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| author | Junling Zheng <zhengjunling@huawei.com> | 2018-03-07 12:07:49 +0800 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2018-03-17 13:57:28 +0900 |
| commit | 93cf93f17c8ef7c03d828914eaef88d8e585490d (patch) | |
| tree | c6b82ef66fd921f65c8b15dade3dec74395d09db /fs/f2fs/dir.c | |
| parent | eea52882d848827ca812282118cd17025a76a891 (diff) | |
| download | linux-93cf93f17c8ef7c03d828914eaef88d8e585490d.tar.bz2 | |
f2fs: introduce mount option for fsync mode
Commit "0a007b97aad6"(f2fs: recover directory operations by fsync)
fixed xfstest generic/342 case, but it also increased the written
data and caused the performance degradation. In most cases, there's
no need to do so heavy fsync actually.
So we introduce new mount option "fsync_mode={posix,strict}" to
control the policy of fsync. "fsync_mode=posix" is set by default,
and means that f2fs uses a light fsync, which follows POSIX semantics.
And "fsync_mode=strict" means that it's a heavy fsync, which behaves
in line with xfs, ext4 and btrfs, where generic/342 will pass, but
the performance will regress.
Signed-off-by: Junling Zheng <zhengjunling@huawei.com>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs/dir.c')
| -rw-r--r-- | fs/f2fs/dir.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/fs/f2fs/dir.c b/fs/f2fs/dir.c index 797eb05cb538..87c51709bc48 100644 --- a/fs/f2fs/dir.c +++ b/fs/f2fs/dir.c @@ -704,7 +704,8 @@ void f2fs_delete_entry(struct f2fs_dir_entry *dentry, struct page *page, f2fs_update_time(F2FS_I_SB(dir), REQ_TIME); - add_ino_entry(F2FS_I_SB(dir), dir->i_ino, TRANS_DIR_INO); + if (F2FS_I_SB(dir)->fsync_mode == FSYNC_MODE_STRICT) + add_ino_entry(F2FS_I_SB(dir), dir->i_ino, TRANS_DIR_INO); if (f2fs_has_inline_dentry(dir)) return f2fs_delete_inline_entry(dentry, page, dir, inode); |