Commit 0a3404dc authored by Miao Xie's avatar Miao Xie Committed by Josef Bacik
Browse files

Btrfs: fix wrong sync_writers decrement in btrfs_file_aio_write() 



If the checks at the beginning of btrfs_file_aio_write() fail, we needn't
decrease ->sync_writers, because we have not increased it. Fix it.

Signed-off-by: default avatarMiao Xie <miaox@cn.fujitsu.com>
Signed-off-by: default avatarJosef Bacik <jbacik@fusionio.com>
parent 222c81dc

fs/btrfs/file.c

+2 −1
Original line number Diff line number Diff line
@@ -1595,9 +1595,10 @@ static ssize_t btrfs_file_aio_write(struct kiocb *iocb, 
		if (err < 0 && num_written > 0)

			num_written = err;

	}

out:



	if (sync)

		atomic_dec(&BTRFS_I(inode)->sync_writers);

out:

	sb_end_write(inode->i_sb);

	current->backing_dev_info = NULL;

	return num_written ? num_written : err;