btrfs: zoned: don't skip block group profile checks on conventional zones

On a zoned filesystem with conventional zones, we're skipping the block
group profile checks for the conventional zones.

This allows converting a zoned filesystem's data block groups to RAID when
all of the zones backing the chunk are on conventional zones.  But this
will lead to problems, once we're trying to allocate chunks backed by
sequential zones.

So also check for conventional zones when loading a block group's profile
on them.

Reported-by: HAN Yuwei <hrx@bupt.moe>
Link: https://lore.kernel.org/all/1ACD2E3643008A17+da260584-2c7f-432a-9e22-9d390aae84cc@bupt.moe/#t
Reviewed-by: Boris Burkov <boris@bur.io>
Reviewed-by: Naohiro Aota <naohiro.aota@wdc.com>
Signed-off-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

diff --git a/fs/btrfs/zoned.c b/fs/btrfs/zoned.c
index afeb1dc1f43aed2162854faff0d3315ad37775ac..a7f885ae56d34cdad2ffb14e314f448a78e26736 100644 (file)
--- a/fs/btrfs/zoned.c
+++ b/fs/btrfs/zoned.c
@@ -1656,6 +1656,15 @@ int btrfs_load_block_group_zone_info(struct btrfs_block_group *cache, bool new)
        }
 
 out:
+       /* Reject non SINGLE data profiles without RST */
+       if ((map->type & BTRFS_BLOCK_GROUP_DATA) &&
+           (map->type & BTRFS_BLOCK_GROUP_PROFILE_MASK) &&
+           !fs_info->stripe_root) {
+               btrfs_err(fs_info, "zoned: data %s needs raid-stripe-tree",
+                         btrfs_bg_type_to_raid_name(map->type));
+               return -EINVAL;
+       }
+
        if (cache->alloc_offset > cache->zone_capacity) {
                btrfs_err(fs_info,
 "zoned: invalid write pointer %llu (larger than zone capacity %llu) in block group %llu",