btrfs-progs: check for matching free space in cache

We have this check in the kernel but not in userspace, which makes fsck
fail when we wouldn't have a problem in the kernel.  This was meant to
catch this case because it really isn't good, unfortunately it will
require a design change to fix in the kernel so in the meantime add this
check so we can be sure our tests only catch real problems.  Thanks,

Signed-off-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: David Sterba <dsterba@suse.cz>

1 files changed, 1 insertions, 0 deletions

diff --git a/ctree.h b/ctree.h
index 2042771..10dc838 100644
--- a/ctree.h
+++ b/ctree.h
@@ -936,6 +936,7 @@ struct btrfs_block_group_cache {
 	struct btrfs_block_group_item item;
 	struct btrfs_space_info *space_info;
 	struct btrfs_free_space_ctl *free_space_ctl;
+	u64 bytes_super;
 	u64 pinned;
 	u64 flags;
 	int cached;