7024 	struct btrfs_free_cluster *last_ptr = NULL;  in find_free_extent()  local
7077 	last_ptr = fetch_cluster_info(orig_root, space_info, &empty_cluster);  in find_free_extent()
7078 	if (last_ptr) {  in find_free_extent()
7079 		spin_lock(&last_ptr->lock);  in find_free_extent()
7080 		if (last_ptr->block_group)  in find_free_extent()
7081 			hint_byte = last_ptr->window_start;  in find_free_extent()
7082 		if (last_ptr->fragmented) {  in find_free_extent()
7088 			hint_byte = last_ptr->window_start;  in find_free_extent()
7091 		spin_unlock(&last_ptr->lock);  in find_free_extent()
7180 		if (last_ptr && use_cluster) {  in find_free_extent()
7188 							      last_ptr,  in find_free_extent()
7199 						last_ptr,  in find_free_extent()
7205 				spin_unlock(&last_ptr->refill_lock);  in find_free_extent()
7217 			WARN_ON(last_ptr->block_group != used_block_group);  in find_free_extent()
7236 				spin_unlock(&last_ptr->refill_lock);  in find_free_extent()
7246 			btrfs_return_cluster_to_free_space(NULL, last_ptr);  in find_free_extent()
7253 				spin_unlock(&last_ptr->refill_lock);  in find_free_extent()
7263 						       last_ptr, search_start,  in find_free_extent()
7272 							last_ptr,  in find_free_extent()
7278 					spin_unlock(&last_ptr->refill_lock);  in find_free_extent()
7286 				spin_unlock(&last_ptr->refill_lock);  in find_free_extent()
7300 			btrfs_return_cluster_to_free_space(NULL, last_ptr);  in find_free_extent()
7301 			spin_unlock(&last_ptr->refill_lock);  in find_free_extent()
7311 		if (unlikely(last_ptr)) {  in find_free_extent()
7312 			spin_lock(&last_ptr->lock);  in find_free_extent()
7313 			last_ptr->fragmented = 1;  in find_free_extent()
7314 			spin_unlock(&last_ptr->lock);  in find_free_extent()
7481 		if (!use_cluster && last_ptr) {  in find_free_extent()
7482 			spin_lock(&last_ptr->lock);  in find_free_extent()
7483 			last_ptr->window_start = ins->objectid;  in find_free_extent()
7484 			spin_unlock(&last_ptr->lock);  in find_free_extent()