+/* for swap handling */
+extern int mem_cgroup_try_charge_swapin(struct mm_struct *mm,
+ struct page *page, gfp_t mask, struct mem_cgroup **ptr);
+extern void mem_cgroup_commit_charge_swapin(struct page *page,
+ struct mem_cgroup *ptr);
+extern void mem_cgroup_cancel_charge_swapin(struct mem_cgroup *ptr);
+
+extern int mem_cgroup_cache_charge(struct page *page, struct mm_struct *mm,
+ gfp_t gfp_mask);
+extern void mem_cgroup_add_lru_list(struct page *page, enum lru_list lru);
+extern void mem_cgroup_del_lru_list(struct page *page, enum lru_list lru);
+extern void mem_cgroup_rotate_lru_list(struct page *page, enum lru_list lru);
+extern void mem_cgroup_del_lru(struct page *page);
+extern void mem_cgroup_move_lists(struct page *page,
+ enum lru_list from, enum lru_list to);
+extern void mem_cgroup_uncharge_page(struct page *page);
+extern void mem_cgroup_uncharge_cache_page(struct page *page);
+extern int mem_cgroup_shmem_charge_fallback(struct page *page,
+ struct mm_struct *mm, gfp_t gfp_mask);
+