fs/btrfs/extent-tree.c

3655 	struct btrfs_free_cluster *last_ptr = ffe_ctl->last_ptr;
3660 	cluster_bg = btrfs_lock_cluster(bg, last_ptr, ffe_ctl->delalloc);
3667 	offset = btrfs_alloc_from_cluster(cluster_bg, last_ptr,
3672 		spin_unlock(&last_ptr->refill_lock);
3678 	WARN_ON(last_ptr->block_group != cluster_bg);
3693 		spin_unlock(&last_ptr->refill_lock);
3699 	btrfs_return_cluster_to_free_space(NULL, last_ptr);
3706 		spin_unlock(&last_ptr->refill_lock);
3713 	ret = btrfs_find_space_cluster(bg, last_ptr, ffe_ctl->search_start,
3717 		offset = btrfs_alloc_from_cluster(bg, last_ptr,
3722 			spin_unlock(&last_ptr->refill_lock);
3733 	btrfs_return_cluster_to_free_space(NULL, last_ptr);
3734 	spin_unlock(&last_ptr->refill_lock);
3745 	struct btrfs_free_cluster *last_ptr = ffe_ctl->last_ptr;
3753 	if (unlikely(last_ptr)) {
3754 		spin_lock(&last_ptr->lock);
3755 		last_ptr->fragmented = 1;
3756 		spin_unlock(&last_ptr->lock);
3791 	if (ffe_ctl->last_ptr && ffe_ctl->use_cluster) {
4031 	struct btrfs_free_cluster *last_ptr = ffe_ctl->last_ptr;
4033 	if (!ffe_ctl->use_cluster && last_ptr) {
4034 		spin_lock(&last_ptr->lock);
4035 		last_ptr->window_start = ins->objectid;
4036 		spin_unlock(&last_ptr->lock);
4263 	ffe_ctl->last_ptr = fetch_cluster_info(fs_info, space_info,
4265 	if (ffe_ctl->last_ptr) {
4266 		struct btrfs_free_cluster *last_ptr = ffe_ctl->last_ptr;
4268 		spin_lock(&last_ptr->lock);
4269 		if (last_ptr->block_group)
4270 			ffe_ctl->hint_byte = last_ptr->window_start;
4271 		if (last_ptr->fragmented) {
4277 			ffe_ctl->hint_byte = last_ptr->window_start;
4280 		spin_unlock(&last_ptr->lock);
4379 	ffe_ctl->last_ptr = NULL;