__memcg_kmem_charge_page
int __memcg_kmem_charge_page(struct page *page, gfp_t gfp, int order);
return __memcg_kmem_charge_page(page, gfp, order);
unlikely(__memcg_kmem_charge_page(page, gfp, order) != 0)) {
unlikely(__memcg_kmem_charge_page(page, alloc_gfp, order) != 0)) {
if (__memcg_kmem_charge_page(page, flags, order))