1 files changed, 22 insertions, 44 deletions

diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h
index bfe9533bb67e..e77197a62809 100644
--- a/include/linux/memcontrol.h
+++ b/include/linux/memcontrol.h
@@ -29,10 +29,7 @@ struct kmem_cache;
 
 /* Cgroup-specific page state, on top of universal node page state */
 enum memcg_stat_item {
-	MEMCG_CACHE = NR_VM_NODE_STAT_ITEMS,
-	MEMCG_RSS,
-	MEMCG_RSS_HUGE,
-	MEMCG_SWAP,
+	MEMCG_SWAP = NR_VM_NODE_STAT_ITEMS,
 	MEMCG_SOCK,
 	/* XXX: why are these zone and not node counters? */
 	MEMCG_KERNEL_STACK_KB,
@@ -358,16 +355,8 @@ static inline unsigned long mem_cgroup_protection(struct mem_cgroup *memcg,
 enum mem_cgroup_protection mem_cgroup_protected(struct mem_cgroup *root,
 						struct mem_cgroup *memcg);
 
-int mem_cgroup_try_charge(struct page *page, struct mm_struct *mm,
-			  gfp_t gfp_mask, struct mem_cgroup **memcgp,
-			  bool compound);
-int mem_cgroup_try_charge_delay(struct page *page, struct mm_struct *mm,
-			  gfp_t gfp_mask, struct mem_cgroup **memcgp,
-			  bool compound);
-void mem_cgroup_commit_charge(struct page *page, struct mem_cgroup *memcg,
-			      bool lrucare, bool compound);
-void mem_cgroup_cancel_charge(struct page *page, struct mem_cgroup *memcg,
-		bool compound);
+int mem_cgroup_charge(struct page *page, struct mm_struct *mm, gfp_t gfp_mask);
+
 void mem_cgroup_uncharge(struct page *page);
 void mem_cgroup_uncharge_list(struct list_head *page_list);
 
@@ -568,7 +557,7 @@ struct mem_cgroup *mem_cgroup_get_oom_group(struct task_struct *victim,
 void mem_cgroup_print_oom_group(struct mem_cgroup *memcg);
 
 #ifdef CONFIG_MEMCG_SWAP
-extern int do_swap_account;
+extern bool cgroup_memory_noswap;
 #endif
 
 struct mem_cgroup *lock_page_memcg(struct page *page);
@@ -708,16 +697,17 @@ static inline void mod_lruvec_state(struct lruvec *lruvec,
 static inline void __mod_lruvec_page_state(struct page *page,
 					   enum node_stat_item idx, int val)
 {
+	struct page *head = compound_head(page); /* rmap on tail pages */
 	pg_data_t *pgdat = page_pgdat(page);
 	struct lruvec *lruvec;
 
 	/* Untracked pages have no memcg, no lruvec. Update only the node */
-	if (!page->mem_cgroup) {
+	if (!head->mem_cgroup) {
 		__mod_node_page_state(pgdat, idx, val);
 		return;
 	}
 
-	lruvec = mem_cgroup_lruvec(page->mem_cgroup, pgdat);
+	lruvec = mem_cgroup_lruvec(head->mem_cgroup, pgdat);
 	__mod_lruvec_state(lruvec, idx, val);
 }
 
@@ -847,37 +837,12 @@ static inline enum mem_cgroup_protection mem_cgroup_protected(
 	return MEMCG_PROT_NONE;
 }
 
-static inline int mem_cgroup_try_charge(struct page *page, struct mm_struct *mm,
-					gfp_t gfp_mask,
-					struct mem_cgroup **memcgp,
-					bool compound)
-{
-	*memcgp = NULL;
-	return 0;
-}
-
-static inline int mem_cgroup_try_charge_delay(struct page *page,
-					      struct mm_struct *mm,
-					      gfp_t gfp_mask,
-					      struct mem_cgroup **memcgp,
-					      bool compound)
+static inline int mem_cgroup_charge(struct page *page, struct mm_struct *mm,
+				    gfp_t gfp_mask)
 {
-	*memcgp = NULL;
 	return 0;
 }
 
-static inline void mem_cgroup_commit_charge(struct page *page,
-					    struct mem_cgroup *memcg,
-					    bool lrucare, bool compound)
-{
-}
-
-static inline void mem_cgroup_cancel_charge(struct page *page,
-					    struct mem_cgroup *memcg,
-					    bool compound)
-{
-}
-
 static inline void mem_cgroup_uncharge(struct page *page)
 {
 }
@@ -1277,6 +1242,19 @@ static inline void dec_lruvec_page_state(struct page *page,
 	mod_lruvec_page_state(page, idx, -1);
 }
 
+static inline struct lruvec *parent_lruvec(struct lruvec *lruvec)
+{
+	struct mem_cgroup *memcg;
+
+	memcg = lruvec_memcg(lruvec);
+	if (!memcg)
+		return NULL;
+	memcg = parent_mem_cgroup(memcg);
+	if (!memcg)
+		return NULL;
+	return mem_cgroup_lruvec(memcg, lruvec_pgdat(lruvec));
+}
+
 #ifdef CONFIG_CGROUP_WRITEBACK
 
 struct wb_domain *mem_cgroup_wb_domain(struct bdi_writeback *wb);