Djam/u-boot
1
0
Fork 0
mirror of https://github.com/u-boot/u-boot.git synced 2025-05-09 03:21:51 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

ext4: Add helper functions for block group descriptor field access

Browse source 
The helper functions encapsulate access of the block group descriptors,
independent of group descriptor size. The helpers also deal with the
endianess of the fields, and with split fields like free_blocks/
free_blocks_high.

Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de>
This commit is contained in:
Stefan Brüns 2016-09-20 01:12:42 +02:00 • committed by Tom Rini
parent fc214ef909
commit 9f5dd8b6e2
2 changed files with 94 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

12
fs/ext4/ext4_common.h
View file

@ -74,5 +74,17 @@ void ext4fs_allocate_blocks(struct ext2_inode *file_inode,
unsigned int total_remaining_blocks,
unsigned int *total_no_of_block);
void put_ext4(uint64_t off, void *buf, uint32_t size);
struct ext2_block_group *ext4fs_get_group_descriptor
(const struct ext_filesystem *fs, uint32_t bg_idx);
uint64_t ext4fs_bg_get_block_id(const struct ext2_block_group *bg,
const struct ext_filesystem *fs);
uint64_t ext4fs_bg_get_inode_id(const struct ext2_block_group *bg,
const struct ext_filesystem *fs);
uint64_t ext4fs_bg_get_inode_table_id(const struct ext2_block_group *bg,
const struct ext_filesystem *fs);
uint64_t ext4fs_sb_get_free_blocks(const struct ext2_sblock *sb);
void ext4fs_sb_set_free_blocks(struct ext2_sblock *sb, uint64_t free_blocks);
uint32_t ext4fs_bg_get_free_blocks(const struct ext2_block_group *bg,
const struct ext_filesystem *fs);
#endif
#endif