1 files changed, 58 insertions, 65 deletions

diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h
index b80de520670..83e7ba90d6e 100644
--- a/include/linux/memcontrol.h
+++ b/include/linux/memcontrol.h
@@ -63,12 +63,7 @@ extern int mem_cgroup_cache_charge(struct page *page, struct mm_struct *mm,
 					gfp_t gfp_mask);
 
 struct lruvec *mem_cgroup_zone_lruvec(struct zone *, struct mem_cgroup *);
-struct lruvec *mem_cgroup_lru_add_list(struct zone *, struct page *,
-				       enum lru_list);
-void mem_cgroup_lru_del_list(struct page *, enum lru_list);
-void mem_cgroup_lru_del(struct page *);
-struct lruvec *mem_cgroup_lru_move_lists(struct zone *, struct page *,
-					 enum lru_list, enum lru_list);
+struct lruvec *mem_cgroup_page_lruvec(struct page *, struct zone *);
 
 /* For coalescing uncharge for reducing memcg' overhead*/
 extern void mem_cgroup_uncharge_start(void);
@@ -77,7 +72,10 @@ extern void mem_cgroup_uncharge_end(void);
 extern void mem_cgroup_uncharge_page(struct page *page);
 extern void mem_cgroup_uncharge_cache_page(struct page *page);
 
-extern void mem_cgroup_out_of_memory(struct mem_cgroup *memcg, gfp_t gfp_mask);
+extern void mem_cgroup_out_of_memory(struct mem_cgroup *memcg, gfp_t gfp_mask,
+				     int order);
+bool __mem_cgroup_same_or_subtree(const struct mem_cgroup *root_memcg,
+				  struct mem_cgroup *memcg);
 int task_in_mem_cgroup(struct task_struct *task, const struct mem_cgroup *memcg);
 
 extern struct mem_cgroup *try_get_mem_cgroup_from_page(struct page *page);
@@ -91,10 +89,13 @@ static inline
 int mm_match_cgroup(const struct mm_struct *mm, const struct mem_cgroup *cgroup)
 {
 	struct mem_cgroup *memcg;
+	int match;
+
 	rcu_read_lock();
 	memcg = mem_cgroup_from_task(rcu_dereference((mm)->owner));
+	match = __mem_cgroup_same_or_subtree(cgroup, memcg);
 	rcu_read_unlock();
-	return cgroup == memcg;
+	return match;
 }
 
 extern struct cgroup_subsys_state *mem_cgroup_css(struct mem_cgroup *memcg);
@@ -113,17 +114,11 @@ void mem_cgroup_iter_break(struct mem_cgroup *, struct mem_cgroup *);
 /*
  * For memory reclaim.
  */
-int mem_cgroup_inactive_anon_is_low(struct mem_cgroup *memcg,
-				    struct zone *zone);
-int mem_cgroup_inactive_file_is_low(struct mem_cgroup *memcg,
-				    struct zone *zone);
+int mem_cgroup_inactive_anon_is_low(struct lruvec *lruvec);
+int mem_cgroup_inactive_file_is_low(struct lruvec *lruvec);
 int mem_cgroup_select_victim_node(struct mem_cgroup *memcg);
-unsigned long mem_cgroup_zone_nr_lru_pages(struct mem_cgroup *memcg,
-					int nid, int zid, unsigned int lrumask);
-struct zone_reclaim_stat *mem_cgroup_get_reclaim_stat(struct mem_cgroup *memcg,
-						      struct zone *zone);
-struct zone_reclaim_stat*
-mem_cgroup_get_reclaim_stat_from_page(struct page *page);
+unsigned long mem_cgroup_get_lru_size(struct lruvec *lruvec, enum lru_list);
+void mem_cgroup_update_lru_size(struct lruvec *, enum lru_list, int);
 extern void mem_cgroup_print_oom_info(struct mem_cgroup *memcg,
 					struct task_struct *p);
 extern void mem_cgroup_replace_page_cache(struct page *oldpage,
@@ -140,6 +135,34 @@ static inline bool mem_cgroup_disabled(void)
 	return false;
 }
 
+void __mem_cgroup_begin_update_page_stat(struct page *page, bool *locked,
+					 unsigned long *flags);
+
+extern atomic_t memcg_moving;
+
+static inline void mem_cgroup_begin_update_page_stat(struct page *page,
+					bool *locked, unsigned long *flags)
+{
+	if (mem_cgroup_disabled())
+		return;
+	rcu_read_lock();
+	*locked = false;
+	if (atomic_read(&memcg_moving))
+		__mem_cgroup_begin_update_page_stat(page, locked, flags);
+}
+
+void __mem_cgroup_end_update_page_stat(struct page *page,
+				unsigned long *flags);
+static inline void mem_cgroup_end_update_page_stat(struct page *page,
+					bool *locked, unsigned long *flags)
+{
+	if (mem_cgroup_disabled())
+		return;
+	if (*locked)
+		__mem_cgroup_end_update_page_stat(page, flags);
+	rcu_read_unlock();
+}
+
 void mem_cgroup_update_page_stat(struct page *page,
 				 enum mem_cgroup_page_stat_item idx,
 				 int val);
@@ -222,25 +245,8 @@ static inline struct lruvec *mem_cgroup_zone_lruvec(struct zone *zone,
 	return &zone->lruvec;
 }
 
-static inline struct lruvec *mem_cgroup_lru_add_list(struct zone *zone,
-						     struct page *page,
-						     enum lru_list lru)
-{
-	return &zone->lruvec;
-}
-
-static inline void mem_cgroup_lru_del_list(struct page *page, enum lru_list lru)
-{
-}
-
-static inline void mem_cgroup_lru_del(struct page *page)
-{
-}
-
-static inline struct lruvec *mem_cgroup_lru_move_lists(struct zone *zone,
-						       struct page *page,
-						       enum lru_list from,
-						       enum lru_list to)
+static inline struct lruvec *mem_cgroup_page_lruvec(struct page *page,
+						    struct zone *zone)
 {
 	return &zone->lruvec;
 }
@@ -298,60 +304,47 @@ static inline void mem_cgroup_iter_break(struct mem_cgroup *root,
 {
 }
 
-static inline int mem_cgroup_get_reclaim_priority(struct mem_cgroup *memcg)
-{
-	return 0;
-}
-
-static inline void mem_cgroup_note_reclaim_priority(struct mem_cgroup *memcg,
-						int priority)
-{
-}
-
-static inline void mem_cgroup_record_reclaim_priority(struct mem_cgroup *memcg,
-						int priority)
-{
-}
-
 static inline bool mem_cgroup_disabled(void)
 {
 	return true;
 }
 
 static inline int
-mem_cgroup_inactive_anon_is_low(struct mem_cgroup *memcg, struct zone *zone)
+mem_cgroup_inactive_anon_is_low(struct lruvec *lruvec)
 {
 	return 1;
 }
 
 static inline int
-mem_cgroup_inactive_file_is_low(struct mem_cgroup *memcg, struct zone *zone)
+mem_cgroup_inactive_file_is_low(struct lruvec *lruvec)
 {
 	return 1;
 }
 
 static inline unsigned long
-mem_cgroup_zone_nr_lru_pages(struct mem_cgroup *memcg, int nid, int zid,
-				unsigned int lru_mask)
+mem_cgroup_get_lru_size(struct lruvec *lruvec, enum lru_list lru)
 {
 	return 0;
 }
 
+static inline void
+mem_cgroup_update_lru_size(struct lruvec *lruvec, enum lru_list lru,
+			      int increment)
+{
+}
 
-static inline struct zone_reclaim_stat*
-mem_cgroup_get_reclaim_stat(struct mem_cgroup *memcg, struct zone *zone)
+static inline void
+mem_cgroup_print_oom_info(struct mem_cgroup *memcg, struct task_struct *p)
 {
-	return NULL;
 }
 
-static inline struct zone_reclaim_stat*
-mem_cgroup_get_reclaim_stat_from_page(struct page *page)
+static inline void mem_cgroup_begin_update_page_stat(struct page *page,
+					bool *locked, unsigned long *flags)
 {
-	return NULL;
 }
 
-static inline void
-mem_cgroup_print_oom_info(struct mem_cgroup *memcg, struct task_struct *p)
+static inline void mem_cgroup_end_update_page_stat(struct page *page,
+					bool *locked, unsigned long *flags)
 {
 }
 
@@ -391,7 +384,7 @@ static inline void mem_cgroup_replace_page_cache(struct page *oldpage,
 				struct page *newpage)
 {
 }
-#endif /* CONFIG_CGROUP_MEM_CONT */
+#endif /* CONFIG_CGROUP_MEM_RES_CTLR */
 
 #if !defined(CONFIG_CGROUP_MEM_RES_CTLR) || !defined(CONFIG_DEBUG_VM)
 static inline bool