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authorAnand Jain <Anand.Jain@oracle.com>2013-07-25 21:29:35 +0400
committerChris Mason <chris.mason@fusionio.com>2013-09-01 16:04:37 +0400
commit8068a47e2a77ecae27cfd0298e8732756f565ed1 (patch)
treee5f5791de996f999059257b6bffcc55cebc081ba /fs/btrfs/disk-io.c
parent125bac016d60e78120e92904a5b2fc3a5ebf0475 (diff)
downloadlinux-8068a47e2a77ecae27cfd0298e8732756f565ed1.tar.xz
btrfs: use BTRFS_SUPER_INFO_SIZE macro at btrfs_read_dev_super()
Signed-off-by: Anand Jain <anand.jain@oracle.com> Signed-off-by: Josef Bacik <jbacik@fusionio.com> Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Diffstat (limited to 'fs/btrfs/disk-io.c')
-rw-r--r--fs/btrfs/disk-io.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 8e2eee67c3a8..13564354c927 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -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;