74 	struct throtl_service_queue *parent_sq;	/* the parent service_queue */  member
251 	if (sq && sq->parent_sq)  in sq_to_tg()
538 	sq->parent_sq = &td->service_queue;  in throtl_pd_init()
540 		sq->parent_sq = &blkg_to_tg(blkg->parent)->service_queue;  in throtl_pd_init()
551 	struct throtl_grp *parent_tg = sq_to_tg(tg->service_queue.parent_sq);  in tg_update_has_rules()
618 throtl_rb_first(struct throtl_service_queue *parent_sq)  in throtl_rb_first()  argument
622 	if (!parent_sq->nr_pending)  in throtl_rb_first()
625 	n = rb_first_cached(&parent_sq->pending_tree);  in throtl_rb_first()
633 			    struct throtl_service_queue *parent_sq)  in throtl_rb_erase()  argument
635 	rb_erase_cached(n, &parent_sq->pending_tree);  in throtl_rb_erase()
637 	--parent_sq->nr_pending;  in throtl_rb_erase()
640 static void update_min_dispatch_time(struct throtl_service_queue *parent_sq)  in update_min_dispatch_time()  argument
644 	tg = throtl_rb_first(parent_sq);  in update_min_dispatch_time()
648 	parent_sq->first_pending_disptime = tg->disptime;  in update_min_dispatch_time()
653 	struct throtl_service_queue *parent_sq = tg->service_queue.parent_sq;  in tg_service_queue_add()  local
654 	struct rb_node **node = &parent_sq->pending_tree.rb_root.rb_node;  in tg_service_queue_add()
673 	rb_insert_color_cached(&tg->rb_node, &parent_sq->pending_tree,  in tg_service_queue_add()
681 	tg->service_queue.parent_sq->nr_pending++;  in __throtl_enqueue_tg()
692 	throtl_rb_erase(&tg->rb_node, tg->service_queue.parent_sq);  in __throtl_dequeue_tg()
1117 	struct throtl_service_queue *parent_sq = sq->parent_sq;  in tg_dispatch_one_bio()  local
1118 	struct throtl_grp *parent_tg = sq_to_tg(parent_sq);  in tg_dispatch_one_bio()
1145 				     &parent_sq->queued[rw]);  in tg_dispatch_one_bio()
1189 static int throtl_select_dispatch(struct throtl_service_queue *parent_sq)  in throtl_select_dispatch()  argument
1194 		struct throtl_grp *tg = throtl_rb_first(parent_sq);  in throtl_select_dispatch()
1241 	struct throtl_service_queue *parent_sq;  in throtl_pending_timer_fn()  local
1250 	parent_sq = sq->parent_sq;  in throtl_pending_timer_fn()
1276 	if (parent_sq) {  in throtl_pending_timer_fn()
1280 			if (!throtl_schedule_next_dispatch(parent_sq, false)) {  in throtl_pending_timer_fn()
1282 				sq = parent_sq;  in throtl_pending_timer_fn()
1418 		throtl_schedule_next_dispatch(sq->parent_sq, true);  in tg_conf_updated()
1753 	struct throtl_service_queue *parent_sq;  in tg_last_low_overflow_time()  local
1758 		parent_sq = parent->service_queue.parent_sq;  in tg_last_low_overflow_time()
1759 		parent = sq_to_tg(parent_sq);  in tg_last_low_overflow_time()
1836 		tg = sq_to_tg(tg->service_queue.parent_sq);  in throtl_hierarchy_can_upgrade()
1953 		tg = sq_to_tg(tg->service_queue.parent_sq);  in throtl_hierarchy_can_downgrade()
2183 		sq = sq->parent_sq;  in blk_throtl_bio()
2211 		throtl_schedule_next_dispatch(tg->service_queue.parent_sq, true);  in blk_throtl_bio()
2313 static void tg_drain_bios(struct throtl_service_queue *parent_sq)  in tg_drain_bios()  argument
2317 	while ((tg = throtl_rb_first(parent_sq))) {  in tg_drain_bios()