3479 		struct btrfs_free_cluster *last_ptr,  in find_free_extent_clustered()  argument
3488 	cluster_bg = btrfs_lock_cluster(bg, last_ptr, ffe_ctl->delalloc);  in find_free_extent_clustered()
3495 	offset = btrfs_alloc_from_cluster(cluster_bg, last_ptr,  in find_free_extent_clustered()
3500 		spin_unlock(&last_ptr->refill_lock);  in find_free_extent_clustered()
3507 	WARN_ON(last_ptr->block_group != cluster_bg);  in find_free_extent_clustered()
3522 		spin_unlock(&last_ptr->refill_lock);  in find_free_extent_clustered()
3528 	btrfs_return_cluster_to_free_space(NULL, last_ptr);  in find_free_extent_clustered()
3535 		spin_unlock(&last_ptr->refill_lock);  in find_free_extent_clustered()
3542 	ret = btrfs_find_space_cluster(bg, last_ptr, ffe_ctl->search_start,  in find_free_extent_clustered()
3546 		offset = btrfs_alloc_from_cluster(bg, last_ptr,  in find_free_extent_clustered()
3551 			spin_unlock(&last_ptr->refill_lock);  in find_free_extent_clustered()
3560 		spin_unlock(&last_ptr->refill_lock);  in find_free_extent_clustered()
3572 	btrfs_return_cluster_to_free_space(NULL, last_ptr);  in find_free_extent_clustered()
3573 	spin_unlock(&last_ptr->refill_lock);  in find_free_extent_clustered()
3583 		struct btrfs_free_cluster *last_ptr,  in find_free_extent_unclustered()  argument
3593 	if (unlikely(last_ptr)) {  in find_free_extent_unclustered()
3594 		spin_lock(&last_ptr->lock);  in find_free_extent_unclustered()
3595 		last_ptr->fragmented = 1;  in find_free_extent_unclustered()
3596 		spin_unlock(&last_ptr->lock);  in find_free_extent_unclustered()
3647 					struct btrfs_free_cluster *last_ptr,  in find_free_extent_update_loop()  argument
3667 		if (!use_cluster && last_ptr) {  in find_free_extent_update_loop()
3668 			spin_lock(&last_ptr->lock);  in find_free_extent_update_loop()
3669 			last_ptr->window_start = ins->objectid;  in find_free_extent_update_loop()
3670 			spin_unlock(&last_ptr->lock);  in find_free_extent_update_loop()
3783 	struct btrfs_free_cluster *last_ptr = NULL;  in find_free_extent()  local
3840 	last_ptr = fetch_cluster_info(fs_info, space_info,  in find_free_extent()
3842 	if (last_ptr) {  in find_free_extent()
3843 		spin_lock(&last_ptr->lock);  in find_free_extent()
3844 		if (last_ptr->block_group)  in find_free_extent()
3845 			hint_byte = last_ptr->window_start;  in find_free_extent()
3846 		if (last_ptr->fragmented) {  in find_free_extent()
3852 			hint_byte = last_ptr->window_start;  in find_free_extent()
3855 		spin_unlock(&last_ptr->lock);  in find_free_extent()
3953 		if (last_ptr && use_cluster) {  in find_free_extent()
3956 			ret = find_free_extent_clustered(block_group, last_ptr,  in find_free_extent()
3974 		ret = find_free_extent_unclustered(block_group, last_ptr,  in find_free_extent()
4024 	ret = find_free_extent_update_loop(fs_info, last_ptr, ins, &ffe_ctl,  in find_free_extent()