8 files changed, 171 insertions, 170 deletions

diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h
index fdf3967e1397..a6ac0d491fe6 100644
--- a/include/linux/memcontrol.h
+++ b/include/linux/memcontrol.h
@@ -69,10 +69,8 @@ extern void mem_cgroup_note_reclaim_priority(struct mem_cgroup *mem,
 extern void mem_cgroup_record_reclaim_priority(struct mem_cgroup *mem,
 							int priority);
 
-extern long mem_cgroup_calc_reclaim_active(struct mem_cgroup *mem,
-				struct zone *zone, int priority);
-extern long mem_cgroup_calc_reclaim_inactive(struct mem_cgroup *mem,
-				struct zone *zone, int priority);
+extern long mem_cgroup_calc_reclaim(struct mem_cgroup *mem, struct zone *zone,
+					int priority, enum lru_list lru);
 
 #else /* CONFIG_CGROUP_MEM_RES_CTLR */
 static inline void page_reset_bad_cgroup(struct page *page)
@@ -159,14 +157,9 @@ static inline void mem_cgroup_record_reclaim_priority(struct mem_cgroup *mem,
 {
 }
 
-static inline long mem_cgroup_calc_reclaim_active(struct mem_cgroup *mem,
-					struct zone *zone, int priority)
-{
-	return 0;
-}
-
-static inline long mem_cgroup_calc_reclaim_inactive(struct mem_cgroup *mem,
-					struct zone *zone, int priority)
+static inline long mem_cgroup_calc_reclaim(struct mem_cgroup *mem,
+					struct zone *zone, int priority,
+					enum lru_list lru)
 {
 	return 0;
 }
diff --git a/include/linux/mm_inline.h b/include/linux/mm_inline.h
index 895bc4e93039..2704729777ef 100644
--- a/include/linux/mm_inline.h
+++ b/include/linux/mm_inline.h
@@ -1,40 +1,67 @@
 static inline void
+add_page_to_lru_list(struct zone *zone, struct page *page, enum lru_list l)
+{
+	list_add(&page->lru, &zone->lru[l].list);
+	__inc_zone_state(zone, NR_LRU_BASE + l);
+}
+
+static inline void
+del_page_from_lru_list(struct zone *zone, struct page *page, enum lru_list l)
+{
+	list_del(&page->lru);
+	__dec_zone_state(zone, NR_LRU_BASE + l);
+}
+
+static inline void
 add_page_to_active_list(struct zone *zone, struct page *page)
 {
-	list_add(&page->lru, &zone->active_list);
-	__inc_zone_state(zone, NR_ACTIVE);
+	add_page_to_lru_list(zone, page, LRU_ACTIVE);
 }
 
 static inline void
 add_page_to_inactive_list(struct zone *zone, struct page *page)
 {
-	list_add(&page->lru, &zone->inactive_list);
-	__inc_zone_state(zone, NR_INACTIVE);
+	add_page_to_lru_list(zone, page, LRU_INACTIVE);
 }
 
 static inline void
 del_page_from_active_list(struct zone *zone, struct page *page)
 {
-	list_del(&page->lru);
-	__dec_zone_state(zone, NR_ACTIVE);
+	del_page_from_lru_list(zone, page, LRU_ACTIVE);
 }
 
 static inline void
 del_page_from_inactive_list(struct zone *zone, struct page *page)
 {
-	list_del(&page->lru);
-	__dec_zone_state(zone, NR_INACTIVE);
+	del_page_from_lru_list(zone, page, LRU_INACTIVE);
 }
 
 static inline void
 del_page_from_lru(struct zone *zone, struct page *page)
 {
+	enum lru_list l = LRU_INACTIVE;
+
 	list_del(&page->lru);
 	if (PageActive(page)) {
 		__ClearPageActive(page);
-		__dec_zone_state(zone, NR_ACTIVE);
-	} else {
-		__dec_zone_state(zone, NR_INACTIVE);
+		l = LRU_ACTIVE;
 	}
+	__dec_zone_state(zone, NR_LRU_BASE + l);
 }
 
+/**
+ * page_lru - which LRU list should a page be on?
+ * @page: the page to test
+ *
+ * Returns the LRU list a page should be on, as an index
+ * into the array of LRU lists.
+ */
+static inline enum lru_list page_lru(struct page *page)
+{
+	enum lru_list lru = LRU_BASE;
+
+	if (PageActive(page))
+		lru += LRU_ACTIVE;
+
+	return lru;
+}
diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h
index 428328a05fa1..156e18f3919b 100644
--- a/include/linux/mmzone.h
+++ b/include/linux/mmzone.h
@@ -81,8 +81,9 @@ struct zone_padding {
 enum zone_stat_item {
 	/* First 128 byte cacheline (assuming 64 bit words) */
 	NR_FREE_PAGES,
-	NR_INACTIVE,
-	NR_ACTIVE,
+	NR_LRU_BASE,
+	NR_INACTIVE = NR_LRU_BASE, /* must match order of LRU_[IN]ACTIVE */
+	NR_ACTIVE,	/*  "     "     "   "       "         */
 	NR_ANON_PAGES,	/* Mapped anonymous pages */
 	NR_FILE_MAPPED,	/* pagecache pages mapped into pagetables.
 			   only modified from process context */
@@ -107,6 +108,19 @@ enum zone_stat_item {
 #endif
 	NR_VM_ZONE_STAT_ITEMS };
 
+enum lru_list {
+	LRU_BASE,
+	LRU_INACTIVE=LRU_BASE,	/* must match order of NR_[IN]ACTIVE */
+	LRU_ACTIVE,		/*  "     "     "   "       "        */
+	NR_LRU_LISTS };
+
+#define for_each_lru(l) for (l = 0; l < NR_LRU_LISTS; l++)
+
+static inline int is_active_lru(enum lru_list l)
+{
+	return (l == LRU_ACTIVE);
+}
+
 struct per_cpu_pages {
 	int count;		/* number of pages in the list */
 	int high;		/* high watermark, emptying needed */
@@ -251,10 +265,10 @@ struct zone {
 
 	/* Fields commonly accessed by the page reclaim scanner */
 	spinlock_t		lru_lock;	
-	struct list_head	active_list;
-	struct list_head	inactive_list;
-	unsigned long		nr_scan_active;
-	unsigned long		nr_scan_inactive;
+	struct {
+		struct list_head list;
+		unsigned long nr_scan;
+	} lru[NR_LRU_LISTS];
 	unsigned long		pages_scanned;	   /* since last reclaim */
 	unsigned long		flags;		   /* zone flags, see below */
 
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 36896f3eb7f5..c0cbd7790c51 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -32,6 +32,7 @@
 #include <linux/fs.h>
 #include <linux/seq_file.h>
 #include <linux/vmalloc.h>
+#include <linux/mm_inline.h>
 
 #include <asm/uaccess.h>
 
@@ -85,22 +86,13 @@ static s64 mem_cgroup_read_stat(struct mem_cgroup_stat *stat,
 /*
  * per-zone information in memory controller.
  */
-
-enum mem_cgroup_zstat_index {
-	MEM_CGROUP_ZSTAT_ACTIVE,
-	MEM_CGROUP_ZSTAT_INACTIVE,
-
-	NR_MEM_CGROUP_ZSTAT,
-};
-
 struct mem_cgroup_per_zone {
 	/*
 	 * spin_lock to protect the per cgroup LRU
 	 */
 	spinlock_t		lru_lock;
-	struct list_head	active_list;
-	struct list_head	inactive_list;
-	unsigned long count[NR_MEM_CGROUP_ZSTAT];
+	struct list_head	lists[NR_LRU_LISTS];
+	unsigned long		count[NR_LRU_LISTS];
 };
 /* Macro for accessing counter */
 #define MEM_CGROUP_ZSTAT(mz, idx)	((mz)->count[(idx)])
@@ -227,7 +219,7 @@ page_cgroup_zoneinfo(struct page_cgroup *pc)
 }
 
 static unsigned long mem_cgroup_get_all_zonestat(struct mem_cgroup *mem,
-					enum mem_cgroup_zstat_index idx)
+					enum lru_list idx)
 {
 	int nid, zid;
 	struct mem_cgroup_per_zone *mz;
@@ -297,11 +289,9 @@ static void __mem_cgroup_remove_list(struct mem_cgroup_per_zone *mz,
 			struct page_cgroup *pc)
 {
 	int from = pc->flags & PAGE_CGROUP_FLAG_ACTIVE;
+	int lru = !!from;
 
-	if (from)
-		MEM_CGROUP_ZSTAT(mz, MEM_CGROUP_ZSTAT_ACTIVE) -= 1;
-	else
-		MEM_CGROUP_ZSTAT(mz, MEM_CGROUP_ZSTAT_INACTIVE) -= 1;
+	MEM_CGROUP_ZSTAT(mz, lru) -= 1;
 
 	mem_cgroup_charge_statistics(pc->mem_cgroup, pc->flags, false);
 	list_del(&pc->lru);
@@ -310,37 +300,35 @@ static void __mem_cgroup_remove_list(struct mem_cgroup_per_zone *mz,
 static void __mem_cgroup_add_list(struct mem_cgroup_per_zone *mz,
 				struct page_cgroup *pc)
 {
-	int to = pc->flags & PAGE_CGROUP_FLAG_ACTIVE;
+	int lru = LRU_INACTIVE;
+
+	if (pc->flags & PAGE_CGROUP_FLAG_ACTIVE)
+		lru += LRU_ACTIVE;
+
+	MEM_CGROUP_ZSTAT(mz, lru) += 1;
+	list_add(&pc->lru, &mz->lists[lru]);
 
-	if (!to) {
-		MEM_CGROUP_ZSTAT(mz, MEM_CGROUP_ZSTAT_INACTIVE) += 1;
-		list_add(&pc->lru, &mz->inactive_list);
-	} else {
-		MEM_CGROUP_ZSTAT(mz, MEM_CGROUP_ZSTAT_ACTIVE) += 1;
-		list_add(&pc->lru, &mz->active_list);
-	}
 	mem_cgroup_charge_statistics(pc->mem_cgroup, pc->flags, true);
 }
 
 static void __mem_cgroup_move_lists(struct page_cgroup *pc, bool active)
 {
-	int from = pc->flags & PAGE_CGROUP_FLAG_ACTIVE;
 	struct mem_cgroup_per_zone *mz = page_cgroup_zoneinfo(pc);
+	int lru = LRU_INACTIVE;
 
-	if (from)
-		MEM_CGROUP_ZSTAT(mz, MEM_CGROUP_ZSTAT_ACTIVE) -= 1;
-	else
-		MEM_CGROUP_ZSTAT(mz, MEM_CGROUP_ZSTAT_INACTIVE) -= 1;
+	if (pc->flags & PAGE_CGROUP_FLAG_ACTIVE)
+		lru += LRU_ACTIVE;
 
-	if (active) {
-		MEM_CGROUP_ZSTAT(mz, MEM_CGROUP_ZSTAT_ACTIVE) += 1;
+	MEM_CGROUP_ZSTAT(mz, lru) -= 1;
+
+	if (active)
 		pc->flags |= PAGE_CGROUP_FLAG_ACTIVE;
-		list_move(&pc->lru, &mz->active_list);
-	} else {
-		MEM_CGROUP_ZSTAT(mz, MEM_CGROUP_ZSTAT_INACTIVE) += 1;
+	else
 		pc->flags &= ~PAGE_CGROUP_FLAG_ACTIVE;
-		list_move(&pc->lru, &mz->inactive_list);
-	}
+
+	lru = !!active;
+	MEM_CGROUP_ZSTAT(mz, lru) += 1;
+	list_move(&pc->lru, &mz->lists[lru]);
 }
 
 int task_in_mem_cgroup(struct task_struct *task, const struct mem_cgroup *mem)
@@ -412,8 +400,8 @@ long mem_cgroup_reclaim_imbalance(struct mem_cgroup *mem)
 {
 	unsigned long active, inactive;
 	/* active and inactive are the number of pages. 'long' is ok.*/
-	active = mem_cgroup_get_all_zonestat(mem, MEM_CGROUP_ZSTAT_ACTIVE);
-	inactive = mem_cgroup_get_all_zonestat(mem, MEM_CGROUP_ZSTAT_INACTIVE);
+	active = mem_cgroup_get_all_zonestat(mem, LRU_ACTIVE);
+	inactive = mem_cgroup_get_all_zonestat(mem, LRU_INACTIVE);
 	return (long) (active / (inactive + 1));
 }
 
@@ -444,28 +432,17 @@ void mem_cgroup_record_reclaim_priority(struct mem_cgroup *mem, int priority)
  * (see include/linux/mmzone.h)
  */
 
-long mem_cgroup_calc_reclaim_active(struct mem_cgroup *mem,
-				   struct zone *zone, int priority)
+long mem_cgroup_calc_reclaim(struct mem_cgroup *mem, struct zone *zone,
+					int priority, enum lru_list lru)
 {
-	long nr_active;
+	long nr_pages;
 	int nid = zone->zone_pgdat->node_id;
 	int zid = zone_idx(zone);
 	struct mem_cgroup_per_zone *mz = mem_cgroup_zoneinfo(mem, nid, zid);
 
-	nr_active = MEM_CGROUP_ZSTAT(mz, MEM_CGROUP_ZSTAT_ACTIVE);
-	return (nr_active >> priority);
-}
-
-long mem_cgroup_calc_reclaim_inactive(struct mem_cgroup *mem,
-					struct zone *zone, int priority)
-{
-	long nr_inactive;
-	int nid = zone->zone_pgdat->node_id;
-	int zid = zone_idx(zone);
-	struct mem_cgroup_per_zone *mz = mem_cgroup_zoneinfo(mem, nid, zid);
+	nr_pages = MEM_CGROUP_ZSTAT(mz, lru);
 
-	nr_inactive = MEM_CGROUP_ZSTAT(mz, MEM_CGROUP_ZSTAT_INACTIVE);
-	return (nr_inactive >> priority);
+	return (nr_pages >> priority);
 }
 
 unsigned long mem_cgroup_isolate_pages(unsigned long nr_to_scan,
@@ -484,14 +461,11 @@ unsigned long mem_cgroup_isolate_pages(unsigned long nr_to_scan,
 	int nid = z->zone_pgdat->node_id;
 	int zid = zone_idx(z);
 	struct mem_cgroup_per_zone *mz;
+	int lru = !!active;
 
 	BUG_ON(!mem_cont);
 	mz = mem_cgroup_zoneinfo(mem_cont, nid, zid);
-	if (active)
-		src = &mz->active_list;
-	else
-		src = &mz->inactive_list;
-
+	src = &mz->lists[lru];
 
 	spin_lock(&mz->lru_lock);
 	scan = 0;
@@ -863,7 +837,7 @@ int mem_cgroup_resize_limit(struct mem_cgroup *memcg, unsigned long long val)
 #define FORCE_UNCHARGE_BATCH	(128)
 static void mem_cgroup_force_empty_list(struct mem_cgroup *mem,
 			    struct mem_cgroup_per_zone *mz,
-			    int active)
+			    enum lru_list lru)
 {
 	struct page_cgroup *pc;
 	struct page *page;
@@ -871,10 +845,7 @@ static void mem_cgroup_force_empty_list(struct mem_cgroup *mem,
 	unsigned long flags;
 	struct list_head *list;
 
-	if (active)
-		list = &mz->active_list;
-	else
-		list = &mz->inactive_list;
+	list = &mz->lists[lru];
 
 	spin_lock_irqsave(&mz->lru_lock, flags);
 	while (!list_empty(list)) {
@@ -922,11 +893,10 @@ static int mem_cgroup_force_empty(struct mem_cgroup *mem)
 		for_each_node_state(node, N_POSSIBLE)
 			for (zid = 0; zid < MAX_NR_ZONES; zid++) {
 				struct mem_cgroup_per_zone *mz;
+				enum lru_list l;
 				mz = mem_cgroup_zoneinfo(mem, node, zid);
-				/* drop all page_cgroup in active_list */
-				mem_cgroup_force_empty_list(mem, mz, 1);
-				/* drop all page_cgroup in inactive_list */
-				mem_cgroup_force_empty_list(mem, mz, 0);
+				for_each_lru(l)
+					mem_cgroup_force_empty_list(mem, mz, l);
 			}
 	}
 	ret = 0;
@@ -1015,9 +985,9 @@ static int mem_control_stat_show(struct cgroup *cont, struct cftype *cft,
 		unsigned long active, inactive;
 
 		inactive = mem_cgroup_get_all_zonestat(mem_cont,
-						MEM_CGROUP_ZSTAT_INACTIVE);
+						LRU_INACTIVE);
 		active = mem_cgroup_get_all_zonestat(mem_cont,
-						MEM_CGROUP_ZSTAT_ACTIVE);
+						LRU_ACTIVE);
 		cb->fill(cb, "active", (active) * PAGE_SIZE);
 		cb->fill(cb, "inactive", (inactive) * PAGE_SIZE);
 	}
@@ -1062,6 +1032,7 @@ static int alloc_mem_cgroup_per_zone_info(struct mem_cgroup *mem, int node)
 {
 	struct mem_cgroup_per_node *pn;
 	struct mem_cgroup_per_zone *mz;
+	enum lru_list l;
 	int zone, tmp = node;
 	/*
 	 * This routine is called against possible nodes.
@@ -1082,9 +1053,9 @@ static int alloc_mem_cgroup_per_zone_info(struct mem_cgroup *mem, int node)
 
 	for (zone = 0; zone < MAX_NR_ZONES; zone++) {
 		mz = &pn->zoneinfo[zone];
-		INIT_LIST_HEAD(&mz->active_list);
-		INIT_LIST_HEAD(&mz->inactive_list);
 		spin_lock_init(&mz->lru_lock);
+		for_each_lru(l)
+			INIT_LIST_HEAD(&mz->lists[l]);
 	}
 	return 0;
 }
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 9eb9eb928285..ee7a96ef40dc 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -3414,6 +3414,7 @@ static void __paginginit free_area_init_core(struct pglist_data *pgdat,
 	for (j = 0; j < MAX_NR_ZONES; j++) {
 		struct zone *zone = pgdat->node_zones + j;
 		unsigned long size, realsize, memmap_pages;
+		enum lru_list l;
 
 		size = zone_spanned_pages_in_node(nid, j, zones_size);
 		realsize = size - zone_absent_pages_in_node(nid, j,
@@ -3465,10 +3466,10 @@ static void __paginginit free_area_init_core(struct pglist_data *pgdat,
 		zone->prev_priority = DEF_PRIORITY;
 
 		zone_pcp_init(zone);
-		INIT_LIST_HEAD(&zone->active_list);
-		INIT_LIST_HEAD(&zone->inactive_list);
-		zone->nr_scan_active = 0;
-		zone->nr_scan_inactive = 0;
+		for_each_lru(l) {
+			INIT_LIST_HEAD(&zone->lru[l].list);
+			zone->lru[l].nr_scan = 0;
+		}
 		zap_zone_vm_stats(zone);
 		zone->flags = 0;
 		if (!size)
diff --git a/mm/swap.c b/mm/swap.c
index 9e0cb3118079..82c2b3a76f94 100644
--- a/mm/swap.c
+++ b/mm/swap.c
@@ -117,7 +117,7 @@ static void pagevec_move_tail(struct pagevec *pvec)
 			spin_lock(&zone->lru_lock);
 		}
 		if (PageLRU(page) && !PageActive(page)) {
-			list_move_tail(&page->lru, &zone->inactive_list);
+			list_move_tail(&page->lru, &zone->lru[LRU_INACTIVE].list);
 			pgmoved++;
 		}
 	}
diff --git a/mm/vmscan.c b/mm/vmscan.c
index 1fd4912a596c..46fdaa546b8d 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -819,10 +819,10 @@ static unsigned long isolate_pages_global(unsigned long nr,
 					int active)
 {
 	if (active)
-		return isolate_lru_pages(nr, &z->active_list, dst,
+		return isolate_lru_pages(nr, &z->lru[LRU_ACTIVE].list, dst,
 						scanned, order, mode);
 	else
-		return isolate_lru_pages(nr, &z->inactive_list, dst,
+		return isolate_lru_pages(nr, &z->lru[LRU_INACTIVE].list, dst,
 						scanned, order, mode);
 }
 
@@ -973,10 +973,7 @@ static unsigned long shrink_inactive_list(unsigned long max_scan,
 			VM_BUG_ON(PageLRU(page));
 			SetPageLRU(page);
 			list_del(&page->lru);
-			if (PageActive(page))
-				add_page_to_active_list(zone, page);
-			else
-				add_page_to_inactive_list(zone, page);
+			add_page_to_lru_list(zone, page, page_lru(page));
 			if (!pagevec_add(&pvec, page)) {
 				spin_unlock_irq(&zone->lru_lock);
 				__pagevec_release(&pvec);
@@ -1144,8 +1141,8 @@ static void shrink_active_list(unsigned long nr_pages, struct zone *zone,
 	int pgdeactivate = 0;
 	unsigned long pgscanned;
 	LIST_HEAD(l_hold);	/* The pages which were snipped off */
-	LIST_HEAD(l_inactive);	/* Pages to go onto the inactive_list */
-	LIST_HEAD(l_active);	/* Pages to go onto the active_list */
+	LIST_HEAD(l_active);
+	LIST_HEAD(l_inactive);
 	struct page *page;
 	struct pagevec pvec;
 	int reclaim_mapped = 0;
@@ -1194,7 +1191,7 @@ static void shrink_active_list(unsigned long nr_pages, struct zone *zone,
 		VM_BUG_ON(!PageActive(page));
 		ClearPageActive(page);
 
-		list_move(&page->lru, &zone->inactive_list);
+		list_move(&page->lru, &zone->lru[LRU_INACTIVE].list);
 		mem_cgroup_move_lists(page, false);
 		pgmoved++;
 		if (!pagevec_add(&pvec, page)) {
@@ -1224,7 +1221,7 @@ static void shrink_active_list(unsigned long nr_pages, struct zone *zone,
 		SetPageLRU(page);
 		VM_BUG_ON(!PageActive(page));
 
-		list_move(&page->lru, &zone->active_list);
+		list_move(&page->lru, &zone->lru[LRU_ACTIVE].list);
 		mem_cgroup_move_lists(page, true);
 		pgmoved++;
 		if (!pagevec_add(&pvec, page)) {
@@ -1244,65 +1241,64 @@ static void shrink_active_list(unsigned long nr_pages, struct zone *zone,
 	pagevec_release(&pvec);
 }
 
+static unsigned long shrink_list(enum lru_list l, unsigned long nr_to_scan,
+	struct zone *zone, struct scan_control *sc, int priority)
+{
+	if (l == LRU_ACTIVE) {
+		shrink_active_list(nr_to_scan, zone, sc, priority);
+		return 0;
+	}
+	return shrink_inactive_list(nr_to_scan, zone, sc);
+}
+
 /*
  * This is a basic per-zone page freer.  Used by both kswapd and direct reclaim.
  */
 static unsigned long shrink_zone(int priority, struct zone *zone,
 				struct scan_control *sc)
 {
-	unsigned long nr_active;
-	unsigned long nr_inactive;
+	unsigned long nr[NR_LRU_LISTS];
 	unsigned long nr_to_scan;
 	unsigned long nr_reclaimed = 0;
+	enum lru_list l;
 
 	if (scan_global_lru(sc)) {
 		/*
 		 * Add one to nr_to_scan just to make sure that the kernel
 		 * will slowly sift through the active list.
 		 */
-		zone->nr_scan_active +=
-			(zone_page_state(zone, NR_ACTIVE) >> priority) + 1;
-		nr_active = zone->nr_scan_active;
-		zone->nr_scan_inactive +=
-			(zone_page_state(zone, NR_INACTIVE) >> priority) + 1;
-		nr_inactive = zone->nr_scan_inactive;
-		if (nr_inactive >= sc->swap_cluster_max)
-			zone->nr_scan_inactive = 0;
-		else
-			nr_inactive = 0;
-
-		if (nr_active >= sc->swap_cluster_max)
-			zone->nr_scan_active = 0;
-		else
-			nr_active = 0;
+		for_each_lru(l) {
+			zone->lru[l].nr_scan += (zone_page_state(zone,
+					NR_LRU_BASE + l)  >> priority) + 1;
+			nr[l] = zone->lru[l].nr_scan;
+			if (nr[l] >= sc->swap_cluster_max)
+				zone->lru[l].nr_scan = 0;
+			else
+				nr[l] = 0;
+		}
 	} else {
 		/*
 		 * This reclaim occurs not because zone memory shortage but
 		 * because memory controller hits its limit.
 		 * Then, don't modify zone reclaim related data.
 		 */
-		nr_active = mem_cgroup_calc_reclaim_active(sc->mem_cgroup,
-					zone, priority);
+		nr[LRU_ACTIVE] = mem_cgroup_calc_reclaim(sc->mem_cgroup,
+					zone, priority, LRU_ACTIVE);
 
-		nr_inactive = mem_cgroup_calc_reclaim_inactive(sc->mem_cgroup,
-					zone, priority);
+		nr[LRU_INACTIVE] = mem_cgroup_calc_reclaim(sc->mem_cgroup,
+					zone, priority, LRU_INACTIVE);
 	}
 
-
-	while (nr_active || nr_inactive) {
-		if (nr_active) {
-			nr_to_scan = min(nr_active,
+	while (nr[LRU_ACTIVE] || nr[LRU_INACTIVE]) {
+		for_each_lru(l) {
+			if (nr[l]) {
+				nr_to_scan = min(nr[l],
 					(unsigned long)sc->swap_cluster_max);
-			nr_active -= nr_to_scan;
-			shrink_active_list(nr_to_scan, zone, sc, priority);
-		}
+				nr[l] -= nr_to_scan;
 
-		if (nr_inactive) {
-			nr_to_scan = min(nr_inactive,
-					(unsigned long)sc->swap_cluster_max);
-			nr_inactive -= nr_to_scan;
-			nr_reclaimed += shrink_inactive_list(nr_to_scan, zone,
-								sc);
+				nr_reclaimed += shrink_list(l, nr_to_scan,
+							zone, sc, priority);
+			}
 		}
 	}
 
@@ -1819,6 +1815,7 @@ static unsigned long shrink_all_zones(unsigned long nr_pages, int prio,
 {
 	struct zone *zone;
 	unsigned long nr_to_scan, ret = 0;
+	enum lru_list l;
 
 	for_each_zone(zone) {
 
@@ -1828,28 +1825,25 @@ static unsigned long shrink_all_zones(unsigned long nr_pages, int prio,
 		if (zone_is_all_unreclaimable(zone) && prio != DEF_PRIORITY)
 			continue;
 
-		/* For pass = 0 we don't shrink the active list */
-		if (pass > 0) {
-			zone->nr_scan_active +=
-				(zone_page_state(zone, NR_ACTIVE) >> prio) + 1;
-			if (zone->nr_scan_active >= nr_pages || pass > 3) {
-				zone->nr_scan_active = 0;
+		for_each_lru(l) {
+			/* For pass = 0 we don't shrink the active list */
+			if (pass == 0 && l == LRU_ACTIVE)
+				continue;
+
+			zone->lru[l].nr_scan +=
+				(zone_page_state(zone, NR_LRU_BASE + l)
+								>> prio) + 1;
+			if (zone->lru[l].nr_scan >= nr_pages || pass > 3) {
+				zone->lru[l].nr_scan = 0;
 				nr_to_scan = min(nr_pages,
-					zone_page_state(zone, NR_ACTIVE));
-				shrink_active_list(nr_to_scan, zone, sc, prio);
+					zone_page_state(zone,
+							NR_LRU_BASE + l));
+				ret += shrink_list(l, nr_to_scan, zone,
+								sc, prio);
+				if (ret >= nr_pages)
+					return ret;
 			}
 		}
-
-		zone->nr_scan_inactive +=
-			(zone_page_state(zone, NR_INACTIVE) >> prio) + 1;
-		if (zone->nr_scan_inactive >= nr_pages || pass > 3) {
-			zone->nr_scan_inactive = 0;
-			nr_to_scan = min(nr_pages,
-				zone_page_state(zone, NR_INACTIVE));
-			ret += shrink_inactive_list(nr_to_scan, zone, sc);
-			if (ret >= nr_pages)
-				return ret;
-		}
 	}
 
 	return ret;
diff --git a/mm/vmstat.c b/mm/vmstat.c
index d7826af2fb07..52c0335c1b71 100644
--- a/mm/vmstat.c
+++ b/mm/vmstat.c
@@ -696,7 +696,8 @@ static void zoneinfo_show_print(struct seq_file *m, pg_data_t *pgdat,
 		   zone->pages_low,
 		   zone->pages_high,
 		   zone->pages_scanned,
-		   zone->nr_scan_active, zone->nr_scan_inactive,
+		   zone->lru[LRU_ACTIVE].nr_scan,
+		   zone->lru[LRU_INACTIVE].nr_scan,
 		   zone->spanned_pages,
 		   zone->present_pages);