498 static void __mem_cgroup_insert_exceeded(struct mem_cgroup_per_zone *mz,  in __mem_cgroup_insert_exceeded()  argument
506 	if (mz->on_tree)  in __mem_cgroup_insert_exceeded()
509 	mz->usage_in_excess = new_usage_in_excess;  in __mem_cgroup_insert_exceeded()
510 	if (!mz->usage_in_excess)  in __mem_cgroup_insert_exceeded()
516 		if (mz->usage_in_excess < mz_node->usage_in_excess)  in __mem_cgroup_insert_exceeded()
522 		else if (mz->usage_in_excess >= mz_node->usage_in_excess)  in __mem_cgroup_insert_exceeded()
525 	rb_link_node(&mz->tree_node, parent, p);  in __mem_cgroup_insert_exceeded()
526 	rb_insert_color(&mz->tree_node, &mctz->rb_root);  in __mem_cgroup_insert_exceeded()
527 	mz->on_tree = true;  in __mem_cgroup_insert_exceeded()
530 static void __mem_cgroup_remove_exceeded(struct mem_cgroup_per_zone *mz,  in __mem_cgroup_remove_exceeded()  argument
533 	if (!mz->on_tree)  in __mem_cgroup_remove_exceeded()
535 	rb_erase(&mz->tree_node, &mctz->rb_root);  in __mem_cgroup_remove_exceeded()
536 	mz->on_tree = false;  in __mem_cgroup_remove_exceeded()
539 static void mem_cgroup_remove_exceeded(struct mem_cgroup_per_zone *mz,  in mem_cgroup_remove_exceeded()  argument
545 	__mem_cgroup_remove_exceeded(mz, mctz);  in mem_cgroup_remove_exceeded()
564 	struct mem_cgroup_per_zone *mz;  in mem_cgroup_update_tree()  local
573 		mz = mem_cgroup_page_zoneinfo(memcg, page);  in mem_cgroup_update_tree()
579 		if (excess || mz->on_tree) {  in mem_cgroup_update_tree()
584 			if (mz->on_tree)  in mem_cgroup_update_tree()
585 				__mem_cgroup_remove_exceeded(mz, mctz);  in mem_cgroup_update_tree()
590 			__mem_cgroup_insert_exceeded(mz, mctz, excess);  in mem_cgroup_update_tree()
599 	struct mem_cgroup_per_zone *mz;  in mem_cgroup_remove_from_trees()  local
604 			mz = &memcg->nodeinfo[nid]->zoneinfo[zid];  in mem_cgroup_remove_from_trees()
606 			mem_cgroup_remove_exceeded(mz, mctz);  in mem_cgroup_remove_from_trees()
615 	struct mem_cgroup_per_zone *mz;  in __mem_cgroup_largest_soft_limit_node()  local
618 	mz = NULL;  in __mem_cgroup_largest_soft_limit_node()
623 	mz = rb_entry(rightmost, struct mem_cgroup_per_zone, tree_node);  in __mem_cgroup_largest_soft_limit_node()
629 	__mem_cgroup_remove_exceeded(mz, mctz);  in __mem_cgroup_largest_soft_limit_node()
630 	if (!soft_limit_excess(mz->memcg) ||  in __mem_cgroup_largest_soft_limit_node()
631 	    !css_tryget_online(&mz->memcg->css))  in __mem_cgroup_largest_soft_limit_node()
634 	return mz;  in __mem_cgroup_largest_soft_limit_node()
640 	struct mem_cgroup_per_zone *mz;  in mem_cgroup_largest_soft_limit_node()  local
643 	mz = __mem_cgroup_largest_soft_limit_node(mctz);  in mem_cgroup_largest_soft_limit_node()
645 	return mz;  in mem_cgroup_largest_soft_limit_node()
738 		struct mem_cgroup_per_zone *mz;  in mem_cgroup_node_nr_lru_pages()  local
744 			mz = &memcg->nodeinfo[nid]->zoneinfo[zid];  in mem_cgroup_node_nr_lru_pages()
745 			nr += mz->lru_size[lru];  in mem_cgroup_node_nr_lru_pages()
899 		struct mem_cgroup_per_zone *mz;  in mem_cgroup_iter()  local
901 		mz = mem_cgroup_zone_zoneinfo(root, reclaim->zone);  in mem_cgroup_iter()
902 		iter = &mz->iter[reclaim->priority];  in mem_cgroup_iter()
1009 	struct mem_cgroup_per_zone *mz;  in invalidate_reclaim_iterators()  local
1016 				mz = &memcg->nodeinfo[nid]->zoneinfo[zid];  in invalidate_reclaim_iterators()
1018 					iter = &mz->iter[i];  in invalidate_reclaim_iterators()
1054 	struct mem_cgroup_per_zone *mz;  in mem_cgroup_zone_lruvec()  local
1062 	mz = mem_cgroup_zone_zoneinfo(memcg, zone);  in mem_cgroup_zone_lruvec()
1063 	lruvec = &mz->lruvec;  in mem_cgroup_zone_lruvec()
1086 	struct mem_cgroup_per_zone *mz;  in mem_cgroup_page_lruvec()  local
1103 	mz = mem_cgroup_page_zoneinfo(memcg, page);  in mem_cgroup_page_lruvec()
1104 	lruvec = &mz->lruvec;  in mem_cgroup_page_lruvec()
1128 	struct mem_cgroup_per_zone *mz;  in mem_cgroup_update_lru_size()  local
1134 	mz = container_of(lruvec, struct mem_cgroup_per_zone, lruvec);  in mem_cgroup_update_lru_size()
1135 	lru_size = mz->lru_size + lru;  in mem_cgroup_update_lru_size()
2641 	struct mem_cgroup_per_zone *mz, *next_mz = NULL;  in mem_cgroup_soft_limit_reclaim()  local
2659 			mz = next_mz;  in mem_cgroup_soft_limit_reclaim()
2661 			mz = mem_cgroup_largest_soft_limit_node(mctz);  in mem_cgroup_soft_limit_reclaim()
2662 		if (!mz)  in mem_cgroup_soft_limit_reclaim()
2666 		reclaimed = mem_cgroup_soft_reclaim(mz->memcg, zone,  in mem_cgroup_soft_limit_reclaim()
2671 		__mem_cgroup_remove_exceeded(mz, mctz);  in mem_cgroup_soft_limit_reclaim()
2681 		excess = soft_limit_excess(mz->memcg);  in mem_cgroup_soft_limit_reclaim()
2691 		__mem_cgroup_insert_exceeded(mz, mctz, excess);  in mem_cgroup_soft_limit_reclaim()
2693 		css_put(&mz->memcg->css);  in mem_cgroup_soft_limit_reclaim()
3223 		struct mem_cgroup_per_zone *mz;  in memcg_stat_show()  local
3230 				mz = &memcg->nodeinfo[nid]->zoneinfo[zid];  in memcg_stat_show()
3231 				rstat = &mz->lruvec.reclaim_stat;  in memcg_stat_show()
4130 	struct mem_cgroup_per_zone *mz;  in alloc_mem_cgroup_per_zone_info()  local
4147 		mz = &pn->zoneinfo[zone];  in alloc_mem_cgroup_per_zone_info()
4148 		lruvec_init(&mz->lruvec);  in alloc_mem_cgroup_per_zone_info()
4149 		mz->usage_in_excess = 0;  in alloc_mem_cgroup_per_zone_info()
4150 		mz->on_tree = false;  in alloc_mem_cgroup_per_zone_info()
4151 		mz->memcg = memcg;  in alloc_mem_cgroup_per_zone_info()