6837 static inline void uncharge_gather_clear(struct uncharge_gather *ug)  in uncharge_gather_clear()  argument
6839 	memset(ug, 0, sizeof(*ug));  in uncharge_gather_clear()
6842 static void uncharge_batch(const struct uncharge_gather *ug)  in uncharge_batch()  argument
6846 	if (!mem_cgroup_is_root(ug->memcg)) {  in uncharge_batch()
6847 		page_counter_uncharge(&ug->memcg->memory, ug->nr_pages);  in uncharge_batch()
6849 			page_counter_uncharge(&ug->memcg->memsw, ug->nr_pages);  in uncharge_batch()
6850 		if (!cgroup_subsys_on_dfl(memory_cgrp_subsys) && ug->nr_kmem)  in uncharge_batch()
6851 			page_counter_uncharge(&ug->memcg->kmem, ug->nr_kmem);  in uncharge_batch()
6852 		memcg_oom_recover(ug->memcg);  in uncharge_batch()
6856 	__count_memcg_events(ug->memcg, PGPGOUT, ug->pgpgout);  in uncharge_batch()
6857 	__this_cpu_add(ug->memcg->vmstats_percpu->nr_page_events, ug->nr_pages);  in uncharge_batch()
6858 	memcg_check_events(ug->memcg, ug->dummy_page);  in uncharge_batch()
6862 	css_put(&ug->memcg->css);  in uncharge_batch()
6865 static void uncharge_page(struct page *page, struct uncharge_gather *ug)  in uncharge_page()  argument
6880 	if (ug->memcg != page->mem_cgroup) {  in uncharge_page()
6881 		if (ug->memcg) {  in uncharge_page()
6882 			uncharge_batch(ug);  in uncharge_page()
6883 			uncharge_gather_clear(ug);  in uncharge_page()
6885 		ug->memcg = page->mem_cgroup;  in uncharge_page()
6888 		css_get(&ug->memcg->css);  in uncharge_page()
6892 	ug->nr_pages += nr_pages;  in uncharge_page()
6895 		ug->pgpgout++;  in uncharge_page()
6897 		ug->nr_kmem += nr_pages;  in uncharge_page()
6901 	ug->dummy_page = page;  in uncharge_page()
6903 	css_put(&ug->memcg->css);  in uncharge_page()
6908 	struct uncharge_gather ug;  in uncharge_list()  local
6911 	uncharge_gather_clear(&ug);  in uncharge_list()
6924 		uncharge_page(page, &ug);  in uncharge_list()
6927 	if (ug.memcg)  in uncharge_list()
6928 		uncharge_batch(&ug);  in uncharge_list()
6939 	struct uncharge_gather ug;  in mem_cgroup_uncharge()  local
6948 	uncharge_gather_clear(&ug);  in mem_cgroup_uncharge()
6949 	uncharge_page(page, &ug);  in mem_cgroup_uncharge()
6950 	uncharge_batch(&ug);  in mem_cgroup_uncharge()