btrfs_free_dummy_block_group
void btrfs_free_dummy_block_group(struct btrfs_block_group *cache);
DEFINE_FREE(btrfs_free_dummy_block_group, struct btrfs_block_group *,
btrfs_free_dummy_block_group(_T));
btrfs_free_dummy_block_group(cache);
btrfs_free_dummy_block_group(cache);