6943 static inline void uncharge_gather_clear(struct uncharge_gather *ug)  in uncharge_gather_clear()  argument
6945 	memset(ug, 0, sizeof(*ug));  in uncharge_gather_clear()
6948 static void uncharge_batch(const struct uncharge_gather *ug)  in uncharge_batch()  argument
6952 	if (!mem_cgroup_is_root(ug->memcg)) {  in uncharge_batch()
6953 		page_counter_uncharge(&ug->memcg->memory, ug->nr_pages);  in uncharge_batch()
6955 			page_counter_uncharge(&ug->memcg->memsw, ug->nr_pages);  in uncharge_batch()
6956 		if (!cgroup_subsys_on_dfl(memory_cgrp_subsys) && ug->nr_kmem)  in uncharge_batch()
6957 			page_counter_uncharge(&ug->memcg->kmem, ug->nr_kmem);  in uncharge_batch()
6958 		memcg_oom_recover(ug->memcg);  in uncharge_batch()
6962 	__count_memcg_events(ug->memcg, PGPGOUT, ug->pgpgout);  in uncharge_batch()
6963 	__this_cpu_add(ug->memcg->vmstats_percpu->nr_page_events, ug->nr_pages);  in uncharge_batch()
6964 	memcg_check_events(ug->memcg, ug->dummy_page);  in uncharge_batch()
6968 	css_put(&ug->memcg->css);  in uncharge_batch()
6971 static void uncharge_page(struct page *page, struct uncharge_gather *ug)  in uncharge_page()  argument
6986 	if (ug->memcg != page->mem_cgroup) {  in uncharge_page()
6987 		if (ug->memcg) {  in uncharge_page()
6988 			uncharge_batch(ug);  in uncharge_page()
6989 			uncharge_gather_clear(ug);  in uncharge_page()
6991 		ug->memcg = page->mem_cgroup;  in uncharge_page()
6994 		css_get(&ug->memcg->css);  in uncharge_page()
6998 	ug->nr_pages += nr_pages;  in uncharge_page()
7001 		ug->pgpgout++;  in uncharge_page()
7003 		ug->nr_kmem += nr_pages;  in uncharge_page()
7007 	ug->dummy_page = page;  in uncharge_page()
7009 	css_put(&ug->memcg->css);  in uncharge_page()
7014 	struct uncharge_gather ug;  in uncharge_list()  local
7017 	uncharge_gather_clear(&ug);  in uncharge_list()
7030 		uncharge_page(page, &ug);  in uncharge_list()
7033 	if (ug.memcg)  in uncharge_list()
7034 		uncharge_batch(&ug);  in uncharge_list()
7045 	struct uncharge_gather ug;  in mem_cgroup_uncharge()  local
7054 	uncharge_gather_clear(&ug);  in mem_cgroup_uncharge()
7055 	uncharge_page(page, &ug);  in mem_cgroup_uncharge()
7056 	uncharge_batch(&ug);  in mem_cgroup_uncharge()