Commit 8068a47e authored by Anand Jain's avatar Anand Jain Committed by Chris Mason
Browse files

btrfs: use BTRFS_SUPER_INFO_SIZE macro at btrfs_read_dev_super() 



Signed-off-by: default avatarAnand Jain <anand.jain@oracle.com>
Signed-off-by: default avatarJosef Bacik <jbacik@fusionio.com>
Signed-off-by: default avatarChris Mason <chris.mason@fusionio.com>
parent 125bac01

fs/btrfs/disk-io.c

+4 −2
Original line number Diff line number Diff line
@@ -2984,9 +2984,11 @@ struct buffer_head *btrfs_read_dev_super(struct block_device *bdev) 
	 */

	for (i = 0; i < 1; i++) {

		bytenr = btrfs_sb_offset(i);

		if (bytenr + 4096 >= i_size_read(bdev->bd_inode))

		if (bytenr + BTRFS_SUPER_INFO_SIZE >=

					i_size_read(bdev->bd_inode))

			break;

		bh = __bread(bdev, bytenr / 4096, 4096);

		bh = __bread(bdev, bytenr / 4096,

					BTRFS_SUPER_INFO_SIZE);

		if (!bh)

			continue;