1943 	struct memcg_stock_pcp *stock;  in consume_stock()  local
1952 	stock = this_cpu_ptr(&memcg_stock);  in consume_stock()
1953 	if (memcg == stock->cached && stock->nr_pages >= nr_pages) {  in consume_stock()
1954 		stock->nr_pages -= nr_pages;  in consume_stock()
1966 static void drain_stock(struct memcg_stock_pcp *stock)  in drain_stock()  argument
1968 	struct mem_cgroup *old = stock->cached;  in drain_stock()
1970 	if (stock->nr_pages) {  in drain_stock()
1971 		page_counter_uncharge(&old->memory, stock->nr_pages);  in drain_stock()
1973 			page_counter_uncharge(&old->memsw, stock->nr_pages);  in drain_stock()
1974 		css_put_many(&old->css, stock->nr_pages);  in drain_stock()
1975 		stock->nr_pages = 0;  in drain_stock()
1977 	stock->cached = NULL;  in drain_stock()
1982 	struct memcg_stock_pcp *stock;  in drain_local_stock()  local
1991 	stock = this_cpu_ptr(&memcg_stock);  in drain_local_stock()
1992 	drain_stock(stock);  in drain_local_stock()
1993 	clear_bit(FLUSHING_CACHED_CHARGE, &stock->flags);  in drain_local_stock()
2004 	struct memcg_stock_pcp *stock;  in refill_stock()  local
2009 	stock = this_cpu_ptr(&memcg_stock);  in refill_stock()
2010 	if (stock->cached != memcg) { /* reset if necessary */  in refill_stock()
2011 		drain_stock(stock);  in refill_stock()
2012 		stock->cached = memcg;  in refill_stock()
2014 	stock->nr_pages += nr_pages;  in refill_stock()
2016 	if (stock->nr_pages > MEMCG_CHARGE_BATCH)  in refill_stock()
2017 		drain_stock(stock);  in refill_stock()
2041 		struct memcg_stock_pcp *stock = &per_cpu(memcg_stock, cpu);  in drain_all_stock()  local
2044 		memcg = stock->cached;  in drain_all_stock()
2045 		if (!memcg || !stock->nr_pages || !css_tryget(&memcg->css))  in drain_all_stock()
2051 		if (!test_and_set_bit(FLUSHING_CACHED_CHARGE, &stock->flags)) {  in drain_all_stock()
2053 				drain_local_stock(&stock->work);  in drain_all_stock()
2055 				schedule_work_on(cpu, &stock->work);  in drain_all_stock()
2065 	struct memcg_stock_pcp *stock;  in memcg_hotplug_cpu_dead()  local
2068 	stock = &per_cpu(memcg_stock, cpu);  in memcg_hotplug_cpu_dead()
2069 	drain_stock(stock);  in memcg_hotplug_cpu_dead()