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btrfs: tree-checker: Enhance chunk checker to validate chunk profile

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commit 80e46cf22b upstream

Btrfs-progs already have a comprehensive type checker, to ensure there
is only 0 (SINGLE profile) or 1 (DUP/RAID0/1/5/6/10) bit set for chunk
profile bits.

Do the same work for kernel.

Reported-by: Yoon Jungyeon <jungyeon@gatech.edu>
Link: https://bugzilla.kernel.org/show_bug.cgi?id=202765
Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
[sudip: manually backport, use btrfs_err with root->fs_info]
Signed-off-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Qu Wenruo
2019-03-13 12:17:50 +08:00
committed by Greg Kroah-Hartman
parent 84a7342347
commit bd1ea5f04b
1 changed files with 7 additions and 0 deletions
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7
fs/btrfs/volumes.c
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@@ -6414,6 +6414,13 @@ static int btrfs_check_chunk_valid(struct btrfs_root *root,
return -EIO;
}
if (!is_power_of_2(type & BTRFS_BLOCK_GROUP_PROFILE_MASK) &&
(type & BTRFS_BLOCK_GROUP_PROFILE_MASK) != 0) {
btrfs_err(root->fs_info,
"invalid chunk profile flag: 0x%llx, expect 0 or 1 bit set",
type & BTRFS_BLOCK_GROUP_PROFILE_MASK);
return -EUCLEAN;
}
if ((type & BTRFS_BLOCK_GROUP_TYPE_MASK) == 0) {
btrfs_err(root->fs_info, "missing chunk type flag: 0x%llx", type);
return -EIO;