_CONSOLE=y ++CONFIG_SERIAL_SC16IS7XX_CORE=m ++CONFIG_SERIAL_SC16IS7XX=m ++CONFIG_SERIAL_SC16IS7XX_I2C=y ++CONFIG_SERIAL_SC16IS7XX_SPI=y ++# CONFIG_SERIAL_BCM63XX is not set ++CONFIG_SERIAL_ALTERA_JTAGUART=m ++CONFIG_SERIAL_ALTERA_UART=m ++CONFIG_SERIAL_ALTERA_UART_MAXPORTS=4 ++CONFIG_SERIAL_ALTERA_UART_BAUDRATE=115200 ++CONFIG_SERIAL_XILINX_PS_UART=y ++CONFIG_SERIAL_XILINX_PS_UART_CONSOLE=y ++CONFIG_SERIAL_ARC=m ++CONFIG_SERIAL_ARC_NR_PORTS=1 ++CONFIG_SERIAL_RP2=m ++CONFIG_SERIAL_RP2_NR_UARTS=32 ++CONFIG_SERIAL_FSL_LPUART=m ++CONFIG_SERIAL_FSL_LINFLEXUART=m ++CONFIG_SERIAL_CONEXANT_DIGICOLOR=m ++CONFIG_SERIAL_SPRD=m ++# end of Serial drivers ++ ++CONFIG_SERIAL_MCTRL_GPIO=y ++CONFIG_SERIAL_NONSTANDARD=y ++CONFIG_MOXA_INTELLIO=m ++CONFIG_MOXA_SMARTIO=m ++CONFIG_SYNCLINK_GT=m ++CONFIG_N_HDLC=m ++CONFIG_N_GSM=m ++CONFIG_NOZOMI=m ++CONFIG_NULL_TTY=m ++CONFIG_HVC_DRIVER=y ++# CONFIG_HVC_DCC is not set ++CONFIG_SERIAL_DEV_BUS=y ++CONFIG_SERIAL_DEV_CTRL_TTYPORT=y ++CONFIG_TTY_PRINTK=m ++CONFIG_TTY_PRINTK_LEVEL=6 ++CONFIG_VIRTIO_CONSOLE=y ++# CONFIG_IPMI_HANDLER is not set ++# CONFIG_IPMB_DEVICE_INTERFACE is not set ++CONFIG_HW_RANDOM=m ++# CONFIG_HW_RANDOM_TIMERIOMEM is not set ++# CONFIG_HW_RANDOM_BA431 is not set ++# CONFIG_HW_RANDOM_VIRTIO is not set ++CONFIG_HW_RANDOM_CAVIUM=m ++# CONFIG_HW_RANDOM_CCTRNG is not set ++# CONFIG_HW_RANDOM_XIPHERA is not set ++CONFIG_HW_RANDOM_ARM_SMCCC_TRNG=m ++# CONFIG_APPLICOM is not set ++CONFIG_DEVMEM=y ++CONFIG_DEVPORT=y ++# CONFIG_TCG_TPM is not set ++# CONFIG_XILLYBUS is not set ++# CONFIG_XILLYUSB is not set ++# CONFIG_RANDOM_TRUST_CPU is not set ++# CONFIG_RANDOM_TRUST_BOOTLOADER is not set ++# end of Character devices ++ ++# ++# I2C support ++# ++CONFIG_I2C=y ++CONFIG_I2C_BOARDINFO=y ++CONFIG_I2C_COMPAT=y ++CONFIG_I2C_CHARDEV=y ++CONFIG_I2C_MUX=m ++ ++# ++# Multiplexer I2C Chip support ++# ++CONFIG_I2C_ARB_GPIO_CHALLENGE=m ++CONFIG_I2C_MUX_GPIO=m ++CONFIG_I2C_MUX_GPMUX=m ++CONFIG_I2C_MUX_LTC4306=m ++CONFIG_I2C_MUX_PCA9541=m ++CONFIG_I2C_MUX_PCA954x=m ++CONFIG_I2C_MUX_PINCTRL=m ++CONFIG_I2C_MUX_REG=m ++CONFIG_I2C_DEMUX_PINCTRL=m ++CONFIG_I2C_MUX_MLXCPLD=m ++# end of Multiplexer I2C Chip support ++ ++CONFIG_I2C_HELPER_AUTO=y ++CONFIG_I2C_SMBUS=m ++CONFIG_I2C_ALGOBIT=y ++ ++# ++# I2C Hardware Bus support ++# ++ ++# ++# PC SMBus host controller drivers ++# ++# CONFIG_I2C_ALI1535 is not set ++# CONFIG_I2C_ALI1563 is not set ++# CONFIG_I2C_ALI15X3 is not set ++# CONFIG_I2C_AMD756 is not set ++# CONFIG_I2C_AMD8111 is not set ++# CONFIG_I2C_I801 is not set ++# CONFIG_I2C_ISCH is not set ++# CONFIG_I2C_PIIX4 is not set ++# CONFIG_I2C_NFORCE2 is not set ++# CONFIG_I2C_NVIDIA_GPU is not set ++# CONFIG_I2C_SIS5595 is not set ++# CONFIG_I2C_SIS630 is not set ++# CONFIG_I2C_SIS96X is not set ++# CONFIG_I2C_VIA is not set ++# CONFIG_I2C_VIAPRO is not set ++ ++# ++# I2C system bus drivers (mostly embedded / system-on-chip) ++# ++CONFIG_I2C_CADENCE=m ++CONFIG_I2C_CBUS_GPIO=m ++CONFIG_I2C_DESIGNWARE_CORE=y ++# CONFIG_I2C_DESIGNWARE_SLAVE is not set ++CONFIG_I2C_DESIGNWARE_PLATFORM=y ++# CONFIG_I2C_DESIGNWARE_PCI is not set ++# CONFIG_I2C_EMEV2 is not set ++# CONFIG_I2C_GPIO is not set ++# CONFIG_I2C_NOMADIK is not set ++# CONFIG_I2C_OCORES is not set ++# CONFIG_I2C_PCA_PLATFORM is not set ++CONFIG_I2C_RK3X=y ++# CONFIG_I2C_SIMTEC is not set ++# CONFIG_I2C_THUNDERX is not set ++# CONFIG_I2C_XILINX is not set ++ ++# ++# External I2C/SMBus adapter drivers ++# ++CONFIG_I2C_DIOLAN_U2C=m ++# CONFIG_I2C_CP2615 is not set ++CONFIG_I2C_ROBOTFUZZ_OSIF=m ++CONFIG_I2C_TAOS_EVM=m ++CONFIG_I2C_TINY_USB=m ++ ++# ++# Other I2C/SMBus bus drivers ++# ++# CONFIG_I2C_VIRTIO is not set ++# end of I2C Hardware Bus support ++ ++CONFIG_I2C_STUB=m ++CONFIG_I2C_SLAVE=y ++CONFIG_I2C_SLAVE_EEPROM=m ++# CONFIG_I2C_SLAVE_TESTUNIT is not set ++# CONFIG_I2C_DEBUG_CORE is not set ++# CONFIG_I2C_DEBUG_ALGO is not set ++# CONFIG_I2C_DEBUG_BUS is not set ++# end of I2C support ++ ++CONFIG_I3C=m ++CONFIG_CDNS_I3C_MASTER=m ++CONFIG_DW_I3C_MASTER=m ++# CONFIG_SVC_I3C_MASTER is not set ++# CONFIG_MIPI_I3C_HCI is not set ++CONFIG_SPI=y ++# CONFIG_SPI_DEBUG is not set ++CONFIG_SPI_MASTER=y ++CONFIG_SPI_MEM=y ++ ++# ++# SPI Master Controller Drivers ++# ++CONFIG_SPI_ALTERA=m ++CONFIG_SPI_ALTERA_CORE=m ++CONFIG_SPI_AXI_SPI_ENGINE=m ++CONFIG_SPI_BITBANG=m ++CONFIG_SPI_CADENCE=m ++# CONFIG_SPI_CADENCE_QUADSPI is not set ++CONFIG_SPI_DESIGNWARE=m ++# CONFIG_SPI_DW_DMA is not set ++CONFIG_SPI_DW_PCI=m ++CONFIG_SPI_DW_MMIO=m ++CONFIG_SPI_NXP_FLEXSPI=m ++CONFIG_SPI_GPIO=m ++CONFIG_SPI_FSL_LIB=m ++CONFIG_SPI_FSL_SPI=m ++CONFIG_SPI_OC_TINY=m ++CONFIG_SPI_PL022=y ++# CONFIG_SPI_PXA2XX is not set ++CONFIG_SPI_ROCKCHIP=y ++# CONFIG_SPI_ROCKCHIP_SFC is not set ++# CONFIG_SPI_SC18IS602 is not set ++# CONFIG_SPI_SIFIVE is not set ++CONFIG_SPI_MXIC=m ++# CONFIG_SPI_THUNDERX is not set ++# CONFIG_SPI_XCOMM is not set ++# CONFIG_SPI_XILINX is not set ++# CONFIG_SPI_ZYNQMP_GQSPI is not set ++# CONFIG_SPI_AMD is not set ++ ++# ++# SPI Multiplexer support ++# ++CONFIG_SPI_MUX=m ++ ++# ++# SPI Protocol Masters ++# ++CONFIG_SPI_SPIDEV=m ++CONFIG_SPI_LOOPBACK_TEST=m ++CONFIG_SPI_TLE62X0=m ++CONFIG_SPI_SLAVE=y ++CONFIG_SPI_SLAVE_TIME=m ++CONFIG_SPI_SLAVE_SYSTEM_CONTROL=m ++CONFIG_SPI_DYNAMIC=y ++CONFIG_SPMI=y ++# CONFIG_SPMI_HISI3670 is not set ++# CONFIG_HSI is not set ++CONFIG_PPS=y ++# CONFIG_PPS_DEBUG is not set ++ ++# ++# PPS clients support ++# ++# CONFIG_PPS_CLIENT_KTIMER is not set ++CONFIG_PPS_CLIENT_LDISC=m ++CONFIG_PPS_CLIENT_GPIO=m ++ ++# ++# PPS generators support ++# ++ ++# ++# PTP clock support ++# ++CONFIG_PTP_1588_CLOCK=m ++CONFIG_PTP_1588_CLOCK_OPTIONAL=m ++CONFIG_DP83640_PHY=m ++CONFIG_PTP_1588_CLOCK_INES=m ++# CONFIG_PTP_1588_CLOCK_KVM is not set ++CONFIG_PTP_1588_CLOCK_IDT82P33=m ++CONFIG_PTP_1588_CLOCK_IDTCM=m ++# CONFIG_PTP_1588_CLOCK_OCP is not set ++# end of PTP clock support ++ ++CONFIG_PINCTRL=y ++CONFIG_GENERIC_PINCTRL_GROUPS=y ++CONFIG_PINMUX=y ++CONFIG_GENERIC_PINMUX_FUNCTIONS=y ++CONFIG_PINCONF=y ++CONFIG_GENERIC_PINCONF=y ++# CONFIG_DEBUG_PINCTRL is not set ++CONFIG_PINCTRL_AS3722=m ++# CONFIG_PINCTRL_MCP23S08 is not set ++CONFIG_PINCTRL_ROCKCHIP=y ++CONFIG_PINCTRL_SINGLE=y ++CONFIG_PINCTRL_SX150X=y ++CONFIG_PINCTRL_STMFX=m ++CONFIG_PINCTRL_MAX77620=y ++CONFIG_PINCTRL_RK805=y ++# CONFIG_PINCTRL_OCELOT is not set ++# CONFIG_PINCTRL_MICROCHIP_SGPIO is not set ++ ++# ++# Renesas pinctrl drivers ++# ++# end of Renesas pinctrl drivers ++ ++CONFIG_GPIOLIB=y ++CONFIG_GPIOLIB_FASTPATH_LIMIT=512 ++CONFIG_OF_GPIO=y ++CONFIG_GPIOLIB_IRQCHIP=y ++# CONFIG_DEBUG_GPIO is not set ++CONFIG_GPIO_SYSFS=y ++CONFIG_GPIO_CDEV=y ++CONFIG_GPIO_CDEV_V1=y ++CONFIG_GPIO_GENERIC=y ++CONFIG_GPIO_MAX730X=m ++ ++# ++# Memory mapped GPIO drivers ++# ++CONFIG_GPIO_74XX_MMIO=m ++CONFIG_GPIO_ALTERA=m ++CONFIG_GPIO_CADENCE=m ++CONFIG_GPIO_DWAPB=y ++CONFIG_GPIO_EXAR=m ++# CONFIG_GPIO_FTGPIO010 is not set ++CONFIG_GPIO_GENERIC_PLATFORM=y ++CONFIG_GPIO_GRGPIO=m ++CONFIG_GPIO_HLWD=m ++CONFIG_GPIO_LOGICVC=m ++CONFIG_GPIO_MB86S7X=m ++CONFIG_GPIO_PL061=y ++CONFIG_GPIO_ROCKCHIP=y ++CONFIG_GPIO_SAMA5D2_PIOBU=m ++# CONFIG_GPIO_SIFIVE is not set ++CONFIG_GPIO_SYSCON=m ++# CONFIG_GPIO_XGENE is not set ++CONFIG_GPIO_XILINX=y ++CONFIG_GPIO_AMD_FCH=m ++# end of Memory mapped GPIO drivers ++ ++# ++# I2C GPIO expanders ++# ++CONFIG_GPIO_ADP5588=m ++CONFIG_GPIO_ADNP=m ++CONFIG_GPIO_GW_PLD=m ++CONFIG_GPIO_MAX7300=m ++CONFIG_GPIO_MAX732X=m ++CONFIG_GPIO_PCA953X=y ++CONFIG_GPIO_PCA953X_IRQ=y ++# CONFIG_GPIO_PCA9570 is not set ++CONFIG_GPIO_PCF857X=m ++CONFIG_GPIO_TPIC2810=m ++# end of I2C GPIO expanders ++ ++# ++# MFD GPIO expanders ++# ++CONFIG_GPIO_ADP5520=m ++CONFIG_GPIO_BD70528=m ++# CONFIG_GPIO_BD71815 is not set ++CONFIG_GPIO_BD71828=m ++CONFIG_GPIO_MAX77620=y ++CONFIG_GPIO_MAX77650=m ++# CONFIG_GPIO_RC5T583 is not set ++CONFIG_GPIO_UCB1400=m ++# end of MFD GPIO expanders ++ ++# ++# PCI GPIO expanders ++# ++# CONFIG_GPIO_BT8XX is not set ++# CONFIG_GPIO_PCI_IDIO_16 is not set ++# CONFIG_GPIO_PCIE_IDIO_24 is not set ++# CONFIG_GPIO_RDC321X is not set ++# end of PCI GPIO expanders ++ ++# ++# SPI GPIO expanders ++# ++CONFIG_GPIO_74X164=m ++CONFIG_GPIO_MAX3191X=m ++CONFIG_GPIO_MAX7301=m ++CONFIG_GPIO_MC33880=m ++CONFIG_GPIO_PISOSR=m ++CONFIG_GPIO_XRA1403=m ++# end of SPI GPIO expanders ++ ++# ++# USB GPIO expanders ++# ++# end of USB GPIO expanders ++ ++# ++# Virtual GPIO drivers ++# ++# CONFIG_GPIO_AGGREGATOR is not set ++# CONFIG_GPIO_MOCKUP is not set ++# CONFIG_GPIO_VIRTIO is not set ++# end of Virtual GPIO drivers ++ ++CONFIG_W1=m ++CONFIG_W1_CON=y ++ ++# ++# 1-wire Bus Masters ++# ++CONFIG_W1_MASTER_MATROX=m ++CONFIG_W1_MASTER_DS2490=m ++CONFIG_W1_MASTER_DS2482=m ++CONFIG_W1_MASTER_DS1WM=m ++CONFIG_W1_MASTER_GPIO=m ++CONFIG_W1_MASTER_SGI=m ++# end of 1-wire Bus Masters ++ ++# ++# 1-wire Slaves ++# ++CONFIG_W1_SLAVE_THERM=m ++CONFIG_W1_SLAVE_SMEM=m ++CONFIG_W1_SLAVE_DS2405=m ++CONFIG_W1_SLAVE_DS2408=m ++CONFIG_W1_SLAVE_DS2408_READBACK=y ++CONFIG_W1_SLAVE_DS2413=m ++CONFIG_W1_SLAVE_DS2406=m ++CONFIG_W1_SLAVE_DS2423=m ++CONFIG_W1_SLAVE_DS2805=m ++CONFIG_W1_SLAVE_DS2430=m ++CONFIG_W1_SLAVE_DS2431=m ++CONFIG_W1_SLAVE_DS2433=m ++# CONFIG_W1_SLAVE_DS2433_CRC is not set ++CONFIG_W1_SLAVE_DS2438=m ++CONFIG_W1_SLAVE_DS250X=m ++CONFIG_W1_SLAVE_DS2780=m ++CONFIG_W1_SLAVE_DS2781=m ++CONFIG_W1_SLAVE_DS28E04=m ++CONFIG_W1_SLAVE_DS28E17=m ++# end of 1-wire Slaves ++ ++CONFIG_POWER_RESET=y ++# CONFIG_POWER_RESET_AS3722 is not set ++CONFIG_POWER_RESET_BRCMSTB=y ++# CONFIG_POWER_RESET_GPIO is not set ++# CONFIG_POWER_RESET_GPIO_RESTART is not set ++# CONFIG_POWER_RESET_LTC2952 is not set ++# CONFIG_POWER_RESET_REGULATOR is not set ++# CONFIG_POWER_RESET_RESTART is not set ++CONFIG_POWER_RESET_VEXPRESS=y ++CONFIG_POWER_RESET_XGENE=y ++CONFIG_POWER_RESET_SYSCON=y ++# CONFIG_POWER_RESET_SYSCON_POWEROFF is not set ++# CONFIG_SYSCON_REBOOT_MODE is not set ++# CONFIG_NVMEM_REBOOT_MODE is not set ++CONFIG_POWER_SUPPLY=y ++# CONFIG_POWER_SUPPLY_DEBUG is not set ++CONFIG_POWER_SUPPLY_HWMON=y ++# CONFIG_PDA_POWER is not set ++CONFIG_GENERIC_ADC_BATTERY=m ++# CONFIG_TEST_POWER is not set ++CONFIG_CHARGER_ADP5061=m ++CONFIG_BATTERY_CW2015=m ++CONFIG_BATTERY_DS2760=m ++CONFIG_BATTERY_DS2780=m ++CONFIG_BATTERY_DS2781=m ++CONFIG_BATTERY_DS2782=m ++CONFIG_BATTERY_SBS=m ++CONFIG_CHARGER_SBS=m ++CONFIG_MANAGER_SBS=m ++CONFIG_BATTERY_BQ27XXX=m ++CONFIG_BATTERY_BQ27XXX_I2C=m ++CONFIG_BATTERY_BQ27XXX_HDQ=m ++# CONFIG_BATTERY_BQ27XXX_DT_UPDATES_NVM is not set ++CONFIG_BATTERY_MAX17040=m ++CONFIG_BATTERY_MAX17042=m ++CONFIG_BATTERY_MAX1721X=m ++CONFIG_CHARGER_ISP1704=m ++# CONFIG_CHARGER_MAX8903 is not set ++# CONFIG_CHARGER_LP8727 is not set ++CONFIG_CHARGER_GPIO=m ++# CONFIG_CHARGER_MANAGER is not set ++CONFIG_CHARGER_LT3651=m ++# CONFIG_CHARGER_LTC4162L is not set ++CONFIG_CHARGER_DETECTOR_MAX14656=m ++CONFIG_CHARGER_MAX77650=m ++# CONFIG_CHARGER_BQ2415X is not set ++# CONFIG_CHARGER_BQ24190 is not set ++# CONFIG_CHARGER_BQ24257 is not set ++# CONFIG_CHARGER_BQ24735 is not set ++# CONFIG_CHARGER_BQ2515X is not set ++# CONFIG_CHARGER_BQ25890 is not set ++# CONFIG_CHARGER_BQ25980 is not set ++# CONFIG_CHARGER_BQ256XX is not set ++# CONFIG_CHARGER_SMB347 is not set ++# CONFIG_BATTERY_GAUGE_LTC2941 is not set ++# CONFIG_BATTERY_GOLDFISH is not set ++# CONFIG_BATTERY_RT5033 is not set ++# CONFIG_CHARGER_RT9455 is not set ++# CONFIG_CHARGER_UCS1002 is not set ++# CONFIG_CHARGER_BD99954 is not set ++# CONFIG_RN5T618_POWER is not set ++CONFIG_HWMON=y ++CONFIG_HWMON_VID=m ++# CONFIG_HWMON_DEBUG_CHIP is not set ++ ++# ++# Native drivers ++# ++CONFIG_SENSORS_AD7314=m ++CONFIG_SENSORS_AD7414=m ++CONFIG_SENSORS_AD7418=m ++CONFIG_SENSORS_ADM1021=m ++CONFIG_SENSORS_ADM1025=m ++CONFIG_SENSORS_ADM1026=m ++CONFIG_SENSORS_ADM1029=m ++CONFIG_SENSORS_ADM1031=m ++CONFIG_SENSORS_ADM1177=m ++CONFIG_SENSORS_ADM9240=m ++CONFIG_SENSORS_ADT7X10=m ++CONFIG_SENSORS_ADT7310=m ++CONFIG_SENSORS_ADT7410=m ++CONFIG_SENSORS_ADT7411=m ++CONFIG_SENSORS_ADT7462=m ++CONFIG_SENSORS_ADT7470=m ++CONFIG_SENSORS_ADT7475=m ++# CONFIG_SENSORS_AHT10 is not set ++# CONFIG_SENSORS_AQUACOMPUTER_D5NEXT is not set ++CONFIG_SENSORS_AS370=m ++CONFIG_SENSORS_ASC7621=m ++CONFIG_SENSORS_AXI_FAN_CONTROL=m ++CONFIG_SENSORS_ARM_SCPI=m ++CONFIG_SENSORS_ASPEED=m ++CONFIG_SENSORS_ATXP1=m ++CONFIG_SENSORS_BT1_PVT=m ++# CONFIG_SENSORS_BT1_PVT_ALARMS is not set ++# CONFIG_SENSORS_CORSAIR_CPRO is not set ++# CONFIG_SENSORS_CORSAIR_PSU is not set ++CONFIG_SENSORS_DRIVETEMP=m ++CONFIG_SENSORS_DS620=m ++CONFIG_SENSORS_DS1621=m ++CONFIG_SENSORS_I5K_AMB=m ++CONFIG_SENSORS_F71805F=m ++CONFIG_SENSORS_F71882FG=m ++CONFIG_SENSORS_F75375S=m ++CONFIG_SENSORS_FTSTEUTATES=m ++CONFIG_SENSORS_GL518SM=m ++CONFIG_SENSORS_GL520SM=m ++CONFIG_SENSORS_G760A=m ++CONFIG_SENSORS_G762=m ++CONFIG_SENSORS_GPIO_FAN=m ++CONFIG_SENSORS_HIH6130=m ++CONFIG_SENSORS_IIO_HWMON=m ++CONFIG_SENSORS_IT87=m ++CONFIG_SENSORS_JC42=m ++CONFIG_SENSORS_POWR1220=m ++CONFIG_SENSORS_LINEAGE=m ++CONFIG_SENSORS_LTC2945=m ++CONFIG_SENSORS_LTC2947=m ++CONFIG_SENSORS_LTC2947_I2C=m ++CONFIG_SENSORS_LTC2947_SPI=m ++CONFIG_SENSORS_LTC2990=m ++# CONFIG_SENSORS_LTC2992 is not set ++CONFIG_SENSORS_LTC4151=m ++CONFIG_SENSORS_LTC4215=m ++CONFIG_SENSORS_LTC4222=m ++CONFIG_SENSORS_LTC4245=m ++CONFIG_SENSORS_LTC4260=m ++CONFIG_SENSORS_LTC4261=m ++CONFIG_SENSORS_MAX1111=m ++# CONFIG_SENSORS_MAX127 is not set ++CONFIG_SENSORS_MAX16065=m ++CONFIG_SENSORS_MAX1619=m ++CONFIG_SENSORS_MAX1668=m ++CONFIG_SENSORS_MAX197=m ++CONFIG_SENSORS_MAX31722=m ++CONFIG_SENSORS_MAX31730=m ++CONFIG_SENSORS_MAX6621=m ++CONFIG_SENSORS_MAX6639=m ++CONFIG_SENSORS_MAX6642=m ++CONFIG_SENSORS_MAX6650=m ++CONFIG_SENSORS_MAX6697=m ++CONFIG_SENSORS_MAX31790=m ++CONFIG_SENSORS_MCP3021=m ++CONFIG_SENSORS_TC654=m ++# CONFIG_SENSORS_TPS23861 is not set ++# CONFIG_SENSORS_MR75203 is not set ++CONFIG_SENSORS_ADCXX=m ++CONFIG_SENSORS_LM63=m ++CONFIG_SENSORS_LM70=m ++CONFIG_SENSORS_LM73=m ++CONFIG_SENSORS_LM75=m ++CONFIG_SENSORS_LM77=m ++CONFIG_SENSORS_LM78=m ++CONFIG_SENSORS_LM80=m ++CONFIG_SENSORS_LM83=m ++CONFIG_SENSORS_LM85=m ++CONFIG_SENSORS_LM87=m ++CONFIG_SENSORS_LM90=m ++CONFIG_SENSORS_LM92=m ++CONFIG_SENSORS_LM93=m ++CONFIG_SENSORS_LM95234=m ++CONFIG_SENSORS_LM95241=m ++CONFIG_SENSORS_LM95245=m ++CONFIG_SENSORS_PC87360=m ++CONFIG_SENSORS_PC87427=m ++CONFIG_SENSORS_NTC_THERMISTOR=m ++CONFIG_SENSORS_NCT6683=m ++CONFIG_SENSORS_NCT6775=m ++CONFIG_SENSORS_NCT7802=m ++CONFIG_SENSORS_NCT7904=m ++CONFIG_SENSORS_NPCM7XX=m ++# CONFIG_SENSORS_NZXT_KRAKEN2 is not set ++CONFIG_SENSORS_OCC_P8_I2C=m ++CONFIG_SENSORS_OCC=m ++CONFIG_SENSORS_PCF8591=m ++CONFIG_PMBUS=m ++CONFIG_SENSORS_PMBUS=m ++# CONFIG_SENSORS_ADM1266 is not set ++CONFIG_SENSORS_ADM1275=m ++CONFIG_SENSORS_BEL_PFE=m ++# CONFIG_SENSORS_BPA_RS600 is not set ++# CONFIG_SENSORS_FSP_3Y is not set ++CONFIG_SENSORS_IBM_CFFPS=m ++# CONFIG_SENSORS_DPS920AB is not set ++CONFIG_SENSORS_INSPUR_IPSPS=m ++CONFIG_SENSORS_IR35221=m ++# CONFIG_SENSORS_IR36021 is not set ++CONFIG_SENSORS_IR38064=m ++CONFIG_SENSORS_IRPS5401=m ++CONFIG_SENSORS_ISL68137=m ++CONFIG_SENSORS_LM25066=m ++CONFIG_SENSORS_LTC2978=m ++CONFIG_SENSORS_LTC2978_REGULATOR=y ++CONFIG_SENSORS_LTC3815=m ++# CONFIG_SENSORS_MAX15301 is not set ++CONFIG_SENSORS_MAX16064=m ++# CONFIG_SENSORS_MAX16601 is not set ++CONFIG_SENSORS_MAX20730=m ++CONFIG_SENSORS_MAX20751=m ++CONFIG_SENSORS_MAX31785=m ++CONFIG_SENSORS_MAX34440=m ++CONFIG_SENSORS_MAX8688=m ++# CONFIG_SENSORS_MP2888 is not set ++# CONFIG_SENSORS_MP2975 is not set ++# CONFIG_SENSORS_PIM4328 is not set ++# CONFIG_SENSORS_PM6764TR is not set ++CONFIG_SENSORS_PXE1610=m ++# CONFIG_SENSORS_Q54SJ108A2 is not set ++# CONFIG_SENSORS_STPDDC60 is not set ++CONFIG_SENSORS_TPS40422=m ++CONFIG_SENSORS_TPS53679=m ++CONFIG_SENSORS_UCD9000=m ++CONFIG_SENSORS_UCD9200=m ++CONFIG_SENSORS_XDPE122=m ++CONFIG_SENSORS_ZL6100=m ++CONFIG_SENSORS_PWM_FAN=m ++# CONFIG_SENSORS_SBTSI is not set ++# CONFIG_SENSORS_SBRMI is not set ++CONFIG_SENSORS_SHT15=m ++CONFIG_SENSORS_SHT21=m ++CONFIG_SENSORS_SHT3x=m ++# CONFIG_SENSORS_SHT4x is not set ++CONFIG_SENSORS_SHTC1=m ++CONFIG_SENSORS_SIS5595=m ++CONFIG_SENSORS_DME1737=m ++CONFIG_SENSORS_EMC1403=m ++CONFIG_SENSORS_EMC2103=m ++CONFIG_SENSORS_EMC6W201=m ++CONFIG_SENSORS_SMSC47M1=m ++CONFIG_SENSORS_SMSC47M192=m ++CONFIG_SENSORS_SMSC47B397=m ++CONFIG_SENSORS_SCH56XX_COMMON=m ++CONFIG_SENSORS_SCH5627=m ++CONFIG_SENSORS_SCH5636=m ++CONFIG_SENSORS_STTS751=m ++CONFIG_SENSORS_SMM665=m ++CONFIG_SENSORS_ADC128D818=m ++CONFIG_SENSORS_ADS7828=m ++CONFIG_SENSORS_ADS7871=m ++CONFIG_SENSORS_AMC6821=m ++CONFIG_SENSORS_INA209=m ++CONFIG_SENSORS_INA2XX=m ++CONFIG_SENSORS_INA3221=m ++CONFIG_SENSORS_TC74=m ++CONFIG_SENSORS_THMC50=m ++CONFIG_SENSORS_TMP102=m ++CONFIG_SENSORS_TMP103=m ++CONFIG_SENSORS_TMP108=m ++CONFIG_SENSORS_TMP401=m ++CONFIG_SENSORS_TMP421=m ++CONFIG_SENSORS_TMP513=m ++CONFIG_SENSORS_VEXPRESS=m ++CONFIG_SENSORS_VIA686A=m ++CONFIG_SENSORS_VT1211=m ++CONFIG_SENSORS_VT8231=m ++CONFIG_SENSORS_W83773G=m ++CONFIG_SENSORS_W83781D=m ++CONFIG_SENSORS_W83791D=m ++CONFIG_SENSORS_W83792D=m ++CONFIG_SENSORS_W83793=m ++CONFIG_SENSORS_W83795=m ++# CONFIG_SENSORS_W83795_FANCTRL is not set ++CONFIG_SENSORS_W83L785TS=m ++CONFIG_SENSORS_W83L786NG=m ++CONFIG_SENSORS_W83627HF=m ++CONFIG_SENSORS_W83627EHF=m ++CONFIG_THERMAL=y ++# CONFIG_THERMAL_NETLINK is not set ++CONFIG_THERMAL_STATISTICS=y ++CONFIG_THERMAL_EMERGENCY_POWEROFF_DELAY_MS=0 ++CONFIG_THERMAL_HWMON=y ++CONFIG_THERMAL_OF=y ++CONFIG_THERMAL_WRITABLE_TRIPS=y ++CONFIG_THERMAL_DEFAULT_GOV_STEP_WISE=y ++# CONFIG_THERMAL_DEFAULT_GOV_FAIR_SHARE is not set ++# CONFIG_THERMAL_DEFAULT_GOV_USER_SPACE is not set ++CONFIG_THERMAL_GOV_FAIR_SHARE=y ++CONFIG_THERMAL_GOV_STEP_WISE=y ++CONFIG_THERMAL_GOV_BANG_BANG=y ++CONFIG_THERMAL_GOV_USER_SPACE=y ++CONFIG_CPU_THERMAL=y ++CONFIG_CPU_FREQ_THERMAL=y ++CONFIG_DEVFREQ_THERMAL=y ++CONFIG_THERMAL_EMULATION=y ++CONFIG_THERMAL_MMIO=m ++# CONFIG_MAX77620_THERMAL is not set ++CONFIG_ROCKCHIP_THERMAL=y ++# CONFIG_GENERIC_ADC_THERMAL is not set ++CONFIG_WATCHDOG=y ++CONFIG_WATCHDOG_CORE=y ++# CONFIG_WATCHDOG_NOWAYOUT is not set ++CONFIG_WATCHDOG_HANDLE_BOOT_ENABLED=y ++CONFIG_WATCHDOG_OPEN_TIMEOUT=0 ++CONFIG_WATCHDOG_SYSFS=y ++# CONFIG_WATCHDOG_HRTIMER_PRETIMEOUT is not set ++ ++# ++# Watchdog Pretimeout Governors ++# ++# CONFIG_WATCHDOG_PRETIMEOUT_GOV is not set ++ ++# ++# Watchdog Device Drivers ++# ++CONFIG_SOFT_WATCHDOG=m ++# CONFIG_GPIO_WATCHDOG is not set ++# CONFIG_XILINX_WATCHDOG is not set ++# CONFIG_ZIIRAVE_WATCHDOG is not set ++# CONFIG_ARM_SP805_WATCHDOG is not set ++# CONFIG_ARM_SBSA_WATCHDOG is not set ++# CONFIG_CADENCE_WATCHDOG is not set ++CONFIG_DW_WATCHDOG=y ++# CONFIG_RN5T618_WATCHDOG is not set ++# CONFIG_MAX63XX_WATCHDOG is not set ++# CONFIG_MAX77620_WATCHDOG is not set ++# CONFIG_ARM_SMC_WATCHDOG is not set ++# CONFIG_ALIM7101_WDT is not set ++# CONFIG_I6300ESB_WDT is not set ++# CONFIG_MEN_A21_WDT is not set ++ ++# ++# PCI-based Watchdog Cards ++# ++# CONFIG_PCIPCWATCHDOG is not set ++# CONFIG_WDTPCI is not set ++ ++# ++# USB-based Watchdog Cards ++# ++# CONFIG_USBPCWATCHDOG is not set ++CONFIG_SSB_POSSIBLE=y ++CONFIG_SSB=y ++CONFIG_SSB_SPROM=y ++CONFIG_SSB_BLOCKIO=y ++CONFIG_SSB_PCIHOST_POSSIBLE=y ++CONFIG_SSB_PCIHOST=y ++CONFIG_SSB_B43_PCI_BRIDGE=y ++CONFIG_SSB_SDIOHOST_POSSIBLE=y ++# CONFIG_SSB_SDIOHOST is not set ++CONFIG_SSB_DRIVER_PCICORE_POSSIBLE=y ++CONFIG_SSB_DRIVER_PCICORE=y ++# CONFIG_SSB_DRIVER_GPIO is not set ++CONFIG_BCMA_POSSIBLE=y ++CONFIG_BCMA=m ++CONFIG_BCMA_BLOCKIO=y ++CONFIG_BCMA_HOST_PCI_POSSIBLE=y ++CONFIG_BCMA_HOST_PCI=y ++# CONFIG_BCMA_HOST_SOC is not set ++CONFIG_BCMA_DRIVER_PCI=y ++# CONFIG_BCMA_DRIVER_GMAC_CMN is not set ++# CONFIG_BCMA_DRIVER_GPIO is not set ++# CONFIG_BCMA_DEBUG is not set ++ ++# ++# Multifunction device drivers ++# ++CONFIG_MFD_CORE=y ++# CONFIG_MFD_ACT8945A is not set ++CONFIG_MFD_AS3711=y ++CONFIG_MFD_AS3722=m ++CONFIG_PMIC_ADP5520=y ++CONFIG_MFD_AAT2870_CORE=y ++# CONFIG_MFD_ATMEL_FLEXCOM is not set ++# CONFIG_MFD_ATMEL_HLCDC is not set ++# CONFIG_MFD_BCM590XX is not set ++# CONFIG_MFD_BD9571MWV is not set ++# CONFIG_MFD_AXP20X_I2C is not set ++# CONFIG_MFD_MADERA is not set ++# CONFIG_PMIC_DA903X is not set ++# CONFIG_MFD_DA9052_SPI is not set ++# CONFIG_MFD_DA9052_I2C is not set ++# CONFIG_MFD_DA9055 is not set ++# CONFIG_MFD_DA9062 is not set ++# CONFIG_MFD_DA9063 is not set ++# CONFIG_MFD_DA9150 is not set ++# CONFIG_MFD_DLN2 is not set ++# CONFIG_MFD_GATEWORKS_GSC is not set ++# CONFIG_MFD_MC13XXX_SPI is not set ++# CONFIG_MFD_MC13XXX_I2C is not set ++# CONFIG_MFD_MP2629 is not set ++# CONFIG_MFD_HI6421_PMIC is not set ++# CONFIG_MFD_HI6421_SPMI is not set ++# CONFIG_HTC_PASIC3 is not set ++# CONFIG_HTC_I2CPLD is not set ++# CONFIG_LPC_ICH is not set ++# CONFIG_LPC_SCH is not set ++# CONFIG_MFD_INTEL_PMT is not set ++CONFIG_MFD_IQS62X=m ++# CONFIG_MFD_JANZ_CMODIO is not set ++# CONFIG_MFD_KEMPLD is not set ++# CONFIG_MFD_88PM800 is not set ++# CONFIG_MFD_88PM805 is not set ++# CONFIG_MFD_88PM860X is not set ++# CONFIG_MFD_MAX14577 is not set ++CONFIG_MFD_MAX77620=y ++CONFIG_MFD_MAX77650=m ++# CONFIG_MFD_MAX77686 is not set ++# CONFIG_MFD_MAX77693 is not set ++# CONFIG_MFD_MAX77843 is not set ++# CONFIG_MFD_MAX8907 is not set ++# CONFIG_MFD_MAX8925 is not set ++# CONFIG_MFD_MAX8997 is not set ++# CONFIG_MFD_MAX8998 is not set ++# CONFIG_MFD_MT6360 is not set ++# CONFIG_MFD_MT6397 is not set ++# CONFIG_MFD_MENF21BMC is not set ++# CONFIG_EZX_PCAP is not set ++# CONFIG_MFD_CPCAP is not set ++# CONFIG_MFD_VIPERBOARD is not set ++# CONFIG_MFD_NTXEC is not set ++# CONFIG_MFD_RETU is not set ++# CONFIG_MFD_PCF50633 is not set ++CONFIG_UCB1400_CORE=m ++CONFIG_MFD_RDC321X=m ++# CONFIG_MFD_RT4831 is not set ++CONFIG_MFD_RT5033=m ++CONFIG_MFD_RC5T583=y ++CONFIG_MFD_RK808=y ++CONFIG_MFD_RN5T618=m ++# CONFIG_MFD_SEC_CORE is not set ++# CONFIG_MFD_SI476X_CORE is not set ++# CONFIG_MFD_SM501 is not set ++# CONFIG_MFD_SKY81452 is not set ++# CONFIG_MFD_STMPE is not set ++CONFIG_MFD_SYSCON=y ++# CONFIG_MFD_TI_AM335X_TSCADC is not set ++# CONFIG_MFD_LP3943 is not set ++# CONFIG_MFD_LP8788 is not set ++# CONFIG_MFD_TI_LMU is not set ++# CONFIG_MFD_PALMAS is not set ++# CONFIG_TPS6105X is not set ++# CONFIG_TPS65010 is not set ++# CONFIG_TPS6507X is not set ++# CONFIG_MFD_TPS65086 is not set ++# CONFIG_MFD_TPS65090 is not set ++# CONFIG_MFD_TPS65217 is not set ++# CONFIG_MFD_TI_LP873X is not set ++# CONFIG_MFD_TI_LP87565 is not set ++# CONFIG_MFD_TPS65218 is not set ++# CONFIG_MFD_TPS6586X is not set ++# CONFIG_MFD_TPS65910 is not set ++# CONFIG_MFD_TPS65912_I2C is not set ++# CONFIG_MFD_TPS65912_SPI is not set ++# CONFIG_MFD_TPS80031 is not set ++# CONFIG_TWL4030_CORE is not set ++# CONFIG_TWL6040_CORE is not set ++CONFIG_MFD_WL1273_CORE=m ++CONFIG_MFD_LM3533=m ++# CONFIG_MFD_TC3589X is not set ++# CONFIG_MFD_TQMX86 is not set ++# CONFIG_MFD_VX855 is not set ++# CONFIG_MFD_LOCHNAGAR is not set ++# CONFIG_MFD_ARIZONA_I2C is not set ++# CONFIG_MFD_ARIZONA_SPI is not set ++# CONFIG_MFD_WM8400 is not set ++# CONFIG_MFD_WM831X_I2C is not set ++# CONFIG_MFD_WM831X_SPI is not set ++# CONFIG_MFD_WM8350_I2C is not set ++# CONFIG_MFD_WM8994 is not set ++# CONFIG_MFD_ROHM_BD718XX is not set ++CONFIG_MFD_ROHM_BD70528=m ++CONFIG_MFD_ROHM_BD71828=m ++# CONFIG_MFD_ROHM_BD957XMUF is not set ++# CONFIG_MFD_STPMIC1 is not set ++CONFIG_MFD_STMFX=m ++# CONFIG_MFD_ATC260X_I2C is not set ++# CONFIG_MFD_KHADAS_MCU is not set ++# CONFIG_MFD_QCOM_PM8008 is not set ++CONFIG_MFD_VEXPRESS_SYSREG=y ++# CONFIG_RAVE_SP_CORE is not set ++# CONFIG_MFD_INTEL_M10_BMC is not set ++# CONFIG_MFD_RSMU_I2C is not set ++# CONFIG_MFD_RSMU_SPI is not set ++# end of Multifunction device drivers ++ ++CONFIG_REGULATOR=y ++# CONFIG_REGULATOR_DEBUG is not set ++CONFIG_REGULATOR_FIXED_VOLTAGE=y ++# CONFIG_REGULATOR_VIRTUAL_CONSUMER is not set ++# CONFIG_REGULATOR_USERSPACE_CONSUMER is not set ++CONFIG_REGULATOR_88PG86X=m ++# CONFIG_REGULATOR_ACT8865 is not set ++# CONFIG_REGULATOR_AD5398 is not set ++CONFIG_REGULATOR_AAT2870=m ++CONFIG_REGULATOR_AS3711=m ++CONFIG_REGULATOR_AS3722=m ++# CONFIG_REGULATOR_BD71815 is not set ++CONFIG_REGULATOR_BD71828=m ++# CONFIG_REGULATOR_DA9121 is not set ++# CONFIG_REGULATOR_DA9210 is not set ++# CONFIG_REGULATOR_DA9211 is not set ++CONFIG_REGULATOR_FAN53555=y ++# CONFIG_REGULATOR_FAN53880 is not set ++CONFIG_REGULATOR_GPIO=y ++# CONFIG_REGULATOR_ISL9305 is not set ++# CONFIG_REGULATOR_ISL6271A is not set ++# CONFIG_REGULATOR_LP3971 is not set ++# CONFIG_REGULATOR_LP3972 is not set ++# CONFIG_REGULATOR_LP872X is not set ++# CONFIG_REGULATOR_LP8755 is not set ++# CONFIG_REGULATOR_LTC3589 is not set ++# CONFIG_REGULATOR_LTC3676 is not set ++# CONFIG_REGULATOR_MAX1586 is not set ++CONFIG_REGULATOR_MAX77620=y ++CONFIG_REGULATOR_MAX77650=m ++# CONFIG_REGULATOR_MAX8649 is not set ++# CONFIG_REGULATOR_MAX8660 is not set ++# CONFIG_REGULATOR_MAX8893 is not set ++# CONFIG_REGULATOR_MAX8952 is not set ++# CONFIG_REGULATOR_MAX8973 is not set ++# CONFIG_REGULATOR_MAX77826 is not set ++CONFIG_REGULATOR_MCP16502=m ++CONFIG_REGULATOR_MP5416=m ++CONFIG_REGULATOR_MP8859=m ++CONFIG_REGULATOR_MP886X=m ++CONFIG_REGULATOR_MPQ7920=m ++# CONFIG_REGULATOR_MT6311 is not set ++# CONFIG_REGULATOR_MT6315 is not set ++# CONFIG_REGULATOR_PCA9450 is not set ++# CONFIG_REGULATOR_PF8X00 is not set ++# CONFIG_REGULATOR_PFUZE100 is not set ++# CONFIG_REGULATOR_PV88060 is not set ++# CONFIG_REGULATOR_PV88080 is not set ++# CONFIG_REGULATOR_PV88090 is not set ++CONFIG_REGULATOR_PWM=y ++CONFIG_REGULATOR_QCOM_SPMI=y ++# CONFIG_REGULATOR_QCOM_USB_VBUS is not set ++# CONFIG_REGULATOR_RASPBERRYPI_TOUCHSCREEN_ATTINY is not set ++CONFIG_REGULATOR_RC5T583=m ++CONFIG_REGULATOR_RK808=y ++CONFIG_REGULATOR_RN5T618=m ++CONFIG_REGULATOR_ROHM=m ++# CONFIG_REGULATOR_RT4801 is not set ++CONFIG_REGULATOR_RT5033=m ++# CONFIG_REGULATOR_RT6160 is not set ++# CONFIG_REGULATOR_RT6245 is not set ++# CONFIG_REGULATOR_RTQ2134 is not set ++# CONFIG_REGULATOR_RTMV20 is not set ++# CONFIG_REGULATOR_RTQ6752 is not set ++CONFIG_REGULATOR_SLG51000=m ++# CONFIG_REGULATOR_SY8106A is not set ++CONFIG_REGULATOR_SY8824X=m ++# CONFIG_REGULATOR_SY8827N is not set ++# CONFIG_REGULATOR_TPS51632 is not set ++# CONFIG_REGULATOR_TPS62360 is not set ++# CONFIG_REGULATOR_TPS65023 is not set ++# CONFIG_REGULATOR_TPS6507X is not set ++# CONFIG_REGULATOR_TPS65132 is not set ++# CONFIG_REGULATOR_TPS6524X is not set ++# CONFIG_REGULATOR_VCTRL is not set ++# CONFIG_REGULATOR_VEXPRESS is not set ++# CONFIG_REGULATOR_QCOM_LABIBB is not set ++CONFIG_RC_CORE=m ++CONFIG_RC_MAP=m ++CONFIG_LIRC=y ++CONFIG_RC_DECODERS=y ++CONFIG_IR_NEC_DECODER=m ++CONFIG_IR_RC5_DECODER=m ++CONFIG_IR_RC6_DECODER=m ++CONFIG_IR_JVC_DECODER=m ++CONFIG_IR_SONY_DECODER=m ++CONFIG_IR_SANYO_DECODER=m ++CONFIG_IR_SHARP_DECODER=m ++CONFIG_IR_MCE_KBD_DECODER=m ++CONFIG_IR_XMP_DECODER=m ++CONFIG_IR_IMON_DECODER=m ++CONFIG_IR_RCMM_DECODER=m ++CONFIG_RC_DEVICES=y ++CONFIG_RC_ATI_REMOTE=m ++CONFIG_IR_HIX5HD2=m ++CONFIG_IR_IMON=m ++CONFIG_IR_IMON_RAW=m ++CONFIG_IR_MCEUSB=m ++CONFIG_IR_REDRAT3=m ++CONFIG_IR_SPI=m ++CONFIG_IR_STREAMZAP=m ++CONFIG_IR_IGORPLUGUSB=m ++CONFIG_IR_IGUANA=m ++CONFIG_IR_TTUSBIR=m ++CONFIG_RC_LOOPBACK=m ++CONFIG_IR_GPIO_CIR=m ++CONFIG_IR_GPIO_TX=m ++CONFIG_IR_PWM_TX=m ++CONFIG_IR_SERIAL=m ++CONFIG_IR_SERIAL_TRANSMITTER=y ++CONFIG_IR_SIR=m ++CONFIG_RC_XBOX_DVD=m ++# CONFIG_IR_TOY is not set ++CONFIG_CEC_CORE=y ++CONFIG_CEC_NOTIFIER=y ++CONFIG_MEDIA_CEC_SUPPORT=y ++# CONFIG_CEC_CH7322 is not set ++# CONFIG_CEC_GPIO is not set ++CONFIG_USB_PULSE8_CEC=m ++CONFIG_USB_RAINSHADOW_CEC=m ++CONFIG_MEDIA_SUPPORT=m ++# CONFIG_MEDIA_SUPPORT_FILTER is not set ++CONFIG_MEDIA_SUBDRV_AUTOSELECT=y ++ ++# ++# Media device types ++# ++CONFIG_MEDIA_CAMERA_SUPPORT=y ++CONFIG_MEDIA_ANALOG_TV_SUPPORT=y ++CONFIG_MEDIA_DIGITAL_TV_SUPPORT=y ++CONFIG_MEDIA_RADIO_SUPPORT=y ++CONFIG_MEDIA_SDR_SUPPORT=y ++CONFIG_MEDIA_PLATFORM_SUPPORT=y ++CONFIG_MEDIA_TEST_SUPPORT=y ++# end of Media device types ++ ++# ++# Media core support ++# ++CONFIG_VIDEO_DEV=m ++CONFIG_MEDIA_CONTROLLER=y ++CONFIG_DVB_CORE=m ++# end of Media core support ++ ++# ++# Video4Linux options ++# ++CONFIG_VIDEO_V4L2=m ++CONFIG_VIDEO_V4L2_I2C=y ++CONFIG_VIDEO_V4L2_SUBDEV_API=y ++# CONFIG_VIDEO_ADV_DEBUG is not set ++CONFIG_VIDEO_FIXED_MINOR_RANGES=y ++CONFIG_VIDEO_TUNER=m ++CONFIG_V4L2_H264=m ++CONFIG_V4L2_MEM2MEM_DEV=m ++CONFIG_V4L2_FWNODE=m ++CONFIG_V4L2_ASYNC=m ++CONFIG_VIDEOBUF_GEN=m ++CONFIG_VIDEOBUF_VMALLOC=m ++# end of Video4Linux options ++ ++# ++# Media controller options ++# ++CONFIG_MEDIA_CONTROLLER_DVB=y ++CONFIG_MEDIA_CONTROLLER_REQUEST_API=y ++ ++# ++# Please notice that the enabled Media controller Request API is EXPERIMENTAL ++# ++# end of Media controller options ++ ++# ++# Digital TV options ++# ++CONFIG_DVB_MMAP=y ++CONFIG_DVB_NET=y ++CONFIG_DVB_MAX_ADAPTERS=8 ++CONFIG_DVB_DYNAMIC_MINORS=y ++# CONFIG_DVB_DEMUX_SECTION_LOSS_LOG is not set ++# CONFIG_DVB_ULE_DEBUG is not set ++# end of Digital TV options ++ ++# ++# Media drivers ++# ++CONFIG_MEDIA_USB_SUPPORT=y ++ ++# ++# Webcam devices ++# ++CONFIG_USB_VIDEO_CLASS=m ++CONFIG_USB_VIDEO_CLASS_INPUT_EVDEV=y ++CONFIG_USB_GSPCA=m ++CONFIG_USB_M5602=m ++CONFIG_USB_STV06XX=m ++CONFIG_USB_GL860=m ++CONFIG_USB_GSPCA_BENQ=m ++CONFIG_USB_GSPCA_CONEX=m ++CONFIG_USB_GSPCA_CPIA1=m ++CONFIG_USB_GSPCA_DTCS033=m ++CONFIG_USB_GSPCA_ETOMS=m ++CONFIG_USB_GSPCA_FINEPIX=m ++CONFIG_USB_GSPCA_JEILINJ=m ++CONFIG_USB_GSPCA_JL2005BCD=m ++CONFIG_USB_GSPCA_KINECT=m ++CONFIG_USB_GSPCA_KONICA=m ++CONFIG_USB_GSPCA_MARS=m ++CONFIG_USB_GSPCA_MR97310A=m ++CONFIG_USB_GSPCA_NW80X=m ++CONFIG_USB_GSPCA_OV519=m ++CONFIG_USB_GSPCA_OV534=m ++CONFIG_USB_GSPCA_OV534_9=m ++CONFIG_USB_GSPCA_PAC207=m ++CONFIG_USB_GSPCA_PAC7302=m ++CONFIG_USB_GSPCA_PAC7311=m ++CONFIG_USB_GSPCA_SE401=m ++CONFIG_USB_GSPCA_SN9C2028=m ++CONFIG_USB_GSPCA_SN9C20X=m ++CONFIG_USB_GSPCA_SONIXB=m ++CONFIG_USB_GSPCA_SONIXJ=m ++CONFIG_USB_GSPCA_SPCA500=m ++CONFIG_USB_GSPCA_SPCA501=m ++CONFIG_USB_GSPCA_SPCA505=m ++CONFIG_USB_GSPCA_SPCA506=m ++CONFIG_USB_GSPCA_SPCA508=m ++CONFIG_USB_GSPCA_SPCA561=m ++CONFIG_USB_GSPCA_SPCA1528=m ++CONFIG_USB_GSPCA_SQ905=m ++CONFIG_USB_GSPCA_SQ905C=m ++CONFIG_USB_GSPCA_SQ930X=m ++CONFIG_USB_GSPCA_STK014=m ++CONFIG_USB_GSPCA_STK1135=m ++CONFIG_USB_GSPCA_STV0680=m ++CONFIG_USB_GSPCA_SUNPLUS=m ++CONFIG_USB_GSPCA_T613=m ++CONFIG_USB_GSPCA_TOPRO=m ++CONFIG_USB_GSPCA_TOUPTEK=m ++CONFIG_USB_GSPCA_TV8532=m ++CONFIG_USB_GSPCA_VC032X=m ++CONFIG_USB_GSPCA_VICAM=m ++CONFIG_USB_GSPCA_XIRLINK_CIT=m ++CONFIG_USB_GSPCA_ZC3XX=m ++CONFIG_USB_PWC=m ++# CONFIG_USB_PWC_DEBUG is not set ++CONFIG_USB_PWC_INPUT_EVDEV=y ++CONFIG_VIDEO_CPIA2=m ++CONFIG_USB_ZR364XX=m ++CONFIG_USB_STKWEBCAM=m ++CONFIG_USB_S2255=m ++CONFIG_VIDEO_USBTV=m ++ ++# ++# Analog TV USB devices ++# ++CONFIG_VIDEO_PVRUSB2=m ++CONFIG_VIDEO_PVRUSB2_SYSFS=y ++CONFIG_VIDEO_PVRUSB2_DVB=y ++# CONFIG_VIDEO_PVRUSB2_DEBUGIFC is not set ++CONFIG_VIDEO_HDPVR=m ++CONFIG_VIDEO_STK1160_COMMON=m ++CONFIG_VIDEO_STK1160=m ++CONFIG_VIDEO_GO7007=m ++CONFIG_VIDEO_GO7007_USB=m ++CONFIG_VIDEO_GO7007_LOADER=m ++CONFIG_VIDEO_GO7007_USB_S2250_BOARD=m ++ ++# ++# Analog/digital TV USB devices ++# ++CONFIG_VIDEO_AU0828=m ++CONFIG_VIDEO_AU0828_V4L2=y ++CONFIG_VIDEO_AU0828_RC=y ++CONFIG_VIDEO_CX231XX=m ++CONFIG_VIDEO_CX231XX_RC=y ++CONFIG_VIDEO_CX231XX_ALSA=m ++CONFIG_VIDEO_CX231XX_DVB=m ++CONFIG_VIDEO_TM6000=m ++CONFIG_VIDEO_TM6000_ALSA=m ++CONFIG_VIDEO_TM6000_DVB=m ++ ++# ++# Digital TV USB devices ++# ++CONFIG_DVB_USB=m ++# CONFIG_DVB_USB_DEBUG is not set ++CONFIG_DVB_USB_DIB3000MC=m ++CONFIG_DVB_USB_A800=m ++CONFIG_DVB_USB_DIBUSB_MB=m ++CONFIG_DVB_USB_DIBUSB_MB_FAULTY=y ++CONFIG_DVB_USB_DIBUSB_MC=m ++CONFIG_DVB_USB_DIB0700=m ++CONFIG_DVB_USB_UMT_010=m ++CONFIG_DVB_USB_CXUSB=m ++# CONFIG_DVB_USB_CXUSB_ANALOG is not set ++CONFIG_DVB_USB_M920X=m ++CONFIG_DVB_USB_DIGITV=m ++CONFIG_DVB_USB_VP7045=m ++CONFIG_DVB_USB_VP702X=m ++CONFIG_DVB_USB_GP8PSK=m ++CONFIG_DVB_USB_NOVA_T_USB2=m ++CONFIG_DVB_USB_TTUSB2=m ++CONFIG_DVB_USB_DTT200U=m ++CONFIG_DVB_USB_OPERA1=m ++CONFIG_DVB_USB_AF9005=m ++CONFIG_DVB_USB_AF9005_REMOTE=m ++CONFIG_DVB_USB_PCTV452E=m ++CONFIG_DVB_USB_DW2102=m ++CONFIG_DVB_USB_CINERGY_T2=m ++CONFIG_DVB_USB_DTV5100=m ++CONFIG_DVB_USB_AZ6027=m ++CONFIG_DVB_USB_TECHNISAT_USB2=m ++CONFIG_DVB_USB_V2=m ++CONFIG_DVB_USB_AF9015=m ++CONFIG_DVB_USB_AF9035=m ++CONFIG_DVB_USB_ANYSEE=m ++CONFIG_DVB_USB_AU6610=m ++CONFIG_DVB_USB_AZ6007=m ++CONFIG_DVB_USB_CE6230=m ++CONFIG_DVB_USB_EC168=m ++CONFIG_DVB_USB_GL861=m ++CONFIG_DVB_USB_LME2510=m ++CONFIG_DVB_USB_MXL111SF=m ++CONFIG_DVB_USB_RTL28XXU=m ++CONFIG_DVB_USB_DVBSKY=m ++CONFIG_DVB_USB_ZD1301=m ++CONFIG_DVB_TTUSB_BUDGET=m ++CONFIG_DVB_TTUSB_DEC=m ++CONFIG_SMS_USB_DRV=m ++CONFIG_DVB_B2C2_FLEXCOP_USB=m ++# CONFIG_DVB_B2C2_FLEXCOP_USB_DEBUG is not set ++CONFIG_DVB_AS102=m ++ ++# ++# Webcam, TV (analog/digital) USB devices ++# ++CONFIG_VIDEO_EM28XX=m ++CONFIG_VIDEO_EM28XX_V4L2=m ++CONFIG_VIDEO_EM28XX_ALSA=m ++CONFIG_VIDEO_EM28XX_DVB=m ++CONFIG_VIDEO_EM28XX_RC=m ++ ++# ++# Software defined radio USB devices ++# ++CONFIG_USB_AIRSPY=m ++CONFIG_USB_HACKRF=m ++CONFIG_USB_MSI2500=m ++# CONFIG_MEDIA_PCI_SUPPORT is not set ++CONFIG_RADIO_ADAPTERS=y ++CONFIG_RADIO_TEA575X=m ++CONFIG_RADIO_SI470X=m ++CONFIG_USB_SI470X=m ++CONFIG_I2C_SI470X=m ++CONFIG_RADIO_SI4713=m ++CONFIG_USB_SI4713=m ++CONFIG_PLATFORM_SI4713=m ++CONFIG_I2C_SI4713=m ++CONFIG_USB_MR800=m ++CONFIG_USB_DSBR=m ++CONFIG_RADIO_MAXIRADIO=m ++CONFIG_RADIO_SHARK=m ++CONFIG_RADIO_SHARK2=m ++CONFIG_USB_KEENE=m ++CONFIG_USB_RAREMONO=m ++CONFIG_USB_MA901=m ++CONFIG_RADIO_TEA5764=m ++CONFIG_RADIO_SAA7706H=m ++CONFIG_RADIO_TEF6862=m ++CONFIG_RADIO_WL1273=m ++CONFIG_MEDIA_COMMON_OPTIONS=y ++ ++# ++# common driver options ++# ++CONFIG_VIDEO_CX2341X=m ++CONFIG_VIDEO_TVEEPROM=m ++CONFIG_TTPCI_EEPROM=m ++CONFIG_CYPRESS_FIRMWARE=m ++CONFIG_VIDEOBUF2_CORE=m ++CONFIG_VIDEOBUF2_V4L2=m ++CONFIG_VIDEOBUF2_MEMOPS=m ++CONFIG_VIDEOBUF2_DMA_CONTIG=m ++CONFIG_VIDEOBUF2_VMALLOC=m ++CONFIG_VIDEOBUF2_DMA_SG=m ++CONFIG_DVB_B2C2_FLEXCOP=m ++CONFIG_SMS_SIANO_MDTV=m ++CONFIG_SMS_SIANO_RC=y ++# CONFIG_SMS_SIANO_DEBUGFS is not set ++# CONFIG_V4L_PLATFORM_DRIVERS is not set ++CONFIG_V4L_MEM2MEM_DRIVERS=y ++# CONFIG_VIDEO_MEM2MEM_DEINTERLACE is not set ++CONFIG_VIDEO_ROCKCHIP_RGA=m ++CONFIG_DVB_PLATFORM_DRIVERS=y ++CONFIG_SDR_PLATFORM_DRIVERS=y ++ ++# ++# MMC/SDIO DVB adapters ++# ++CONFIG_SMS_SDIO_DRV=m ++# CONFIG_V4L_TEST_DRIVERS is not set ++# CONFIG_DVB_TEST_DRIVERS is not set ++# end of Media drivers ++ ++# ++# Media ancillary drivers ++# ++CONFIG_MEDIA_ATTACH=y ++ ++# ++# IR I2C driver auto-selected by 'Autoselect ancillary drivers' ++# ++CONFIG_VIDEO_IR_I2C=m ++ ++# ++# Audio decoders, processors and mixers ++# ++CONFIG_VIDEO_TVAUDIO=m ++CONFIG_VIDEO_TDA7432=m ++CONFIG_VIDEO_TDA9840=m ++CONFIG_VIDEO_TDA1997X=m ++CONFIG_VIDEO_TEA6415C=m ++CONFIG_VIDEO_TEA6420=m ++CONFIG_VIDEO_MSP3400=m ++CONFIG_VIDEO_CS3308=m ++CONFIG_VIDEO_CS5345=m ++CONFIG_VIDEO_CS53L32A=m ++CONFIG_VIDEO_TLV320AIC23B=m ++CONFIG_VIDEO_UDA1342=m ++CONFIG_VIDEO_WM8775=m ++CONFIG_VIDEO_WM8739=m ++CONFIG_VIDEO_VP27SMPX=m ++CONFIG_VIDEO_SONY_BTF_MPX=m ++# end of Audio decoders, processors and mixers ++ ++# ++# RDS decoders ++# ++CONFIG_VIDEO_SAA6588=m ++# end of RDS decoders ++ ++# ++# Video decoders ++# ++CONFIG_VIDEO_ADV7180=m ++CONFIG_VIDEO_ADV7183=m ++CONFIG_VIDEO_ADV748X=m ++CONFIG_VIDEO_ADV7604=m ++CONFIG_VIDEO_ADV7604_CEC=y ++CONFIG_VIDEO_ADV7842=m ++CONFIG_VIDEO_ADV7842_CEC=y ++CONFIG_VIDEO_BT819=m ++CONFIG_VIDEO_BT856=m ++CONFIG_VIDEO_BT866=m ++CONFIG_VIDEO_KS0127=m ++CONFIG_VIDEO_ML86V7667=m ++CONFIG_VIDEO_SAA7110=m ++CONFIG_VIDEO_SAA711X=m ++CONFIG_VIDEO_TC358743=m ++CONFIG_VIDEO_TC358743_CEC=y ++CONFIG_VIDEO_TVP514X=m ++CONFIG_VIDEO_TVP5150=m ++CONFIG_VIDEO_TVP7002=m ++CONFIG_VIDEO_TW2804=m ++CONFIG_VIDEO_TW9903=m ++CONFIG_VIDEO_TW9906=m ++CONFIG_VIDEO_TW9910=m ++CONFIG_VIDEO_VPX3220=m ++# CONFIG_VIDEO_MAX9286 is not set ++ ++# ++# Video and audio decoders ++# ++CONFIG_VIDEO_SAA717X=m ++CONFIG_VIDEO_CX25840=m ++# end of Video decoders ++ ++# ++# Video encoders ++# ++CONFIG_VIDEO_SAA7127=m ++CONFIG_VIDEO_SAA7185=m ++CONFIG_VIDEO_ADV7170=m ++CONFIG_VIDEO_ADV7175=m ++CONFIG_VIDEO_ADV7343=m ++CONFIG_VIDEO_ADV7393=m ++CONFIG_VIDEO_AD9389B=m ++CONFIG_VIDEO_AK881X=m ++CONFIG_VIDEO_THS8200=m ++# end of Video encoders ++ ++# ++# Video improvement chips ++# ++CONFIG_VIDEO_UPD64031A=m ++CONFIG_VIDEO_UPD64083=m ++# end of Video improvement chips ++ ++# ++# Audio/Video compression chips ++# ++CONFIG_VIDEO_SAA6752HS=m ++# end of Audio/Video compression chips ++ ++# ++# SDR tuner chips ++# ++CONFIG_SDR_MAX2175=m ++# end of SDR tuner chips ++ ++# ++# Miscellaneous helper chips ++# ++CONFIG_VIDEO_THS7303=m ++CONFIG_VIDEO_M52790=m ++CONFIG_VIDEO_I2C=m ++CONFIG_VIDEO_ST_MIPID02=m ++# end of Miscellaneous helper chips ++ ++# ++# Camera sensor devices ++# ++CONFIG_VIDEO_APTINA_PLL=m ++CONFIG_VIDEO_HI556=m ++# CONFIG_VIDEO_IMX208 is not set ++CONFIG_VIDEO_IMX214=m ++CONFIG_VIDEO_IMX219=m ++CONFIG_VIDEO_IMX258=m ++CONFIG_VIDEO_IMX274=m ++CONFIG_VIDEO_IMX290=m ++CONFIG_VIDEO_IMX319=m ++# CONFIG_VIDEO_IMX334 is not set ++# CONFIG_VIDEO_IMX335 is not set ++CONFIG_VIDEO_IMX355=m ++# CONFIG_VIDEO_IMX412 is not set ++# CONFIG_VIDEO_OV02A10 is not set ++CONFIG_VIDEO_OV2640=m ++CONFIG_VIDEO_OV2659=m ++CONFIG_VIDEO_OV2680=m ++CONFIG_VIDEO_OV2685=m ++CONFIG_VIDEO_OV5640=m ++CONFIG_VIDEO_OV5645=m ++CONFIG_VIDEO_OV5647=m ++# CONFIG_VIDEO_OV5648 is not set ++CONFIG_VIDEO_OV6650=m ++CONFIG_VIDEO_OV5670=m ++CONFIG_VIDEO_OV5675=m ++CONFIG_VIDEO_OV5695=m ++CONFIG_VIDEO_OV7251=m ++CONFIG_VIDEO_OV772X=m ++CONFIG_VIDEO_OV7640=m ++CONFIG_VIDEO_OV7670=m ++CONFIG_VIDEO_OV7740=m ++CONFIG_VIDEO_OV8856=m ++# CONFIG_VIDEO_OV8865 is not set ++# CONFIG_VIDEO_OV9282 is not set ++CONFIG_VIDEO_OV9640=m ++CONFIG_VIDEO_OV9650=m ++CONFIG_VIDEO_OV13858=m ++CONFIG_VIDEO_VS6624=m ++CONFIG_VIDEO_MT9M001=m ++CONFIG_VIDEO_MT9M032=m ++CONFIG_VIDEO_MT9M111=m ++CONFIG_VIDEO_MT9P031=m ++CONFIG_VIDEO_MT9T001=m ++CONFIG_VIDEO_MT9T112=m ++CONFIG_VIDEO_MT9V011=m ++CONFIG_VIDEO_MT9V032=m ++CONFIG_VIDEO_MT9V111=m ++CONFIG_VIDEO_SR030PC30=m ++CONFIG_VIDEO_NOON010PC30=m ++CONFIG_VIDEO_M5MOLS=m ++# CONFIG_VIDEO_RDACM20 is not set ++# CONFIG_VIDEO_RDACM21 is not set ++CONFIG_VIDEO_RJ54N1=m ++CONFIG_VIDEO_S5K6AA=m ++CONFIG_VIDEO_S5K6A3=m ++CONFIG_VIDEO_S5K4ECGX=m ++CONFIG_VIDEO_S5K5BAF=m ++# CONFIG_VIDEO_CCS is not set ++CONFIG_VIDEO_ET8EK8=m ++CONFIG_VIDEO_S5C73M3=m ++# end of Camera sensor devices ++ ++# ++# Lens drivers ++# ++CONFIG_VIDEO_AD5820=m ++CONFIG_VIDEO_AK7375=m ++CONFIG_VIDEO_DW9714=m ++# CONFIG_VIDEO_DW9768 is not set ++CONFIG_VIDEO_DW9807_VCM=m ++# end of Lens drivers ++ ++# ++# Flash devices ++# ++CONFIG_VIDEO_ADP1653=m ++CONFIG_VIDEO_LM3560=m ++CONFIG_VIDEO_LM3646=m ++# end of Flash devices ++ ++# ++# SPI helper chips ++# ++CONFIG_VIDEO_GS1662=m ++# end of SPI helper chips ++ ++# ++# Media SPI Adapters ++# ++CONFIG_CXD2880_SPI_DRV=m ++# end of Media SPI Adapters ++ ++CONFIG_MEDIA_TUNER=m ++ ++# ++# Customize TV tuners ++# ++CONFIG_MEDIA_TUNER_SIMPLE=m ++CONFIG_MEDIA_TUNER_TDA18250=m ++CONFIG_MEDIA_TUNER_TDA8290=m ++CONFIG_MEDIA_TUNER_TDA827X=m ++CONFIG_MEDIA_TUNER_TDA18271=m ++CONFIG_MEDIA_TUNER_TDA9887=m ++CONFIG_MEDIA_TUNER_TEA5761=m ++CONFIG_MEDIA_TUNER_TEA5767=m ++CONFIG_MEDIA_TUNER_MSI001=m ++CONFIG_MEDIA_TUNER_MT20XX=m ++CONFIG_MEDIA_TUNER_MT2060=m ++CONFIG_MEDIA_TUNER_MT2063=m ++CONFIG_MEDIA_TUNER_MT2266=m ++CONFIG_MEDIA_TUNER_MT2131=m ++CONFIG_MEDIA_TUNER_QT1010=m ++CONFIG_MEDIA_TUNER_XC2028=m ++CONFIG_MEDIA_TUNER_XC5000=m ++CONFIG_MEDIA_TUNER_XC4000=m ++CONFIG_MEDIA_TUNER_MXL5005S=m ++CONFIG_MEDIA_TUNER_MXL5007T=m ++CONFIG_MEDIA_TUNER_MC44S803=m ++CONFIG_MEDIA_TUNER_MAX2165=m ++CONFIG_MEDIA_TUNER_TDA18218=m ++CONFIG_MEDIA_TUNER_FC0011=m ++CONFIG_MEDIA_TUNER_FC0012=m ++CONFIG_MEDIA_TUNER_FC0013=m ++CONFIG_MEDIA_TUNER_TDA18212=m ++CONFIG_MEDIA_TUNER_E4000=m ++CONFIG_MEDIA_TUNER_FC2580=m ++CONFIG_MEDIA_TUNER_M88RS6000T=m ++CONFIG_MEDIA_TUNER_TUA9001=m ++CONFIG_MEDIA_TUNER_SI2157=m ++CONFIG_MEDIA_TUNER_IT913X=m ++CONFIG_MEDIA_TUNER_R820T=m ++CONFIG_MEDIA_TUNER_MXL301RF=m ++CONFIG_MEDIA_TUNER_QM1D1C0042=m ++CONFIG_MEDIA_TUNER_QM1D1B0004=m ++# end of Customize TV tuners ++ ++# ++# Customise DVB Frontends ++# ++ ++# ++# Multistandard (satellite) frontends ++# ++CONFIG_DVB_STB0899=m ++CONFIG_DVB_STB6100=m ++CONFIG_DVB_STV090x=m ++CONFIG_DVB_STV0910=m ++CONFIG_DVB_STV6110x=m ++CONFIG_DVB_STV6111=m ++CONFIG_DVB_MXL5XX=m ++CONFIG_DVB_M88DS3103=m ++ ++# ++# Multistandard (cable + terrestrial) frontends ++# ++CONFIG_DVB_DRXK=m ++CONFIG_DVB_TDA18271C2DD=m ++CONFIG_DVB_SI2165=m ++CONFIG_DVB_MN88472=m ++CONFIG_DVB_MN88473=m ++ ++# ++# DVB-S (satellite) frontends ++# ++CONFIG_DVB_CX24110=m ++CONFIG_DVB_CX24123=m ++CONFIG_DVB_MT312=m ++CONFIG_DVB_ZL10036=m ++CONFIG_DVB_ZL10039=m ++CONFIG_DVB_S5H1420=m ++CONFIG_DVB_STV0288=m ++CONFIG_DVB_STB6000=m ++CONFIG_DVB_STV0299=m ++CONFIG_DVB_STV6110=m ++CONFIG_DVB_STV0900=m ++CONFIG_DVB_TDA8083=m ++CONFIG_DVB_TDA10086=m ++CONFIG_DVB_TDA8261=m ++CONFIG_DVB_VES1X93=m ++CONFIG_DVB_TUNER_ITD1000=m ++CONFIG_DVB_TUNER_CX24113=m ++CONFIG_DVB_TDA826X=m ++CONFIG_DVB_TUA6100=m ++CONFIG_DVB_CX24116=m ++CONFIG_DVB_CX24117=m ++CONFIG_DVB_CX24120=m ++CONFIG_DVB_SI21XX=m ++CONFIG_DVB_TS2020=m ++CONFIG_DVB_DS3000=m ++CONFIG_DVB_MB86A16=m ++CONFIG_DVB_TDA10071=m ++ ++# ++# DVB-T (terrestrial) frontends ++# ++CONFIG_DVB_SP887X=m ++CONFIG_DVB_CX22700=m ++CONFIG_DVB_CX22702=m ++CONFIG_DVB_S5H1432=m ++CONFIG_DVB_DRXD=m ++CONFIG_DVB_L64781=m ++CONFIG_DVB_TDA1004X=m ++CONFIG_DVB_NXT6000=m ++CONFIG_DVB_MT352=m ++CONFIG_DVB_ZL10353=m ++CONFIG_DVB_DIB3000MB=m ++CONFIG_DVB_DIB3000MC=m ++CONFIG_DVB_DIB7000M=m ++CONFIG_DVB_DIB7000P=m ++CONFIG_DVB_DIB9000=m ++CONFIG_DVB_TDA10048=m ++CONFIG_DVB_AF9013=m ++CONFIG_DVB_EC100=m ++CONFIG_DVB_STV0367=m ++CONFIG_DVB_CXD2820R=m ++CONFIG_DVB_CXD2841ER=m ++CONFIG_DVB_RTL2830=m ++CONFIG_DVB_RTL2832=m ++CONFIG_DVB_RTL2832_SDR=m ++CONFIG_DVB_SI2168=m ++CONFIG_DVB_AS102_FE=m ++CONFIG_DVB_ZD1301_DEMOD=m ++CONFIG_DVB_GP8PSK_FE=m ++CONFIG_DVB_CXD2880=m ++ ++# ++# DVB-C (cable) frontends ++# ++CONFIG_DVB_VES1820=m ++CONFIG_DVB_TDA10021=m ++CONFIG_DVB_TDA10023=m ++CONFIG_DVB_STV0297=m ++ ++# ++# ATSC (North American/Korean Terrestrial/Cable DTV) frontends ++# ++CONFIG_DVB_NXT200X=m ++CONFIG_DVB_OR51211=m ++CONFIG_DVB_OR51132=m ++CONFIG_DVB_BCM3510=m ++CONFIG_DVB_LGDT330X=m ++CONFIG_DVB_LGDT3305=m ++CONFIG_DVB_LGDT3306A=m ++CONFIG_DVB_LG2160=m ++CONFIG_DVB_S5H1409=m ++CONFIG_DVB_AU8522=m ++CONFIG_DVB_AU8522_DTV=m ++CONFIG_DVB_AU8522_V4L=m ++CONFIG_DVB_S5H1411=m ++CONFIG_DVB_MXL692=m ++ ++# ++# ISDB-T (terrestrial) frontends ++# ++CONFIG_DVB_S921=m ++CONFIG_DVB_DIB8000=m ++CONFIG_DVB_MB86A20S=m ++ ++# ++# ISDB-S (satellite) & ISDB-T (terrestrial) frontends ++# ++CONFIG_DVB_TC90522=m ++CONFIG_DVB_MN88443X=m ++ ++# ++# Digital terrestrial only tuners/PLL ++# ++CONFIG_DVB_PLL=m ++CONFIG_DVB_TUNER_DIB0070=m ++CONFIG_DVB_TUNER_DIB0090=m ++ ++# ++# SEC control devices for DVB-S ++# ++CONFIG_DVB_DRX39XYJ=m ++CONFIG_DVB_LNBH25=m ++CONFIG_DVB_LNBH29=m ++CONFIG_DVB_LNBP21=m ++CONFIG_DVB_LNBP22=m ++CONFIG_DVB_ISL6405=m ++CONFIG_DVB_ISL6421=m ++CONFIG_DVB_ISL6423=m ++CONFIG_DVB_A8293=m ++CONFIG_DVB_LGS8GL5=m ++CONFIG_DVB_LGS8GXX=m ++CONFIG_DVB_ATBM8830=m ++CONFIG_DVB_TDA665x=m ++CONFIG_DVB_IX2505V=m ++CONFIG_DVB_M88RS2000=m ++CONFIG_DVB_AF9033=m ++CONFIG_DVB_HORUS3A=m ++CONFIG_DVB_ASCOT2E=m ++CONFIG_DVB_HELENE=m ++ ++# ++# Common Interface (EN50221) controller drivers ++# ++CONFIG_DVB_CXD2099=m ++CONFIG_DVB_SP2=m ++# end of Customise DVB Frontends ++ ++# ++# Tools to develop new frontends ++# ++CONFIG_DVB_DUMMY_FE=m ++# end of Media ancillary drivers ++ ++# ++# Graphics support ++# ++CONFIG_VGA_ARB=y ++CONFIG_VGA_ARB_MAX_GPUS=16 ++CONFIG_DRM=y ++CONFIG_DRM_MIPI_DBI=m ++CONFIG_DRM_MIPI_DSI=y ++CONFIG_DRM_DP_AUX_BUS=m ++# CONFIG_DRM_DP_AUX_CHARDEV is not set ++# CONFIG_DRM_DEBUG_MM is not set ++# CONFIG_DRM_DEBUG_SELFTEST is not set ++CONFIG_DRM_KMS_HELPER=y ++CONFIG_DRM_KMS_FB_HELPER=y ++# CONFIG_DRM_DEBUG_DP_MST_TOPOLOGY_REFS is not set ++CONFIG_DRM_FBDEV_EMULATION=y ++CONFIG_DRM_FBDEV_OVERALLOC=100 ++# CONFIG_DRM_FBDEV_LEAK_PHYS_SMEM is not set ++# CONFIG_DRM_LOAD_EDID_FIRMWARE is not set ++CONFIG_DRM_DP_CEC=y ++CONFIG_DRM_GEM_CMA_HELPER=y ++CONFIG_DRM_KMS_CMA_HELPER=y ++CONFIG_DRM_GEM_SHMEM_HELPER=y ++CONFIG_DRM_SCHED=m ++ ++# ++# I2C encoder or helper chips ++# ++CONFIG_DRM_I2C_CH7006=m ++CONFIG_DRM_I2C_SIL164=m ++# CONFIG_DRM_I2C_NXP_TDA998X is not set ++CONFIG_DRM_I2C_NXP_TDA9950=m ++# end of I2C encoder or helper chips ++ ++# ++# ARM devices ++# ++# CONFIG_DRM_HDLCD is not set ++# CONFIG_DRM_MALI_DISPLAY is not set ++CONFIG_DRM_KOMEDA=m ++# end of ARM devices ++ ++CONFIG_DRM_BAIKAL_VDU=y ++# CONFIG_DRM_RADEON is not set ++# CONFIG_DRM_AMDGPU is not set ++# CONFIG_DRM_NOUVEAU is not set ++# CONFIG_DRM_VGEM is not set ++# CONFIG_DRM_VKMS is not set ++CONFIG_DRM_ROCKCHIP=y ++CONFIG_ROCKCHIP_ANALOGIX_DP=y ++CONFIG_ROCKCHIP_CDN_DP=y ++CONFIG_ROCKCHIP_DW_HDMI=y ++CONFIG_ROCKCHIP_DW_MIPI_DSI=y ++CONFIG_ROCKCHIP_INNO_HDMI=y ++CONFIG_ROCKCHIP_LVDS=y ++# CONFIG_ROCKCHIP_RGB is not set ++# CONFIG_ROCKCHIP_RK3066_HDMI is not set ++# CONFIG_DRM_VMWGFX is not set ++# CONFIG_DRM_UDL is not set ++# CONFIG_DRM_AST is not set ++# CONFIG_DRM_MGAG200 is not set ++# CONFIG_DRM_RCAR_DW_HDMI is not set ++CONFIG_DRM_RCAR_LVDS=m ++# CONFIG_DRM_QXL is not set ++CONFIG_DRM_PANEL=y ++ ++# ++# Display Panels ++# ++# CONFIG_DRM_PANEL_ABT_Y030XX067A is not set ++CONFIG_DRM_PANEL_ARM_VERSATILE=m ++# CONFIG_DRM_PANEL_ASUS_Z00T_TM5P5_NT35596 is not set ++CONFIG_DRM_PANEL_BOE_HIMAX8279D=m ++CONFIG_DRM_PANEL_BOE_TV101WUM_NL6=m ++# CONFIG_DRM_PANEL_DSI_CM is not set ++CONFIG_DRM_PANEL_LVDS=m ++CONFIG_DRM_PANEL_SIMPLE=m ++CONFIG_DRM_PANEL_ELIDA_KD35T133=m ++CONFIG_DRM_PANEL_FEIXIN_K101_IM2BA02=m ++CONFIG_DRM_PANEL_FEIYANG_FY07024DI26A30D=m ++CONFIG_DRM_PANEL_ILITEK_IL9322=m ++# CONFIG_DRM_PANEL_ILITEK_ILI9341 is not set ++CONFIG_DRM_PANEL_ILITEK_ILI9881C=m ++# CONFIG_DRM_PANEL_INNOLUX_EJ030NA is not set ++CONFIG_DRM_PANEL_INNOLUX_P079ZCA=m ++CONFIG_DRM_PANEL_JDI_LT070ME05000=m ++# CONFIG_DRM_PANEL_KHADAS_TS050 is not set ++CONFIG_DRM_PANEL_KINGDISPLAY_KD097D04=m ++# CONFIG_DRM_PANEL_LEADTEK_LTK050H3146W is not set ++CONFIG_DRM_PANEL_LEADTEK_LTK500HD1829=m ++# CONFIG_DRM_PANEL_SAMSUNG_LD9040 is not set ++CONFIG_DRM_PANEL_LG_LB035Q02=m ++# CONFIG_DRM_PANEL_LG_LG4573 is not set ++CONFIG_DRM_PANEL_NEC_NL8048HL11=m ++CONFIG_DRM_PANEL_NOVATEK_NT35510=m ++# CONFIG_DRM_PANEL_NOVATEK_NT36672A is not set ++CONFIG_DRM_PANEL_NOVATEK_NT39016=m ++# CONFIG_DRM_PANEL_MANTIX_MLAF057WE51 is not set ++CONFIG_DRM_PANEL_OLIMEX_LCD_OLINUXINO=m ++CONFIG_DRM_PANEL_ORISETECH_OTM8009A=m ++# CONFIG_DRM_PANEL_OSD_OSD101T2587_53TS is not set ++CONFIG_DRM_PANEL_PANASONIC_VVX10F034N00=m ++CONFIG_DRM_PANEL_RASPBERRYPI_TOUCHSCREEN=m ++CONFIG_DRM_PANEL_RAYDIUM_RM67191=m ++CONFIG_DRM_PANEL_RAYDIUM_RM68200=m ++CONFIG_DRM_PANEL_RONBO_RB070D30=m ++# CONFIG_DRM_PANEL_SAMSUNG_ATNA33XC20 is not set ++# CONFIG_DRM_PANEL_SAMSUNG_DB7430 is not set ++CONFIG_DRM_PANEL_SAMSUNG_S6D16D0=m ++CONFIG_DRM_PANEL_SAMSUNG_S6E3HA2=m ++CONFIG_DRM_PANEL_SAMSUNG_S6E63J0X03=m ++# CONFIG_DRM_PANEL_SAMSUNG_S6E63M0 is not set ++CONFIG_DRM_PANEL_SAMSUNG_S6E88A0_AMS452EF01=m ++# CONFIG_DRM_PANEL_SAMSUNG_S6E8AA0 is not set ++# CONFIG_DRM_PANEL_SAMSUNG_SOFEF00 is not set ++CONFIG_DRM_PANEL_SEIKO_43WVF1G=m ++CONFIG_DRM_PANEL_SHARP_LQ101R1SX01=m ++CONFIG_DRM_PANEL_SHARP_LS037V7DW01=m ++CONFIG_DRM_PANEL_SHARP_LS043T1LE01=m ++CONFIG_DRM_PANEL_SITRONIX_ST7701=m ++# CONFIG_DRM_PANEL_SITRONIX_ST7703 is not set ++# CONFIG_DRM_PANEL_SITRONIX_ST7789V is not set ++CONFIG_DRM_PANEL_SONY_ACX424AKP=m ++CONFIG_DRM_PANEL_SONY_ACX565AKM=m ++# CONFIG_DRM_PANEL_TDO_TL070WSH30 is not set ++CONFIG_DRM_PANEL_TPO_TD028TTEC1=m ++CONFIG_DRM_PANEL_TPO_TD043MTEA1=m ++CONFIG_DRM_PANEL_TPO_TPG110=m ++CONFIG_DRM_PANEL_TRULY_NT35597_WQXGA=m ++# CONFIG_DRM_PANEL_VISIONOX_RM69299 is not set ++# CONFIG_DRM_PANEL_WIDECHIPS_WS2401 is not set ++CONFIG_DRM_PANEL_XINPENG_XPP055C272=m ++# end of Display Panels ++ ++CONFIG_DRM_BRIDGE=y ++CONFIG_DRM_PANEL_BRIDGE=y ++ ++# ++# Display Interface Bridges ++# ++CONFIG_DRM_CDNS_DSI=m ++# CONFIG_DRM_CHIPONE_ICN6211 is not set ++# CONFIG_DRM_CHRONTEL_CH7033 is not set ++CONFIG_DRM_DISPLAY_CONNECTOR=m ++# CONFIG_DRM_LONTIUM_LT8912B is not set ++# CONFIG_DRM_LONTIUM_LT9611 is not set ++# CONFIG_DRM_LONTIUM_LT9611UXC is not set ++# CONFIG_DRM_ITE_IT66121 is not set ++CONFIG_DRM_LVDS_CODEC=m ++CONFIG_DRM_BAIKAL_HDMI=y ++# CONFIG_DRM_MEGACHIPS_STDPXXXX_GE_B850V3_FW is not set ++# CONFIG_DRM_NWL_MIPI_DSI is not set ++# CONFIG_DRM_NXP_PTN3460 is not set ++# CONFIG_DRM_PARADE_PS8622 is not set ++CONFIG_DRM_PARADE_PS8640=m ++# CONFIG_DRM_SIL_SII8620 is not set ++# CONFIG_DRM_SII902X is not set ++CONFIG_DRM_SII9234=m ++# CONFIG_DRM_SIMPLE_BRIDGE is not set ++CONFIG_DRM_THINE_THC63LVD1024=m ++# CONFIG_DRM_TOSHIBA_TC358762 is not set ++CONFIG_DRM_TOSHIBA_TC358764=m ++# CONFIG_DRM_TOSHIBA_TC358767 is not set ++CONFIG_DRM_TOSHIBA_TC358768=m ++# CONFIG_DRM_TOSHIBA_TC358775 is not set ++# CONFIG_DRM_TI_TFP410 is not set ++# CONFIG_DRM_TI_SN65DSI83 is not set ++# CONFIG_DRM_TI_SN65DSI86 is not set ++CONFIG_DRM_TI_TPD12S015=m ++CONFIG_DRM_ANALOGIX_ANX6345=m ++CONFIG_DRM_ANALOGIX_ANX78XX=m ++CONFIG_DRM_ANALOGIX_DP=y ++# CONFIG_DRM_ANALOGIX_ANX7625 is not set ++CONFIG_DRM_I2C_ADV7511=m ++# CONFIG_DRM_I2C_ADV7511_AUDIO is not set ++CONFIG_DRM_I2C_ADV7511_CEC=y ++# CONFIG_DRM_CDNS_MHDP8546 is not set ++CONFIG_DRM_DW_HDMI=y ++CONFIG_DRM_DW_HDMI_AHB_AUDIO=m ++CONFIG_DRM_DW_HDMI_I2S_AUDIO=m ++CONFIG_DRM_DW_HDMI_CEC=m ++CONFIG_DRM_DW_MIPI_DSI=y ++# end of Display Interface Bridges ++ ++CONFIG_DRM_ETNAVIV=m ++CONFIG_DRM_ETNAVIV_THERMAL=y ++# CONFIG_DRM_HISI_HIBMC is not set ++CONFIG_DRM_HISI_KIRIN=m ++# CONFIG_DRM_MXSFB is not set ++# CONFIG_DRM_ARCPGU is not set ++# CONFIG_DRM_BOCHS is not set ++# CONFIG_DRM_CIRRUS_QEMU is not set ++CONFIG_DRM_GM12U320=m ++# CONFIG_DRM_SIMPLEDRM is not set ++CONFIG_TINYDRM_HX8357D=m ++CONFIG_TINYDRM_ILI9225=m ++CONFIG_TINYDRM_ILI9341=m ++CONFIG_TINYDRM_ILI9486=m ++CONFIG_TINYDRM_MI0283QT=m ++CONFIG_TINYDRM_REPAPER=m ++CONFIG_TINYDRM_ST7586=m ++CONFIG_TINYDRM_ST7735R=m ++# CONFIG_DRM_PL111 is not set ++CONFIG_DRM_LIMA=m ++CONFIG_DRM_PANFROST=m ++CONFIG_DRM_TIDSS=m ++# CONFIG_DRM_GUD is not set ++# CONFIG_DRM_LEGACY is not set ++CONFIG_DRM_PANEL_ORIENTATION_QUIRKS=y ++ ++# ++# Frame buffer Devices ++# ++CONFIG_FB_CMDLINE=y ++CONFIG_FB_NOTIFY=y ++CONFIG_FB=y ++CONFIG_FIRMWARE_EDID=y ++CONFIG_FB_CFB_FILLRECT=y ++CONFIG_FB_CFB_COPYAREA=y ++CONFIG_FB_CFB_IMAGEBLIT=y ++CONFIG_FB_SYS_FILLRECT=y ++CONFIG_FB_SYS_COPYAREA=y ++CONFIG_FB_SYS_IMAGEBLIT=y ++# CONFIG_FB_FOREIGN_ENDIAN is not set ++CONFIG_FB_SYS_FOPS=y ++CONFIG_FB_DEFERRED_IO=y ++CONFIG_FB_BACKLIGHT=m ++CONFIG_FB_MODE_HELPERS=y ++# CONFIG_FB_TILEBLITTING is not set ++ ++# ++# Frame buffer hardware drivers ++# ++# CONFIG_FB_CIRRUS is not set ++# CONFIG_FB_PM2 is not set ++CONFIG_FB_ARMCLCD=y ++# CONFIG_FB_CYBER2000 is not set ++# CONFIG_FB_ASILIANT is not set ++# CONFIG_FB_IMSTT is not set ++# CONFIG_FB_UVESA is not set ++CONFIG_FB_EFI=y ++# CONFIG_FB_OPENCORES is not set ++# CONFIG_FB_S1D13XXX is not set ++# CONFIG_FB_NVIDIA is not set ++# CONFIG_FB_RIVA is not set ++# CONFIG_FB_I740 is not set ++# CONFIG_FB_MATROX is not set ++# CONFIG_FB_RADEON is not set ++# CONFIG_FB_ATY128 is not set ++# CONFIG_FB_ATY is not set ++# CONFIG_FB_S3 is not set ++# CONFIG_FB_SAVAGE is not set ++# CONFIG_FB_SIS is not set ++# CONFIG_FB_NEOMAGIC is not set ++# CONFIG_FB_KYRO is not set ++# CONFIG_FB_3DFX is not set ++# CONFIG_FB_VOODOO1 is not set ++# CONFIG_FB_VT8623 is not set ++# CONFIG_FB_TRIDENT is not set ++# CONFIG_FB_ARK is not set ++# CONFIG_FB_PM3 is not set ++# CONFIG_FB_CARMINE is not set ++# CONFIG_FB_SMSCUFX is not set ++# CONFIG_FB_UDL is not set ++# CONFIG_FB_IBM_GXT4500 is not set ++# CONFIG_FB_VIRTUAL is not set ++# CONFIG_FB_METRONOME is not set ++# CONFIG_FB_MB862XX is not set ++# CONFIG_FB_SIMPLE is not set ++# CONFIG_FB_SSD1307 is not set ++# CONFIG_FB_SM712 is not set ++# end of Frame buffer Devices ++ ++# ++# Backlight & LCD device support ++# ++CONFIG_LCD_CLASS_DEVICE=m ++# CONFIG_LCD_L4F00242T03 is not set ++# CONFIG_LCD_LMS283GF05 is not set ++# CONFIG_LCD_LTV350QV is not set ++# CONFIG_LCD_ILI922X is not set ++# CONFIG_LCD_ILI9320 is not set ++# CONFIG_LCD_TDO24M is not set ++# CONFIG_LCD_VGG2432A4 is not set ++# CONFIG_LCD_PLATFORM is not set ++# CONFIG_LCD_AMS369FG06 is not set ++# CONFIG_LCD_LMS501KF03 is not set ++# CONFIG_LCD_HX8357 is not set ++CONFIG_LCD_OTM3225A=m ++CONFIG_BACKLIGHT_CLASS_DEVICE=y ++# CONFIG_BACKLIGHT_KTD253 is not set ++CONFIG_BACKLIGHT_LM3533=m ++CONFIG_BACKLIGHT_PWM=m ++CONFIG_BACKLIGHT_QCOM_WLED=m ++CONFIG_BACKLIGHT_ADP5520=m ++# CONFIG_BACKLIGHT_ADP8860 is not set ++# CONFIG_BACKLIGHT_ADP8870 is not set ++CONFIG_BACKLIGHT_AAT2870=m ++# CONFIG_BACKLIGHT_LM3630A is not set ++# CONFIG_BACKLIGHT_LM3639 is not set ++CONFIG_BACKLIGHT_LP855X=y ++CONFIG_BACKLIGHT_AS3711=m ++CONFIG_BACKLIGHT_GPIO=m ++# CONFIG_BACKLIGHT_LV5207LP is not set ++# CONFIG_BACKLIGHT_BD6107 is not set ++# CONFIG_BACKLIGHT_ARCXCNN is not set ++CONFIG_BACKLIGHT_LED=m ++# end of Backlight & LCD device support ++ ++CONFIG_VIDEOMODE_HELPERS=y ++CONFIG_HDMI=y ++ ++# ++# Console display driver support ++# ++CONFIG_DUMMY_CONSOLE=y ++CONFIG_DUMMY_CONSOLE_COLUMNS=80 ++CONFIG_DUMMY_CONSOLE_ROWS=25 ++CONFIG_FRAMEBUFFER_CONSOLE=y ++CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY=y ++CONFIG_FRAMEBUFFER_CONSOLE_ROTATION=y ++# CONFIG_FRAMEBUFFER_CONSOLE_DEFERRED_TAKEOVER is not set ++# end of Console display driver support ++ ++CONFIG_LOGO=y ++CONFIG_LOGO_LINUX_MONO=y ++CONFIG_LOGO_LINUX_VGA16=y ++CONFIG_LOGO_LINUX_CLUT224=y ++# end of Graphics support ++ ++CONFIG_SOUND=m ++CONFIG_SND=m ++CONFIG_SND_TIMER=m ++CONFIG_SND_PCM=m ++CONFIG_SND_PCM_ELD=y ++CONFIG_SND_PCM_IEC958=y ++CONFIG_SND_DMAENGINE_PCM=m ++CONFIG_SND_HWDEP=m ++CONFIG_SND_SEQ_DEVICE=m ++CONFIG_SND_RAWMIDI=m ++CONFIG_SND_JACK=y ++CONFIG_SND_JACK_INPUT_DEV=y ++# CONFIG_SND_OSSEMUL is not set ++CONFIG_SND_PCM_TIMER=y ++# CONFIG_SND_HRTIMER is not set ++# CONFIG_SND_DYNAMIC_MINORS is not set ++# CONFIG_SND_SUPPORT_OLD_API is not set ++CONFIG_SND_PROC_FS=y ++CONFIG_SND_VERBOSE_PROCFS=y ++# CONFIG_SND_VERBOSE_PRINTK is not set ++# CONFIG_SND_DEBUG is not set ++CONFIG_SND_VMASTER=y ++CONFIG_SND_SEQUENCER=m ++CONFIG_SND_SEQ_DUMMY=m ++CONFIG_SND_SEQ_MIDI_EVENT=m ++CONFIG_SND_SEQ_MIDI=m ++CONFIG_SND_SEQ_MIDI_EMUL=m ++CONFIG_SND_SEQ_VIRMIDI=m ++CONFIG_SND_MPU401_UART=m ++CONFIG_SND_OPL3_LIB=m ++CONFIG_SND_OPL3_LIB_SEQ=m ++CONFIG_SND_AC97_CODEC=m ++CONFIG_SND_DRIVERS=y ++CONFIG_SND_DUMMY=m ++CONFIG_SND_ALOOP=m ++CONFIG_SND_VIRMIDI=m ++CONFIG_SND_MTPAV=m ++CONFIG_SND_SERIAL_U16550=m ++CONFIG_SND_MPU401=m ++# CONFIG_SND_AC97_POWER_SAVE is not set ++CONFIG_SND_PCI=y ++# CONFIG_SND_AD1889 is not set ++CONFIG_SND_ALS300=m ++CONFIG_SND_ALI5451=m ++# CONFIG_SND_ATIIXP is not set ++# CONFIG_SND_ATIIXP_MODEM is not set ++# CONFIG_SND_AU8810 is not set ++# CONFIG_SND_AU8820 is not set ++# CONFIG_SND_AU8830 is not set ++CONFIG_SND_AW2=m ++CONFIG_SND_AZT3328=m ++# CONFIG_SND_BT87X is not set ++# CONFIG_SND_CA0106 is not set ++# CONFIG_SND_CMIPCI is not set ++# CONFIG_SND_OXYGEN is not set ++# CONFIG_SND_CS4281 is not set ++# CONFIG_SND_CS46XX is not set ++# CONFIG_SND_CTXFI is not set ++# CONFIG_SND_DARLA20 is not set ++# CONFIG_SND_GINA20 is not set ++# CONFIG_SND_LAYLA20 is not set ++# CONFIG_SND_DARLA24 is not set ++# CONFIG_SND_GINA24 is not set ++# CONFIG_SND_LAYLA24 is not set ++# CONFIG_SND_MONA is not set ++# CONFIG_SND_MIA is not set ++# CONFIG_SND_ECHO3G is not set ++# CONFIG_SND_INDIGO is not set ++# CONFIG_SND_INDIGOIO is not set ++# CONFIG_SND_INDIGODJ is not set ++# CONFIG_SND_INDIGOIOX is not set ++# CONFIG_SND_INDIGODJX is not set ++CONFIG_SND_EMU10K1=m ++CONFIG_SND_EMU10K1_SEQ=m ++CONFIG_SND_EMU10K1X=m ++# CONFIG_SND_ENS1370 is not set ++# CONFIG_SND_ENS1371 is not set ++CONFIG_SND_ES1938=m ++CONFIG_SND_ES1968=m ++# CONFIG_SND_ES1968_INPUT is not set ++# CONFIG_SND_ES1968_RADIO is not set ++# CONFIG_SND_FM801 is not set ++# CONFIG_SND_HDSP is not set ++# CONFIG_SND_HDSPM is not set ++CONFIG_SND_ICE1712=m ++# CONFIG_SND_ICE1724 is not set ++# CONFIG_SND_INTEL8X0 is not set ++# CONFIG_SND_INTEL8X0M is not set ++# CONFIG_SND_KORG1212 is not set ++# CONFIG_SND_LOLA is not set ++# CONFIG_SND_LX6464ES is not set ++CONFIG_SND_MAESTRO3=m ++# CONFIG_SND_MAESTRO3_INPUT is not set ++# CONFIG_SND_MIXART is not set ++# CONFIG_SND_NM256 is not set ++# CONFIG_SND_PCXHR is not set ++# CONFIG_SND_RIPTIDE is not set ++# CONFIG_SND_RME32 is not set ++# CONFIG_SND_RME96 is not set ++# CONFIG_SND_RME9652 is not set ++# CONFIG_SND_SE6X is not set ++CONFIG_SND_SONICVIBES=m ++CONFIG_SND_TRIDENT=m ++# CONFIG_SND_VIA82XX is not set ++# CONFIG_SND_VIA82XX_MODEM is not set ++# CONFIG_SND_VIRTUOSO is not set ++# CONFIG_SND_VX222 is not set ++# CONFIG_SND_YMFPCI is not set ++ ++# ++# HD-Audio ++# ++# CONFIG_SND_HDA_INTEL is not set ++# end of HD-Audio ++ ++CONFIG_SND_HDA_PREALLOC_SIZE=64 ++CONFIG_SND_SPI=y ++CONFIG_SND_USB=y ++CONFIG_SND_USB_AUDIO=m ++CONFIG_SND_USB_AUDIO_USE_MEDIA_CONTROLLER=y ++CONFIG_SND_USB_UA101=m ++CONFIG_SND_USB_CAIAQ=m ++CONFIG_SND_USB_CAIAQ_INPUT=y ++CONFIG_SND_USB_6FIRE=m ++CONFIG_SND_USB_HIFACE=m ++CONFIG_SND_BCD2000=m ++CONFIG_SND_USB_LINE6=m ++CONFIG_SND_USB_POD=m ++CONFIG_SND_USB_PODHD=m ++CONFIG_SND_USB_TONEPORT=m ++CONFIG_SND_USB_VARIAX=m ++CONFIG_SND_SOC=m ++CONFIG_SND_SOC_GENERIC_DMAENGINE_PCM=y ++# CONFIG_SND_SOC_ADI is not set ++# CONFIG_SND_SOC_AMD_ACP is not set ++# CONFIG_SND_ATMEL_SOC is not set ++CONFIG_SND_BCM63XX_I2S_WHISTLER=m ++CONFIG_SND_DESIGNWARE_I2S=m ++CONFIG_SND_DESIGNWARE_PCM=y ++ ++# ++# SoC Audio for Freescale CPUs ++# ++ ++# ++# Common SoC Audio options for Freescale CPUs: ++# ++# CONFIG_SND_SOC_FSL_ASRC is not set ++# CONFIG_SND_SOC_FSL_SAI is not set ++CONFIG_SND_SOC_FSL_AUDMIX=m ++# CONFIG_SND_SOC_FSL_SSI is not set ++# CONFIG_SND_SOC_FSL_SPDIF is not set ++# CONFIG_SND_SOC_FSL_ESAI is not set ++CONFIG_SND_SOC_FSL_MICFIL=m ++# CONFIG_SND_SOC_FSL_XCVR is not set ++# CONFIG_SND_SOC_IMX_AUDMUX is not set ++# end of SoC Audio for Freescale CPUs ++ ++# CONFIG_SND_I2S_HI6210_I2S is not set ++# CONFIG_SND_SOC_IMG is not set ++# CONFIG_SND_SOC_MTK_BTCVSD is not set ++CONFIG_SND_SOC_ROCKCHIP=m ++CONFIG_SND_SOC_ROCKCHIP_I2S=m ++CONFIG_SND_SOC_ROCKCHIP_PDM=m ++CONFIG_SND_SOC_ROCKCHIP_SPDIF=m ++CONFIG_SND_SOC_ROCKCHIP_MAX98090=m ++CONFIG_SND_SOC_ROCKCHIP_RT5645=m ++CONFIG_SND_SOC_RK3288_HDMI_ANALOG=m ++CONFIG_SND_SOC_RK3399_GRU_SOUND=m ++# CONFIG_SND_SOC_SOF_TOPLEVEL is not set ++ ++# ++# STMicroelectronics STM32 SOC audio support ++# ++# end of STMicroelectronics STM32 SOC audio support ++ ++CONFIG_SND_SOC_XILINX_I2S=m ++CONFIG_SND_SOC_XILINX_AUDIO_FORMATTER=m ++CONFIG_SND_SOC_XILINX_SPDIF=m ++# CONFIG_SND_SOC_XTFPGA_I2S is not set ++CONFIG_SND_SOC_I2C_AND_SPI=m ++ ++# ++# CODEC drivers ++# ++# CONFIG_SND_SOC_AC97_CODEC is not set ++# CONFIG_SND_SOC_ADAU1372_I2C is not set ++# CONFIG_SND_SOC_ADAU1372_SPI is not set ++# CONFIG_SND_SOC_ADAU1701 is not set ++# CONFIG_SND_SOC_ADAU1761_I2C is not set ++# CONFIG_SND_SOC_ADAU1761_SPI is not set ++# CONFIG_SND_SOC_ADAU7002 is not set ++CONFIG_SND_SOC_ADAU7118=m ++CONFIG_SND_SOC_ADAU7118_HW=m ++CONFIG_SND_SOC_ADAU7118_I2C=m ++# CONFIG_SND_SOC_AK4104 is not set ++CONFIG_SND_SOC_AK4118=m ++CONFIG_SND_SOC_AK4458=m ++CONFIG_SND_SOC_AK4554=m ++CONFIG_SND_SOC_AK4613=m ++CONFIG_SND_SOC_AK4642=m ++CONFIG_SND_SOC_AK5386=m ++CONFIG_SND_SOC_AK5558=m ++CONFIG_SND_SOC_ALC5623=m ++CONFIG_SND_SOC_BD28623=m ++# CONFIG_SND_SOC_BT_SCO is not set ++# CONFIG_SND_SOC_CS35L32 is not set ++# CONFIG_SND_SOC_CS35L33 is not set ++# CONFIG_SND_SOC_CS35L34 is not set ++# CONFIG_SND_SOC_CS35L35 is not set ++CONFIG_SND_SOC_CS35L36=m ++# CONFIG_SND_SOC_CS42L42 is not set ++# CONFIG_SND_SOC_CS42L51_I2C is not set ++# CONFIG_SND_SOC_CS42L52 is not set ++# CONFIG_SND_SOC_CS42L56 is not set ++# CONFIG_SND_SOC_CS42L73 is not set ++# CONFIG_SND_SOC_CS4234 is not set ++# CONFIG_SND_SOC_CS4265 is not set ++# CONFIG_SND_SOC_CS4270 is not set ++# CONFIG_SND_SOC_CS4271_I2C is not set ++# CONFIG_SND_SOC_CS4271_SPI is not set ++# CONFIG_SND_SOC_CS42XX8_I2C is not set ++CONFIG_SND_SOC_CS43130=m ++CONFIG_SND_SOC_CS4341=m ++# CONFIG_SND_SOC_CS4349 is not set ++# CONFIG_SND_SOC_CS53L30 is not set ++# CONFIG_SND_SOC_CX2072X is not set ++CONFIG_SND_SOC_DA7213=m ++CONFIG_SND_SOC_DA7219=m ++CONFIG_SND_SOC_DMIC=m ++CONFIG_SND_SOC_HDMI_CODEC=m ++CONFIG_SND_SOC_ES7134=m ++CONFIG_SND_SOC_ES7241=m ++CONFIG_SND_SOC_ES8316=m ++CONFIG_SND_SOC_ES8328=m ++CONFIG_SND_SOC_ES8328_I2C=m ++CONFIG_SND_SOC_ES8328_SPI=m ++# CONFIG_SND_SOC_GTM601 is not set ++# CONFIG_SND_SOC_ICS43432 is not set ++# CONFIG_SND_SOC_INNO_RK3036 is not set ++# CONFIG_SND_SOC_MAX98088 is not set ++CONFIG_SND_SOC_MAX98090=m ++CONFIG_SND_SOC_MAX98357A=m ++# CONFIG_SND_SOC_MAX98504 is not set ++CONFIG_SND_SOC_MAX9867=m ++# CONFIG_SND_SOC_MAX98927 is not set ++# CONFIG_SND_SOC_MAX98373_I2C is not set ++# CONFIG_SND_SOC_MAX98390 is not set ++# CONFIG_SND_SOC_MAX9860 is not set ++# CONFIG_SND_SOC_MSM8916_WCD_ANALOG is not set ++# CONFIG_SND_SOC_MSM8916_WCD_DIGITAL is not set ++# CONFIG_SND_SOC_PCM1681 is not set ++CONFIG_SND_SOC_PCM1789=m ++CONFIG_SND_SOC_PCM1789_I2C=m ++# CONFIG_SND_SOC_PCM179X_I2C is not set ++# CONFIG_SND_SOC_PCM179X_SPI is not set ++CONFIG_SND_SOC_PCM186X=m ++CONFIG_SND_SOC_PCM186X_I2C=m ++CONFIG_SND_SOC_PCM186X_SPI=m ++CONFIG_SND_SOC_PCM3060=m ++CONFIG_SND_SOC_PCM3060_I2C=m ++CONFIG_SND_SOC_PCM3060_SPI=m ++CONFIG_SND_SOC_PCM3168A=m ++CONFIG_SND_SOC_PCM3168A_I2C=m ++CONFIG_SND_SOC_PCM3168A_SPI=m ++# CONFIG_SND_SOC_PCM5102A is not set ++CONFIG_SND_SOC_PCM512x=m ++CONFIG_SND_SOC_PCM512x_I2C=m ++CONFIG_SND_SOC_PCM512x_SPI=m ++CONFIG_SND_SOC_RK3328=m ++# CONFIG_SND_SOC_RK817 is not set ++CONFIG_SND_SOC_RL6231=m ++CONFIG_SND_SOC_RT5514=m ++CONFIG_SND_SOC_RT5514_SPI=m ++CONFIG_SND_SOC_RT5616=m ++CONFIG_SND_SOC_RT5631=m ++# CONFIG_SND_SOC_RT5640 is not set ++CONFIG_SND_SOC_RT5645=m ++# CONFIG_SND_SOC_RT5659 is not set ++CONFIG_SND_SOC_SGTL5000=m ++CONFIG_SND_SOC_SIMPLE_AMPLIFIER=m ++# CONFIG_SND_SOC_SIMPLE_MUX is not set ++CONFIG_SND_SOC_SPDIF=m ++CONFIG_SND_SOC_SSM2305=m ++# CONFIG_SND_SOC_SSM2518 is not set ++CONFIG_SND_SOC_SSM2602=m ++CONFIG_SND_SOC_SSM2602_SPI=m ++CONFIG_SND_SOC_SSM2602_I2C=m ++CONFIG_SND_SOC_SSM4567=m ++CONFIG_SND_SOC_STA32X=m ++CONFIG_SND_SOC_STA350=m ++CONFIG_SND_SOC_STI_SAS=m ++CONFIG_SND_SOC_TAS2552=m ++CONFIG_SND_SOC_TAS2562=m ++# CONFIG_SND_SOC_TAS2764 is not set ++CONFIG_SND_SOC_TAS2770=m ++CONFIG_SND_SOC_TAS5086=m ++CONFIG_SND_SOC_TAS571X=m ++CONFIG_SND_SOC_TAS5720=m ++CONFIG_SND_SOC_TAS6424=m ++CONFIG_SND_SOC_TDA7419=m ++CONFIG_SND_SOC_TFA9879=m ++# CONFIG_SND_SOC_TFA989X is not set ++CONFIG_SND_SOC_TLV320AIC23=m ++CONFIG_SND_SOC_TLV320AIC23_I2C=m ++CONFIG_SND_SOC_TLV320AIC23_SPI=m ++CONFIG_SND_SOC_TLV320AIC31XX=m ++CONFIG_SND_SOC_TLV320AIC32X4=m ++CONFIG_SND_SOC_TLV320AIC32X4_I2C=m ++CONFIG_SND_SOC_TLV320AIC32X4_SPI=m ++# CONFIG_SND_SOC_TLV320AIC3X_I2C is not set ++# CONFIG_SND_SOC_TLV320AIC3X_SPI is not set ++CONFIG_SND_SOC_TLV320ADCX140=m ++CONFIG_SND_SOC_TS3A227E=m ++CONFIG_SND_SOC_TSCS42XX=m ++CONFIG_SND_SOC_TSCS454=m ++CONFIG_SND_SOC_UDA1334=m ++CONFIG_SND_SOC_WM8510=m ++CONFIG_SND_SOC_WM8523=m ++CONFIG_SND_SOC_WM8524=m ++CONFIG_SND_SOC_WM8580=m ++CONFIG_SND_SOC_WM8711=m ++CONFIG_SND_SOC_WM8728=m ++CONFIG_SND_SOC_WM8731=m ++CONFIG_SND_SOC_WM8737=m ++CONFIG_SND_SOC_WM8741=m ++CONFIG_SND_SOC_WM8750=m ++CONFIG_SND_SOC_WM8753=m ++CONFIG_SND_SOC_WM8770=m ++CONFIG_SND_SOC_WM8776=m ++CONFIG_SND_SOC_WM8782=m ++CONFIG_SND_SOC_WM8804=m ++CONFIG_SND_SOC_WM8804_I2C=m ++CONFIG_SND_SOC_WM8804_SPI=m ++CONFIG_SND_SOC_WM8903=m ++CONFIG_SND_SOC_WM8904=m ++CONFIG_SND_SOC_WM8960=m ++CONFIG_SND_SOC_WM8962=m ++CONFIG_SND_SOC_WM8974=m ++CONFIG_SND_SOC_WM8978=m ++CONFIG_SND_SOC_WM8985=m ++# CONFIG_SND_SOC_ZL38060 is not set ++CONFIG_SND_SOC_MAX9759=m ++CONFIG_SND_SOC_MT6351=m ++CONFIG_SND_SOC_MT6358=m ++CONFIG_SND_SOC_MT6660=m ++# CONFIG_SND_SOC_NAU8315 is not set ++CONFIG_SND_SOC_NAU8540=m ++CONFIG_SND_SOC_NAU8810=m ++CONFIG_SND_SOC_NAU8822=m ++CONFIG_SND_SOC_NAU8824=m ++CONFIG_SND_SOC_TPA6130A2=m ++# CONFIG_SND_SOC_LPASS_WSA_MACRO is not set ++# CONFIG_SND_SOC_LPASS_VA_MACRO is not set ++# CONFIG_SND_SOC_LPASS_RX_MACRO is not set ++# CONFIG_SND_SOC_LPASS_TX_MACRO is not set ++# end of CODEC drivers ++ ++CONFIG_SND_SIMPLE_CARD_UTILS=m ++CONFIG_SND_SIMPLE_CARD=m ++CONFIG_SND_AUDIO_GRAPH_CARD=m ++CONFIG_SND_SYNTH_EMUX=m ++# CONFIG_SND_VIRTIO is not set ++CONFIG_AC97_BUS=m ++ ++# ++# HID support ++# ++CONFIG_HID=y ++CONFIG_HID_BATTERY_STRENGTH=y ++CONFIG_HIDRAW=y ++CONFIG_UHID=m ++CONFIG_HID_GENERIC=y ++ ++# ++# Special HID drivers ++# ++CONFIG_HID_A4TECH=m ++CONFIG_HID_ACCUTOUCH=m ++CONFIG_HID_ACRUX=m ++CONFIG_HID_ACRUX_FF=y ++CONFIG_HID_APPLE=m ++CONFIG_HID_APPLEIR=m ++# CONFIG_HID_ASUS is not set ++CONFIG_HID_AUREAL=m ++CONFIG_HID_BELKIN=m ++CONFIG_HID_BETOP_FF=m ++CONFIG_HID_BIGBEN_FF=m ++CONFIG_HID_CHERRY=m ++CONFIG_HID_CHICONY=m ++CONFIG_HID_CORSAIR=m ++CONFIG_HID_COUGAR=m ++CONFIG_HID_MACALLY=m ++CONFIG_HID_PRODIKEYS=m ++CONFIG_HID_CMEDIA=m ++CONFIG_HID_CP2112=m ++CONFIG_HID_CREATIVE_SB0540=m ++CONFIG_HID_CYPRESS=m ++CONFIG_HID_DRAGONRISE=m ++CONFIG_DRAGONRISE_FF=y ++CONFIG_HID_EMS_FF=m ++CONFIG_HID_ELAN=m ++CONFIG_HID_ELECOM=m ++CONFIG_HID_ELO=m ++CONFIG_HID_EZKEY=m ++# CONFIG_HID_FT260 is not set ++CONFIG_HID_GEMBIRD=m ++CONFIG_HID_GFRM=m ++CONFIG_HID_GLORIOUS=m ++CONFIG_HID_HOLTEK=m ++CONFIG_HOLTEK_FF=y ++# CONFIG_HID_VIVALDI is not set ++CONFIG_HID_GT683R=m ++CONFIG_HID_KEYTOUCH=m ++CONFIG_HID_KYE=m ++CONFIG_HID_UCLOGIC=m ++CONFIG_HID_WALTOP=m ++CONFIG_HID_VIEWSONIC=m ++CONFIG_HID_GYRATION=m ++CONFIG_HID_ICADE=m ++CONFIG_HID_ITE=m ++CONFIG_HID_JABRA=m ++CONFIG_HID_TWINHAN=m ++CONFIG_HID_KENSINGTON=m ++CONFIG_HID_LCPOWER=m ++CONFIG_HID_LED=m ++CONFIG_HID_LENOVO=m ++CONFIG_HID_LOGITECH=m ++CONFIG_HID_LOGITECH_DJ=m ++CONFIG_HID_LOGITECH_HIDPP=m ++CONFIG_LOGITECH_FF=y ++CONFIG_LOGIRUMBLEPAD2_FF=y ++CONFIG_LOGIG940_FF=y ++CONFIG_LOGIWHEELS_FF=y ++CONFIG_HID_MAGICMOUSE=m ++CONFIG_HID_MALTRON=m ++# CONFIG_HID_MAYFLASH is not set ++CONFIG_HID_REDRAGON=m ++CONFIG_HID_MICROSOFT=m ++CONFIG_HID_MONTEREY=m ++CONFIG_HID_MULTITOUCH=m ++CONFIG_HID_NTI=m ++CONFIG_HID_NTRIG=m ++CONFIG_HID_ORTEK=m ++CONFIG_HID_PANTHERLORD=m ++CONFIG_PANTHERLORD_FF=y ++CONFIG_HID_PENMOUNT=m ++CONFIG_HID_PETALYNX=m ++CONFIG_HID_PICOLCD=m ++CONFIG_HID_PICOLCD_FB=y ++CONFIG_HID_PICOLCD_BACKLIGHT=y ++CONFIG_HID_PICOLCD_LCD=y ++CONFIG_HID_PICOLCD_LEDS=y ++CONFIG_HID_PICOLCD_CIR=y ++CONFIG_HID_PLANTRONICS=m ++# CONFIG_HID_PLAYSTATION is not set ++CONFIG_HID_PRIMAX=m ++CONFIG_HID_RETRODE=m ++CONFIG_HID_ROCCAT=m ++CONFIG_HID_SAITEK=m ++CONFIG_HID_SAMSUNG=m ++# CONFIG_HID_SEMITEK is not set ++CONFIG_HID_SONY=m ++CONFIG_SONY_FF=y ++CONFIG_HID_SPEEDLINK=m ++CONFIG_HID_STEAM=m ++CONFIG_HID_STEELSERIES=m ++CONFIG_HID_SUNPLUS=m ++CONFIG_HID_RMI=m ++CONFIG_HID_GREENASIA=m ++CONFIG_GREENASIA_FF=y ++CONFIG_HID_SMARTJOYPLUS=m ++CONFIG_SMARTJOYPLUS_FF=y ++CONFIG_HID_TIVO=m ++CONFIG_HID_TOPSEED=m ++CONFIG_HID_THINGM=m ++CONFIG_HID_THRUSTMASTER=m ++CONFIG_THRUSTMASTER_FF=y ++CONFIG_HID_UDRAW_PS3=m ++CONFIG_HID_U2FZERO=m ++CONFIG_HID_WACOM=m ++CONFIG_HID_WIIMOTE=m ++CONFIG_HID_XINMO=m ++CONFIG_HID_ZEROPLUS=m ++CONFIG_ZEROPLUS_FF=y ++CONFIG_HID_ZYDACRON=m ++CONFIG_HID_SENSOR_HUB=m ++CONFIG_HID_SENSOR_CUSTOM_SENSOR=m ++CONFIG_HID_ALPS=m ++CONFIG_HID_MCP2221=m ++# end of Special HID drivers ++ ++# ++# USB HID support ++# ++CONFIG_USB_HID=y ++CONFIG_HID_PID=y ++CONFIG_USB_HIDDEV=y ++# end of USB HID support ++ ++# ++# I2C HID support ++# ++# CONFIG_I2C_HID_OF is not set ++# CONFIG_I2C_HID_OF_GOODIX is not set ++# end of I2C HID support ++# end of HID support ++ ++CONFIG_USB_OHCI_LITTLE_ENDIAN=y ++CONFIG_USB_SUPPORT=y ++CONFIG_USB_COMMON=y ++CONFIG_USB_LED_TRIG=y ++CONFIG_USB_ULPI_BUS=y ++CONFIG_USB_CONN_GPIO=m ++CONFIG_USB_ARCH_HAS_HCD=y ++CONFIG_USB=y ++CONFIG_USB_PCI=y ++CONFIG_USB_ANNOUNCE_NEW_DEVICES=y ++ ++# ++# Miscellaneous USB options ++# ++CONFIG_USB_DEFAULT_PERSIST=y ++# CONFIG_USB_FEW_INIT_RETRIES is not set ++# CONFIG_USB_DYNAMIC_MINORS is not set ++CONFIG_USB_OTG=y ++# CONFIG_USB_OTG_PRODUCTLIST is not set ++# CONFIG_USB_OTG_DISABLE_EXTERNAL_HUB is not set ++CONFIG_USB_OTG_FSM=m ++CONFIG_USB_LEDS_TRIGGER_USBPORT=y ++CONFIG_USB_AUTOSUSPEND_DELAY=2 ++CONFIG_USB_MON=m ++ ++# ++# USB Host Controller Drivers ++# ++# CONFIG_USB_C67X00_HCD is not set ++CONFIG_USB_XHCI_HCD=y ++# CONFIG_USB_XHCI_DBGCAP is not set ++CONFIG_USB_XHCI_PCI=y ++# CONFIG_USB_XHCI_PCI_RENESAS is not set ++CONFIG_USB_XHCI_PLATFORM=y ++CONFIG_USB_EHCI_HCD=y ++CONFIG_USB_EHCI_ROOT_HUB_TT=y ++CONFIG_USB_EHCI_TT_NEWSCHED=y ++CONFIG_USB_EHCI_PCI=y ++CONFIG_USB_EHCI_FSL=m ++CONFIG_USB_EHCI_HCD_PLATFORM=y ++CONFIG_USB_OXU210HP_HCD=m ++CONFIG_USB_ISP116X_HCD=m ++CONFIG_USB_FOTG210_HCD=m ++CONFIG_USB_MAX3421_HCD=m ++CONFIG_USB_OHCI_HCD=y ++CONFIG_USB_OHCI_HCD_PCI=y ++# CONFIG_USB_OHCI_HCD_SSB is not set ++CONFIG_USB_OHCI_HCD_PLATFORM=y ++# CONFIG_USB_UHCI_HCD is not set ++# CONFIG_USB_U132_HCD is not set ++# CONFIG_USB_SL811_HCD is not set ++# CONFIG_USB_R8A66597_HCD is not set ++CONFIG_USB_HCD_BCMA=m ++CONFIG_USB_HCD_SSB=m ++# CONFIG_USB_HCD_TEST_MODE is not set ++ ++# ++# USB Device Class drivers ++# ++CONFIG_USB_ACM=m ++CONFIG_USB_PRINTER=m ++CONFIG_USB_WDM=m ++CONFIG_USB_TMC=m ++ ++# ++# NOTE: USB_STORAGE depends on SCSI but BLK_DEV_SD may ++# ++ ++# ++# also be needed; see USB_STORAGE Help for more info ++# ++CONFIG_USB_STORAGE=y ++# CONFIG_USB_STORAGE_DEBUG is not set ++CONFIG_USB_STORAGE_REALTEK=m ++# CONFIG_REALTEK_AUTOPM is not set ++CONFIG_USB_STORAGE_DATAFAB=m ++CONFIG_USB_STORAGE_FREECOM=m ++CONFIG_USB_STORAGE_ISD200=m ++CONFIG_USB_STORAGE_USBAT=m ++CONFIG_USB_STORAGE_SDDR09=m ++CONFIG_USB_STORAGE_SDDR55=m ++CONFIG_USB_STORAGE_JUMPSHOT=m ++CONFIG_USB_STORAGE_ALAUDA=m ++CONFIG_USB_STORAGE_ONETOUCH=m ++CONFIG_USB_STORAGE_KARMA=m ++CONFIG_USB_STORAGE_CYPRESS_ATACB=m ++CONFIG_USB_STORAGE_ENE_UB6250=m ++CONFIG_USB_UAS=y ++ ++# ++# USB Imaging devices ++# ++CONFIG_USB_MDC800=m ++CONFIG_USB_MICROTEK=m ++CONFIG_USBIP_CORE=m ++CONFIG_USBIP_VHCI_HCD=m ++CONFIG_USBIP_VHCI_HC_PORTS=8 ++CONFIG_USBIP_VHCI_NR_HCS=1 ++CONFIG_USBIP_HOST=m ++CONFIG_USBIP_VUDC=m ++# CONFIG_USBIP_DEBUG is not set ++# CONFIG_USB_CDNS_SUPPORT is not set ++# CONFIG_USB_MUSB_HDRC is not set ++CONFIG_USB_DWC3=y ++# CONFIG_USB_DWC3_ULPI is not set ++# CONFIG_USB_DWC3_HOST is not set ++# CONFIG_USB_DWC3_GADGET is not set ++CONFIG_USB_DWC3_DUAL_ROLE=y ++ ++# ++# Platform Glue Driver Support ++# ++CONFIG_USB_DWC3_HAPS=y ++CONFIG_USB_DWC3_OF_SIMPLE=y ++CONFIG_USB_DWC2=y ++# CONFIG_USB_DWC2_HOST is not set ++ ++# ++# Gadget/Dual-role mode requires USB Gadget support to be enabled ++# ++# CONFIG_USB_DWC2_PERIPHERAL is not set ++CONFIG_USB_DWC2_DUAL_ROLE=y ++CONFIG_USB_DWC2_PCI=m ++# CONFIG_USB_DWC2_DEBUG is not set ++# CONFIG_USB_DWC2_TRACK_MISSED_SOFS is not set ++CONFIG_USB_CHIPIDEA=y ++CONFIG_USB_CHIPIDEA_UDC=y ++CONFIG_USB_CHIPIDEA_HOST=y ++CONFIG_USB_CHIPIDEA_PCI=y ++CONFIG_USB_CHIPIDEA_MSM=y ++CONFIG_USB_CHIPIDEA_IMX=y ++CONFIG_USB_CHIPIDEA_GENERIC=y ++CONFIG_USB_CHIPIDEA_TEGRA=y ++CONFIG_USB_ISP1760=y ++CONFIG_USB_ISP1760_HCD=y ++CONFIG_USB_ISP1761_UDC=y ++# CONFIG_USB_ISP1760_HOST_ROLE is not set ++# CONFIG_USB_ISP1760_GADGET_ROLE is not set ++CONFIG_USB_ISP1760_DUAL_ROLE=y ++ ++# ++# USB port drivers ++# ++CONFIG_USB_SERIAL=m ++CONFIG_USB_SERIAL_GENERIC=y ++CONFIG_USB_SERIAL_SIMPLE=m ++CONFIG_USB_SERIAL_AIRCABLE=m ++CONFIG_USB_SERIAL_ARK3116=m ++CONFIG_USB_SERIAL_BELKIN=m ++CONFIG_USB_SERIAL_CH341=m ++CONFIG_USB_SERIAL_WHITEHEAT=m ++CONFIG_USB_SERIAL_DIGI_ACCELEPORT=m ++CONFIG_USB_SERIAL_CP210X=m ++CONFIG_USB_SERIAL_CYPRESS_M8=m ++CONFIG_USB_SERIAL_EMPEG=m ++CONFIG_USB_SERIAL_FTDI_SIO=m ++CONFIG_USB_SERIAL_VISOR=m ++CONFIG_USB_SERIAL_IPAQ=m ++CONFIG_USB_SERIAL_IR=m ++CONFIG_USB_SERIAL_EDGEPORT=m ++CONFIG_USB_SERIAL_EDGEPORT_TI=m ++CONFIG_USB_SERIAL_F81232=m ++CONFIG_USB_SERIAL_F8153X=m ++CONFIG_USB_SERIAL_GARMIN=m ++CONFIG_USB_SERIAL_IPW=m ++CONFIG_USB_SERIAL_IUU=m ++CONFIG_USB_SERIAL_KEYSPAN_PDA=m ++CONFIG_USB_SERIAL_KEYSPAN=m ++CONFIG_USB_SERIAL_KLSI=m ++CONFIG_USB_SERIAL_KOBIL_SCT=m ++CONFIG_USB_SERIAL_MCT_U232=m ++CONFIG_USB_SERIAL_METRO=m ++CONFIG_USB_SERIAL_MOS7720=m ++CONFIG_USB_SERIAL_MOS7840=m ++CONFIG_USB_SERIAL_MXUPORT=m ++CONFIG_USB_SERIAL_NAVMAN=m ++CONFIG_USB_SERIAL_PL2303=m ++CONFIG_USB_SERIAL_OTI6858=m ++CONFIG_USB_SERIAL_QCAUX=m ++CONFIG_USB_SERIAL_QUALCOMM=m ++CONFIG_USB_SERIAL_SPCP8X5=m ++CONFIG_USB_SERIAL_SAFE=m ++# CONFIG_USB_SERIAL_SAFE_PADDED is not set ++CONFIG_USB_SERIAL_SIERRAWIRELESS=m ++CONFIG_USB_SERIAL_SYMBOL=m ++CONFIG_USB_SERIAL_TI=m ++CONFIG_USB_SERIAL_CYBERJACK=m ++CONFIG_USB_SERIAL_WWAN=m ++CONFIG_USB_SERIAL_OPTION=m ++CONFIG_USB_SERIAL_OMNINET=m ++CONFIG_USB_SERIAL_OPTICON=m ++CONFIG_USB_SERIAL_XSENS_MT=m ++CONFIG_USB_SERIAL_WISHBONE=m ++CONFIG_USB_SERIAL_SSU100=m ++CONFIG_USB_SERIAL_QT2=m ++CONFIG_USB_SERIAL_UPD78F0730=m ++# CONFIG_USB_SERIAL_XR is not set ++CONFIG_USB_SERIAL_DEBUG=m ++ ++# ++# USB Miscellaneous drivers ++# ++CONFIG_USB_EMI62=m ++CONFIG_USB_EMI26=m ++CONFIG_USB_ADUTUX=m ++CONFIG_USB_SEVSEG=m ++CONFIG_USB_LEGOTOWER=m ++CONFIG_USB_LCD=m ++CONFIG_USB_CYPRESS_CY7C63=m ++CONFIG_USB_CYTHERM=m ++CONFIG_USB_IDMOUSE=m ++CONFIG_USB_FTDI_ELAN=m ++CONFIG_USB_APPLEDISPLAY=m ++CONFIG_APPLE_MFI_FASTCHARGE=m ++CONFIG_USB_SISUSBVGA=m ++CONFIG_USB_LD=m ++CONFIG_USB_TRANCEVIBRATOR=m ++CONFIG_USB_IOWARRIOR=m ++CONFIG_USB_TEST=m ++CONFIG_USB_EHSET_TEST_FIXTURE=m ++CONFIG_USB_ISIGHTFW=m ++CONFIG_USB_YUREX=m ++CONFIG_USB_EZUSB_FX2=m ++CONFIG_USB_HUB_USB251XB=m ++CONFIG_USB_HSIC_USB3503=y ++# CONFIG_USB_HSIC_USB4604 is not set ++CONFIG_USB_LINK_LAYER_TEST=m ++CONFIG_USB_CHAOSKEY=m ++ ++# ++# USB Physical Layer drivers ++# ++CONFIG_USB_PHY=y ++CONFIG_NOP_USB_XCEIV=y ++# CONFIG_USB_GPIO_VBUS is not set ++# CONFIG_USB_ISP1301 is not set ++CONFIG_USB_ULPI=y ++CONFIG_USB_ULPI_VIEWPORT=y ++# end of USB Physical Layer drivers ++ ++CONFIG_USB_GADGET=y ++# CONFIG_USB_GADGET_DEBUG is not set ++# CONFIG_USB_GADGET_DEBUG_FILES is not set ++# CONFIG_USB_GADGET_DEBUG_FS is not set ++CONFIG_USB_GADGET_VBUS_DRAW=2 ++CONFIG_USB_GADGET_STORAGE_NUM_BUFFERS=2 ++CONFIG_U_SERIAL_CONSOLE=y ++ ++# ++# USB Peripheral Controller ++# ++# CONFIG_USB_FOTG210_UDC is not set ++# CONFIG_USB_GR_UDC is not set ++# CONFIG_USB_R8A66597 is not set ++# CONFIG_USB_PXA27X is not set ++# CONFIG_USB_MV_UDC is not set ++# CONFIG_USB_MV_U3D is not set ++CONFIG_USB_SNP_CORE=m ++# CONFIG_USB_SNP_UDC_PLAT is not set ++# CONFIG_USB_M66592 is not set ++# CONFIG_USB_BDC_UDC is not set ++CONFIG_USB_AMD5536UDC=m ++# CONFIG_USB_NET2272 is not set ++CONFIG_USB_NET2280=m ++CONFIG_USB_GOKU=m ++CONFIG_USB_EG20T=m ++# CONFIG_USB_GADGET_XILINX is not set ++CONFIG_USB_MAX3420_UDC=m ++# CONFIG_USB_DUMMY_HCD is not set ++# end of USB Peripheral Controller ++ ++CONFIG_USB_LIBCOMPOSITE=m ++CONFIG_USB_F_ACM=m ++CONFIG_USB_F_SS_LB=m ++CONFIG_USB_U_SERIAL=m ++CONFIG_USB_U_ETHER=m ++CONFIG_USB_U_AUDIO=m ++CONFIG_USB_F_SERIAL=m ++CONFIG_USB_F_OBEX=m ++CONFIG_USB_F_NCM=m ++CONFIG_USB_F_ECM=m ++CONFIG_USB_F_EEM=m ++CONFIG_USB_F_SUBSET=m ++CONFIG_USB_F_RNDIS=m ++CONFIG_USB_F_MASS_STORAGE=m ++CONFIG_USB_F_FS=m ++CONFIG_USB_F_UAC1=m ++CONFIG_USB_F_UAC2=m ++CONFIG_USB_F_UVC=m ++CONFIG_USB_F_MIDI=m ++CONFIG_USB_F_HID=m ++CONFIG_USB_F_PRINTER=m ++CONFIG_USB_F_TCM=m ++CONFIG_USB_CONFIGFS=m ++CONFIG_USB_CONFIGFS_SERIAL=y ++CONFIG_USB_CONFIGFS_ACM=y ++CONFIG_USB_CONFIGFS_OBEX=y ++CONFIG_USB_CONFIGFS_NCM=y ++CONFIG_USB_CONFIGFS_ECM=y ++CONFIG_USB_CONFIGFS_ECM_SUBSET=y ++CONFIG_USB_CONFIGFS_RNDIS=y ++CONFIG_USB_CONFIGFS_EEM=y ++CONFIG_USB_CONFIGFS_MASS_STORAGE=y ++CONFIG_USB_CONFIGFS_F_LB_SS=y ++CONFIG_USB_CONFIGFS_F_FS=y ++CONFIG_USB_CONFIGFS_F_UAC1=y ++# CONFIG_USB_CONFIGFS_F_UAC1_LEGACY is not set ++CONFIG_USB_CONFIGFS_F_UAC2=y ++CONFIG_USB_CONFIGFS_F_MIDI=y ++CONFIG_USB_CONFIGFS_F_HID=y ++CONFIG_USB_CONFIGFS_F_UVC=y ++CONFIG_USB_CONFIGFS_F_PRINTER=y ++CONFIG_USB_CONFIGFS_F_TCM=y ++ ++# ++# USB Gadget precomposed configurations ++# ++CONFIG_USB_ZERO=m ++# CONFIG_USB_ZERO_HNPTEST is not set ++CONFIG_USB_AUDIO=m ++# CONFIG_GADGET_UAC1 is not set ++CONFIG_USB_ETH=m ++CONFIG_USB_ETH_RNDIS=y ++CONFIG_USB_ETH_EEM=y ++CONFIG_USB_G_NCM=m ++CONFIG_USB_GADGETFS=m ++CONFIG_USB_FUNCTIONFS=m ++CONFIG_USB_FUNCTIONFS_ETH=y ++CONFIG_USB_FUNCTIONFS_RNDIS=y ++CONFIG_USB_FUNCTIONFS_GENERIC=y ++CONFIG_USB_MASS_STORAGE=m ++CONFIG_USB_GADGET_TARGET=m ++CONFIG_USB_G_SERIAL=m ++CONFIG_USB_MIDI_GADGET=m ++CONFIG_USB_G_PRINTER=m ++CONFIG_USB_CDC_COMPOSITE=m ++CONFIG_USB_G_ACM_MS=m ++CONFIG_USB_G_MULTI=m ++CONFIG_USB_G_MULTI_RNDIS=y ++CONFIG_USB_G_MULTI_CDC=y ++CONFIG_USB_G_HID=m ++# CONFIG_USB_G_DBGP is not set ++CONFIG_USB_G_WEBCAM=m ++CONFIG_USB_RAW_GADGET=m ++# end of USB Gadget precomposed configurations ++ ++CONFIG_TYPEC=m ++CONFIG_TYPEC_TCPM=m ++CONFIG_TYPEC_TCPCI=m ++CONFIG_TYPEC_RT1711H=m ++# CONFIG_TYPEC_TCPCI_MAXIM is not set ++CONFIG_TYPEC_FUSB302=m ++CONFIG_TYPEC_UCSI=m ++CONFIG_UCSI_CCG=m ++CONFIG_TYPEC_TPS6598X=m ++CONFIG_TYPEC_HD3SS3220=m ++# CONFIG_TYPEC_STUSB160X is not set ++ ++# ++# USB Type-C Multiplexer/DeMultiplexer Switch support ++# ++CONFIG_TYPEC_MUX_PI3USB30532=m ++# end of USB Type-C Multiplexer/DeMultiplexer Switch support ++ ++# ++# USB Type-C Alternate Mode drivers ++# ++CONFIG_TYPEC_DP_ALTMODE=m ++# CONFIG_TYPEC_NVIDIA_ALTMODE is not set ++# end of USB Type-C Alternate Mode drivers ++ ++CONFIG_USB_ROLE_SWITCH=y ++CONFIG_MMC=y ++CONFIG_PWRSEQ_EMMC=y ++CONFIG_PWRSEQ_SD8787=m ++CONFIG_PWRSEQ_SIMPLE=y ++CONFIG_MMC_BLOCK=y ++CONFIG_MMC_BLOCK_MINORS=32 ++# CONFIG_SDIO_UART is not set ++# CONFIG_MMC_TEST is not set ++ ++# ++# MMC/SD/SDIO Host Controller Drivers ++# ++# CONFIG_MMC_DEBUG is not set ++CONFIG_MMC_ARMMMCI=y ++CONFIG_MMC_STM32_SDMMC=y ++CONFIG_MMC_SDHCI=y ++CONFIG_MMC_SDHCI_IO_ACCESSORS=y ++# CONFIG_MMC_SDHCI_PCI is not set ++CONFIG_MMC_SDHCI_PLTFM=y ++CONFIG_MMC_SDHCI_OF_ARASAN=y ++CONFIG_MMC_SDHCI_OF_ASPEED=m ++# CONFIG_MMC_SDHCI_OF_AT91 is not set ++# CONFIG_MMC_SDHCI_OF_DWCMSHC is not set ++CONFIG_MMC_SDHCI_CADENCE=y ++# CONFIG_MMC_SDHCI_F_SDH30 is not set ++CONFIG_MMC_SDHCI_MILBEAUT=m ++CONFIG_MMC_ALCOR=m ++# CONFIG_MMC_TIFM_SD is not set ++CONFIG_MMC_SPI=y ++# CONFIG_MMC_CB710 is not set ++# CONFIG_MMC_VIA_SDMMC is not set ++CONFIG_MMC_DW=y ++CONFIG_MMC_DW_PLTFM=y ++# CONFIG_MMC_DW_BLUEFIELD is not set ++CONFIG_MMC_DW_EXYNOS=y ++CONFIG_MMC_DW_HI3798CV200=m ++CONFIG_MMC_DW_K3=y ++# CONFIG_MMC_DW_PCI is not set ++CONFIG_MMC_DW_ROCKCHIP=y ++# CONFIG_MMC_VUB300 is not set ++# CONFIG_MMC_USHC is not set ++# CONFIG_MMC_USDHI6ROL0 is not set ++CONFIG_MMC_REALTEK_PCI=m ++CONFIG_MMC_REALTEK_USB=m ++CONFIG_MMC_CQHCI=y ++CONFIG_MMC_HSQ=m ++# CONFIG_MMC_TOSHIBA_PCI is not set ++# CONFIG_MMC_MTK is not set ++CONFIG_MMC_SDHCI_XENON=y ++# CONFIG_MMC_SDHCI_OMAP is not set ++CONFIG_MMC_SDHCI_AM654=m ++# CONFIG_MEMSTICK is not set ++CONFIG_NEW_LEDS=y ++CONFIG_LEDS_CLASS=y ++# CONFIG_LEDS_CLASS_FLASH is not set ++# CONFIG_LEDS_CLASS_MULTICOLOR is not set ++# CONFIG_LEDS_BRIGHTNESS_HW_CHANGED is not set ++ ++# ++# LED drivers ++# ++CONFIG_LEDS_AN30259A=m ++# CONFIG_LEDS_AW2013 is not set ++# CONFIG_LEDS_BCM6328 is not set ++# CONFIG_LEDS_BCM6358 is not set ++CONFIG_LEDS_CR0014114=m ++CONFIG_LEDS_EL15203000=m ++# CONFIG_LEDS_LM3530 is not set ++CONFIG_LEDS_LM3532=m ++CONFIG_LEDS_LM3533=m ++# CONFIG_LEDS_LM3642 is not set ++CONFIG_LEDS_LM3692X=m ++# CONFIG_LEDS_PCA9532 is not set ++CONFIG_LEDS_GPIO=y ++# CONFIG_LEDS_LP3944 is not set ++# CONFIG_LEDS_LP3952 is not set ++# CONFIG_LEDS_LP50XX is not set ++# CONFIG_LEDS_LP55XX_COMMON is not set ++# CONFIG_LEDS_LP8860 is not set ++# CONFIG_LEDS_PCA955X is not set ++# CONFIG_LEDS_PCA963X is not set ++# CONFIG_LEDS_DAC124S085 is not set ++CONFIG_LEDS_PWM=m ++CONFIG_LEDS_REGULATOR=m ++# CONFIG_LEDS_BD2802 is not set ++# CONFIG_LEDS_LT3593 is not set ++CONFIG_LEDS_ADP5520=m ++# CONFIG_LEDS_TCA6507 is not set ++# CONFIG_LEDS_TLC591XX is not set ++CONFIG_LEDS_MAX77650=m ++# CONFIG_LEDS_LM355x is not set ++# CONFIG_LEDS_IS31FL319X is not set ++# CONFIG_LEDS_IS31FL32XX is not set ++ ++# ++# LED driver for blink(1) USB RGB LED is under Special HID drivers (HID_THINGM) ++# ++# CONFIG_LEDS_BLINKM is not set ++CONFIG_LEDS_SYSCON=y ++CONFIG_LEDS_MLXREG=m ++CONFIG_LEDS_USER=y ++# CONFIG_LEDS_SPI_BYTE is not set ++# CONFIG_LEDS_TI_LMU_COMMON is not set ++ ++# ++# Flash and Torch LED drivers ++# ++ ++# ++# LED Triggers ++# ++CONFIG_LEDS_TRIGGERS=y ++CONFIG_LEDS_TRIGGER_TIMER=m ++CONFIG_LEDS_TRIGGER_ONESHOT=m ++CONFIG_LEDS_TRIGGER_DISK=y ++CONFIG_LEDS_TRIGGER_MTD=y ++CONFIG_LEDS_TRIGGER_HEARTBEAT=y ++CONFIG_LEDS_TRIGGER_BACKLIGHT=m ++CONFIG_LEDS_TRIGGER_CPU=y ++CONFIG_LEDS_TRIGGER_ACTIVITY=y ++CONFIG_LEDS_TRIGGER_GPIO=m ++CONFIG_LEDS_TRIGGER_DEFAULT_ON=y ++ ++# ++# iptables trigger is under Netfilter config (LED target) ++# ++CONFIG_LEDS_TRIGGER_TRANSIENT=m ++CONFIG_LEDS_TRIGGER_CAMERA=m ++CONFIG_LEDS_TRIGGER_PANIC=y ++CONFIG_LEDS_TRIGGER_NETDEV=m ++CONFIG_LEDS_TRIGGER_PATTERN=m ++CONFIG_LEDS_TRIGGER_AUDIO=m ++# CONFIG_LEDS_TRIGGER_TTY is not set ++# CONFIG_ACCESSIBILITY is not set ++# CONFIG_INFINIBAND is not set ++CONFIG_EDAC_SUPPORT=y ++CONFIG_EDAC=y ++CONFIG_EDAC_LEGACY_SYSFS=y ++# CONFIG_EDAC_DEBUG is not set ++# CONFIG_EDAC_THUNDERX is not set ++# CONFIG_EDAC_XGENE is not set ++CONFIG_EDAC_DMC520=m ++CONFIG_RTC_LIB=y ++CONFIG_RTC_CLASS=y ++CONFIG_RTC_HCTOSYS=y ++CONFIG_RTC_HCTOSYS_DEVICE="rtc0" ++CONFIG_RTC_SYSTOHC=y ++CONFIG_RTC_SYSTOHC_DEVICE="rtc0" ++# CONFIG_RTC_DEBUG is not set ++# CONFIG_RTC_LIB_KUNIT_TEST is not set ++CONFIG_RTC_NVMEM=y ++ ++# ++# RTC interfaces ++# ++CONFIG_RTC_INTF_SYSFS=y ++CONFIG_RTC_INTF_PROC=y ++CONFIG_RTC_INTF_DEV=y ++# CONFIG_RTC_INTF_DEV_UIE_EMUL is not set ++# CONFIG_RTC_DRV_TEST is not set ++ ++# ++# I2C RTC drivers ++# ++# CONFIG_RTC_DRV_ABB5ZES3 is not set ++# CONFIG_RTC_DRV_ABEOZ9 is not set ++# CONFIG_RTC_DRV_ABX80X is not set ++CONFIG_RTC_DRV_AS3722=m ++CONFIG_RTC_DRV_DS1307=y ++# CONFIG_RTC_DRV_DS1307_CENTURY is not set ++# CONFIG_RTC_DRV_DS1374 is not set ++# CONFIG_RTC_DRV_DS1672 is not set ++CONFIG_RTC_DRV_HYM8563=y ++# CONFIG_RTC_DRV_MAX6900 is not set ++CONFIG_RTC_DRV_MAX77686=y ++CONFIG_RTC_DRV_RK808=y ++# CONFIG_RTC_DRV_RS5C372 is not set ++# CONFIG_RTC_DRV_ISL1208 is not set ++# CONFIG_RTC_DRV_ISL12022 is not set ++CONFIG_RTC_DRV_ISL12026=m ++CONFIG_RTC_DRV_X1205=m ++CONFIG_RTC_DRV_PCF8523=m ++CONFIG_RTC_DRV_PCF85063=m ++CONFIG_RTC_DRV_PCF85363=m ++CONFIG_RTC_DRV_PCF8563=m ++CONFIG_RTC_DRV_PCF8583=m ++CONFIG_RTC_DRV_M41T80=m ++CONFIG_RTC_DRV_M41T80_WDT=y ++CONFIG_RTC_DRV_BD70528=m ++CONFIG_RTC_DRV_BQ32K=m ++CONFIG_RTC_DRV_RC5T583=m ++CONFIG_RTC_DRV_RC5T619=m ++CONFIG_RTC_DRV_S35390A=m ++CONFIG_RTC_DRV_FM3130=m ++CONFIG_RTC_DRV_RX8010=m ++CONFIG_RTC_DRV_RX8581=m ++CONFIG_RTC_DRV_RX8025=m ++CONFIG_RTC_DRV_EM3027=m ++CONFIG_RTC_DRV_RV3028=m ++# CONFIG_RTC_DRV_RV3032 is not set ++CONFIG_RTC_DRV_RV8803=m ++CONFIG_RTC_DRV_SD3078=m ++ ++# ++# SPI RTC drivers ++# ++CONFIG_RTC_DRV_M41T93=m ++CONFIG_RTC_DRV_M41T94=m ++CONFIG_RTC_DRV_DS1302=m ++CONFIG_RTC_DRV_DS1305=m ++CONFIG_RTC_DRV_DS1343=m ++CONFIG_RTC_DRV_DS1347=m ++CONFIG_RTC_DRV_DS1390=m ++CONFIG_RTC_DRV_MAX6916=m ++CONFIG_RTC_DRV_R9701=m ++CONFIG_RTC_DRV_RX4581=m ++CONFIG_RTC_DRV_RS5C348=m ++CONFIG_RTC_DRV_MAX6902=m ++CONFIG_RTC_DRV_PCF2123=m ++CONFIG_RTC_DRV_MCP795=m ++CONFIG_RTC_I2C_AND_SPI=y ++ ++# ++# SPI and I2C RTC drivers ++# ++CONFIG_RTC_DRV_DS3232=m ++CONFIG_RTC_DRV_DS3232_HWMON=y ++CONFIG_RTC_DRV_PCF2127=y ++CONFIG_RTC_DRV_RV3029C2=m ++CONFIG_RTC_DRV_RV3029_HWMON=y ++CONFIG_RTC_DRV_RX6110=m ++ ++# ++# Platform RTC drivers ++# ++# CONFIG_RTC_DRV_DS1286 is not set ++# CONFIG_RTC_DRV_DS1511 is not set ++# CONFIG_RTC_DRV_DS1553 is not set ++# CONFIG_RTC_DRV_DS1685_FAMILY is not set ++# CONFIG_RTC_DRV_DS1742 is not set ++# CONFIG_RTC_DRV_DS2404 is not set ++CONFIG_RTC_DRV_EFI=y ++# CONFIG_RTC_DRV_STK17TA8 is not set ++# CONFIG_RTC_DRV_M48T86 is not set ++# CONFIG_RTC_DRV_M48T35 is not set ++# CONFIG_RTC_DRV_M48T59 is not set ++# CONFIG_RTC_DRV_MSM6242 is not set ++# CONFIG_RTC_DRV_BQ4802 is not set ++# CONFIG_RTC_DRV_RP5C01 is not set ++# CONFIG_RTC_DRV_V3020 is not set ++# CONFIG_RTC_DRV_ZYNQMP is not set ++ ++# ++# on-CPU RTC drivers ++# ++# CONFIG_RTC_DRV_PL030 is not set ++CONFIG_RTC_DRV_PL031=y ++CONFIG_RTC_DRV_CADENCE=m ++# CONFIG_RTC_DRV_FTRTC010 is not set ++# CONFIG_RTC_DRV_R7301 is not set ++ ++# ++# HID Sensor RTC drivers ++# ++CONFIG_RTC_DRV_HID_SENSOR_TIME=m ++# CONFIG_RTC_DRV_GOLDFISH is not set ++CONFIG_DMADEVICES=y ++# CONFIG_DMADEVICES_DEBUG is not set ++ ++# ++# DMA Devices ++# ++CONFIG_ASYNC_TX_ENABLE_CHANNEL_SWITCH=y ++CONFIG_DMA_ENGINE=y ++CONFIG_DMA_VIRTUAL_CHANNELS=m ++CONFIG_DMA_OF=y ++CONFIG_ALTERA_MSGDMA=m ++# CONFIG_AMBA_PL08X is not set ++CONFIG_BCM_SBA_RAID=m ++CONFIG_DW_AXI_DMAC=m ++# CONFIG_FSL_EDMA is not set ++CONFIG_FSL_QDMA=m ++CONFIG_HISI_DMA=m ++# CONFIG_INTEL_IDMA64 is not set ++CONFIG_MV_XOR_V2=y ++CONFIG_PL330_DMA=y ++CONFIG_PLX_DMA=m ++# CONFIG_XILINX_DMA is not set ++# CONFIG_XILINX_ZYNQMP_DMA is not set ++# CONFIG_XILINX_ZYNQMP_DPDMA is not set ++CONFIG_QCOM_HIDMA_MGMT=y ++CONFIG_QCOM_HIDMA=y ++# CONFIG_DW_DMAC is not set ++# CONFIG_DW_DMAC_PCI is not set ++CONFIG_DW_EDMA=m ++CONFIG_DW_EDMA_PCIE=m ++CONFIG_SF_PDMA=m ++ ++# ++# DMA Clients ++# ++# CONFIG_ASYNC_TX_DMA is not set ++# CONFIG_DMATEST is not set ++CONFIG_DMA_ENGINE_RAID=y ++ ++# ++# DMABUF options ++# ++CONFIG_SYNC_FILE=y ++# CONFIG_SW_SYNC is not set ++# CONFIG_UDMABUF is not set ++# CONFIG_DMABUF_MOVE_NOTIFY is not set ++# CONFIG_DMABUF_DEBUG is not set ++# CONFIG_DMABUF_SELFTESTS is not set ++# CONFIG_DMABUF_HEAPS is not set ++# CONFIG_DMABUF_SYSFS_STATS is not set ++# end of DMABUF options ++ ++# CONFIG_AUXDISPLAY is not set ++CONFIG_UIO=m ++# CONFIG_UIO_CIF is not set ++# CONFIG_UIO_PDRV_GENIRQ is not set ++# CONFIG_UIO_DMEM_GENIRQ is not set ++# CONFIG_UIO_AEC is not set ++# CONFIG_UIO_SERCOS3 is not set ++# CONFIG_UIO_PCI_GENERIC is not set ++# CONFIG_UIO_NETX is not set ++# CONFIG_UIO_PRUSS is not set ++# CONFIG_UIO_MF624 is not set ++# CONFIG_VFIO is not set ++# CONFIG_VIRT_DRIVERS is not set ++CONFIG_VIRTIO=y ++# CONFIG_VIRTIO_MENU is not set ++# CONFIG_VDPA is not set ++# CONFIG_VHOST_MENU is not set ++ ++# ++# Microsoft Hyper-V guest support ++# ++# end of Microsoft Hyper-V guest support ++ ++# CONFIG_GREYBUS is not set ++# CONFIG_COMEDI is not set ++CONFIG_STAGING=y ++# CONFIG_PRISM2_USB is not set ++CONFIG_RTL8192U=m ++CONFIG_RTLLIB=m ++CONFIG_RTLLIB_CRYPTO_CCMP=m ++CONFIG_RTLLIB_CRYPTO_TKIP=m ++CONFIG_RTLLIB_CRYPTO_WEP=m ++CONFIG_RTL8192E=m ++CONFIG_RTL8723BS=m ++CONFIG_R8712U=m ++# CONFIG_R8188EU is not set ++CONFIG_RTS5208=m ++CONFIG_VT6655=m ++CONFIG_VT6656=m ++ ++# ++# IIO staging drivers ++# ++ ++# ++# Accelerometers ++# ++# CONFIG_ADIS16203 is not set ++# CONFIG_ADIS16240 is not set ++# end of Accelerometers ++ ++# ++# Analog to digital converters ++# ++# CONFIG_AD7816 is not set ++# CONFIG_AD7280 is not set ++# end of Analog to digital converters ++ ++# ++# Analog digital bi-direction converters ++# ++# CONFIG_ADT7316 is not set ++# end of Analog digital bi-direction converters ++ ++# ++# Capacitance to digital converters ++# ++# CONFIG_AD7746 is not set ++# end of Capacitance to digital converters ++ ++# ++# Direct Digital Synthesis ++# ++CONFIG_AD9832=m ++CONFIG_AD9834=m ++# end of Direct Digital Synthesis ++ ++# ++# Network Analyzer, Impedance Converters ++# ++# CONFIG_AD5933 is not set ++# end of Network Analyzer, Impedance Converters ++ ++# ++# Active energy metering IC ++# ++# CONFIG_ADE7854 is not set ++# end of Active energy metering IC ++ ++# ++# Resolver to digital converters ++# ++# CONFIG_AD2S1210 is not set ++# end of Resolver to digital converters ++# end of IIO staging drivers ++ ++CONFIG_FB_SM750=m ++CONFIG_STAGING_MEDIA=y ++CONFIG_VIDEO_HANTRO=m ++CONFIG_VIDEO_HANTRO_ROCKCHIP=y ++CONFIG_VIDEO_ROCKCHIP_VDEC=m ++# CONFIG_VIDEO_ZORAN is not set ++# CONFIG_DVB_AV7110 is not set ++ ++# ++# Android ++# ++# end of Android ++ ++# CONFIG_STAGING_BOARD is not set ++# CONFIG_LTE_GDM724X is not set ++# CONFIG_GS_FPGABOOT is not set ++# CONFIG_UNISYSSPAR is not set ++CONFIG_COMMON_CLK_XLNX_CLKWZRD=m ++CONFIG_FB_TFT=m ++CONFIG_FB_TFT_AGM1264K_FL=m ++CONFIG_FB_TFT_BD663474=m ++CONFIG_FB_TFT_HX8340BN=m ++CONFIG_FB_TFT_HX8347D=m ++CONFIG_FB_TFT_HX8353D=m ++CONFIG_FB_TFT_HX8357D=m ++CONFIG_FB_TFT_ILI9163=m ++CONFIG_FB_TFT_ILI9320=m ++CONFIG_FB_TFT_ILI9325=m ++CONFIG_FB_TFT_ILI9340=m ++CONFIG_FB_TFT_ILI9341=m ++CONFIG_FB_TFT_ILI9481=m ++CONFIG_FB_TFT_ILI9486=m ++CONFIG_FB_TFT_PCD8544=m ++CONFIG_FB_TFT_RA8875=m ++CONFIG_FB_TFT_S6D02A1=m ++CONFIG_FB_TFT_S6D1121=m ++CONFIG_FB_TFT_SEPS525=m ++CONFIG_FB_TFT_SH1106=m ++CONFIG_FB_TFT_SSD1289=m ++CONFIG_FB_TFT_SSD1305=m ++CONFIG_FB_TFT_SSD1306=m ++CONFIG_FB_TFT_SSD1331=m ++CONFIG_FB_TFT_SSD1351=m ++CONFIG_FB_TFT_ST7735R=m ++CONFIG_FB_TFT_ST7789V=m ++CONFIG_FB_TFT_TINYLCD=m ++CONFIG_FB_TFT_TLS8204=m ++CONFIG_FB_TFT_UC1611=m ++CONFIG_FB_TFT_UC1701=m ++CONFIG_FB_TFT_UPD161704=m ++CONFIG_FB_TFT_WATTEROTT=m ++# CONFIG_MOST_COMPONENTS is not set ++# CONFIG_KS7010 is not set ++# CONFIG_PI433 is not set ++# CONFIG_XIL_AXIS_FIFO is not set ++CONFIG_FIELDBUS_DEV=m ++CONFIG_HMS_ANYBUSS_BUS=m ++# CONFIG_ARCX_ANYBUS_CONTROLLER is not set ++# CONFIG_HMS_PROFINET is not set ++# CONFIG_QLGE is not set ++CONFIG_WFX=m ++# CONFIG_GOLDFISH is not set ++# CONFIG_CHROME_PLATFORMS is not set ++# CONFIG_MELLANOX_PLATFORM is not set ++CONFIG_HAVE_CLK=y ++CONFIG_HAVE_CLK_PREPARE=y ++CONFIG_COMMON_CLK=y ++ ++# ++# Clock driver for ARM Reference designs ++# ++# CONFIG_ICST is not set ++# CONFIG_CLK_SP810 is not set ++# CONFIG_CLK_VEXPRESS_OSC is not set ++# end of Clock driver for ARM Reference designs ++ ++# CONFIG_LMK04832 is not set ++# CONFIG_COMMON_CLK_MAX77686 is not set ++# CONFIG_COMMON_CLK_MAX9485 is not set ++CONFIG_COMMON_CLK_RK808=y ++CONFIG_COMMON_CLK_SCPI=y ++# CONFIG_COMMON_CLK_SI5341 is not set ++# CONFIG_COMMON_CLK_SI5351 is not set ++# CONFIG_COMMON_CLK_SI514 is not set ++CONFIG_COMMON_CLK_SI544=m ++# CONFIG_COMMON_CLK_SI570 is not set ++# CONFIG_COMMON_CLK_CDCE706 is not set ++# CONFIG_COMMON_CLK_CDCE925 is not set ++CONFIG_COMMON_CLK_CS2000_CP=y ++# CONFIG_COMMON_CLK_AXI_CLKGEN is not set ++CONFIG_COMMON_CLK_XGENE=y ++CONFIG_COMMON_CLK_PWM=y ++# CONFIG_COMMON_CLK_VC5 is not set ++CONFIG_COMMON_CLK_BD718XX=m ++# CONFIG_COMMON_CLK_FIXED_MMIO is not set ++CONFIG_COMMON_CLK_ROCKCHIP=y ++CONFIG_CLK_PX30=y ++CONFIG_CLK_RK3308=y ++CONFIG_CLK_RK3328=y ++CONFIG_CLK_RK3368=y ++CONFIG_CLK_RK3399=y ++CONFIG_CLK_RK3568=y ++# CONFIG_XILINX_VCU is not set ++# CONFIG_HWSPINLOCK is not set ++ ++# ++# Clock Source drivers ++# ++CONFIG_TIMER_OF=y ++CONFIG_TIMER_PROBE=y ++CONFIG_CLKSRC_MMIO=y ++CONFIG_DW_APB_TIMER=y ++CONFIG_DW_APB_TIMER_OF=y ++CONFIG_ROCKCHIP_TIMER=y ++CONFIG_ARM_ARCH_TIMER=y ++CONFIG_ARM_ARCH_TIMER_EVTSTREAM=y ++CONFIG_ARM_ARCH_TIMER_OOL_WORKAROUND=y ++CONFIG_FSL_ERRATUM_A008585=y ++CONFIG_HISILICON_ERRATUM_161010101=y ++CONFIG_ARM64_ERRATUM_858921=y ++# CONFIG_MICROCHIP_PIT64B is not set ++# end of Clock Source drivers ++ ++CONFIG_MAILBOX=y ++CONFIG_ARM_MHU=y ++# CONFIG_ARM_MHU_V2 is not set ++CONFIG_PLATFORM_MHU=y ++# CONFIG_PL320_MBOX is not set ++CONFIG_ROCKCHIP_MBOX=y ++# CONFIG_ALTERA_MBOX is not set ++# CONFIG_MAILBOX_TEST is not set ++CONFIG_IOMMU_IOVA=y ++CONFIG_IOMMU_API=y ++CONFIG_IOMMU_SUPPORT=y ++ ++# ++# Generic IOMMU Pagetable Support ++# ++CONFIG_IOMMU_IO_PGTABLE=y ++CONFIG_IOMMU_IO_PGTABLE_LPAE=y ++# CONFIG_IOMMU_IO_PGTABLE_LPAE_SELFTEST is not set ++# CONFIG_IOMMU_IO_PGTABLE_ARMV7S is not set ++# end of Generic IOMMU Pagetable Support ++ ++# CONFIG_IOMMU_DEBUGFS is not set ++CONFIG_IOMMU_DEFAULT_DMA_STRICT=y ++# CONFIG_IOMMU_DEFAULT_DMA_LAZY is not set ++# CONFIG_IOMMU_DEFAULT_PASSTHROUGH is not set ++CONFIG_OF_IOMMU=y ++CONFIG_IOMMU_DMA=y ++CONFIG_ROCKCHIP_IOMMU=y ++CONFIG_ARM_SMMU=y ++# CONFIG_ARM_SMMU_LEGACY_DT_BINDINGS is not set ++CONFIG_ARM_SMMU_DISABLE_BYPASS_BY_DEFAULT=y ++CONFIG_ARM_SMMU_V3=y ++# CONFIG_ARM_SMMU_V3_SVA is not set ++# CONFIG_VIRTIO_IOMMU is not set ++ ++# ++# Remoteproc drivers ++# ++# CONFIG_REMOTEPROC is not set ++# end of Remoteproc drivers ++ ++# ++# Rpmsg drivers ++# ++# CONFIG_RPMSG_QCOM_GLINK_RPM is not set ++# CONFIG_RPMSG_VIRTIO is not set ++# end of Rpmsg drivers ++ ++# CONFIG_SOUNDWIRE is not set ++ ++# ++# SOC (System On Chip) specific Drivers ++# ++ ++# ++# Amlogic SoC drivers ++# ++# end of Amlogic SoC drivers ++ ++# ++# Broadcom SoC drivers ++# ++CONFIG_SOC_BRCMSTB=y ++# end of Broadcom SoC drivers ++ ++# ++# NXP/Freescale QorIQ SoC drivers ++# ++# CONFIG_QUICC_ENGINE is not set ++# CONFIG_FSL_RCPM is not set ++# end of NXP/Freescale QorIQ SoC drivers ++ ++# ++# i.MX SoC drivers ++# ++# end of i.MX SoC drivers ++ ++# ++# Enable LiteX SoC Builder specific drivers ++# ++# CONFIG_LITEX_SOC_CONTROLLER is not set ++# end of Enable LiteX SoC Builder specific drivers ++ ++# ++# Qualcomm SoC drivers ++# ++# end of Qualcomm SoC drivers ++ ++CONFIG_ROCKCHIP_GRF=y ++CONFIG_ROCKCHIP_IODOMAIN=y ++CONFIG_ROCKCHIP_PM_DOMAINS=y ++# CONFIG_SOC_TI is not set ++ ++# ++# Xilinx SoC drivers ++# ++# end of Xilinx SoC drivers ++# end of SOC (System On Chip) specific Drivers ++ ++CONFIG_PM_DEVFREQ=y ++ ++# ++# DEVFREQ Governors ++# ++CONFIG_DEVFREQ_GOV_SIMPLE_ONDEMAND=y ++CONFIG_DEVFREQ_GOV_PERFORMANCE=m ++CONFIG_DEVFREQ_GOV_POWERSAVE=m ++CONFIG_DEVFREQ_GOV_USERSPACE=m ++CONFIG_DEVFREQ_GOV_PASSIVE=m ++ ++# ++# DEVFREQ Drivers ++# ++CONFIG_ARM_RK3399_DMC_DEVFREQ=y ++CONFIG_PM_DEVFREQ_EVENT=y ++CONFIG_DEVFREQ_EVENT_ROCKCHIP_DFI=y ++CONFIG_EXTCON=y ++ ++# ++# Extcon Device Drivers ++# ++# CONFIG_EXTCON_ADC_JACK is not set ++# CONFIG_EXTCON_FSA9480 is not set ++# CONFIG_EXTCON_GPIO is not set ++# CONFIG_EXTCON_MAX3355 is not set ++CONFIG_EXTCON_PTN5150=m ++# CONFIG_EXTCON_RT8973A is not set ++# CONFIG_EXTCON_SM5502 is not set ++CONFIG_EXTCON_USB_GPIO=y ++# CONFIG_EXTCON_USBC_TUSB320 is not set ++# CONFIG_MEMORY is not set ++CONFIG_IIO=y ++CONFIG_IIO_BUFFER=y ++CONFIG_IIO_BUFFER_CB=m ++# CONFIG_IIO_BUFFER_DMA is not set ++# CONFIG_IIO_BUFFER_DMAENGINE is not set ++# CONFIG_IIO_BUFFER_HW_CONSUMER is not set ++CONFIG_IIO_KFIFO_BUF=y ++CONFIG_IIO_TRIGGERED_BUFFER=y ++CONFIG_IIO_CONFIGFS=m ++CONFIG_IIO_TRIGGER=y ++CONFIG_IIO_CONSUMERS_PER_TRIGGER=2 ++CONFIG_IIO_SW_DEVICE=m ++CONFIG_IIO_SW_TRIGGER=m ++# CONFIG_IIO_TRIGGERED_EVENT is not set ++ ++# ++# Accelerometers ++# ++CONFIG_ADIS16201=m ++CONFIG_ADIS16209=m ++CONFIG_ADXL345=m ++CONFIG_ADXL345_I2C=m ++CONFIG_ADXL345_SPI=m ++CONFIG_ADXL372=m ++CONFIG_ADXL372_SPI=m ++CONFIG_ADXL372_I2C=m ++CONFIG_BMA180=m ++CONFIG_BMA220=m ++CONFIG_BMA400=m ++CONFIG_BMA400_I2C=m ++CONFIG_BMA400_SPI=m ++CONFIG_BMC150_ACCEL=m ++CONFIG_BMC150_ACCEL_I2C=m ++CONFIG_BMC150_ACCEL_SPI=m ++# CONFIG_BMI088_ACCEL is not set ++CONFIG_DA280=m ++CONFIG_DA311=m ++CONFIG_DMARD06=m ++CONFIG_DMARD09=m ++CONFIG_DMARD10=m ++# CONFIG_FXLS8962AF_I2C is not set ++# CONFIG_FXLS8962AF_SPI is not set ++CONFIG_HID_SENSOR_ACCEL_3D=m ++CONFIG_IIO_ST_ACCEL_3AXIS=m ++CONFIG_IIO_ST_ACCEL_I2C_3AXIS=m ++CONFIG_IIO_ST_ACCEL_SPI_3AXIS=m ++CONFIG_KXSD9=m ++CONFIG_KXSD9_SPI=m ++CONFIG_KXSD9_I2C=m ++CONFIG_KXCJK1013=m ++CONFIG_MC3230=m ++CONFIG_MMA7455=m ++CONFIG_MMA7455_I2C=m ++CONFIG_MMA7455_SPI=m ++CONFIG_MMA7660=m ++CONFIG_MMA8452=m ++CONFIG_MMA9551_CORE=m ++CONFIG_MMA9551=m ++CONFIG_MMA9553=m ++CONFIG_MXC4005=m ++CONFIG_MXC6255=m ++CONFIG_SCA3000=m ++# CONFIG_SCA3300 is not set ++CONFIG_STK8312=m ++CONFIG_STK8BA50=m ++# end of Accelerometers ++ ++# ++# Analog to digital converters ++# ++CONFIG_AD_SIGMA_DELTA=m ++CONFIG_AD7091R5=m ++CONFIG_AD7124=m ++# CONFIG_AD7192 is not set ++CONFIG_AD7266=m ++CONFIG_AD7291=m ++CONFIG_AD7292=m ++CONFIG_AD7298=m ++CONFIG_AD7476=m ++CONFIG_AD7606=m ++CONFIG_AD7606_IFACE_PARALLEL=m ++CONFIG_AD7606_IFACE_SPI=m ++CONFIG_AD7766=m ++CONFIG_AD7768_1=m ++# CONFIG_AD7780 is not set ++CONFIG_AD7791=m ++CONFIG_AD7793=m ++CONFIG_AD7887=m ++CONFIG_AD7923=m ++CONFIG_AD7949=m ++CONFIG_AD799X=m ++# CONFIG_ADI_AXI_ADC is not set ++# CONFIG_CC10001_ADC is not set ++# CONFIG_ENVELOPE_DETECTOR is not set ++# CONFIG_HI8435 is not set ++# CONFIG_HX711 is not set ++# CONFIG_INA2XX_ADC is not set ++# CONFIG_LTC2471 is not set ++# CONFIG_LTC2485 is not set ++CONFIG_LTC2496=m ++# CONFIG_LTC2497 is not set ++# CONFIG_MAX1027 is not set ++# CONFIG_MAX11100 is not set ++# CONFIG_MAX1118 is not set ++# CONFIG_MAX1241 is not set ++# CONFIG_MAX1363 is not set ++# CONFIG_MAX9611 is not set ++# CONFIG_MCP320X is not set ++# CONFIG_MCP3422 is not set ++# CONFIG_MCP3911 is not set ++# CONFIG_NAU7802 is not set ++# CONFIG_QCOM_SPMI_IADC is not set ++# CONFIG_QCOM_SPMI_VADC is not set ++# CONFIG_QCOM_SPMI_ADC5 is not set ++CONFIG_RN5T618_ADC=m ++CONFIG_ROCKCHIP_SARADC=y ++# CONFIG_SD_ADC_MODULATOR is not set ++CONFIG_TI_ADC081C=m ++CONFIG_TI_ADC0832=m ++CONFIG_TI_ADC084S021=m ++CONFIG_TI_ADC12138=m ++CONFIG_TI_ADC108S102=m ++CONFIG_TI_ADC128S052=m ++CONFIG_TI_ADC161S626=m ++CONFIG_TI_ADS1015=m ++CONFIG_TI_ADS7950=m ++CONFIG_TI_ADS8344=m ++CONFIG_TI_ADS8688=m ++CONFIG_TI_ADS124S08=m ++# CONFIG_TI_ADS131E08 is not set ++# CONFIG_TI_TLC4541 is not set ++# CONFIG_TI_TSC2046 is not set ++# CONFIG_VF610_ADC is not set ++CONFIG_XILINX_XADC=m ++# end of Analog to digital converters ++ ++# ++# Analog Front Ends ++# ++# CONFIG_IIO_RESCALE is not set ++# end of Analog Front Ends ++ ++# ++# Amplifiers ++# ++# CONFIG_AD8366 is not set ++CONFIG_HMC425=m ++# end of Amplifiers ++ ++# ++# Capacitance to digital converters ++# ++# CONFIG_AD7150 is not set ++# end of Capacitance to digital converters ++ ++# ++# Chemical Sensors ++# ++# CONFIG_ATLAS_PH_SENSOR is not set ++# CONFIG_ATLAS_EZO_SENSOR is not set ++CONFIG_BME680=m ++CONFIG_BME680_I2C=m ++CONFIG_BME680_SPI=m ++# CONFIG_CCS811 is not set ++# CONFIG_IAQCORE is not set ++CONFIG_PMS7003=m ++# CONFIG_SCD30_CORE is not set ++CONFIG_SENSIRION_SGP30=m ++# CONFIG_SENSIRION_SGP40 is not set ++# CONFIG_SPS30_I2C is not set ++# CONFIG_SPS30_SERIAL is not set ++# CONFIG_VZ89X is not set ++# end of Chemical Sensors ++ ++# ++# Hid Sensor IIO Common ++# ++CONFIG_HID_SENSOR_IIO_COMMON=m ++CONFIG_HID_SENSOR_IIO_TRIGGER=m ++# end of Hid Sensor IIO Common ++ ++CONFIG_IIO_MS_SENSORS_I2C=m ++ ++# ++# IIO SCMI Sensors ++# ++# end of IIO SCMI Sensors ++ ++# ++# SSP Sensor Common ++# ++# CONFIG_IIO_SSP_SENSORHUB is not set ++# end of SSP Sensor Common ++ ++CONFIG_IIO_ST_SENSORS_I2C=m ++CONFIG_IIO_ST_SENSORS_SPI=m ++CONFIG_IIO_ST_SENSORS_CORE=m ++ ++# ++# Digital to analog converters ++# ++# CONFIG_AD5064 is not set ++# CONFIG_AD5360 is not set ++# CONFIG_AD5380 is not set ++# CONFIG_AD5421 is not set ++# CONFIG_AD5446 is not set ++# CONFIG_AD5449 is not set ++# CONFIG_AD5592R is not set ++# CONFIG_AD5593R is not set ++# CONFIG_AD5504 is not set ++# CONFIG_AD5624R_SPI is not set ++CONFIG_AD5686=m ++CONFIG_AD5686_SPI=m ++CONFIG_AD5696_I2C=m ++# CONFIG_AD5755 is not set ++CONFIG_AD5758=m ++# CONFIG_AD5761 is not set ++# CONFIG_AD5764 is not set ++# CONFIG_AD5766 is not set ++CONFIG_AD5770R=m ++# CONFIG_AD5791 is not set ++# CONFIG_AD7303 is not set ++# CONFIG_AD8801 is not set ++# CONFIG_DPOT_DAC is not set ++# CONFIG_DS4424 is not set ++CONFIG_LTC1660=m ++# CONFIG_LTC2632 is not set ++# CONFIG_M62332 is not set ++# CONFIG_MAX517 is not set ++# CONFIG_MAX5821 is not set ++# CONFIG_MCP4725 is not set ++# CONFIG_MCP4922 is not set ++# CONFIG_TI_DAC082S085 is not set ++CONFIG_TI_DAC5571=m ++CONFIG_TI_DAC7311=m ++CONFIG_TI_DAC7612=m ++# CONFIG_VF610_DAC is not set ++# end of Digital to analog converters ++ ++# ++# IIO dummy driver ++# ++# CONFIG_IIO_SIMPLE_DUMMY is not set ++# end of IIO dummy driver ++ ++# ++# Frequency Synthesizers DDS/PLL ++# ++ ++# ++# Clock Generator/Distribution ++# ++# CONFIG_AD9523 is not set ++# end of Clock Generator/Distribution ++ ++# ++# Phase-Locked Loop (PLL) frequency synthesizers ++# ++# CONFIG_ADF4350 is not set ++CONFIG_ADF4371=m ++# end of Phase-Locked Loop (PLL) frequency synthesizers ++# end of Frequency Synthesizers DDS/PLL ++ ++# ++# Digital gyroscope sensors ++# ++CONFIG_ADIS16080=m ++CONFIG_ADIS16130=m ++CONFIG_ADIS16136=m ++CONFIG_ADIS16260=m ++# CONFIG_ADXRS290 is not set ++CONFIG_ADXRS450=m ++CONFIG_BMG160=m ++CONFIG_BMG160_I2C=m ++CONFIG_BMG160_SPI=m ++CONFIG_FXAS21002C=m ++CONFIG_FXAS21002C_I2C=m ++CONFIG_FXAS21002C_SPI=m ++CONFIG_HID_SENSOR_GYRO_3D=m ++CONFIG_MPU3050=m ++CONFIG_MPU3050_I2C=m ++CONFIG_IIO_ST_GYRO_3AXIS=m ++CONFIG_IIO_ST_GYRO_I2C_3AXIS=m ++CONFIG_IIO_ST_GYRO_SPI_3AXIS=m ++CONFIG_ITG3200=m ++# end of Digital gyroscope sensors ++ ++# ++# Health Sensors ++# ++ ++# ++# Heart Rate Monitors ++# ++# CONFIG_AFE4403 is not set ++# CONFIG_AFE4404 is not set ++# CONFIG_MAX30100 is not set ++# CONFIG_MAX30102 is not set ++# end of Heart Rate Monitors ++# end of Health Sensors ++ ++# ++# Humidity sensors ++# ++CONFIG_AM2315=m ++CONFIG_DHT11=m ++CONFIG_HDC100X=m ++# CONFIG_HDC2010 is not set ++CONFIG_HID_SENSOR_HUMIDITY=m ++CONFIG_HTS221=m ++CONFIG_HTS221_I2C=m ++CONFIG_HTS221_SPI=m ++CONFIG_HTU21=m ++CONFIG_SI7005=m ++CONFIG_SI7020=m ++# end of Humidity sensors ++ ++# ++# Inertial measurement units ++# ++# CONFIG_ADIS16400 is not set ++CONFIG_ADIS16460=m ++# CONFIG_ADIS16475 is not set ++# CONFIG_ADIS16480 is not set ++# CONFIG_BMI160_I2C is not set ++# CONFIG_BMI160_SPI is not set ++CONFIG_FXOS8700=m ++CONFIG_FXOS8700_I2C=m ++CONFIG_FXOS8700_SPI=m ++# CONFIG_KMX61 is not set ++# CONFIG_INV_ICM42600_I2C is not set ++# CONFIG_INV_ICM42600_SPI is not set ++# CONFIG_INV_MPU6050_I2C is not set ++# CONFIG_INV_MPU6050_SPI is not set ++# CONFIG_IIO_ST_LSM6DSX is not set ++# CONFIG_IIO_ST_LSM9DS0 is not set ++# end of Inertial measurement units ++ ++CONFIG_IIO_ADIS_LIB=m ++CONFIG_IIO_ADIS_LIB_BUFFER=y ++ ++# ++# Light sensors ++# ++CONFIG_ADJD_S311=m ++CONFIG_ADUX1020=m ++CONFIG_AL3010=m ++CONFIG_AL3320A=m ++CONFIG_APDS9300=m ++CONFIG_APDS9960=m ++# CONFIG_AS73211 is not set ++CONFIG_BH1750=m ++CONFIG_BH1780=m ++CONFIG_CM32181=m ++CONFIG_CM3232=m ++CONFIG_CM3323=m ++CONFIG_CM3605=m ++CONFIG_CM36651=m ++CONFIG_GP2AP002=m ++CONFIG_GP2AP020A00F=m ++CONFIG_IQS621_ALS=m ++CONFIG_SENSORS_ISL29018=m ++CONFIG_SENSORS_ISL29028=m ++CONFIG_ISL29125=m ++CONFIG_HID_SENSOR_ALS=m ++CONFIG_HID_SENSOR_PROX=m ++CONFIG_JSA1212=m ++CONFIG_RPR0521=m ++CONFIG_SENSORS_LM3533=m ++CONFIG_LTR501=m ++CONFIG_LV0104CS=m ++CONFIG_MAX44000=m ++CONFIG_MAX44009=m ++CONFIG_NOA1305=m ++CONFIG_OPT3001=m ++CONFIG_PA12203001=m ++CONFIG_SI1133=m ++CONFIG_SI1145=m ++CONFIG_STK3310=m ++CONFIG_ST_UVIS25=m ++CONFIG_ST_UVIS25_I2C=m ++CONFIG_ST_UVIS25_SPI=m ++CONFIG_TCS3414=m ++CONFIG_TCS3472=m ++CONFIG_SENSORS_TSL2563=m ++CONFIG_TSL2583=m ++# CONFIG_TSL2591 is not set ++CONFIG_TSL2772=m ++CONFIG_TSL4531=m ++CONFIG_US5182D=m ++CONFIG_VCNL4000=m ++CONFIG_VCNL4035=m ++CONFIG_VEML6030=m ++CONFIG_VEML6070=m ++CONFIG_VL6180=m ++CONFIG_ZOPT2201=m ++# end of Light sensors ++ ++# ++# Magnetometer sensors ++# ++CONFIG_AK8974=m ++CONFIG_AK8975=m ++CONFIG_AK09911=m ++CONFIG_BMC150_MAGN=m ++CONFIG_BMC150_MAGN_I2C=m ++CONFIG_BMC150_MAGN_SPI=m ++CONFIG_MAG3110=m ++CONFIG_HID_SENSOR_MAGNETOMETER_3D=m ++CONFIG_MMC35240=m ++CONFIG_IIO_ST_MAGN_3AXIS=m ++CONFIG_IIO_ST_MAGN_I2C_3AXIS=m ++CONFIG_IIO_ST_MAGN_SPI_3AXIS=m ++CONFIG_SENSORS_HMC5843=m ++CONFIG_SENSORS_HMC5843_I2C=m ++CONFIG_SENSORS_HMC5843_SPI=m ++CONFIG_SENSORS_RM3100=m ++CONFIG_SENSORS_RM3100_I2C=m ++CONFIG_SENSORS_RM3100_SPI=m ++# CONFIG_YAMAHA_YAS530 is not set ++# end of Magnetometer sensors ++ ++# ++# Multiplexers ++# ++# CONFIG_IIO_MUX is not set ++# end of Multiplexers ++ ++# ++# Inclinometer sensors ++# ++CONFIG_HID_SENSOR_INCLINOMETER_3D=m ++CONFIG_HID_SENSOR_DEVICE_ROTATION=m ++# end of Inclinometer sensors ++ ++# ++# Triggers - standalone ++# ++CONFIG_IIO_HRTIMER_TRIGGER=m ++CONFIG_IIO_INTERRUPT_TRIGGER=m ++CONFIG_IIO_TIGHTLOOP_TRIGGER=m ++CONFIG_IIO_SYSFS_TRIGGER=m ++# end of Triggers - standalone ++ ++# ++# Linear and angular position sensors ++# ++CONFIG_IQS624_POS=m ++# CONFIG_HID_SENSOR_CUSTOM_INTEL_HINGE is not set ++# end of Linear and angular position sensors ++ ++# ++# Digital potentiometers ++# ++# CONFIG_AD5110 is not set ++CONFIG_AD5272=m ++# CONFIG_DS1803 is not set ++CONFIG_MAX5432=m ++# CONFIG_MAX5481 is not set ++# CONFIG_MAX5487 is not set ++CONFIG_MCP4018=m ++# CONFIG_MCP4131 is not set ++# CONFIG_MCP4531 is not set ++CONFIG_MCP41010=m ++# CONFIG_TPL0102 is not set ++# end of Digital potentiometers ++ ++# ++# Digital potentiostats ++# ++# CONFIG_LMP91000 is not set ++# end of Digital potentiostats ++ ++# ++# Pressure sensors ++# ++# CONFIG_ABP060MG is not set ++CONFIG_BMP280=m ++CONFIG_BMP280_I2C=m ++CONFIG_BMP280_SPI=m ++CONFIG_DLHL60D=m ++CONFIG_DPS310=m ++CONFIG_HID_SENSOR_PRESS=m ++# CONFIG_HP03 is not set ++CONFIG_ICP10100=m ++# CONFIG_MPL115_I2C is not set ++# CONFIG_MPL115_SPI is not set ++# CONFIG_MPL3115 is not set ++# CONFIG_MS5611 is not set ++# CONFIG_MS5637 is not set ++# CONFIG_IIO_ST_PRESS is not set ++# CONFIG_T5403 is not set ++# CONFIG_HP206C is not set ++# CONFIG_ZPA2326 is not set ++# end of Pressure sensors ++ ++# ++# Lightning sensors ++# ++# CONFIG_AS3935 is not set ++# end of Lightning sensors ++ ++# ++# Proximity and distance sensors ++# ++CONFIG_ISL29501=m ++# CONFIG_LIDAR_LITE_V2 is not set ++CONFIG_MB1232=m ++CONFIG_PING=m ++# CONFIG_RFD77402 is not set ++# CONFIG_SRF04 is not set ++# CONFIG_SX9310 is not set ++# CONFIG_SX9500 is not set ++# CONFIG_SRF08 is not set ++# CONFIG_VCNL3020 is not set ++CONFIG_VL53L0X_I2C=m ++# end of Proximity and distance sensors ++ ++# ++# Resolver to digital converters ++# ++# CONFIG_AD2S90 is not set ++# CONFIG_AD2S1200 is not set ++# end of Resolver to digital converters ++ ++# ++# Temperature sensors ++# ++CONFIG_IQS620AT_TEMP=m ++CONFIG_LTC2983=m ++CONFIG_MAXIM_THERMOCOUPLE=m ++CONFIG_HID_SENSOR_TEMP=m ++CONFIG_MLX90614=m ++CONFIG_MLX90632=m ++CONFIG_TMP006=m ++CONFIG_TMP007=m ++# CONFIG_TMP117 is not set ++CONFIG_TSYS01=m ++CONFIG_TSYS02D=m ++CONFIG_MAX31856=m ++# end of Temperature sensors ++ ++# CONFIG_NTB is not set ++# CONFIG_VME_BUS is not set ++CONFIG_PWM=y ++CONFIG_PWM_SYSFS=y ++# CONFIG_PWM_DEBUG is not set ++# CONFIG_PWM_ATMEL_TCB is not set ++# CONFIG_PWM_DWC is not set ++# CONFIG_PWM_FSL_FTM is not set ++# CONFIG_PWM_IQS620A is not set ++# CONFIG_PWM_PCA9685 is not set ++CONFIG_PWM_ROCKCHIP=y ++ ++# ++# IRQ chip support ++# ++CONFIG_IRQCHIP=y ++CONFIG_ARM_GIC=y ++CONFIG_ARM_GIC_MAX_NR=1 ++CONFIG_ARM_GIC_V2M=y ++CONFIG_ARM_GIC_V3=y ++CONFIG_ARM_GIC_V3_ITS=y ++CONFIG_ARM_GIC_V3_ITS_PCI=y ++# CONFIG_AL_FIC is not set ++CONFIG_PARTITION_PERCPU=y ++# end of IRQ chip support ++ ++# CONFIG_IPACK_BUS is not set ++CONFIG_ARCH_HAS_RESET_CONTROLLER=y ++CONFIG_RESET_CONTROLLER=y ++# CONFIG_RESET_TI_SYSCON is not set ++ ++# ++# PHY Subsystem ++# ++CONFIG_GENERIC_PHY=y ++CONFIG_GENERIC_PHY_MIPI_DPHY=y ++CONFIG_PHY_XGENE=y ++# CONFIG_PHY_CAN_TRANSCEIVER is not set ++# CONFIG_BCM_KONA_USB2_PHY is not set ++CONFIG_PHY_CADENCE_TORRENT=m ++CONFIG_PHY_CADENCE_DPHY=m ++CONFIG_PHY_CADENCE_SIERRA=m ++# CONFIG_PHY_CADENCE_SALVO is not set ++CONFIG_PHY_FSL_IMX8MQ_USB=m ++CONFIG_PHY_MIXEL_MIPI_DPHY=m ++# CONFIG_PHY_PXA_28NM_HSIC is not set ++# CONFIG_PHY_PXA_28NM_USB2 is not set ++# CONFIG_PHY_CPCAP_USB is not set ++CONFIG_PHY_MAPPHONE_MDM6600=m ++# CONFIG_PHY_OCELOT_SERDES is not set ++# CONFIG_PHY_QCOM_USB_HS is not set ++# CONFIG_PHY_QCOM_USB_HSIC is not set ++CONFIG_PHY_ROCKCHIP_DP=y ++CONFIG_PHY_ROCKCHIP_DPHY_RX0=m ++CONFIG_PHY_ROCKCHIP_EMMC=y ++CONFIG_PHY_ROCKCHIP_INNO_HDMI=y ++CONFIG_PHY_ROCKCHIP_INNO_USB2=y ++# CONFIG_PHY_ROCKCHIP_INNO_CSIDPHY is not set ++CONFIG_PHY_ROCKCHIP_INNO_DSIDPHY=m ++CONFIG_PHY_ROCKCHIP_PCIE=y ++CONFIG_PHY_ROCKCHIP_TYPEC=y ++CONFIG_PHY_ROCKCHIP_USB=y ++CONFIG_PHY_SAMSUNG_USB2=y ++# CONFIG_PHY_TUSB1210 is not set ++# end of PHY Subsystem ++ ++# CONFIG_POWERCAP is not set ++# CONFIG_MCB is not set ++ ++# ++# Performance monitor support ++# ++CONFIG_ARM_CCI_PMU=m ++# CONFIG_ARM_CCI400_PMU is not set ++# CONFIG_ARM_CCI5xx_PMU is not set ++# CONFIG_ARM_CCN is not set ++# CONFIG_ARM_CMN is not set ++CONFIG_ARM_PMU=y ++# CONFIG_ARM_DSU_PMU is not set ++# CONFIG_ARM_SPE_PMU is not set ++# end of Performance monitor support ++ ++CONFIG_RAS=y ++# CONFIG_USB4 is not set ++ ++# ++# Android ++# ++# CONFIG_ANDROID is not set ++# end of Android ++ ++# CONFIG_LIBNVDIMM is not set ++CONFIG_DAX=y ++CONFIG_DEV_DAX=m ++CONFIG_NVMEM=y ++CONFIG_NVMEM_SYSFS=y ++CONFIG_NVMEM_SPMI_SDAM=m ++CONFIG_ROCKCHIP_EFUSE=y ++CONFIG_ROCKCHIP_OTP=m ++# CONFIG_NVMEM_RMEM is not set ++ ++# ++# HW tracing support ++# ++CONFIG_STM=m ++# CONFIG_STM_PROTO_BASIC is not set ++# CONFIG_STM_PROTO_SYS_T is not set ++# CONFIG_STM_DUMMY is not set ++# CONFIG_STM_SOURCE_CONSOLE is not set ++# CONFIG_STM_SOURCE_HEARTBEAT is not set ++# CONFIG_STM_SOURCE_FTRACE is not set ++# CONFIG_INTEL_TH is not set ++# end of HW tracing support ++ ++# CONFIG_FPGA is not set ++# CONFIG_FSI is not set ++# CONFIG_TEE is not set ++CONFIG_MULTIPLEXER=m ++ ++# ++# Multiplexer drivers ++# ++CONFIG_MUX_ADG792A=m ++CONFIG_MUX_ADGS1408=m ++CONFIG_MUX_GPIO=m ++CONFIG_MUX_MMIO=m ++# end of Multiplexer drivers ++ ++CONFIG_PM_OPP=y ++# CONFIG_SIOX is not set ++# CONFIG_SLIMBUS is not set ++# CONFIG_INTERCONNECT is not set ++CONFIG_COUNTER=m ++# CONFIG_INTERRUPT_CNT is not set ++CONFIG_FTM_QUADDEC=m ++# CONFIG_MICROCHIP_TCB_CAPTURE is not set ++# CONFIG_INTEL_QEP is not set ++CONFIG_MOST=m ++# CONFIG_MOST_USB_HDM is not set ++# CONFIG_MOST_CDEV is not set ++# CONFIG_MOST_SND is not set ++# end of Device Drivers ++ ++# ++# File systems ++# ++CONFIG_DCACHE_WORD_ACCESS=y ++CONFIG_VALIDATE_FS_PARSER=y ++CONFIG_FS_IOMAP=y ++# CONFIG_EXT2_FS is not set ++CONFIG_EXT3_FS=y ++CONFIG_EXT3_FS_POSIX_ACL=y ++CONFIG_EXT3_FS_SECURITY=y ++CONFIG_EXT4_FS=y ++CONFIG_EXT4_USE_FOR_EXT2=y ++CONFIG_EXT4_FS_POSIX_ACL=y ++CONFIG_EXT4_FS_SECURITY=y ++# CONFIG_EXT4_DEBUG is not set ++# CONFIG_EXT4_KUNIT_TESTS is not set ++CONFIG_JBD2=y ++# CONFIG_JBD2_DEBUG is not set ++CONFIG_FS_MBCACHE=y ++# CONFIG_REISERFS_FS is not set ++# CONFIG_JFS_FS is not set ++# CONFIG_XFS_FS is not set ++# CONFIG_GFS2_FS is not set ++# CONFIG_OCFS2_FS is not set ++# CONFIG_BTRFS_FS is not set ++# CONFIG_NILFS2_FS is not set ++# CONFIG_F2FS_FS is not set ++# CONFIG_ZONEFS_FS is not set ++CONFIG_FS_DAX=y ++CONFIG_FS_POSIX_ACL=y ++CONFIG_EXPORTFS=y ++CONFIG_EXPORTFS_BLOCK_OPS=y ++CONFIG_FILE_LOCKING=y ++CONFIG_FS_ENCRYPTION=y ++CONFIG_FS_ENCRYPTION_ALGS=y ++CONFIG_FS_VERITY=y ++# CONFIG_FS_VERITY_DEBUG is not set ++CONFIG_FS_VERITY_BUILTIN_SIGNATURES=y ++CONFIG_FSNOTIFY=y ++CONFIG_DNOTIFY=y ++CONFIG_INOTIFY_USER=y ++CONFIG_FANOTIFY=y ++CONFIG_QUOTA=y ++CONFIG_QUOTA_NETLINK_INTERFACE=y ++CONFIG_PRINT_QUOTA_WARNING=y ++# CONFIG_QUOTA_DEBUG is not set ++CONFIG_QUOTA_TREE=m ++CONFIG_QFMT_V1=m ++CONFIG_QFMT_V2=m ++CONFIG_QUOTACTL=y ++CONFIG_AUTOFS4_FS=m ++CONFIG_AUTOFS_FS=m ++CONFIG_FUSE_FS=m ++CONFIG_CUSE=m ++# CONFIG_VIRTIO_FS is not set ++CONFIG_OVERLAY_FS=y ++# CONFIG_OVERLAY_FS_REDIRECT_DIR is not set ++CONFIG_OVERLAY_FS_REDIRECT_ALWAYS_FOLLOW=y ++# CONFIG_OVERLAY_FS_INDEX is not set ++CONFIG_OVERLAY_FS_XINO_AUTO=y ++# CONFIG_OVERLAY_FS_METACOPY is not set ++ ++# ++# Caches ++# ++CONFIG_NETFS_SUPPORT=m ++CONFIG_NETFS_STATS=y ++CONFIG_FSCACHE=m ++CONFIG_FSCACHE_STATS=y ++# CONFIG_FSCACHE_DEBUG is not set ++CONFIG_CACHEFILES=m ++# CONFIG_CACHEFILES_DEBUG is not set ++# end of Caches ++ ++# ++# CD-ROM/DVD Filesystems ++# ++CONFIG_ISO9660_FS=y ++CONFIG_JOLIET=y ++CONFIG_ZISOFS=y ++CONFIG_UDF_FS=m ++# end of CD-ROM/DVD Filesystems ++ ++# ++# DOS/FAT/EXFAT/NT Filesystems ++# ++CONFIG_FAT_FS=y ++CONFIG_MSDOS_FS=y ++CONFIG_VFAT_FS=y ++CONFIG_FAT_DEFAULT_CODEPAGE=866 ++CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1" ++CONFIG_FAT_DEFAULT_UTF8=y ++# CONFIG_FAT_KUNIT_TEST is not set ++CONFIG_EXFAT_FS=m ++CONFIG_EXFAT_DEFAULT_IOCHARSET="utf8" ++# CONFIG_NTFS_FS is not set ++# CONFIG_NTFS3_FS is not set ++# end of DOS/FAT/EXFAT/NT Filesystems ++ ++# ++# Pseudo filesystems ++# ++CONFIG_PROC_FS=y ++# CONFIG_PROC_KCORE is not set ++CONFIG_PROC_SYSCTL=y ++CONFIG_PROC_PAGE_MONITOR=y ++CONFIG_PROC_CHILDREN=y ++CONFIG_KERNFS=y ++CONFIG_SYSFS=y ++CONFIG_TMPFS=y ++CONFIG_TMPFS_POSIX_ACL=y ++CONFIG_TMPFS_XATTR=y ++# CONFIG_TMPFS_INODE64 is not set ++CONFIG_ARCH_SUPPORTS_HUGETLBFS=y ++CONFIG_HUGETLBFS=y ++CONFIG_HUGETLB_PAGE=y ++CONFIG_MEMFD_CREATE=y ++CONFIG_ARCH_HAS_GIGANTIC_PAGE=y ++CONFIG_CONFIGFS_FS=y ++CONFIG_EFIVAR_FS=m ++# end of Pseudo filesystems ++ ++CONFIG_MISC_FILESYSTEMS=y ++# CONFIG_ORANGEFS_FS is not set ++# CONFIG_ADFS_FS is not set ++# CONFIG_AFFS_FS is not set ++# CONFIG_ECRYPT_FS is not set ++# CONFIG_HFS_FS is not set ++# CONFIG_HFSPLUS_FS is not set ++# CONFIG_BEFS_FS is not set ++# CONFIG_BFS_FS is not set ++# CONFIG_EFS_FS is not set ++# CONFIG_JFFS2_FS is not set ++# CONFIG_CRAMFS is not set ++CONFIG_SQUASHFS=y ++# CONFIG_SQUASHFS_FILE_CACHE is not set ++CONFIG_SQUASHFS_FILE_DIRECT=y ++# CONFIG_SQUASHFS_DECOMP_SINGLE is not set ++# CONFIG_SQUASHFS_DECOMP_MULTI is not set ++CONFIG_SQUASHFS_DECOMP_MULTI_PERCPU=y ++CONFIG_SQUASHFS_XATTR=y ++CONFIG_SQUASHFS_ZLIB=y ++CONFIG_SQUASHFS_LZ4=y ++CONFIG_SQUASHFS_LZO=y ++CONFIG_SQUASHFS_XZ=y ++CONFIG_SQUASHFS_ZSTD=y ++CONFIG_SQUASHFS_4K_DEVBLK_SIZE=y ++CONFIG_SQUASHFS_EMBEDDED=y ++CONFIG_SQUASHFS_FRAGMENT_CACHE_SIZE=3 ++# CONFIG_VXFS_FS is not set ++# CONFIG_MINIX_FS is not set ++# CONFIG_OMFS_FS is not set ++# CONFIG_HPFS_FS is not set ++# CONFIG_QNX4FS_FS is not set ++# CONFIG_QNX6FS_FS is not set ++# CONFIG_ROMFS_FS is not set ++CONFIG_PSTORE=y ++CONFIG_PSTORE_DEFAULT_KMSG_BYTES=10240 ++CONFIG_PSTORE_DEFLATE_COMPRESS=y ++# CONFIG_PSTORE_LZO_COMPRESS is not set ++# CONFIG_PSTORE_LZ4_COMPRESS is not set ++# CONFIG_PSTORE_LZ4HC_COMPRESS is not set ++# CONFIG_PSTORE_842_COMPRESS is not set ++# CONFIG_PSTORE_ZSTD_COMPRESS is not set ++CONFIG_PSTORE_COMPRESS=y ++CONFIG_PSTORE_DEFLATE_COMPRESS_DEFAULT=y ++CONFIG_PSTORE_COMPRESS_DEFAULT="deflate" ++# CONFIG_PSTORE_CONSOLE is not set ++# CONFIG_PSTORE_PMSG is not set ++CONFIG_PSTORE_RAM=m ++# CONFIG_SYSV_FS is not set ++# CONFIG_UFS_FS is not set ++# CONFIG_EROFS_FS is not set ++CONFIG_NETWORK_FILESYSTEMS=y ++CONFIG_NFS_FS=m ++# CONFIG_NFS_V2 is not set ++CONFIG_NFS_V3=m ++CONFIG_NFS_V3_ACL=y ++CONFIG_NFS_V4=m ++CONFIG_NFS_SWAP=y ++CONFIG_NFS_V4_1=y ++CONFIG_NFS_V4_2=y ++CONFIG_PNFS_FILE_LAYOUT=m ++CONFIG_PNFS_BLOCK=m ++CONFIG_PNFS_FLEXFILE_LAYOUT=m ++CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN="kernel.org" ++CONFIG_NFS_V4_1_MIGRATION=y ++CONFIG_NFS_FSCACHE=y ++# CONFIG_NFS_USE_LEGACY_DNS is not set ++CONFIG_NFS_USE_KERNEL_DNS=y ++CONFIG_NFS_DEBUG=y ++CONFIG_NFS_DISABLE_UDP_SUPPORT=y ++CONFIG_NFS_V4_2_READ_PLUS=y ++CONFIG_NFSD=m ++CONFIG_NFSD_V2_ACL=y ++CONFIG_NFSD_V3=y ++CONFIG_NFSD_V3_ACL=y ++CONFIG_NFSD_V4=y ++CONFIG_NFSD_PNFS=y ++CONFIG_NFSD_BLOCKLAYOUT=y ++CONFIG_NFSD_SCSILAYOUT=y ++CONFIG_NFSD_FLEXFILELAYOUT=y ++CONFIG_NFSD_V4_2_INTER_SSC=y ++CONFIG_GRACE_PERIOD=m ++CONFIG_LOCKD=m ++CONFIG_LOCKD_V4=y ++CONFIG_NFS_ACL_SUPPORT=m ++CONFIG_NFS_COMMON=y ++CONFIG_NFS_V4_2_SSC_HELPER=y ++CONFIG_SUNRPC=m ++CONFIG_SUNRPC_GSS=m ++CONFIG_SUNRPC_BACKCHANNEL=y ++CONFIG_SUNRPC_SWAP=y ++CONFIG_RPCSEC_GSS_KRB5=m ++# CONFIG_SUNRPC_DISABLE_INSECURE_ENCTYPES is not set ++CONFIG_SUNRPC_DEBUG=y ++# CONFIG_CEPH_FS is not set ++CONFIG_CIFS=m ++CONFIG_CIFS_STATS2=y ++CONFIG_CIFS_ALLOW_INSECURE_LEGACY=y ++CONFIG_CIFS_UPCALL=y ++CONFIG_CIFS_XATTR=y ++CONFIG_CIFS_POSIX=y ++CONFIG_CIFS_DEBUG=y ++# CONFIG_CIFS_DEBUG2 is not set ++# CONFIG_CIFS_DEBUG_DUMP_KEYS is not set ++CONFIG_CIFS_DFS_UPCALL=y ++CONFIG_CIFS_SWN_UPCALL=y ++CONFIG_CIFS_FSCACHE=y ++# CONFIG_SMB_SERVER is not set ++CONFIG_SMBFS_COMMON=m ++# CONFIG_CODA_FS is not set ++# CONFIG_AFS_FS is not set ++CONFIG_NLS=y ++CONFIG_NLS_DEFAULT="utf8" ++# CONFIG_NLS_CODEPAGE_437 is not set ++# CONFIG_NLS_CODEPAGE_737 is not set ++# CONFIG_NLS_CODEPAGE_775 is not set ++# CONFIG_NLS_CODEPAGE_850 is not set ++# CONFIG_NLS_CODEPAGE_852 is not set ++# CONFIG_NLS_CODEPAGE_855 is not set ++# CONFIG_NLS_CODEPAGE_857 is not set ++# CONFIG_NLS_CODEPAGE_860 is not set ++# CONFIG_NLS_CODEPAGE_861 is not set ++# CONFIG_NLS_CODEPAGE_862 is not set ++# CONFIG_NLS_CODEPAGE_863 is not set ++# CONFIG_NLS_CODEPAGE_864 is not set ++# CONFIG_NLS_CODEPAGE_865 is not set ++CONFIG_NLS_CODEPAGE_866=y ++# CONFIG_NLS_CODEPAGE_869 is not set ++# CONFIG_NLS_CODEPAGE_936 is not set ++# CONFIG_NLS_CODEPAGE_950 is not set ++# CONFIG_NLS_CODEPAGE_932 is not set ++# CONFIG_NLS_CODEPAGE_949 is not set ++# CONFIG_NLS_CODEPAGE_874 is not set ++# CONFIG_NLS_ISO8859_8 is not set ++# CONFIG_NLS_CODEPAGE_1250 is not set ++# CONFIG_NLS_CODEPAGE_1251 is not set ++CONFIG_NLS_ASCII=y ++CONFIG_NLS_ISO8859_1=y ++# CONFIG_NLS_ISO8859_2 is not set ++# CONFIG_NLS_ISO8859_3 is not set ++# CONFIG_NLS_ISO8859_4 is not set ++# CONFIG_NLS_ISO8859_5 is not set ++# CONFIG_NLS_ISO8859_6 is not set ++# CONFIG_NLS_ISO8859_7 is not set ++# CONFIG_NLS_ISO8859_9 is not set ++# CONFIG_NLS_ISO8859_13 is not set ++# CONFIG_NLS_ISO8859_14 is not set ++# CONFIG_NLS_ISO8859_15 is not set ++# CONFIG_NLS_KOI8_R is not set ++# CONFIG_NLS_KOI8_U is not set ++# CONFIG_NLS_MAC_ROMAN is not set ++# CONFIG_NLS_MAC_CELTIC is not set ++# CONFIG_NLS_MAC_CENTEURO is not set ++# CONFIG_NLS_MAC_CROATIAN is not set ++# CONFIG_NLS_MAC_CYRILLIC is not set ++# CONFIG_NLS_MAC_GAELIC is not set ++# CONFIG_NLS_MAC_GREEK is not set ++# CONFIG_NLS_MAC_ICELAND is not set ++# CONFIG_NLS_MAC_INUIT is not set ++# CONFIG_NLS_MAC_ROMANIAN is not set ++# CONFIG_NLS_MAC_TURKISH is not set ++CONFIG_NLS_UTF8=y ++# CONFIG_DLM is not set ++CONFIG_UNICODE=y ++# CONFIG_UNICODE_NORMALIZATION_SELFTEST is not set ++CONFIG_IO_WQ=y ++# end of File systems ++ ++# ++# Security options ++# ++CONFIG_KEYS=y ++CONFIG_KEYS_REQUEST_CACHE=y ++CONFIG_PERSISTENT_KEYRINGS=y ++CONFIG_ENCRYPTED_KEYS=y ++CONFIG_KEY_DH_OPERATIONS=y ++# CONFIG_SECURITY_DMESG_RESTRICT is not set ++# CONFIG_SECURITY is not set ++# CONFIG_SECURITYFS is not set ++CONFIG_HAVE_HARDENED_USERCOPY_ALLOCATOR=y ++CONFIG_HARDENED_USERCOPY=y ++CONFIG_HARDENED_USERCOPY_FALLBACK=y ++# CONFIG_HARDENED_USERCOPY_PAGESPAN is not set ++CONFIG_FORTIFY_SOURCE=y ++# CONFIG_STATIC_USERMODEHELPER is not set ++# CONFIG_IMA_SECURE_AND_OR_TRUSTED_BOOT is not set ++CONFIG_DEFAULT_SECURITY_DAC=y ++CONFIG_LSM="lockdown,yama,integrity,apparmor" ++ ++# ++# Kernel hardening options ++# ++ ++# ++# Memory initialization ++# ++CONFIG_INIT_STACK_NONE=y ++CONFIG_INIT_ON_ALLOC_DEFAULT_ON=y ++# CONFIG_INIT_ON_FREE_DEFAULT_ON is not set ++# end of Memory initialization ++# end of Kernel hardening options ++# end of Security options ++ ++CONFIG_XOR_BLOCKS=m ++CONFIG_ASYNC_CORE=m ++CONFIG_ASYNC_MEMCPY=m ++CONFIG_ASYNC_XOR=m ++CONFIG_ASYNC_PQ=m ++CONFIG_ASYNC_RAID6_RECOV=m ++CONFIG_ASYNC_TX_DISABLE_PQ_VAL_DMA=y ++CONFIG_ASYNC_TX_DISABLE_XOR_VAL_DMA=y ++CONFIG_CRYPTO=y ++ ++# ++# Crypto core or helper ++# ++CONFIG_CRYPTO_ALGAPI=y ++CONFIG_CRYPTO_ALGAPI2=y ++CONFIG_CRYPTO_AEAD=y ++CONFIG_CRYPTO_AEAD2=y ++CONFIG_CRYPTO_SKCIPHER=y ++CONFIG_CRYPTO_SKCIPHER2=y ++CONFIG_CRYPTO_HASH=y ++CONFIG_CRYPTO_HASH2=y ++CONFIG_CRYPTO_RNG=y ++CONFIG_CRYPTO_RNG2=y ++CONFIG_CRYPTO_RNG_DEFAULT=y ++CONFIG_CRYPTO_AKCIPHER2=y ++CONFIG_CRYPTO_AKCIPHER=y ++CONFIG_CRYPTO_KPP2=y ++CONFIG_CRYPTO_KPP=y ++CONFIG_CRYPTO_ACOMP2=y ++CONFIG_CRYPTO_MANAGER=y ++CONFIG_CRYPTO_MANAGER2=y ++CONFIG_CRYPTO_USER=m ++CONFIG_CRYPTO_MANAGER_DISABLE_TESTS=y ++CONFIG_CRYPTO_GF128MUL=y ++CONFIG_CRYPTO_NULL=y ++CONFIG_CRYPTO_NULL2=y ++CONFIG_CRYPTO_PCRYPT=m ++CONFIG_CRYPTO_CRYPTD=y ++CONFIG_CRYPTO_AUTHENC=y ++# CONFIG_CRYPTO_TEST is not set ++CONFIG_CRYPTO_SIMD=y ++CONFIG_CRYPTO_ENGINE=y ++ ++# ++# Public-key cryptography ++# ++CONFIG_CRYPTO_RSA=y ++CONFIG_CRYPTO_DH=y ++CONFIG_CRYPTO_ECC=y ++CONFIG_CRYPTO_ECDH=y ++# CONFIG_CRYPTO_ECDSA is not set ++CONFIG_CRYPTO_ECRDSA=m ++# CONFIG_CRYPTO_SM2 is not set ++CONFIG_CRYPTO_CURVE25519=m ++ ++# ++# Authenticated Encryption with Associated Data ++# ++CONFIG_CRYPTO_CCM=y ++CONFIG_CRYPTO_GCM=y ++CONFIG_CRYPTO_CHACHA20POLY1305=y ++CONFIG_CRYPTO_AEGIS128=m ++CONFIG_CRYPTO_AEGIS128_SIMD=y ++CONFIG_CRYPTO_SEQIV=y ++CONFIG_CRYPTO_ECHAINIV=y ++ ++# ++# Block modes ++# ++CONFIG_CRYPTO_CBC=y ++CONFIG_CRYPTO_CFB=m ++CONFIG_CRYPTO_CTR=y ++CONFIG_CRYPTO_CTS=y ++CONFIG_CRYPTO_ECB=y ++CONFIG_CRYPTO_LRW=m ++CONFIG_CRYPTO_OFB=m ++CONFIG_CRYPTO_PCBC=m ++CONFIG_CRYPTO_XTS=y ++CONFIG_CRYPTO_KEYWRAP=m ++CONFIG_CRYPTO_NHPOLY1305=m ++CONFIG_CRYPTO_ADIANTUM=m ++CONFIG_CRYPTO_ESSIV=m ++ ++# ++# Hash modes ++# ++CONFIG_CRYPTO_CMAC=y ++CONFIG_CRYPTO_HMAC=y ++CONFIG_CRYPTO_XCBC=y ++CONFIG_CRYPTO_VMAC=y ++ ++# ++# Digest ++# ++CONFIG_CRYPTO_CRC32C=y ++CONFIG_CRYPTO_CRC32=y ++CONFIG_CRYPTO_XXHASH=y ++CONFIG_CRYPTO_BLAKE2B=y ++CONFIG_CRYPTO_BLAKE2S=m ++CONFIG_CRYPTO_CRCT10DIF=y ++CONFIG_CRYPTO_GHASH=y ++CONFIG_CRYPTO_POLY1305=y ++CONFIG_CRYPTO_MD4=y ++CONFIG_CRYPTO_MD5=y ++CONFIG_CRYPTO_MICHAEL_MIC=y ++CONFIG_CRYPTO_RMD160=y ++CONFIG_CRYPTO_SHA1=y ++CONFIG_CRYPTO_SHA256=y ++CONFIG_CRYPTO_SHA512=y ++CONFIG_CRYPTO_SHA3=y ++CONFIG_CRYPTO_SM3=m ++CONFIG_CRYPTO_STREEBOG=m ++CONFIG_CRYPTO_WP512=y ++ ++# ++# Ciphers ++# ++CONFIG_CRYPTO_AES=y ++CONFIG_CRYPTO_AES_TI=y ++CONFIG_CRYPTO_ANUBIS=y ++CONFIG_CRYPTO_ARC4=m ++CONFIG_CRYPTO_BLOWFISH=y ++CONFIG_CRYPTO_BLOWFISH_COMMON=y ++CONFIG_CRYPTO_CAMELLIA=y ++CONFIG_CRYPTO_CAST_COMMON=y ++CONFIG_CRYPTO_CAST5=y ++CONFIG_CRYPTO_CAST6=y ++CONFIG_CRYPTO_DES=y ++CONFIG_CRYPTO_FCRYPT=y ++CONFIG_CRYPTO_KHAZAD=y ++CONFIG_CRYPTO_CHACHA20=y ++CONFIG_CRYPTO_SEED=y ++CONFIG_CRYPTO_SERPENT=y ++CONFIG_CRYPTO_SM4=m ++CONFIG_CRYPTO_TEA=y ++CONFIG_CRYPTO_TWOFISH=y ++CONFIG_CRYPTO_TWOFISH_COMMON=y ++ ++# ++# Compression ++# ++CONFIG_CRYPTO_DEFLATE=y ++CONFIG_CRYPTO_LZO=y ++CONFIG_CRYPTO_842=m ++CONFIG_CRYPTO_LZ4=m ++CONFIG_CRYPTO_LZ4HC=m ++CONFIG_CRYPTO_ZSTD=y ++ ++# ++# Random Number Generation ++# ++CONFIG_CRYPTO_ANSI_CPRNG=m ++CONFIG_CRYPTO_DRBG_MENU=y ++CONFIG_CRYPTO_DRBG_HMAC=y ++CONFIG_CRYPTO_DRBG_HASH=y ++CONFIG_CRYPTO_DRBG_CTR=y ++CONFIG_CRYPTO_DRBG=y ++CONFIG_CRYPTO_JITTERENTROPY=y ++CONFIG_CRYPTO_USER_API=m ++CONFIG_CRYPTO_USER_API_HASH=m ++CONFIG_CRYPTO_USER_API_SKCIPHER=m ++CONFIG_CRYPTO_USER_API_RNG=m ++# CONFIG_CRYPTO_USER_API_RNG_CAVP is not set ++CONFIG_CRYPTO_USER_API_AEAD=m ++CONFIG_CRYPTO_USER_API_ENABLE_OBSOLETE=y ++CONFIG_CRYPTO_STATS=y ++CONFIG_CRYPTO_HASH_INFO=y ++ ++# ++# Crypto library routines ++# ++CONFIG_CRYPTO_LIB_AES=y ++CONFIG_CRYPTO_LIB_ARC4=m ++CONFIG_CRYPTO_LIB_BLAKE2S_GENERIC=m ++CONFIG_CRYPTO_LIB_BLAKE2S=m ++CONFIG_CRYPTO_ARCH_HAVE_LIB_CHACHA=y ++CONFIG_CRYPTO_LIB_CHACHA_GENERIC=y ++CONFIG_CRYPTO_LIB_CHACHA=m ++CONFIG_CRYPTO_LIB_CURVE25519_GENERIC=m ++CONFIG_CRYPTO_LIB_CURVE25519=m ++CONFIG_CRYPTO_LIB_DES=y ++CONFIG_CRYPTO_LIB_POLY1305_RSIZE=9 ++CONFIG_CRYPTO_ARCH_HAVE_LIB_POLY1305=m ++CONFIG_CRYPTO_LIB_POLY1305_GENERIC=y ++CONFIG_CRYPTO_LIB_POLY1305=m ++CONFIG_CRYPTO_LIB_CHACHA20POLY1305=m ++CONFIG_CRYPTO_LIB_SHA256=y ++CONFIG_CRYPTO_LIB_SM4=m ++CONFIG_CRYPTO_HW=y ++CONFIG_CRYPTO_DEV_ATMEL_I2C=m ++CONFIG_CRYPTO_DEV_ATMEL_ECC=m ++CONFIG_CRYPTO_DEV_ATMEL_SHA204A=m ++# CONFIG_CRYPTO_DEV_CCP is not set ++CONFIG_CRYPTO_DEV_NITROX=m ++CONFIG_CRYPTO_DEV_NITROX_CNN55XX=m ++CONFIG_CRYPTO_DEV_CAVIUM_ZIP=m ++CONFIG_CRYPTO_DEV_ROCKCHIP=m ++CONFIG_CRYPTO_DEV_VIRTIO=m ++CONFIG_CRYPTO_DEV_SAFEXCEL=m ++CONFIG_CRYPTO_DEV_CCREE=m ++CONFIG_CRYPTO_DEV_HISI_SEC=m ++CONFIG_CRYPTO_DEV_AMLOGIC_GXL=y ++CONFIG_CRYPTO_DEV_AMLOGIC_GXL_DEBUG=y ++CONFIG_ASYMMETRIC_KEY_TYPE=y ++CONFIG_ASYMMETRIC_PUBLIC_KEY_SUBTYPE=y ++CONFIG_X509_CERTIFICATE_PARSER=y ++CONFIG_PKCS8_PRIVATE_KEY_PARSER=m ++CONFIG_PKCS7_MESSAGE_PARSER=y ++CONFIG_PKCS7_TEST_KEY=m ++CONFIG_SIGNED_PE_FILE_VERIFICATION=y ++ ++# ++# Certificates for signature checking ++# ++CONFIG_SYSTEM_TRUSTED_KEYRING=y ++CONFIG_SYSTEM_TRUSTED_KEYS="" ++CONFIG_SYSTEM_EXTRA_CERTIFICATE=y ++CONFIG_SYSTEM_EXTRA_CERTIFICATE_SIZE=4096 ++CONFIG_SECONDARY_TRUSTED_KEYRING=y ++CONFIG_SYSTEM_BLACKLIST_KEYRING=y ++CONFIG_SYSTEM_BLACKLIST_HASH_LIST="" ++# CONFIG_SYSTEM_REVOCATION_LIST is not set ++# end of Certificates for signature checking ++ ++CONFIG_BINARY_PRINTF=y ++ ++# ++# Library routines ++# ++CONFIG_RAID6_PQ=m ++CONFIG_RAID6_PQ_BENCHMARK=y ++CONFIG_LINEAR_RANGES=y ++CONFIG_PACKING=y ++CONFIG_BITREVERSE=y ++CONFIG_HAVE_ARCH_BITREVERSE=y ++CONFIG_GENERIC_STRNCPY_FROM_USER=y ++CONFIG_GENERIC_STRNLEN_USER=y ++CONFIG_GENERIC_NET_UTILS=y ++CONFIG_GENERIC_FIND_FIRST_BIT=y ++CONFIG_CORDIC=m ++# CONFIG_PRIME_NUMBERS is not set ++CONFIG_RATIONAL=y ++CONFIG_GENERIC_PCI_IOMAP=y ++CONFIG_ARCH_USE_CMPXCHG_LOCKREF=y ++CONFIG_ARCH_HAS_FAST_MULTIPLIER=y ++CONFIG_ARCH_USE_SYM_ANNOTATIONS=y ++# CONFIG_INDIRECT_PIO is not set ++CONFIG_CRC_CCITT=y ++CONFIG_CRC16=y ++CONFIG_CRC_T10DIF=y ++CONFIG_CRC_ITU_T=y ++CONFIG_CRC32=y ++# CONFIG_CRC32_SELFTEST is not set ++CONFIG_CRC32_SLICEBY8=y ++# CONFIG_CRC32_SLICEBY4 is not set ++# CONFIG_CRC32_SARWATE is not set ++# CONFIG_CRC32_BIT is not set ++CONFIG_CRC64=y ++CONFIG_CRC4=m ++CONFIG_CRC7=y ++CONFIG_LIBCRC32C=y ++CONFIG_CRC8=m ++CONFIG_XXHASH=y ++CONFIG_AUDIT_GENERIC=y ++CONFIG_AUDIT_ARCH_COMPAT_GENERIC=y ++CONFIG_AUDIT_COMPAT_GENERIC=y ++# CONFIG_RANDOM32_SELFTEST is not set ++CONFIG_842_COMPRESS=m ++CONFIG_842_DECOMPRESS=m ++CONFIG_ZLIB_INFLATE=y ++CONFIG_ZLIB_DEFLATE=y ++CONFIG_LZO_COMPRESS=y ++CONFIG_LZO_DECOMPRESS=y ++CONFIG_LZ4_COMPRESS=m ++CONFIG_LZ4HC_COMPRESS=m ++CONFIG_LZ4_DECOMPRESS=y ++CONFIG_ZSTD_COMPRESS=y ++CONFIG_ZSTD_DECOMPRESS=y ++CONFIG_XZ_DEC=y ++CONFIG_XZ_DEC_X86=y ++CONFIG_XZ_DEC_POWERPC=y ++CONFIG_XZ_DEC_IA64=y ++CONFIG_XZ_DEC_ARM=y ++CONFIG_XZ_DEC_ARMTHUMB=y ++CONFIG_XZ_DEC_SPARC=y ++CONFIG_XZ_DEC_BCJ=y ++CONFIG_XZ_DEC_TEST=m ++CONFIG_DECOMPRESS_GZIP=y ++CONFIG_DECOMPRESS_BZIP2=y ++CONFIG_DECOMPRESS_LZMA=y ++CONFIG_DECOMPRESS_XZ=y ++CONFIG_DECOMPRESS_LZO=y ++CONFIG_DECOMPRESS_LZ4=y ++CONFIG_DECOMPRESS_ZSTD=y ++CONFIG_GENERIC_ALLOCATOR=y ++CONFIG_REED_SOLOMON=m ++CONFIG_REED_SOLOMON_ENC8=y ++CONFIG_REED_SOLOMON_DEC8=y ++CONFIG_REED_SOLOMON_ENC16=y ++CONFIG_REED_SOLOMON_DEC16=y ++CONFIG_TEXTSEARCH=y ++CONFIG_TEXTSEARCH_KMP=m ++CONFIG_TEXTSEARCH_BM=m ++CONFIG_TEXTSEARCH_FSM=m ++CONFIG_INTERVAL_TREE=y ++CONFIG_XARRAY_MULTI=y ++CONFIG_ASSOCIATIVE_ARRAY=y ++CONFIG_HAS_IOMEM=y ++CONFIG_HAS_IOPORT_MAP=y ++CONFIG_HAS_DMA=y ++CONFIG_DMA_OPS=y ++CONFIG_NEED_SG_DMA_LENGTH=y ++CONFIG_NEED_DMA_MAP_STATE=y ++CONFIG_ARCH_DMA_ADDR_T_64BIT=y ++CONFIG_DMA_DECLARE_COHERENT=y ++CONFIG_ARCH_HAS_SETUP_DMA_OPS=y ++CONFIG_ARCH_HAS_TEARDOWN_DMA_OPS=y ++CONFIG_ARCH_HAS_SYNC_DMA_FOR_DEVICE=y ++CONFIG_ARCH_HAS_SYNC_DMA_FOR_CPU=y ++CONFIG_ARCH_HAS_DMA_PREP_COHERENT=y ++CONFIG_SWIOTLB=y ++# CONFIG_DMA_RESTRICTED_POOL is not set ++CONFIG_DMA_NONCOHERENT_MMAP=y ++CONFIG_DMA_COHERENT_POOL=y ++CONFIG_DMA_REMAP=y ++CONFIG_DMA_DIRECT_REMAP=y ++CONFIG_DMA_CMA=y ++CONFIG_DMA_PERNUMA_CMA=y ++ ++# ++# Default contiguous memory area size: ++# ++CONFIG_CMA_SIZE_MBYTES=128 ++CONFIG_CMA_SIZE_SEL_MBYTES=y ++# CONFIG_CMA_SIZE_SEL_PERCENTAGE is not set ++# CONFIG_CMA_SIZE_SEL_MIN is not set ++# CONFIG_CMA_SIZE_SEL_MAX is not set ++CONFIG_CMA_ALIGNMENT=8 ++# CONFIG_DMA_API_DEBUG is not set ++# CONFIG_DMA_MAP_BENCHMARK is not set ++CONFIG_SGL_ALLOC=y ++CONFIG_CPU_RMAP=y ++CONFIG_DQL=y ++CONFIG_GLOB=y ++CONFIG_GLOB_SELFTEST=m ++CONFIG_NLATTR=y ++CONFIG_CLZ_TAB=y ++CONFIG_IRQ_POLL=y ++CONFIG_MPILIB=y ++CONFIG_DIMLIB=y ++CONFIG_LIBFDT=y ++CONFIG_OID_REGISTRY=y ++CONFIG_UCS2_STRING=y ++CONFIG_HAVE_GENERIC_VDSO=y ++CONFIG_GENERIC_GETTIMEOFDAY=y ++CONFIG_GENERIC_VDSO_TIME_NS=y ++CONFIG_FONT_SUPPORT=y ++CONFIG_FONTS=y ++CONFIG_FONT_8x8=y ++CONFIG_FONT_8x16=y ++# CONFIG_FONT_6x11 is not set ++# CONFIG_FONT_7x14 is not set ++# CONFIG_FONT_PEARL_8x8 is not set ++CONFIG_FONT_ACORN_8x8=y ++# CONFIG_FONT_MINI_4x6 is not set ++CONFIG_FONT_6x10=y ++# CONFIG_FONT_10x18 is not set ++# CONFIG_FONT_SUN8x16 is not set ++# CONFIG_FONT_SUN12x22 is not set ++CONFIG_FONT_TER16x32=y ++# CONFIG_FONT_6x8 is not set ++CONFIG_SG_SPLIT=y ++CONFIG_SG_POOL=y ++CONFIG_ARCH_STACKWALK=y ++CONFIG_SBITMAP=y ++# end of Library routines ++ ++CONFIG_GENERIC_LIB_DEVMEM_IS_ALLOWED=y ++ ++# ++# Kernel hacking ++# ++ ++# ++# printk and dmesg options ++# ++CONFIG_PRINTK_TIME=y ++# CONFIG_PRINTK_CALLER is not set ++# CONFIG_STACKTRACE_BUILD_ID is not set ++CONFIG_CONSOLE_LOGLEVEL_DEFAULT=7 ++CONFIG_CONSOLE_LOGLEVEL_QUIET=4 ++CONFIG_MESSAGE_LOGLEVEL_DEFAULT=4 ++# CONFIG_BOOT_PRINTK_DELAY is not set ++CONFIG_DYNAMIC_DEBUG=y ++CONFIG_DYNAMIC_DEBUG_CORE=y ++CONFIG_SYMBOLIC_ERRNAME=y ++CONFIG_DEBUG_BUGVERBOSE=y ++# end of printk and dmesg options ++ ++# ++# Compile-time checks and compiler options ++# ++CONFIG_DEBUG_INFO=y ++CONFIG_DEBUG_INFO_REDUCED=y ++# CONFIG_DEBUG_INFO_COMPRESSED is not set ++# CONFIG_DEBUG_INFO_SPLIT is not set ++CONFIG_DEBUG_INFO_DWARF_TOOLCHAIN_DEFAULT=y ++# CONFIG_DEBUG_INFO_DWARF4 is not set ++# CONFIG_DEBUG_INFO_DWARF5 is not set ++CONFIG_PAHOLE_HAS_SPLIT_BTF=y ++# CONFIG_GDB_SCRIPTS is not set ++CONFIG_FRAME_WARN=2048 ++# CONFIG_STRIP_ASM_SYMS is not set ++# CONFIG_READABLE_ASM is not set ++# CONFIG_HEADERS_INSTALL is not set ++# CONFIG_DEBUG_SECTION_MISMATCH is not set ++CONFIG_SECTION_MISMATCH_WARN_ONLY=y ++# CONFIG_DEBUG_FORCE_FUNCTION_ALIGN_64B is not set ++CONFIG_ARCH_WANT_FRAME_POINTERS=y ++CONFIG_FRAME_POINTER=y ++# CONFIG_VMLINUX_MAP is not set ++# CONFIG_DEBUG_FORCE_WEAK_PER_CPU is not set ++# end of Compile-time checks and compiler options ++ ++# ++# Generic Kernel Debugging Instruments ++# ++CONFIG_MAGIC_SYSRQ=y ++CONFIG_MAGIC_SYSRQ_DEFAULT_ENABLE=0x1 ++CONFIG_MAGIC_SYSRQ_SERIAL=y ++CONFIG_MAGIC_SYSRQ_SERIAL_SEQUENCE="" ++CONFIG_DEBUG_FS=y ++CONFIG_DEBUG_FS_ALLOW_ALL=y ++# CONFIG_DEBUG_FS_DISALLOW_MOUNT is not set ++# CONFIG_DEBUG_FS_ALLOW_NONE is not set ++CONFIG_HAVE_ARCH_KGDB=y ++CONFIG_KGDB=y ++CONFIG_KGDB_HONOUR_BLOCKLIST=y ++CONFIG_KGDB_SERIAL_CONSOLE=y ++# CONFIG_KGDB_TESTS is not set ++CONFIG_KGDB_KDB=y ++CONFIG_KDB_DEFAULT_ENABLE=0x1 ++# CONFIG_KDB_KEYBOARD is not set ++CONFIG_KDB_CONTINUE_CATASTROPHIC=0 ++CONFIG_ARCH_HAS_UBSAN_SANITIZE_ALL=y ++# CONFIG_UBSAN is not set ++# end of Generic Kernel Debugging Instruments ++ ++CONFIG_DEBUG_KERNEL=y ++CONFIG_DEBUG_MISC=y ++ ++# ++# Memory Debugging ++# ++# CONFIG_PAGE_EXTENSION is not set ++# CONFIG_DEBUG_PAGEALLOC is not set ++# CONFIG_PAGE_OWNER is not set ++# CONFIG_PAGE_POISONING is not set ++# CONFIG_DEBUG_PAGE_REF is not set ++# CONFIG_DEBUG_RODATA_TEST is not set ++CONFIG_ARCH_HAS_DEBUG_WX=y ++# CONFIG_DEBUG_WX is not set ++CONFIG_GENERIC_PTDUMP=y ++# CONFIG_PTDUMP_DEBUGFS is not set ++# CONFIG_DEBUG_OBJECTS is not set ++# CONFIG_SLUB_DEBUG_ON is not set ++# CONFIG_SLUB_STATS is not set ++CONFIG_HAVE_DEBUG_KMEMLEAK=y ++# CONFIG_DEBUG_KMEMLEAK is not set ++# CONFIG_DEBUG_STACK_USAGE is not set ++# CONFIG_SCHED_STACK_END_CHECK is not set ++CONFIG_ARCH_HAS_DEBUG_VM_PGTABLE=y ++# CONFIG_DEBUG_VM is not set ++# CONFIG_DEBUG_VM_PGTABLE is not set ++CONFIG_ARCH_HAS_DEBUG_VIRTUAL=y ++# CONFIG_DEBUG_VIRTUAL is not set ++CONFIG_DEBUG_MEMORY_INIT=y ++# CONFIG_DEBUG_PER_CPU_MAPS is not set ++CONFIG_HAVE_ARCH_KASAN=y ++CONFIG_HAVE_ARCH_KASAN_SW_TAGS=y ++CONFIG_HAVE_ARCH_KASAN_HW_TAGS=y ++CONFIG_HAVE_ARCH_KASAN_VMALLOC=y ++CONFIG_CC_HAS_KASAN_GENERIC=y ++CONFIG_CC_HAS_WORKING_NOSANITIZE_ADDRESS=y ++# CONFIG_KASAN is not set ++CONFIG_HAVE_ARCH_KFENCE=y ++# CONFIG_KFENCE is not set ++# end of Memory Debugging ++ ++# CONFIG_DEBUG_SHIRQ is not set ++ ++# ++# Debug Oops, Lockups and Hangs ++# ++CONFIG_PANIC_ON_OOPS=y ++CONFIG_PANIC_ON_OOPS_VALUE=1 ++CONFIG_PANIC_TIMEOUT=0 ++# CONFIG_SOFTLOCKUP_DETECTOR is not set ++# CONFIG_DETECT_HUNG_TASK is not set ++# CONFIG_WQ_WATCHDOG is not set ++CONFIG_TEST_LOCKUP=m ++# end of Debug Oops, Lockups and Hangs ++ ++# ++# Scheduler Debugging ++# ++CONFIG_SCHED_DEBUG=y ++CONFIG_SCHED_INFO=y ++CONFIG_SCHEDSTATS=y ++# end of Scheduler Debugging ++ ++# CONFIG_DEBUG_TIMEKEEPING is not set ++CONFIG_DEBUG_PREEMPT=y ++ ++# ++# Lock Debugging (spinlocks, mutexes, etc...) ++# ++CONFIG_LOCK_DEBUGGING_SUPPORT=y ++CONFIG_PROVE_LOCKING=y ++# CONFIG_PROVE_RAW_LOCK_NESTING is not set ++# CONFIG_LOCK_STAT is not set ++CONFIG_DEBUG_RT_MUTEXES=y ++CONFIG_DEBUG_SPINLOCK=y ++CONFIG_DEBUG_MUTEXES=y ++CONFIG_DEBUG_WW_MUTEX_SLOWPATH=y ++CONFIG_DEBUG_RWSEMS=y ++CONFIG_DEBUG_LOCK_ALLOC=y ++CONFIG_LOCKDEP=y ++CONFIG_LOCKDEP_BITS=15 ++CONFIG_LOCKDEP_CHAINS_BITS=16 ++CONFIG_LOCKDEP_STACK_TRACE_BITS=19 ++CONFIG_LOCKDEP_STACK_TRACE_HASH_BITS=14 ++CONFIG_LOCKDEP_CIRCULAR_QUEUE_BITS=12 ++# CONFIG_DEBUG_LOCKDEP is not set ++# CONFIG_DEBUG_ATOMIC_SLEEP is not set ++# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set ++# CONFIG_LOCK_TORTURE_TEST is not set ++# CONFIG_WW_MUTEX_SELFTEST is not set ++# CONFIG_SCF_TORTURE_TEST is not set ++# CONFIG_CSD_LOCK_WAIT_DEBUG is not set ++# end of Lock Debugging (spinlocks, mutexes, etc...) ++ ++CONFIG_TRACE_IRQFLAGS=y ++# CONFIG_DEBUG_IRQFLAGS is not set ++CONFIG_STACKTRACE=y ++# CONFIG_WARN_ALL_UNSEEDED_RANDOM is not set ++# CONFIG_DEBUG_KOBJECT is not set ++ ++# ++# Debug kernel data structures ++# ++# CONFIG_DEBUG_LIST is not set ++# CONFIG_DEBUG_PLIST is not set ++# CONFIG_DEBUG_SG is not set ++# CONFIG_DEBUG_NOTIFIERS is not set ++# CONFIG_BUG_ON_DATA_CORRUPTION is not set ++# end of Debug kernel data structures ++ ++# CONFIG_DEBUG_CREDENTIALS is not set ++ ++# ++# RCU Debugging ++# ++CONFIG_PROVE_RCU=y ++CONFIG_TORTURE_TEST=m ++# CONFIG_RCU_SCALE_TEST is not set ++CONFIG_RCU_TORTURE_TEST=m ++# CONFIG_RCU_REF_SCALE_TEST is not set ++CONFIG_RCU_CPU_STALL_TIMEOUT=60 ++CONFIG_RCU_TRACE=y ++# CONFIG_RCU_EQS_DEBUG is not set ++# end of RCU Debugging ++ ++# CONFIG_DEBUG_WQ_FORCE_RR_CPU is not set ++# CONFIG_CPU_HOTPLUG_STATE_CONTROL is not set ++CONFIG_LATENCYTOP=y ++CONFIG_NOP_TRACER=y ++CONFIG_HAVE_FUNCTION_TRACER=y ++CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y ++CONFIG_HAVE_DYNAMIC_FTRACE=y ++CONFIG_HAVE_DYNAMIC_FTRACE_WITH_REGS=y ++CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y ++CONFIG_HAVE_SYSCALL_TRACEPOINTS=y ++CONFIG_HAVE_C_RECORDMCOUNT=y ++CONFIG_TRACE_CLOCK=y ++CONFIG_RING_BUFFER=y ++CONFIG_EVENT_TRACING=y ++CONFIG_CONTEXT_SWITCH_TRACER=y ++CONFIG_PREEMPTIRQ_TRACEPOINTS=y ++CONFIG_TRACING=y ++CONFIG_TRACING_SUPPORT=y ++CONFIG_FTRACE=y ++# CONFIG_BOOTTIME_TRACING is not set ++# CONFIG_FUNCTION_TRACER is not set ++# CONFIG_STACK_TRACER is not set ++# CONFIG_IRQSOFF_TRACER is not set ++# CONFIG_PREEMPT_TRACER is not set ++# CONFIG_SCHED_TRACER is not set ++# CONFIG_HWLAT_TRACER is not set ++# CONFIG_OSNOISE_TRACER is not set ++# CONFIG_TIMERLAT_TRACER is not set ++# CONFIG_ENABLE_DEFAULT_TRACERS is not set ++# CONFIG_FTRACE_SYSCALLS is not set ++# CONFIG_TRACER_SNAPSHOT is not set ++CONFIG_BRANCH_PROFILE_NONE=y ++# CONFIG_PROFILE_ANNOTATED_BRANCHES is not set ++# CONFIG_BLK_DEV_IO_TRACE is not set ++CONFIG_KPROBE_EVENTS=y ++CONFIG_UPROBE_EVENTS=y ++CONFIG_BPF_EVENTS=y ++CONFIG_DYNAMIC_EVENTS=y ++CONFIG_PROBE_EVENTS=y ++# CONFIG_BPF_KPROBE_OVERRIDE is not set ++# CONFIG_SYNTH_EVENTS is not set ++# CONFIG_HIST_TRIGGERS is not set ++# CONFIG_TRACE_EVENT_INJECT is not set ++# CONFIG_TRACEPOINT_BENCHMARK is not set ++# CONFIG_RING_BUFFER_BENCHMARK is not set ++# CONFIG_TRACE_EVAL_MAP_FILE is not set ++# CONFIG_RING_BUFFER_STARTUP_TEST is not set ++# CONFIG_RING_BUFFER_VALIDATE_TIME_DELTAS is not set ++# CONFIG_PREEMPTIRQ_DELAY_TEST is not set ++# CONFIG_KPROBE_EVENT_GEN_TEST is not set ++# CONFIG_SAMPLES is not set ++CONFIG_STRICT_DEVMEM=y ++# CONFIG_IO_STRICT_DEVMEM is not set ++ ++# ++# arm64 Debugging ++# ++CONFIG_PID_IN_CONTEXTIDR=y ++# CONFIG_DEBUG_EFI is not set ++# CONFIG_ARM64_RELOC_TEST is not set ++CONFIG_CORESIGHT=m ++CONFIG_CORESIGHT_LINKS_AND_SINKS=m ++CONFIG_CORESIGHT_LINK_AND_SINK_TMC=m ++CONFIG_CORESIGHT_CATU=m ++CONFIG_CORESIGHT_SINK_TPIU=m ++CONFIG_CORESIGHT_SINK_ETBV10=m ++CONFIG_CORESIGHT_SOURCE_ETM4X=m ++# CONFIG_ETM4X_IMPDEF_FEATURE is not set ++CONFIG_CORESIGHT_STM=m ++CONFIG_CORESIGHT_CPU_DEBUG=m ++CONFIG_CORESIGHT_CTI=m ++CONFIG_CORESIGHT_CTI_INTEGRATION_REGS=y ++# CONFIG_CORESIGHT_TRBE is not set ++# end of arm64 Debugging ++ ++# ++# Kernel Testing and Coverage ++# ++CONFIG_KUNIT=m ++# CONFIG_KUNIT_DEBUGFS is not set ++# CONFIG_KUNIT_TEST is not set ++# CONFIG_KUNIT_EXAMPLE_TEST is not set ++# CONFIG_KUNIT_ALL_TESTS is not set ++# CONFIG_NOTIFIER_ERROR_INJECTION is not set ++CONFIG_FUNCTION_ERROR_INJECTION=y ++# CONFIG_FAULT_INJECTION is not set ++CONFIG_ARCH_HAS_KCOV=y ++CONFIG_CC_HAS_SANCOV_TRACE_PC=y ++# CONFIG_KCOV is not set ++CONFIG_RUNTIME_TESTING_MENU=y ++# CONFIG_LKDTM is not set ++# CONFIG_TEST_LIST_SORT is not set ++# CONFIG_TEST_MIN_HEAP is not set ++# CONFIG_TEST_SORT is not set ++# CONFIG_TEST_DIV64 is not set ++# CONFIG_KPROBES_SANITY_TEST is not set ++CONFIG_BACKTRACE_SELF_TEST=m ++CONFIG_RBTREE_TEST=m ++CONFIG_REED_SOLOMON_TEST=m ++CONFIG_INTERVAL_TREE_TEST=m ++CONFIG_PERCPU_TEST=m ++# CONFIG_ATOMIC64_SELFTEST is not set ++CONFIG_ASYNC_RAID6_TEST=m ++# CONFIG_TEST_HEXDUMP is not set ++# CONFIG_STRING_SELFTEST is not set ++# CONFIG_TEST_STRING_HELPERS is not set ++CONFIG_TEST_STRSCPY=m ++# CONFIG_TEST_KSTRTOX is not set ++# CONFIG_TEST_PRINTF is not set ++# CONFIG_TEST_SCANF is not set ++# CONFIG_TEST_BITMAP is not set ++# CONFIG_TEST_UUID is not set ++CONFIG_TEST_XARRAY=m ++# CONFIG_TEST_OVERFLOW is not set ++# CONFIG_TEST_RHASHTABLE is not set ++# CONFIG_TEST_HASH is not set ++# CONFIG_TEST_IDA is not set ++# CONFIG_TEST_LKM is not set ++# CONFIG_TEST_BITOPS is not set ++CONFIG_TEST_VMALLOC=m ++# CONFIG_TEST_USER_COPY is not set ++CONFIG_TEST_BPF=m ++CONFIG_TEST_BLACKHOLE_DEV=m ++# CONFIG_FIND_BIT_BENCHMARK is not set ++# CONFIG_TEST_FIRMWARE is not set ++# CONFIG_TEST_SYSCTL is not set ++# CONFIG_BITFIELD_KUNIT is not set ++# CONFIG_RESOURCE_KUNIT_TEST is not set ++# CONFIG_SYSCTL_KUNIT_TEST is not set ++# CONFIG_LIST_KUNIT_TEST is not set ++# CONFIG_LINEAR_RANGES_TEST is not set ++# CONFIG_CMDLINE_KUNIT_TEST is not set ++# CONFIG_BITS_TEST is not set ++# CONFIG_SLUB_KUNIT_TEST is not set ++# CONFIG_RATIONAL_KUNIT_TEST is not set ++# CONFIG_TEST_UDELAY is not set ++# CONFIG_TEST_STATIC_KEYS is not set ++# CONFIG_TEST_KMOD is not set ++CONFIG_TEST_MEMCAT_P=m ++CONFIG_TEST_STACKINIT=m ++# CONFIG_TEST_MEMINIT is not set ++# CONFIG_TEST_FREE_PAGES is not set ++CONFIG_ARCH_USE_MEMTEST=y ++CONFIG_MEMTEST=y ++# end of Kernel Testing and Coverage ++# end of Kernel hacking +diff --git a/drivers/clk/Makefile b/drivers/clk/Makefile +index e42312121e51..aecbb26b7fb5 100644 +--- a/drivers/clk/Makefile ++++ b/drivers/clk/Makefile +@@ -76,6 +76,7 @@ obj-$(CONFIG_COMMON_CLK_AT91) += at91/ + obj-$(CONFIG_ARCH_ARTPEC) += axis/ + obj-$(CONFIG_ARC_PLAT_AXS10X) += axs10x/ + obj-$(CONFIG_CLK_BAIKAL_T1) += baikal-t1/ ++obj-$(CONFIG_ARCH_BAIKAL) += baikal/ + obj-y += bcm/ + obj-$(CONFIG_ARCH_BERLIN) += berlin/ + obj-$(CONFIG_ARCH_DAVINCI) += davinci/ +diff --git a/drivers/clk/baikal/Makefile b/drivers/clk/baikal/Makefile +new file mode 100644 +index 000000000000..56aa4de4081c +--- /dev/null ++++ b/drivers/clk/baikal/Makefile +@@ -0,0 +1 @@ ++obj-y += clk-baikal.o +\ No newline at end of file +diff --git a/drivers/clk/baikal/clk-baikal.c b/drivers/clk/baikal/clk-baikal.c +new file mode 100644 +index 000000000000..8931567def21 +--- /dev/null ++++ b/drivers/clk/baikal/clk-baikal.c +@@ -0,0 +1,371 @@ ++// SPDX-License-Identifier: GPL-2.0-or-later ++/* ++ * clk-baikal.c - Baikal-M clock driver. ++ * ++ * Copyright (C) 2015,2016,2020,2021 Baikal Electronics JSC ++ * Author: Ekaterina Skachko ++ */ ++ ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++ ++#define CMU_PLL_SET_RATE 0 ++#define CMU_PLL_GET_RATE 1 ++#define CMU_PLL_ENABLE 2 ++#define CMU_PLL_DISABLE 3 ++#define CMU_PLL_ROUND_RATE 4 ++#define CMU_PLL_IS_ENABLED 5 ++#define CMU_CLK_CH_SET_RATE 6 ++#define CMU_CLK_CH_GET_RATE 7 ++#define CMU_CLK_CH_ENABLE 8 ++#define CMU_CLK_CH_DISABLE 9 ++#define CMU_CLK_CH_ROUND_RATE 10 ++#define CMU_CLK_CH_IS_ENABLED 11 ++ ++struct baikal_clk_cmu { ++ struct clk_hw hw; ++ uint32_t cmu_id; ++ unsigned int parent; ++ const char *name; ++ spinlock_t *lock; ++ void __iomem *reg; ++ unsigned int latency; /* ns */ ++ unsigned int min, max, step; ++ unsigned int clk_ch_num; ++ uint32_t is_clk_ch; ++}; ++ ++#define to_baikal_cmu(_hw) container_of(_hw, struct baikal_clk_cmu, hw) ++ ++/* Pointer to the place on handling SMC CMU calls in monitor */ ++#define BAIKAL_SMC_LCRU_ID 0x82000000 ++ ++static int baikal_clk_enable(struct clk_hw *hw) ++{ ++ struct arm_smccc_res res; ++ struct baikal_clk_cmu *pclk = to_baikal_cmu(hw); ++ uint32_t cmd; ++ ++ if (pclk->is_clk_ch) { ++ cmd = CMU_CLK_CH_ENABLE; ++ } else { ++ cmd = CMU_PLL_ENABLE; ++ } ++ ++ /* If clock valid */ ++ arm_smccc_smc(BAIKAL_SMC_LCRU_ID, pclk->cmu_id, cmd, 0, ++ pclk->parent, 0, 0, 0, &res); ++ ++ pr_debug("%s(%s, %s@0x%x): %s\n", ++ __func__, ++ pclk->name, ++ pclk->is_clk_ch ? "clkch" : "pll", ++ pclk->cmu_id, ++ res.a0 ? "error" : "ok"); ++ ++ return res.a0; ++} ++ ++static void baikal_clk_disable(struct clk_hw *hw) ++{ ++ struct arm_smccc_res res; ++ struct baikal_clk_cmu *pclk = to_baikal_cmu(hw); ++ uint32_t cmd; ++ ++ if (pclk->is_clk_ch) { ++ cmd = CMU_CLK_CH_DISABLE; ++ } else { ++ cmd = CMU_PLL_DISABLE; ++ } ++ ++ /* If clock valid */ ++ arm_smccc_smc(BAIKAL_SMC_LCRU_ID, pclk->cmu_id, cmd, 0, ++ pclk->parent, 0, 0, 0, &res); ++ ++ pr_debug("%s(%s, %s@0x%x): %s\n", ++ __func__, ++ pclk->name, ++ pclk->is_clk_ch ? "clkch" : "pll", ++ pclk->cmu_id, ++ res.a0 ? "error" : "ok"); ++} ++ ++static int baikal_clk_is_enabled(struct clk_hw *hw) ++{ ++ struct arm_smccc_res res; ++ struct baikal_clk_cmu *pclk = to_baikal_cmu(hw); ++ uint32_t cmd; ++ ++ if (pclk->is_clk_ch) { ++ cmd = CMU_CLK_CH_IS_ENABLED; ++ } else { ++ cmd = CMU_PLL_IS_ENABLED; ++ } ++ ++ /* If clock valid */ ++ arm_smccc_smc(BAIKAL_SMC_LCRU_ID, pclk->cmu_id, cmd, 0, ++ pclk->parent, 0, 0, 0, &res); ++ ++ pr_debug("%s(%s, %s@0x%x): %s\n", ++ __func__, ++ pclk->name, ++ pclk->is_clk_ch ? "clkch" : "pll", ++ pclk->cmu_id, ++ res.a0 ? "true" : "false"); ++ ++ return res.a0; ++} ++ ++static unsigned long baikal_clk_recalc_rate(struct clk_hw *hw, ++ unsigned long parent_rate) ++{ ++ struct arm_smccc_res res; ++ struct baikal_clk_cmu *pclk = to_baikal_cmu(hw); ++ uint32_t cmd; ++ unsigned long parent; ++ ++ if (pclk->is_clk_ch) { ++ cmd = CMU_CLK_CH_GET_RATE; ++ parent = pclk->parent; ++ } else { ++ cmd = CMU_PLL_GET_RATE; ++ parent= parent_rate; ++ } ++ ++ /* If clock valid */ ++ arm_smccc_smc(BAIKAL_SMC_LCRU_ID, pclk->cmu_id, cmd, 0, ++ parent, 0, 0, 0, &res); ++ ++ pr_debug("%s(%s, %s@0x%x): %ld Hz\n", ++ __func__, ++ pclk->name, ++ pclk->is_clk_ch ? "clkch" : "pll", ++ pclk->cmu_id, ++ res.a0); ++ ++ /* Return actual freq */ ++ return res.a0; ++} ++ ++static int baikal_clk_set_rate(struct clk_hw *hw, unsigned long rate, ++ unsigned long parent_rate) ++{ ++ struct arm_smccc_res res; ++ struct baikal_clk_cmu *pclk = to_baikal_cmu(hw); ++ uint32_t cmd; ++ unsigned long parent; ++ ++ if (pclk->is_clk_ch) { ++ cmd = CMU_CLK_CH_SET_RATE; ++ parent = pclk->parent; ++ } else { ++ cmd = CMU_PLL_SET_RATE; ++ parent = parent_rate; ++ } ++ ++ arm_smccc_smc(BAIKAL_SMC_LCRU_ID, pclk->cmu_id, cmd, rate, ++ parent, 0, 0, 0, &res); ++ ++ pr_debug("%s(%s, %s@0x%x, %ld Hz): %s\n", ++ __func__, ++ pclk->name, ++ pclk->is_clk_ch ? "clkch" : "pll", ++ pclk->cmu_id, ++ rate, ++ res.a0 ? "error" : "ok"); ++ ++ return res.a0; ++} ++ ++static long baikal_clk_round_rate(struct clk_hw *hw, unsigned long rate, ++ unsigned long *prate) ++{ ++ struct arm_smccc_res res; ++ struct baikal_clk_cmu *pclk = to_baikal_cmu(hw); ++ unsigned long parent; ++ uint32_t cmd; ++ ++ if (pclk->is_clk_ch) { ++ cmd = CMU_CLK_CH_ROUND_RATE; ++ parent = pclk->parent; ++ } else { ++ cmd = CMU_PLL_ROUND_RATE; ++ parent = *prate; ++ } ++ ++ /* If clock valid */ ++ arm_smccc_smc(BAIKAL_SMC_LCRU_ID, pclk->cmu_id, cmd, rate, ++ parent, 0, 0, 0, &res); ++ ++ pr_debug("%s(%s, %s@0x%x): %ld Hz\n", ++ __func__, ++ pclk->name, ++ pclk->is_clk_ch ? "clkch" : "pll", ++ pclk->cmu_id, ++ res.a0); ++ ++ /* Return actual freq */ ++ return res.a0; ++} ++ ++static const struct clk_ops be_clk_pll_ops = { ++ .enable = baikal_clk_enable, ++ .disable = baikal_clk_disable, ++ .is_enabled = baikal_clk_is_enabled, ++ .recalc_rate = baikal_clk_recalc_rate, ++ .set_rate = baikal_clk_set_rate, ++ .round_rate = baikal_clk_round_rate ++}; ++ ++static int __init baikal_clk_probe(struct device_node *node) ++{ ++ struct clk_init_data init; ++ struct clk_init_data *init_ch; ++ struct baikal_clk_cmu *cmu; ++ struct baikal_clk_cmu **cmu_ch; ++ ++ struct clk *clk; ++ struct clk_onecell_data *clk_ch; ++ ++ int number, i = 0; ++ u32 rc, index; ++ struct property *prop; ++ const __be32 *p; ++ const char *clk_ch_name; ++ const char *parent_name; ++ ++ cmu = kzalloc(sizeof(struct baikal_clk_cmu), GFP_KERNEL); ++ if (!cmu) { ++ pr_err("%s: could not allocate CMU clk\n", __func__); ++ return -ENOMEM; ++ } ++ ++ of_property_read_string(node, "clock-output-names", &cmu->name); ++ of_property_read_u32(node, "clock-frequency", &cmu->parent); ++ of_property_read_u32(node, "cmu-id", &cmu->cmu_id); ++ ++ parent_name = of_clk_get_parent_name(node, 0); ++ ++ /* Setup clock init structure */ ++ init.parent_names = &parent_name; ++ init.num_parents = 1; ++ init.name = cmu->name; ++ init.ops = &be_clk_pll_ops; ++ init.flags = CLK_IGNORE_UNUSED; ++ ++ cmu->hw.init = &init; ++ cmu->is_clk_ch = 0; ++ ++ /* Register the clock */ ++ pr_debug("%s: add %s, parent %s\n", __func__, cmu->name, parent_name ? parent_name : "null"); ++ clk = clk_register(NULL, &cmu->hw); ++ ++ if (IS_ERR(clk)) { ++ pr_err("%s: could not register clk %s\n", __func__, cmu->name); ++ return -ENOMEM; ++ } ++ ++ /* Register the clock for lookup */ ++ rc = clk_register_clkdev(clk, cmu->name, NULL); ++ if (rc != 0) { ++ pr_err("%s: could not register lookup clk %s\n", ++ __func__, cmu->name); ++ } ++ ++ /* FIXME We probably SHOULDN'T enable it here */ ++ clk_prepare_enable(clk); ++ ++ number = of_property_count_u32_elems(node, "clock-indices"); ++ ++ if (number > 0) { ++ clk_ch = kmalloc(sizeof(struct clk_onecell_data), GFP_KERNEL); ++ if (!clk_ch) { ++ pr_err("%s: could not allocate CMU clk channel\n", __func__); ++ return -ENOMEM; ++ } ++ ++ /* Get the last index to find out max number of children*/ ++ of_property_for_each_u32(node, "clock-indices", prop, p, index) { ++ ; ++ } ++ ++ clk_ch->clks = kcalloc(index + 1, sizeof(struct clk *), GFP_KERNEL); ++ clk_ch->clk_num = index + 1; ++ cmu_ch = kcalloc((index + 1), sizeof(struct baikal_clk_cmu *), GFP_KERNEL); ++ if (!cmu_ch) { ++ kfree(clk_ch); ++ return -ENOMEM; ++ } ++ init_ch = kcalloc((number + 1), sizeof(struct clk_init_data), GFP_KERNEL); ++ if (!init_ch) { ++ pr_err("%s: could not allocate CMU init structure \n", __func__); ++ kfree(cmu_ch); ++ kfree(clk_ch); ++ return -ENOMEM; ++ } ++ ++ of_property_for_each_u32(node, "clock-indices", prop, p, index) { ++ of_property_read_string_index(node, "clock-names", ++ i, &clk_ch_name); ++ pr_info("%s: clkch <%s>, index %d, i %d\n", __func__, clk_ch_name, index, i); ++ init_ch[i].parent_names = &cmu->name; ++ init_ch[i].num_parents = 1; ++ init_ch[i].name = clk_ch_name; ++ init_ch[i].ops = &be_clk_pll_ops; ++ init_ch[i].flags = CLK_IGNORE_UNUSED; ++ ++ cmu_ch[index] = kzalloc(sizeof(struct baikal_clk_cmu), GFP_KERNEL); ++ if (!cmu_ch[index]) { ++ pr_err("%s: could not allocate baikal_clk_cmu structure\n", __func__); ++ return -ENOMEM; ++ } ++ cmu_ch[index]->name = clk_ch_name; ++ cmu_ch[index]->cmu_id = index; ++ cmu_ch[index]->parent = cmu->cmu_id; ++ cmu_ch[index]->is_clk_ch = 1; ++ cmu_ch[index]->hw.init = &init_ch[i]; ++ clk_ch->clks[index] = clk_register(NULL, &cmu_ch[index]->hw); ++ ++ if (IS_ERR(clk_ch->clks[index])) { ++ pr_err("%s: could not register clk %s\n", __func__, clk_ch_name); ++ } ++ ++ /* Register the clock for lookup */ ++ rc = clk_register_clkdev(clk_ch->clks[index], clk_ch_name, NULL); ++ if (rc != 0) { ++ pr_err("%s: could not register lookup clk %s\n", ++ __func__, clk_ch_name); ++ } ++ ++ /* FIXME We probably SHOULDN'T enable it here */ ++ clk_prepare_enable(clk_ch->clks[index]); ++ i++; ++ } ++ ++ return of_clk_add_provider(node, of_clk_src_onecell_get, clk_ch); ++ } ++ ++ return of_clk_add_provider(node, of_clk_src_simple_get, clk); ++} ++ ++static void __init baikal_clk_init(struct device_node *np) ++{ ++ int err; ++ err = baikal_clk_probe(np); ++ if (err) { ++ panic("%s: failed to probe clock %pOF: %d\n", __func__, np, err); ++ } else { ++ pr_info("%s: successfully probed %pOF\n", __func__, np); ++ } ++} ++CLK_OF_DECLARE_DRIVER(baikal_cmu, "baikal,cmu", baikal_clk_init); +diff --git a/drivers/cpufreq/cpufreq-dt-platdev.c b/drivers/cpufreq/cpufreq-dt-platdev.c +index ca1d103ec449..29b14e8d7b6b 100644 +--- a/drivers/cpufreq/cpufreq-dt-platdev.c ++++ b/drivers/cpufreq/cpufreq-dt-platdev.c +@@ -105,6 +105,8 @@ static const struct of_device_id blocklist[] __initconst = { + + { .compatible = "arm,vexpress", }, + ++ { .compatible = "baikal,baikal-m", }, ++ + { .compatible = "calxeda,highbank", }, + { .compatible = "calxeda,ecx-2000", }, + +diff --git a/drivers/firmware/efi/libstub/arm64-stub.c b/drivers/firmware/efi/libstub/arm64-stub.c +index 2363fee9211c..6bcc155c7d1c 100644 +--- a/drivers/firmware/efi/libstub/arm64-stub.c ++++ b/drivers/firmware/efi/libstub/arm64-stub.c +@@ -11,6 +11,7 @@ + #include + #include + #include ++#include + #include + + #include "efistub.h" +@@ -34,6 +35,31 @@ efi_status_t check_platform_features(void) + return EFI_SUCCESS; + } + ++static const char* machines_need_low_alloc[] = { ++ "baikal,baikal-m", ++}; ++ ++static bool need_low_alloc(void) { ++ size_t i; ++ const void *fdt; ++ const char *match; ++ ++ fdt = get_efi_config_table(DEVICE_TREE_GUID); ++ if (!fdt) { ++ efi_info("failed to retrive FDT from EFI\n"); ++ return false; ++ } ++ ++ for (i = 0; i < ARRAY_SIZE(machines_need_low_alloc); i++) { ++ match = machines_need_low_alloc[i]; ++ if (fdt_node_check_compatible(fdt, 0, match) == 0) { ++ efi_info("machine %s: forcing kernel relocation to low address\n", match); ++ return true; ++ } ++ } ++ return false; ++} ++ + /* + * Distro versions of GRUB may ignore the BSS allocation entirely (i.e., fail + * to provide space, and fail to zero it). Check for this condition by double +@@ -79,6 +105,19 @@ static bool check_image_region(u64 base, u64 size) + return ret; + } + ++static inline efi_status_t efi_low_alloc(unsigned long size, unsigned long align, ++ unsigned long *addr) ++{ ++ /* ++ * Don't allocate at 0x0. It will confuse code that ++ * checks pointers against NULL. Skip the first 8 ++ * bytes so we start at a nice even number. ++ */ ++ return efi_low_alloc_above(size, align, addr, 0x8); ++} ++ ++ ++ + efi_status_t handle_kernel_image(unsigned long *image_addr, + unsigned long *image_size, + unsigned long *reserve_addr, +@@ -99,6 +138,14 @@ efi_status_t handle_kernel_image(unsigned long *image_addr, + */ + u64 min_kimg_align = efi_nokaslr ? MIN_KIMG_ALIGN : EFI_KIMG_ALIGN; + ++ bool force_low_reloc = need_low_alloc(); ++ if (force_low_reloc) { ++ if (!efi_nokaslr) { ++ efi_info("booting on a broken firmware, KASLR will be disabled\n"); ++ efi_nokaslr = true; ++ } ++ } ++ + if (IS_ENABLED(CONFIG_RANDOMIZE_BASE)) { + if (!efi_nokaslr) { + status = efi_get_random_bytes(sizeof(phys_seed), +@@ -112,7 +159,8 @@ efi_status_t handle_kernel_image(unsigned long *image_addr, + efi_nokaslr = true; + } + } else { +- efi_info("KASLR disabled on kernel command line\n"); ++ if (!force_low_reloc) ++ efi_info("KASLR disabled on kernel command line\n"); + } + } + +@@ -140,6 +188,15 @@ efi_status_t handle_kernel_image(unsigned long *image_addr, + status = EFI_OUT_OF_RESOURCES; + } + ++ if (force_low_reloc) { ++ status = efi_low_alloc(*reserve_size, ++ min_kimg_align, ++ reserve_addr); ++ if (status != EFI_SUCCESS) { ++ efi_err("Failed to relocate kernel, expect secondary CPUs boot failure\n"); ++ } ++ } ++ + if (status != EFI_SUCCESS) { + if (!check_image_region((u64)_text, kernel_memsize)) { + efi_err("FIRMWARE BUG: Image BSS overlaps adjacent EFI memory region\n"); +@@ -164,6 +221,9 @@ efi_status_t handle_kernel_image(unsigned long *image_addr, + } + + *image_addr = *reserve_addr; ++ if (efi_nokaslr) { ++ efi_info("relocating kernel to 0x%lx\n", *image_addr); ++ } + memcpy((void *)*image_addr, _text, kernel_size); + + return EFI_SUCCESS; +diff --git a/drivers/gpu/drm/Kconfig b/drivers/gpu/drm/Kconfig +index cea777ae7fb9..bb77bf9b642d 100644 +--- a/drivers/gpu/drm/Kconfig ++++ b/drivers/gpu/drm/Kconfig +@@ -222,6 +222,7 @@ config DRM_SCHED + source "drivers/gpu/drm/i2c/Kconfig" + + source "drivers/gpu/drm/arm/Kconfig" ++source "drivers/gpu/drm/baikal/Kconfig" + + config DRM_RADEON + tristate "ATI Radeon" +diff --git a/drivers/gpu/drm/Makefile b/drivers/gpu/drm/Makefile +index ad1112154898..964d306ea7b8 100644 +--- a/drivers/gpu/drm/Makefile ++++ b/drivers/gpu/drm/Makefile +@@ -128,3 +128,4 @@ obj-$(CONFIG_DRM_TIDSS) += tidss/ + obj-y += xlnx/ + obj-y += gud/ + obj-$(CONFIG_DRM_HYPERV) += hyperv/ ++obj-$(CONFIG_DRM_BAIKAL_VDU) += baikal/ +diff --git a/drivers/gpu/drm/baikal/Kconfig b/drivers/gpu/drm/baikal/Kconfig +new file mode 100644 +index 000000000000..7f3661ae5578 +--- /dev/null ++++ b/drivers/gpu/drm/baikal/Kconfig +@@ -0,0 +1,15 @@ ++config DRM_BAIKAL_VDU ++ tristate "DRM Support for Baikal-M VDU" ++ depends on DRM ++ depends on ARM || ARM64 || COMPILE_TEST ++ depends on COMMON_CLK ++ default y if ARCH_BAIKAL ++ select DRM_KMS_HELPER ++ select DRM_KMS_CMA_HELPER ++ select DRM_GEM_CMA_HELPER ++ select DRM_PANEL ++ select DRM_BAIKAL_HDMI ++ select VT_HW_CONSOLE_BINDING if FRAMEBUFFER_CONSOLE ++ help ++ Choose this option for DRM support for the Baikal-M Video Display Unit (VDU). ++ If M is selected the module will be called baikal_vdu_drm. +diff --git a/drivers/gpu/drm/baikal/Makefile b/drivers/gpu/drm/baikal/Makefile +new file mode 100644 +index 000000000000..eb029494e823 +--- /dev/null ++++ b/drivers/gpu/drm/baikal/Makefile +@@ -0,0 +1,10 @@ ++# SPDX-License-Identifier: GPL-2.0 ++baikal_vdu_drm-y += baikal_vdu_connector.o \ ++ baikal_vdu_crtc.o \ ++ baikal_vdu_drv.o \ ++ baikal_vdu_plane.o ++ ++baikal_vdu_drm-$(CONFIG_DEBUG_FS) += baikal_vdu_debugfs.o ++ ++obj-$(CONFIG_DRM_BAIKAL_VDU) += baikal_vdu_drm.o ++obj-$(CONFIG_DRM_BAIKAL_HDMI) += baikal-hdmi.o +diff --git a/drivers/gpu/drm/baikal/baikal-hdmi.c b/drivers/gpu/drm/baikal/baikal-hdmi.c +new file mode 100644 +index 000000000000..6a55d03d93f8 +--- /dev/null ++++ b/drivers/gpu/drm/baikal/baikal-hdmi.c +@@ -0,0 +1,119 @@ ++/* SPDX-License-Identifier: GPL-2.0 */ ++/* ++ * Baikal Electronics BE-M1000 DesignWare HDMI 2.0 Tx PHY support driver ++ * ++ * Copyright (C) 2019-2021 Baikal Electronics JSC ++ * ++ * Author: Pavel Parkhomenko ++ * ++ * Parts of this file were based on sources as follows: ++ * ++ * Copyright (C) 2016 Renesas Electronics Corporation ++ * ++ * Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com) ++ */ ++ ++#include ++#include ++#include ++ ++#include ++ ++int fixed_clock = 0; ++int max_clock = 0; ++ ++static const struct dw_hdmi_mpll_config baikal_hdmi_mpll_cfg[] = { ++ /* pixelclk opmode gmp */ ++ { 44900000, { { 0x00b3, 0x0000 }, }, }, ++ { 90000000, { { 0x0072, 0x0001 }, }, }, ++ { 182750000, { { 0x0051, 0x0002 }, }, }, ++ { 340000000, { { 0x0040, 0x0003 }, }, }, ++ { 594000000, { { 0x1a40, 0x0003 }, }, }, ++ { ~0UL, { { 0x0000, 0x0000 }, }, } ++}; ++ ++static const struct dw_hdmi_curr_ctrl baikal_hdmi_cur_ctr[] = { ++ /* pixelclk current */ ++ { 44900000, { 0x0000, }, }, ++ { 90000000, { 0x0008, }, }, ++ { 182750000, { 0x001b, }, }, ++ { 340000000, { 0x0036, }, }, ++ { 594000000, { 0x003f, }, }, ++ { ~0UL, { 0x0000, }, } ++}; ++ ++static const struct dw_hdmi_phy_config baikal_hdmi_phy_cfg[] = { ++ /* pixelclk symbol term vlev */ ++ { 148250000, 0x8009, 0x0004, 0x0232}, ++ { 218250000, 0x8009, 0x0004, 0x0230}, ++ { 288000000, 0x8009, 0x0004, 0x0273}, ++ { 340000000, 0x8029, 0x0004, 0x0273}, ++ { 594000000, 0x8039, 0x0004, 0x014a}, ++ { ~0UL, 0x0000, 0x0000, 0x0000} ++}; ++ ++static enum drm_mode_status baikal_hdmi_mode_valid(struct dw_hdmi *hdmi, ++ void *data, ++ const struct drm_display_info *info, ++ const struct drm_display_mode *mode) ++{ ++ if (mode->clock < 13500) ++ return MODE_CLOCK_LOW; ++ if (mode->clock >= 340000) ++ return MODE_CLOCK_HIGH; ++ if (fixed_clock && mode->clock != fixed_clock) ++ return MODE_BAD; ++ if (max_clock && mode->clock > max_clock) ++ return MODE_BAD; ++ ++ return MODE_OK; ++} ++ ++static struct dw_hdmi_plat_data baikal_dw_hdmi_plat_data = { ++ .mpll_cfg = baikal_hdmi_mpll_cfg, ++ .cur_ctr = baikal_hdmi_cur_ctr, ++ .phy_config = baikal_hdmi_phy_cfg, ++ .mode_valid = baikal_hdmi_mode_valid, ++}; ++ ++static int baikal_dw_hdmi_probe(struct platform_device *pdev) ++{ ++ struct dw_hdmi *hdmi; ++ hdmi = dw_hdmi_probe(pdev, &baikal_dw_hdmi_plat_data); ++ if (IS_ERR(hdmi)) { ++ return PTR_ERR(hdmi); ++ } else { ++ return 0; ++ } ++} ++ ++static int baikal_dw_hdmi_remove(struct platform_device *pdev) ++{ ++ struct dw_hdmi *hdmi = platform_get_drvdata(pdev); ++ dw_hdmi_remove(hdmi); ++ return 0; ++} ++ ++static const struct of_device_id baikal_dw_hdmi_of_table[] = { ++ { .compatible = "baikal,hdmi" }, ++ { /* Sentinel */ }, ++}; ++MODULE_DEVICE_TABLE(of, baikal_dw_hdmi_of_table); ++ ++static struct platform_driver baikal_dw_hdmi_platform_driver = { ++ .probe = baikal_dw_hdmi_probe, ++ .remove = baikal_dw_hdmi_remove, ++ .driver = { ++ .name = "baikal-dw-hdmi", ++ .of_match_table = baikal_dw_hdmi_of_table, ++ }, ++}; ++ ++module_param(fixed_clock, int, 0644); ++module_param(max_clock, int, 0644); ++ ++module_platform_driver(baikal_dw_hdmi_platform_driver); ++ ++MODULE_AUTHOR("Pavel Parkhomenko "); ++MODULE_DESCRIPTION("Baikal BE-M1000 SoC DesignWare HDMI 2.0 Tx + Gen2 PHY Driver"); ++MODULE_LICENSE("GPL"); +diff --git a/drivers/gpu/drm/baikal/baikal_vdu_connector.c b/drivers/gpu/drm/baikal/baikal_vdu_connector.c +new file mode 100644 +index 000000000000..2f20cf3da627 +--- /dev/null ++++ b/drivers/gpu/drm/baikal/baikal_vdu_connector.c +@@ -0,0 +1,118 @@ ++/* ++ * Copyright (C) 2019-2020 Baikal Electronics JSC ++ * ++ * Author: Pavel Parkhomenko ++ * ++ * Parts of this file were based on sources as follows: ++ * ++ * Copyright (c) 2006-2008 Intel Corporation ++ * Copyright (c) 2007 Dave Airlie ++ * Copyright (C) 2011 Texas Instruments ++ * (C) COPYRIGHT 2012-2013 ARM Limited. All rights reserved. ++ * ++ * This program is free software and is provided to you under the terms of the ++ * GNU General Public License version 2 as published by the Free Software ++ * Foundation, and any use by you of this program is subject to the terms of ++ * such GNU licence. ++ * ++ */ ++ ++/** ++ * baikal_vdu_connector.c ++ * Implementation of the connector functions for Baikal Electronics BE-M1000 SoC's VDU ++ */ ++#include ++#include ++#include ++ ++#include ++#include ++#include ++#include ++#include ++ ++#include "baikal_vdu_drm.h" ++#include "baikal_vdu_regs.h" ++ ++#define to_baikal_vdu_private(x) \ ++ container_of(x, struct baikal_vdu_private, connector) ++ ++static void baikal_vdu_drm_connector_destroy(struct drm_connector *connector) ++{ ++ drm_connector_unregister(connector); ++ drm_connector_cleanup(connector); ++} ++ ++static enum drm_connector_status baikal_vdu_drm_connector_detect( ++ struct drm_connector *connector, bool force) ++{ ++ struct baikal_vdu_private *priv = to_baikal_vdu_private(connector); ++ ++ return (priv->panel ? ++ connector_status_connected : ++ connector_status_disconnected); ++} ++ ++static int baikal_vdu_drm_connector_helper_get_modes( ++ struct drm_connector *connector) ++{ ++ struct baikal_vdu_private *priv = to_baikal_vdu_private(connector); ++ ++ if (!priv->panel) ++ return 0; ++ ++ return drm_panel_get_modes(priv->panel, connector); ++} ++ ++const struct drm_connector_funcs connector_funcs = { ++ .fill_modes = drm_helper_probe_single_connector_modes, ++ .destroy = baikal_vdu_drm_connector_destroy, ++ .detect = baikal_vdu_drm_connector_detect, ++ .reset = drm_atomic_helper_connector_reset, ++ .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state, ++ .atomic_destroy_state = drm_atomic_helper_connector_destroy_state, ++}; ++ ++const struct drm_connector_helper_funcs connector_helper_funcs = { ++ .get_modes = baikal_vdu_drm_connector_helper_get_modes, ++}; ++ ++static const struct drm_encoder_funcs encoder_funcs = { ++ .destroy = drm_encoder_cleanup, ++}; ++ ++int baikal_vdu_lvds_connector_create(struct drm_device *dev) ++{ ++ struct baikal_vdu_private *priv = dev->dev_private; ++ struct drm_connector *connector = &priv->connector; ++ struct drm_encoder *encoder = &priv->encoder; ++ int ret = 0; ++ ++ ret = drm_connector_init(dev, connector, &connector_funcs, ++ DRM_MODE_CONNECTOR_LVDS); ++ if (ret) { ++ dev_err(dev->dev, "drm_connector_init failed: %d\n", ret); ++ goto out; ++ } ++ drm_connector_helper_add(connector, &connector_helper_funcs); ++ ret = drm_encoder_init(dev, encoder, &encoder_funcs, ++ DRM_MODE_ENCODER_LVDS, NULL); ++ if (ret) { ++ dev_err(dev->dev, "drm_encoder_init failed: %d\n", ret); ++ goto out; ++ } ++ encoder->crtc = &priv->crtc; ++ encoder->possible_crtcs = drm_crtc_mask(encoder->crtc); ++ ret = drm_connector_attach_encoder(connector, encoder); ++ if (ret) { ++ dev_err(dev->dev, "drm_connector_attach_encoder failed: %d\n", ret); ++ goto out; ++ } ++ ret = drm_connector_register(connector); ++ if (ret) { ++ dev_err(dev->dev, "drm_connector_register failed: %d\n", ret); ++ goto out; ++ } ++out: ++ return ret; ++} +diff --git a/drivers/gpu/drm/baikal/baikal_vdu_crtc.c b/drivers/gpu/drm/baikal/baikal_vdu_crtc.c +new file mode 100644 +index 000000000000..039150c593e9 +--- /dev/null ++++ b/drivers/gpu/drm/baikal/baikal_vdu_crtc.c +@@ -0,0 +1,337 @@ ++/* ++ * Copyright (C) 2019-2020 Baikal Electronics JSC ++ * ++ * Author: Pavel Parkhomenko ++ * ++ * Parts of this file were based on sources as follows: ++ * ++ * Copyright (c) 2006-2008 Intel Corporation ++ * Copyright (c) 2007 Dave Airlie ++ * Copyright (C) 2011 Texas Instruments ++ * (C) COPYRIGHT 2012-2013 ARM Limited. All rights reserved. ++ * ++ * This program is free software and is provided to you under the terms of the ++ * GNU General Public License version 2 as published by the Free Software ++ * Foundation, and any use by you of this program is subject to the terms of ++ * such GNU licence. ++ * ++ */ ++ ++/** ++ * baikal_vdu_crtc.c ++ * Implementation of the CRTC functions for Baikal Electronics BE-M1000 VDU driver ++ */ ++#include ++#include ++#include ++#include ++ ++#include ++#include ++#include ++#include ++ ++#include "baikal_vdu_drm.h" ++#include "baikal_vdu_regs.h" ++ ++struct baikal_vdu_crtc_mode_fixup { ++ int vdisplay; ++ int vfp_add; ++}; ++ ++static const struct baikal_vdu_crtc_mode_fixup mode_fixups[] = { ++ { 480, 38 }, ++ { 600, 8 }, ++ { 720, 43 }, ++ { 768, 43 }, ++ { 800, 71 }, ++ { 864, 71 }, ++ { 900, 71 }, ++ { 960, 71 }, ++ { 1024, 25 }, ++ { 1050, 25 }, ++ { 1080, 8 }, ++ { 1200, 32 }, ++ { 1440, 27 }, ++ { ~0U }, ++}; ++ ++irqreturn_t baikal_vdu_irq(int irq, void *data) ++{ ++ struct drm_device *drm = data; ++ struct baikal_vdu_private *priv = drm->dev_private; ++ irqreturn_t status = IRQ_NONE; ++ u32 raw_stat; ++ u32 irq_stat; ++ ++ irq_stat = readl(priv->regs + IVR); ++ raw_stat = readl(priv->regs + ISR); ++ ++ if (irq_stat & INTR_VCT) { ++ priv->counters[10]++; ++ drm_crtc_handle_vblank(&priv->crtc); ++ status = IRQ_HANDLED; ++ } ++ ++ if (irq_stat & INTR_FER) { ++ priv->counters[11]++; ++ priv->counters[12] = readl(priv->regs + DBAR); ++ priv->counters[13] = readl(priv->regs + DCAR); ++ priv->counters[14] = readl(priv->regs + MRR); ++ status = IRQ_HANDLED; ++ } ++ ++ priv->counters[3] |= raw_stat; ++ ++ /* Clear all interrupts */ ++ writel(irq_stat, priv->regs + ISR); ++ ++ return status; ++} ++ ++bool baikal_vdu_crtc_mode_fixup(struct drm_crtc *crtc, ++ const struct drm_display_mode *mode, ++ struct drm_display_mode *adjusted_mode) ++{ ++ struct baikal_vdu_private *priv = crtc->dev->dev_private; ++ ++ memcpy(adjusted_mode, mode, sizeof(*mode)); ++ ++ if (!priv->mode_fixup) ++ return true; ++ ++ if (priv->mode_fixup == -1) { ++ const struct baikal_vdu_crtc_mode_fixup *fixups = mode_fixups; ++ for (; fixups && fixups->vdisplay != ~0U; ++fixups) { ++ if (mode->vdisplay <= fixups->vdisplay) ++ break; ++ } ++ if (fixups->vdisplay == ~0U) ++ return true; ++ else ++ priv->mode_fixup = fixups->vfp_add; ++ } ++ ++ adjusted_mode->vtotal += priv->mode_fixup; ++ adjusted_mode->vsync_start += priv->mode_fixup; ++ adjusted_mode->vsync_end += priv->mode_fixup; ++ adjusted_mode->clock = mode->clock * adjusted_mode->vtotal / mode->vtotal; ++ ++ return true; ++} ++ ++static void baikal_vdu_crtc_helper_mode_set_nofb(struct drm_crtc *crtc) ++{ ++ struct drm_device *dev = crtc->dev; ++ struct baikal_vdu_private *priv = dev->dev_private; ++ const struct drm_display_mode *orig_mode = &crtc->state->mode; ++ const struct drm_display_mode *mode = &crtc->state->adjusted_mode; ++ unsigned int ppl, hsw, hfp, hbp; ++ unsigned int lpp, vsw, vfp, vbp; ++ unsigned int reg; ++ ++ drm_mode_debug_printmodeline(orig_mode); ++ drm_mode_debug_printmodeline(mode); ++ ++ ppl = mode->hdisplay / 16; ++ if (priv->panel) { ++ hsw = mode->hsync_end - mode->hsync_start; ++ hfp = mode->hsync_start - mode->hdisplay - 1; ++ } else { ++ hsw = mode->hsync_end - mode->hsync_start - 1; ++ hfp = mode->hsync_start - mode->hdisplay; ++ } ++ hbp = mode->htotal - mode->hsync_end; ++ ++ lpp = mode->vdisplay; ++ vsw = mode->vsync_end - mode->vsync_start; ++ vfp = mode->vsync_start - mode->vdisplay; ++ vbp = mode->vtotal - mode->vsync_end; ++ ++ writel((HTR_HFP(hfp) & HTR_HFP_MASK) | ++ (HTR_PPL(ppl) & HTR_PPL_MASK) | ++ (HTR_HBP(hbp) & HTR_HBP_MASK) | ++ (HTR_HSW(hsw) & HTR_HSW_MASK), ++ priv->regs + HTR); ++ ++ if (mode->hdisplay > 4080 || ppl * 16 != mode->hdisplay) ++ writel((HPPLOR_HPPLO(mode->hdisplay) & HPPLOR_HPPLO_MASK) | HPPLOR_HPOE, ++ priv->regs + HPPLOR); ++ ++ writel((VTR1_VSW(vsw) & VTR1_VSW_MASK) | ++ (VTR1_VFP(vfp) & VTR1_VFP_MASK) | ++ (VTR1_VBP(vbp) & VTR1_VBP_MASK), ++ priv->regs + VTR1); ++ ++ writel(lpp & VTR2_LPP_MASK, priv->regs + VTR2); ++ ++ writel((HVTER_VSWE(vsw >> VTR1_VSW_LSB_WIDTH) & HVTER_VSWE_MASK) | ++ (HVTER_HSWE(hsw >> HTR_HSW_LSB_WIDTH) & HVTER_HSWE_MASK) | ++ (HVTER_VBPE(vbp >> VTR1_VBP_LSB_WIDTH) & HVTER_VBPE_MASK) | ++ (HVTER_VFPE(vfp >> VTR1_VFP_LSB_WIDTH) & HVTER_VFPE_MASK) | ++ (HVTER_HBPE(hbp >> HTR_HBP_LSB_WIDTH) & HVTER_HBPE_MASK) | ++ (HVTER_HFPE(hfp >> HTR_HFP_LSB_WIDTH) & HVTER_HFPE_MASK), ++ priv->regs + HVTER); ++ ++ /* Set polarities */ ++ reg = readl(priv->regs + CR1); ++ if (mode->flags & DRM_MODE_FLAG_NHSYNC) ++ reg |= CR1_VSP; ++ else ++ reg &= ~CR1_VSP; ++ if (mode->flags & DRM_MODE_FLAG_NVSYNC) ++ reg |= CR1_HSP; ++ else ++ reg &= ~CR1_HSP; ++ reg |= CR1_DEP; // set DE to active high; ++ writel(reg, priv->regs + CR1); ++ ++ crtc->hwmode = crtc->state->adjusted_mode; ++} ++ ++static void baikal_vdu_crtc_helper_enable(struct drm_crtc *crtc, ++ struct drm_atomic_state *state) ++{ ++ struct baikal_vdu_private *priv = crtc->dev->dev_private; ++ struct drm_panel *panel = priv->panel; ++ struct device_node *panel_node; ++ const char *data_mapping; ++ u32 cntl, gpio; ++ ++ DRM_DEV_DEBUG_DRIVER(crtc->dev->dev, "enabling pixel clock\n"); ++ clk_prepare_enable(priv->clk); ++ ++ drm_panel_prepare(panel); ++ ++ writel(ISCR_VSC_VFP, priv->regs + ISCR); ++ ++ /* release clock reset; enable clocking */ ++ cntl = readl(priv->regs + PCTR); ++ cntl |= PCTR_PCR + PCTR_PCI; ++ writel(cntl, priv->regs + PCTR); ++ ++ /* Set 16-word input FIFO watermark */ ++ /* Enable and Power Up */ ++ cntl = readl(priv->regs + CR1); ++ cntl &= ~CR1_FDW_MASK; ++ cntl |= CR1_LCE + CR1_FDW_16_WORDS; ++ ++ if (priv->type == VDU_TYPE_LVDS) { ++ panel_node = panel->dev->of_node; ++ if (of_property_read_string(panel_node, "data-mapping", &data_mapping)) { ++ cntl |= CR1_OPS_LCD18; ++ } else if (strncmp(data_mapping, "vesa-24", 7)) ++ cntl |= CR1_OPS_LCD24; ++ else if (strncmp(data_mapping, "jeida-18", 8)) ++ cntl |= CR1_OPS_LCD18; ++ else { ++ dev_warn(crtc->dev->dev, "%s data mapping is not supported, vesa-24 is set\n", data_mapping); ++ cntl |= CR1_OPS_LCD24; ++ } ++ gpio = GPIOR_UHD_ENB; ++ if (priv->ep_count == 4) ++ gpio |= GPIOR_UHD_QUAD_PORT; ++ else if (priv->ep_count == 2) ++ gpio |= GPIOR_UHD_DUAL_PORT; ++ else ++ gpio |= GPIOR_UHD_SNGL_PORT; ++ writel(gpio, priv->regs + GPIOR); ++ } else ++ cntl |= CR1_OPS_LCD24; ++ writel(cntl, priv->regs + CR1); ++ ++ drm_panel_enable(priv->panel); ++ drm_crtc_vblank_on(crtc); ++} ++ ++void baikal_vdu_crtc_helper_disable(struct drm_crtc *crtc) ++{ ++ struct baikal_vdu_private *priv = crtc->dev->dev_private; ++ ++ drm_crtc_vblank_off(crtc); ++ drm_panel_disable(priv->panel); ++ ++ drm_panel_unprepare(priv->panel); ++ ++ /* Disable clock */ ++ DRM_DEV_DEBUG_DRIVER(crtc->dev->dev, "disabling pixel clock\n"); ++ clk_disable_unprepare(priv->clk); ++} ++ ++static void baikal_vdu_crtc_helper_atomic_flush(struct drm_crtc *crtc, ++ struct drm_atomic_state *state) ++{ ++ struct drm_pending_vblank_event *event = crtc->state->event; ++ ++ if (event) { ++ crtc->state->event = NULL; ++ ++ spin_lock_irq(&crtc->dev->event_lock); ++ if (crtc->state->active && drm_crtc_vblank_get(crtc) == 0) ++ drm_crtc_arm_vblank_event(crtc, event); ++ else ++ drm_crtc_send_vblank_event(crtc, event); ++ spin_unlock_irq(&crtc->dev->event_lock); ++ } ++} ++ ++static int baikal_vdu_enable_vblank(struct drm_crtc *crtc) ++{ ++ struct baikal_vdu_private *priv = crtc->dev->dev_private; ++ ++ /* clear interrupt status */ ++ writel(0x3ffff, priv->regs + ISR); ++ ++ writel(INTR_VCT + INTR_FER, priv->regs + IMR); ++ ++ return 0; ++} ++ ++static void baikal_vdu_disable_vblank(struct drm_crtc *crtc) ++{ ++ struct baikal_vdu_private *priv = crtc->dev->dev_private; ++ ++ /* clear interrupt status */ ++ writel(0x3ffff, priv->regs + ISR); ++ ++ writel(INTR_FER, priv->regs + IMR); ++} ++ ++const struct drm_crtc_funcs crtc_funcs = { ++ .set_config = drm_atomic_helper_set_config, ++ .page_flip = drm_atomic_helper_page_flip, ++ .reset = drm_atomic_helper_crtc_reset, ++ .destroy = drm_crtc_cleanup, ++ .atomic_duplicate_state = drm_atomic_helper_crtc_duplicate_state, ++ .atomic_destroy_state = drm_atomic_helper_crtc_destroy_state, ++ .enable_vblank = baikal_vdu_enable_vblank, ++ .disable_vblank = baikal_vdu_disable_vblank, ++}; ++ ++const struct drm_crtc_helper_funcs crtc_helper_funcs = { ++ .mode_fixup = baikal_vdu_crtc_mode_fixup, ++ .mode_set_nofb = baikal_vdu_crtc_helper_mode_set_nofb, ++ .atomic_flush = baikal_vdu_crtc_helper_atomic_flush, ++ .disable = baikal_vdu_crtc_helper_disable, ++ .atomic_enable = baikal_vdu_crtc_helper_enable, ++}; ++ ++int baikal_vdu_crtc_create(struct drm_device *dev) ++{ ++ struct baikal_vdu_private *priv = dev->dev_private; ++ struct drm_crtc *crtc = &priv->crtc; ++ ++ drm_crtc_init_with_planes(dev, crtc, ++ &priv->primary, NULL, ++ &crtc_funcs, "primary"); ++ drm_crtc_helper_add(crtc, &crtc_helper_funcs); ++ ++ /* XXX: The runtime clock disabling still results in ++ * occasional system hangs, and needs debugging. ++ */ ++ ++ DRM_DEV_DEBUG_DRIVER(crtc->dev->dev, "enabling pixel clock\n"); ++ clk_prepare_enable(priv->clk); ++ ++ return 0; ++} +diff --git a/drivers/gpu/drm/baikal/baikal_vdu_debugfs.c b/drivers/gpu/drm/baikal/baikal_vdu_debugfs.c +new file mode 100644 +index 000000000000..77be6aa588dc +--- /dev/null ++++ b/drivers/gpu/drm/baikal/baikal_vdu_debugfs.c +@@ -0,0 +1,87 @@ ++/* ++ * Copyright (C) 2019-2020 Baikal Electronics JSC ++ * ++ * Author: Pavel Parkhomenko ++ * ++ * Parts of this file were based on sources as follows: ++ * ++ * Copyright © 2017 Broadcom ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License version 2 as ++ * published by the Free Software Foundation. ++ */ ++ ++#include ++#include ++#include ++#include ++#include ++ ++#include "baikal_vdu_drm.h" ++#include "baikal_vdu_regs.h" ++ ++#define REGDEF(reg) { reg, #reg } ++static const struct { ++ u32 reg; ++ const char *name; ++} baikal_vdu_reg_defs[] = { ++ REGDEF(CR1), ++ REGDEF(HTR), ++ REGDEF(VTR1), ++ REGDEF(VTR2), ++ REGDEF(PCTR), ++ REGDEF(ISR), ++ REGDEF(IMR), ++ REGDEF(IVR), ++ REGDEF(ISCR), ++ REGDEF(DBAR), ++ REGDEF(DCAR), ++ REGDEF(DEAR), ++ REGDEF(HVTER), ++ REGDEF(HPPLOR), ++ REGDEF(GPIOR), ++ REGDEF(OWER), ++ REGDEF(OWXSER0), ++ REGDEF(OWYSER0), ++ REGDEF(OWDBAR0), ++ REGDEF(OWDCAR0), ++ REGDEF(OWDEAR0), ++ REGDEF(OWXSER1), ++ REGDEF(OWYSER1), ++ REGDEF(OWDBAR1), ++ REGDEF(OWDCAR1), ++ REGDEF(OWDEAR1), ++ REGDEF(MRR), ++}; ++ ++int baikal_vdu_debugfs_regs(struct seq_file *m, void *unused) ++{ ++ struct drm_info_node *node = (struct drm_info_node *)m->private; ++ struct drm_device *dev = node->minor->dev; ++ struct baikal_vdu_private *priv = dev->dev_private; ++ int i; ++ ++ for (i = 0; i < ARRAY_SIZE(baikal_vdu_reg_defs); i++) { ++ seq_printf(m, "%s (0x%04x): 0x%08x\n", ++ baikal_vdu_reg_defs[i].name, baikal_vdu_reg_defs[i].reg, ++ readl(priv->regs + baikal_vdu_reg_defs[i].reg)); ++ } ++ ++ for (i = 0; i < ARRAY_SIZE(priv->counters); i++) { ++ seq_printf(m, "COUNTER[%d]: 0x%08x\n", i, priv->counters[i]); ++ } ++ ++ return 0; ++} ++ ++static const struct drm_info_list baikal_vdu_debugfs_list[] = { ++ {"regs", baikal_vdu_debugfs_regs, 0}, ++}; ++ ++void baikal_vdu_debugfs_init(struct drm_minor *minor) ++{ ++ drm_debugfs_create_files(baikal_vdu_debugfs_list, ++ ARRAY_SIZE(baikal_vdu_debugfs_list), ++ minor->debugfs_root, minor); ++} +diff --git a/drivers/gpu/drm/baikal/baikal_vdu_drm.h b/drivers/gpu/drm/baikal/baikal_vdu_drm.h +new file mode 100644 +index 000000000000..755d4abeedf7 +--- /dev/null ++++ b/drivers/gpu/drm/baikal/baikal_vdu_drm.h +@@ -0,0 +1,65 @@ ++/* ++ * Copyright (C) 2019-2020 Baikal Electronics JSC ++ * ++ * Author: Pavel Parkhomenko ++ * ++ * Parts of this file were based on sources as follows: ++ * ++ * Copyright (c) 2006-2008 Intel Corporation ++ * Copyright (c) 2007 Dave Airlie ++ * Copyright (C) 2011 Texas Instruments ++ * (C) COPYRIGHT 2012-2013 ARM Limited. All rights reserved. ++ * ++ * This program is free software and is provided to you under the terms of the ++ * GNU General Public License version 2 as published by the Free Software ++ * Foundation, and any use by you of this program is subject to the terms of ++ * such GNU licence. ++ * ++ */ ++ ++#ifndef __BAIKAL_VDU_DRM_H__ ++#define __BAIKAL_VDU_DRM_H__ ++ ++#include ++#include ++ ++#define VDU_TYPE_HDMI 0 ++#define VDU_TYPE_LVDS 1 ++ ++struct baikal_vdu_private { ++ struct drm_device *drm; ++ ++ unsigned int irq; ++ bool irq_enabled; ++ ++ struct drm_connector connector; ++ struct drm_crtc crtc; ++ struct drm_encoder encoder; ++ struct drm_panel *panel; ++ struct drm_bridge *bridge; ++ struct drm_plane primary; ++ ++ void *regs; ++ struct clk *clk; ++ u32 counters[20]; ++ int mode_fixup; ++ int type; ++ u32 ep_count; ++ u32 fb_addr; ++ u32 fb_end; ++ ++ struct gpio_desc *enable_gpio; ++}; ++ ++/* CRTC Functions */ ++int baikal_vdu_crtc_create(struct drm_device *dev); ++irqreturn_t baikal_vdu_irq(int irq, void *data); ++ ++int baikal_vdu_primary_plane_init(struct drm_device *dev); ++ ++/* Connector Functions */ ++int baikal_vdu_lvds_connector_create(struct drm_device *dev); ++ ++void baikal_vdu_debugfs_init(struct drm_minor *minor); ++ ++#endif /* __BAIKAL_VDU_DRM_H__ */ +diff --git a/drivers/gpu/drm/baikal/baikal_vdu_drv.c b/drivers/gpu/drm/baikal/baikal_vdu_drv.c +new file mode 100644 +index 000000000000..af0e0ca193c7 +--- /dev/null ++++ b/drivers/gpu/drm/baikal/baikal_vdu_drv.c +@@ -0,0 +1,363 @@ ++/* ++ * Copyright (C) 2019-2020 Baikal Electronics JSC ++ * ++ * Author: Pavel Parkhomenko ++ * All bugs by Alexey Sheplyakov ++ * ++ * This driver is based on ARM PL111 DRM driver ++ * ++ * Parts of this file were based on sources as follows: ++ * ++ * Copyright (c) 2006-2008 Intel Corporation ++ * Copyright (c) 2007 Dave Airlie ++ * Copyright (C) 2011 Texas Instruments ++ * (C) COPYRIGHT 2012-2013 ARM Limited. All rights reserved. ++ * ++ * This program is free software and is provided to you under the terms of the ++ * GNU General Public License version 2 as published by the Free Software ++ * Foundation, and any use by you of this program is subject to the terms of ++ * such GNU licence. ++ * ++ */ ++ ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++ ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++ ++#include "baikal_vdu_drm.h" ++#include "baikal_vdu_regs.h" ++ ++#define DRIVER_NAME "baikal-vdu" ++#define DRIVER_DESC "DRM module for Baikal VDU" ++#define DRIVER_DATE "20200131" ++ ++#define BAIKAL_SMC_SCP_LOG_DISABLE 0x82000200 ++ ++int mode_fixup = 0; ++ ++static struct drm_mode_config_funcs mode_config_funcs = { ++ .fb_create = drm_gem_fb_create, ++ .atomic_check = drm_atomic_helper_check, ++ .atomic_commit = drm_atomic_helper_commit, ++}; ++ ++static const struct drm_encoder_funcs baikal_vdu_encoder_funcs = { ++ .destroy = drm_encoder_cleanup, ++}; ++ ++DEFINE_DRM_GEM_CMA_FOPS(drm_fops); ++ ++static struct drm_driver vdu_drm_driver = { ++ .driver_features = DRIVER_GEM | DRIVER_MODESET | DRIVER_ATOMIC, ++ .ioctls = NULL, ++ .fops = &drm_fops, ++ .name = DRIVER_NAME, ++ .desc = DRIVER_DESC, ++ .date = DRIVER_DATE, ++ .major = 1, ++ .minor = 0, ++ .patchlevel = 0, ++ DRM_GEM_CMA_DRIVER_OPS, ++#if defined(CONFIG_DEBUG_FS) ++ .debugfs_init = baikal_vdu_debugfs_init, ++#endif ++}; ++ ++static int vdu_modeset_init(struct drm_device *dev) ++{ ++ struct drm_mode_config *mode_config; ++ struct baikal_vdu_private *priv = dev->dev_private; ++ struct arm_smccc_res res; ++ int ret = 0, ep_count = 0; ++ ++ if (priv == NULL) ++ return -EINVAL; ++ ++ drm_mode_config_init(dev); ++ mode_config = &dev->mode_config; ++ mode_config->funcs = &mode_config_funcs; ++ mode_config->min_width = 1; ++ mode_config->max_width = 4096; ++ mode_config->min_height = 1; ++ mode_config->max_height = 4096; ++ ++ ret = baikal_vdu_primary_plane_init(dev); ++ if (ret != 0) { ++ dev_err(dev->dev, "Failed to init primary plane\n"); ++ goto out_config; ++ } ++ ++ ret = baikal_vdu_crtc_create(dev); ++ if (ret) { ++ dev_err(dev->dev, "Failed to create crtc\n"); ++ goto out_config; ++ } ++ ++ ret = drm_of_find_panel_or_bridge(dev->dev->of_node, -1, -1, ++ &priv->panel, ++ &priv->bridge); ++ if (ret == -EPROBE_DEFER) { ++ dev_info(dev->dev, "Bridge probe deferred\n"); ++ goto out_config; ++ } ++ ep_count = of_graph_get_endpoint_count(dev->dev->of_node); ++ if (ep_count <= 0) { ++ dev_err(dev->dev, "no endpoints connected to panel/bridge\n"); ++ goto out_config; ++ } ++ priv->ep_count = ep_count; ++ ++ if (priv->bridge) { ++ struct drm_encoder *encoder = &priv->encoder; ++ ret = drm_encoder_init(dev, encoder, &baikal_vdu_encoder_funcs, ++ DRM_MODE_ENCODER_NONE, NULL); ++ if (ret) { ++ dev_err(dev->dev, "failed to create DRM encoder\n"); ++ goto out_config; ++ } ++ encoder->crtc = &priv->crtc; ++ encoder->possible_crtcs = drm_crtc_mask(encoder->crtc); ++ priv->bridge->encoder = &priv->encoder; ++ ret = drm_bridge_attach(&priv->encoder, priv->bridge, NULL, 0); ++ if (ret) { ++ dev_err(dev->dev, "Failed to attach DRM bridge %d\n", ret); ++ goto out_config; ++ } ++ } else if (priv->panel) { ++ dev_dbg(dev->dev, "panel has %d endpoints\n", priv->ep_count); ++ ret = baikal_vdu_lvds_connector_create(dev); ++ if (ret) { ++ dev_err(dev->dev, "Failed to create DRM connector\n"); ++ goto out_config; ++ } ++ } else ++ ret = -EINVAL; ++ ++ if (ret) { ++ dev_err(dev->dev, "No bridge or panel attached!\n"); ++ goto out_config; ++ } ++ ++ priv->clk = clk_get(dev->dev, "pclk"); ++ if (IS_ERR(priv->clk)) { ++ dev_err(dev->dev, "fatal: unable to get pclk, err %ld\n", PTR_ERR(priv->clk)); ++ ret = PTR_ERR(priv->clk); ++ goto out_config; ++ } ++ ++ priv->mode_fixup = mode_fixup; ++ ++ drm_aperture_remove_framebuffers(false, &vdu_drm_driver); ++ ++ ret = drm_vblank_init(dev, 1); ++ if (ret != 0) { ++ dev_err(dev->dev, "Failed to init vblank\n"); ++ goto out_clk; ++ } ++ ++ arm_smccc_smc(BAIKAL_SMC_SCP_LOG_DISABLE, 0, 0, 0, 0, 0, 0, 0, &res); ++ ++ drm_mode_config_reset(dev); ++ ++ drm_kms_helper_poll_init(dev); ++ ++ ret = drm_dev_register(dev, 0); ++ if (ret) ++ goto out_clk; ++ ++ drm_fbdev_generic_setup(dev, 32); ++ goto finish; ++ ++out_clk: ++ clk_put(priv->clk); ++out_config: ++ drm_mode_config_cleanup(dev); ++finish: ++ return ret; ++} ++ ++ ++static int baikal_vdu_irq_install(struct baikal_vdu_private *priv, int irq) ++{ ++ int ret; ++ ret= request_irq(irq, baikal_vdu_irq, 0, DRIVER_NAME, priv->drm); ++ if (ret < 0) ++ return ret; ++ priv->irq_enabled = true; ++ return 0; ++} ++ ++static void baikal_vdu_irq_uninstall(struct baikal_vdu_private *priv) ++{ ++ if (priv->irq_enabled) { ++ priv->irq_enabled = false; ++ disable_irq(priv->irq); ++ free_irq(priv->irq, priv->drm); ++ } ++} ++ ++static int vdu_maybe_enable_lvds(struct baikal_vdu_private *vdu) ++{ ++ int err = 0; ++ struct device *dev; ++ if (!vdu->drm) { ++ pr_err("%s: vdu->drm is NULL\n", __func__); ++ return -EINVAL; ++ } ++ dev = vdu->drm->dev; ++ ++ vdu->enable_gpio = devm_gpiod_get_optional(dev, "enable", GPIOD_OUT_LOW); ++ if (IS_ERR(vdu->enable_gpio)) { ++ err = (int)PTR_ERR(vdu->enable_gpio); ++ dev_err(dev, "failed to get enable-gpios, error %d\n", err); ++ vdu->enable_gpio = NULL; ++ return err; ++ } ++ if (vdu->enable_gpio) { ++ dev_dbg(dev, "%s: setting enable-gpio\n", __func__); ++ gpiod_set_value_cansleep(vdu->enable_gpio, 1); ++ } else { ++ dev_dbg(dev, "%s: no enable-gpios, assuming it's handled by panel-lvds\n", __func__); ++ } ++ return 0; ++} ++ ++static int baikal_vdu_drm_probe(struct platform_device *pdev) ++{ ++ struct device *dev = &pdev->dev; ++ struct baikal_vdu_private *priv; ++ struct drm_device *drm; ++ struct resource *mem; ++ int irq; ++ int ret; ++ ++ priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); ++ if (!priv) ++ return -ENOMEM; ++ ++ drm = drm_dev_alloc(&vdu_drm_driver, dev); ++ if (IS_ERR(drm)) ++ return PTR_ERR(drm); ++ platform_set_drvdata(pdev, drm); ++ priv->drm = drm; ++ drm->dev_private = priv; ++ ++ if (!(mem = platform_get_resource(pdev, IORESOURCE_MEM, 0))) { ++ dev_err(dev, "%s no MMIO resource specified\n", __func__); ++ return -EINVAL; ++ } ++ ++ priv->regs = devm_ioremap_resource(dev, mem); ++ if (IS_ERR(priv->regs)) { ++ dev_err(dev, "%s MMIO allocation failed\n", __func__); ++ return PTR_ERR(priv->regs); ++ } ++ ++ /* turn off interrupts before requesting the irq */ ++ writel(0, priv->regs + IMR); ++ ++ irq = platform_get_irq(pdev, 0); ++ if (irq < 0) { ++ dev_err(dev, "%s no IRQ resource specified\n", __func__); ++ return -EINVAL; ++ } ++ priv->irq = irq; ++ ++ ret = baikal_vdu_irq_install(priv, irq); ++ if (ret != 0) { ++ dev_err(dev, "%s IRQ %d allocation failed\n", __func__, irq); ++ return ret; ++ } ++ ++ if (pdev->dev.of_node && of_property_read_bool(pdev->dev.of_node, "lvds-out")) { ++ priv->type = VDU_TYPE_LVDS; ++ if (of_property_read_u32(pdev->dev.of_node, "num-lanes", &priv->ep_count)) ++ priv->ep_count = 1; ++ } ++ else ++ priv->type = VDU_TYPE_HDMI; ++ ++ ret = vdu_modeset_init(drm); ++ if (ret != 0) { ++ dev_err(dev, "Failed to init modeset\n"); ++ goto dev_unref; ++ } ++ ++ ret = vdu_maybe_enable_lvds(priv); ++ if (ret != 0) { ++ dev_err(dev, "failed to enable LVDS\n"); ++ } ++ ++ return 0; ++ ++dev_unref: ++ writel(0, priv->regs + IMR); ++ writel(0x3ffff, priv->regs + ISR); ++ baikal_vdu_irq_uninstall(priv); ++ drm->dev_private = NULL; ++ drm_dev_put(drm); ++ return ret; ++} ++ ++static int baikal_vdu_drm_remove(struct platform_device *pdev) ++{ ++ struct drm_device *drm; ++ struct baikal_vdu_private *priv; ++ ++ drm = platform_get_drvdata(pdev); ++ if (!drm) { ++ return -1; ++ } ++ priv = drm->dev_private; ++ ++ drm_dev_unregister(drm); ++ drm_mode_config_cleanup(drm); ++ baikal_vdu_irq_uninstall(priv); ++ drm->dev_private = NULL; ++ drm_dev_put(drm); ++ ++ return 0; ++} ++ ++static const struct of_device_id baikal_vdu_of_match[] = { ++ { .compatible = "baikal,vdu" }, ++ { }, ++}; ++MODULE_DEVICE_TABLE(of, baikal_vdu_of_match); ++ ++static struct platform_driver baikal_vdu_platform_driver = { ++ .probe = baikal_vdu_drm_probe, ++ .remove = baikal_vdu_drm_remove, ++ .driver = { ++ .name = DRIVER_NAME, ++ .of_match_table = baikal_vdu_of_match, ++ }, ++}; ++ ++module_param(mode_fixup, int, 0644); ++ ++module_platform_driver(baikal_vdu_platform_driver); ++ ++MODULE_AUTHOR("Pavel Parkhomenko "); ++MODULE_DESCRIPTION("Baikal Electronics BE-M1000 Video Display Unit (VDU) DRM Driver"); ++MODULE_LICENSE("GPL"); ++MODULE_ALIAS("platform:" DRIVER_NAME); ++MODULE_SOFTDEP("pre: baikal_hdmi"); +diff --git a/drivers/gpu/drm/baikal/baikal_vdu_plane.c b/drivers/gpu/drm/baikal/baikal_vdu_plane.c +new file mode 100644 +index 000000000000..4a3e971793d2 +--- /dev/null ++++ b/drivers/gpu/drm/baikal/baikal_vdu_plane.c +@@ -0,0 +1,209 @@ ++/* ++ * Copyright (C) 2019-2020 Baikal Electronics JSC ++ * ++ * Author: Pavel Parkhomenko ++ * ++ * Parts of this file were based on sources as follows: ++ * ++ * Copyright (c) 2006-2008 Intel Corporation ++ * Copyright (c) 2007 Dave Airlie ++ * Copyright (C) 2011 Texas Instruments ++ * (C) COPYRIGHT 2012-2013 ARM Limited. All rights reserved. ++ * ++ * This program is free software and is provided to you under the terms of the ++ * GNU General Public License version 2 as published by the Free Software ++ * Foundation, and any use by you of this program is subject to the terms of ++ * such GNU licence. ++ * ++ */ ++ ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++ ++#include "baikal_vdu_drm.h" ++#include "baikal_vdu_regs.h" ++ ++static int baikal_vdu_primary_plane_atomic_check(struct drm_plane *plane, ++ struct drm_atomic_state *atomic_state) ++{ ++ struct drm_device *dev = plane->dev; ++ struct baikal_vdu_private *priv = dev->dev_private; ++ struct drm_crtc_state *crtc_state; ++ struct drm_plane_state *state; ++ struct drm_display_mode *mode; ++ int rate, ret; ++ u32 cntl; ++ ++ state = drm_atomic_get_new_plane_state(atomic_state, plane); ++ if (!state || !state->crtc) ++ return 0; ++ ++ crtc_state = drm_atomic_get_crtc_state(state->state, state->crtc); ++ if (IS_ERR(crtc_state)) { ++ ret = PTR_ERR(crtc_state); ++ dev_warn(dev->dev, "failed to get crtc_state: %d\n", ret); ++ return ret; ++ } ++ mode = &crtc_state->adjusted_mode; ++ rate = mode->clock * 1000; ++ if (rate == clk_get_rate(priv->clk)) ++ return 0; ++ ++ /* hold clock domain reset; disable clocking */ ++ writel(0, priv->regs + PCTR); ++ ++ if (__clk_is_enabled(priv->clk)) ++ clk_disable_unprepare(priv->clk); ++ ret = clk_set_rate(priv->clk, rate); ++ DRM_DEV_DEBUG_DRIVER(dev->dev, "Requested pixel clock is %d Hz\n", rate); ++ ++ if (ret < 0) { ++ DRM_ERROR("Cannot set desired pixel clock (%d Hz)\n", ++ rate); ++ ret = -EINVAL; ++ } else { ++ clk_prepare_enable(priv->clk); ++ if (__clk_is_enabled(priv->clk)) ++ ret = 0; ++ else { ++ DRM_ERROR("PLL could not lock at desired frequency (%d Hz)\n", ++ rate); ++ ret = -EINVAL; ++ } ++ } ++ ++ /* release clock domain reset; enable clocking */ ++ cntl = readl(priv->regs + PCTR); ++ cntl |= PCTR_PCR + PCTR_PCI; ++ writel(cntl, priv->regs + PCTR); ++ ++ return ret; ++} ++ ++static void baikal_vdu_primary_plane_atomic_update(struct drm_plane *plane, ++ struct drm_atomic_state *old_state) ++{ ++ struct drm_device *dev = plane->dev; ++ struct baikal_vdu_private *priv = dev->dev_private; ++ struct drm_plane_state *state = plane->state; ++ struct drm_framebuffer *fb = state->fb; ++ u32 cntl, addr, end; ++ ++ if (!fb) ++ return; ++ ++ addr = drm_fb_cma_get_gem_addr(fb, state, 0); ++ priv->fb_addr = addr & 0xfffffff8; ++ ++ cntl = readl(priv->regs + CR1); ++ cntl &= ~CR1_BPP_MASK; ++ ++ /* Note that the the hardware's format reader takes 'r' from ++ * the low bit, while DRM formats list channels from high bit ++ * to low bit as you read left to right. ++ */ ++ switch (fb->format->format) { ++ case DRM_FORMAT_BGR888: ++ cntl |= CR1_BPP24 | CR1_FBP | CR1_BGR; ++ break; ++ case DRM_FORMAT_RGB888: ++ cntl |= CR1_BPP24 | CR1_FBP; ++ break; ++ case DRM_FORMAT_ABGR8888: ++ case DRM_FORMAT_XBGR8888: ++ cntl |= CR1_BPP24 | CR1_BGR; ++ break; ++ case DRM_FORMAT_ARGB8888: ++ case DRM_FORMAT_XRGB8888: ++ cntl |= CR1_BPP24; ++ break; ++ case DRM_FORMAT_BGR565: ++ cntl |= CR1_BPP16_565 | CR1_BGR; ++ break; ++ case DRM_FORMAT_RGB565: ++ cntl |= CR1_BPP16_565; ++ break; ++ case DRM_FORMAT_ABGR1555: ++ case DRM_FORMAT_XBGR1555: ++ cntl |= CR1_BPP16_555 | CR1_BGR; ++ break; ++ case DRM_FORMAT_ARGB1555: ++ case DRM_FORMAT_XRGB1555: ++ cntl |= CR1_BPP16_555; ++ break; ++ default: ++ WARN_ONCE(true, "Unknown FB format 0x%08x, set XRGB8888 instead\n", ++ fb->format->format); ++ cntl |= CR1_BPP24; ++ break; ++ } ++ ++ writel(priv->fb_addr, priv->regs + DBAR); ++ end = ((priv->fb_addr + fb->height * fb->pitches[0] - 1) & MRR_DEAR_MRR_MASK) | \ ++ MRR_OUTSTND_RQ(4); ++ ++ if (priv->fb_end < end) { ++ writel(end, priv->regs + MRR); ++ priv->fb_end = end; ++ } ++ writel(cntl, priv->regs + CR1); ++} ++ ++static const struct drm_plane_helper_funcs baikal_vdu_primary_plane_helper_funcs = { ++ .atomic_check = baikal_vdu_primary_plane_atomic_check, ++ .atomic_update = baikal_vdu_primary_plane_atomic_update, ++}; ++ ++static const struct drm_plane_funcs baikal_vdu_primary_plane_funcs = { ++ .update_plane = drm_atomic_helper_update_plane, ++ .disable_plane = drm_atomic_helper_disable_plane, ++ .reset = drm_atomic_helper_plane_reset, ++ .destroy = drm_plane_cleanup, ++ .atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state, ++ .atomic_destroy_state = drm_atomic_helper_plane_destroy_state, ++}; ++ ++int baikal_vdu_primary_plane_init(struct drm_device *drm) ++{ ++ struct baikal_vdu_private *priv = drm->dev_private; ++ struct drm_plane *plane = &priv->primary; ++ static const u32 formats[] = { ++ DRM_FORMAT_BGR888, ++ DRM_FORMAT_RGB888, ++ DRM_FORMAT_ABGR8888, ++ DRM_FORMAT_XBGR8888, ++ DRM_FORMAT_ARGB8888, ++ DRM_FORMAT_XRGB8888, ++ DRM_FORMAT_BGR565, ++ DRM_FORMAT_RGB565, ++ DRM_FORMAT_ABGR1555, ++ DRM_FORMAT_XBGR1555, ++ DRM_FORMAT_ARGB1555, ++ DRM_FORMAT_XRGB1555, ++ }; ++ int ret; ++ ++ ret = drm_universal_plane_init(drm, plane, 0, ++ &baikal_vdu_primary_plane_funcs, ++ formats, ++ ARRAY_SIZE(formats), ++ NULL, ++ DRM_PLANE_TYPE_PRIMARY, ++ NULL); ++ if (ret) ++ return ret; ++ ++ drm_plane_helper_add(plane, &baikal_vdu_primary_plane_helper_funcs); ++ ++ return 0; ++} ++ ++ +diff --git a/drivers/gpu/drm/baikal/baikal_vdu_regs.h b/drivers/gpu/drm/baikal/baikal_vdu_regs.h +new file mode 100644 +index 000000000000..5553fcac5fec +--- /dev/null ++++ b/drivers/gpu/drm/baikal/baikal_vdu_regs.h +@@ -0,0 +1,139 @@ ++/* SPDX-License-Identifier: GPL-2.0 */ ++/* ++ * Copyright (C) 2019-2021 Baikal Electronics JSC ++ * ++ * Author: Pavel Parkhomenko ++ * ++ * Parts of this file were based on sources as follows: ++ * ++ * David A Rusling ++ * Copyright (C) 2001 ARM Limited ++ */ ++ ++#ifndef __BAIKAL_VDU_REGS_H__ ++#define __BAIKAL_VDU_REGS_H__ ++ ++#define CR1 0x000 ++#define HTR 0x008 ++#define VTR1 0x00C ++#define VTR2 0x010 ++#define PCTR 0x014 ++#define ISR 0x018 ++#define IMR 0x01C ++#define IVR 0x020 ++#define ISCR 0x024 ++#define DBAR 0x028 ++#define DCAR 0x02C ++#define DEAR 0x030 ++#define HVTER 0x044 ++#define HPPLOR 0x048 ++#define GPIOR 0x1F8 ++#define OWER 0x600 ++#define OWXSER0 0x604 ++#define OWYSER0 0x608 ++#define OWDBAR0 0x60C ++#define OWDCAR0 0x610 ++#define OWDEAR0 0x614 ++#define OWXSER1 0x618 ++#define OWYSER1 0x61C ++#define OWDBAR1 0x620 ++#define OWDCAR1 0x624 ++#define OWDEAR1 0x628 ++#define MRR 0xFFC ++ ++#define INTR_BAU BIT(7) ++#define INTR_VCT BIT(6) ++#define INTR_MBE BIT(5) ++#define INTR_FER BIT(4) ++ ++#define CR1_FBP BIT(19) ++#define CR1_FDW_MASK GENMASK(17, 16) ++#define CR1_FDW_4_WORDS (0 << 16) ++#define CR1_FDW_8_WORDS (1 << 16) ++#define CR1_FDW_16_WORDS (2 << 16) ++#define CR1_OPS_LCD18 (0 << 13) ++#define CR1_OPS_LCD24 (1 << 13) ++#define CR1_OPS_565 (0 << 12) ++#define CR1_OPS_555 (1 << 12) ++#define CR1_VSP BIT(11) ++#define CR1_HSP BIT(10) ++#define CR1_DEP BIT(8) ++#define CR1_BGR BIT(5) ++#define CR1_BPP_MASK GENMASK(4, 2) ++#define CR1_BPP1 (0 << 2) ++#define CR1_BPP2 (1 << 2) ++#define CR1_BPP4 (2 << 2) ++#define CR1_BPP8 (3 << 2) ++#define CR1_BPP16 (4 << 2) ++#define CR1_BPP18 (5 << 2) ++#define CR1_BPP24 (6 << 2) ++#define CR1_LCE BIT(0) ++ ++#define CR1_BPP16_555 ((CR1_BPP16) | (CR1_OPS_555)) ++#define CR1_BPP16_565 ((CR1_BPP16) | (CR1_OPS_565)) ++ ++#define VTR1_VBP_MASK GENMASK(23, 16) ++#define VTR1_VBP(x) ((x) << 16) ++#define VTR1_VBP_LSB_WIDTH 8 ++#define VTR1_VFP_MASK GENMASK(15, 8) ++#define VTR1_VFP(x) ((x) << 8) ++#define VTR1_VFP_LSB_WIDTH 8 ++#define VTR1_VSW_MASK GENMASK(7, 0) ++#define VTR1_VSW(x) ((x) << 0) ++#define VTR1_VSW_LSB_WIDTH 8 ++ ++#define VTR2_LPP_MASK GENMASK(11, 0) ++ ++#define HTR_HSW_MASK GENMASK(31, 24) ++#define HTR_HSW(x) ((x) << 24) ++#define HTR_HSW_LSB_WIDTH 8 ++#define HTR_HBP_MASK GENMASK(23, 16) ++#define HTR_HBP(x) ((x) << 16) ++#define HTR_HBP_LSB_WIDTH 8 ++#define HTR_PPL_MASK GENMASK(15, 8) ++#define HTR_PPL(x) ((x) << 8) ++#define HTR_HFP_MASK GENMASK(7, 0) ++#define HTR_HFP(x) ((x) << 0) ++#define HTR_HFP_LSB_WIDTH 8 ++ ++#define PCTR_PCI2 BIT(11) ++#define PCTR_PCR BIT(10) ++#define PCTR_PCI BIT(9) ++#define PCTR_PCB BIT(8) ++#define PCTR_PCD_MASK GENMASK(7, 0) ++#define PCTR_MAX_PCD 128 ++ ++#define ISCR_VSC_OFF 0x0 ++#define ISCR_VSC_VSW 0x4 ++#define ISCR_VSC_VBP 0x5 ++#define ISCR_VSC_VACTIVE 0x6 ++#define ISCR_VSC_VFP 0x7 ++ ++#define HVTER_VSWE_MASK GENMASK(25, 24) ++#define HVTER_VSWE(x) ((x) << 24) ++#define HVTER_HSWE_MASK GENMASK(17, 16) ++#define HVTER_HSWE(x) ((x) << 16) ++#define HVTER_VBPE_MASK GENMASK(13, 12) ++#define HVTER_VBPE(x) ((x) << 12) ++#define HVTER_VFPE_MASK GENMASK(9, 8) ++#define HVTER_VFPE(x) ((x) << 8) ++#define HVTER_HBPE_MASK GENMASK(5, 4) ++#define HVTER_HBPE(x) ((x) << 4) ++#define HVTER_HFPE_MASK GENMASK(1, 0) ++#define HVTER_HFPE(x) ((x) << 0) ++ ++#define HPPLOR_HPOE BIT(31) ++#define HPPLOR_HPPLO_MASK GENMASK(11, 0) ++#define HPPLOR_HPPLO(x) ((x) << 0) ++ ++#define GPIOR_UHD_MASK GENMASK(23, 16) ++#define GPIOR_UHD_SNGL_PORT (0 << 18) ++#define GPIOR_UHD_DUAL_PORT (1 << 18) ++#define GPIOR_UHD_QUAD_PORT (2 << 18) ++#define GPIOR_UHD_ENB BIT(17) ++ ++#define MRR_DEAR_MRR_MASK GENMASK(31, 3) ++#define MRR_OUTSTND_RQ_MASK GENMASK(2, 0) ++#define MRR_OUTSTND_RQ(x) ((x >> 1) << 0) ++ ++#endif /* __BAIKAL_VDU_REGS_H__ */ +diff --git a/drivers/gpu/drm/bridge/Kconfig b/drivers/gpu/drm/bridge/Kconfig +index 431b6e12a81f..0c2661be5937 100644 +--- a/drivers/gpu/drm/bridge/Kconfig ++++ b/drivers/gpu/drm/bridge/Kconfig +@@ -135,6 +135,13 @@ config DRM_LVDS_CODEC + Support for transparent LVDS encoders and decoders that don't + require any configuration. + ++config DRM_BAIKAL_HDMI ++ tristate "Baikal-M HDMI transmitter" ++ default y if ARCH_BAIKAL ++ select DRM_DW_HDMI ++ help ++ Choose this if you want to use HDMI on Baikal-M. ++ + config DRM_MEGACHIPS_STDPXXXX_GE_B850V3_FW + tristate "MegaChips stdp4028-ge-b850v3-fw and stdp2690-ge-b850v3-fw" + depends on OF +diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi-ahb-audio.c b/drivers/gpu/drm/bridge/synopsys/dw-hdmi-ahb-audio.c +index d0db1acf11d7..3bb652e42718 100644 +--- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi-ahb-audio.c ++++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi-ahb-audio.c +@@ -132,12 +132,45 @@ struct snd_dw_hdmi { + u8 cs[192][8]; + }; + +-static void dw_hdmi_writel(u32 val, void __iomem *ptr) ++static inline void dw_hdmi_writeb_relaxed(u8 value, const struct dw_hdmi_audio_data *data, int offset) + { +- writeb_relaxed(val, ptr); +- writeb_relaxed(val >> 8, ptr + 1); +- writeb_relaxed(val >> 16, ptr + 2); +- writeb_relaxed(val >> 24, ptr + 3); ++ void __iomem *base = data->base; ++ if (data->reg_offset != 0) ++ offset <<= data->reg_offset; ++ writeb_relaxed(value, base + offset); ++} ++ ++static inline void dw_hdmi_writeb(u8 value, const struct dw_hdmi_audio_data *data, int offset) ++{ ++ void __iomem *base = data->base; ++ if (data->reg_offset != 0) ++ offset <<= data->reg_offset; ++ writeb(value, base + offset); ++} ++ ++static inline u8 dw_hdmi_readb(const struct dw_hdmi_audio_data *data, int offset) ++{ ++ void __iomem *base = data->base; ++ if (data->reg_offset != 0) ++ offset <<= data->reg_offset; ++ return readb(base + offset); ++ ++} ++ ++static inline u8 dw_hdmi_readb_relaxed(const struct dw_hdmi_audio_data *data, int offset) ++{ ++ void __iomem *base = data->base; ++ if (data->reg_offset != 0) ++ offset <<= data->reg_offset; ++ return readb_relaxed(base + offset); ++} ++ ++static void dw_hdmi_writel(u32 val, const struct dw_hdmi_audio_data *data, int offset) ++{ ++ dw_hdmi_writeb_relaxed(val, data, offset); ++ dw_hdmi_writeb_relaxed(val >> 8, data, offset + 1); ++ dw_hdmi_writeb_relaxed(val >> 16, data, offset + 2); ++ dw_hdmi_writeb_relaxed(val >> 24, data, offset + 3); + } + + /* +@@ -232,7 +265,6 @@ static void dw_hdmi_create_cs(struct snd_dw_hdmi *dw, + + static void dw_hdmi_start_dma(struct snd_dw_hdmi *dw) + { +- void __iomem *base = dw->data.base; + unsigned offset = dw->buf_offset; + unsigned period = dw->buf_period; + u32 start, stop; +@@ -240,18 +272,18 @@ static void dw_hdmi_start_dma(struct snd_dw_hdmi *dw) + dw->reformat(dw, offset, period); + + /* Clear all irqs before enabling irqs and starting DMA */ +- writeb_relaxed(HDMI_IH_AHBDMAAUD_STAT0_ALL, +- base + HDMI_IH_AHBDMAAUD_STAT0); ++ dw_hdmi_writeb_relaxed(HDMI_IH_AHBDMAAUD_STAT0_ALL, ++ &dw->data, HDMI_IH_AHBDMAAUD_STAT0); + + start = dw->buf_addr + offset; + stop = start + period - 1; + + /* Setup the hardware start/stop addresses */ +- dw_hdmi_writel(start, base + HDMI_AHB_DMA_STRADDR0); +- dw_hdmi_writel(stop, base + HDMI_AHB_DMA_STPADDR0); ++ dw_hdmi_writel(start, &dw->data, HDMI_AHB_DMA_STRADDR0); ++ dw_hdmi_writel(stop, &dw->data, HDMI_AHB_DMA_STPADDR0); + +- writeb_relaxed((u8)~HDMI_AHB_DMA_MASK_DONE, base + HDMI_AHB_DMA_MASK); +- writeb(HDMI_AHB_DMA_START_START, base + HDMI_AHB_DMA_START); ++ dw_hdmi_writeb_relaxed((u8)~HDMI_AHB_DMA_MASK_DONE, &dw->data, HDMI_AHB_DMA_MASK); ++ dw_hdmi_writeb(HDMI_AHB_DMA_START_START, &dw->data, HDMI_AHB_DMA_START); + + offset += period; + if (offset >= dw->buf_size) +@@ -262,8 +294,8 @@ static void dw_hdmi_start_dma(struct snd_dw_hdmi *dw) + static void dw_hdmi_stop_dma(struct snd_dw_hdmi *dw) + { + /* Disable interrupts before disabling DMA */ +- writeb_relaxed(~0, dw->data.base + HDMI_AHB_DMA_MASK); +- writeb_relaxed(HDMI_AHB_DMA_STOP_STOP, dw->data.base + HDMI_AHB_DMA_STOP); ++ dw_hdmi_writeb_relaxed(~0, &dw->data, HDMI_AHB_DMA_MASK); ++ dw_hdmi_writeb_relaxed(HDMI_AHB_DMA_STOP_STOP, &dw->data, HDMI_AHB_DMA_STOP); + } + + static irqreturn_t snd_dw_hdmi_irq(int irq, void *data) +@@ -272,11 +304,11 @@ static irqreturn_t snd_dw_hdmi_irq(int irq, void *data) + struct snd_pcm_substream *substream; + unsigned stat; + +- stat = readb_relaxed(dw->data.base + HDMI_IH_AHBDMAAUD_STAT0); ++ stat = dw_hdmi_readb_relaxed(&dw->data, HDMI_IH_AHBDMAAUD_STAT0); + if (!stat) + return IRQ_NONE; + +- writeb_relaxed(stat, dw->data.base + HDMI_IH_AHBDMAAUD_STAT0); ++ dw_hdmi_writeb_relaxed(stat, &dw->data, HDMI_IH_AHBDMAAUD_STAT0); + + substream = dw->substream; + if (stat & HDMI_IH_AHBDMAAUD_STAT0_DONE && substream) { +@@ -351,7 +351,6 @@ + { + struct snd_pcm_runtime *runtime = substream->runtime; + struct snd_dw_hdmi *dw = substream->private_data; +- void __iomem *base = dw->data.base; + u8 *eld; + int ret; + +@@ -345,16 +376,16 @@ static int dw_hdmi_open(struct snd_pcm_substream *substream) + return ret; + + /* Clear FIFO */ +- writeb_relaxed(HDMI_AHB_DMA_CONF0_SW_FIFO_RST, +- base + HDMI_AHB_DMA_CONF0); ++ dw_hdmi_writeb_relaxed(HDMI_AHB_DMA_CONF0_SW_FIFO_RST, ++ &dw->data, HDMI_AHB_DMA_CONF0); + + /* Configure interrupt polarities */ +- writeb_relaxed(~0, base + HDMI_AHB_DMA_POL); +- writeb_relaxed(~0, base + HDMI_AHB_DMA_BUFFPOL); ++ dw_hdmi_writeb_relaxed(~0, &dw->data, HDMI_AHB_DMA_POL); ++ dw_hdmi_writeb_relaxed(~0, &dw->data, HDMI_AHB_DMA_BUFFPOL); + + /* Keep interrupts masked, and clear any pending */ +- writeb_relaxed(~0, base + HDMI_AHB_DMA_MASK); +- writeb_relaxed(~0, base + HDMI_IH_AHBDMAAUD_STAT0); ++ dw_hdmi_writeb_relaxed(~0, &dw->data, HDMI_AHB_DMA_MASK); ++ dw_hdmi_writeb_relaxed(~0, &dw->data, HDMI_IH_AHBDMAAUD_STAT0); + + ret = request_irq(dw->data.irq, snd_dw_hdmi_irq, IRQF_SHARED, + "dw-hdmi-audio", dw); +@@ -362,9 +393,9 @@ static int dw_hdmi_open(struct snd_pcm_substream *substream) + return ret; + + /* Un-mute done interrupt */ +- writeb_relaxed(HDMI_IH_MUTE_AHBDMAAUD_STAT0_ALL & +- ~HDMI_IH_MUTE_AHBDMAAUD_STAT0_DONE, +- base + HDMI_IH_MUTE_AHBDMAAUD_STAT0); ++ dw_hdmi_writeb_relaxed(HDMI_IH_MUTE_AHBDMAAUD_STAT0_ALL & ++ ~HDMI_IH_MUTE_AHBDMAAUD_STAT0_DONE, ++ &dw->data, HDMI_IH_MUTE_AHBDMAAUD_STAT0); + + return 0; + } +@@ -374,8 +405,8 @@ static int dw_hdmi_close(struct snd_pcm_substream *substream) + struct snd_dw_hdmi *dw = substream->private_data; + + /* Mute all interrupts */ +- writeb_relaxed(HDMI_IH_MUTE_AHBDMAAUD_STAT0_ALL, +- dw->data.base + HDMI_IH_MUTE_AHBDMAAUD_STAT0); ++ dw_hdmi_writeb_relaxed(HDMI_IH_MUTE_AHBDMAAUD_STAT0_ALL, ++ &dw->data, HDMI_IH_MUTE_AHBDMAAUD_STAT0); + + free_irq(dw->data.irq, dw); + +@@ -416,6 +447,11 @@ static int dw_hdmi_prepare(struct snd_pcm_substream *substream) + HDMI_AHB_DMA_CONF0_INCR8; + threshold = 128; + break; ++ case 0x2a: /* this revision is used in Baikal-M SoC */ ++ conf0 = HDMI_AHB_DMA_CONF0_BURST_MODE | ++ HDMI_AHB_DMA_CONF0_INCR16; ++ threshold = 128; ++ break; + default: + /* NOTREACHED */ + return -EINVAL; +@@ -430,9 +466,9 @@ static int dw_hdmi_prepare(struct snd_pcm_substream *substream) + conf1 = default_hdmi_channel_config[runtime->channels - 2].conf1; + ca = default_hdmi_channel_config[runtime->channels - 2].ca; + +- writeb_relaxed(threshold, dw->data.base + HDMI_AHB_DMA_THRSLD); +- writeb_relaxed(conf0, dw->data.base + HDMI_AHB_DMA_CONF0); +- writeb_relaxed(conf1, dw->data.base + HDMI_AHB_DMA_CONF1); ++ dw_hdmi_writeb_relaxed(threshold, &dw->data, HDMI_AHB_DMA_THRSLD); ++ dw_hdmi_writeb_relaxed(conf0, &dw->data, HDMI_AHB_DMA_CONF0); ++ dw_hdmi_writeb_relaxed(conf1, &dw->data, HDMI_AHB_DMA_CONF1); + + dw_hdmi_set_channel_count(dw->data.hdmi, runtime->channels); + dw_hdmi_set_channel_allocation(dw->data.hdmi, ca); +@@ -524,10 +560,10 @@ static int snd_dw_hdmi_probe(struct platform_device *pdev) + unsigned revision; + int ret; + +- writeb_relaxed(HDMI_IH_MUTE_AHBDMAAUD_STAT0_ALL, +- data->base + HDMI_IH_MUTE_AHBDMAAUD_STAT0); +- revision = readb_relaxed(data->base + HDMI_REVISION_ID); +- if (revision != 0x0a && revision != 0x1a) { ++ dw_hdmi_writeb_relaxed(HDMI_IH_MUTE_AHBDMAAUD_STAT0_ALL, ++ data, HDMI_IH_MUTE_AHBDMAAUD_STAT0); ++ revision = dw_hdmi_readb_relaxed(data, HDMI_REVISION_ID); ++ if (revision != 0x0a && revision != 0x1a && revision != 0x2a) { + dev_err(dev, "dw-hdmi-audio: unknown revision 0x%02x\n", + revision); + return -ENXIO; +diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi-audio.h b/drivers/gpu/drm/bridge/synopsys/dw-hdmi-audio.h +index cb07dc0da5a7..8fb5ebd5a169 100644 +--- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi-audio.h ++++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi-audio.h +@@ -10,6 +10,7 @@ + int irq; + struct dw_hdmi *hdmi; + u8 *(*get_eld)(struct dw_hdmi *hdmi); ++ unsigned reg_offset; + }; + + struct dw_hdmi_i2s_audio_data { +diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c +index f08d0fded61f..069984b26d99 100644 +--- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c ++++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c +@@ -3440,6 +3440,12 @@ + audio.irq = irq; + audio.hdmi = hdmi; + audio.get_eld = hdmi_audio_get_eld; ++ audio.reg_offset = 0; ++ if (of_device_is_compatible(np, "baikal,hdmi")) { ++ audio.reg_offset = 2; ++ dev_info(dev, "setting audio.reg_offset=%d for BE-M1000 SoC\n", ++ audio.reg_offset); ++ } + hdmi->enable_audio = dw_hdmi_ahb_audio_enable; + hdmi->disable_audio = dw_hdmi_ahb_audio_disable; + +diff --git a/drivers/gpu/drm/panel/Makefile b/drivers/gpu/drm/panel/Makefile +index c8132050bcec..5885f78a635d 100644 +--- a/drivers/gpu/drm/panel/Makefile ++++ b/drivers/gpu/drm/panel/Makefile +@@ -7,6 +7,7 @@ obj-$(CONFIG_DRM_PANEL_BOE_TV101WUM_NL6) += panel-boe-tv101wum-nl6.o + obj-$(CONFIG_DRM_PANEL_DSI_CM) += panel-dsi-cm.o + obj-$(CONFIG_DRM_PANEL_LVDS) += panel-lvds.o + obj-$(CONFIG_DRM_PANEL_SIMPLE) += panel-simple.o ++obj-$(CONFIG_DRM_PANEL_SIMPLE) += panel-simple-dsi.o + obj-$(CONFIG_DRM_PANEL_ELIDA_KD35T133) += panel-elida-kd35t133.o + obj-$(CONFIG_DRM_PANEL_FEIXIN_K101_IM2BA02) += panel-feixin-k101-im2ba02.o + obj-$(CONFIG_DRM_PANEL_FEIYANG_FY07024DI26A30D) += panel-feiyang-fy07024di26a30d.o +diff --git a/drivers/gpu/drm/panel/panel-simple-dsi.c b/drivers/gpu/drm/panel/panel-simple-dsi.c +new file mode 100644 +index 000000000000..df793e50186a +--- /dev/null ++++ b/drivers/gpu/drm/panel/panel-simple-dsi.c +@@ -0,0 +1,739 @@ ++/* ++ * Copyright (C) 2021 ++ * This simple dsi driver porting from rock-chip panel-simple.c on linux-4.4 ++ */ ++ ++#include ++#include ++#include ++#include ++#include ++#include ++ ++#include ++#include ++#include ++ ++#include