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| author | Jaegeuk Kim <jaegeuk.kim@samsung.com> | 2014-02-24 08:00:13 +0400 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk.kim@samsung.com> | 2014-02-24 11:00:41 +0400 |
| commit | 8b8343fa9d503894ece57acbe46cb36883646685 (patch) | |
| tree | a8650f40e45644e91aad8298038aee3c024a80d8 /fs/f2fs/segment.h | |
| parent | 8a7ed66aaf8ee56b0a6beee4d02e10af5a9e38b2 (diff) | |
| download | linux-8b8343fa9d503894ece57acbe46cb36883646685.tar.xz | |
f2fs: implement a lock-free stat_show
The stat_show is just to show the current status of f2fs.
So, we can remove all the there-in locks.
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
Diffstat (limited to 'fs/f2fs/segment.h')
| -rw-r--r-- | fs/f2fs/segment.h | 27 |
1 files changed, 3 insertions, 24 deletions
diff --git a/fs/f2fs/segment.h b/fs/f2fs/segment.h index 4024546b6361..c3d5e3689ffc 100644 --- a/fs/f2fs/segment.h +++ b/fs/f2fs/segment.h @@ -380,26 +380,12 @@ static inline void get_sit_bitmap(struct f2fs_sb_info *sbi, static inline block_t written_block_count(struct f2fs_sb_info *sbi) { - struct sit_info *sit_i = SIT_I(sbi); - block_t vblocks; - - mutex_lock(&sit_i->sentry_lock); - vblocks = sit_i->written_valid_blocks; - mutex_unlock(&sit_i->sentry_lock); - - return vblocks; + return SIT_I(sbi)->written_valid_blocks; } static inline unsigned int free_segments(struct f2fs_sb_info *sbi) { - struct free_segmap_info *free_i = FREE_I(sbi); - unsigned int free_segs; - - read_lock(&free_i->segmap_lock); - free_segs = free_i->free_segments; - read_unlock(&free_i->segmap_lock); - - return free_segs; + return FREE_I(sbi)->free_segments; } static inline int reserved_segments(struct f2fs_sb_info *sbi) @@ -409,14 +395,7 @@ static inline int reserved_segments(struct f2fs_sb_info *sbi) static inline unsigned int free_sections(struct f2fs_sb_info *sbi) { - struct free_segmap_info *free_i = FREE_I(sbi); - unsigned int free_secs; - - read_lock(&free_i->segmap_lock); - free_secs = free_i->free_sections; - read_unlock(&free_i->segmap_lock); - - return free_secs; + return FREE_I(sbi)->free_sections; } static inline unsigned int prefree_segments(struct f2fs_sb_info *sbi) |