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f2fs: recover date requested by fdatasync

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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>
This commit is contained in:
Jaegeuk Kim 2013-07-03 10:55:52 +09:00
parent 36f571e9ed
commit e5d2385ed6
1 changed files with 4 additions and 3 deletions
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7
fs/f2fs/file.c
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@ -147,9 +147,10 @@ int f2fs_sync_file(struct file *file, loff_t start, loff_t end, int datasync)
mutex_lock(&inode->i_mutex); 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) if (!S_ISREG(inode->i_mode) || inode->i_nlink != 1)
need_cp = true; need_cp = true;
else if (file_wrong_pino(inode)) else if (file_wrong_pino(inode))