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| author | Jaegeuk Kim <jaegeuk.kim@samsung.com> | 2013-07-03 10:55:52 +0900 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk.kim@samsung.com> | 2013-07-30 15:17:02 +0900 |
| commit | e5d2385ed6d8543a8884afc28aee44d46cfe64be (patch) | |
| tree | fc3e1a9a7ff1e038aacc1a1b45f75e7048932b05 /fs/f2fs | |
| parent | 36f571e9ed0419e73d127e18aa8992ced867268c (diff) | |
| download | lwn-e5d2385ed6d8543a8884afc28aee44d46cfe64be.tar.gz lwn-e5d2385ed6d8543a8884afc28aee44d46cfe64be.zip | |
f2fs: recover date requested by fdatasync
In order to support SQLite that uses fdatasync instead of fsync, we should
guarantee the data requested by fdatasync can be recovered after sudden-power-
off.
So, let's remove the fdatasync condition in f2fs_sync_file.
Otherwise, we can restore the data after sudden-power-off due to nonexistence
of any fsync mark'ed node blocks.
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
Diffstat (limited to 'fs/f2fs')
| -rw-r--r-- | fs/f2fs/file.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c index d2d2b7dbdcc1..157a6357f14c 100644 --- a/fs/f2fs/file.c +++ b/fs/f2fs/file.c @@ -147,9 +147,10 @@ int f2fs_sync_file(struct file *file, loff_t start, loff_t end, int datasync) mutex_lock(&inode->i_mutex); - if (datasync && !(inode->i_state & I_DIRTY_DATASYNC)) - goto out; - + /* + * Both of fdatasync() and fsync() are able to be recovered from + * sudden-power-off. + */ if (!S_ISREG(inode->i_mode) || inode->i_nlink != 1) need_cp = true; else if (file_wrong_pino(inode)) |