korg/linux
0
0
Fork 0
mirror of https://mirrors.bfsu.edu.cn/git/linux.git synced 2024-11-11 12:28:41 +08:00
Code Issues Packages Projects Releases Wiki Activity

f2fs: update f2fs document regarding to fsync_mode

Browse Source 
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
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
Documentation/filesystems/f2fs.txt
View File

@ -334,7 +334,8 @@ Files in /sys/fs/f2fs/<devname>
updates in f2fs. User can set:
0x01: F2FS_IPU_FORCE, 0x02: F2FS_IPU_SSR,
0x04: F2FS_IPU_UTIL, 0x08: F2FS_IPU_SSR_UTIL,
0x10: F2FS_IPU_FSYNC, 0x40: F2FS_IPU_NOCACHE.
0x10: F2FS_IPU_FSYNC, 0x20: F2FS_IPU_ASYNC,
0x40: F2FS_IPU_NOCACHE.
Refer segment.h for details.
min_ipu_util This parameter controls the threshold to trigger

5
fs/f2fs/segment.h
View File

@ -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