page_counter_uncharge
void page_counter_uncharge(struct page_counter *counter, unsigned long nr_pages);
page_counter_uncharge(&pool->cnt, size);
page_counter_uncharge(__hugetlb_cgroup_counter_from_cgroup(h_cg, idx,
page_counter_uncharge(__hugetlb_cgroup_counter_from_cgroup(h_cg, idx,
page_counter_uncharge(resv->reservation_counter,
page_counter_uncharge(rg->reservation_counter,
page_counter_uncharge(&memcg->kmem, -nr_pages);
page_counter_uncharge(&memcg->memory, nr_entries);
page_counter_uncharge(&memcg->memsw, nr_entries);
page_counter_uncharge(&memcg->tcpmem, nr_pages);
page_counter_uncharge(&memcg->memory, nr_pages);
page_counter_uncharge(&memcg->memsw, nr_pages);
page_counter_uncharge(&memcg->memsw, batch);
page_counter_uncharge(&memcg->memsw, nr_pages);
page_counter_uncharge(&memcg->swap, nr_pages);