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f2fs: update f2fs document regarding to fsync_mode

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This patch adds missing fsync_mode entry in f2fs document.

Fixes: 04485987f0 ("f2fs: introduce async IPU policy")
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Jaegeuk Kim
2020-01-08 15:10:02 -08:00
parent 0e7f41974e
commit d7b0a23d81
2 changed files with 5 additions and 3 deletions
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5
fs/f2fs/segment.h
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@@ -607,9 +607,10 @@ static inline int utilization(struct f2fs_sb_info *sbi)
* threashold,
* F2FS_IPU_FSYNC - activated in fsync path only for high performance flash
* storages. IPU will be triggered only if the # of dirty
* pages over min_fsync_blocks.
* pages over min_fsync_blocks. (=default option)
* F2FS_IPU_ASYNC - do IPU given by asynchronous write requests.
* F2FS_IPU_NOCACHE - disable IPU bio cache.
* F2FS_IPUT_DISABLE - disable IPU. (=default option)
* F2FS_IPUT_DISABLE - disable IPU. (=default option in LFS mode)
*/
#define DEF_MIN_IPU_UTIL 70
#define DEF_MIN_FSYNC_BLOCKS 8