1 files changed, 26 insertions, 16 deletions

diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h
index 188cb2ffe8db..650ba2fb3301 100644
--- a/include/linux/mmzone.h
+++ b/include/linux/mmzone.h
@@ -140,25 +140,29 @@ enum lru_list {
         NR_LRU_LISTS
 };
 
-#define for_each_lru(l) for (l = 0; l < NR_LRU_LISTS; l++)
+#define for_each_lru(lru) for (lru = 0; lru < NR_LRU_LISTS; lru++)
 
-#define for_each_evictable_lru(l) for (l = 0; l <= LRU_ACTIVE_FILE; l++)
+#define for_each_evictable_lru(lru) for (lru = 0; lru <= LRU_ACTIVE_FILE; lru++)
 
-static inline int is_file_lru(enum lru_list l)
+static inline int is_file_lru(enum lru_list lru)
 {
-        return (l == LRU_INACTIVE_FILE || l == LRU_ACTIVE_FILE);
+        return (lru == LRU_INACTIVE_FILE || lru == LRU_ACTIVE_FILE);
 }
 
-static inline int is_active_lru(enum lru_list l)
+static inline int is_active_lru(enum lru_list lru)
 {
-        return (l == LRU_ACTIVE_ANON || l == LRU_ACTIVE_FILE);
+        return (lru == LRU_ACTIVE_ANON || lru == LRU_ACTIVE_FILE);
 }
 
-static inline int is_unevictable_lru(enum lru_list l)
+static inline int is_unevictable_lru(enum lru_list lru)
 {
-        return (l == LRU_UNEVICTABLE);
+        return (lru == LRU_UNEVICTABLE);
 }
 
+struct lruvec {
+        struct list_head lists[NR_LRU_LISTS];
+};
+
 /* Mask used at gathering information at once (see memcontrol.c) */
 #define LRU_ALL_FILE (BIT(LRU_INACTIVE_FILE) | BIT(LRU_ACTIVE_FILE))
 #define LRU_ALL_ANON (BIT(LRU_INACTIVE_ANON) | BIT(LRU_ACTIVE_ANON))
@@ -173,6 +177,8 @@ static inline int is_unevictable_lru(enum lru_list l)
 #define ISOLATE_CLEAN           ((__force isolate_mode_t)0x4)
 /* Isolate unmapped file */
 #define ISOLATE_UNMAPPED        ((__force isolate_mode_t)0x8)
+/* Isolate for asynchronous migration */
+#define ISOLATE_ASYNC_MIGRATE   ((__force isolate_mode_t)0x10)
 
 /* LRU Isolation modes. */
 typedef unsigned __bitwise__ isolate_mode_t;
@@ -317,6 +323,12 @@ struct zone {
          */
         unsigned long           lowmem_reserve[MAX_NR_ZONES];
 
+        /*
+         * This is a per-zone reserve of pages that should not be
+         * considered dirtyable memory.
+         */
+        unsigned long           dirty_balance_reserve;
+
 #ifdef CONFIG_NUMA
         int node;
         /*
@@ -358,10 +370,8 @@ struct zone {
         ZONE_PADDING(_pad1_)
 
         /* Fields commonly accessed by the page reclaim scanner */
-        spinlock_t              lru_lock;       
-        struct zone_lru {
-                struct list_head list;
-        } lru[NR_LRU_LISTS];
+        spinlock_t              lru_lock;
+        struct lruvec           lruvec;
 
         struct zone_reclaim_stat reclaim_stat;
 
@@ -598,13 +608,13 @@ struct zonelist {
 #endif
 };
 
-#ifdef CONFIG_ARCH_POPULATES_NODE_MAP
+#ifdef CONFIG_HAVE_MEMBLOCK_NODE_MAP
 struct node_active_region {
         unsigned long start_pfn;
         unsigned long end_pfn;
         int nid;
 };
-#endif /* CONFIG_ARCH_POPULATES_NODE_MAP */
+#endif /* CONFIG_HAVE_MEMBLOCK_NODE_MAP */
 
 #ifndef CONFIG_DISCONTIGMEM
 /* The array of struct pages - for discontigmem use pgdat->lmem_map */
@@ -720,7 +730,7 @@ extern int movable_zone;
 
 static inline int zone_movable_is_highmem(void)
 {
-#if defined(CONFIG_HIGHMEM) && defined(CONFIG_ARCH_POPULATES_NODE_MAP)
+#if defined(CONFIG_HIGHMEM) && defined(CONFIG_HAVE_MEMBLOCK_NODE)
         return movable_zone == ZONE_HIGHMEM;
 #else
         return 0;
@@ -938,7 +948,7 @@ static inline struct zoneref *first_zones_zonelist(struct zonelist *zonelist,
 #endif
 
 #if !defined(CONFIG_HAVE_ARCH_EARLY_PFN_TO_NID) && \
-        !defined(CONFIG_ARCH_POPULATES_NODE_MAP)
+        !defined(CONFIG_HAVE_MEMBLOCK_NODE_MAP)
 static inline unsigned long early_pfn_to_nid(unsigned long pfn)
 {
         return 0;