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authorJosef Bacik <josef@redhat.com>2010-03-19 23:49:55 +0300
committerChris Mason <chris.mason@oracle.com>2010-03-31 05:19:09 +0400
commit1b1d1f6625e517a08640ddb4b8f8a0e025243fe3 (patch)
treed662fe7e7d9ddec1214982b3dcd955228e18562f /fs/jffs2/jffs2_fs_sb.h
parent6cf8bfbf5e88edfb09a2bf0631a067060f534592 (diff)
downloadlinux-1b1d1f6625e517a08640ddb4b8f8a0e025243fe3.tar.xz
Btrfs: fail to mount if we have problems reading the block groups
We don't actually check the return value of btrfs_read_block_groups, so we can possibly succeed to mount, but then fail to say read the superblock xattr for selinux which will cause the vfs code to deactivate the super. This is a problem because in find_free_extent we just assume that we will find the right space_info for the allocation we want. But if we failed to read the block groups, we won't have setup any space_info's, and we'll hit a NULL pointer deref in find_free_extent. This patch fixes that problem by checking the return value of btrfs_read_block_groups, and failing out properly. I've also added a check in find_free_extent so if for some reason we don't find an appropriate space_info, we just return -ENOSPC. Signed-off-by: Josef Bacik <josef@redhat.com> Signed-off-by: Chris Mason <chris.mason@oracle.com>
Diffstat (limited to 'fs/jffs2/jffs2_fs_sb.h')
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