fs: eliminate YAFFS2 implementation

Upstream development stopped 2012.
Linux eliminated YAFFS2 in 2010.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Reviewed-by: Tom Rini <trini@konsulko.com>

cmd/Kconfig

@@ -2881,17 +2881,6 @@ config MTDPARTS_DEFAULT
 	  Defines a default MTD partitioning scheme in the Linux MTD command
 	  line partitions format
 
-config CMD_YAFFS2
-	bool "yaffs2 - Access of YAFFS2 filesystem"
-	depends on YAFFS2
-	default y
-	help
-	  This provides commands for accessing a YAFFS2 filesystem. Yet
-	  Another Flash Filesystem 2 is a filesystem designed specifically
-	  for NAND flash. It incorporates bad-block management and ensures
-	  that device writes are sequential regardless of filesystem
-	  activity.
-
 config CMD_ZFS
 	bool "zfs - Access of ZFS filesystem"
 	help

cmd/Makefile

@@ -214,7 +214,6 @@ obj-$(CONFIG_CMD_THOR_DOWNLOAD) += thordown.o
 obj-$(CONFIG_CMD_VBE) += vbe.o
 obj-$(CONFIG_CMD_XIMG) += ximg.o
 obj-$(CONFIG_CMD_XXD) += xxd.o
-obj-$(CONFIG_CMD_YAFFS2) += yaffs2.o
 obj-$(CONFIG_CMD_SPL) += spl.o
 obj-$(CONFIG_CMD_W1) += w1.o
 obj-$(CONFIG_CMD_ZIP) += zip.o

cmd/yaffs2.c

@@ -1,324 +0,0 @@
-/* Yaffs commands.
- * Modified by Charles Manning by adding ydevconfig command.
- *
- * Use ydevconfig to configure a mountpoint before use.
- * For example:
- *  # Configure mountpt xxx using nand device 0 using blocks 100-500
- *  ydevconfig xxx 0 100 500
- *  # Mount it
- *  ymount xxx
- *  # yls, yrdm etc
- *  yls -l xxx
- *  yrdm xxx/boot-image 82000000
- *  ...
- */
-
-#include <config.h>
-#include <command.h>
-
-#ifdef YAFFS2_DEBUG
-#define PRINTF(fmt, args...) printf(fmt, ##args)
-#else
-#define PRINTF(fmt, args...) do { } while (0)
-#endif
-
-extern void cmd_yaffs_dev_ls(void);
-extern void cmd_yaffs_tracemask(unsigned set, unsigned mask);
-extern void cmd_yaffs_devconfig(char *mp, int flash_dev,
-				int start_block, int end_block);
-extern void cmd_yaffs_mount(char *mp);
-extern void cmd_yaffs_umount(char *mp);
-extern void cmd_yaffs_read_file(char *fn);
-extern void cmd_yaffs_write_file(char *fn, char bval, int sizeOfFile);
-extern void cmd_yaffs_ls(const char *mountpt, int longlist);
-extern void cmd_yaffs_mwrite_file(char *fn, char *addr, int size);
-extern void cmd_yaffs_mread_file(char *fn, char *addr);
-extern void cmd_yaffs_mkdir(const char *dir);
-extern void cmd_yaffs_rmdir(const char *dir);
-extern void cmd_yaffs_rm(const char *path);
-extern void cmd_yaffs_mv(const char *oldPath, const char *newPath);
-
-extern int yaffs_dump_dev(const char *path);
-
-/* ytrace - show/set yaffs trace mask */
-int do_ytrace(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
-{
-	if (argc > 1)
-		cmd_yaffs_tracemask(1, simple_strtol(argv[1], NULL, 16));
-	else
-		cmd_yaffs_tracemask(0, 0);
-
-	return 0;
-}
-
-/* ydevls - lists yaffs mount points. */
-int do_ydevls(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
-{
-	cmd_yaffs_dev_ls();
-
-	return 0;
-}
-
-/* ydevconfig mount_pt mtd_dev_num start_block end_block */
-int do_ydevconfig(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
-{
-	char *mtpoint;
-	int mtd_dev;
-	int start_block;
-	int end_block;
-
-	if (argc != 5) {
-		printf
-		    ("Bad arguments: ydevconfig mount_pt mtd_dev start_block end_block\n");
-		return -1;
-	}
-
-	mtpoint = argv[1];
-	mtd_dev = simple_strtol(argv[2], NULL, 16);
-	start_block = simple_strtol(argv[3], NULL, 16);
-	end_block = simple_strtol(argv[4], NULL, 16);
-
-	cmd_yaffs_devconfig(mtpoint, mtd_dev, start_block, end_block);
-
-	return 0;
-}
-
-int do_ymount(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
-{
-	char *mtpoint;
-
-	if (argc != 2) {
-		printf("Bad arguments: ymount mount_pt\n");
-		return -1;
-	}
-
-	mtpoint = argv[1];
-	printf("Mounting yaffs2 mount point %s\n", mtpoint);
-
-	cmd_yaffs_mount(mtpoint);
-
-	return 0;
-}
-
-int do_yumount(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
-{
-	char *mtpoint;
-
-	if (argc != 2) {
-		printf("Bad arguments: yumount mount_pt\n");
-		return -1;
-	}
-
-	mtpoint = argv[1];
-	printf("Unmounting yaffs2 mount point %s\n", mtpoint);
-	cmd_yaffs_umount(mtpoint);
-
-	return 0;
-}
-
-int do_yls(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
-{
-	char *dirname;
-
-	if (argc < 2 || argc > 3 || (argc == 3 && strcmp(argv[1], "-l"))) {
-		printf("Bad arguments: yls [-l] dir\n");
-		return -1;
-	}
-
-	dirname = argv[argc - 1];
-
-	cmd_yaffs_ls(dirname, (argc > 2) ? 1 : 0);
-
-	return 0;
-}
-
-int do_yrd(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
-{
-	char *filename;
-
-	if (argc != 2) {
-		printf("Bad arguments: yrd file_name\n");
-		return -1;
-	}
-
-	filename = argv[1];
-
-	printf("Reading file %s ", filename);
-
-	cmd_yaffs_read_file(filename);
-
-	printf("done\n");
-	return 0;
-}
-
-int do_ywr(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
-{
-	char *filename;
-	ulong value;
-	ulong numValues;
-
-	if (argc != 4) {
-		printf("Bad arguments: ywr file_name value n_values\n");
-		return -1;
-	}
-
-	filename = argv[1];
-	value = hextoul(argv[2], NULL);
-	numValues = hextoul(argv[3], NULL);
-
-	printf("Writing value (%lx) %lx times to %s... ", value, numValues,
-	       filename);
-
-	cmd_yaffs_write_file(filename, value, numValues);
-
-	printf("done\n");
-	return 0;
-}
-
-int do_yrdm(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
-{
-	char *filename;
-	ulong addr;
-
-	if (argc != 3) {
-		printf("Bad arguments: yrdm file_name addr\n");
-		return -1;
-	}
-
-	filename = argv[1];
-	addr = hextoul(argv[2], NULL);
-
-	cmd_yaffs_mread_file(filename, (char *)addr);
-
-	return 0;
-}
-
-int do_ywrm(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
-{
-	char *filename;
-	ulong addr;
-	ulong size;
-
-	if (argc != 4) {
-		printf("Bad arguments: ywrm file_name addr size\n");
-		return -1;
-	}
-
-	filename = argv[1];
-	addr = hextoul(argv[2], NULL);
-	size = hextoul(argv[3], NULL);
-
-	cmd_yaffs_mwrite_file(filename, (char *)addr, size);
-
-	return 0;
-}
-
-int do_ymkdir(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
-{
-	char *dirname;
-
-	if (argc != 2) {
-		printf("Bad arguments: ymkdir dir_name\n");
-		return -1;
-	}
-
-	dirname = argv[1];
-	cmd_yaffs_mkdir(dirname);
-
-	return 0;
-}
-
-int do_yrmdir(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
-{
-	char *dirname;
-
-	if (argc != 2) {
-		printf("Bad arguments: yrmdir dir_name\n");
-		return -1;
-	}
-
-	dirname = argv[1];
-	cmd_yaffs_rmdir(dirname);
-
-	return 0;
-}
-
-int do_yrm(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
-{
-	char *name;
-
-	if (argc != 2) {
-		printf("Bad arguments: yrm name\n");
-		return -1;
-	}
-
-	name = argv[1];
-
-	cmd_yaffs_rm(name);
-
-	return 0;
-}
-
-int do_ymv(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
-{
-	char *oldPath;
-	char *newPath;
-
-	if (argc != 3) {
-		printf("Bad arguments: ymv old_path new_path\n");
-		return -1;
-	}
-
-	oldPath = argv[1];
-	newPath = argv[2];
-
-	cmd_yaffs_mv(newPath, oldPath);
-
-	return 0;
-}
-
-U_BOOT_CMD(ytrace, 2, 0, do_ytrace,
-	   "show/set yaffs trace mask",
-	   "[new_mask]  show/set yaffs trace mask");
-
-U_BOOT_CMD(ydevls, 1, 0, do_ydevls,
-	   "list yaffs mount points", "list yaffs mount points");
-
-U_BOOT_CMD(ydevconfig, 5, 0, do_ydevconfig,
-	   "configure yaffs mount point",
-	   "mtpoint mtd_id start_block end_block   configures a yaffs2 mount point");
-
-U_BOOT_CMD(ymount, 2, 0, do_ymount,
-	   "mount yaffs", "mtpoint  mounts a yaffs2 mount point");
-
-U_BOOT_CMD(yumount, 2, 0, do_yumount,
-	   "unmount yaffs", "mtpoint  unmounts a yaffs2 mount point");
-
-U_BOOT_CMD(yls, 3, 0, do_yls, "yaffs ls", "[-l] dirname");
-
-U_BOOT_CMD(yrd, 2, 0, do_yrd,
-	   "read file from yaffs", "path   read file from yaffs");
-
-U_BOOT_CMD(ywr, 4, 0, do_ywr,
-	   "write file to yaffs",
-	   "filename value num_vlues   write values to yaffs file");
-
-U_BOOT_CMD(yrdm, 3, 0, do_yrdm,
-	   "read file to memory from yaffs",
-	   "filename offset    reads yaffs file into memory");
-
-U_BOOT_CMD(ywrm, 4, 0, do_ywrm,
-	   "write file from memory to yaffs",
-	   "filename offset size  writes memory to yaffs file");
-
-U_BOOT_CMD(ymkdir, 2, 0, do_ymkdir,
-	   "YAFFS mkdir", "dir    create a yaffs directory");
-
-U_BOOT_CMD(yrmdir, 2, 0, do_yrmdir,
-	   "YAFFS rmdir", "dirname   removes a yaffs directory");
-
-U_BOOT_CMD(yrm, 2, 0, do_yrm, "YAFFS rm", "path   removes a yaffs file");
-
-U_BOOT_CMD(ymv, 4, 0, do_ymv,
-	   "YAFFS mv",
-	   "old_path new_path   moves/rename files within a yaffs mount point");

fs/Kconfig

@@ -20,8 +20,6 @@ source "fs/ubifs/Kconfig"
 
 source "fs/cramfs/Kconfig"
 
-source "fs/yaffs2/Kconfig"
-
 source "fs/squashfs/Kconfig"
 
 source "fs/erofs/Kconfig"

fs/Makefile

@@ -22,7 +22,6 @@ obj-$(CONFIG_FS_JFFS2) += jffs2/
 obj-$(CONFIG_SANDBOX) += sandbox/
 obj-$(CONFIG_SEMIHOSTING) += semihostingfs.o
 obj-$(CONFIG_CMD_UBIFS) += ubifs/
-obj-$(CONFIG_YAFFS2) += yaffs2/
 obj-$(CONFIG_CMD_ZFS) += zfs/
 obj-$(CONFIG_FS_SQUASHFS) += squashfs/
 obj-$(CONFIG_FS_EROFS) += erofs/

fs/yaffs2/Kconfig

@@ -1,19 +0,0 @@
-config YAFFS_DIRECT
-	bool
-
-config YAFFS_PROVIDE_DEFS
-	bool
-
-config YAFFSFS_PROVIDE_VALUES
-	bool
-
-config YAFFS2
-	bool "YAFFS2 filesystem support"
-	select YAFFS_DIRECT
-	select YAFFS_PROVIDE_DEFS
-	select YAFFSFS_PROVIDE_VALUES
-	help
-	  This provides access to YAFFS2 filesystems. Yet Another Flash
-	  Filesystem 2 is a filesystem designed specifically for NAND flash.
-	  It incorporates bad-block management and ensures that device
-	  writes are sequential regardless of filesystem activity.

fs/yaffs2/Makefile

@@ -1,18 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0
-# Makefile for YAFFS direct test
-# YAFFS: Yet another Flash File System. A NAND-flash specific file system.
-#
-# Copyright (C) 2003 Aleph One Ltd.
-#
-#
-# Created by Charles Manning <charles@aleph1.co.uk>
-#
-#
-
-obj-y := \
-	yaffs_allocator.o yaffs_attribs.o yaffs_bitmap.o yaffs_uboot_glue.o\
-	yaffs_checkptrw.o yaffs_ecc.o yaffs_error.o \
-	yaffsfs.o yaffs_guts.o yaffs_nameval.o yaffs_nand.o\
-	yaffs_packedtags1.o yaffs_packedtags2.o yaffs_qsort.o \
-	yaffs_summary.o yaffs_tagscompat.o yaffs_verify.o yaffs_yaffs1.o \
-	yaffs_yaffs2.o yaffs_mtdif.o yaffs_mtdif2.o

fs/yaffs2/yaffs_allocator.c

@@ -1,357 +0,0 @@
-/*
- * YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
- *
- * Copyright (C) 2002-2011 Aleph One Ltd.
- *   for Toby Churchill Ltd and Brightstar Engineering
- *
- * Created by Charles Manning <charles@aleph1.co.uk>
- *
- * 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 "yaffs_allocator.h"
-#include "yaffs_guts.h"
-#include "yaffs_trace.h"
-#include "yportenv.h"
-#include <dm/devres.h>
-
-/*
- * Each entry in yaffs_tnode_list and yaffs_obj_list hold blocks
- * of approx 100 objects that are themn allocated singly.
- * This is basically a simplified slab allocator.
- *
- * We don't use the Linux slab allocator because slab does not allow
- * us to dump all the objects in one hit when we do a umount and tear
- * down  all the tnodes and objects. slab requires that we first free
- * the individual objects.
- *
- * Once yaffs has been mainlined I shall try to motivate for a change
- * to slab to provide the extra features we need here.
- */
-
-struct yaffs_tnode_list {
-	struct yaffs_tnode_list *next;
-	struct yaffs_tnode *tnodes;
-};
-
-struct yaffs_obj_list {
-	struct yaffs_obj_list *next;
-	struct yaffs_obj *objects;
-};
-
-struct yaffs_allocator {
-	int n_tnodes_created;
-	struct yaffs_tnode *free_tnodes;
-	int n_free_tnodes;
-	struct yaffs_tnode_list *alloc_tnode_list;
-
-	int n_obj_created;
-	struct list_head free_objs;
-	int n_free_objects;
-
-	struct yaffs_obj_list *allocated_obj_list;
-};
-
-static void yaffs_deinit_raw_tnodes(struct yaffs_dev *dev)
-{
-	struct yaffs_allocator *allocator =
-	    (struct yaffs_allocator *)dev->allocator;
-	struct yaffs_tnode_list *tmp;
-
-	if (!allocator) {
-		BUG();
-		return;
-	}
-
-	while (allocator->alloc_tnode_list) {
-		tmp = allocator->alloc_tnode_list->next;
-
-		kfree(allocator->alloc_tnode_list->tnodes);
-		kfree(allocator->alloc_tnode_list);
-		allocator->alloc_tnode_list = tmp;
-	}
-
-	allocator->free_tnodes = NULL;
-	allocator->n_free_tnodes = 0;
-	allocator->n_tnodes_created = 0;
-}
-
-static void yaffs_init_raw_tnodes(struct yaffs_dev *dev)
-{
-	struct yaffs_allocator *allocator = dev->allocator;
-
-	if (!allocator) {
-		BUG();
-		return;
-	}
-
-	allocator->alloc_tnode_list = NULL;
-	allocator->free_tnodes = NULL;
-	allocator->n_free_tnodes = 0;
-	allocator->n_tnodes_created = 0;
-}
-
-static int yaffs_create_tnodes(struct yaffs_dev *dev, int n_tnodes)
-{
-	struct yaffs_allocator *allocator =
-	    (struct yaffs_allocator *)dev->allocator;
-	int i;
-	struct yaffs_tnode *new_tnodes;
-	u8 *mem;
-	struct yaffs_tnode *curr;
-	struct yaffs_tnode *next;
-	struct yaffs_tnode_list *tnl;
-
-	if (!allocator) {
-		BUG();
-		return YAFFS_FAIL;
-	}
-
-	if (n_tnodes < 1)
-		return YAFFS_OK;
-
-	/* make these things */
-	new_tnodes = kmalloc(n_tnodes * dev->tnode_size, GFP_NOFS);
-	mem = (u8 *) new_tnodes;
-
-	if (!new_tnodes) {
-		yaffs_trace(YAFFS_TRACE_ERROR,
-			"yaffs: Could not allocate Tnodes");
-		return YAFFS_FAIL;
-	}
-
-	/* New hookup for wide tnodes */
-	for (i = 0; i < n_tnodes - 1; i++) {
-		curr = (struct yaffs_tnode *)&mem[i * dev->tnode_size];
-		next = (struct yaffs_tnode *)&mem[(i + 1) * dev->tnode_size];
-		curr->internal[0] = next;
-	}
-
-	curr = (struct yaffs_tnode *)&mem[(n_tnodes - 1) * dev->tnode_size];
-	curr->internal[0] = allocator->free_tnodes;
-	allocator->free_tnodes = (struct yaffs_tnode *)mem;
-
-	allocator->n_free_tnodes += n_tnodes;
-	allocator->n_tnodes_created += n_tnodes;
-
-	/* Now add this bunch of tnodes to a list for freeing up.
-	 * NB If we can't add this to the management list it isn't fatal
-	 * but it just means we can't free this bunch of tnodes later.
-	 */
-	tnl = kmalloc(sizeof(struct yaffs_tnode_list), GFP_NOFS);
-	if (!tnl) {
-		yaffs_trace(YAFFS_TRACE_ERROR,
-			"Could not add tnodes to management list");
-		return YAFFS_FAIL;
-	} else {
-		tnl->tnodes = new_tnodes;
-		tnl->next = allocator->alloc_tnode_list;
-		allocator->alloc_tnode_list = tnl;
-	}
-
-	yaffs_trace(YAFFS_TRACE_ALLOCATE, "Tnodes added");
-
-	return YAFFS_OK;
-}
-
-struct yaffs_tnode *yaffs_alloc_raw_tnode(struct yaffs_dev *dev)
-{
-	struct yaffs_allocator *allocator =
-	    (struct yaffs_allocator *)dev->allocator;
-	struct yaffs_tnode *tn = NULL;
-
-	if (!allocator) {
-		BUG();
-		return NULL;
-	}
-
-	/* If there are none left make more */
-	if (!allocator->free_tnodes)
-		yaffs_create_tnodes(dev, YAFFS_ALLOCATION_NTNODES);
-
-	if (allocator->free_tnodes) {
-		tn = allocator->free_tnodes;
-		allocator->free_tnodes = allocator->free_tnodes->internal[0];
-		allocator->n_free_tnodes--;
-	}
-
-	return tn;
-}
-
-/* FreeTnode frees up a tnode and puts it back on the free list */
-void yaffs_free_raw_tnode(struct yaffs_dev *dev, struct yaffs_tnode *tn)
-{
-	struct yaffs_allocator *allocator = dev->allocator;
-
-	if (!allocator) {
-		BUG();
-		return;
-	}
-
-	if (tn) {
-		tn->internal[0] = allocator->free_tnodes;
-		allocator->free_tnodes = tn;
-		allocator->n_free_tnodes++;
-	}
-	dev->checkpoint_blocks_required = 0;	/* force recalculation */
-}
-
-/*--------------- yaffs_obj alloaction ------------------------
- *
- * Free yaffs_objs are stored in a list using obj->siblings.
- * The blocks of allocated objects are stored in a linked list.
- */
-
-static void yaffs_init_raw_objs(struct yaffs_dev *dev)
-{
-	struct yaffs_allocator *allocator = dev->allocator;
-
-	if (!allocator) {
-		BUG();
-		return;
-	}
-
-	allocator->allocated_obj_list = NULL;
-	INIT_LIST_HEAD(&allocator->free_objs);
-	allocator->n_free_objects = 0;
-}
-
-static void yaffs_deinit_raw_objs(struct yaffs_dev *dev)
-{
-	struct yaffs_allocator *allocator = dev->allocator;
-	struct yaffs_obj_list *tmp;
-
-	if (!allocator) {
-		BUG();
-		return;
-	}
-
-	while (allocator->allocated_obj_list) {
-		tmp = allocator->allocated_obj_list->next;
-		kfree(allocator->allocated_obj_list->objects);
-		kfree(allocator->allocated_obj_list);
-		allocator->allocated_obj_list = tmp;
-	}
-
-	INIT_LIST_HEAD(&allocator->free_objs);
-	allocator->n_free_objects = 0;
-	allocator->n_obj_created = 0;
-}
-
-static int yaffs_create_free_objs(struct yaffs_dev *dev, int n_obj)
-{
-	struct yaffs_allocator *allocator = dev->allocator;
-	int i;
-	struct yaffs_obj *new_objs;
-	struct yaffs_obj_list *list;
-
-	if (!allocator) {
-		BUG();
-		return YAFFS_FAIL;
-	}
-
-	if (n_obj < 1)
-		return YAFFS_OK;
-
-	/* make these things */
-	new_objs = kmalloc(n_obj * sizeof(struct yaffs_obj), GFP_NOFS);
-	list = kmalloc(sizeof(struct yaffs_obj_list), GFP_NOFS);
-
-	if (!new_objs || !list) {
-		kfree(new_objs);
-		new_objs = NULL;
-		kfree(list);
-		list = NULL;
-		yaffs_trace(YAFFS_TRACE_ALLOCATE,
-			"Could not allocate more objects");
-		return YAFFS_FAIL;
-	}
-
-	/* Hook them into the free list */
-	for (i = 0; i < n_obj; i++)
-		list_add(&new_objs[i].siblings, &allocator->free_objs);
-
-	allocator->n_free_objects += n_obj;
-	allocator->n_obj_created += n_obj;
-
-	/* Now add this bunch of Objects to a list for freeing up. */
-
-	list->objects = new_objs;
-	list->next = allocator->allocated_obj_list;
-	allocator->allocated_obj_list = list;
-
-	return YAFFS_OK;
-}
-
-struct yaffs_obj *yaffs_alloc_raw_obj(struct yaffs_dev *dev)
-{
-	struct yaffs_obj *obj = NULL;
-	struct list_head *lh;
-	struct yaffs_allocator *allocator = dev->allocator;
-
-	if (!allocator) {
-		BUG();
-		return obj;
-	}
-
-	/* If there are none left make more */
-	if (list_empty(&allocator->free_objs))
-		yaffs_create_free_objs(dev, YAFFS_ALLOCATION_NOBJECTS);
-
-	if (!list_empty(&allocator->free_objs)) {
-		lh = allocator->free_objs.next;
-		obj = list_entry(lh, struct yaffs_obj, siblings);
-		list_del_init(lh);
-		allocator->n_free_objects--;
-	}
-
-	return obj;
-}
-
-void yaffs_free_raw_obj(struct yaffs_dev *dev, struct yaffs_obj *obj)
-{
-
-	struct yaffs_allocator *allocator = dev->allocator;
-
-	if (!allocator) {
-		BUG();
-		return;
-	}
-
-	/* Link into the free list. */
-	list_add(&obj->siblings, &allocator->free_objs);
-	allocator->n_free_objects++;
-}
-
-void yaffs_deinit_raw_tnodes_and_objs(struct yaffs_dev *dev)
-{
-
-	if (!dev->allocator) {
-		BUG();
-		return;
-	}
-
-	yaffs_deinit_raw_tnodes(dev);
-	yaffs_deinit_raw_objs(dev);
-	kfree(dev->allocator);
-	dev->allocator = NULL;
-}
-
-void yaffs_init_raw_tnodes_and_objs(struct yaffs_dev *dev)
-{
-	struct yaffs_allocator *allocator;
-
-	if (dev->allocator) {
-		BUG();
-		return;
-	}
-
-	allocator = kmalloc(sizeof(struct yaffs_allocator), GFP_NOFS);
-	if (allocator) {
-		dev->allocator = allocator;
-		yaffs_init_raw_tnodes(dev);
-		yaffs_init_raw_objs(dev);
-	}
-}

fs/yaffs2/yaffs_allocator.h

@@ -1,30 +0,0 @@
-/*
- * YAFFS: Yet another Flash File System . A NAND-flash specific file system.
- *
- * Copyright (C) 2002-2011 Aleph One Ltd.
- *   for Toby Churchill Ltd and Brightstar Engineering
- *
- * Created by Charles Manning <charles@aleph1.co.uk>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU Lesser General Public License version 2.1 as
- * published by the Free Software Foundation.
- *
- * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL.
- */
-
-#ifndef __YAFFS_ALLOCATOR_H__
-#define __YAFFS_ALLOCATOR_H__
-
-#include "yaffs_guts.h"
-
-void yaffs_init_raw_tnodes_and_objs(struct yaffs_dev *dev);
-void yaffs_deinit_raw_tnodes_and_objs(struct yaffs_dev *dev);
-
-struct yaffs_tnode *yaffs_alloc_raw_tnode(struct yaffs_dev *dev);
-void yaffs_free_raw_tnode(struct yaffs_dev *dev, struct yaffs_tnode *tn);
-
-struct yaffs_obj *yaffs_alloc_raw_obj(struct yaffs_dev *dev);
-void yaffs_free_raw_obj(struct yaffs_dev *dev, struct yaffs_obj *obj);
-
-#endif

fs/yaffs2/yaffs_attribs.c

@@ -1,150 +0,0 @@
-/*
- * YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
- *
- * Copyright (C) 2002-2011 Aleph One Ltd.
- *   for Toby Churchill Ltd and Brightstar Engineering
- *
- * Created by Charles Manning <charles@aleph1.co.uk>
- *
- * 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 "yaffs_attribs.h"
-
-void yaffs_load_attribs(struct yaffs_obj *obj, struct yaffs_obj_hdr *oh)
-{
-	obj->yst_uid = oh->yst_uid;
-	obj->yst_gid = oh->yst_gid;
-	obj->yst_atime = oh->yst_atime;
-	obj->yst_mtime = oh->yst_mtime;
-	obj->yst_ctime = oh->yst_ctime;
-	obj->yst_rdev = oh->yst_rdev;
-}
-
-void yaffs_load_attribs_oh(struct yaffs_obj_hdr *oh, struct yaffs_obj *obj)
-{
-#ifdef CONFIG_YAFFS_WINCE
-		oh->win_atime[0] = obj->win_atime[0];
-		oh->win_ctime[0] = obj->win_ctime[0];
-		oh->win_mtime[0] = obj->win_mtime[0];
-		oh->win_atime[1] = obj->win_atime[1];
-		oh->win_ctime[1] = obj->win_ctime[1];
-		oh->win_mtime[1] = obj->win_mtime[1];
-#else
-		oh->yst_uid = obj->yst_uid;
-		oh->yst_gid = obj->yst_gid;
-		oh->yst_atime = obj->yst_atime;
-		oh->yst_mtime = obj->yst_mtime;
-		oh->yst_ctime = obj->yst_ctime;
-		oh->yst_rdev = obj->yst_rdev;
-#endif
-
-}
-
-void yaffs_attribs_init(struct yaffs_obj *obj, u32 gid, u32 uid, u32 rdev)
-{
-
-#ifdef CONFIG_YAFFS_WINCE
-		yfsd_win_file_time_now(obj->win_atime);
-		obj->win_ctime[0] = obj->win_mtime[0] = obj->win_atime[0];
-		obj->win_ctime[1] = obj->win_mtime[1] = obj->win_atime[1];
-
-#else
-	yaffs_load_current_time(obj, 1, 1);
-	obj->yst_rdev = rdev;
-	obj->yst_uid = uid;
-	obj->yst_gid = gid;
-#endif
-}
-
-void yaffs_load_current_time(struct yaffs_obj *obj, int do_a, int do_c)
-{
-#ifdef CONFIG_YAFFS_WINCE
-		yfsd_win_file_time_now(the_obj->win_atime);
-		the_obj->win_ctime[0] = the_obj->win_mtime[0] =
-		    the_obj->win_atime[0];
-		the_obj->win_ctime[1] = the_obj->win_mtime[1] =
-		    the_obj->win_atime[1];
-
-#else
-
-	obj->yst_mtime = Y_CURRENT_TIME;
-	if (do_a)
-		obj->yst_atime = obj->yst_atime;
-	if (do_c)
-		obj->yst_ctime = obj->yst_atime;
-#endif
-}
-
-loff_t yaffs_get_file_size(struct yaffs_obj *obj)
-{
-	YCHAR *alias = NULL;
-	obj = yaffs_get_equivalent_obj(obj);
-
-	switch (obj->variant_type) {
-	case YAFFS_OBJECT_TYPE_FILE:
-		return obj->variant.file_variant.file_size;
-	case YAFFS_OBJECT_TYPE_SYMLINK:
-		alias = obj->variant.symlink_variant.alias;
-		if (!alias)
-			return 0;
-		return yaffs_strnlen(alias, YAFFS_MAX_ALIAS_LENGTH);
-	default:
-		return 0;
-	}
-}
-
-int yaffs_set_attribs(struct yaffs_obj *obj, struct iattr *attr)
-{
-	unsigned int valid = attr->ia_valid;
-
-	if (valid & ATTR_MODE)
-		obj->yst_mode = attr->ia_mode;
-	if (valid & ATTR_UID)
-		obj->yst_uid = attr->ia_uid;
-	if (valid & ATTR_GID)
-		obj->yst_gid = attr->ia_gid;
-
-	if (valid & ATTR_ATIME)
-		obj->yst_atime = Y_TIME_CONVERT(attr->ia_atime);
-	if (valid & ATTR_CTIME)
-		obj->yst_ctime = Y_TIME_CONVERT(attr->ia_ctime);
-	if (valid & ATTR_MTIME)
-		obj->yst_mtime = Y_TIME_CONVERT(attr->ia_mtime);
-
-	if (valid & ATTR_SIZE)
-		yaffs_resize_file(obj, attr->ia_size);
-
-	yaffs_update_oh(obj, NULL, 1, 0, 0, NULL);
-
-	return YAFFS_OK;
-
-}
-
-int yaffs_get_attribs(struct yaffs_obj *obj, struct iattr *attr)
-{
-	unsigned int valid = 0;
-
-	attr->ia_mode = obj->yst_mode;
-	valid |= ATTR_MODE;
-	attr->ia_uid = obj->yst_uid;
-	valid |= ATTR_UID;
-	attr->ia_gid = obj->yst_gid;
-	valid |= ATTR_GID;
-
-	Y_TIME_CONVERT(attr->ia_atime) = obj->yst_atime;
-	valid |= ATTR_ATIME;
-	Y_TIME_CONVERT(attr->ia_ctime) = obj->yst_ctime;
-	valid |= ATTR_CTIME;
-	Y_TIME_CONVERT(attr->ia_mtime) = obj->yst_mtime;
-	valid |= ATTR_MTIME;
-
-	attr->ia_size = yaffs_get_file_size(obj);
-	valid |= ATTR_SIZE;
-
-	attr->ia_valid = valid;
-
-	return YAFFS_OK;
-}

fs/yaffs2/yaffs_attribs.h

@@ -1,28 +0,0 @@
-/*
- * YAFFS: Yet another Flash File System . A NAND-flash specific file system.
- *
- * Copyright (C) 2002-2011 Aleph One Ltd.
- *   for Toby Churchill Ltd and Brightstar Engineering
- *
- * Created by Charles Manning <charles@aleph1.co.uk>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU Lesser General Public License version 2.1 as
- * published by the Free Software Foundation.
- *
- * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL.
- */
-
-#ifndef __YAFFS_ATTRIBS_H__
-#define __YAFFS_ATTRIBS_H__
-
-#include "yaffs_guts.h"
-
-void yaffs_load_attribs(struct yaffs_obj *obj, struct yaffs_obj_hdr *oh);
-void yaffs_load_attribs_oh(struct yaffs_obj_hdr *oh, struct yaffs_obj *obj);
-void yaffs_attribs_init(struct yaffs_obj *obj, u32 gid, u32 uid, u32 rdev);
-void yaffs_load_current_time(struct yaffs_obj *obj, int do_a, int do_c);
-int yaffs_set_attribs(struct yaffs_obj *obj, struct iattr *attr);
-int yaffs_get_attribs(struct yaffs_obj *obj, struct iattr *attr);
-
-#endif

fs/yaffs2/yaffs_bitmap.c

@@ -1,97 +0,0 @@
-/*
- * YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
- *
- * Copyright (C) 2002-2011 Aleph One Ltd.
- *   for Toby Churchill Ltd and Brightstar Engineering
- *
- * Created by Charles Manning <charles@aleph1.co.uk>
- *
- * 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 "yaffs_bitmap.h"
-#include "yaffs_trace.h"
-/*
- * Chunk bitmap manipulations
- */
-
-static inline u8 *yaffs_block_bits(struct yaffs_dev *dev, int blk)
-{
-	if (blk < dev->internal_start_block || blk > dev->internal_end_block) {
-		yaffs_trace(YAFFS_TRACE_ERROR,
-			"BlockBits block %d is not valid",
-			blk);
-		BUG();
-	}
-	return dev->chunk_bits +
-	    (dev->chunk_bit_stride * (blk - dev->internal_start_block));
-}
-
-void yaffs_verify_chunk_bit_id(struct yaffs_dev *dev, int blk, int chunk)
-{
-	if (blk < dev->internal_start_block || blk > dev->internal_end_block ||
-	    chunk < 0 || chunk >= dev->param.chunks_per_block) {
-		yaffs_trace(YAFFS_TRACE_ERROR,
-			"Chunk Id (%d:%d) invalid",
-			blk, chunk);
-		BUG();
-	}
-}
-
-void yaffs_clear_chunk_bits(struct yaffs_dev *dev, int blk)
-{
-	u8 *blk_bits = yaffs_block_bits(dev, blk);
-
-	memset(blk_bits, 0, dev->chunk_bit_stride);
-}
-
-void yaffs_clear_chunk_bit(struct yaffs_dev *dev, int blk, int chunk)
-{
-	u8 *blk_bits = yaffs_block_bits(dev, blk);
-
-	yaffs_verify_chunk_bit_id(dev, blk, chunk);
-	blk_bits[chunk / 8] &= ~(1 << (chunk & 7));
-}
-
-void yaffs_set_chunk_bit(struct yaffs_dev *dev, int blk, int chunk)
-{
-	u8 *blk_bits = yaffs_block_bits(dev, blk);
-
-	yaffs_verify_chunk_bit_id(dev, blk, chunk);
-	blk_bits[chunk / 8] |= (1 << (chunk & 7));
-}
-
-int yaffs_check_chunk_bit(struct yaffs_dev *dev, int blk, int chunk)
-{
-	u8 *blk_bits = yaffs_block_bits(dev, blk);
-
-	yaffs_verify_chunk_bit_id(dev, blk, chunk);
-	return (blk_bits[chunk / 8] & (1 << (chunk & 7))) ? 1 : 0;
-}
-
-int yaffs_still_some_chunks(struct yaffs_dev *dev, int blk)
-{
-	u8 *blk_bits = yaffs_block_bits(dev, blk);
-	int i;
-
-	for (i = 0; i < dev->chunk_bit_stride; i++) {
-		if (*blk_bits)
-			return 1;
-		blk_bits++;
-	}
-	return 0;
-}
-
-int yaffs_count_chunk_bits(struct yaffs_dev *dev, int blk)
-{
-	u8 *blk_bits = yaffs_block_bits(dev, blk);
-	int i;
-	int n = 0;
-
-	for (i = 0; i < dev->chunk_bit_stride; i++, blk_bits++)
-		n += hweight8(*blk_bits);
-
-	return n;
-}

fs/yaffs2/yaffs_bitmap.h

@@ -1,33 +0,0 @@
-/*
- * YAFFS: Yet another Flash File System . A NAND-flash specific file system.
- *
- * Copyright (C) 2002-2011 Aleph One Ltd.
- *   for Toby Churchill Ltd and Brightstar Engineering
- *
- * Created by Charles Manning <charles@aleph1.co.uk>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU Lesser General Public License version 2.1 as
- * published by the Free Software Foundation.
- *
- * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL.
- */
-
-/*
- * Chunk bitmap manipulations
- */
-
-#ifndef __YAFFS_BITMAP_H__
-#define __YAFFS_BITMAP_H__
-
-#include "yaffs_guts.h"
-
-void yaffs_verify_chunk_bit_id(struct yaffs_dev *dev, int blk, int chunk);
-void yaffs_clear_chunk_bits(struct yaffs_dev *dev, int blk);
-void yaffs_clear_chunk_bit(struct yaffs_dev *dev, int blk, int chunk);
-void yaffs_set_chunk_bit(struct yaffs_dev *dev, int blk, int chunk);
-int yaffs_check_chunk_bit(struct yaffs_dev *dev, int blk, int chunk);
-int yaffs_still_some_chunks(struct yaffs_dev *dev, int blk);
-int yaffs_count_chunk_bits(struct yaffs_dev *dev, int blk);
-
-#endif

fs/yaffs2/yaffs_checkptrw.c

@@ -1,409 +0,0 @@
-/*
- * YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
- *
- * Copyright (C) 2002-2011 Aleph One Ltd.
- *   for Toby Churchill Ltd and Brightstar Engineering
- *
- * Created by Charles Manning <charles@aleph1.co.uk>
- *
- * 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 "yaffs_checkptrw.h"
-#include "yaffs_getblockinfo.h"
-#include <dm/devres.h>
-
-static int yaffs2_checkpt_space_ok(struct yaffs_dev *dev)
-{
-	int blocks_avail = dev->n_erased_blocks - dev->param.n_reserved_blocks;
-
-	yaffs_trace(YAFFS_TRACE_CHECKPOINT,
-		"checkpt blocks_avail = %d", blocks_avail);
-
-	return (blocks_avail <= 0) ? 0 : 1;
-}
-
-static int yaffs_checkpt_erase(struct yaffs_dev *dev)
-{
-	int i;
-
-	if (!dev->param.erase_fn)
-		return 0;
-	yaffs_trace(YAFFS_TRACE_CHECKPOINT,
-		"checking blocks %d to %d",
-		dev->internal_start_block, dev->internal_end_block);
-
-	for (i = dev->internal_start_block; i <= dev->internal_end_block; i++) {
-		struct yaffs_block_info *bi = yaffs_get_block_info(dev, i);
-		if (bi->block_state == YAFFS_BLOCK_STATE_CHECKPOINT) {
-			yaffs_trace(YAFFS_TRACE_CHECKPOINT,
-			"erasing checkpt block %d", i);
-
-			dev->n_erasures++;
-
-			if (dev->param.
-			    erase_fn(dev,
-				     i - dev->block_offset /* realign */)) {
-				bi->block_state = YAFFS_BLOCK_STATE_EMPTY;
-				dev->n_erased_blocks++;
-				dev->n_free_chunks +=
-				    dev->param.chunks_per_block;
-			} else {
-				dev->param.bad_block_fn(dev, i);
-				bi->block_state = YAFFS_BLOCK_STATE_DEAD;
-			}
-		}
-	}
-
-	dev->blocks_in_checkpt = 0;
-
-	return 1;
-}
-
-static void yaffs2_checkpt_find_erased_block(struct yaffs_dev *dev)
-{
-	int i;
-	int blocks_avail = dev->n_erased_blocks - dev->param.n_reserved_blocks;
-
-	yaffs_trace(YAFFS_TRACE_CHECKPOINT,
-		"allocating checkpt block: erased %d reserved %d avail %d next %d ",
-		dev->n_erased_blocks, dev->param.n_reserved_blocks,
-		blocks_avail, dev->checkpt_next_block);
-
-	if (dev->checkpt_next_block >= 0 &&
-	    dev->checkpt_next_block <= dev->internal_end_block &&
-	    blocks_avail > 0) {
-
-		for (i = dev->checkpt_next_block; i <= dev->internal_end_block;
-		     i++) {
-			struct yaffs_block_info *bi =
-			    yaffs_get_block_info(dev, i);
-			if (bi->block_state == YAFFS_BLOCK_STATE_EMPTY) {
-				dev->checkpt_next_block = i + 1;
-				dev->checkpt_cur_block = i;
-				yaffs_trace(YAFFS_TRACE_CHECKPOINT,
-					"allocating checkpt block %d", i);
-				return;
-			}
-		}
-	}
-	yaffs_trace(YAFFS_TRACE_CHECKPOINT, "out of checkpt blocks");
-
-	dev->checkpt_next_block = -1;
-	dev->checkpt_cur_block = -1;
-}
-
-static void yaffs2_checkpt_find_block(struct yaffs_dev *dev)
-{
-	int i;
-	struct yaffs_ext_tags tags;
-
-	yaffs_trace(YAFFS_TRACE_CHECKPOINT,
-		"find next checkpt block: start:  blocks %d next %d",
-		dev->blocks_in_checkpt, dev->checkpt_next_block);
-
-	if (dev->blocks_in_checkpt < dev->checkpt_max_blocks)
-		for (i = dev->checkpt_next_block; i <= dev->internal_end_block;
-		     i++) {
-			int chunk = i * dev->param.chunks_per_block;
-			int realigned_chunk = chunk - dev->chunk_offset;
-
-			dev->param.read_chunk_tags_fn(dev, realigned_chunk,
-						      NULL, &tags);
-			yaffs_trace(YAFFS_TRACE_CHECKPOINT,
-				"find next checkpt block: search: block %d oid %d seq %d eccr %d",
-				i, tags.obj_id, tags.seq_number,
-				tags.ecc_result);
-
-			if (tags.seq_number == YAFFS_SEQUENCE_CHECKPOINT_DATA) {
-				/* Right kind of block */
-				dev->checkpt_next_block = tags.obj_id;
-				dev->checkpt_cur_block = i;
-				dev->checkpt_block_list[dev->
-							blocks_in_checkpt] = i;
-				dev->blocks_in_checkpt++;
-				yaffs_trace(YAFFS_TRACE_CHECKPOINT,
-					"found checkpt block %d", i);
-				return;
-			}
-		}
-
-	yaffs_trace(YAFFS_TRACE_CHECKPOINT, "found no more checkpt blocks");
-
-	dev->checkpt_next_block = -1;
-	dev->checkpt_cur_block = -1;
-}
-
-int yaffs2_checkpt_open(struct yaffs_dev *dev, int writing)
-{
-	int i;
-
-	dev->checkpt_open_write = writing;
-
-	/* Got the functions we need? */
-	if (!dev->param.write_chunk_tags_fn ||
-	    !dev->param.read_chunk_tags_fn ||
-	    !dev->param.erase_fn || !dev->param.bad_block_fn)
-		return 0;
-
-	if (writing && !yaffs2_checkpt_space_ok(dev))
-		return 0;
-
-	if (!dev->checkpt_buffer)
-		dev->checkpt_buffer =
-		    kmalloc(dev->param.total_bytes_per_chunk, GFP_NOFS);
-	if (!dev->checkpt_buffer)
-		return 0;
-
-	dev->checkpt_page_seq = 0;
-	dev->checkpt_byte_count = 0;
-	dev->checkpt_sum = 0;
-	dev->checkpt_xor = 0;
-	dev->checkpt_cur_block = -1;
-	dev->checkpt_cur_chunk = -1;
-	dev->checkpt_next_block = dev->internal_start_block;
-
-	/* Erase all the blocks in the checkpoint area */
-	if (writing) {
-		memset(dev->checkpt_buffer, 0, dev->data_bytes_per_chunk);
-		dev->checkpt_byte_offs = 0;
-		return yaffs_checkpt_erase(dev);
-	}
-
-	/* Set to a value that will kick off a read */
-	dev->checkpt_byte_offs = dev->data_bytes_per_chunk;
-	/* A checkpoint block list of 1 checkpoint block per 16 block is
-	 * (hopefully) going to be way more than we need */
-	dev->blocks_in_checkpt = 0;
-	dev->checkpt_max_blocks =
-	    (dev->internal_end_block - dev->internal_start_block) / 16 + 2;
-	dev->checkpt_block_list =
-	    kmalloc(sizeof(int) * dev->checkpt_max_blocks, GFP_NOFS);
-
-	if (!dev->checkpt_block_list)
-		return 0;
-
-	for (i = 0; i < dev->checkpt_max_blocks; i++)
-		dev->checkpt_block_list[i] = -1;
-
-	return 1;
-}
-
-int yaffs2_get_checkpt_sum(struct yaffs_dev *dev, u32 * sum)
-{
-	u32 composite_sum;
-
-	composite_sum = (dev->checkpt_sum << 8) | (dev->checkpt_xor & 0xff);
-	*sum = composite_sum;
-	return 1;
-}
-
-static int yaffs2_checkpt_flush_buffer(struct yaffs_dev *dev)
-{
-	int chunk;
-	int realigned_chunk;
-	struct yaffs_ext_tags tags;
-
-	if (dev->checkpt_cur_block < 0) {
-		yaffs2_checkpt_find_erased_block(dev);
-		dev->checkpt_cur_chunk = 0;
-	}
-
-	if (dev->checkpt_cur_block < 0)
-		return 0;
-
-	tags.is_deleted = 0;
-	tags.obj_id = dev->checkpt_next_block;	/* Hint to next place to look */
-	tags.chunk_id = dev->checkpt_page_seq + 1;
-	tags.seq_number = YAFFS_SEQUENCE_CHECKPOINT_DATA;
-	tags.n_bytes = dev->data_bytes_per_chunk;
-	if (dev->checkpt_cur_chunk == 0) {
-		/* First chunk we write for the block? Set block state to
-		   checkpoint */
-		struct yaffs_block_info *bi =
-		    yaffs_get_block_info(dev, dev->checkpt_cur_block);
-		bi->block_state = YAFFS_BLOCK_STATE_CHECKPOINT;
-		dev->blocks_in_checkpt++;
-	}
-
-	chunk =
-	    dev->checkpt_cur_block * dev->param.chunks_per_block +
-	    dev->checkpt_cur_chunk;
-
-	yaffs_trace(YAFFS_TRACE_CHECKPOINT,
-		"checkpoint wite buffer nand %d(%d:%d) objid %d chId %d",
-		chunk, dev->checkpt_cur_block, dev->checkpt_cur_chunk,
-		tags.obj_id, tags.chunk_id);
-
-	realigned_chunk = chunk - dev->chunk_offset;
-
-	dev->n_page_writes++;
-
-	dev->param.write_chunk_tags_fn(dev, realigned_chunk,
-				       dev->checkpt_buffer, &tags);
-	dev->checkpt_byte_offs = 0;
-	dev->checkpt_page_seq++;
-	dev->checkpt_cur_chunk++;
-	if (dev->checkpt_cur_chunk >= dev->param.chunks_per_block) {
-		dev->checkpt_cur_chunk = 0;
-		dev->checkpt_cur_block = -1;
-	}
-	memset(dev->checkpt_buffer, 0, dev->data_bytes_per_chunk);
-
-	return 1;
-}
-
-int yaffs2_checkpt_wr(struct yaffs_dev *dev, const void *data, int n_bytes)
-{
-	int i = 0;
-	int ok = 1;
-	u8 *data_bytes = (u8 *) data;
-
-	if (!dev->checkpt_buffer)
-		return 0;
-
-	if (!dev->checkpt_open_write)
-		return -1;
-
-	while (i < n_bytes && ok) {
-		dev->checkpt_buffer[dev->checkpt_byte_offs] = *data_bytes;
-		dev->checkpt_sum += *data_bytes;
-		dev->checkpt_xor ^= *data_bytes;
-
-		dev->checkpt_byte_offs++;
-		i++;
-		data_bytes++;
-		dev->checkpt_byte_count++;
-
-		if (dev->checkpt_byte_offs < 0 ||
-		    dev->checkpt_byte_offs >= dev->data_bytes_per_chunk)
-			ok = yaffs2_checkpt_flush_buffer(dev);
-	}
-
-	return i;
-}
-
-int yaffs2_checkpt_rd(struct yaffs_dev *dev, void *data, int n_bytes)
-{
-	int i = 0;
-	int ok = 1;
-	struct yaffs_ext_tags tags;
-	int chunk;
-	int realigned_chunk;
-	u8 *data_bytes = (u8 *) data;
-
-	if (!dev->checkpt_buffer)
-		return 0;
-
-	if (dev->checkpt_open_write)
-		return -1;
-
-	while (i < n_bytes && ok) {
-
-		if (dev->checkpt_byte_offs < 0 ||
-		    dev->checkpt_byte_offs >= dev->data_bytes_per_chunk) {
-
-			if (dev->checkpt_cur_block < 0) {
-				yaffs2_checkpt_find_block(dev);
-				dev->checkpt_cur_chunk = 0;
-			}
-
-			if (dev->checkpt_cur_block < 0) {
-				ok = 0;
-				break;
-			}
-
-			chunk = dev->checkpt_cur_block *
-			    dev->param.chunks_per_block +
-			    dev->checkpt_cur_chunk;
-
-			realigned_chunk = chunk - dev->chunk_offset;
-			dev->n_page_reads++;
-
-			/* read in the next chunk */
-			dev->param.read_chunk_tags_fn(dev,
-						realigned_chunk,
-						dev->checkpt_buffer,
-						&tags);
-
-			if (tags.chunk_id != (dev->checkpt_page_seq + 1) ||
-			    tags.ecc_result > YAFFS_ECC_RESULT_FIXED ||
-			    tags.seq_number != YAFFS_SEQUENCE_CHECKPOINT_DATA) {
-				ok = 0;
-				break;
-			}
-
-			dev->checkpt_byte_offs = 0;
-			dev->checkpt_page_seq++;
-			dev->checkpt_cur_chunk++;
-
-			if (dev->checkpt_cur_chunk >=
-					dev->param.chunks_per_block)
-				dev->checkpt_cur_block = -1;
-		}
-
-		*data_bytes = dev->checkpt_buffer[dev->checkpt_byte_offs];
-		dev->checkpt_sum += *data_bytes;
-		dev->checkpt_xor ^= *data_bytes;
-		dev->checkpt_byte_offs++;
-		i++;
-		data_bytes++;
-		dev->checkpt_byte_count++;
-	}
-
-	return i;
-}
-
-int yaffs_checkpt_close(struct yaffs_dev *dev)
-{
-	int i;
-
-	if (dev->checkpt_open_write) {
-		if (dev->checkpt_byte_offs != 0)
-			yaffs2_checkpt_flush_buffer(dev);
-	} else if (dev->checkpt_block_list) {
-		for (i = 0;
-		     i < dev->blocks_in_checkpt &&
-		     dev->checkpt_block_list[i] >= 0; i++) {
-			int blk = dev->checkpt_block_list[i];
-			struct yaffs_block_info *bi = NULL;
-
-			if (dev->internal_start_block <= blk &&
-			    blk <= dev->internal_end_block)
-				bi = yaffs_get_block_info(dev, blk);
-			if (bi && bi->block_state == YAFFS_BLOCK_STATE_EMPTY)
-				bi->block_state = YAFFS_BLOCK_STATE_CHECKPOINT;
-		}
-		kfree(dev->checkpt_block_list);
-		dev->checkpt_block_list = NULL;
-	}
-
-	dev->n_free_chunks -=
-		dev->blocks_in_checkpt * dev->param.chunks_per_block;
-	dev->n_erased_blocks -= dev->blocks_in_checkpt;
-
-	yaffs_trace(YAFFS_TRACE_CHECKPOINT, "checkpoint byte count %d",
-		dev->checkpt_byte_count);
-
-	if (dev->checkpt_buffer) {
-		/* free the buffer */
-		kfree(dev->checkpt_buffer);
-		dev->checkpt_buffer = NULL;
-		return 1;
-	} else {
-		return 0;
-	}
-}
-
-int yaffs2_checkpt_invalidate_stream(struct yaffs_dev *dev)
-{
-	/* Erase the checkpoint data */
-
-	yaffs_trace(YAFFS_TRACE_CHECKPOINT,
-		"checkpoint invalidate of %d blocks",
-		dev->blocks_in_checkpt);
-
-	return yaffs_checkpt_erase(dev);
-}

fs/yaffs2/yaffs_checkptrw.h

@@ -1,33 +0,0 @@
-/*
- * YAFFS: Yet another Flash File System . A NAND-flash specific file system.
- *
- * Copyright (C) 2002-2011 Aleph One Ltd.
- *   for Toby Churchill Ltd and Brightstar Engineering
- *
- * Created by Charles Manning <charles@aleph1.co.uk>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU Lesser General Public License version 2.1 as
- * published by the Free Software Foundation.
- *
- * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL.
- */
-
-#ifndef __YAFFS_CHECKPTRW_H__
-#define __YAFFS_CHECKPTRW_H__
-
-#include "yaffs_guts.h"
-
-int yaffs2_checkpt_open(struct yaffs_dev *dev, int writing);
-
-int yaffs2_checkpt_wr(struct yaffs_dev *dev, const void *data, int n_bytes);
-
-int yaffs2_checkpt_rd(struct yaffs_dev *dev, void *data, int n_bytes);
-
-int yaffs2_get_checkpt_sum(struct yaffs_dev *dev, u32 * sum);
-
-int yaffs_checkpt_close(struct yaffs_dev *dev);
-
-int yaffs2_checkpt_invalidate_stream(struct yaffs_dev *dev);
-
-#endif

fs/yaffs2/yaffs_ecc.c

@@ -1,280 +0,0 @@
-/*
- * YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
- *
- * Copyright (C) 2002-2011 Aleph One Ltd.
- *   for Toby Churchill Ltd and Brightstar Engineering
- *
- * Created by Charles Manning <charles@aleph1.co.uk>
- *
- * 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.
- */
-
-/*
- * This code implements the ECC algorithm used in SmartMedia.
- *
- * The ECC comprises 22 bits of parity information and is stuffed into 3 bytes.
- * The two unused bit are set to 1.
- * The ECC can correct single bit errors in a 256-byte page of data. Thus, two
- * such ECC blocks are used on a 512-byte NAND page.
- *
- */
-
-#include "yportenv.h"
-
-#include "yaffs_ecc.h"
-
-/* Table generated by gen-ecc.c
- * Using a table means we do not have to calculate p1..p4 and p1'..p4'
- * for each byte of data. These are instead provided in a table in bits7..2.
- * Bit 0 of each entry indicates whether the entry has an odd or even parity,
- * and therefore this bytes influence on the line parity.
- */
-
-static const unsigned char column_parity_table[] = {
-	0x00, 0x55, 0x59, 0x0c, 0x65, 0x30, 0x3c, 0x69,
-	0x69, 0x3c, 0x30, 0x65, 0x0c, 0x59, 0x55, 0x00,
-	0x95, 0xc0, 0xcc, 0x99, 0xf0, 0xa5, 0xa9, 0xfc,
-	0xfc, 0xa9, 0xa5, 0xf0, 0x99, 0xcc, 0xc0, 0x95,
-	0x99, 0xcc, 0xc0, 0x95, 0xfc, 0xa9, 0xa5, 0xf0,
-	0xf0, 0xa5, 0xa9, 0xfc, 0x95, 0xc0, 0xcc, 0x99,
-	0x0c, 0x59, 0x55, 0x00, 0x69, 0x3c, 0x30, 0x65,
-	0x65, 0x30, 0x3c, 0x69, 0x00, 0x55, 0x59, 0x0c,
-	0xa5, 0xf0, 0xfc, 0xa9, 0xc0, 0x95, 0x99, 0xcc,
-	0xcc, 0x99, 0x95, 0xc0, 0xa9, 0xfc, 0xf0, 0xa5,
-	0x30, 0x65, 0x69, 0x3c, 0x55, 0x00, 0x0c, 0x59,
-	0x59, 0x0c, 0x00, 0x55, 0x3c, 0x69, 0x65, 0x30,
-	0x3c, 0x69, 0x65, 0x30, 0x59, 0x0c, 0x00, 0x55,
-	0x55, 0x00, 0x0c, 0x59, 0x30, 0x65, 0x69, 0x3c,
-	0xa9, 0xfc, 0xf0, 0xa5, 0xcc, 0x99, 0x95, 0xc0,
-	0xc0, 0x95, 0x99, 0xcc, 0xa5, 0xf0, 0xfc, 0xa9,
-	0xa9, 0xfc, 0xf0, 0xa5, 0xcc, 0x99, 0x95, 0xc0,
-	0xc0, 0x95, 0x99, 0xcc, 0xa5, 0xf0, 0xfc, 0xa9,
-	0x3c, 0x69, 0x65, 0x30, 0x59, 0x0c, 0x00, 0x55,
-	0x55, 0x00, 0x0c, 0x59, 0x30, 0x65, 0x69, 0x3c,
-	0x30, 0x65, 0x69, 0x3c, 0x55, 0x00, 0x0c, 0x59,
-	0x59, 0x0c, 0x00, 0x55, 0x3c, 0x69, 0x65, 0x30,
-	0xa5, 0xf0, 0xfc, 0xa9, 0xc0, 0x95, 0x99, 0xcc,
-	0xcc, 0x99, 0x95, 0xc0, 0xa9, 0xfc, 0xf0, 0xa5,
-	0x0c, 0x59, 0x55, 0x00, 0x69, 0x3c, 0x30, 0x65,
-	0x65, 0x30, 0x3c, 0x69, 0x00, 0x55, 0x59, 0x0c,
-	0x99, 0xcc, 0xc0, 0x95, 0xfc, 0xa9, 0xa5, 0xf0,
-	0xf0, 0xa5, 0xa9, 0xfc, 0x95, 0xc0, 0xcc, 0x99,
-	0x95, 0xc0, 0xcc, 0x99, 0xf0, 0xa5, 0xa9, 0xfc,
-	0xfc, 0xa9, 0xa5, 0xf0, 0x99, 0xcc, 0xc0, 0x95,
-	0x00, 0x55, 0x59, 0x0c, 0x65, 0x30, 0x3c, 0x69,
-	0x69, 0x3c, 0x30, 0x65, 0x0c, 0x59, 0x55, 0x00,
-};
-
-/* Calculate the ECC for a 256-byte block of data */
-void yaffs_ecc_calc(const unsigned char *data, unsigned char *ecc)
-{
-	unsigned int i;
-	unsigned char col_parity = 0;
-	unsigned char line_parity = 0;
-	unsigned char line_parity_prime = 0;
-	unsigned char t;
-	unsigned char b;
-
-	for (i = 0; i < 256; i++) {
-		b = column_parity_table[*data++];
-		col_parity ^= b;
-
-		if (b & 0x01) {	/* odd number of bits in the byte */
-			line_parity ^= i;
-			line_parity_prime ^= ~i;
-		}
-	}
-
-	ecc[2] = (~col_parity) | 0x03;
-
-	t = 0;
-	if (line_parity & 0x80)
-		t |= 0x80;
-	if (line_parity_prime & 0x80)
-		t |= 0x40;
-	if (line_parity & 0x40)
-		t |= 0x20;
-	if (line_parity_prime & 0x40)
-		t |= 0x10;
-	if (line_parity & 0x20)
-		t |= 0x08;
-	if (line_parity_prime & 0x20)
-		t |= 0x04;
-	if (line_parity & 0x10)
-		t |= 0x02;
-	if (line_parity_prime & 0x10)
-		t |= 0x01;
-	ecc[1] = ~t;
-
-	t = 0;
-	if (line_parity & 0x08)
-		t |= 0x80;
-	if (line_parity_prime & 0x08)
-		t |= 0x40;
-	if (line_parity & 0x04)
-		t |= 0x20;
-	if (line_parity_prime & 0x04)
-		t |= 0x10;
-	if (line_parity & 0x02)
-		t |= 0x08;
-	if (line_parity_prime & 0x02)
-		t |= 0x04;
-	if (line_parity & 0x01)
-		t |= 0x02;
-	if (line_parity_prime & 0x01)
-		t |= 0x01;
-	ecc[0] = ~t;
-
-}
-
-/* Correct the ECC on a 256 byte block of data */
-
-int yaffs_ecc_correct(unsigned char *data, unsigned char *read_ecc,
-		      const unsigned char *test_ecc)
-{
-	unsigned char d0, d1, d2;	/* deltas */
-
-	d0 = read_ecc[0] ^ test_ecc[0];
-	d1 = read_ecc[1] ^ test_ecc[1];
-	d2 = read_ecc[2] ^ test_ecc[2];
-
-	if ((d0 | d1 | d2) == 0)
-		return 0;	/* no error */
-
-	if (((d0 ^ (d0 >> 1)) & 0x55) == 0x55 &&
-	    ((d1 ^ (d1 >> 1)) & 0x55) == 0x55 &&
-	    ((d2 ^ (d2 >> 1)) & 0x54) == 0x54) {
-		/* Single bit (recoverable) error in data */
-
-		unsigned byte;
-		unsigned bit;
-
-		bit = byte = 0;
-
-		if (d1 & 0x80)
-			byte |= 0x80;
-		if (d1 & 0x20)
-			byte |= 0x40;
-		if (d1 & 0x08)
-			byte |= 0x20;
-		if (d1 & 0x02)
-			byte |= 0x10;
-		if (d0 & 0x80)
-			byte |= 0x08;
-		if (d0 & 0x20)
-			byte |= 0x04;
-		if (d0 & 0x08)
-			byte |= 0x02;
-		if (d0 & 0x02)
-			byte |= 0x01;
-
-		if (d2 & 0x80)
-			bit |= 0x04;
-		if (d2 & 0x20)
-			bit |= 0x02;
-		if (d2 & 0x08)
-			bit |= 0x01;
-
-		data[byte] ^= (1 << bit);
-
-		return 1;	/* Corrected the error */
-	}
-
-	if ((hweight8(d0) + hweight8(d1) + hweight8(d2)) == 1) {
-		/* Reccoverable error in ecc */
-
-		read_ecc[0] = test_ecc[0];
-		read_ecc[1] = test_ecc[1];
-		read_ecc[2] = test_ecc[2];
-
-		return 1;	/* Corrected the error */
-	}
-
-	/* Unrecoverable error */
-
-	return -1;
-
-}
-
-/*
- * ECCxxxOther does ECC calcs on arbitrary n bytes of data
- */
-void yaffs_ecc_calc_other(const unsigned char *data, unsigned n_bytes,
-			  struct yaffs_ecc_other *ecc_other)
-{
-	unsigned int i;
-	unsigned char col_parity = 0;
-	unsigned line_parity = 0;
-	unsigned line_parity_prime = 0;
-	unsigned char b;
-
-	for (i = 0; i < n_bytes; i++) {
-		b = column_parity_table[*data++];
-		col_parity ^= b;
-
-		if (b & 0x01) {
-			/* odd number of bits in the byte */
-			line_parity ^= i;
-			line_parity_prime ^= ~i;
-		}
-
-	}
-
-	ecc_other->col_parity = (col_parity >> 2) & 0x3f;
-	ecc_other->line_parity = line_parity;
-	ecc_other->line_parity_prime = line_parity_prime;
-}
-
-int yaffs_ecc_correct_other(unsigned char *data, unsigned n_bytes,
-			    struct yaffs_ecc_other *read_ecc,
-			    const struct yaffs_ecc_other *test_ecc)
-{
-	unsigned char delta_col;	/* column parity delta */
-	unsigned delta_line;	/* line parity delta */
-	unsigned delta_line_prime;	/* line parity delta */
-	unsigned bit;
-
-	delta_col = read_ecc->col_parity ^ test_ecc->col_parity;
-	delta_line = read_ecc->line_parity ^ test_ecc->line_parity;
-	delta_line_prime =
-	    read_ecc->line_parity_prime ^ test_ecc->line_parity_prime;
-
-	if ((delta_col | delta_line | delta_line_prime) == 0)
-		return 0;	/* no error */
-
-	if (delta_line == ~delta_line_prime &&
-	    (((delta_col ^ (delta_col >> 1)) & 0x15) == 0x15)) {
-		/* Single bit (recoverable) error in data */
-
-		bit = 0;
-
-		if (delta_col & 0x20)
-			bit |= 0x04;
-		if (delta_col & 0x08)
-			bit |= 0x02;
-		if (delta_col & 0x02)
-			bit |= 0x01;
-
-		if (delta_line >= n_bytes)
-			return -1;
-
-		data[delta_line] ^= (1 << bit);
-
-		return 1;	/* corrected */
-	}
-
-	if ((hweight32(delta_line) +
-	     hweight32(delta_line_prime) +
-	     hweight8(delta_col)) == 1) {
-		/* Reccoverable error in ecc */
-
-		*read_ecc = *test_ecc;
-		return 1;	/* corrected */
-	}
-
-	/* Unrecoverable error */
-
-	return -1;
-}

fs/yaffs2/yaffs_ecc.h

@@ -1,44 +0,0 @@
-/*
- * YAFFS: Yet another Flash File System . A NAND-flash specific file system.
- *
- * Copyright (C) 2002-2011 Aleph One Ltd.
- *   for Toby Churchill Ltd and Brightstar Engineering
- *
- * Created by Charles Manning <charles@aleph1.co.uk>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU Lesser General Public License version 2.1 as
- * published by the Free Software Foundation.
- *
- * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL.
- */
-
-/*
- * This code implements the ECC algorithm used in SmartMedia.
- *
- * The ECC comprises 22 bits of parity information and is stuffed into 3 bytes.
- * The two unused bit are set to 1.
- * The ECC can correct single bit errors in a 256-byte page of data.
- * Thus, two such ECC blocks are used on a 512-byte NAND page.
- *
- */
-
-#ifndef __YAFFS_ECC_H__
-#define __YAFFS_ECC_H__
-
-struct yaffs_ecc_other {
-	unsigned char col_parity;
-	unsigned line_parity;
-	unsigned line_parity_prime;
-};
-
-void yaffs_ecc_calc(const unsigned char *data, unsigned char *ecc);
-int yaffs_ecc_correct(unsigned char *data, unsigned char *read_ecc,
-		      const unsigned char *test_ecc);
-
-void yaffs_ecc_calc_other(const unsigned char *data, unsigned n_bytes,
-			  struct yaffs_ecc_other *ecc);
-int yaffs_ecc_correct_other(unsigned char *data, unsigned n_bytes,
-			    struct yaffs_ecc_other *read_ecc,
-			    const struct yaffs_ecc_other *test_ecc);
-#endif

fs/yaffs2/yaffs_error.c

@@ -1,58 +0,0 @@
-/*
- * YAFFS: Yet another FFS. A NAND-flash specific file system.
- *
- * Copyright (C) 2002-2011 Aleph One Ltd.
- *   for Toby Churchill Ltd and Brightstar Engineering
- *
- * Created by Timothy Manning <timothy@yaffs.net>
- *
- * 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 "yaffsfs.h"
-
-struct error_entry {
-	int code;
-	const char *text;
-};
-
-static const struct error_entry error_list[] = {
-	{ ENOMEM , "ENOMEM" },
-	{ EBUSY , "EBUSY"},
-	{ ENODEV , "ENODEV"},
-	{ EINVAL , "EINVAL"},
-	{ EBADF , "EBADF"},
-	{ EACCES , "EACCES"},
-	{ EXDEV , "EXDEV" },
-	{ ENOENT , "ENOENT"},
-	{ ENOSPC , "ENOSPC"},
-	{ ERANGE , "ERANGE"},
-	{ ENODATA, "ENODATA"},
-	{ ENOTEMPTY, "ENOTEMPTY"},
-	{ ENAMETOOLONG, "ENAMETOOLONG"},
-	{ ENOMEM , "ENOMEM"},
-	{ EEXIST , "EEXIST"},
-	{ ENOTDIR , "ENOTDIR"},
-	{ EISDIR , "EISDIR"},
-	{ ENFILE, "ENFILE"},
-	{ EROFS, "EROFS"},
-	{ EFAULT, "EFAULT"},
-	{ 0, NULL }
-};
-
-const char *yaffs_error_to_str(int err)
-{
-	const struct error_entry *e = error_list;
-
-	if (err < 0)
-		err = -err;
-
-	while (e->code && e->text) {
-		if (err == e->code)
-			return e->text;
-		e++;
-	}
-	return "Unknown error code";
-}

fs/yaffs2/yaffs_flashif.h

@@ -1,34 +0,0 @@
-/*
- * YAFFS: Yet another Flash File System . A NAND-flash specific file system.
- *
- * Copyright (C) 2002-2011 Aleph One Ltd.
- *   for Toby Churchill Ltd and Brightstar Engineering
- *
- * Created by Charles Manning <charles@aleph1.co.uk>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU Lesser General Public License version 2.1 as
- * published by the Free Software Foundation.
- *
- * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL.
- */
-
-#ifndef __YAFFS_FLASH_H__
-#define __YAFFS_FLASH_H__
-
-#include "yaffs_guts.h"
-int yflash_EraseBlockInNAND(struct yaffs_dev *dev, int blockNumber);
-int yflash_WriteChunkToNAND(struct yaffs_dev *dev, int nand_chunk,
-			const u8 *data, const struct yaffs_spare *spare);
-int yflash_WriteChunkWithTagsToNAND(struct yaffs_dev *dev, int nand_chunk,
-			const u8 *data, const struct yaffs_ext_tags *tags);
-int yflash_ReadChunkFromNAND(struct yaffs_dev *dev, int nand_chunk,
-			u8 *data, struct yaffs_spare *spare);
-int yflash_ReadChunkWithTagsFromNAND(struct yaffs_dev *dev, int nand_chunk,
-			u8 *data, struct yaffs_ext_tags *tags);
-int yflash_InitialiseNAND(struct yaffs_dev *dev);
-int yflash_MarkNANDBlockBad(struct yaffs_dev *dev, int block_no);
-int yflash_QueryNANDBlock(struct yaffs_dev *dev, int block_no,
-			enum yaffs_block_state *state, u32 *seq_number);
-
-#endif

fs/yaffs2/yaffs_flashif2.h

@@ -1,34 +0,0 @@
-/*
- * YAFFS: Yet another Flash File System . A NAND-flash specific file system.
- *
- * Copyright (C) 2002-2011 Aleph One Ltd.
- *   for Toby Churchill Ltd and Brightstar Engineering
- *
- * Created by Charles Manning <charles@aleph1.co.uk>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU Lesser General Public License version 2.1 as
- * published by the Free Software Foundation.
- *
- * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL.
- */
-
-#ifndef __YAFFS_FLASH2_H__
-#define __YAFFS_FLASH2_H__
-
-#include "yaffs_guts.h"
-int yflash2_EraseBlockInNAND(struct yaffs_dev *dev, int blockNumber);
-int yflash2_WriteChunkToNAND(struct yaffs_dev *dev, int nand_chunk,
-			const u8 *data, const struct yaffs_spare *spare);
-int yflash2_WriteChunkWithTagsToNAND(struct yaffs_dev *dev, int nand_chunk,
-			const u8 *data, const struct yaffs_ext_tags *tags);
-int yflash2_ReadChunkFromNAND(struct yaffs_dev *dev, int nand_chunk,
-			u8 *data, struct yaffs_spare *spare);
-int yflash2_ReadChunkWithTagsFromNAND(struct yaffs_dev *dev, int nand_chunk,
-			u8 *data, struct yaffs_ext_tags *tags);
-int yflash2_InitialiseNAND(struct yaffs_dev *dev);
-int yflash2_MarkNANDBlockBad(struct yaffs_dev *dev, int block_no);
-int yflash2_QueryNANDBlock(struct yaffs_dev *dev, int block_no,
-			enum yaffs_block_state *state, u32 *seq_number);
-
-#endif

fs/yaffs2/yaffs_getblockinfo.h

@@ -1,35 +0,0 @@
-/*
- * YAFFS: Yet another Flash File System . A NAND-flash specific file system.
- *
- * Copyright (C) 2002-2011 Aleph One Ltd.
- *   for Toby Churchill Ltd and Brightstar Engineering
- *
- * Created by Charles Manning <charles@aleph1.co.uk>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU Lesser General Public License version 2.1 as
- * published by the Free Software Foundation.
- *
- * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL.
- */
-
-#ifndef __YAFFS_GETBLOCKINFO_H__
-#define __YAFFS_GETBLOCKINFO_H__
-
-#include "yaffs_guts.h"
-#include "yaffs_trace.h"
-
-/* Function to manipulate block info */
-static inline struct yaffs_block_info *yaffs_get_block_info(struct yaffs_dev
-							      *dev, int blk)
-{
-	if (blk < dev->internal_start_block || blk > dev->internal_end_block) {
-		yaffs_trace(YAFFS_TRACE_ERROR,
-			"**>> yaffs: get_block_info block %d is not valid",
-			blk);
-		BUG();
-	}
-	return &dev->block_info[blk - dev->internal_start_block];
-}
-
-#endif

fs/yaffs2/yaffs_guts.h

@@ -1,969 +0,0 @@
-/*
- * YAFFS: Yet another Flash File System . A NAND-flash specific file system.
- *
- * Copyright (C) 2002-2011 Aleph One Ltd.
- *   for Toby Churchill Ltd and Brightstar Engineering
- *
- * Created by Charles Manning <charles@aleph1.co.uk>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU Lesser General Public License version 2.1 as
- * published by the Free Software Foundation.
- *
- * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL.
- */
-
-#ifndef __YAFFS_GUTS_H__
-#define __YAFFS_GUTS_H__
-
-#include "yportenv.h"
-
-#define YAFFS_OK	1
-#define YAFFS_FAIL  0
-
-/* Give us a  Y=0x59,
- * Give us an A=0x41,
- * Give us an FF=0xff
- * Give us an S=0x53
- * And what have we got...
- */
-#define YAFFS_MAGIC			0x5941ff53
-
-/*
- * Tnodes form a tree with the tnodes in "levels"
- * Levels greater than 0 hold 8 slots which point to other tnodes.
- * Those at level 0 hold 16 slots which point to chunks in NAND.
- *
- * A maximum level of 8 thust supports files of size up to:
- *
- * 2^(3*MAX_LEVEL+4)
- *
- * Thus a max level of 8 supports files with up to 2^^28 chunks which gives
- * a maximum file size of arounf 51Gbytees with 2k chunks.
- */
-#define YAFFS_NTNODES_LEVEL0		16
-#define YAFFS_TNODES_LEVEL0_BITS	4
-#define YAFFS_TNODES_LEVEL0_MASK	0xf
-
-#define YAFFS_NTNODES_INTERNAL		(YAFFS_NTNODES_LEVEL0 / 2)
-#define YAFFS_TNODES_INTERNAL_BITS	(YAFFS_TNODES_LEVEL0_BITS - 1)
-#define YAFFS_TNODES_INTERNAL_MASK	0x7
-#define YAFFS_TNODES_MAX_LEVEL		8
-#define YAFFS_TNODES_MAX_BITS		(YAFFS_TNODES_LEVEL0_BITS + \
-					YAFFS_TNODES_INTERNAL_BITS * \
-					YAFFS_TNODES_MAX_LEVEL)
-#define YAFFS_MAX_CHUNK_ID		((1 << YAFFS_TNODES_MAX_BITS) - 1)
-
-/* Constants for YAFFS1 mode */
-#define YAFFS_BYTES_PER_SPARE		16
-#define YAFFS_BYTES_PER_CHUNK		512
-#define YAFFS_CHUNK_SIZE_SHIFT		9
-#define YAFFS_CHUNKS_PER_BLOCK		32
-#define YAFFS_BYTES_PER_BLOCK	(YAFFS_CHUNKS_PER_BLOCK*YAFFS_BYTES_PER_CHUNK)
-
-#define YAFFS_MIN_YAFFS2_CHUNK_SIZE	1024
-#define YAFFS_MIN_YAFFS2_SPARE_SIZE	32
-
-#define YAFFS_ALLOCATION_NOBJECTS	100
-#define YAFFS_ALLOCATION_NTNODES	100
-#define YAFFS_ALLOCATION_NLINKS		100
-
-#define YAFFS_NOBJECT_BUCKETS		256
-
-#define YAFFS_OBJECT_SPACE		0x40000
-#define YAFFS_MAX_OBJECT_ID		(YAFFS_OBJECT_SPACE - 1)
-
-/* Binary data version stamps */
-#define YAFFS_SUMMARY_VERSION		1
-#define YAFFS_CHECKPOINT_VERSION	6
-
-#ifdef CONFIG_YAFFS_UNICODE
-#define YAFFS_MAX_NAME_LENGTH		127
-#define YAFFS_MAX_ALIAS_LENGTH		79
-#else
-#define YAFFS_MAX_NAME_LENGTH		255
-#define YAFFS_MAX_ALIAS_LENGTH		159
-#endif
-
-#define YAFFS_SHORT_NAME_LENGTH		15
-
-/* Some special object ids for pseudo objects */
-#define YAFFS_OBJECTID_ROOT		1
-#define YAFFS_OBJECTID_LOSTNFOUND	2
-#define YAFFS_OBJECTID_UNLINKED		3
-#define YAFFS_OBJECTID_DELETED		4
-
-/* Fake object Id for summary data */
-#define YAFFS_OBJECTID_SUMMARY		0x10
-
-/* Pseudo object ids for checkpointing */
-#define YAFFS_OBJECTID_CHECKPOINT_DATA	0x20
-#define YAFFS_SEQUENCE_CHECKPOINT_DATA	0x21
-
-#define YAFFS_MAX_SHORT_OP_CACHES	20
-
-#define YAFFS_N_TEMP_BUFFERS		6
-
-/* We limit the number attempts at sucessfully saving a chunk of data.
- * Small-page devices have 32 pages per block; large-page devices have 64.
- * Default to something in the order of 5 to 10 blocks worth of chunks.
- */
-#define YAFFS_WR_ATTEMPTS		(5*64)
-
-/* Sequence numbers are used in YAFFS2 to determine block allocation order.
- * The range is limited slightly to help distinguish bad numbers from good.
- * This also allows us to perhaps in the future use special numbers for
- * special purposes.
- * EFFFFF00 allows the allocation of 8 blocks/second (~1Mbytes) for 15 years,
- * and is a larger number than the lifetime of a 2GB device.
- */
-#define YAFFS_LOWEST_SEQUENCE_NUMBER	0x00001000
-#define YAFFS_HIGHEST_SEQUENCE_NUMBER	0xefffff00
-
-/* Special sequence number for bad block that failed to be marked bad */
-#define YAFFS_SEQUENCE_BAD_BLOCK	0xffff0000
-
-/* ChunkCache is used for short read/write operations.*/
-struct yaffs_cache {
-	struct yaffs_obj *object;
-	int chunk_id;
-	int last_use;
-	int dirty;
-	int n_bytes;		/* Only valid if the cache is dirty */
-	int locked;		/* Can't push out or flush while locked. */
-	u8 *data;
-};
-
-/* yaffs1 tags structures in RAM
- * NB This uses bitfield. Bitfields should not straddle a u32 boundary
- * otherwise the structure size will get blown out.
- */
-
-struct yaffs_tags {
-	unsigned chunk_id:20;
-	unsigned serial_number:2;
-	unsigned n_bytes_lsb:10;
-	unsigned obj_id:18;
-	unsigned ecc:12;
-	unsigned n_bytes_msb:2;
-};
-
-union yaffs_tags_union {
-	struct yaffs_tags as_tags;
-	u8 as_bytes[8];
-};
-
-/* Stuff used for extended tags in YAFFS2 */
-
-enum yaffs_ecc_result {
-	YAFFS_ECC_RESULT_UNKNOWN,
-	YAFFS_ECC_RESULT_NO_ERROR,
-	YAFFS_ECC_RESULT_FIXED,
-	YAFFS_ECC_RESULT_UNFIXED
-};
-
-enum yaffs_obj_type {
-	YAFFS_OBJECT_TYPE_UNKNOWN,
-	YAFFS_OBJECT_TYPE_FILE,
-	YAFFS_OBJECT_TYPE_SYMLINK,
-	YAFFS_OBJECT_TYPE_DIRECTORY,
-	YAFFS_OBJECT_TYPE_HARDLINK,
-	YAFFS_OBJECT_TYPE_SPECIAL
-};
-
-#define YAFFS_OBJECT_TYPE_MAX YAFFS_OBJECT_TYPE_SPECIAL
-
-struct yaffs_ext_tags {
-	unsigned chunk_used;	/*  Status of the chunk: used or unused */
-	unsigned obj_id;	/* If 0 this is not used */
-	unsigned chunk_id;	/* If 0 this is a header, else a data chunk */
-	unsigned n_bytes;	/* Only valid for data chunks */
-
-	/* The following stuff only has meaning when we read */
-	enum yaffs_ecc_result ecc_result;
-	unsigned block_bad;
-
-	/* YAFFS 1 stuff */
-	unsigned is_deleted;	/* The chunk is marked deleted */
-	unsigned serial_number;	/* Yaffs1 2-bit serial number */
-
-	/* YAFFS2 stuff */
-	unsigned seq_number;	/* The sequence number of this block */
-
-	/* Extra info if this is an object header (YAFFS2 only) */
-
-	unsigned extra_available;	/* Extra info available if not zero */
-	unsigned extra_parent_id;	/* The parent object */
-	unsigned extra_is_shrink;	/* Is it a shrink header? */
-	unsigned extra_shadows;	/* Does this shadow another object? */
-
-	enum yaffs_obj_type extra_obj_type;	/* What object type? */
-
-	loff_t extra_file_size;		/* Length if it is a file */
-	unsigned extra_equiv_id;	/* Equivalent object for a hard link */
-};
-
-/* Spare structure for YAFFS1 */
-struct yaffs_spare {
-	u8 tb0;
-	u8 tb1;
-	u8 tb2;
-	u8 tb3;
-	u8 page_status;		/* set to 0 to delete the chunk */
-	u8 block_status;
-	u8 tb4;
-	u8 tb5;
-	u8 ecc1[3];
-	u8 tb6;
-	u8 tb7;
-	u8 ecc2[3];
-};
-
-/*Special structure for passing through to mtd */
-struct yaffs_nand_spare {
-	struct yaffs_spare spare;
-	int eccres1;
-	int eccres2;
-};
-
-/* Block data in RAM */
-
-enum yaffs_block_state {
-	YAFFS_BLOCK_STATE_UNKNOWN = 0,
-
-	YAFFS_BLOCK_STATE_SCANNING,
-	/* Being scanned */
-
-	YAFFS_BLOCK_STATE_NEEDS_SCAN,
-	/* The block might have something on it (ie it is allocating or full,
-	 * perhaps empty) but it needs to be scanned to determine its true
-	 * state.
-	 * This state is only valid during scanning.
-	 * NB We tolerate empty because the pre-scanner might be incapable of
-	 * deciding
-	 * However, if this state is returned on a YAFFS2 device,
-	 * then we expect a sequence number
-	 */
-
-	YAFFS_BLOCK_STATE_EMPTY,
-	/* This block is empty */
-
-	YAFFS_BLOCK_STATE_ALLOCATING,
-	/* This block is partially allocated.
-	 * At least one page holds valid data.
-	 * This is the one currently being used for page
-	 * allocation. Should never be more than one of these.
-	 * If a block is only partially allocated at mount it is treated as
-	 * full.
-	 */
-
-	YAFFS_BLOCK_STATE_FULL,
-	/* All the pages in this block have been allocated.
-	 * If a block was only partially allocated when mounted we treat
-	 * it as fully allocated.
-	 */
-
-	YAFFS_BLOCK_STATE_DIRTY,
-	/* The block was full and now all chunks have been deleted.
-	 * Erase me, reuse me.
-	 */
-
-	YAFFS_BLOCK_STATE_CHECKPOINT,
-	/* This block is assigned to holding checkpoint data. */
-
-	YAFFS_BLOCK_STATE_COLLECTING,
-	/* This block is being garbage collected */
-
-	YAFFS_BLOCK_STATE_DEAD
-	    /* This block has failed and is not in use */
-};
-
-#define	YAFFS_NUMBER_OF_BLOCK_STATES (YAFFS_BLOCK_STATE_DEAD + 1)
-
-struct yaffs_block_info {
-
-	int soft_del_pages:10;	/* number of soft deleted pages */
-	int pages_in_use:10;	/* number of pages in use */
-	unsigned block_state:4;	/* One of the above block states. */
-				/* NB use unsigned because enum is sometimes
-				 * an int */
-	u32 needs_retiring:1;	/* Data has failed on this block, */
-				/*need to get valid data off and retire*/
-	u32 skip_erased_check:1;/* Skip the erased check on this block */
-	u32 gc_prioritise:1;	/* An ECC check or blank check has failed.
-				   Block should be prioritised for GC */
-	u32 chunk_error_strikes:3;	/* How many times we've had ecc etc
-				failures on this block and tried to reuse it */
-	u32 has_summary:1;	/* The block has a summary */
-
-	u32 has_shrink_hdr:1;	/* This block has at least one shrink header */
-	u32 seq_number;		/* block sequence number for yaffs2 */
-
-};
-
-/* -------------------------- Object structure -------------------------------*/
-/* This is the object structure as stored on NAND */
-
-struct yaffs_obj_hdr {
-	enum yaffs_obj_type type;
-
-	/* Apply to everything  */
-	int parent_obj_id;
-	u16 sum_no_longer_used;	/* checksum of name. No longer used */
-	YCHAR name[YAFFS_MAX_NAME_LENGTH + 1];
-
-	/* The following apply to all object types except for hard links */
-	u32 yst_mode;		/* protection */
-
-	u32 yst_uid;
-	u32 yst_gid;
-	u32 yst_atime;
-	u32 yst_mtime;
-	u32 yst_ctime;
-
-	/* File size  applies to files only */
-	u32 file_size_low;
-
-	/* Equivalent object id applies to hard links only. */
-	int equiv_id;
-
-	/* Alias is for symlinks only. */
-	YCHAR alias[YAFFS_MAX_ALIAS_LENGTH + 1];
-
-	u32 yst_rdev;	/* stuff for block and char devices (major/min) */
-
-	u32 win_ctime[2];
-	u32 win_atime[2];
-	u32 win_mtime[2];
-
-	u32 inband_shadowed_obj_id;
-	u32 inband_is_shrink;
-
-	u32 file_size_high;
-	u32 reserved[1];
-	int shadows_obj;	/* This object header shadows the
-				specified object if > 0 */
-
-	/* is_shrink applies to object headers written when wemake a hole. */
-	u32 is_shrink;
-
-};
-
-/*--------------------------- Tnode -------------------------- */
-
-struct yaffs_tnode {
-	struct yaffs_tnode *internal[YAFFS_NTNODES_INTERNAL];
-};
-
-/*------------------------  Object -----------------------------*/
-/* An object can be one of:
- * - a directory (no data, has children links
- * - a regular file (data.... not prunes :->).
- * - a symlink [symbolic link] (the alias).
- * - a hard link
- */
-
-struct yaffs_file_var {
-	loff_t file_size;
-	loff_t scanned_size;
-	loff_t shrink_size;
-	int top_level;
-	struct yaffs_tnode *top;
-};
-
-struct yaffs_dir_var {
-	struct list_head children;	/* list of child links */
-	struct list_head dirty;	/* Entry for list of dirty directories */
-};
-
-struct yaffs_symlink_var {
-	YCHAR *alias;
-};
-
-struct yaffs_hardlink_var {
-	struct yaffs_obj *equiv_obj;
-	u32 equiv_id;
-};
-
-union yaffs_obj_var {
-	struct yaffs_file_var file_variant;
-	struct yaffs_dir_var dir_variant;
-	struct yaffs_symlink_var symlink_variant;
-	struct yaffs_hardlink_var hardlink_variant;
-};
-
-struct yaffs_obj {
-	u8 deleted:1;		/* This should only apply to unlinked files. */
-	u8 soft_del:1;		/* it has also been soft deleted */
-	u8 unlinked:1;		/* An unlinked file.*/
-	u8 fake:1;		/* A fake object has no presence on NAND. */
-	u8 rename_allowed:1;	/* Some objects cannot be renamed. */
-	u8 unlink_allowed:1;
-	u8 dirty:1;		/* the object needs to be written to flash */
-	u8 valid:1;		/* When the file system is being loaded up, this
-				 * object might be created before the data
-				 * is available
-				 * ie. file data chunks encountered before
-				* the header.
-				 */
-	u8 lazy_loaded:1;	/* This object has been lazy loaded and
-				 * is missing some detail */
-
-	u8 defered_free:1;	/* Object is removed from NAND, but is
-				 * still in the inode cache.
-				 * Free of object is defered.
-				 * until the inode is released.
-				 */
-	u8 being_created:1;	/* This object is still being created
-				 * so skip some verification checks. */
-	u8 is_shadowed:1;	/* This object is shadowed on the way
-				 * to being renamed. */
-
-	u8 xattr_known:1;	/* We know if this has object has xattribs
-				 * or not. */
-	u8 has_xattr:1;		/* This object has xattribs.
-				 * Only valid if xattr_known. */
-
-	u8 serial;		/* serial number of chunk in NAND.*/
-	u16 sum;		/* sum of the name to speed searching */
-
-	struct yaffs_dev *my_dev;	/* The device I'm on */
-
-	struct list_head hash_link;	/* list of objects in hash bucket */
-
-	struct list_head hard_links;	/* hard linked object chain*/
-
-	/* directory structure stuff */
-	/* also used for linking up the free list */
-	struct yaffs_obj *parent;
-	struct list_head siblings;
-
-	/* Where's my object header in NAND? */
-	int hdr_chunk;
-
-	int n_data_chunks;	/* Number of data chunks for this file. */
-
-	u32 obj_id;		/* the object id value */
-
-	u32 yst_mode;
-
-	YCHAR short_name[YAFFS_SHORT_NAME_LENGTH + 1];
-
-#ifdef CONFIG_YAFFS_WINCE
-	u32 win_ctime[2];
-	u32 win_mtime[2];
-	u32 win_atime[2];
-#else
-	u32 yst_uid;
-	u32 yst_gid;
-	u32 yst_atime;
-	u32 yst_mtime;
-	u32 yst_ctime;
-#endif
-
-	u32 yst_rdev;
-
-	void *my_inode;
-
-	enum yaffs_obj_type variant_type;
-
-	union yaffs_obj_var variant;
-
-};
-
-struct yaffs_obj_bucket {
-	struct list_head list;
-	int count;
-};
-
-/* yaffs_checkpt_obj holds the definition of an object as dumped
- * by checkpointing.
- */
-
-struct yaffs_checkpt_obj {
-	int struct_type;
-	u32 obj_id;
-	u32 parent_id;
-	int hdr_chunk;
-	enum yaffs_obj_type variant_type:3;
-	u8 deleted:1;
-	u8 soft_del:1;
-	u8 unlinked:1;
-	u8 fake:1;
-	u8 rename_allowed:1;
-	u8 unlink_allowed:1;
-	u8 serial;
-	int n_data_chunks;
-	loff_t size_or_equiv_obj;
-};
-
-/*--------------------- Temporary buffers ----------------
- *
- * These are chunk-sized working buffers. Each device has a few.
- */
-
-struct yaffs_buffer {
-	u8 *buffer;
-	int in_use;
-};
-
-/*----------------- Device ---------------------------------*/
-
-struct yaffs_param {
-	const YCHAR *name;
-
-	/*
-	 * Entry parameters set up way early. Yaffs sets up the rest.
-	 * The structure should be zeroed out before use so that unused
-	 * and defualt values are zero.
-	 */
-
-	int inband_tags;	/* Use unband tags */
-	u32 total_bytes_per_chunk;	/* Should be >= 512, does not need to
-					 be a power of 2 */
-	int chunks_per_block;	/* does not need to be a power of 2 */
-	int spare_bytes_per_chunk;	/* spare area size */
-	int start_block;	/* Start block we're allowed to use */
-	int end_block;		/* End block we're allowed to use */
-	int n_reserved_blocks;	/* Tuneable so that we can reduce
-				 * reserved blocks on NOR and RAM. */
-
-	int n_caches;		/* If <= 0, then short op caching is disabled,
-				 * else the number of short op caches.
-				 */
-	int use_nand_ecc;	/* Flag to decide whether or not to use
-				 * NAND driver ECC on data (yaffs1) */
-	int tags_9bytes;	/* Use 9 byte tags */
-	int no_tags_ecc;	/* Flag to decide whether or not to do ECC
-				 * on packed tags (yaffs2) */
-
-	int is_yaffs2;		/* Use yaffs2 mode on this device */
-
-	int empty_lost_n_found;	/* Auto-empty lost+found directory on mount */
-
-	int refresh_period;	/* How often to check for a block refresh */
-
-	/* Checkpoint control. Can be set before or after initialisation */
-	u8 skip_checkpt_rd;
-	u8 skip_checkpt_wr;
-
-	int enable_xattr;	/* Enable xattribs */
-
-	/* NAND access functions (Must be set before calling YAFFS) */
-
-	int (*write_chunk_fn) (struct yaffs_dev *dev,
-			       int nand_chunk, const u8 *data,
-			       const struct yaffs_spare *spare);
-	int (*read_chunk_fn) (struct yaffs_dev *dev,
-			      int nand_chunk, u8 *data,
-			      struct yaffs_spare *spare);
-	int (*erase_fn) (struct yaffs_dev *dev, int flash_block);
-	int (*initialise_flash_fn) (struct yaffs_dev *dev);
-	int (*deinitialise_flash_fn) (struct yaffs_dev *dev);
-
-	/* yaffs2 mode functions */
-	int (*write_chunk_tags_fn) (struct yaffs_dev *dev,
-				    int nand_chunk, const u8 *data,
-				    const struct yaffs_ext_tags *tags);
-	int (*read_chunk_tags_fn) (struct yaffs_dev *dev,
-				   int nand_chunk, u8 *data,
-				   struct yaffs_ext_tags *tags);
-	int (*bad_block_fn) (struct yaffs_dev *dev, int block_no);
-	int (*query_block_fn) (struct yaffs_dev *dev, int block_no,
-			       enum yaffs_block_state *state,
-			       u32 *seq_number);
-
-	/* The remove_obj_fn function must be supplied by OS flavours that
-	 * need it.
-	 * yaffs direct uses it to implement the faster readdir.
-	 * Linux uses it to protect the directory during unlocking.
-	 */
-	void (*remove_obj_fn) (struct yaffs_obj *obj);
-
-	/* Callback to mark the superblock dirty */
-	void (*sb_dirty_fn) (struct yaffs_dev *dev);
-
-	/*  Callback to control garbage collection. */
-	unsigned (*gc_control) (struct yaffs_dev *dev);
-
-	/* Debug control flags. Don't use unless you know what you're doing */
-	int use_header_file_size;	/* Flag to determine if we should use
-					 * file sizes from the header */
-	int disable_lazy_load;	/* Disable lazy loading on this device */
-	int wide_tnodes_disabled;	/* Set to disable wide tnodes */
-	int disable_soft_del;	/* yaffs 1 only: Set to disable the use of
-				 * softdeletion. */
-
-	int defered_dir_update;	/* Set to defer directory updates */
-
-#ifdef CONFIG_YAFFS_AUTO_UNICODE
-	int auto_unicode;
-#endif
-	int always_check_erased;	/* Force chunk erased check always on */
-
-	int disable_summary;
-
-	int max_objects;	/*
-				 * Set to limit the number of objects created.
-				 * 0 = no limit.
-				*/
-};
-
-struct yaffs_dev {
-	struct yaffs_param param;
-
-	/* Context storage. Holds extra OS specific data for this device */
-
-	void *os_context;
-	void *driver_context;
-
-	struct list_head dev_list;
-
-	/* Runtime parameters. Set up by YAFFS. */
-	int data_bytes_per_chunk;
-
-	/* Non-wide tnode stuff */
-	u16 chunk_grp_bits;	/* Number of bits that need to be resolved if
-				 * the tnodes are not wide enough.
-				 */
-	u16 chunk_grp_size;	/* == 2^^chunk_grp_bits */
-
-	/* Stuff to support wide tnodes */
-	u32 tnode_width;
-	u32 tnode_mask;
-	u32 tnode_size;
-
-	/* Stuff for figuring out file offset to chunk conversions */
-	u32 chunk_shift;	/* Shift value */
-	u32 chunk_div;		/* Divisor after shifting: 1 for 2^n sizes */
-	u32 chunk_mask;		/* Mask to use for power-of-2 case */
-
-	int is_mounted;
-	int read_only;
-	int is_checkpointed;
-
-	/* Stuff to support block offsetting to support start block zero */
-	int internal_start_block;
-	int internal_end_block;
-	int block_offset;
-	int chunk_offset;
-
-	/* Runtime checkpointing stuff */
-	int checkpt_page_seq;	/* running sequence number of checkpt pages */
-	int checkpt_byte_count;
-	int checkpt_byte_offs;
-	u8 *checkpt_buffer;
-	int checkpt_open_write;
-	int blocks_in_checkpt;
-	int checkpt_cur_chunk;
-	int checkpt_cur_block;
-	int checkpt_next_block;
-	int *checkpt_block_list;
-	int checkpt_max_blocks;
-	u32 checkpt_sum;
-	u32 checkpt_xor;
-
-	int checkpoint_blocks_required;	/* Number of blocks needed to store
-					 * current checkpoint set */
-
-	/* Block Info */
-	struct yaffs_block_info *block_info;
-	u8 *chunk_bits;		/* bitmap of chunks in use */
-	unsigned block_info_alt:1;	/* allocated using alternative alloc */
-	unsigned chunk_bits_alt:1;	/* allocated using alternative alloc */
-	int chunk_bit_stride;	/* Number of bytes of chunk_bits per block.
-				 * Must be consistent with chunks_per_block.
-				 */
-
-	int n_erased_blocks;
-	int alloc_block;	/* Current block being allocated off */
-	u32 alloc_page;
-	int alloc_block_finder;	/* Used to search for next allocation block */
-
-	/* Object and Tnode memory management */
-	void *allocator;
-	int n_obj;
-	int n_tnodes;
-
-	int n_hardlinks;
-
-	struct yaffs_obj_bucket obj_bucket[YAFFS_NOBJECT_BUCKETS];
-	u32 bucket_finder;
-
-	int n_free_chunks;
-
-	/* Garbage collection control */
-	u32 *gc_cleanup_list;	/* objects to delete at the end of a GC. */
-	u32 n_clean_ups;
-
-	unsigned has_pending_prioritised_gc;	/* We think this device might
-						have pending prioritised gcs */
-	unsigned gc_disable;
-	unsigned gc_block_finder;
-	unsigned gc_dirtiest;
-	unsigned gc_pages_in_use;
-	unsigned gc_not_done;
-	unsigned gc_block;
-	unsigned gc_chunk;
-	unsigned gc_skip;
-	struct yaffs_summary_tags *gc_sum_tags;
-
-	/* Special directories */
-	struct yaffs_obj *root_dir;
-	struct yaffs_obj *lost_n_found;
-
-	int buffered_block;	/* Which block is buffered here? */
-	int doing_buffered_block_rewrite;
-
-	struct yaffs_cache *cache;
-	int cache_last_use;
-
-	/* Stuff for background deletion and unlinked files. */
-	struct yaffs_obj *unlinked_dir;	/* Directory where unlinked and deleted
-					 files live. */
-	struct yaffs_obj *del_dir;	/* Directory where deleted objects are
-					sent to disappear. */
-	struct yaffs_obj *unlinked_deletion;	/* Current file being
-							background deleted. */
-	int n_deleted_files;	/* Count of files awaiting deletion; */
-	int n_unlinked_files;	/* Count of unlinked files. */
-	int n_bg_deletions;	/* Count of background deletions. */
-
-	/* Temporary buffer management */
-	struct yaffs_buffer temp_buffer[YAFFS_N_TEMP_BUFFERS];
-	int max_temp;
-	int temp_in_use;
-	int unmanaged_buffer_allocs;
-	int unmanaged_buffer_deallocs;
-
-	/* yaffs2 runtime stuff */
-	unsigned seq_number;	/* Sequence number of currently
-					allocating block */
-	unsigned oldest_dirty_seq;
-	unsigned oldest_dirty_block;
-
-	/* Block refreshing */
-	int refresh_skip;	/* A skip down counter.
-				 * Refresh happens when this gets to zero. */
-
-	/* Dirty directory handling */
-	struct list_head dirty_dirs;	/* List of dirty directories */
-
-	/* Summary */
-	int chunks_per_summary;
-	struct yaffs_summary_tags *sum_tags;
-
-	/* Statistics */
-	u32 n_page_writes;
-	u32 n_page_reads;
-	u32 n_erasures;
-	u32 n_erase_failures;
-	u32 n_gc_copies;
-	u32 all_gcs;
-	u32 passive_gc_count;
-	u32 oldest_dirty_gc_count;
-	u32 n_gc_blocks;
-	u32 bg_gcs;
-	u32 n_retried_writes;
-	u32 n_retired_blocks;
-	u32 n_ecc_fixed;
-	u32 n_ecc_unfixed;
-	u32 n_tags_ecc_fixed;
-	u32 n_tags_ecc_unfixed;
-	u32 n_deletions;
-	u32 n_unmarked_deletions;
-	u32 refresh_count;
-	u32 cache_hits;
-	u32 tags_used;
-	u32 summary_used;
-
-};
-
-/* The CheckpointDevice structure holds the device information that changes
- *at runtime and must be preserved over unmount/mount cycles.
- */
-struct yaffs_checkpt_dev {
-	int struct_type;
-	int n_erased_blocks;
-	int alloc_block;	/* Current block being allocated off */
-	u32 alloc_page;
-	int n_free_chunks;
-
-	int n_deleted_files;	/* Count of files awaiting deletion; */
-	int n_unlinked_files;	/* Count of unlinked files. */
-	int n_bg_deletions;	/* Count of background deletions. */
-
-	/* yaffs2 runtime stuff */
-	unsigned seq_number;	/* Sequence number of currently
-				 * allocating block */
-
-};
-
-struct yaffs_checkpt_validity {
-	int struct_type;
-	u32 magic;
-	u32 version;
-	u32 head;
-};
-
-struct yaffs_shadow_fixer {
-	int obj_id;
-	int shadowed_id;
-	struct yaffs_shadow_fixer *next;
-};
-
-/* Structure for doing xattr modifications */
-struct yaffs_xattr_mod {
-	int set;		/* If 0 then this is a deletion */
-	const YCHAR *name;
-	const void *data;
-	int size;
-	int flags;
-	int result;
-};
-
-/*----------------------- YAFFS Functions -----------------------*/
-
-int yaffs_guts_initialise(struct yaffs_dev *dev);
-void yaffs_deinitialise(struct yaffs_dev *dev);
-
-int yaffs_get_n_free_chunks(struct yaffs_dev *dev);
-
-int yaffs_rename_obj(struct yaffs_obj *old_dir, const YCHAR * old_name,
-		     struct yaffs_obj *new_dir, const YCHAR * new_name);
-
-int yaffs_unlinker(struct yaffs_obj *dir, const YCHAR * name);
-int yaffs_del_obj(struct yaffs_obj *obj);
-
-int yaffs_get_obj_name(struct yaffs_obj *obj, YCHAR * name, int buffer_size);
-loff_t yaffs_get_obj_length(struct yaffs_obj *obj);
-int yaffs_get_obj_inode(struct yaffs_obj *obj);
-unsigned yaffs_get_obj_type(struct yaffs_obj *obj);
-int yaffs_get_obj_link_count(struct yaffs_obj *obj);
-
-/* File operations */
-int yaffs_file_rd(struct yaffs_obj *obj, u8 * buffer, loff_t offset,
-		  int n_bytes);
-int yaffs_wr_file(struct yaffs_obj *obj, const u8 * buffer, loff_t offset,
-		  int n_bytes, int write_trhrough);
-int yaffs_resize_file(struct yaffs_obj *obj, loff_t new_size);
-
-struct yaffs_obj *yaffs_create_file(struct yaffs_obj *parent,
-				    const YCHAR *name, u32 mode, u32 uid,
-				    u32 gid);
-
-int yaffs_flush_file(struct yaffs_obj *obj, int update_time, int data_sync);
-
-/* Flushing and checkpointing */
-void yaffs_flush_whole_cache(struct yaffs_dev *dev);
-
-int yaffs_checkpoint_save(struct yaffs_dev *dev);
-int yaffs_checkpoint_restore(struct yaffs_dev *dev);
-
-/* Directory operations */
-struct yaffs_obj *yaffs_create_dir(struct yaffs_obj *parent, const YCHAR *name,
-				   u32 mode, u32 uid, u32 gid);
-struct yaffs_obj *yaffs_find_by_name(struct yaffs_obj *the_dir,
-				     const YCHAR *name);
-struct yaffs_obj *yaffs_find_by_number(struct yaffs_dev *dev, u32 number);
-
-/* Link operations */
-struct yaffs_obj *yaffs_link_obj(struct yaffs_obj *parent, const YCHAR *name,
-				 struct yaffs_obj *equiv_obj);
-
-struct yaffs_obj *yaffs_get_equivalent_obj(struct yaffs_obj *obj);
-
-/* Symlink operations */
-struct yaffs_obj *yaffs_create_symlink(struct yaffs_obj *parent,
-				       const YCHAR *name, u32 mode, u32 uid,
-				       u32 gid, const YCHAR *alias);
-YCHAR *yaffs_get_symlink_alias(struct yaffs_obj *obj);
-
-/* Special inodes (fifos, sockets and devices) */
-struct yaffs_obj *yaffs_create_special(struct yaffs_obj *parent,
-				       const YCHAR *name, u32 mode, u32 uid,
-				       u32 gid, u32 rdev);
-
-int yaffs_set_xattrib(struct yaffs_obj *obj, const YCHAR *name,
-		      const void *value, int size, int flags);
-int yaffs_get_xattrib(struct yaffs_obj *obj, const YCHAR *name, void *value,
-		      int size);
-int yaffs_list_xattrib(struct yaffs_obj *obj, char *buffer, int size);
-int yaffs_remove_xattrib(struct yaffs_obj *obj, const YCHAR *name);
-
-/* Special directories */
-struct yaffs_obj *yaffs_root(struct yaffs_dev *dev);
-struct yaffs_obj *yaffs_lost_n_found(struct yaffs_dev *dev);
-
-void yaffs_handle_defered_free(struct yaffs_obj *obj);
-
-void yaffs_update_dirty_dirs(struct yaffs_dev *dev);
-
-int yaffs_bg_gc(struct yaffs_dev *dev, unsigned urgency);
-
-/* Debug dump  */
-int yaffs_dump_obj(struct yaffs_obj *obj);
-
-void yaffs_guts_test(struct yaffs_dev *dev);
-
-/* A few useful functions to be used within the core files*/
-void yaffs_chunk_del(struct yaffs_dev *dev, int chunk_id, int mark_flash,
-		     int lyn);
-int yaffs_check_ff(u8 *buffer, int n_bytes);
-void yaffs_handle_chunk_error(struct yaffs_dev *dev,
-			      struct yaffs_block_info *bi);
-
-u8 *yaffs_get_temp_buffer(struct yaffs_dev *dev);
-void yaffs_release_temp_buffer(struct yaffs_dev *dev, u8 *buffer);
-
-struct yaffs_obj *yaffs_find_or_create_by_number(struct yaffs_dev *dev,
-						 int number,
-						 enum yaffs_obj_type type);
-int yaffs_put_chunk_in_file(struct yaffs_obj *in, int inode_chunk,
-			    int nand_chunk, int in_scan);
-void yaffs_set_obj_name(struct yaffs_obj *obj, const YCHAR *name);
-void yaffs_set_obj_name_from_oh(struct yaffs_obj *obj,
-				const struct yaffs_obj_hdr *oh);
-void yaffs_add_obj_to_dir(struct yaffs_obj *directory, struct yaffs_obj *obj);
-YCHAR *yaffs_clone_str(const YCHAR *str);
-void yaffs_link_fixup(struct yaffs_dev *dev, struct list_head *hard_list);
-void yaffs_block_became_dirty(struct yaffs_dev *dev, int block_no);
-int yaffs_update_oh(struct yaffs_obj *in, const YCHAR *name,
-		    int force, int is_shrink, int shadows,
-		    struct yaffs_xattr_mod *xop);
-void yaffs_handle_shadowed_obj(struct yaffs_dev *dev, int obj_id,
-			       int backward_scanning);
-int yaffs_check_alloc_available(struct yaffs_dev *dev, int n_chunks);
-struct yaffs_tnode *yaffs_get_tnode(struct yaffs_dev *dev);
-struct yaffs_tnode *yaffs_add_find_tnode_0(struct yaffs_dev *dev,
-					   struct yaffs_file_var *file_struct,
-					   u32 chunk_id,
-					   struct yaffs_tnode *passed_tn);
-
-int yaffs_do_file_wr(struct yaffs_obj *in, const u8 *buffer, loff_t offset,
-		     int n_bytes, int write_trhrough);
-void yaffs_resize_file_down(struct yaffs_obj *obj, loff_t new_size);
-void yaffs_skip_rest_of_block(struct yaffs_dev *dev);
-
-int yaffs_count_free_chunks(struct yaffs_dev *dev);
-
-struct yaffs_tnode *yaffs_find_tnode_0(struct yaffs_dev *dev,
-				       struct yaffs_file_var *file_struct,
-				       u32 chunk_id);
-
-u32 yaffs_get_group_base(struct yaffs_dev *dev, struct yaffs_tnode *tn,
-			 unsigned pos);
-
-int yaffs_is_non_empty_dir(struct yaffs_obj *obj);
-
-void yaffs_addr_to_chunk(struct yaffs_dev *dev, loff_t addr,
-				int *chunk_out, u32 *offset_out);
-/*
- * Marshalling functions to get loff_t file sizes into aand out of
- * object headers.
- */
-void yaffs_oh_size_load(struct yaffs_obj_hdr *oh, loff_t fsize);
-loff_t yaffs_oh_to_size(struct yaffs_obj_hdr *oh);
-loff_t yaffs_max_file_size(struct yaffs_dev *dev);
-
-#endif

fs/yaffs2/yaffs_mtdif.c

@@ -1,159 +0,0 @@
-/*
- * YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
- *
- * Copyright (C) 2002-2007 Aleph One Ltd.
- *   for Toby Churchill Ltd and Brightstar Engineering
- *
- * Created by Charles Manning <charles@aleph1.co.uk>
- *
- * 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.
- */
-
-/* XXX U-BOOT XXX */
-
-#include "yportenv.h"
-
-#include "yaffs_mtdif.h"
-
-#include <linux/mtd/mtd.h>
-#include <linux/types.h>
-#include <linux/time.h>
-#include <linux/mtd/rawnand.h>
-
-static inline void translate_spare2oob(const struct yaffs_spare *spare, u8 *oob)
-{
-	oob[0] = spare->tb0;
-	oob[1] = spare->tb1;
-	oob[2] = spare->tb2;
-	oob[3] = spare->tb3;
-	oob[4] = spare->tb4;
-	oob[5] = spare->tb5 & 0x3f;
-	oob[5] |= spare->block_status == 'Y' ? 0 : 0x80;
-	oob[5] |= spare->page_status == 0 ? 0 : 0x40;
-	oob[6] = spare->tb6;
-	oob[7] = spare->tb7;
-}
-
-static inline void translate_oob2spare(struct yaffs_spare *spare, u8 *oob)
-{
-	struct yaffs_nand_spare *nspare = (struct yaffs_nand_spare *)spare;
-	spare->tb0 = oob[0];
-	spare->tb1 = oob[1];
-	spare->tb2 = oob[2];
-	spare->tb3 = oob[3];
-	spare->tb4 = oob[4];
-	spare->tb5 = oob[5] == 0xff ? 0xff : oob[5] & 0x3f;
-	spare->block_status = oob[5] & 0x80 ? 0xff : 'Y';
-	spare->page_status = oob[5] & 0x40 ? 0xff : 0;
-	spare->ecc1[0] = spare->ecc1[1] = spare->ecc1[2] = 0xff;
-	spare->tb6 = oob[6];
-	spare->tb7 = oob[7];
-	spare->ecc2[0] = spare->ecc2[1] = spare->ecc2[2] = 0xff;
-
-	nspare->eccres1 = nspare->eccres2 = 0; /* FIXME */
-}
-
-int nandmtd_WriteChunkToNAND(struct yaffs_dev *dev, int chunkInNAND,
-			     const u8 *data, const struct yaffs_spare *spare)
-{
-	struct mtd_info *mtd = (struct mtd_info *)(dev->driver_context);
-	struct mtd_oob_ops ops;
-	size_t dummy;
-	int retval = 0;
-	loff_t addr = ((loff_t) chunkInNAND) * dev->data_bytes_per_chunk;
-	u8 spareAsBytes[8]; /* OOB */
-
-	if (data && !spare)
-		retval = mtd_write(mtd, addr, dev->data_bytes_per_chunk,
-				&dummy, data);
-	else if (spare) {
-		if (dev->param.use_nand_ecc) {
-			translate_spare2oob(spare, spareAsBytes);
-			ops.mode = MTD_OPS_AUTO_OOB;
-			ops.ooblen = 8; /* temp hack */
-		} else {
-			ops.mode = MTD_OPS_RAW;
-			ops.ooblen = YAFFS_BYTES_PER_SPARE;
-		}
-		ops.len = data ? dev->data_bytes_per_chunk : ops.ooblen;
-		ops.datbuf = (u8 *)data;
-		ops.ooboffs = 0;
-		ops.oobbuf = spareAsBytes;
-		retval = mtd_write_oob(mtd, addr, &ops);
-	}
-
-	if (retval == 0)
-		return YAFFS_OK;
-	else
-		return YAFFS_FAIL;
-}
-
-int nandmtd_ReadChunkFromNAND(struct yaffs_dev *dev, int chunkInNAND, u8 *data,
-			      struct yaffs_spare *spare)
-{
-	struct mtd_info *mtd = (struct mtd_info *)(dev->driver_context);
-	struct mtd_oob_ops ops;
-	size_t dummy;
-	int retval = 0;
-
-	loff_t addr = ((loff_t) chunkInNAND) * dev->data_bytes_per_chunk;
-	u8 spareAsBytes[8]; /* OOB */
-
-	if (data && !spare)
-		retval = mtd_read(mtd, addr, dev->data_bytes_per_chunk,
-				&dummy, data);
-	else if (spare) {
-		if (dev->param.use_nand_ecc) {
-			ops.mode = MTD_OPS_AUTO_OOB;
-			ops.ooblen = 8; /* temp hack */
-		} else {
-			ops.mode = MTD_OPS_RAW;
-			ops.ooblen = YAFFS_BYTES_PER_SPARE;
-		}
-		ops.len = data ? dev->data_bytes_per_chunk : ops.ooblen;
-		ops.datbuf = data;
-		ops.ooboffs = 0;
-		ops.oobbuf = spareAsBytes;
-		retval = mtd_read_oob(mtd, addr, &ops);
-		if (dev->param.use_nand_ecc)
-			translate_oob2spare(spare, spareAsBytes);
-	}
-
-	if (retval == 0)
-		return YAFFS_OK;
-	else
-		return YAFFS_FAIL;
-}
-
-int nandmtd_EraseBlockInNAND(struct yaffs_dev *dev, int blockNumber)
-{
-	struct mtd_info *mtd = (struct mtd_info *)(dev->driver_context);
-	__u32 addr =
-	    ((loff_t) blockNumber) * dev->data_bytes_per_chunk
-		* dev->param.chunks_per_block;
-	struct erase_info ei;
-	int retval = 0;
-
-	ei.mtd = mtd;
-	ei.addr = addr;
-	ei.len = dev->data_bytes_per_chunk * dev->param.chunks_per_block;
-	ei.time = 1000;
-	ei.retries = 2;
-	ei.priv = (u_long) dev;
-
-	/* Todo finish off the ei if required */
-
-	retval = mtd_erase(mtd, &ei);
-
-	if (retval == 0)
-		return YAFFS_OK;
-	else
-		return YAFFS_FAIL;
-}
-
-int nandmtd_InitialiseNAND(struct yaffs_dev *dev)
-{
-	return YAFFS_OK;
-}

fs/yaffs2/yaffs_mtdif.h

@@ -1,27 +0,0 @@
-/*
- * YAFFS: Yet another Flash File System . A NAND-flash specific file system.
- *
- * Copyright (C) 2002-2007 Aleph One Ltd.
- *   for Toby Churchill Ltd and Brightstar Engineering
- *
- * Created by Charles Manning <charles@aleph1.co.uk>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU Lesser General Public License version 2.1 as
- * published by the Free Software Foundation.
- *
- * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL.
- */
-
-#ifndef __YAFFS_MTDIF_H__
-#define __YAFFS_MTDIF_H__
-
-#include "yaffs_guts.h"
-
-int nandmtd_WriteChunkToNAND(struct yaffs_dev *dev, int chunkInNAND,
-			     const u8 *data, const struct yaffs_spare *spare);
-int nandmtd_ReadChunkFromNAND(struct yaffs_dev *dev, int chunkInNAND, u8 *data,
-			      struct yaffs_spare *spare);
-int nandmtd_EraseBlockInNAND(struct yaffs_dev *dev, int blockNumber);
-int nandmtd_InitialiseNAND(struct yaffs_dev *dev);
-#endif

fs/yaffs2/yaffs_mtdif2.c

@@ -1,230 +0,0 @@
-/*
- * YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
- *
- * Copyright (C) 2002-2007 Aleph One Ltd.
- *   for Toby Churchill Ltd and Brightstar Engineering
- *
- * Created by Charles Manning <charles@aleph1.co.uk>
- *
- * 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.
- */
-
-/* mtd interface for YAFFS2 */
-
-/* XXX U-BOOT XXX */
-#include <linux/bug.h>
-#include <linux/errno.h>
-
-#include "yportenv.h"
-#include "yaffs_trace.h"
-
-#include "yaffs_mtdif2.h"
-
-#include <linux/mtd/mtd.h>
-#include <linux/types.h>
-#include <linux/time.h>
-
-#include "yaffs_trace.h"
-#include "yaffs_packedtags2.h"
-
-#define yaffs_dev_to_mtd(dev) ((struct mtd_info *)((dev)->driver_context))
-#define yaffs_dev_to_lc(dev) ((struct yaffs_linux_context *)((dev)->os_context))
-
-/* NB For use with inband tags....
- * We assume that the data buffer is of size total_bytes_per_chunk so
- * that we can also use it to load the tags.
- */
-int nandmtd2_write_chunk_tags(struct yaffs_dev *dev, int nand_chunk,
-			      const u8 *data,
-			      const struct yaffs_ext_tags *tags)
-{
-	struct mtd_info *mtd = yaffs_dev_to_mtd(dev);
-	struct mtd_oob_ops ops;
-
-	int retval = 0;
-	loff_t addr;
-
-	struct yaffs_packed_tags2 pt;
-
-	int packed_tags_size =
-	    dev->param.no_tags_ecc ? sizeof(pt.t) : sizeof(pt);
-	void *packed_tags_ptr =
-	    dev->param.no_tags_ecc ? (void *)&pt.t : (void *)&pt;
-
-	yaffs_trace(YAFFS_TRACE_MTD,
-		"nandmtd2_write_chunk_tags chunk %d data %p tags %p",
-		nand_chunk, data, tags);
-
-	addr = ((loff_t) nand_chunk) * dev->param.total_bytes_per_chunk;
-
-	/* For yaffs2 writing there must be both data and tags.
-	 * If we're using inband tags, then the tags are stuffed into
-	 * the end of the data buffer.
-	 */
-	if (!data || !tags)
-		BUG();
-	else if (dev->param.inband_tags) {
-		struct yaffs_packed_tags2_tags_only *pt2tp;
-		pt2tp =
-		    (struct yaffs_packed_tags2_tags_only *)(data +
-							dev->
-							data_bytes_per_chunk);
-		yaffs_pack_tags2_tags_only(pt2tp, tags);
-	} else {
-		yaffs_pack_tags2(&pt, tags, !dev->param.no_tags_ecc);
-	}
-
-	ops.mode = MTD_OPS_AUTO_OOB;
-	ops.ooblen = (dev->param.inband_tags) ? 0 : packed_tags_size;
-	ops.len = dev->param.total_bytes_per_chunk;
-	ops.ooboffs = 0;
-	ops.datbuf = (u8 *) data;
-	ops.oobbuf = (dev->param.inband_tags) ? NULL : packed_tags_ptr;
-	retval = mtd_write_oob(mtd, addr, &ops);
-
-	if (retval == 0)
-		return YAFFS_OK;
-	else
-		return YAFFS_FAIL;
-}
-
-int nandmtd2_read_chunk_tags(struct yaffs_dev *dev, int nand_chunk,
-			     u8 *data, struct yaffs_ext_tags *tags)
-{
-	struct mtd_info *mtd = yaffs_dev_to_mtd(dev);
-	u8 local_spare[128];
-	struct mtd_oob_ops ops;
-	size_t dummy;
-	int retval = 0;
-	int local_data = 0;
-	struct yaffs_packed_tags2 pt;
-	loff_t addr = ((loff_t) nand_chunk) * dev->param.total_bytes_per_chunk;
-	int packed_tags_size =
-	    dev->param.no_tags_ecc ? sizeof(pt.t) : sizeof(pt);
-	void *packed_tags_ptr =
-	    dev->param.no_tags_ecc ? (void *)&pt.t : (void *)&pt;
-
-	yaffs_trace(YAFFS_TRACE_MTD,
-		"nandmtd2_read_chunk_tags chunk %d data %p tags %p",
-		nand_chunk, data, tags);
-
-	if (dev->param.inband_tags) {
-
-		if (!data) {
-			local_data = 1;
-			data = yaffs_get_temp_buffer(dev);
-		}
-
-	}
-
-	if (dev->param.inband_tags || (data && !tags))
-		retval = mtd_read(mtd, addr, dev->param.total_bytes_per_chunk,
-				   &dummy, data);
-	else if (tags) {
-		ops.mode = MTD_OPS_AUTO_OOB;
-		ops.ooblen = packed_tags_size;
-		ops.len = data ? dev->data_bytes_per_chunk : packed_tags_size;
-		ops.ooboffs = 0;
-		ops.datbuf = data;
-		ops.oobbuf = local_spare;
-		retval = mtd_read_oob(mtd, addr, &ops);
-	}
-
-	if (dev->param.inband_tags) {
-		if (tags) {
-			struct yaffs_packed_tags2_tags_only *pt2tp;
-			pt2tp =
-				(struct yaffs_packed_tags2_tags_only *)
-				&data[dev->data_bytes_per_chunk];
-			yaffs_unpack_tags2_tags_only(tags, pt2tp);
-		}
-	} else {
-		if (tags) {
-			memcpy(packed_tags_ptr,
-			       local_spare,
-			       packed_tags_size);
-			yaffs_unpack_tags2(tags, &pt, !dev->param.no_tags_ecc);
-		}
-	}
-
-	if (local_data)
-		yaffs_release_temp_buffer(dev, data);
-
-	if (tags && retval == -EBADMSG
-	    && tags->ecc_result == YAFFS_ECC_RESULT_NO_ERROR) {
-		tags->ecc_result = YAFFS_ECC_RESULT_UNFIXED;
-		dev->n_ecc_unfixed++;
-	}
-	if (tags && retval == -EUCLEAN
-	    && tags->ecc_result == YAFFS_ECC_RESULT_NO_ERROR) {
-		tags->ecc_result = YAFFS_ECC_RESULT_FIXED;
-		dev->n_ecc_fixed++;
-	}
-	if (retval == 0)
-		return YAFFS_OK;
-	else
-		return YAFFS_FAIL;
-}
-
-int nandmtd2_MarkNANDBlockBad(struct yaffs_dev *dev, int blockNo)
-{
-	struct mtd_info *mtd = (struct mtd_info *)(dev->driver_context);
-	int retval;
-
-	yaffs_trace(YAFFS_TRACE_MTD,
-		"nandmtd2_MarkNANDBlockBad %d", blockNo);
-
-	retval =
-	    mtd_block_markbad(mtd,
-			       blockNo * dev->param.chunks_per_block *
-			       dev->data_bytes_per_chunk);
-
-	if (retval == 0)
-		return YAFFS_OK;
-	else
-		return YAFFS_FAIL;
-
-}
-
-int nandmtd2_QueryNANDBlock(struct yaffs_dev *dev, int blockNo,
-			    enum yaffs_block_state *state, u32 *sequenceNumber)
-{
-	struct mtd_info *mtd = (struct mtd_info *)(dev->driver_context);
-	int retval;
-
-	yaffs_trace(YAFFS_TRACE_MTD, "nandmtd2_QueryNANDBlock %d", blockNo);
-	retval =
-	    mtd_block_isbad(mtd,
-			     blockNo * dev->param.chunks_per_block *
-			     dev->data_bytes_per_chunk);
-
-	if (retval) {
-		yaffs_trace(YAFFS_TRACE_MTD, "block is bad");
-
-		*state = YAFFS_BLOCK_STATE_DEAD;
-		*sequenceNumber = 0;
-	} else {
-		struct yaffs_ext_tags t;
-		nandmtd2_read_chunk_tags(dev,
-					   blockNo *
-					   dev->param.chunks_per_block, NULL,
-					   &t);
-
-		if (t.chunk_used) {
-			*sequenceNumber = t.seq_number;
-			*state = YAFFS_BLOCK_STATE_NEEDS_SCAN;
-		} else {
-			*sequenceNumber = 0;
-			*state = YAFFS_BLOCK_STATE_EMPTY;
-		}
-	}
-	yaffs_trace(YAFFS_TRACE_MTD, "block is bad seq %d state %d",
-			*sequenceNumber, *state);
-
-	if (retval == 0)
-		return YAFFS_OK;
-	else
-		return YAFFS_FAIL;
-}

fs/yaffs2/yaffs_mtdif2.h

@@ -1,30 +0,0 @@
-/*
- * YAFFS: Yet another Flash File System . A NAND-flash specific file system.
- *
- * Copyright (C) 2002-2007 Aleph One Ltd.
- *   for Toby Churchill Ltd and Brightstar Engineering
- *
- * Created by Charles Manning <charles@aleph1.co.uk>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU Lesser General Public License version 2.1 as
- * published by the Free Software Foundation.
- *
- * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL.
- */
-
-#ifndef __YAFFS_MTDIF2_H__
-#define __YAFFS_MTDIF2_H__
-
-#include "yaffs_guts.h"
-
-int nandmtd2_write_chunk_tags(struct yaffs_dev *dev, int chunkInNAND,
-				      const u8 *data,
-				      const struct yaffs_ext_tags *tags);
-int nandmtd2_read_chunk_tags(struct yaffs_dev *dev, int chunkInNAND,
-				       u8 *data, struct yaffs_ext_tags *tags);
-int nandmtd2_MarkNANDBlockBad(struct yaffs_dev *dev, int blockNo);
-int nandmtd2_QueryNANDBlock(struct yaffs_dev *dev, int blockNo,
-			    enum yaffs_block_state *state, u32 *sequenceNumber);
-
-#endif

fs/yaffs2/yaffs_nameval.c

@@ -1,208 +0,0 @@
-/*
- * YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
- *
- * Copyright (C) 2002-2011 Aleph One Ltd.
- *   for Toby Churchill Ltd and Brightstar Engineering
- *
- * Created by Charles Manning <charles@aleph1.co.uk>
- *
- * 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.
- */
-
-/*
- * This simple implementation of a name-value store assumes a small number of
-* values and fits into a small finite buffer.
- *
- * Each attribute is stored as a record:
- *  sizeof(int) bytes   record size.
- *  yaffs_strnlen+1 bytes name null terminated.
- *  nbytes    value.
- *  ----------
- *  total size  stored in record size
- *
- * This code has not been tested with unicode yet.
- */
-
-#include "yaffs_nameval.h"
-
-#include "yportenv.h"
-
-static int nval_find(const char *xb, int xb_size, const YCHAR *name,
-		     int *exist_size)
-{
-	int pos = 0;
-	int size;
-
-	memcpy(&size, xb, sizeof(int));
-	while (size > 0 && (size < xb_size) && (pos + size < xb_size)) {
-		if (!yaffs_strncmp((YCHAR *) (xb + pos + sizeof(int)),
-				name, size)) {
-			if (exist_size)
-				*exist_size = size;
-			return pos;
-		}
-		pos += size;
-		if (pos < xb_size - sizeof(int))
-			memcpy(&size, xb + pos, sizeof(int));
-		else
-			size = 0;
-	}
-	if (exist_size)
-		*exist_size = 0;
-	return -ENODATA;
-}
-
-static int nval_used(const char *xb, int xb_size)
-{
-	int pos = 0;
-	int size;
-
-	memcpy(&size, xb + pos, sizeof(int));
-	while (size > 0 && (size < xb_size) && (pos + size < xb_size)) {
-		pos += size;
-		if (pos < xb_size - sizeof(int))
-			memcpy(&size, xb + pos, sizeof(int));
-		else
-			size = 0;
-	}
-	return pos;
-}
-
-int nval_del(char *xb, int xb_size, const YCHAR *name)
-{
-	int pos = nval_find(xb, xb_size, name, NULL);
-	int size;
-
-	if (pos < 0 || pos >= xb_size)
-		return -ENODATA;
-
-	/* Find size, shift rest over this record,
-	 * then zero out the rest of buffer */
-	memcpy(&size, xb + pos, sizeof(int));
-	memcpy(xb + pos, xb + pos + size, xb_size - (pos + size));
-	memset(xb + (xb_size - size), 0, size);
-	return 0;
-}
-
-int nval_set(char *xb, int xb_size, const YCHAR *name, const char *buf,
-		int bsize, int flags)
-{
-	int pos;
-	int namelen = yaffs_strnlen(name, xb_size);
-	int reclen;
-	int size_exist = 0;
-	int space;
-	int start;
-
-	pos = nval_find(xb, xb_size, name, &size_exist);
-
-	if (flags & XATTR_CREATE && pos >= 0)
-		return -EEXIST;
-	if (flags & XATTR_REPLACE && pos < 0)
-		return -ENODATA;
-
-	start = nval_used(xb, xb_size);
-	space = xb_size - start + size_exist;
-
-	reclen = (sizeof(int) + namelen + 1 + bsize);
-
-	if (reclen > space)
-		return -ENOSPC;
-
-	if (pos >= 0) {
-		nval_del(xb, xb_size, name);
-		start = nval_used(xb, xb_size);
-	}
-
-	pos = start;
-
-	memcpy(xb + pos, &reclen, sizeof(int));
-	pos += sizeof(int);
-	yaffs_strncpy((YCHAR *) (xb + pos), name, reclen);
-	pos += (namelen + 1);
-	memcpy(xb + pos, buf, bsize);
-	return 0;
-}
-
-int nval_get(const char *xb, int xb_size, const YCHAR * name, char *buf,
-	     int bsize)
-{
-	int pos = nval_find(xb, xb_size, name, NULL);
-	int size;
-
-	if (pos >= 0 && pos < xb_size) {
-
-		memcpy(&size, xb + pos, sizeof(int));
-		pos += sizeof(int);	/* advance past record length */
-		size -= sizeof(int);
-
-		/* Advance over name string */
-		while (xb[pos] && size > 0 && pos < xb_size) {
-			pos++;
-			size--;
-		}
-		/*Advance over NUL */
-		pos++;
-		size--;
-
-		/* If bsize is zero then this is a size query.
-		 * Return the size, but don't copy.
-		 */
-		if (!bsize)
-			return size;
-
-		if (size <= bsize) {
-			memcpy(buf, xb + pos, size);
-			return size;
-		}
-	}
-	if (pos >= 0)
-		return -ERANGE;
-
-	return -ENODATA;
-}
-
-int nval_list(const char *xb, int xb_size, char *buf, int bsize)
-{
-	int pos = 0;
-	int size;
-	int name_len;
-	int ncopied = 0;
-	int filled = 0;
-
-	memcpy(&size, xb + pos, sizeof(int));
-	while (size > sizeof(int) &&
-		size <= xb_size &&
-		(pos + size) < xb_size &&
-		!filled) {
-		pos += sizeof(int);
-		size -= sizeof(int);
-		name_len = yaffs_strnlen((YCHAR *) (xb + pos), size);
-		if (ncopied + name_len + 1 < bsize) {
-			memcpy(buf, xb + pos, name_len * sizeof(YCHAR));
-			buf += name_len;
-			*buf = '\0';
-			buf++;
-			if (sizeof(YCHAR) > 1) {
-				*buf = '\0';
-				buf++;
-			}
-			ncopied += (name_len + 1);
-		} else {
-			filled = 1;
-		}
-		pos += size;
-		if (pos < xb_size - sizeof(int))
-			memcpy(&size, xb + pos, sizeof(int));
-		else
-			size = 0;
-	}
-	return ncopied;
-}
-
-int nval_hasvalues(const char *xb, int xb_size)
-{
-	return nval_used(xb, xb_size) > 0;
-}

fs/yaffs2/yaffs_nameval.h

@@ -1,28 +0,0 @@
-/*
- * YAFFS: Yet another Flash File System . A NAND-flash specific file system.
- *
- * Copyright (C) 2002-2011 Aleph One Ltd.
- *   for Toby Churchill Ltd and Brightstar Engineering
- *
- * Created by Charles Manning <charles@aleph1.co.uk>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU Lesser General Public License version 2.1 as
- * published by the Free Software Foundation.
- *
- * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL.
- */
-
-#ifndef __NAMEVAL_H__
-#define __NAMEVAL_H__
-
-#include "yportenv.h"
-
-int nval_del(char *xb, int xb_size, const YCHAR * name);
-int nval_set(char *xb, int xb_size, const YCHAR * name, const char *buf,
-	     int bsize, int flags);
-int nval_get(const char *xb, int xb_size, const YCHAR * name, char *buf,
-	     int bsize);
-int nval_list(const char *xb, int xb_size, char *buf, int bsize);
-int nval_hasvalues(const char *xb, int xb_size);
-#endif

fs/yaffs2/yaffs_nand.c

@@ -1,120 +0,0 @@
-/*
- * YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
- *
- * Copyright (C) 2002-2011 Aleph One Ltd.
- *   for Toby Churchill Ltd and Brightstar Engineering
- *
- * Created by Charles Manning <charles@aleph1.co.uk>
- *
- * 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 "yaffs_nand.h"
-#include "yaffs_tagscompat.h"
-
-#include "yaffs_getblockinfo.h"
-#include "yaffs_summary.h"
-
-int yaffs_rd_chunk_tags_nand(struct yaffs_dev *dev, int nand_chunk,
-			     u8 *buffer, struct yaffs_ext_tags *tags)
-{
-	int result;
-	struct yaffs_ext_tags local_tags;
-	int flash_chunk = nand_chunk - dev->chunk_offset;
-
-	dev->n_page_reads++;
-
-	/* If there are no tags provided use local tags. */
-	if (!tags)
-		tags = &local_tags;
-
-	if (dev->param.read_chunk_tags_fn)
-		result =
-		    dev->param.read_chunk_tags_fn(dev, flash_chunk, buffer,
-						  tags);
-	else
-		result = yaffs_tags_compat_rd(dev,
-					      flash_chunk, buffer, tags);
-	if (tags && tags->ecc_result > YAFFS_ECC_RESULT_NO_ERROR) {
-
-		struct yaffs_block_info *bi;
-		bi = yaffs_get_block_info(dev,
-					  nand_chunk /
-					  dev->param.chunks_per_block);
-		yaffs_handle_chunk_error(dev, bi);
-	}
-	return result;
-}
-
-int yaffs_wr_chunk_tags_nand(struct yaffs_dev *dev,
-				int nand_chunk,
-				const u8 *buffer, struct yaffs_ext_tags *tags)
-{
-	int result;
-	int flash_chunk = nand_chunk - dev->chunk_offset;
-
-	dev->n_page_writes++;
-
-	if (tags) {
-		tags->seq_number = dev->seq_number;
-		tags->chunk_used = 1;
-		yaffs_trace(YAFFS_TRACE_WRITE,
-			"Writing chunk %d tags %d %d",
-			nand_chunk, tags->obj_id, tags->chunk_id);
-	} else {
-		yaffs_trace(YAFFS_TRACE_ERROR, "Writing with no tags");
-		BUG();
-		return YAFFS_FAIL;
-	}
-
-	if (dev->param.write_chunk_tags_fn)
-		result = dev->param.write_chunk_tags_fn(dev, flash_chunk,
-							buffer, tags);
-	else
-		result = yaffs_tags_compat_wr(dev, flash_chunk, buffer, tags);
-
-	yaffs_summary_add(dev, tags, nand_chunk);
-
-	return result;
-}
-
-int yaffs_mark_bad(struct yaffs_dev *dev, int block_no)
-{
-	block_no -= dev->block_offset;
-	if (dev->param.bad_block_fn)
-		return dev->param.bad_block_fn(dev, block_no);
-
-	return yaffs_tags_compat_mark_bad(dev, block_no);
-}
-
-int yaffs_query_init_block_state(struct yaffs_dev *dev,
-				 int block_no,
-				 enum yaffs_block_state *state,
-				 u32 *seq_number)
-{
-	block_no -= dev->block_offset;
-	if (dev->param.query_block_fn)
-		return dev->param.query_block_fn(dev, block_no, state,
-						 seq_number);
-
-	return yaffs_tags_compat_query_block(dev, block_no, state, seq_number);
-}
-
-int yaffs_erase_block(struct yaffs_dev *dev, int flash_block)
-{
-	int result;
-
-	flash_block -= dev->block_offset;
-	dev->n_erasures++;
-	result = dev->param.erase_fn(dev, flash_block);
-	return result;
-}
-
-int yaffs_init_nand(struct yaffs_dev *dev)
-{
-	if (dev->param.initialise_flash_fn)
-		return dev->param.initialise_flash_fn(dev);
-	return YAFFS_OK;
-}

fs/yaffs2/yaffs_nand.h

@@ -1,38 +0,0 @@
-/*
- * YAFFS: Yet another Flash File System . A NAND-flash specific file system.
- *
- * Copyright (C) 2002-2011 Aleph One Ltd.
- *   for Toby Churchill Ltd and Brightstar Engineering
- *
- * Created by Charles Manning <charles@aleph1.co.uk>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU Lesser General Public License version 2.1 as
- * published by the Free Software Foundation.
- *
- * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL.
- */
-
-#ifndef __YAFFS_NAND_H__
-#define __YAFFS_NAND_H__
-#include "yaffs_guts.h"
-
-int yaffs_rd_chunk_tags_nand(struct yaffs_dev *dev, int nand_chunk,
-			     u8 *buffer, struct yaffs_ext_tags *tags);
-
-int yaffs_wr_chunk_tags_nand(struct yaffs_dev *dev,
-			     int nand_chunk,
-			     const u8 *buffer, struct yaffs_ext_tags *tags);
-
-int yaffs_mark_bad(struct yaffs_dev *dev, int block_no);
-
-int yaffs_query_init_block_state(struct yaffs_dev *dev,
-				 int block_no,
-				 enum yaffs_block_state *state,
-				 unsigned *seq_number);
-
-int yaffs_erase_block(struct yaffs_dev *dev, int flash_block);
-
-int yaffs_init_nand(struct yaffs_dev *dev);
-
-#endif

fs/yaffs2/yaffs_nandemul2k.h

@@ -1,39 +0,0 @@
-/*
- * YAFFS: Yet another Flash File System . A NAND-flash specific file system.
- *
- * Copyright (C) 2002-2011 Aleph One Ltd.
- *   for Toby Churchill Ltd and Brightstar Engineering
- *
- * Created by Charles Manning <charles@aleph1.co.uk>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU Lesser General Public License version 2.1 as
- * published by the Free Software Foundation.
- *
- * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL.
- */
-
-/* Interface to emulated NAND functions (2k page size) */
-
-#ifndef __YAFFS_NANDEMUL2K_H__
-#define __YAFFS_NANDEMUL2K_H__
-
-#include "yaffs_guts.h"
-
-int nandemul2k_WriteChunkWithTagsToNAND(struct yaffs_dev *dev,
-					int nand_chunk, const u8 *data,
-					const struct yaffs_ext_tags *tags);
-int nandemul2k_ReadChunkWithTagsFromNAND(struct yaffs_dev *dev,
-					 int nand_chunk, u8 *data,
-					 struct yaffs_ext_tags *tags);
-int nandemul2k_MarkNANDBlockBad(struct yaffs_dev *dev, int block_no);
-int nandemul2k_QueryNANDBlock(struct yaffs_dev *dev, int block_no,
-			      enum yaffs_block_state *state, u32 *seq_number);
-int nandemul2k_EraseBlockInNAND(struct yaffs_dev *dev,
-				int flash_block);
-int nandemul2k_InitialiseNAND(struct yaffs_dev *dev);
-int nandemul2k_GetBytesPerChunk(void);
-int nandemul2k_GetChunksPerBlock(void);
-int nandemul2k_GetNumberOfBlocks(void);
-
-#endif

fs/yaffs2/yaffs_nandif.c

@@ -1,246 +0,0 @@
-/*
- * YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
- *
- * Copyright (C) 2002-2011 Aleph One Ltd.
- *   for Toby Churchill Ltd and Brightstar Engineering
- *
- * Created by Charles Manning <charles@aleph1.co.uk>
- *
- * 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 "yportenv.h"
-#include "yaffs_guts.h"
-#include <malloc.h>
-
-#include "yaffs_nandif.h"
-#include "yaffs_packedtags2.h"
-
-#include "yramsim.h"
-
-#include "yaffs_trace.h"
-#include "yaffsfs.h"
-
-/* NB For use with inband tags....
- * We assume that the data buffer is of size totalBytersPerChunk so that
- * we can also use it to load the tags.
- */
-int ynandif_WriteChunkWithTagsToNAND(struct yaffs_dev *dev, int nand_chunk,
-				      const u8 *data,
-				      const struct yaffs_ext_tags *tags)
-{
-
-	int retval = 0;
-	struct yaffs_packed_tags2 pt;
-	void *spare;
-	unsigned spareSize = 0;
-	struct ynandif_Geometry *geometry = (struct ynandif_Geometry *)(dev->driver_context);
-
-	yaffs_trace(YAFFS_TRACE_MTD,
-		"nandmtd2_WriteChunkWithTagsToNAND chunk %d data %p tags %p",
-		nand_chunk, data, tags);
-
-	/* For yaffs2 writing there must be both data and tags.
-	 * If we're using inband tags, then the tags are stuffed into
-	 * the end of the data buffer.
-	 */
-
-	if (dev->param.inband_tags) {
-		struct yaffs_packed_tags2_tags_only *pt2tp;
-
-		pt2tp = (struct yaffs_packed_tags2_tags_only *)
-			(data + dev->data_bytes_per_chunk);
-		yaffs_pack_tags2_tags_only(pt2tp, tags);
-		spare = NULL;
-		spareSize = 0;
-	} else {
-		yaffs_pack_tags2(&pt, tags, !dev->param.no_tags_ecc);
-		spare = &pt;
-		spareSize = sizeof(struct yaffs_packed_tags2);
-	}
-
-	retval = geometry->writeChunk(dev, nand_chunk,
-				data, dev->param.total_bytes_per_chunk,
-				spare, spareSize);
-
-	return retval;
-}
-
-int ynandif_ReadChunkWithTagsFromNAND(struct yaffs_dev *dev, int nand_chunk,
-				       u8 *data, struct yaffs_ext_tags *tags)
-{
-	struct yaffs_packed_tags2 pt;
-	int localData = 0;
-	void *spare = NULL;
-	unsigned spareSize;
-	int retval = 0;
-	int eccStatus; /* 0 = ok, 1 = fixed, -1 = unfixed */
-	struct ynandif_Geometry *geometry = (struct ynandif_Geometry *)(dev->driver_context);
-
-	yaffs_trace(YAFFS_TRACE_MTD,
-		"nandmtd2_ReadChunkWithTagsFromNAND chunk %d data %p tags %p",
-		nand_chunk, data, tags);
-
-	if (!tags) {
-		spare = NULL;
-		spareSize = 0;
-	} else if (dev->param.inband_tags) {
-
-		if (!data) {
-			localData = 1;
-			data = yaffs_get_temp_buffer(dev);
-		}
-		spare = NULL;
-		spareSize = 0;
-	} else {
-		spare = &pt;
-		spareSize = sizeof(struct yaffs_packed_tags2);
-	}
-
-	retval = geometry->readChunk(dev, nand_chunk,
-				 data,
-				 data ? dev->param.total_bytes_per_chunk : 0,
-				 spare, spareSize,
-				 &eccStatus);
-
-	if (dev->param.inband_tags) {
-		if (tags) {
-			struct yaffs_packed_tags2_tags_only *pt2tp;
-			pt2tp = (struct yaffs_packed_tags2_tags_only *)
-					&data[dev->data_bytes_per_chunk];
-			yaffs_unpack_tags2_tags_only(tags, pt2tp);
-		}
-	} else {
-		if (tags)
-			yaffs_unpack_tags2(tags, &pt, !dev->param.no_tags_ecc);
-	}
-
-	if (tags && tags->chunk_used) {
-		if (eccStatus < 0 ||
-		   tags->ecc_result == YAFFS_ECC_RESULT_UNFIXED)
-			tags->ecc_result = YAFFS_ECC_RESULT_UNFIXED;
-		else if (eccStatus > 0 ||
-			     tags->ecc_result == YAFFS_ECC_RESULT_FIXED)
-			tags->ecc_result = YAFFS_ECC_RESULT_FIXED;
-		else
-			tags->ecc_result = YAFFS_ECC_RESULT_NO_ERROR;
-	}
-
-	if (localData)
-		yaffs_release_temp_buffer(dev, data);
-
-	return retval;
-}
-
-int ynandif_MarkNANDBlockBad(struct yaffs_dev *dev, int blockId)
-{
-	struct ynandif_Geometry *geometry = (struct ynandif_Geometry *)(dev->driver_context);
-
-	return geometry->markBlockBad(dev, blockId);
-}
-
-int ynandif_EraseBlockInNAND(struct yaffs_dev *dev, int blockId)
-{
-	struct ynandif_Geometry *geometry = (struct ynandif_Geometry *)(dev->driver_context);
-
-	return geometry->eraseBlock(dev, blockId);
-
-}
-
-static int ynandif_IsBlockOk(struct yaffs_dev *dev, int blockId)
-{
-	struct ynandif_Geometry *geometry = (struct ynandif_Geometry *)(dev->driver_context);
-
-	return geometry->checkBlockOk(dev, blockId);
-}
-
-int ynandif_QueryNANDBlock(struct yaffs_dev *dev, int blockId,
-		enum yaffs_block_state *state, u32 *seq_number)
-{
-	unsigned chunkNo;
-	struct yaffs_ext_tags tags;
-
-	*seq_number = 0;
-
-	chunkNo = blockId * dev->param.chunks_per_block;
-
-	if (!ynandif_IsBlockOk(dev, blockId)) {
-		*state = YAFFS_BLOCK_STATE_DEAD;
-	} else {
-		ynandif_ReadChunkWithTagsFromNAND(dev, chunkNo, NULL, &tags);
-
-		if (!tags.chunk_used) {
-			*state = YAFFS_BLOCK_STATE_EMPTY;
-		} else {
-			*state = YAFFS_BLOCK_STATE_NEEDS_SCAN;
-			*seq_number = tags.seq_number;
-		}
-	}
-
-	return YAFFS_OK;
-}
-
-int ynandif_InitialiseNAND(struct yaffs_dev *dev)
-{
-	struct ynandif_Geometry *geometry = (struct ynandif_Geometry *)(dev->driver_context);
-
-	geometry->initialise(dev);
-
-	return YAFFS_OK;
-}
-
-int ynandif_Deinitialise_flash_fn(struct yaffs_dev *dev)
-{
-	struct ynandif_Geometry *geometry = (struct ynandif_Geometry *)(dev->driver_context);
-
-	geometry->deinitialise(dev);
-
-	return YAFFS_OK;
-}
-
-struct yaffs_dev *
-	yaffs_add_dev_from_geometry(const YCHAR *name,
-					const struct ynandif_Geometry *geometry)
-{
-	YCHAR *clonedName = malloc(sizeof(YCHAR) *
-				(strnlen(name, YAFFS_MAX_NAME_LENGTH)+1));
-	struct yaffs_dev *dev = malloc(sizeof(struct yaffs_dev));
-	struct yaffs_param *param;
-
-	if (dev && clonedName) {
-		memset(dev, 0, sizeof(struct yaffs_dev));
-		strcpy(clonedName, name);
-
-		param = &dev->param;
-
-		param->name = clonedName;
-		param->write_chunk_tags_fn = ynandif_WriteChunkWithTagsToNAND;
-		param->read_chunk_tags_fn = ynandif_ReadChunkWithTagsFromNAND;
-		param->erase_fn = ynandif_EraseBlockInNAND;
-		param->initialise_flash_fn = ynandif_InitialiseNAND;
-		param->query_block_fn = ynandif_QueryNANDBlock;
-		param->bad_block_fn = ynandif_MarkNANDBlockBad;
-		param->n_caches = 20;
-		param->start_block = geometry->start_block;
-		param->end_block   = geometry->end_block;
-		param->total_bytes_per_chunk  = geometry->dataSize;
-		param->spare_bytes_per_chunk  = geometry->spareSize;
-		param->inband_tags		  = geometry->inband_tags;
-		param->chunks_per_block	  = geometry->pagesPerBlock;
-		param->use_nand_ecc		  = geometry->hasECC;
-		param->is_yaffs2		  = geometry->useYaffs2;
-		param->n_reserved_blocks	  = 5;
-		dev->driver_context		  = (void *)geometry;
-
-		yaffs_add_device(dev);
-
-		return dev;
-	}
-
-	free(dev);
-	free(clonedName);
-
-	return NULL;
-}

fs/yaffs2/yaffs_nandif.h

@@ -1,63 +0,0 @@
-/*
- * YAFFS: Yet another Flash File System . A NAND-flash specific file system.
- *
- * Copyright (C) 2002-2011 Aleph One Ltd.
- *   for Toby Churchill Ltd and Brightstar Engineering
- *
- * Created by Charles Manning <charles@aleph1.co.uk>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU Lesser General Public License version 2.1 as
- * published by the Free Software Foundation.
- *
- * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL.
- */
-
-#ifndef __YNANDIF_H__
-#define __YNANDIF_H__
-
-#include "yaffs_guts.h"
-
-struct ynandif_Geometry {
-	unsigned start_block;
-	unsigned end_block;
-	unsigned dataSize;
-	unsigned spareSize;
-	unsigned pagesPerBlock;
-	unsigned hasECC;
-	unsigned inband_tags;
-	unsigned useYaffs2;
-
-	int (*initialise)(struct yaffs_dev *dev);
-	int (*deinitialise)(struct yaffs_dev *dev);
-
-	int (*readChunk) (struct yaffs_dev *dev,
-					  unsigned pageId,
-					  unsigned char *data,
-					  unsigned dataLength,
-					  unsigned char *spare,
-					  unsigned spareLength,
-					  int *eccStatus);
-	/* ECC status is set to 0 for OK, 1 for fixed, -1 for unfixed. */
-
-	int (*writeChunk)(struct yaffs_dev *dev,
-					  unsigned pageId,
-					  const unsigned char *data,
-					  unsigned dataLength,
-					  const unsigned char *spare,
-					  unsigned spareLength);
-
-	int (*eraseBlock)(struct yaffs_dev *dev, unsigned blockId);
-
-	int (*checkBlockOk)(struct yaffs_dev *dev, unsigned blockId);
-	int (*markBlockBad)(struct yaffs_dev *dev, unsigned blockId);
-
-	void *privateData;
-
-};
-
-struct yaffs_dev *
-	yaffs_add_dev_from_geometry(const YCHAR *name,
-					const struct ynandif_Geometry *geometry);
-
-#endif

fs/yaffs2/yaffs_osglue.h

@@ -1,38 +0,0 @@
-/*
- * YAFFS: Yet another Flash File System . A NAND-flash specific file system.
- *
- * Copyright (C) 2002-2011 Aleph One Ltd.
- *   for Toby Churchill Ltd and Brightstar Engineering
- *
- * Created by Charles Manning <charles@aleph1.co.uk>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU Lesser General Public License version 2.1 as
- * published by the Free Software Foundation.
- *
- * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL.
- */
-
-/*
- * Header file for using yaffs in an application via
- * a direct interface.
- */
-
-#ifndef __YAFFS_OSGLUE_H__
-#define __YAFFS_OSGLUE_H__
-
-#include "yportenv.h"
-
-void yaffsfs_Lock(void);
-void yaffsfs_Unlock(void);
-
-u32 yaffsfs_CurrentTime(void);
-
-void yaffsfs_SetError(int err);
-
-void *yaffsfs_malloc(size_t size);
-void yaffsfs_free(void *ptr);
-
-void yaffsfs_OSInitialisation(void);
-
-#endif

fs/yaffs2/yaffs_packedtags1.c

@@ -1,56 +0,0 @@
-/*
- * YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
- *
- * Copyright (C) 2002-2011 Aleph One Ltd.
- *   for Toby Churchill Ltd and Brightstar Engineering
- *
- * Created by Charles Manning <charles@aleph1.co.uk>
- *
- * 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 "yaffs_packedtags1.h"
-#include "yportenv.h"
-
-static const u8 all_ff[20] = {
-	0xff, 0xff, 0xff, 0xff,
-	0xff, 0xff, 0xff, 0xff,
-	0xff, 0xff, 0xff, 0xff,
-	0xff, 0xff, 0xff, 0xff,
-	0xff, 0xff, 0xff, 0xff
-};
-
-void yaffs_pack_tags1(struct yaffs_packed_tags1 *pt,
-		      const struct yaffs_ext_tags *t)
-{
-	pt->chunk_id = t->chunk_id;
-	pt->serial_number = t->serial_number;
-	pt->n_bytes = t->n_bytes;
-	pt->obj_id = t->obj_id;
-	pt->ecc = 0;
-	pt->deleted = (t->is_deleted) ? 0 : 1;
-	pt->unused_stuff = 0;
-	pt->should_be_ff = 0xffffffff;
-}
-
-void yaffs_unpack_tags1(struct yaffs_ext_tags *t,
-			const struct yaffs_packed_tags1 *pt)
-{
-
-	if (memcmp(all_ff, pt, sizeof(struct yaffs_packed_tags1))) {
-		t->block_bad = 0;
-		if (pt->should_be_ff != 0xffffffff)
-			t->block_bad = 1;
-		t->chunk_used = 1;
-		t->obj_id = pt->obj_id;
-		t->chunk_id = pt->chunk_id;
-		t->n_bytes = pt->n_bytes;
-		t->ecc_result = YAFFS_ECC_RESULT_NO_ERROR;
-		t->is_deleted = (pt->deleted) ? 0 : 1;
-		t->serial_number = pt->serial_number;
-	} else {
-		memset(t, 0, sizeof(struct yaffs_ext_tags));
-	}
-}

fs/yaffs2/yaffs_packedtags1.h

@@ -1,39 +0,0 @@
-/*
- * YAFFS: Yet another Flash File System . A NAND-flash specific file system.
- *
- * Copyright (C) 2002-2011 Aleph One Ltd.
- *   for Toby Churchill Ltd and Brightstar Engineering
- *
- * Created by Charles Manning <charles@aleph1.co.uk>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU Lesser General Public License version 2.1 as
- * published by the Free Software Foundation.
- *
- * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL.
- */
-
-/* This is used to pack YAFFS1 tags, not YAFFS2 tags. */
-
-#ifndef __YAFFS_PACKEDTAGS1_H__
-#define __YAFFS_PACKEDTAGS1_H__
-
-#include "yaffs_guts.h"
-
-struct yaffs_packed_tags1 {
-	unsigned chunk_id:20;
-	unsigned serial_number:2;
-	unsigned n_bytes:10;
-	unsigned obj_id:18;
-	unsigned ecc:12;
-	unsigned deleted:1;
-	unsigned unused_stuff:1;
-	unsigned should_be_ff;
-
-};
-
-void yaffs_pack_tags1(struct yaffs_packed_tags1 *pt,
-		      const struct yaffs_ext_tags *t);
-void yaffs_unpack_tags1(struct yaffs_ext_tags *t,
-			const struct yaffs_packed_tags1 *pt);
-#endif

fs/yaffs2/yaffs_packedtags2.c

@@ -1,197 +0,0 @@
-/*
- * YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
- *
- * Copyright (C) 2002-2011 Aleph One Ltd.
- *   for Toby Churchill Ltd and Brightstar Engineering
- *
- * Created by Charles Manning <charles@aleph1.co.uk>
- *
- * 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 "yaffs_packedtags2.h"
-#include "yportenv.h"
-#include "yaffs_trace.h"
-
-/* This code packs a set of extended tags into a binary structure for
- * NAND storage
- */
-
-/* Some of the information is "extra" struff which can be packed in to
- * speed scanning
- * This is defined by having the EXTRA_HEADER_INFO_FLAG set.
- */
-
-/* Extra flags applied to chunk_id */
-
-#define EXTRA_HEADER_INFO_FLAG	0x80000000
-#define EXTRA_SHRINK_FLAG	0x40000000
-#define EXTRA_SHADOWS_FLAG	0x20000000
-#define EXTRA_SPARE_FLAGS	0x10000000
-
-#define ALL_EXTRA_FLAGS		0xf0000000
-
-/* Also, the top 4 bits of the object Id are set to the object type. */
-#define EXTRA_OBJECT_TYPE_SHIFT (28)
-#define EXTRA_OBJECT_TYPE_MASK  ((0x0f) << EXTRA_OBJECT_TYPE_SHIFT)
-
-static void yaffs_dump_packed_tags2_tags_only(
-				const struct yaffs_packed_tags2_tags_only *ptt)
-{
-	yaffs_trace(YAFFS_TRACE_MTD,
-		"packed tags obj %d chunk %d byte %d seq %d",
-		ptt->obj_id, ptt->chunk_id, ptt->n_bytes, ptt->seq_number);
-}
-
-static void yaffs_dump_packed_tags2(const struct yaffs_packed_tags2 *pt)
-{
-	yaffs_dump_packed_tags2_tags_only(&pt->t);
-}
-
-static void yaffs_dump_tags2(const struct yaffs_ext_tags *t)
-{
-	yaffs_trace(YAFFS_TRACE_MTD,
-		"ext.tags eccres %d blkbad %d chused %d obj %d chunk%d byte %d del %d ser %d seq %d",
-		t->ecc_result, t->block_bad, t->chunk_used, t->obj_id,
-		t->chunk_id, t->n_bytes, t->is_deleted, t->serial_number,
-		t->seq_number);
-
-}
-
-static int yaffs_check_tags_extra_packable(const struct yaffs_ext_tags *t)
-{
-	if (t->chunk_id != 0 || !t->extra_available)
-		return 0;
-
-	/* Check if the file size is too long to store */
-	if (t->extra_obj_type == YAFFS_OBJECT_TYPE_FILE &&
-	    (t->extra_file_size >> 31) != 0)
-		return 0;
-	return 1;
-}
-
-void yaffs_pack_tags2_tags_only(struct yaffs_packed_tags2_tags_only *ptt,
-				const struct yaffs_ext_tags *t)
-{
-	ptt->chunk_id = t->chunk_id;
-	ptt->seq_number = t->seq_number;
-	ptt->n_bytes = t->n_bytes;
-	ptt->obj_id = t->obj_id;
-
-	/* Only store extra tags for object headers.
-	 * If it is a file then only store  if the file size is short\
-	 * enough to fit.
-	 */
-	if (yaffs_check_tags_extra_packable(t)) {
-		/* Store the extra header info instead */
-		/* We save the parent object in the chunk_id */
-		ptt->chunk_id = EXTRA_HEADER_INFO_FLAG | t->extra_parent_id;
-		if (t->extra_is_shrink)
-			ptt->chunk_id |= EXTRA_SHRINK_FLAG;
-		if (t->extra_shadows)
-			ptt->chunk_id |= EXTRA_SHADOWS_FLAG;
-
-		ptt->obj_id &= ~EXTRA_OBJECT_TYPE_MASK;
-		ptt->obj_id |= (t->extra_obj_type << EXTRA_OBJECT_TYPE_SHIFT);
-
-		if (t->extra_obj_type == YAFFS_OBJECT_TYPE_HARDLINK)
-			ptt->n_bytes = t->extra_equiv_id;
-		else if (t->extra_obj_type == YAFFS_OBJECT_TYPE_FILE)
-			ptt->n_bytes = (unsigned) t->extra_file_size;
-		else
-			ptt->n_bytes = 0;
-	}
-
-	yaffs_dump_packed_tags2_tags_only(ptt);
-	yaffs_dump_tags2(t);
-}
-
-void yaffs_pack_tags2(struct yaffs_packed_tags2 *pt,
-		      const struct yaffs_ext_tags *t, int tags_ecc)
-{
-	yaffs_pack_tags2_tags_only(&pt->t, t);
-
-	if (tags_ecc)
-		yaffs_ecc_calc_other((unsigned char *)&pt->t,
-				    sizeof(struct yaffs_packed_tags2_tags_only),
-				    &pt->ecc);
-}
-
-void yaffs_unpack_tags2_tags_only(struct yaffs_ext_tags *t,
-				  struct yaffs_packed_tags2_tags_only *ptt)
-{
-	memset(t, 0, sizeof(struct yaffs_ext_tags));
-
-	if (ptt->seq_number == 0xffffffff)
-		return;
-
-	t->block_bad = 0;
-	t->chunk_used = 1;
-	t->obj_id = ptt->obj_id;
-	t->chunk_id = ptt->chunk_id;
-	t->n_bytes = ptt->n_bytes;
-	t->is_deleted = 0;
-	t->serial_number = 0;
-	t->seq_number = ptt->seq_number;
-
-	/* Do extra header info stuff */
-	if (ptt->chunk_id & EXTRA_HEADER_INFO_FLAG) {
-		t->chunk_id = 0;
-		t->n_bytes = 0;
-
-		t->extra_available = 1;
-		t->extra_parent_id = ptt->chunk_id & (~(ALL_EXTRA_FLAGS));
-		t->extra_is_shrink = ptt->chunk_id & EXTRA_SHRINK_FLAG ? 1 : 0;
-		t->extra_shadows = ptt->chunk_id & EXTRA_SHADOWS_FLAG ? 1 : 0;
-		t->extra_obj_type = ptt->obj_id >> EXTRA_OBJECT_TYPE_SHIFT;
-		t->obj_id &= ~EXTRA_OBJECT_TYPE_MASK;
-
-		if (t->extra_obj_type == YAFFS_OBJECT_TYPE_HARDLINK)
-			t->extra_equiv_id = ptt->n_bytes;
-		else
-			t->extra_file_size = ptt->n_bytes;
-	}
-	yaffs_dump_packed_tags2_tags_only(ptt);
-	yaffs_dump_tags2(t);
-}
-
-void yaffs_unpack_tags2(struct yaffs_ext_tags *t, struct yaffs_packed_tags2 *pt,
-			int tags_ecc)
-{
-	enum yaffs_ecc_result ecc_result = YAFFS_ECC_RESULT_NO_ERROR;
-
-	if (pt->t.seq_number != 0xffffffff && tags_ecc) {
-		/* Chunk is in use and we need to do ECC */
-
-		struct yaffs_ecc_other ecc;
-		int result;
-		yaffs_ecc_calc_other((unsigned char *)&pt->t,
-				sizeof(struct yaffs_packed_tags2_tags_only),
-				&ecc);
-		result =
-		    yaffs_ecc_correct_other((unsigned char *)&pt->t,
-				sizeof(struct yaffs_packed_tags2_tags_only),
-				&pt->ecc, &ecc);
-		switch (result) {
-		case 0:
-			ecc_result = YAFFS_ECC_RESULT_NO_ERROR;
-			break;
-		case 1:
-			ecc_result = YAFFS_ECC_RESULT_FIXED;
-			break;
-		case -1:
-			ecc_result = YAFFS_ECC_RESULT_UNFIXED;
-			break;
-		default:
-			ecc_result = YAFFS_ECC_RESULT_UNKNOWN;
-		}
-	}
-	yaffs_unpack_tags2_tags_only(t, &pt->t);
-
-	t->ecc_result = ecc_result;
-
-	yaffs_dump_packed_tags2(pt);
-	yaffs_dump_tags2(t);
-}

fs/yaffs2/yaffs_packedtags2.h

@@ -1,47 +0,0 @@
-/*
- * YAFFS: Yet another Flash File System . A NAND-flash specific file system.
- *
- * Copyright (C) 2002-2011 Aleph One Ltd.
- *   for Toby Churchill Ltd and Brightstar Engineering
- *
- * Created by Charles Manning <charles@aleph1.co.uk>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU Lesser General Public License version 2.1 as
- * published by the Free Software Foundation.
- *
- * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL.
- */
-
-/* This is used to pack YAFFS2 tags, not YAFFS1tags. */
-
-#ifndef __YAFFS_PACKEDTAGS2_H__
-#define __YAFFS_PACKEDTAGS2_H__
-
-#include "yaffs_guts.h"
-#include "yaffs_ecc.h"
-
-struct yaffs_packed_tags2_tags_only {
-	unsigned seq_number;
-	unsigned obj_id;
-	unsigned chunk_id;
-	unsigned n_bytes;
-};
-
-struct yaffs_packed_tags2 {
-	struct yaffs_packed_tags2_tags_only t;
-	struct yaffs_ecc_other ecc;
-};
-
-/* Full packed tags with ECC, used for oob tags */
-void yaffs_pack_tags2(struct yaffs_packed_tags2 *pt,
-		      const struct yaffs_ext_tags *t, int tags_ecc);
-void yaffs_unpack_tags2(struct yaffs_ext_tags *t, struct yaffs_packed_tags2 *pt,
-			int tags_ecc);
-
-/* Only the tags part (no ECC for use with inband tags */
-void yaffs_pack_tags2_tags_only(struct yaffs_packed_tags2_tags_only *pt,
-				const struct yaffs_ext_tags *t);
-void yaffs_unpack_tags2_tags_only(struct yaffs_ext_tags *t,
-				  struct yaffs_packed_tags2_tags_only *pt);
-#endif

fs/yaffs2/yaffs_qsort.c

@@ -1,141 +0,0 @@
-// SPDX-License-Identifier: BSD-3-Clause
-/*
- * Copyright (c) 1992, 1993
- *	The Regents of the University of California.  All rights reserved.
- */
-
-#include "yportenv.h"
-#include <sort.h>
-/* #include <linux/string.h> */
-
-/*
- * Qsort routine from Bentley & McIlroy's "Engineering a Sort Function".
- */
-#define swapcode(TYPE, parmi, parmj, n) do {		\
-	long i = (n) / sizeof(TYPE);			\
-	register TYPE *pi = (TYPE *) (parmi);		\
-	register TYPE *pj = (TYPE *) (parmj);		\
-	do {						\
-		register TYPE	t = *pi;		\
-		*pi++ = *pj;				\
-		*pj++ = t;				\
-	} while (--i > 0);				\
-} while (0)
-
-#define SWAPINIT(a, es) swaptype = ((char *)a - (char *)0) % sizeof(long) || \
-	es % sizeof(long) ? 2 : es == sizeof(long) ? 0 : 1;
-
-static inline void
-swapfunc(char *a, char *b, int n, int swaptype)
-{
-	if (swaptype <= 1)
-		swapcode(long, a, b, n);
-	else
-		swapcode(char, a, b, n);
-}
-
-#define yswap(a, b) do {					\
-	if (swaptype == 0) {				\
-		long t = *(long *)(a);			\
-		*(long *)(a) = *(long *)(b);		\
-		*(long *)(b) = t;			\
-	} else						\
-		swapfunc(a, b, es, swaptype);		\
-} while (0)
-
-#define vecswap(a, b, n)	if ((n) > 0) swapfunc(a, b, n, swaptype)
-
-static inline char *
-med3(char *a, char *b, char *c, int (*cmp)(const void *, const void *))
-{
-	return cmp(a, b) < 0 ?
-		(cmp(b, c) < 0 ? b : (cmp(a, c) < 0 ? c : a))
-		: (cmp(b, c) > 0 ? b : (cmp(a, c) < 0 ? a : c));
-}
-
-#ifndef min
-#define min(a, b) (((a) < (b)) ? (a) : (b))
-#endif
-
-void
-yaffs_qsort(void *aa, size_t n, size_t es,
-	int (*cmp)(const void *, const void *))
-{
-	char *pa, *pb, *pc, *pd, *pl, *pm, *pn;
-	int d, r, swaptype, swap_cnt;
-	register char *a = aa;
-
-loop:	SWAPINIT(a, es);
-	swap_cnt = 0;
-	if (n < 7) {
-		for (pm = (char *)a + es; pm < (char *) a + n * es; pm += es)
-			for (pl = pm; pl > (char *) a && cmp(pl - es, pl) > 0;
-			     pl -= es)
-				yswap(pl, pl - es);
-		return;
-	}
-	pm = (char *)a + (n / 2) * es;
-	if (n > 7) {
-		pl = (char *)a;
-		pn = (char *)a + (n - 1) * es;
-		if (n > 40) {
-			d = (n / 8) * es;
-			pl = med3(pl, pl + d, pl + 2 * d, cmp);
-			pm = med3(pm - d, pm, pm + d, cmp);
-			pn = med3(pn - 2 * d, pn - d, pn, cmp);
-		}
-		pm = med3(pl, pm, pn, cmp);
-	}
-	yswap(a, pm);
-	pa = pb = (char *)a + es;
-
-	pc = pd = (char *)a + (n - 1) * es;
-	for (;;) {
-		while (pb <= pc && (r = cmp(pb, a)) <= 0) {
-			if (r == 0) {
-				swap_cnt = 1;
-				yswap(pa, pb);
-				pa += es;
-			}
-			pb += es;
-		}
-		while (pb <= pc && (r = cmp(pc, a)) >= 0) {
-			if (r == 0) {
-				swap_cnt = 1;
-				yswap(pc, pd);
-				pd -= es;
-			}
-			pc -= es;
-		}
-		if (pb > pc)
-			break;
-		yswap(pb, pc);
-		swap_cnt = 1;
-		pb += es;
-		pc -= es;
-	}
-	if (swap_cnt == 0) {  /* Switch to insertion sort */
-		for (pm = (char *) a + es; pm < (char *) a + n * es; pm += es)
-			for (pl = pm; pl > (char *) a && cmp(pl - es, pl) > 0;
-			     pl -= es)
-				yswap(pl, pl - es);
-		return;
-	}
-
-	pn = (char *)a + n * es;
-	r = min(pa - (char *)a, pb - pa);
-	vecswap(a, pb - r, r);
-	r = min((long)(pd - pc), (long)(pn - pd - es));
-	vecswap(pb, pn - r, r);
-	r = pb - pa;
-	if (r > es)
-		yaffs_qsort(a, r / es, es, cmp);
-	r = pd - pc;
-	if (r > es) {
-		/* Iterate rather than recurse to save stack space */
-		a = pn - r;
-		n = r / es;
-		goto loop;
-	}
-/*		yaffs_qsort(pn - r, r / es, es, cmp);*/
-}

fs/yaffs2/yaffs_summary.c

@@ -1,306 +0,0 @@
-/*
- * YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
- *
- * Copyright (C) 2002-2011 Aleph One Ltd.
- *   for Toby Churchill Ltd and Brightstar Engineering
- *
- * Created by Charles Manning <charles@aleph1.co.uk>
- *
- * 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.
- */
-
-/* Summaries write the useful part of the tags for the chunks in a block into an
- * an array which is written to the last n chunks of the block.
- * Reading the summaries gives all the tags for the block in one read. Much
- * faster.
- *
- * Chunks holding summaries are marked with tags making it look like
- * they are part of a fake file.
- *
- * The summary could also be used during gc.
- *
- */
-
-#include "yaffs_summary.h"
-#include "yaffs_packedtags2.h"
-#include "yaffs_nand.h"
-#include "yaffs_getblockinfo.h"
-#include "yaffs_bitmap.h"
-#include <dm/devres.h>
-
-/*
- * The summary is built up in an array of summary tags.
- * This gets written to the last one or two (maybe more) chunks in a block.
- * A summary header is written as the first part of each chunk of summary data.
- * The summary header must match or the summary is rejected.
- */
-
-/* Summary tags don't need the sequence number because that is redundant. */
-struct yaffs_summary_tags {
-	unsigned obj_id;
-	unsigned chunk_id;
-	unsigned n_bytes;
-};
-
-/* Summary header */
-struct yaffs_summary_header {
-	unsigned version;	/* Must match current version */
-	unsigned block;		/* Must be this block */
-	unsigned seq;		/* Must be this sequence number */
-	unsigned sum;		/* Just add up all the bytes in the tags */
-};
-
-static void yaffs_summary_clear(struct yaffs_dev *dev)
-{
-	if (!dev->sum_tags)
-		return;
-	memset(dev->sum_tags, 0, dev->chunks_per_summary *
-		sizeof(struct yaffs_summary_tags));
-}
-
-void yaffs_summary_deinit(struct yaffs_dev *dev)
-{
-	kfree(dev->sum_tags);
-	dev->sum_tags = NULL;
-	kfree(dev->gc_sum_tags);
-	dev->gc_sum_tags = NULL;
-	dev->chunks_per_summary = 0;
-}
-
-int yaffs_summary_init(struct yaffs_dev *dev)
-{
-	int sum_bytes;
-	int chunks_used; /* Number of chunks used by summary */
-	int sum_tags_bytes;
-
-	sum_bytes = dev->param.chunks_per_block *
-			sizeof(struct yaffs_summary_tags);
-
-	chunks_used = (sum_bytes + dev->data_bytes_per_chunk - 1)/
-			(dev->data_bytes_per_chunk -
-				sizeof(struct yaffs_summary_header));
-
-	dev->chunks_per_summary = dev->param.chunks_per_block - chunks_used;
-	sum_tags_bytes = sizeof(struct yaffs_summary_tags) *
-				dev->chunks_per_summary;
-	dev->sum_tags = kmalloc(sum_tags_bytes, GFP_NOFS);
-	dev->gc_sum_tags = kmalloc(sum_tags_bytes, GFP_NOFS);
-	if (!dev->sum_tags || !dev->gc_sum_tags) {
-		yaffs_summary_deinit(dev);
-		return YAFFS_FAIL;
-	}
-
-	yaffs_summary_clear(dev);
-
-	return YAFFS_OK;
-}
-
-static unsigned yaffs_summary_sum(struct yaffs_dev *dev)
-{
-	u8 *sum_buffer = (u8 *)dev->sum_tags;
-	int i;
-	unsigned sum = 0;
-
-	i = sizeof(struct yaffs_summary_tags) *
-				dev->chunks_per_summary;
-	while (i > 0) {
-		sum += *sum_buffer;
-		sum_buffer++;
-		i--;
-	}
-
-	return sum;
-}
-
-static int yaffs_summary_write(struct yaffs_dev *dev, int blk)
-{
-	struct yaffs_ext_tags tags;
-	u8 *buffer;
-	u8 *sum_buffer = (u8 *)dev->sum_tags;
-	int n_bytes;
-	int chunk_in_nand;
-	int chunk_in_block;
-	int result;
-	int this_tx;
-	struct yaffs_summary_header hdr;
-	int sum_bytes_per_chunk = dev->data_bytes_per_chunk - sizeof(hdr);
-	struct yaffs_block_info *bi = yaffs_get_block_info(dev, blk);
-
-	buffer = yaffs_get_temp_buffer(dev);
-	n_bytes = sizeof(struct yaffs_summary_tags) *
-				dev->chunks_per_summary;
-	memset(&tags, 0, sizeof(struct yaffs_ext_tags));
-	tags.obj_id = YAFFS_OBJECTID_SUMMARY;
-	tags.chunk_id = 1;
-	chunk_in_block = dev->chunks_per_summary;
-	chunk_in_nand = dev->alloc_block * dev->param.chunks_per_block +
-						dev->chunks_per_summary;
-	hdr.version = YAFFS_SUMMARY_VERSION;
-	hdr.block = blk;
-	hdr.seq = bi->seq_number;
-	hdr.sum = yaffs_summary_sum(dev);
-
-	do {
-		this_tx = n_bytes;
-		if (this_tx > sum_bytes_per_chunk)
-			this_tx = sum_bytes_per_chunk;
-		memcpy(buffer, &hdr, sizeof(hdr));
-		memcpy(buffer + sizeof(hdr), sum_buffer, this_tx);
-		tags.n_bytes = this_tx + sizeof(hdr);
-		result = yaffs_wr_chunk_tags_nand(dev, chunk_in_nand,
-						buffer, &tags);
-
-		if (result != YAFFS_OK)
-			break;
-		yaffs_set_chunk_bit(dev, blk, chunk_in_block);
-		bi->pages_in_use++;
-		dev->n_free_chunks--;
-
-		n_bytes -= this_tx;
-		sum_buffer += this_tx;
-		chunk_in_nand++;
-		chunk_in_block++;
-		tags.chunk_id++;
-	} while (result == YAFFS_OK && n_bytes > 0);
-	yaffs_release_temp_buffer(dev, buffer);
-
-	if (result == YAFFS_OK)
-		bi->has_summary = 1;
-
-	return result;
-}
-
-int yaffs_summary_read(struct yaffs_dev *dev,
-			struct yaffs_summary_tags *st,
-			int blk)
-{
-	struct yaffs_ext_tags tags;
-	u8 *buffer;
-	u8 *sum_buffer = (u8 *)st;
-	int n_bytes;
-	int chunk_id;
-	int chunk_in_nand;
-	int chunk_in_block;
-	int result;
-	int this_tx;
-	struct yaffs_summary_header hdr;
-	struct yaffs_block_info *bi = yaffs_get_block_info(dev, blk);
-	int sum_bytes_per_chunk = dev->data_bytes_per_chunk - sizeof(hdr);
-
-	buffer = yaffs_get_temp_buffer(dev);
-	n_bytes = sizeof(struct yaffs_summary_tags) * dev->chunks_per_summary;
-	chunk_in_block = dev->chunks_per_summary;
-	chunk_in_nand = blk * dev->param.chunks_per_block +
-							dev->chunks_per_summary;
-	chunk_id = 1;
-	do {
-		this_tx = n_bytes;
-		if (this_tx > sum_bytes_per_chunk)
-			this_tx = sum_bytes_per_chunk;
-		result = yaffs_rd_chunk_tags_nand(dev, chunk_in_nand,
-						buffer, &tags);
-
-		if (tags.chunk_id != chunk_id ||
-			tags.obj_id != YAFFS_OBJECTID_SUMMARY ||
-			tags.chunk_used == 0 ||
-			tags.ecc_result > YAFFS_ECC_RESULT_FIXED ||
-			tags.n_bytes != (this_tx + sizeof(hdr)))
-				result = YAFFS_FAIL;
-		if (result != YAFFS_OK)
-			break;
-
-		if (st == dev->sum_tags) {
-			/* If we're scanning then update the block info */
-			yaffs_set_chunk_bit(dev, blk, chunk_in_block);
-			bi->pages_in_use++;
-		}
-		memcpy(&hdr, buffer, sizeof(hdr));
-		memcpy(sum_buffer, buffer + sizeof(hdr), this_tx);
-		n_bytes -= this_tx;
-		sum_buffer += this_tx;
-		chunk_in_nand++;
-		chunk_in_block++;
-		chunk_id++;
-	} while (result == YAFFS_OK && n_bytes > 0);
-	yaffs_release_temp_buffer(dev, buffer);
-
-	if (result == YAFFS_OK) {
-		/* Verify header */
-		if (hdr.version != YAFFS_SUMMARY_VERSION ||
-		    hdr.seq != bi->seq_number ||
-		    hdr.sum != yaffs_summary_sum(dev))
-			result = YAFFS_FAIL;
-	}
-
-	if (st == dev->sum_tags && result == YAFFS_OK)
-		bi->has_summary = 1;
-
-	return result;
-}
-
-int yaffs_summary_add(struct yaffs_dev *dev,
-			struct yaffs_ext_tags *tags,
-			int chunk_in_nand)
-{
-	struct yaffs_packed_tags2_tags_only tags_only;
-	struct yaffs_summary_tags *sum_tags;
-	int block_in_nand = chunk_in_nand / dev->param.chunks_per_block;
-	int chunk_in_block = chunk_in_nand % dev->param.chunks_per_block;
-
-	if (!dev->sum_tags)
-		return YAFFS_OK;
-
-	if (chunk_in_block >= 0 && chunk_in_block < dev->chunks_per_summary) {
-		yaffs_pack_tags2_tags_only(&tags_only, tags);
-		sum_tags = &dev->sum_tags[chunk_in_block];
-		sum_tags->chunk_id = tags_only.chunk_id;
-		sum_tags->n_bytes = tags_only.n_bytes;
-		sum_tags->obj_id = tags_only.obj_id;
-
-		if (chunk_in_block == dev->chunks_per_summary - 1) {
-			/* Time to write out the summary */
-			yaffs_summary_write(dev, block_in_nand);
-			yaffs_summary_clear(dev);
-			yaffs_skip_rest_of_block(dev);
-		}
-	}
-	return YAFFS_OK;
-}
-
-int yaffs_summary_fetch(struct yaffs_dev *dev,
-			struct yaffs_ext_tags *tags,
-			int chunk_in_block)
-{
-	struct yaffs_packed_tags2_tags_only tags_only;
-	struct yaffs_summary_tags *sum_tags;
-	if (chunk_in_block >= 0 && chunk_in_block < dev->chunks_per_summary) {
-		sum_tags = &dev->sum_tags[chunk_in_block];
-		tags_only.chunk_id = sum_tags->chunk_id;
-		tags_only.n_bytes = sum_tags->n_bytes;
-		tags_only.obj_id = sum_tags->obj_id;
-		yaffs_unpack_tags2_tags_only(tags, &tags_only);
-		return YAFFS_OK;
-	}
-	return YAFFS_FAIL;
-}
-
-void yaffs_summary_gc(struct yaffs_dev *dev, int blk)
-{
-	struct yaffs_block_info *bi = yaffs_get_block_info(dev, blk);
-	int i;
-
-	if (!bi->has_summary)
-		return;
-
-	for (i = dev->chunks_per_summary;
-	     i < dev->param.chunks_per_block;
-	     i++) {
-		if (yaffs_check_chunk_bit(dev, blk, i)) {
-			yaffs_clear_chunk_bit(dev, blk, i);
-			bi->pages_in_use--;
-			dev->n_free_chunks++;
-		}
-	}
-}

fs/yaffs2/yaffs_summary.h

@@ -1,35 +0,0 @@
-/*
- * YAFFS: Yet another Flash File System . A NAND-flash specific file system.
- *
- * Copyright (C) 2002-2011 Aleph One Ltd.
- *   for Toby Churchill Ltd and Brightstar Engineering
- *
- * Created by Charles Manning <charles@aleph1.co.uk>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU Lesser General Public License version 2.1 as
- * published by the Free Software Foundation.
- *
- * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL.
- */
-
-#ifndef __YAFFS_SUMMARY_H__
-#define __YAFFS_SUMMARY_H__
-
-#include "yaffs_packedtags2.h"
-
-int yaffs_summary_init(struct yaffs_dev *dev);
-void yaffs_summary_deinit(struct yaffs_dev *dev);
-
-int yaffs_summary_add(struct yaffs_dev *dev,
-			struct yaffs_ext_tags *tags,
-			int chunk_in_block);
-int yaffs_summary_fetch(struct yaffs_dev *dev,
-			struct yaffs_ext_tags *tags,
-			int chunk_in_block);
-int yaffs_summary_read(struct yaffs_dev *dev,
-			struct yaffs_summary_tags *st,
-			int blk);
-void yaffs_summary_gc(struct yaffs_dev *dev, int blk);
-
-#endif

fs/yaffs2/yaffs_tagscompat.c

@@ -1,406 +0,0 @@
-/*
- * YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
- *
- * Copyright (C) 2002-2011 Aleph One Ltd.
- *   for Toby Churchill Ltd and Brightstar Engineering
- *
- * Created by Charles Manning <charles@aleph1.co.uk>
- *
- * 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 "yaffs_guts.h"
-#include "yaffs_tagscompat.h"
-#include "yaffs_ecc.h"
-#include "yaffs_getblockinfo.h"
-#include "yaffs_trace.h"
-
-static void yaffs_handle_rd_data_error(struct yaffs_dev *dev, int nand_chunk);
-
-/********** Tags ECC calculations  *********/
-
-void yaffs_calc_ecc(const u8 *data, struct yaffs_spare *spare)
-{
-	yaffs_ecc_calc(data, spare->ecc1);
-	yaffs_ecc_calc(&data[256], spare->ecc2);
-}
-
-void yaffs_calc_tags_ecc(struct yaffs_tags *tags)
-{
-	/* Calculate an ecc */
-	unsigned char *b = ((union yaffs_tags_union *)tags)->as_bytes;
-	unsigned i, j;
-	unsigned ecc = 0;
-	unsigned bit = 0;
-
-	tags->ecc = 0;
-
-	for (i = 0; i < 8; i++) {
-		for (j = 1; j & 0xff; j <<= 1) {
-			bit++;
-			if (b[i] & j)
-				ecc ^= bit;
-		}
-	}
-	tags->ecc = ecc;
-}
-
-int yaffs_check_tags_ecc(struct yaffs_tags *tags)
-{
-	unsigned ecc = tags->ecc;
-
-	yaffs_calc_tags_ecc(tags);
-
-	ecc ^= tags->ecc;
-
-	if (ecc && ecc <= 64) {
-		/* TODO: Handle the failure better. Retire? */
-		unsigned char *b = ((union yaffs_tags_union *)tags)->as_bytes;
-
-		ecc--;
-
-		b[ecc / 8] ^= (1 << (ecc & 7));
-
-		/* Now recvalc the ecc */
-		yaffs_calc_tags_ecc(tags);
-
-		return 1;	/* recovered error */
-	} else if (ecc) {
-		/* Wierd ecc failure value */
-		/* TODO Need to do somethiong here */
-		return -1;	/* unrecovered error */
-	}
-	return 0;
-}
-
-/********** Tags **********/
-
-static void yaffs_load_tags_to_spare(struct yaffs_spare *spare_ptr,
-				     struct yaffs_tags *tags_ptr)
-{
-	union yaffs_tags_union *tu = (union yaffs_tags_union *)tags_ptr;
-
-	yaffs_calc_tags_ecc(tags_ptr);
-
-	spare_ptr->tb0 = tu->as_bytes[0];
-	spare_ptr->tb1 = tu->as_bytes[1];
-	spare_ptr->tb2 = tu->as_bytes[2];
-	spare_ptr->tb3 = tu->as_bytes[3];
-	spare_ptr->tb4 = tu->as_bytes[4];
-	spare_ptr->tb5 = tu->as_bytes[5];
-	spare_ptr->tb6 = tu->as_bytes[6];
-	spare_ptr->tb7 = tu->as_bytes[7];
-}
-
-static void yaffs_get_tags_from_spare(struct yaffs_dev *dev,
-				      struct yaffs_spare *spare_ptr,
-				      struct yaffs_tags *tags_ptr)
-{
-	union yaffs_tags_union *tu = (union yaffs_tags_union *)tags_ptr;
-	int result;
-
-	tu->as_bytes[0] = spare_ptr->tb0;
-	tu->as_bytes[1] = spare_ptr->tb1;
-	tu->as_bytes[2] = spare_ptr->tb2;
-	tu->as_bytes[3] = spare_ptr->tb3;
-	tu->as_bytes[4] = spare_ptr->tb4;
-	tu->as_bytes[5] = spare_ptr->tb5;
-	tu->as_bytes[6] = spare_ptr->tb6;
-	tu->as_bytes[7] = spare_ptr->tb7;
-
-	result = yaffs_check_tags_ecc(tags_ptr);
-	if (result > 0)
-		dev->n_tags_ecc_fixed++;
-	else if (result < 0)
-		dev->n_tags_ecc_unfixed++;
-}
-
-static void yaffs_spare_init(struct yaffs_spare *spare)
-{
-	memset(spare, 0xff, sizeof(struct yaffs_spare));
-}
-
-static int yaffs_wr_nand(struct yaffs_dev *dev,
-			 int nand_chunk, const u8 *data,
-			 struct yaffs_spare *spare)
-{
-	if (nand_chunk < dev->param.start_block * dev->param.chunks_per_block) {
-		yaffs_trace(YAFFS_TRACE_ERROR,
-			"**>> yaffs chunk %d is not valid",
-			nand_chunk);
-		return YAFFS_FAIL;
-	}
-
-	return dev->param.write_chunk_fn(dev, nand_chunk, data, spare);
-}
-
-static int yaffs_rd_chunk_nand(struct yaffs_dev *dev,
-			       int nand_chunk,
-			       u8 *data,
-			       struct yaffs_spare *spare,
-			       enum yaffs_ecc_result *ecc_result,
-			       int correct_errors)
-{
-	int ret_val;
-	struct yaffs_spare local_spare;
-
-	if (!spare) {
-		/* If we don't have a real spare, then we use a local one. */
-		/* Need this for the calculation of the ecc */
-		spare = &local_spare;
-	}
-
-	if (!dev->param.use_nand_ecc) {
-		ret_val =
-		    dev->param.read_chunk_fn(dev, nand_chunk, data, spare);
-		if (data && correct_errors) {
-			/* Do ECC correction */
-			/* Todo handle any errors */
-			int ecc_result1, ecc_result2;
-			u8 calc_ecc[3];
-
-			yaffs_ecc_calc(data, calc_ecc);
-			ecc_result1 =
-			    yaffs_ecc_correct(data, spare->ecc1, calc_ecc);
-			yaffs_ecc_calc(&data[256], calc_ecc);
-			ecc_result2 =
-			    yaffs_ecc_correct(&data[256], spare->ecc2,
-					      calc_ecc);
-
-			if (ecc_result1 > 0) {
-				yaffs_trace(YAFFS_TRACE_ERROR,
-					"**>>yaffs ecc error fix performed on chunk %d:0",
-					nand_chunk);
-				dev->n_ecc_fixed++;
-			} else if (ecc_result1 < 0) {
-				yaffs_trace(YAFFS_TRACE_ERROR,
-					"**>>yaffs ecc error unfixed on chunk %d:0",
-					nand_chunk);
-				dev->n_ecc_unfixed++;
-			}
-
-			if (ecc_result2 > 0) {
-				yaffs_trace(YAFFS_TRACE_ERROR,
-					"**>>yaffs ecc error fix performed on chunk %d:1",
-					nand_chunk);
-				dev->n_ecc_fixed++;
-			} else if (ecc_result2 < 0) {
-				yaffs_trace(YAFFS_TRACE_ERROR,
-					"**>>yaffs ecc error unfixed on chunk %d:1",
-					nand_chunk);
-				dev->n_ecc_unfixed++;
-			}
-
-			if (ecc_result1 || ecc_result2) {
-				/* We had a data problem on this page */
-				yaffs_handle_rd_data_error(dev, nand_chunk);
-			}
-
-			if (ecc_result1 < 0 || ecc_result2 < 0)
-				*ecc_result = YAFFS_ECC_RESULT_UNFIXED;
-			else if (ecc_result1 > 0 || ecc_result2 > 0)
-				*ecc_result = YAFFS_ECC_RESULT_FIXED;
-			else
-				*ecc_result = YAFFS_ECC_RESULT_NO_ERROR;
-		}
-	} else {
-		/* Must allocate enough memory for spare+2*sizeof(int) */
-		/* for ecc results from device. */
-		struct yaffs_nand_spare nspare;
-
-		memset(&nspare, 0, sizeof(nspare));
-
-		ret_val = dev->param.read_chunk_fn(dev, nand_chunk, data,
-						   (struct yaffs_spare *)
-						   &nspare);
-		memcpy(spare, &nspare, sizeof(struct yaffs_spare));
-		if (data && correct_errors) {
-			if (nspare.eccres1 > 0) {
-				yaffs_trace(YAFFS_TRACE_ERROR,
-					"**>>mtd ecc error fix performed on chunk %d:0",
-					nand_chunk);
-			} else if (nspare.eccres1 < 0) {
-				yaffs_trace(YAFFS_TRACE_ERROR,
-					"**>>mtd ecc error unfixed on chunk %d:0",
-					nand_chunk);
-			}
-
-			if (nspare.eccres2 > 0) {
-				yaffs_trace(YAFFS_TRACE_ERROR,
-					"**>>mtd ecc error fix performed on chunk %d:1",
-					nand_chunk);
-			} else if (nspare.eccres2 < 0) {
-				yaffs_trace(YAFFS_TRACE_ERROR,
-					"**>>mtd ecc error unfixed on chunk %d:1",
-					nand_chunk);
-			}
-
-			if (nspare.eccres1 || nspare.eccres2) {
-				/* We had a data problem on this page */
-				yaffs_handle_rd_data_error(dev, nand_chunk);
-			}
-
-			if (nspare.eccres1 < 0 || nspare.eccres2 < 0)
-				*ecc_result = YAFFS_ECC_RESULT_UNFIXED;
-			else if (nspare.eccres1 > 0 || nspare.eccres2 > 0)
-				*ecc_result = YAFFS_ECC_RESULT_FIXED;
-			else
-				*ecc_result = YAFFS_ECC_RESULT_NO_ERROR;
-
-		}
-	}
-	return ret_val;
-}
-
-/*
- * Functions for robustisizing
- */
-
-static void yaffs_handle_rd_data_error(struct yaffs_dev *dev, int nand_chunk)
-{
-	int flash_block = nand_chunk / dev->param.chunks_per_block;
-
-	/* Mark the block for retirement */
-	yaffs_get_block_info(dev, flash_block + dev->block_offset)->
-		needs_retiring = 1;
-	yaffs_trace(YAFFS_TRACE_ERROR | YAFFS_TRACE_BAD_BLOCKS,
-		"**>>Block %d marked for retirement",
-		flash_block);
-
-	/* TODO:
-	 * Just do a garbage collection on the affected block
-	 * then retire the block
-	 * NB recursion
-	 */
-}
-
-int yaffs_tags_compat_wr(struct yaffs_dev *dev,
-			 int nand_chunk,
-			 const u8 *data, const struct yaffs_ext_tags *ext_tags)
-{
-	struct yaffs_spare spare;
-	struct yaffs_tags tags;
-
-	yaffs_spare_init(&spare);
-
-	if (ext_tags->is_deleted)
-		spare.page_status = 0;
-	else {
-		tags.obj_id = ext_tags->obj_id;
-		tags.chunk_id = ext_tags->chunk_id;
-
-		tags.n_bytes_lsb = ext_tags->n_bytes & (1024 - 1);
-
-		if (dev->data_bytes_per_chunk >= 1024)
-			tags.n_bytes_msb = (ext_tags->n_bytes >> 10) & 3;
-		else
-			tags.n_bytes_msb = 3;
-
-		tags.serial_number = ext_tags->serial_number;
-
-		if (!dev->param.use_nand_ecc && data)
-			yaffs_calc_ecc(data, &spare);
-
-		yaffs_load_tags_to_spare(&spare, &tags);
-	}
-	return yaffs_wr_nand(dev, nand_chunk, data, &spare);
-}
-
-int yaffs_tags_compat_rd(struct yaffs_dev *dev,
-			 int nand_chunk,
-			 u8 *data, struct yaffs_ext_tags *ext_tags)
-{
-	struct yaffs_spare spare;
-	struct yaffs_tags tags;
-	enum yaffs_ecc_result ecc_result = YAFFS_ECC_RESULT_UNKNOWN;
-	static struct yaffs_spare spare_ff;
-	static int init;
-	int deleted;
-
-	if (!init) {
-		memset(&spare_ff, 0xff, sizeof(spare_ff));
-		init = 1;
-	}
-
-	if (!yaffs_rd_chunk_nand(dev, nand_chunk,
-					data, &spare, &ecc_result, 1))
-		return YAFFS_FAIL;
-
-	/* ext_tags may be NULL */
-	if (!ext_tags)
-		return YAFFS_OK;
-
-	deleted = (hweight8(spare.page_status) < 7) ? 1 : 0;
-
-	ext_tags->is_deleted = deleted;
-	ext_tags->ecc_result = ecc_result;
-	ext_tags->block_bad = 0;	/* We're reading it */
-	/* therefore it is not a bad block */
-	ext_tags->chunk_used =
-		memcmp(&spare_ff, &spare, sizeof(spare_ff)) ? 1 : 0;
-
-	if (ext_tags->chunk_used) {
-		yaffs_get_tags_from_spare(dev, &spare, &tags);
-		ext_tags->obj_id = tags.obj_id;
-		ext_tags->chunk_id = tags.chunk_id;
-		ext_tags->n_bytes = tags.n_bytes_lsb;
-
-		if (dev->data_bytes_per_chunk >= 1024)
-			ext_tags->n_bytes |=
-				(((unsigned)tags.n_bytes_msb) << 10);
-
-		ext_tags->serial_number = tags.serial_number;
-	}
-
-	return YAFFS_OK;
-}
-
-int yaffs_tags_compat_mark_bad(struct yaffs_dev *dev, int flash_block)
-{
-	struct yaffs_spare spare;
-
-	memset(&spare, 0xff, sizeof(struct yaffs_spare));
-
-	spare.block_status = 'Y';
-
-	yaffs_wr_nand(dev, flash_block * dev->param.chunks_per_block, NULL,
-		      &spare);
-	yaffs_wr_nand(dev, flash_block * dev->param.chunks_per_block + 1,
-		      NULL, &spare);
-
-	return YAFFS_OK;
-}
-
-int yaffs_tags_compat_query_block(struct yaffs_dev *dev,
-				  int block_no,
-				  enum yaffs_block_state *state,
-				  u32 *seq_number)
-{
-	struct yaffs_spare spare0, spare1;
-	static struct yaffs_spare spare_ff;
-	static int init;
-	enum yaffs_ecc_result dummy;
-
-	if (!init) {
-		memset(&spare_ff, 0xff, sizeof(spare_ff));
-		init = 1;
-	}
-
-	*seq_number = 0;
-
-	yaffs_rd_chunk_nand(dev, block_no * dev->param.chunks_per_block, NULL,
-			    &spare0, &dummy, 1);
-	yaffs_rd_chunk_nand(dev, block_no * dev->param.chunks_per_block + 1,
-			    NULL, &spare1, &dummy, 1);
-
-	if (hweight8(spare0.block_status & spare1.block_status) < 7)
-		*state = YAFFS_BLOCK_STATE_DEAD;
-	else if (memcmp(&spare_ff, &spare0, sizeof(spare_ff)) == 0)
-		*state = YAFFS_BLOCK_STATE_EMPTY;
-	else
-		*state = YAFFS_BLOCK_STATE_NEEDS_SCAN;
-
-	return YAFFS_OK;
-}

fs/yaffs2/yaffs_tagscompat.h

@@ -1,36 +0,0 @@
-/*
- * YAFFS: Yet another Flash File System . A NAND-flash specific file system.
- *
- * Copyright (C) 2002-2011 Aleph One Ltd.
- *   for Toby Churchill Ltd and Brightstar Engineering
- *
- * Created by Charles Manning <charles@aleph1.co.uk>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU Lesser General Public License version 2.1 as
- * published by the Free Software Foundation.
- *
- * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL.
- */
-
-#ifndef __YAFFS_TAGSCOMPAT_H__
-#define __YAFFS_TAGSCOMPAT_H__
-
-#include "yaffs_guts.h"
-int yaffs_tags_compat_wr(struct yaffs_dev *dev,
-			 int nand_chunk,
-			 const u8 *data, const struct yaffs_ext_tags *tags);
-int yaffs_tags_compat_rd(struct yaffs_dev *dev,
-			 int nand_chunk,
-			 u8 *data, struct yaffs_ext_tags *tags);
-int yaffs_tags_compat_mark_bad(struct yaffs_dev *dev, int block_no);
-int yaffs_tags_compat_query_block(struct yaffs_dev *dev,
-				  int block_no,
-				  enum yaffs_block_state *state,
-				  u32 *seq_number);
-
-void yaffs_calc_tags_ecc(struct yaffs_tags *tags);
-int yaffs_check_tags_ecc(struct yaffs_tags *tags);
-int yaffs_count_bits(u8 byte);
-
-#endif

fs/yaffs2/yaffs_trace.h

@@ -1,57 +0,0 @@
-/*
- * YAFFS: Yet another Flash File System . A NAND-flash specific file system.
- *
- * Copyright (C) 2002-2011 Aleph One Ltd.
- *   for Toby Churchill Ltd and Brightstar Engineering
- *
- * Created by Charles Manning <charles@aleph1.co.uk>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU Lesser General Public License version 2.1 as
- * published by the Free Software Foundation.
- *
- * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL.
- */
-
-#ifndef __YTRACE_H__
-#define __YTRACE_H__
-
-extern unsigned int yaffs_trace_mask;
-extern unsigned int yaffs_wr_attempts;
-
-/*
- * Tracing flags.
- * The flags masked in YAFFS_TRACE_ALWAYS are always traced.
- */
-
-#define YAFFS_TRACE_OS			0x00000002
-#define YAFFS_TRACE_ALLOCATE		0x00000004
-#define YAFFS_TRACE_SCAN		0x00000008
-#define YAFFS_TRACE_BAD_BLOCKS		0x00000010
-#define YAFFS_TRACE_ERASE		0x00000020
-#define YAFFS_TRACE_GC			0x00000040
-#define YAFFS_TRACE_WRITE		0x00000080
-#define YAFFS_TRACE_TRACING		0x00000100
-#define YAFFS_TRACE_DELETION		0x00000200
-#define YAFFS_TRACE_BUFFERS		0x00000400
-#define YAFFS_TRACE_NANDACCESS		0x00000800
-#define YAFFS_TRACE_GC_DETAIL		0x00001000
-#define YAFFS_TRACE_SCAN_DEBUG		0x00002000
-#define YAFFS_TRACE_MTD			0x00004000
-#define YAFFS_TRACE_CHECKPOINT		0x00008000
-
-#define YAFFS_TRACE_VERIFY		0x00010000
-#define YAFFS_TRACE_VERIFY_NAND		0x00020000
-#define YAFFS_TRACE_VERIFY_FULL		0x00040000
-#define YAFFS_TRACE_VERIFY_ALL		0x000f0000
-
-#define YAFFS_TRACE_SYNC		0x00100000
-#define YAFFS_TRACE_BACKGROUND		0x00200000
-#define YAFFS_TRACE_LOCK		0x00400000
-#define YAFFS_TRACE_MOUNT		0x00800000
-
-#define YAFFS_TRACE_ERROR		0x40000000
-#define YAFFS_TRACE_BUG			0x80000000
-#define YAFFS_TRACE_ALWAYS		0xf0000000
-
-#endif

fs/yaffs2/yaffs_uboot_glue.c

@@ -1,457 +0,0 @@
-/*
- * YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
- *
- * Copyright (C) 2002-2007 Aleph One Ltd.
- *   for Toby Churchill Ltd and Brightstar Engineering
- *
- * Created by Charles Manning <charles@aleph1.co.uk>
- *
- * 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.
- */
-
-/*
- * yaffscfg.c  The configuration for the "direct" use of yaffs.
- *
- * This is set up for u-boot.
- *
- * This version now uses the ydevconfig mechanism to set up partitions.
- */
-
-#include <div64.h>
-#include <malloc.h>
-#include <linux/printk.h>
-
-#include <config.h>
-#include "nand.h"
-#include "yaffscfg.h"
-#include "yaffsfs.h"
-#include "yaffs_packedtags2.h"
-#include "yaffs_mtdif.h"
-#include "yaffs_mtdif2.h"
-#if 0
-#include <errno.h>
-#else
-#include "malloc.h"
-#endif
-#include <linux/mtd/rawnand.h>
-
-unsigned yaffs_trace_mask = 0x0; /* Disable logging */
-static int yaffs_errno;
-
-void yaffs_bug_fn(const char *fn, int n)
-{
-	printf("yaffs bug at %s:%d\n", fn, n);
-}
-
-void *yaffsfs_malloc(size_t x)
-{
-	return malloc(x);
-}
-
-void yaffsfs_free(void *x)
-{
-	free(x);
-}
-
-void yaffsfs_SetError(int err)
-{
-	yaffs_errno = err;
-}
-
-int yaffsfs_GetLastError(void)
-{
-	return yaffs_errno;
-}
-
-int yaffsfs_GetError(void)
-{
-	return yaffs_errno;
-}
-
-void yaffsfs_Lock(void)
-{
-}
-
-void yaffsfs_Unlock(void)
-{
-}
-
-__u32 yaffsfs_CurrentTime(void)
-{
-	return 0;
-}
-
-void *yaffs_malloc(size_t size)
-{
-	return malloc(size);
-}
-
-void yaffs_free(void *ptr)
-{
-	free(ptr);
-}
-
-void yaffsfs_LocalInitialisation(void)
-{
-	/* No locking used */
-}
-
-static const char *yaffs_file_type_str(struct yaffs_stat *stat)
-{
-	switch (stat->st_mode & S_IFMT) {
-	case S_IFREG: return "regular file";
-	case S_IFDIR: return "directory";
-	case S_IFLNK: return "symlink";
-	default: return "unknown";
-	}
-}
-
-static const char *yaffs_error_str(void)
-{
-	int error = yaffsfs_GetLastError();
-
-	if (error < 0)
-		error = -error;
-
-	switch (error) {
-	case EBUSY: return "Busy";
-	case ENODEV: return "No such device";
-	case EINVAL: return "Invalid parameter";
-	case ENFILE: return "Too many open files";
-	case EBADF:  return "Bad handle";
-	case EACCES: return "Wrong permissions";
-	case EXDEV:  return "Not on same device";
-	case ENOENT: return "No such entry";
-	case ENOSPC: return "Device full";
-	case EROFS:  return "Read only file system";
-	case ERANGE: return "Range error";
-	case ENOTEMPTY: return "Not empty";
-	case ENAMETOOLONG: return "Name too long";
-	case ENOMEM: return "Out of memory";
-	case EFAULT: return "Fault";
-	case EEXIST: return "Name exists";
-	case ENOTDIR: return "Not a directory";
-	case EISDIR: return "Not permitted on a directory";
-	case ELOOP:  return "Symlink loop";
-	case 0: return "No error";
-	default: return "Unknown error";
-	}
-}
-
-void cmd_yaffs_tracemask(unsigned set, unsigned mask)
-{
-	if (set)
-		yaffs_trace_mask = mask;
-
-	printf("yaffs trace mask: %08x\n", yaffs_trace_mask);
-}
-
-static int yaffs_regions_overlap(int a, int b, int x, int y)
-{
-	return	(a <= x && x <= b) ||
-		(a <= y && y <= b) ||
-		(x <= a && a <= y) ||
-		(x <= b && b <= y);
-}
-
-void cmd_yaffs_devconfig(char *_mp, int flash_dev,
-			int start_block, int end_block)
-{
-	struct mtd_info *mtd = NULL;
-	struct yaffs_dev *dev = NULL;
-	struct yaffs_dev *chk;
-	char *mp = NULL;
-	struct nand_chip *chip;
-
-	mtd = get_nand_dev_by_index(flash_dev);
-	if (!mtd) {
-		pr_err("\nno NAND devices available\n");
-		return;
-	}
-
-	dev = calloc(1, sizeof(*dev));
-	mp = strdup(_mp);
-
-	if (!dev || !mp) {
-		/* Alloc error */
-		printf("Failed to allocate memory\n");
-		goto err;
-	}
-
-	if (flash_dev >= CONFIG_SYS_MAX_NAND_DEVICE) {
-		printf("Flash device invalid\n");
-		goto err;
-	}
-
-	if (end_block == 0)
-		end_block = lldiv(mtd->size, mtd->erasesize - 1);
-
-	if (end_block < start_block) {
-		printf("Bad start/end\n");
-		goto err;
-	}
-
-	chip =  mtd_to_nand(mtd);
-
-	/* Check for any conflicts */
-	yaffs_dev_rewind();
-	while (1) {
-		chk = yaffs_next_dev();
-		if (!chk)
-			break;
-		if (strcmp(chk->param.name, mp) == 0) {
-			printf("Mount point name already used\n");
-			goto err;
-		}
-		if (chk->driver_context == mtd &&
-			yaffs_regions_overlap(
-				chk->param.start_block, chk->param.end_block,
-				start_block, end_block)) {
-			printf("Region overlaps with partition %s\n",
-				chk->param.name);
-			goto err;
-		}
-
-	}
-
-	/* Seems sane, so configure */
-	memset(dev, 0, sizeof(*dev));
-	dev->param.name = mp;
-	dev->driver_context = mtd;
-	dev->param.start_block = start_block;
-	dev->param.end_block = end_block;
-	dev->param.chunks_per_block = mtd->erasesize / mtd->writesize;
-	dev->param.total_bytes_per_chunk = mtd->writesize;
-	dev->param.is_yaffs2 = 1;
-	dev->param.use_nand_ecc = 1;
-	dev->param.n_reserved_blocks = 5;
-	if (chip->ecc.layout->oobavail < sizeof(struct yaffs_packed_tags2))
-		dev->param.inband_tags = 1;
-	dev->param.n_caches = 10;
-	dev->param.write_chunk_tags_fn = nandmtd2_write_chunk_tags;
-	dev->param.read_chunk_tags_fn = nandmtd2_read_chunk_tags;
-	dev->param.erase_fn = nandmtd_EraseBlockInNAND;
-	dev->param.initialise_flash_fn = nandmtd_InitialiseNAND;
-	dev->param.bad_block_fn = nandmtd2_MarkNANDBlockBad;
-	dev->param.query_block_fn = nandmtd2_QueryNANDBlock;
-
-	yaffs_add_device(dev);
-
-	printf("Configures yaffs mount %s: dev %d start block %d, end block %d %s\n",
-		mp, flash_dev, start_block, end_block,
-		dev->param.inband_tags ? "using inband tags" : "");
-	return;
-
-err:
-	free(dev);
-	free(mp);
-}
-
-void cmd_yaffs_dev_ls(void)
-{
-	struct yaffs_dev *dev;
-	int flash_dev;
-	int free_space;
-
-	yaffs_dev_rewind();
-
-	while (1) {
-		dev = yaffs_next_dev();
-		if (!dev)
-			return;
-		flash_dev = nand_mtd_to_devnum(dev->driver_context);
-		printf("%-10s %5d 0x%05x 0x%05x %s",
-			dev->param.name, flash_dev,
-			dev->param.start_block, dev->param.end_block,
-			dev->param.inband_tags ? "using inband tags, " : "");
-
-		free_space = yaffs_freespace(dev->param.name);
-		if (free_space < 0)
-			printf("not mounted\n");
-		else
-			printf("free 0x%x\n", free_space);
-
-	}
-}
-
-void make_a_file(char *yaffsName, char bval, int sizeOfFile)
-{
-	int outh;
-	int i;
-	unsigned char buffer[100];
-
-	outh = yaffs_open(yaffsName,
-				O_CREAT | O_RDWR | O_TRUNC,
-				S_IREAD | S_IWRITE);
-	if (outh < 0) {
-		printf("Error opening file: %d. %s\n", outh, yaffs_error_str());
-		return;
-	}
-
-	memset(buffer, bval, 100);
-
-	do {
-		i = sizeOfFile;
-		if (i > 100)
-			i = 100;
-		sizeOfFile -= i;
-
-		yaffs_write(outh, buffer, i);
-
-	} while (sizeOfFile > 0);
-
-	yaffs_close(outh);
-}
-
-void read_a_file(char *fn)
-{
-	int h;
-	int i = 0;
-	unsigned char b;
-
-	h = yaffs_open(fn, O_RDWR, 0);
-	if (h < 0) {
-		printf("File not found\n");
-		return;
-	}
-
-	while (yaffs_read(h, &b, 1) > 0) {
-		printf("%02x ", b);
-		i++;
-		if (i > 32) {
-			printf("\n");
-			i = 0;
-		}
-	}
-	printf("\n");
-	yaffs_close(h);
-}
-
-void cmd_yaffs_mount(char *mp)
-{
-	int retval = yaffs_mount(mp);
-	if (retval < 0)
-		printf("Error mounting %s, return value: %d, %s\n", mp,
-			yaffsfs_GetError(), yaffs_error_str());
-}
-
-void cmd_yaffs_umount(char *mp)
-{
-	if (yaffs_unmount(mp) == -1)
-		printf("Error umounting %s, return value: %d, %s\n", mp,
-			yaffsfs_GetError(), yaffs_error_str());
-}
-
-void cmd_yaffs_write_file(char *yaffsName, char bval, int sizeOfFile)
-{
-	make_a_file(yaffsName, bval, sizeOfFile);
-}
-
-void cmd_yaffs_read_file(char *fn)
-{
-	read_a_file(fn);
-}
-
-void cmd_yaffs_mread_file(char *fn, char *addr)
-{
-	int h;
-	struct yaffs_stat s;
-
-	yaffs_stat(fn, &s);
-
-	printf("Copy %s to 0x%p... ", fn, addr);
-	h = yaffs_open(fn, O_RDWR, 0);
-	if (h < 0) {
-		printf("File not found\n");
-		return;
-	}
-
-	yaffs_read(h, addr, (int)s.st_size);
-	printf("\t[DONE]\n");
-
-	yaffs_close(h);
-}
-
-void cmd_yaffs_mwrite_file(char *fn, char *addr, int size)
-{
-	int outh;
-
-	outh = yaffs_open(fn, O_CREAT | O_RDWR | O_TRUNC, S_IREAD | S_IWRITE);
-	if (outh < 0)
-		printf("Error opening file: %d, %s\n", outh, yaffs_error_str());
-
-	yaffs_write(outh, addr, size);
-
-	yaffs_close(outh);
-}
-
-void cmd_yaffs_ls(const char *mountpt, int longlist)
-{
-	int i;
-	yaffs_DIR *d;
-	struct yaffs_dirent *de;
-	struct yaffs_stat stat;
-	char tempstr[255];
-
-	d = yaffs_opendir(mountpt);
-
-	if (!d) {
-		printf("opendir failed, %s\n", yaffs_error_str());
-		return;
-	}
-
-	for (i = 0; (de = yaffs_readdir(d)) != NULL; i++) {
-		if (longlist) {
-			sprintf(tempstr, "%s/%s", mountpt, de->d_name);
-			yaffs_lstat(tempstr, &stat);
-			printf("%-25s\t%7ld",
-					de->d_name,
-					(long)stat.st_size);
-			printf(" %5d %s\n",
-					stat.st_ino,
-					yaffs_file_type_str(&stat));
-		} else {
-			printf("%s\n", de->d_name);
-		}
-	}
-
-	yaffs_closedir(d);
-}
-
-void cmd_yaffs_mkdir(const char *dir)
-{
-	int retval = yaffs_mkdir(dir, 0);
-
-	if (retval < 0)
-		printf("yaffs_mkdir returning error: %d, %s\n",
-			retval, yaffs_error_str());
-}
-
-void cmd_yaffs_rmdir(const char *dir)
-{
-	int retval = yaffs_rmdir(dir);
-
-	if (retval < 0)
-		printf("yaffs_rmdir returning error: %d, %s\n",
-			retval, yaffs_error_str());
-}
-
-void cmd_yaffs_rm(const char *path)
-{
-	int retval = yaffs_unlink(path);
-
-	if (retval < 0)
-		printf("yaffs_unlink returning error: %d, %s\n",
-			retval, yaffs_error_str());
-}
-
-void cmd_yaffs_mv(const char *oldPath, const char *newPath)
-{
-	int retval = yaffs_rename(newPath, oldPath);
-
-	if (retval < 0)
-		printf("yaffs_unlink returning error: %d, %s\n",
-			retval, yaffs_error_str());
-}

fs/yaffs2/yaffs_verify.c

@@ -1,521 +0,0 @@
-/*
- * YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
- *
- * Copyright (C) 2002-2011 Aleph One Ltd.
- *   for Toby Churchill Ltd and Brightstar Engineering
- *
- * Created by Charles Manning <charles@aleph1.co.uk>
- *
- * 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 "yaffs_verify.h"
-#include "yaffs_trace.h"
-#include "yaffs_bitmap.h"
-#include "yaffs_getblockinfo.h"
-#include "yaffs_nand.h"
-
-int yaffs_skip_verification(struct yaffs_dev *dev)
-{
-	return !(yaffs_trace_mask &
-		 (YAFFS_TRACE_VERIFY | YAFFS_TRACE_VERIFY_FULL));
-}
-
-static int yaffs_skip_full_verification(struct yaffs_dev *dev)
-{
-	return !(yaffs_trace_mask & (YAFFS_TRACE_VERIFY_FULL));
-}
-
-static int yaffs_skip_nand_verification(struct yaffs_dev *dev)
-{
-	return !(yaffs_trace_mask & (YAFFS_TRACE_VERIFY_NAND));
-}
-
-static const char * const block_state_name[] = {
-	"Unknown",
-	"Needs scan",
-	"Scanning",
-	"Empty",
-	"Allocating",
-	"Full",
-	"Dirty",
-	"Checkpoint",
-	"Collecting",
-	"Dead"
-};
-
-void yaffs_verify_blk(struct yaffs_dev *dev, struct yaffs_block_info *bi, int n)
-{
-	int actually_used;
-	int in_use;
-
-	if (yaffs_skip_verification(dev))
-		return;
-
-	/* Report illegal runtime states */
-	if (bi->block_state >= YAFFS_NUMBER_OF_BLOCK_STATES)
-		yaffs_trace(YAFFS_TRACE_VERIFY,
-			"Block %d has undefined state %d",
-			n, bi->block_state);
-
-	switch (bi->block_state) {
-	case YAFFS_BLOCK_STATE_UNKNOWN:
-	case YAFFS_BLOCK_STATE_SCANNING:
-	case YAFFS_BLOCK_STATE_NEEDS_SCAN:
-		yaffs_trace(YAFFS_TRACE_VERIFY,
-			"Block %d has bad run-state %s",
-			n, block_state_name[bi->block_state]);
-	}
-
-	/* Check pages in use and soft deletions are legal */
-
-	actually_used = bi->pages_in_use - bi->soft_del_pages;
-
-	if (bi->pages_in_use < 0 ||
-	    bi->pages_in_use > dev->param.chunks_per_block ||
-	    bi->soft_del_pages < 0 ||
-	    bi->soft_del_pages > dev->param.chunks_per_block ||
-	    actually_used < 0 || actually_used > dev->param.chunks_per_block)
-		yaffs_trace(YAFFS_TRACE_VERIFY,
-			"Block %d has illegal values pages_in_used %d soft_del_pages %d",
-			n, bi->pages_in_use, bi->soft_del_pages);
-
-	/* Check chunk bitmap legal */
-	in_use = yaffs_count_chunk_bits(dev, n);
-	if (in_use != bi->pages_in_use)
-		yaffs_trace(YAFFS_TRACE_VERIFY,
-			"Block %d has inconsistent values pages_in_use %d counted chunk bits %d",
-			n, bi->pages_in_use, in_use);
-}
-
-void yaffs_verify_collected_blk(struct yaffs_dev *dev,
-				struct yaffs_block_info *bi, int n)
-{
-	yaffs_verify_blk(dev, bi, n);
-
-	/* After collection the block should be in the erased state */
-
-	if (bi->block_state != YAFFS_BLOCK_STATE_COLLECTING &&
-	    bi->block_state != YAFFS_BLOCK_STATE_EMPTY) {
-		yaffs_trace(YAFFS_TRACE_ERROR,
-			"Block %d is in state %d after gc, should be erased",
-			n, bi->block_state);
-	}
-}
-
-void yaffs_verify_blocks(struct yaffs_dev *dev)
-{
-	int i;
-	int state_count[YAFFS_NUMBER_OF_BLOCK_STATES];
-	int illegal_states = 0;
-
-	if (yaffs_skip_verification(dev))
-		return;
-
-	memset(state_count, 0, sizeof(state_count));
-
-	for (i = dev->internal_start_block; i <= dev->internal_end_block; i++) {
-		struct yaffs_block_info *bi = yaffs_get_block_info(dev, i);
-		yaffs_verify_blk(dev, bi, i);
-
-		if (bi->block_state < YAFFS_NUMBER_OF_BLOCK_STATES)
-			state_count[bi->block_state]++;
-		else
-			illegal_states++;
-	}
-
-	yaffs_trace(YAFFS_TRACE_VERIFY,	"Block summary");
-
-	yaffs_trace(YAFFS_TRACE_VERIFY,
-		"%d blocks have illegal states",
-		illegal_states);
-	if (state_count[YAFFS_BLOCK_STATE_ALLOCATING] > 1)
-		yaffs_trace(YAFFS_TRACE_VERIFY,
-			"Too many allocating blocks");
-
-	for (i = 0; i < YAFFS_NUMBER_OF_BLOCK_STATES; i++)
-		yaffs_trace(YAFFS_TRACE_VERIFY,
-			"%s %d blocks",
-			block_state_name[i], state_count[i]);
-
-	if (dev->blocks_in_checkpt != state_count[YAFFS_BLOCK_STATE_CHECKPOINT])
-		yaffs_trace(YAFFS_TRACE_VERIFY,
-			"Checkpoint block count wrong dev %d count %d",
-			dev->blocks_in_checkpt,
-			state_count[YAFFS_BLOCK_STATE_CHECKPOINT]);
-
-	if (dev->n_erased_blocks != state_count[YAFFS_BLOCK_STATE_EMPTY])
-		yaffs_trace(YAFFS_TRACE_VERIFY,
-			"Erased block count wrong dev %d count %d",
-			dev->n_erased_blocks,
-			state_count[YAFFS_BLOCK_STATE_EMPTY]);
-
-	if (state_count[YAFFS_BLOCK_STATE_COLLECTING] > 1)
-		yaffs_trace(YAFFS_TRACE_VERIFY,
-			"Too many collecting blocks %d (max is 1)",
-			state_count[YAFFS_BLOCK_STATE_COLLECTING]);
-}
-
-/*
- * Verify the object header. oh must be valid, but obj and tags may be NULL in
- * which case those tests will not be performed.
- */
-void yaffs_verify_oh(struct yaffs_obj *obj, struct yaffs_obj_hdr *oh,
-		     struct yaffs_ext_tags *tags, int parent_check)
-{
-	if (obj && yaffs_skip_verification(obj->my_dev))
-		return;
-
-	if (!(tags && obj && oh)) {
-		yaffs_trace(YAFFS_TRACE_VERIFY,
-			"Verifying object header tags %p obj %p oh %p",
-			tags, obj, oh);
-		return;
-	}
-
-	if (oh->type <= YAFFS_OBJECT_TYPE_UNKNOWN ||
-	    oh->type > YAFFS_OBJECT_TYPE_MAX)
-		yaffs_trace(YAFFS_TRACE_VERIFY,
-			"Obj %d header type is illegal value 0x%x",
-			tags->obj_id, oh->type);
-
-	if (tags->obj_id != obj->obj_id)
-		yaffs_trace(YAFFS_TRACE_VERIFY,
-			"Obj %d header mismatch obj_id %d",
-			tags->obj_id, obj->obj_id);
-
-	/*
-	 * Check that the object's parent ids match if parent_check requested.
-	 *
-	 * Tests do not apply to the root object.
-	 */
-
-	if (parent_check && tags->obj_id > 1 && !obj->parent)
-		yaffs_trace(YAFFS_TRACE_VERIFY,
-			"Obj %d header mismatch parent_id %d obj->parent is NULL",
-			tags->obj_id, oh->parent_obj_id);
-
-	if (parent_check && obj->parent &&
-	    oh->parent_obj_id != obj->parent->obj_id &&
-	    (oh->parent_obj_id != YAFFS_OBJECTID_UNLINKED ||
-	     obj->parent->obj_id != YAFFS_OBJECTID_DELETED))
-		yaffs_trace(YAFFS_TRACE_VERIFY,
-			"Obj %d header mismatch parent_id %d parent_obj_id %d",
-			tags->obj_id, oh->parent_obj_id,
-			obj->parent->obj_id);
-
-	if (tags->obj_id > 1 && oh->name[0] == 0)	/* Null name */
-		yaffs_trace(YAFFS_TRACE_VERIFY,
-			"Obj %d header name is NULL",
-			obj->obj_id);
-
-	if (tags->obj_id > 1 && ((u8) (oh->name[0])) == 0xff)	/* Junk name */
-		yaffs_trace(YAFFS_TRACE_VERIFY,
-			"Obj %d header name is 0xff",
-			obj->obj_id);
-}
-
-void yaffs_verify_file(struct yaffs_obj *obj)
-{
-	u32 x;
-	int required_depth;
-	int last_chunk;
-	u32 offset_in_chunk;
-	u32 the_chunk;
-
-	u32 i;
-	struct yaffs_dev *dev;
-	struct yaffs_ext_tags tags;
-	struct yaffs_tnode *tn;
-	u32 obj_id;
-
-	if (!obj)
-		return;
-
-	if (yaffs_skip_verification(obj->my_dev))
-		return;
-
-	dev = obj->my_dev;
-	obj_id = obj->obj_id;
-
-	/* Check file size is consistent with tnode depth */
-	yaffs_addr_to_chunk(dev, obj->variant.file_variant.file_size,
-				&last_chunk, &offset_in_chunk);
-	last_chunk++;
-	x = last_chunk >> YAFFS_TNODES_LEVEL0_BITS;
-	required_depth = 0;
-	while (x > 0) {
-		x >>= YAFFS_TNODES_INTERNAL_BITS;
-		required_depth++;
-	}
-
-	/* Check that the chunks in the tnode tree are all correct.
-	 * We do this by scanning through the tnode tree and
-	 * checking the tags for every chunk match.
-	 */
-
-	if (yaffs_skip_nand_verification(dev))
-		return;
-
-	for (i = 1; i <= last_chunk; i++) {
-		tn = yaffs_find_tnode_0(dev, &obj->variant.file_variant, i);
-
-		if (!tn)
-			continue;
-
-		the_chunk = yaffs_get_group_base(dev, tn, i);
-		if (the_chunk > 0) {
-			yaffs_rd_chunk_tags_nand(dev, the_chunk, NULL,
-						 &tags);
-			if (tags.obj_id != obj_id || tags.chunk_id != i)
-				yaffs_trace(YAFFS_TRACE_VERIFY,
-					"Object %d chunk_id %d NAND mismatch chunk %d tags (%d:%d)",
-					obj_id, i, the_chunk,
-					tags.obj_id, tags.chunk_id);
-		}
-	}
-}
-
-void yaffs_verify_link(struct yaffs_obj *obj)
-{
-	if (obj && yaffs_skip_verification(obj->my_dev))
-		return;
-
-	/* Verify sane equivalent object */
-}
-
-void yaffs_verify_symlink(struct yaffs_obj *obj)
-{
-	if (obj && yaffs_skip_verification(obj->my_dev))
-		return;
-
-	/* Verify symlink string */
-}
-
-void yaffs_verify_special(struct yaffs_obj *obj)
-{
-	if (obj && yaffs_skip_verification(obj->my_dev))
-		return;
-}
-
-void yaffs_verify_obj(struct yaffs_obj *obj)
-{
-	struct yaffs_dev *dev;
-	u32 chunk_min;
-	u32 chunk_max;
-	u32 chunk_id_ok;
-	u32 chunk_in_range;
-	u32 chunk_wrongly_deleted;
-	u32 chunk_valid;
-
-	if (!obj)
-		return;
-
-	if (obj->being_created)
-		return;
-
-	dev = obj->my_dev;
-
-	if (yaffs_skip_verification(dev))
-		return;
-
-	/* Check sane object header chunk */
-
-	chunk_min = dev->internal_start_block * dev->param.chunks_per_block;
-	chunk_max =
-	    (dev->internal_end_block + 1) * dev->param.chunks_per_block - 1;
-
-	chunk_in_range = (((unsigned)(obj->hdr_chunk)) >= chunk_min &&
-			  ((unsigned)(obj->hdr_chunk)) <= chunk_max);
-	chunk_id_ok = chunk_in_range || (obj->hdr_chunk == 0);
-	chunk_valid = chunk_in_range &&
-	    yaffs_check_chunk_bit(dev,
-				  obj->hdr_chunk / dev->param.chunks_per_block,
-				  obj->hdr_chunk % dev->param.chunks_per_block);
-	chunk_wrongly_deleted = chunk_in_range && !chunk_valid;
-
-	if (!obj->fake && (!chunk_id_ok || chunk_wrongly_deleted))
-		yaffs_trace(YAFFS_TRACE_VERIFY,
-			"Obj %d has chunk_id %d %s %s",
-			obj->obj_id, obj->hdr_chunk,
-			chunk_id_ok ? "" : ",out of range",
-			chunk_wrongly_deleted ? ",marked as deleted" : "");
-
-	if (chunk_valid && !yaffs_skip_nand_verification(dev)) {
-		struct yaffs_ext_tags tags;
-		struct yaffs_obj_hdr *oh;
-		u8 *buffer = yaffs_get_temp_buffer(dev);
-
-		oh = (struct yaffs_obj_hdr *)buffer;
-
-		yaffs_rd_chunk_tags_nand(dev, obj->hdr_chunk, buffer, &tags);
-
-		yaffs_verify_oh(obj, oh, &tags, 1);
-
-		yaffs_release_temp_buffer(dev, buffer);
-	}
-
-	/* Verify it has a parent */
-	if (obj && !obj->fake && (!obj->parent || obj->parent->my_dev != dev)) {
-		yaffs_trace(YAFFS_TRACE_VERIFY,
-			"Obj %d has parent pointer %p which does not look like an object",
-			obj->obj_id, obj->parent);
-	}
-
-	/* Verify parent is a directory */
-	if (obj->parent &&
-	    obj->parent->variant_type != YAFFS_OBJECT_TYPE_DIRECTORY) {
-		yaffs_trace(YAFFS_TRACE_VERIFY,
-			"Obj %d's parent is not a directory (type %d)",
-			obj->obj_id, obj->parent->variant_type);
-	}
-
-	switch (obj->variant_type) {
-	case YAFFS_OBJECT_TYPE_FILE:
-		yaffs_verify_file(obj);
-		break;
-	case YAFFS_OBJECT_TYPE_SYMLINK:
-		yaffs_verify_symlink(obj);
-		break;
-	case YAFFS_OBJECT_TYPE_DIRECTORY:
-		yaffs_verify_dir(obj);
-		break;
-	case YAFFS_OBJECT_TYPE_HARDLINK:
-		yaffs_verify_link(obj);
-		break;
-	case YAFFS_OBJECT_TYPE_SPECIAL:
-		yaffs_verify_special(obj);
-		break;
-	case YAFFS_OBJECT_TYPE_UNKNOWN:
-	default:
-		yaffs_trace(YAFFS_TRACE_VERIFY,
-			"Obj %d has illegaltype %d",
-		   obj->obj_id, obj->variant_type);
-		break;
-	}
-}
-
-void yaffs_verify_objects(struct yaffs_dev *dev)
-{
-	struct yaffs_obj *obj;
-	int i;
-	struct list_head *lh;
-
-	if (yaffs_skip_verification(dev))
-		return;
-
-	/* Iterate through the objects in each hash entry */
-
-	for (i = 0; i < YAFFS_NOBJECT_BUCKETS; i++) {
-		list_for_each(lh, &dev->obj_bucket[i].list) {
-			obj = list_entry(lh, struct yaffs_obj, hash_link);
-			yaffs_verify_obj(obj);
-		}
-	}
-}
-
-void yaffs_verify_obj_in_dir(struct yaffs_obj *obj)
-{
-	struct list_head *lh;
-	struct yaffs_obj *list_obj;
-	int count = 0;
-
-	if (!obj) {
-		yaffs_trace(YAFFS_TRACE_ALWAYS, "No object to verify");
-		BUG();
-		return;
-	}
-
-	if (yaffs_skip_verification(obj->my_dev))
-		return;
-
-	if (!obj->parent) {
-		yaffs_trace(YAFFS_TRACE_ALWAYS, "Object does not have parent");
-		BUG();
-		return;
-	}
-
-	if (obj->parent->variant_type != YAFFS_OBJECT_TYPE_DIRECTORY) {
-		yaffs_trace(YAFFS_TRACE_ALWAYS, "Parent is not directory");
-		BUG();
-	}
-
-	/* Iterate through the objects in each hash entry */
-
-	list_for_each(lh, &obj->parent->variant.dir_variant.children) {
-		list_obj = list_entry(lh, struct yaffs_obj, siblings);
-		yaffs_verify_obj(list_obj);
-		if (obj == list_obj)
-			count++;
-	}
-
-	if (count != 1) {
-		yaffs_trace(YAFFS_TRACE_ALWAYS,
-			"Object in directory %d times",
-			count);
-		BUG();
-	}
-}
-
-void yaffs_verify_dir(struct yaffs_obj *directory)
-{
-	struct list_head *lh;
-	struct yaffs_obj *list_obj;
-
-	if (!directory) {
-		BUG();
-		return;
-	}
-
-	if (yaffs_skip_full_verification(directory->my_dev))
-		return;
-
-	if (directory->variant_type != YAFFS_OBJECT_TYPE_DIRECTORY) {
-		yaffs_trace(YAFFS_TRACE_ALWAYS,
-			"Directory has wrong type: %d",
-			directory->variant_type);
-		BUG();
-	}
-
-	/* Iterate through the objects in each hash entry */
-
-	list_for_each(lh, &directory->variant.dir_variant.children) {
-		list_obj = list_entry(lh, struct yaffs_obj, siblings);
-		if (list_obj->parent != directory) {
-			yaffs_trace(YAFFS_TRACE_ALWAYS,
-				"Object in directory list has wrong parent %p",
-				list_obj->parent);
-			BUG();
-		}
-		yaffs_verify_obj_in_dir(list_obj);
-	}
-}
-
-static int yaffs_free_verification_failures;
-
-void yaffs_verify_free_chunks(struct yaffs_dev *dev)
-{
-	int counted;
-	int difference;
-
-	if (yaffs_skip_verification(dev))
-		return;
-
-	counted = yaffs_count_free_chunks(dev);
-
-	difference = dev->n_free_chunks - counted;
-
-	if (difference) {
-		yaffs_trace(YAFFS_TRACE_ALWAYS,
-			"Freechunks verification failure %d %d %d",
-			dev->n_free_chunks, counted, difference);
-		yaffs_free_verification_failures++;
-	}
-}
-
-int yaffs_verify_file_sane(struct yaffs_obj *in)
-{
-	return YAFFS_OK;
-}

fs/yaffs2/yaffs_verify.h

@@ -1,43 +0,0 @@
-/*
- * YAFFS: Yet another Flash File System . A NAND-flash specific file system.
- *
- * Copyright (C) 2002-2011 Aleph One Ltd.
- *   for Toby Churchill Ltd and Brightstar Engineering
- *
- * Created by Charles Manning <charles@aleph1.co.uk>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU Lesser General Public License version 2.1 as
- * published by the Free Software Foundation.
- *
- * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL.
- */
-
-#ifndef __YAFFS_VERIFY_H__
-#define __YAFFS_VERIFY_H__
-
-#include "yaffs_guts.h"
-
-void yaffs_verify_blk(struct yaffs_dev *dev, struct yaffs_block_info *bi,
-		      int n);
-void yaffs_verify_collected_blk(struct yaffs_dev *dev,
-				struct yaffs_block_info *bi, int n);
-void yaffs_verify_blocks(struct yaffs_dev *dev);
-
-void yaffs_verify_oh(struct yaffs_obj *obj, struct yaffs_obj_hdr *oh,
-		     struct yaffs_ext_tags *tags, int parent_check);
-void yaffs_verify_file(struct yaffs_obj *obj);
-void yaffs_verify_link(struct yaffs_obj *obj);
-void yaffs_verify_symlink(struct yaffs_obj *obj);
-void yaffs_verify_special(struct yaffs_obj *obj);
-void yaffs_verify_obj(struct yaffs_obj *obj);
-void yaffs_verify_objects(struct yaffs_dev *dev);
-void yaffs_verify_obj_in_dir(struct yaffs_obj *obj);
-void yaffs_verify_dir(struct yaffs_obj *directory);
-void yaffs_verify_free_chunks(struct yaffs_dev *dev);
-
-int yaffs_verify_file_sane(struct yaffs_obj *obj);
-
-int yaffs_skip_verification(struct yaffs_dev *dev);
-
-#endif

fs/yaffs2/yaffs_yaffs1.c

@@ -1,420 +0,0 @@
-/*
- * YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
- *
- * Copyright (C) 2002-2011 Aleph One Ltd.
- *   for Toby Churchill Ltd and Brightstar Engineering
- *
- * Created by Charles Manning <charles@aleph1.co.uk>
- *
- * 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 "yaffs_yaffs1.h"
-#include "yportenv.h"
-#include "yaffs_trace.h"
-#include "yaffs_bitmap.h"
-#include "yaffs_getblockinfo.h"
-#include "yaffs_nand.h"
-#include "yaffs_attribs.h"
-#include <dm/devres.h>
-
-int yaffs1_scan(struct yaffs_dev *dev)
-{
-	struct yaffs_ext_tags tags;
-	int blk;
-	int chunk;
-	int c;
-	int deleted;
-	enum yaffs_block_state state;
-	LIST_HEAD(hard_list);
-	struct yaffs_block_info *bi;
-	u32 seq_number;
-	struct yaffs_obj_hdr *oh;
-	struct yaffs_obj *in;
-	struct yaffs_obj *parent;
-	int alloc_failed = 0;
-	struct yaffs_shadow_fixer *shadow_fixers = NULL;
-	u8 *chunk_data;
-
-	yaffs_trace(YAFFS_TRACE_SCAN,
-		"yaffs1_scan starts  intstartblk %d intendblk %d...",
-		dev->internal_start_block, dev->internal_end_block);
-
-	chunk_data = yaffs_get_temp_buffer(dev);
-
-	dev->seq_number = YAFFS_LOWEST_SEQUENCE_NUMBER;
-
-	/* Scan all the blocks to determine their state */
-	bi = dev->block_info;
-	for (blk = dev->internal_start_block; blk <= dev->internal_end_block;
-	     blk++) {
-		yaffs_clear_chunk_bits(dev, blk);
-		bi->pages_in_use = 0;
-		bi->soft_del_pages = 0;
-
-		yaffs_query_init_block_state(dev, blk, &state, &seq_number);
-
-		bi->block_state = state;
-		bi->seq_number = seq_number;
-
-		if (bi->seq_number == YAFFS_SEQUENCE_BAD_BLOCK)
-			bi->block_state = state = YAFFS_BLOCK_STATE_DEAD;
-
-		yaffs_trace(YAFFS_TRACE_SCAN_DEBUG,
-			"Block scanning block %d state %d seq %d",
-			blk, state, seq_number);
-
-		if (state == YAFFS_BLOCK_STATE_DEAD) {
-			yaffs_trace(YAFFS_TRACE_BAD_BLOCKS,
-				"block %d is bad", blk);
-		} else if (state == YAFFS_BLOCK_STATE_EMPTY) {
-			yaffs_trace(YAFFS_TRACE_SCAN_DEBUG, "Block empty ");
-			dev->n_erased_blocks++;
-			dev->n_free_chunks += dev->param.chunks_per_block;
-		}
-		bi++;
-	}
-
-	/* For each block.... */
-	for (blk = dev->internal_start_block;
-	     !alloc_failed && blk <= dev->internal_end_block; blk++) {
-
-		cond_resched();
-
-		bi = yaffs_get_block_info(dev, blk);
-		state = bi->block_state;
-
-		deleted = 0;
-
-		/* For each chunk in each block that needs scanning.... */
-		for (c = 0;
-			!alloc_failed && c < dev->param.chunks_per_block &&
-			state == YAFFS_BLOCK_STATE_NEEDS_SCAN; c++) {
-			/* Read the tags and decide what to do */
-			chunk = blk * dev->param.chunks_per_block + c;
-
-			yaffs_rd_chunk_tags_nand(dev, chunk, NULL, &tags);
-
-			/* Let's have a good look at this chunk... */
-
-			if (tags.ecc_result == YAFFS_ECC_RESULT_UNFIXED ||
-			    tags.is_deleted) {
-				/* YAFFS1 only...
-				 * A deleted chunk
-				 */
-				deleted++;
-				dev->n_free_chunks++;
-			} else if (!tags.chunk_used) {
-				/* An unassigned chunk in the block
-				 * This means that either the block is empty or
-				 * this is the one being allocated from
-				 */
-
-				if (c == 0) {
-					/* We're looking at the first chunk in
-					 *the block so the block is unused */
-					state = YAFFS_BLOCK_STATE_EMPTY;
-					dev->n_erased_blocks++;
-				} else {
-					/* this is the block being allocated */
-					yaffs_trace(YAFFS_TRACE_SCAN,
-						" Allocating from %d %d",
-						blk, c);
-					state = YAFFS_BLOCK_STATE_ALLOCATING;
-					dev->alloc_block = blk;
-					dev->alloc_page = c;
-					dev->alloc_block_finder = blk;
-
-				}
-
-				dev->n_free_chunks +=
-				    (dev->param.chunks_per_block - c);
-			} else if (tags.chunk_id > 0) {
-				/* chunk_id > 0 so it is a data chunk... */
-				unsigned int endpos;
-
-				yaffs_set_chunk_bit(dev, blk, c);
-				bi->pages_in_use++;
-
-				in = yaffs_find_or_create_by_number(dev,
-							tags.obj_id,
-							YAFFS_OBJECT_TYPE_FILE);
-				/* PutChunkIntoFile checks for a clash
-				 * (two data chunks with the same chunk_id).
-				 */
-
-				if (!in)
-					alloc_failed = 1;
-
-				if (in) {
-					if (!yaffs_put_chunk_in_file
-					    (in, tags.chunk_id, chunk, 1))
-						alloc_failed = 1;
-				}
-
-				endpos =
-				    (tags.chunk_id - 1) *
-				    dev->data_bytes_per_chunk +
-				    tags.n_bytes;
-				if (in &&
-				    in->variant_type ==
-				     YAFFS_OBJECT_TYPE_FILE &&
-				    in->variant.file_variant.scanned_size <
-				      endpos) {
-					in->variant.file_variant.scanned_size =
-					    endpos;
-					if (!dev->param.use_header_file_size) {
-						in->variant.
-						    file_variant.file_size =
-						    in->variant.
-						    file_variant.scanned_size;
-					}
-
-				}
-			} else {
-				/* chunk_id == 0, so it is an ObjectHeader.
-				 * Make the object
-				 */
-				yaffs_set_chunk_bit(dev, blk, c);
-				bi->pages_in_use++;
-
-				yaffs_rd_chunk_tags_nand(dev, chunk,
-							 chunk_data, NULL);
-
-				oh = (struct yaffs_obj_hdr *)chunk_data;
-
-				in = yaffs_find_by_number(dev, tags.obj_id);
-				if (in && in->variant_type != oh->type) {
-					/* This should not happen, but somehow
-					 * Wev'e ended up with an obj_id that
-					 * has been reused but not yet deleted,
-					 * and worse still it has changed type.
-					 * Delete the old object.
-					 */
-
-					yaffs_del_obj(in);
-					in = NULL;
-				}
-
-				in = yaffs_find_or_create_by_number(dev,
-								tags.obj_id,
-								oh->type);
-
-				if (!in)
-					alloc_failed = 1;
-
-				if (in && oh->shadows_obj > 0) {
-
-					struct yaffs_shadow_fixer *fixer;
-					fixer =
-						kmalloc(sizeof
-						(struct yaffs_shadow_fixer),
-						GFP_NOFS);
-					if (fixer) {
-						fixer->next = shadow_fixers;
-						shadow_fixers = fixer;
-						fixer->obj_id = tags.obj_id;
-						fixer->shadowed_id =
-						    oh->shadows_obj;
-						yaffs_trace(YAFFS_TRACE_SCAN,
-							" Shadow fixer: %d shadows %d",
-							fixer->obj_id,
-							fixer->shadowed_id);
-
-					}
-
-				}
-
-				if (in && in->valid) {
-					/* We have already filled this one.
-					 * We have a duplicate and need to
-					 * resolve it. */
-
-					unsigned existing_serial = in->serial;
-					unsigned new_serial =
-					    tags.serial_number;
-
-					if (((existing_serial + 1) & 3) ==
-					    new_serial) {
-						/* Use new one - destroy the
-						 * exisiting one */
-						yaffs_chunk_del(dev,
-								in->hdr_chunk,
-								1, __LINE__);
-						in->valid = 0;
-					} else {
-						/* Use existing - destroy
-						 * this one. */
-						yaffs_chunk_del(dev, chunk, 1,
-								__LINE__);
-					}
-				}
-
-				if (in && !in->valid &&
-				    (tags.obj_id == YAFFS_OBJECTID_ROOT ||
-				     tags.obj_id ==
-				     YAFFS_OBJECTID_LOSTNFOUND)) {
-					/* We only load some info, don't fiddle
-					 * with directory structure */
-					in->valid = 1;
-					in->variant_type = oh->type;
-
-					in->yst_mode = oh->yst_mode;
-					yaffs_load_attribs(in, oh);
-					in->hdr_chunk = chunk;
-					in->serial = tags.serial_number;
-
-				} else if (in && !in->valid) {
-					/* we need to load this info */
-
-					in->valid = 1;
-					in->variant_type = oh->type;
-
-					in->yst_mode = oh->yst_mode;
-					yaffs_load_attribs(in, oh);
-					in->hdr_chunk = chunk;
-					in->serial = tags.serial_number;
-
-					yaffs_set_obj_name_from_oh(in, oh);
-					in->dirty = 0;
-
-					/* directory stuff...
-					 * hook up to parent
-					 */
-
-					parent =
-					    yaffs_find_or_create_by_number
-					    (dev, oh->parent_obj_id,
-					     YAFFS_OBJECT_TYPE_DIRECTORY);
-					if (!parent)
-						alloc_failed = 1;
-					if (parent && parent->variant_type ==
-					    YAFFS_OBJECT_TYPE_UNKNOWN) {
-						/* Set up as a directory */
-						parent->variant_type =
-						    YAFFS_OBJECT_TYPE_DIRECTORY;
-						INIT_LIST_HEAD(&parent->
-							variant.dir_variant.
-							children);
-					} else if (!parent ||
-						parent->variant_type !=
-						YAFFS_OBJECT_TYPE_DIRECTORY) {
-						/* Hoosterman, a problem....
-						 * We're trying to use a
-						 * non-directory as a directory
-						 */
-
-						yaffs_trace(YAFFS_TRACE_ERROR,
-							"yaffs tragedy: attempting to use non-directory as a directory in scan. Put in lost+found."
-							);
-						parent = dev->lost_n_found;
-					}
-
-					yaffs_add_obj_to_dir(parent, in);
-
-					switch (in->variant_type) {
-					case YAFFS_OBJECT_TYPE_UNKNOWN:
-						/* Todo got a problem */
-						break;
-					case YAFFS_OBJECT_TYPE_FILE:
-						if (dev->param.
-						    use_header_file_size)
-							in->variant.
-							file_variant.file_size
-							= yaffs_oh_to_size(oh);
-						break;
-					case YAFFS_OBJECT_TYPE_HARDLINK:
-						in->variant.
-						    hardlink_variant.equiv_id =
-						    oh->equiv_id;
-						list_add(&in->hard_links,
-								&hard_list);
-						break;
-					case YAFFS_OBJECT_TYPE_DIRECTORY:
-						/* Do nothing */
-						break;
-					case YAFFS_OBJECT_TYPE_SPECIAL:
-						/* Do nothing */
-						break;
-					case YAFFS_OBJECT_TYPE_SYMLINK:
-						in->variant.symlink_variant.
-						    alias =
-						    yaffs_clone_str(oh->alias);
-						if (!in->variant.
-						    symlink_variant.alias)
-							alloc_failed = 1;
-						break;
-					}
-				}
-			}
-		}
-
-		if (state == YAFFS_BLOCK_STATE_NEEDS_SCAN) {
-			/* If we got this far while scanning,
-			 * then the block is fully allocated. */
-			state = YAFFS_BLOCK_STATE_FULL;
-		}
-
-		if (state == YAFFS_BLOCK_STATE_ALLOCATING) {
-			/* If the block was partially allocated then
-			 * treat it as fully allocated. */
-			state = YAFFS_BLOCK_STATE_FULL;
-			dev->alloc_block = -1;
-		}
-
-		bi->block_state = state;
-
-		/* Now let's see if it was dirty */
-		if (bi->pages_in_use == 0 &&
-		    !bi->has_shrink_hdr &&
-		    bi->block_state == YAFFS_BLOCK_STATE_FULL)
-			yaffs_block_became_dirty(dev, blk);
-	}
-
-	/* Ok, we've done all the scanning.
-	 * Fix up the hard link chains.
-	 * We should now have scanned all the objects, now it's time to add
-	 * these hardlinks.
-	 */
-
-	yaffs_link_fixup(dev, &hard_list);
-
-	/*
-	 * Fix up any shadowed objects.
-	 * There should not be more than one of these.
-	 */
-	{
-		struct yaffs_shadow_fixer *fixer;
-		struct yaffs_obj *obj;
-
-		while (shadow_fixers) {
-			fixer = shadow_fixers;
-			shadow_fixers = fixer->next;
-			/* Complete the rename transaction by deleting the
-			 * shadowed object then setting the object header
-			 to unshadowed.
-			 */
-			obj = yaffs_find_by_number(dev, fixer->shadowed_id);
-			if (obj)
-				yaffs_del_obj(obj);
-
-			obj = yaffs_find_by_number(dev, fixer->obj_id);
-
-			if (obj)
-				yaffs_update_oh(obj, NULL, 1, 0, 0, NULL);
-
-			kfree(fixer);
-		}
-	}
-
-	yaffs_release_temp_buffer(dev, chunk_data);
-
-	if (alloc_failed)
-		return YAFFS_FAIL;
-
-	yaffs_trace(YAFFS_TRACE_SCAN, "yaffs1_scan ends");
-
-	return YAFFS_OK;
-}

fs/yaffs2/yaffs_yaffs1.h

@@ -1,22 +0,0 @@
-/*
- * YAFFS: Yet another Flash File System . A NAND-flash specific file system.
- *
- * Copyright (C) 2002-2011 Aleph One Ltd.
- *   for Toby Churchill Ltd and Brightstar Engineering
- *
- * Created by Charles Manning <charles@aleph1.co.uk>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU Lesser General Public License version 2.1 as
- * published by the Free Software Foundation.
- *
- * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL.
- */
-
-#ifndef __YAFFS_YAFFS1_H__
-#define __YAFFS_YAFFS1_H__
-
-#include "yaffs_guts.h"
-int yaffs1_scan(struct yaffs_dev *dev);
-
-#endif

fs/yaffs2/yaffs_yaffs2.h

@@ -1,39 +0,0 @@
-/*
- * YAFFS: Yet another Flash File System . A NAND-flash specific file system.
- *
- * Copyright (C) 2002-2011 Aleph One Ltd.
- *   for Toby Churchill Ltd and Brightstar Engineering
- *
- * Created by Charles Manning <charles@aleph1.co.uk>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU Lesser General Public License version 2.1 as
- * published by the Free Software Foundation.
- *
- * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL.
- */
-
-#ifndef __YAFFS_YAFFS2_H__
-#define __YAFFS_YAFFS2_H__
-
-#include "yaffs_guts.h"
-
-void yaffs_calc_oldest_dirty_seq(struct yaffs_dev *dev);
-void yaffs2_find_oldest_dirty_seq(struct yaffs_dev *dev);
-void yaffs2_clear_oldest_dirty_seq(struct yaffs_dev *dev,
-				   struct yaffs_block_info *bi);
-void yaffs2_update_oldest_dirty_seq(struct yaffs_dev *dev, unsigned block_no,
-				    struct yaffs_block_info *bi);
-int yaffs_block_ok_for_gc(struct yaffs_dev *dev, struct yaffs_block_info *bi);
-u32 yaffs2_find_refresh_block(struct yaffs_dev *dev);
-int yaffs2_checkpt_required(struct yaffs_dev *dev);
-int yaffs_calc_checkpt_blocks_required(struct yaffs_dev *dev);
-
-void yaffs2_checkpt_invalidate(struct yaffs_dev *dev);
-int yaffs2_checkpt_save(struct yaffs_dev *dev);
-int yaffs2_checkpt_restore(struct yaffs_dev *dev);
-
-int yaffs2_handle_hole(struct yaffs_obj *obj, loff_t new_size);
-int yaffs2_scan_backwards(struct yaffs_dev *dev);
-
-#endif

fs/yaffs2/yaffscfg.h

@@ -1,34 +0,0 @@
-/*
- * YAFFS: Yet another Flash File System . A NAND-flash specific file system.
- *
- * Copyright (C) 2002-2011 Aleph One Ltd.
- *   for Toby Churchill Ltd and Brightstar Engineering
- *
- * Created by Charles Manning <charles@aleph1.co.uk>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU Lesser General Public License version 2.1 as
- * published by the Free Software Foundation.
- *
- * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL.
- */
-
-/*
- * Header file for using yaffs in an application via
- * a direct interface.
- */
-
-#ifndef __YAFFSCFG_H__
-#define __YAFFSCFG_H__
-
-#include "yportenv.h"
-
-#define YAFFSFS_N_HANDLES	100
-#define YAFFSFS_N_DSC		20
-
-struct yaffsfs_DeviceConfiguration {
-	const YCHAR *prefix;
-	struct yaffs_dev *dev;
-};
-
-#endif

fs/yaffs2/yaffsfs.h

@@ -1,199 +0,0 @@
-/*
- * YAFFS: Yet another Flash File System . A NAND-flash specific file system.
- *
- * Copyright (C) 2002-2011 Aleph One Ltd.
- *   for Toby Churchill Ltd and Brightstar Engineering
- *
- * Created by Charles Manning <charles@aleph1.co.uk>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU Lesser General Public License version 2.1 as
- * published by the Free Software Foundation.
- *
- * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL.
- */
-
-/*
- * Header file for using yaffs in an application via
- * a direct interface.
- */
-
-#ifndef __YAFFSFS_H__
-#define __YAFFSFS_H__
-
-#include "yaffscfg.h"
-#include "yportenv.h"
-
-#ifndef NAME_MAX
-#define NAME_MAX	256
-#endif
-
-#define YAFFS_MAX_FILE_SIZE (0x800000000LL - 1)
-
-struct yaffs_dirent {
-	long d_ino;			/* inode number */
-	off_t d_off;			/* offset to this dirent */
-	unsigned short d_reclen;	/* length of this dirent */
-	YUCHAR d_type;			/* type of this record */
-	YCHAR d_name[NAME_MAX+1];	/* file name (null-terminated) */
-	unsigned d_dont_use;		/* debug: not for public consumption */
-};
-
-typedef struct opaque_structure yaffs_DIR;
-
-struct yaffs_stat {
-	int		st_dev;		/* device */
-	int		st_ino;		/* inode */
-	unsigned	st_mode;	/* protection */
-	int		st_nlink;	/* number of hard links */
-	int		st_uid;		/* user ID of owner */
-	int		st_gid;		/* group ID of owner */
-	unsigned	st_rdev;	/* device type (if inode device) */
-	loff_t		st_size;	/* total size, in bytes */
-	unsigned long	st_blksize;	/* blocksize for filesystem I/O */
-	unsigned long	st_blocks;	/* number of blocks allocated */
-#ifdef CONFIG_YAFFS_WINCE
-	/* Special 64-bit times for WinCE */
-	unsigned long	yst_wince_atime[2];
-	unsigned long	yst_wince_mtime[2];
-	unsigned long	yst_wince_ctime[2];
-#else
-	unsigned long	yst_atime;	/* time of last access */
-	unsigned long	yst_mtime;	/* time of last modification */
-	unsigned long	yst_ctime;	/* time of last change */
-#endif
-};
-
-struct yaffs_utimbuf {
-	unsigned long actime;
-	unsigned long modtime;
-};
-
-int yaffs_open(const YCHAR *path, int oflag, int mode) ;
-
-int yaffs_close(int fd) ;
-int yaffs_fsync(int fd) ;
-int yaffs_fdatasync(int fd) ;
-int yaffs_flush(int fd) ; /* same as yaffs_fsync() */
-
-int yaffs_access(const YCHAR *path, int amode);
-
-int yaffs_dup(int fd);
-
-int yaffs_read(int fd, void *buf, unsigned int nbyte) ;
-int yaffs_write(int fd, const void *buf, unsigned int nbyte) ;
-
-int yaffs_pread(int fd, void *buf, unsigned int nbyte, loff_t offset);
-int yaffs_pwrite(int fd, const void *buf, unsigned int nbyte, loff_t offset);
-
-loff_t yaffs_lseek(int fd, loff_t offset, int whence) ;
-
-int yaffs_truncate(const YCHAR *path, loff_t new_size);
-int yaffs_ftruncate(int fd, loff_t new_size);
-
-int yaffs_unlink(const YCHAR *path) ;
-int yaffs_rename(const YCHAR *oldPath, const YCHAR *newPath) ;
-
-int yaffs_stat(const YCHAR *path, struct yaffs_stat *buf) ;
-int yaffs_lstat(const YCHAR *path, struct yaffs_stat *buf) ;
-int yaffs_fstat(int fd, struct yaffs_stat *buf) ;
-
-int yaffs_utime(const YCHAR *path, const struct yaffs_utimbuf *buf);
-int yaffs_futime(int fd, const struct yaffs_utimbuf *buf);
-
-int yaffs_setxattr(const char *path, const char *name,
-			const void *data, int size, int flags);
-int yaffs_lsetxattr(const char *path, const char *name,
-			const void *data, int size, int flags);
-int yaffs_fsetxattr(int fd, const char *name,
-			const void *data, int size, int flags);
-
-int yaffs_getxattr(const char *path, const char *name,
-			void *data, int size);
-int yaffs_lgetxattr(const char *path, const char *name,
-			void *data, int size);
-int yaffs_fgetxattr(int fd, const char *name,
-			void *data, int size);
-
-int yaffs_removexattr(const char *path, const char *name);
-int yaffs_lremovexattr(const char *path, const char *name);
-int yaffs_fremovexattr(int fd, const char *name);
-
-int yaffs_listxattr(const char *path, char *list, int size);
-int yaffs_llistxattr(const char *path, char *list, int size);
-int yaffs_flistxattr(int fd, char *list, int size);
-
-#ifdef CONFIG_YAFFS_WINCE
-
-int yaffs_set_wince_times(int fd,
-			const unsigned *wctime,
-			const unsigned *watime,
-			const unsigned *wmtime);
-int yaffs_get_wince_times(int fd,
-			unsigned *wctime,
-			unsigned *watime,
-			unsigned *wmtime);
-
-#endif
-
-int yaffs_chmod(const YCHAR *path, mode_t mode);
-int yaffs_fchmod(int fd, mode_t mode);
-
-int yaffs_mkdir(const YCHAR *path, mode_t mode) ;
-int yaffs_rmdir(const YCHAR *path) ;
-
-yaffs_DIR *yaffs_opendir(const YCHAR *dirname) ;
-struct yaffs_dirent *yaffs_readdir(yaffs_DIR *dirp) ;
-void yaffs_rewinddir(yaffs_DIR *dirp) ;
-int yaffs_closedir(yaffs_DIR *dirp) ;
-
-int yaffs_mount(const YCHAR *path) ;
-int yaffs_mount2(const YCHAR *path, int read_only);
-int yaffs_mount_common(const YCHAR *path, int read_only, int skip_checkpt);
-
-int yaffs_unmount(const YCHAR *path) ;
-int yaffs_unmount2(const YCHAR *path, int force);
-int yaffs_remount(const YCHAR *path, int force, int read_only);
-
-int yaffs_sync(const YCHAR *path) ;
-
-int yaffs_symlink(const YCHAR *oldpath, const YCHAR *newpath);
-int yaffs_readlink(const YCHAR *path, YCHAR *buf, int bufsiz);
-
-int yaffs_link(const YCHAR *oldpath, const YCHAR *newpath);
-int yaffs_mknod(const YCHAR *pathname, mode_t mode, dev_t dev);
-
-loff_t yaffs_freespace(const YCHAR *path);
-loff_t yaffs_totalspace(const YCHAR *path);
-
-int yaffs_inodecount(const YCHAR *path);
-
-int yaffs_n_handles(const YCHAR *path);
-
-#define YAFFS_SHARE_READ  1
-#define YAFFS_SHARE_WRITE 2
-int yaffs_open_sharing(const YCHAR *path, int oflag, int mode, int shareMode);
-
-struct yaffs_dev;
-void yaffs_add_device(struct yaffs_dev *dev);
-
-int yaffs_start_up(void);
-int yaffsfs_GetLastError(void);
-
-/* Functions to iterate through devices. NB Use with extreme care! */
-void yaffs_dev_rewind(void);
-struct yaffs_dev *yaffs_next_dev(void);
-
-/* Function to get the last error */
-int yaffs_get_error(void);
-const char *yaffs_error_to_str(int err);
-
-/* Function only for debugging */
-void *yaffs_getdev(const YCHAR *path);
-int yaffs_dump_dev(const YCHAR *path);
-int yaffs_set_error(int error);
-
-/* Trace control functions */
-unsigned  yaffs_set_trace(unsigned tm);
-unsigned  yaffs_get_trace(void);
-#endif

fs/yaffs2/ydirectenv.h

@@ -1,77 +0,0 @@
-/*
- * YAFFS: Yet another Flash File System . A NAND-flash specific file system.
- *
- * Copyright (C) 2002-2011 Aleph One Ltd.
- *   for Toby Churchill Ltd and Brightstar Engineering
- *
- * Created by Charles Manning <charles@aleph1.co.uk>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU Lesser General Public License version 2.1 as
- * published by the Free Software Foundation.
- *
- * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL.
- */
-
-/*
- * ydirectenv.h: Environment wrappers for YAFFS direct.
- */
-
-#ifndef __YDIRECTENV_H__
-#define __YDIRECTENV_H__
-
-#include <malloc.h>
-#include <linux/compat.h>
-
-#include "yaffs_osglue.h"
-
-void yaffs_bug_fn(const char *file_name, int line_no);
-
-#define YCHAR char
-#define YUCHAR unsigned char
-#define _Y(x) x
-
-#define yaffs_strcat(a, b)	strcat(a, b)
-#define yaffs_strcpy(a, b)	strcpy(a, b)
-#define yaffs_strncpy(a, b, c)	strncpy(a, b, c)
-#define yaffs_strnlen(s, m)	strnlen(s, m)
-#ifdef CONFIG_YAFFS_CASE_INSENSITIVE
-#define yaffs_strcmp(a, b)	strcasecmp(a, b)
-#define yaffs_strncmp(a, b, c)	strncasecmp(a, b, c)
-#else
-#define yaffs_strcmp(a, b)	strcmp(a, b)
-#define yaffs_strncmp(a, b, c)	strncmp(a, b, c)
-#endif
-
-void yaffs_qsort(void *aa, size_t n, size_t es,
-		int (*cmp)(const void *, const void *));
-
-#define sort(base, n, sz, cmp_fn, swp) yaffs_qsort(base, n, sz, cmp_fn)
-
-#define YAFFS_PATH_DIVIDERS  "/"
-
-#ifdef NO_inline
-#define inline
-#endif
-
-#define yaffs_trace(msk, fmt, ...) do { \
-	if (yaffs_trace_mask & (msk)) \
-		printf("yaffs: " fmt "\n", ##__VA_ARGS__); \
-} while (0)
-
-#define YAFFS_LOSTNFOUND_NAME		"lost+found"
-#define YAFFS_LOSTNFOUND_PREFIX		"obj"
-
-#include "yaffscfg.h"
-
-#define Y_CURRENT_TIME yaffsfs_CurrentTime()
-#define Y_TIME_CONVERT(x) x
-
-#define YAFFS_ROOT_MODE			0666
-#define YAFFS_LOSTNFOUND_MODE		0666
-
-#include <linux/list.h>
-
-#include "yaffsfs.h"
-
-#endif

fs/yaffs2/yportenv.h

@@ -1,301 +0,0 @@
-/*
- * YAFFS: Yet another Flash File System . A NAND-flash specific file system.
- *
- * Copyright (C) 2002-2011 Aleph One Ltd.
- *   for Toby Churchill Ltd and Brightstar Engineering
- *
- * Created by Charles Manning <charles@aleph1.co.uk>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU Lesser General Public License version 2.1 as
- * published by the Free Software Foundation.
- *
- * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL.
- */
-
-#ifndef __YPORTENV_H__
-#define __YPORTENV_H__
-
-#include <linux/bug.h>
-#include <linux/types.h>
-
-/* Definition of types */
-#ifdef CONFIG_YAFFS_DEFINES_TYPES
-typedef unsigned char u8;
-typedef unsigned short u16;
-typedef unsigned u32;
-#endif
-
-#ifdef CONFIG_YAFFS_PROVIDE_DEFS
-/* File types */
-
-#define DT_UNKNOWN	0
-#define DT_FIFO		1
-#define DT_CHR		2
-#define DT_DIR		4
-#define DT_BLK		6
-#define DT_REG		8
-#define DT_LNK		10
-#define DT_SOCK		12
-#define DT_WHT		14
-
-/*
- * Attribute flags.
- * These are or-ed together to select what has been changed.
- */
-#define ATTR_MODE	1
-#define ATTR_UID	2
-#define ATTR_GID	4
-#define ATTR_SIZE	8
-#define ATTR_ATIME	16
-#define ATTR_MTIME	32
-#define ATTR_CTIME	64
-
-struct iattr {
-	unsigned int ia_valid;
-	unsigned ia_mode;
-	unsigned ia_uid;
-	unsigned ia_gid;
-	unsigned ia_size;
-	unsigned ia_atime;
-	unsigned ia_mtime;
-	unsigned ia_ctime;
-	unsigned int ia_attr_flags;
-};
-
-#endif
-
-#if defined CONFIG_YAFFS_WINCE
-
-#include "ywinceenv.h"
-
-#elif defined CONFIG_YAFFS_DIRECT
-
-/* Direct interface */
-#include "ydirectenv.h"
-
-#elif defined CONFIG_YAFFS_UTIL
-
-#include "yutilsenv.h"
-
-#else
-/* Should have specified a configuration type */
-#error Unknown configuration
-
-#endif
-
-#if defined(CONFIG_YAFFS_DIRECT) || defined(CONFIG_YAFFS_WINCE)
-
-#ifdef CONFIG_YAFFSFS_PROVIDE_VALUES
-
-#ifndef O_RDONLY
-#define O_RDONLY	00
-#endif
-
-#ifndef O_WRONLY
-#define O_WRONLY	01
-#endif
-
-#ifndef O_RDWR
-#define O_RDWR		02
-#endif
-
-#ifndef O_CREAT
-#define O_CREAT		0100
-#endif
-
-#ifndef O_EXCL
-#define O_EXCL		0200
-#endif
-
-#ifndef O_TRUNC
-#define O_TRUNC		01000
-#endif
-
-#ifndef O_APPEND
-#define O_APPEND	02000
-#endif
-
-#ifndef SEEK_SET
-#define SEEK_SET	0
-#endif
-
-#ifndef SEEK_CUR
-#define SEEK_CUR	1
-#endif
-
-#ifndef SEEK_END
-#define SEEK_END	2
-#endif
-
-#ifndef EBUSY
-#define EBUSY	16
-#endif
-
-#ifndef ENODEV
-#define ENODEV	19
-#endif
-
-#ifndef EINVAL
-#define EINVAL	22
-#endif
-
-#ifndef ENFILE
-#define ENFILE	23
-#endif
-
-#ifndef EBADF
-#define EBADF	9
-#endif
-
-#ifndef EACCES
-#define EACCES	13
-#endif
-
-#ifndef EXDEV
-#define EXDEV	18
-#endif
-
-#ifndef ENOENT
-#define ENOENT	2
-#endif
-
-#ifndef ENOSPC
-#define ENOSPC	28
-#endif
-
-#ifndef EROFS
-#define EROFS	30
-#endif
-
-#ifndef ERANGE
-#define ERANGE 34
-#endif
-
-#ifndef ENODATA
-#define ENODATA 61
-#endif
-
-#ifndef ENOTEMPTY
-#define ENOTEMPTY 39
-#endif
-
-#ifndef ENAMETOOLONG
-#define ENAMETOOLONG 36
-#endif
-
-#ifndef ENOMEM
-#define ENOMEM 12
-#endif
-
-#ifndef EFAULT
-#define EFAULT 14
-#endif
-
-#ifndef EEXIST
-#define EEXIST 17
-#endif
-
-#ifndef ENOTDIR
-#define ENOTDIR 20
-#endif
-
-#ifndef EISDIR
-#define EISDIR 21
-#endif
-
-#ifndef ELOOP
-#define ELOOP	40
-#endif
-
-/* Mode flags */
-
-#ifndef S_IFMT
-#define S_IFMT		0170000
-#endif
-
-#ifndef S_IFSOCK
-#define S_IFSOCK	0140000
-#endif
-
-#ifndef S_IFIFO
-#define S_IFIFO		0010000
-#endif
-
-#ifndef S_IFCHR
-#define S_IFCHR		0020000
-#endif
-
-#ifndef S_IFBLK
-#define S_IFBLK		0060000
-#endif
-
-#ifndef S_IFLNK
-#define S_IFLNK		0120000
-#endif
-
-#ifndef S_IFDIR
-#define S_IFDIR		0040000
-#endif
-
-#ifndef S_IFREG
-#define S_IFREG		0100000
-#endif
-
-#define S_ISSOCK(m)	(((m) & S_IFMT) == S_IFSOCK)
-#define S_ISLNK(m)	(((m) & S_IFMT) == S_IFLNK)
-#define S_ISDIR(m)	(((m) & S_IFMT) == S_IFDIR)
-#define S_ISREG(m)	(((m) & S_IFMT) == S_IFREG)
-#define S_ISBLK(m)	(((m) & S_IFMT) == S_IFBLK)
-#define S_ISCHR(m)	(((m) & S_IFMT) == S_IFCHR)
-#define S_ISFIFO(m)	(((m) & S_IFMT) == S_IFIFO)
-
-#ifndef S_IREAD
-#define S_IREAD		0000400
-#endif
-
-#ifndef S_IWRITE
-#define	S_IWRITE	0000200
-#endif
-
-#ifndef S_IEXEC
-#define	S_IEXEC	0000100
-#endif
-
-#ifndef XATTR_CREATE
-#define XATTR_CREATE 1
-#endif
-
-#ifndef XATTR_REPLACE
-#define XATTR_REPLACE 2
-#endif
-
-#ifndef R_OK
-#define R_OK	4
-#define W_OK	2
-#define X_OK	1
-#define F_OK	0
-#endif
-
-#else
-#include <errno.h>
-#include <sys/stat.h>
-#include <fcntl.h>
-#endif
-
-#endif
-
-#ifndef Y_DUMP_STACK
-#define Y_DUMP_STACK() do { } while (0)
-#endif
-
-#ifndef BUG
-#define BUG() do {\
-	yaffs_trace(YAFFS_TRACE_BUG,\
-		"==>> yaffs bug: " __FILE__ " %d",\
-		__LINE__);\
-	Y_DUMP_STACK();\
-} while (0)
-#endif
-
-#endif