diff options
Diffstat (limited to 'fs/btrfs/disk-io.c')
| -rw-r--r-- | fs/btrfs/disk-io.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c index 3f3bb70ca437..ce6dc95effae 100644 --- a/fs/btrfs/disk-io.c +++ b/fs/btrfs/disk-io.c @@ -2817,6 +2817,20 @@ int open_ctree(struct super_block *sb, } /* + * Verify the type first, if that or the the checksum value are + * corrupted, we'll find out + */ + if (!btrfs_supported_super_csum(btrfs_super_csum_type( + (struct btrfs_super_block *) bh->b_data))) { + btrfs_err(fs_info, "unsupported checksum algorithm: %u", + btrfs_super_csum_type((struct btrfs_super_block *) + bh->b_data)); + err = -EINVAL; + brelse(bh); + goto fail_alloc; + } + + /* * We want to check superblock checksum, the type is stored inside. * Pass the whole disk block of size BTRFS_SUPER_INFO_SIZE (4k). */ |