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| author | Chao Yu <chao2.yu@samsung.com> | 2015-07-15 11:29:49 +0200 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2015-08-05 17:08:06 +0200 |
| commit | 727edac572034557d207b293a47de25145e3d58c (patch) | |
| tree | 984e7ceae8a02605c0626375f26abab96126c440 /fs/f2fs/debug.c | |
| parent | f2fs: stat inline xattr inode number (diff) | |
| download | linux-727edac572034557d207b293a47de25145e3d58c.tar.xz linux-727edac572034557d207b293a47de25145e3d58c.zip | |
f2fs: use atomic_t to record hit ratio info of extent cache
Variables for recording extent cache ratio info were updated without
protection, this patch tries to alter them to atomic_t type for more
accurate stat.
Signed-off-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs/debug.c')
| -rw-r--r-- | fs/f2fs/debug.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/fs/f2fs/debug.c b/fs/f2fs/debug.c index 2aeaf4e214db..bc215fd6c402 100644 --- a/fs/f2fs/debug.c +++ b/fs/f2fs/debug.c @@ -33,8 +33,8 @@ static void update_general_status(struct f2fs_sb_info *sbi) int i; /* validation check of the segment numbers */ - si->hit_ext = sbi->read_hit_ext; - si->total_ext = sbi->total_hit_ext; + si->hit_ext = atomic_read(&sbi->read_hit_ext); + si->total_ext = atomic_read(&sbi->total_hit_ext); si->ext_tree = sbi->total_ext_tree; si->ext_node = atomic_read(&sbi->total_ext_node); si->ndirty_node = get_pages(sbi, F2FS_DIRTY_NODES); @@ -369,6 +369,9 @@ int f2fs_build_stats(struct f2fs_sb_info *sbi) si->sbi = sbi; sbi->stat_info = si; + atomic_set(&sbi->total_hit_ext, 0); + atomic_set(&sbi->read_hit_ext, 0); + atomic_set(&sbi->inline_xattr, 0); atomic_set(&sbi->inline_inode, 0); atomic_set(&sbi->inline_dir, 0); |