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| author | Jaegeuk Kim <jaegeuk@kernel.org> | 2014-07-23 20:57:31 +0400 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2014-07-29 16:27:48 +0400 |
| commit | 0f7b2abd188089a44f60e2bf8521d1363ada9e12 (patch) | |
| tree | b03702e8aadcf265bb796c3ec31413ea081fb136 /fs/f2fs/segment.c | |
| parent | 9d847950770da7102d4efc02d0939ce28e3a7dd0 (diff) | |
| download | linux-0f7b2abd188089a44f60e2bf8521d1363ada9e12.tar.xz | |
f2fs: add nobarrier mount option
This patch adds a mount option, nobarrier, in f2fs.
The assumption in here is that file system keeps the IO ordering, but
doesn't care about cache flushes inside the storages.
Reviewed-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs/segment.c')
| -rw-r--r-- | fs/f2fs/segment.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c index 8a6e57d83c79..9fce0f47eb35 100644 --- a/fs/f2fs/segment.c +++ b/fs/f2fs/segment.c @@ -239,6 +239,9 @@ int f2fs_issue_flush(struct f2fs_sb_info *sbi) struct flush_cmd_control *fcc = SM_I(sbi)->cmd_control_info; struct flush_cmd cmd; + if (test_opt(sbi, NOBARRIER)) + return 0; + if (!test_opt(sbi, FLUSH_MERGE)) return blkdev_issue_flush(sbi->sb->s_bdev, GFP_KERNEL, NULL); |