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| author | Jaegeuk Kim <jaegeuk.kim@samsung.com> | 2014-02-24 13:00:13 +0900 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk.kim@samsung.com> | 2014-02-24 16:00:41 +0900 |
| commit | 8b8343fa9d503894ece57acbe46cb36883646685 (patch) | |
| tree | a8650f40e45644e91aad8298038aee3c024a80d8 /fs/f2fs/debug.c | |
| parent | 8a7ed66aaf8ee56b0a6beee4d02e10af5a9e38b2 (diff) | |
| download | linux-stable-8b8343fa9d503894ece57acbe46cb36883646685.tar.gz linux-stable-8b8343fa9d503894ece57acbe46cb36883646685.tar.bz2 linux-stable-8b8343fa9d503894ece57acbe46cb36883646685.zip | |
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/debug.c')
| -rw-r--r-- | fs/f2fs/debug.c | 3 |
1 files changed, 0 insertions, 3 deletions
diff --git a/fs/f2fs/debug.c b/fs/f2fs/debug.c index 46a12e46179a..b7111c44a918 100644 --- a/fs/f2fs/debug.c +++ b/fs/f2fs/debug.c @@ -86,7 +86,6 @@ static void update_sit_info(struct f2fs_sb_info *sbi) { struct f2fs_stat_info *si = F2FS_STAT(sbi); unsigned int blks_per_sec, hblks_per_sec, total_vblocks, bimodal, dist; - struct sit_info *sit_i = SIT_I(sbi); unsigned int segno, vblocks; int ndirty = 0; @@ -94,7 +93,6 @@ static void update_sit_info(struct f2fs_sb_info *sbi) total_vblocks = 0; blks_per_sec = sbi->segs_per_sec * (1 << sbi->log_blocks_per_seg); hblks_per_sec = blks_per_sec / 2; - mutex_lock(&sit_i->sentry_lock); for (segno = 0; segno < TOTAL_SEGS(sbi); segno += sbi->segs_per_sec) { vblocks = get_valid_blocks(sbi, segno, sbi->segs_per_sec); dist = abs(vblocks - hblks_per_sec); @@ -105,7 +103,6 @@ static void update_sit_info(struct f2fs_sb_info *sbi) ndirty++; } } - mutex_unlock(&sit_i->sentry_lock); dist = TOTAL_SECS(sbi) * hblks_per_sec * hblks_per_sec / 100; si->bimodal = bimodal / dist; if (si->dirty_count) |