1890 	struct memcg_stock_pcp *stock;  in consume_stock()  local
1896 	stock = &get_cpu_var(memcg_stock);  in consume_stock()
1897 	if (memcg == stock->cached && stock->nr_pages >= nr_pages) {  in consume_stock()
1898 		stock->nr_pages -= nr_pages;  in consume_stock()
1908 static void drain_stock(struct memcg_stock_pcp *stock)  in drain_stock()  argument
1910 	struct mem_cgroup *old = stock->cached;  in drain_stock()
1912 	if (stock->nr_pages) {  in drain_stock()
1913 		page_counter_uncharge(&old->memory, stock->nr_pages);  in drain_stock()
1915 			page_counter_uncharge(&old->memsw, stock->nr_pages);  in drain_stock()
1916 		css_put_many(&old->css, stock->nr_pages);  in drain_stock()
1917 		stock->nr_pages = 0;  in drain_stock()
1919 	stock->cached = NULL;  in drain_stock()
1928 	struct memcg_stock_pcp *stock = this_cpu_ptr(&memcg_stock);  in drain_local_stock()  local
1929 	drain_stock(stock);  in drain_local_stock()
1930 	clear_bit(FLUSHING_CACHED_CHARGE, &stock->flags);  in drain_local_stock()
1939 	struct memcg_stock_pcp *stock = &get_cpu_var(memcg_stock);  in refill_stock()  local
1941 	if (stock->cached != memcg) { /* reset if necessary */  in refill_stock()
1942 		drain_stock(stock);  in refill_stock()
1943 		stock->cached = memcg;  in refill_stock()
1945 	stock->nr_pages += nr_pages;  in refill_stock()
1964 		struct memcg_stock_pcp *stock = &per_cpu(memcg_stock, cpu);  in drain_all_stock()  local
1967 		memcg = stock->cached;  in drain_all_stock()
1968 		if (!memcg || !stock->nr_pages)  in drain_all_stock()
1972 		if (!test_and_set_bit(FLUSHING_CACHED_CHARGE, &stock->flags)) {  in drain_all_stock()
1974 				drain_local_stock(&stock->work);  in drain_all_stock()
1976 				schedule_work_on(cpu, &stock->work);  in drain_all_stock()
1989 	struct memcg_stock_pcp *stock;  in memcg_cpu_hotplug_callback()  local
1997 	stock = &per_cpu(memcg_stock, cpu);  in memcg_cpu_hotplug_callback()
1998 	drain_stock(stock);  in memcg_cpu_hotplug_callback()