Commit e5d2385e authored Jul 03, 2013 by Jaegeuk Kim

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>

parent 36f571e9

fs/f2fs/file.c

+4 −3

Original line number	Diff line number	Diff line
		@@ -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))