7232 	struct btrfs_free_cluster *last_ptr = NULL;  in find_free_extent()  local
7283 	last_ptr = fetch_cluster_info(fs_info, space_info, &empty_cluster);  in find_free_extent()
7284 	if (last_ptr) {  in find_free_extent()
7285 		spin_lock(&last_ptr->lock);  in find_free_extent()
7286 		if (last_ptr->block_group)  in find_free_extent()
7287 			hint_byte = last_ptr->window_start;  in find_free_extent()
7288 		if (last_ptr->fragmented) {  in find_free_extent()
7294 			hint_byte = last_ptr->window_start;  in find_free_extent()
7297 		spin_unlock(&last_ptr->lock);  in find_free_extent()
7388 		if (last_ptr && use_cluster) {  in find_free_extent()
7396 							      last_ptr,  in find_free_extent()
7407 						last_ptr,  in find_free_extent()
7413 				spin_unlock(&last_ptr->refill_lock);  in find_free_extent()
7425 			WARN_ON(last_ptr->block_group != used_block_group);  in find_free_extent()
7444 				spin_unlock(&last_ptr->refill_lock);  in find_free_extent()
7454 			btrfs_return_cluster_to_free_space(NULL, last_ptr);  in find_free_extent()
7461 				spin_unlock(&last_ptr->refill_lock);  in find_free_extent()
7471 						       last_ptr, search_start,  in find_free_extent()
7480 							last_ptr,  in find_free_extent()
7486 					spin_unlock(&last_ptr->refill_lock);  in find_free_extent()
7494 				spin_unlock(&last_ptr->refill_lock);  in find_free_extent()
7508 			btrfs_return_cluster_to_free_space(NULL, last_ptr);  in find_free_extent()
7509 			spin_unlock(&last_ptr->refill_lock);  in find_free_extent()
7519 		if (unlikely(last_ptr)) {  in find_free_extent()
7520 			spin_lock(&last_ptr->lock);  in find_free_extent()
7521 			last_ptr->fragmented = 1;  in find_free_extent()
7522 			spin_unlock(&last_ptr->lock);  in find_free_extent()
7690 		if (!use_cluster && last_ptr) {  in find_free_extent()
7691 			spin_lock(&last_ptr->lock);  in find_free_extent()
7692 			last_ptr->window_start = ins->objectid;  in find_free_extent()
7693 			spin_unlock(&last_ptr->lock);  in find_free_extent()