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btrfs-progs: Fix a bug in chunk item extra check and allow degraded chunk. 

For DUP profile, the num_stripes should be 2 not 1.
This causes btrfs offline tool fails on valid image.

Also, num_stripes check is too restrict for btrfsck self test,
as there is some image in degraded mode, so modify it to allow degraded
chunk.

Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
This commit is contained in:
Qu Wenruo 2015-05-15 13:11:14 +08:00 committed by David Sterba
parent f146c40c65
commit 4643934109
1 changed files with 5 additions and 6 deletions
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11
volumes.c
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@ -1649,12 +1649,11 @@ static int read_one_chunk(struct btrfs_root *root, struct btrfs_key *key,
/*
* Device number check against profile
*/
if ((map->type & BTRFS_BLOCK_GROUP_RAID10 && num_stripes < 4 &&
map->sub_stripes < 2) ||
(map->type & BTRFS_BLOCK_GROUP_RAID1 && num_stripes < 2) ||
(map->type & BTRFS_BLOCK_GROUP_RAID5 && num_stripes < 3) ||
(map->type & BTRFS_BLOCK_GROUP_RAID6 && num_stripes < 4) ||
(map->type & BTRFS_BLOCK_GROUP_DUP && num_stripes != 1) ||
if ((map->type & BTRFS_BLOCK_GROUP_RAID10 && map->sub_stripes == 0) ||
(map->type & BTRFS_BLOCK_GROUP_RAID1 && num_stripes < 1) ||
(map->type & BTRFS_BLOCK_GROUP_RAID5 && num_stripes < 2) ||
(map->type & BTRFS_BLOCK_GROUP_RAID6 && num_stripes < 3) ||
(map->type & BTRFS_BLOCK_GROUP_DUP && num_stripes > 2) ||
((map->type & BTRFS_BLOCK_GROUP_PROFILE_MASK) == 0 &&
num_stripes != 1)) {
fprintf(stderr,