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| author | Jaegeuk Kim <jaegeuk.kim@samsung.com> | 2014-03-20 14:10:08 +0400 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk.kim@samsung.com> | 2014-03-20 17:10:11 +0400 |
| commit | d928bfbfe77aa457b765c19e9db8cd4cc72b3c89 (patch) | |
| tree | f56763175e0fbee1e2079c9a330f3d73f971bc5c /fs/f2fs/f2fs.h | |
| parent | 58c410351eba3d24f741c85a0eb9eaf15c94047d (diff) | |
| download | linux-d928bfbfe77aa457b765c19e9db8cd4cc72b3c89.tar.xz | |
f2fs: introduce fi->i_sem to protect fi's info
This patch introduces fi->i_sem to protect fi's info that includes xattr_ver,
pino, i_nlink.
This enables to remove i_mutex during f2fs_sync_file, resulting in performance
improvement when a number of fsync calls are triggered from many concurrent
threads.
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
Diffstat (limited to 'fs/f2fs/f2fs.h')
| -rw-r--r-- | fs/f2fs/f2fs.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h index 05c652493f04..469779ab1d77 100644 --- a/fs/f2fs/f2fs.h +++ b/fs/f2fs/f2fs.h @@ -210,6 +210,7 @@ struct f2fs_inode_info { /* Use below internally in f2fs*/ unsigned long flags; /* use to pass per-file flags */ + struct rw_semaphore i_sem; /* protect fi info */ atomic_t dirty_dents; /* # of dirty dentry pages */ f2fs_hash_t chash; /* hash value of given file name */ unsigned int clevel; /* maximum level of given file name */ |