4 files changed, 25 insertions, 4 deletions

diff --git a/include/linux/gfp.h b/include/linux/gfp.h
index e5882fe49f83..bc68dd9a6d41 100644
--- a/include/linux/gfp.h
+++ b/include/linux/gfp.h
@@ -106,6 +106,9 @@ static inline enum zone_type gfp_zone(gfp_t flags)
         if (flags & __GFP_DMA32)
                 return ZONE_DMA32;
 #endif
+        if ((flags & (__GFP_HIGHMEM | __GFP_MOVABLE)) ==
+                        (__GFP_HIGHMEM | __GFP_MOVABLE))
+                return ZONE_MOVABLE;
 #ifdef CONFIG_HIGHMEM
         if (flags & __GFP_HIGHMEM)
                 return ZONE_HIGHMEM;
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 97d0cddfd223..857e44817178 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -1005,6 +1005,7 @@ extern unsigned long find_max_pfn_with_active_regions(void);
 extern void free_bootmem_with_active_regions(int nid,
                                                 unsigned long max_low_pfn);
 extern void sparse_memory_present_with_active_regions(int nid);
+extern int cmdline_parse_kernelcore(char *p);
 #ifndef CONFIG_HAVE_ARCH_EARLY_PFN_TO_NID
 extern int early_pfn_to_nid(unsigned long pfn);
 #endif /* CONFIG_HAVE_ARCH_EARLY_PFN_TO_NID */
diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h
index 04b1636a970b..d71ff763c9df 100644
--- a/include/linux/mmzone.h
+++ b/include/linux/mmzone.h
@@ -146,6 +146,7 @@ enum zone_type {
          */
         ZONE_HIGHMEM,
 #endif
+        ZONE_MOVABLE,
         MAX_NR_ZONES
 };
 
@@ -167,6 +168,7 @@ enum zone_type {
         + defined(CONFIG_ZONE_DMA32)    \
         + 1                             \
         + defined(CONFIG_HIGHMEM)       \
+        + 1                             \
 )
 #if __ZONE_COUNT < 2
 #define ZONES_SHIFT 0
@@ -499,10 +501,22 @@ static inline int populated_zone(struct zone *zone)
         return (!!zone->present_pages);
 }
 
+extern int movable_zone;
+
+static inline int zone_movable_is_highmem(void)
+{
+#if defined(CONFIG_HIGHMEM) && defined(CONFIG_ARCH_POPULATES_NODE_MAP)
+        return movable_zone == ZONE_HIGHMEM;
+#else
+        return 0;
+#endif
+}
+
 static inline int is_highmem_idx(enum zone_type idx)
 {
 #ifdef CONFIG_HIGHMEM
-        return (idx == ZONE_HIGHMEM);
+        return (idx == ZONE_HIGHMEM ||
+                (idx == ZONE_MOVABLE && zone_movable_is_highmem()));
 #else
         return 0;
 #endif
@@ -522,7 +536,9 @@ static inline int is_normal_idx(enum zone_type idx)
 static inline int is_highmem(struct zone *zone)
 {
 #ifdef CONFIG_HIGHMEM
-        return zone == zone->zone_pgdat->node_zones + ZONE_HIGHMEM;
+        int zone_idx = zone - zone->zone_pgdat->node_zones;
+        return zone_idx == ZONE_HIGHMEM ||
+                (zone_idx == ZONE_MOVABLE && zone_movable_is_highmem());
 #else
         return 0;
 #endif
diff --git a/include/linux/vmstat.h b/include/linux/vmstat.h
index d9325cf8a134..75370ec0923e 100644
--- a/include/linux/vmstat.h
+++ b/include/linux/vmstat.h
@@ -25,7 +25,7 @@
 #define HIGHMEM_ZONE(xx)
 #endif
 
-#define FOR_ALL_ZONES(xx) DMA_ZONE(xx) DMA32_ZONE(xx) xx##_NORMAL HIGHMEM_ZONE(xx)
+#define FOR_ALL_ZONES(xx) DMA_ZONE(xx) DMA32_ZONE(xx) xx##_NORMAL HIGHMEM_ZONE(xx) , xx##_MOVABLE
 
 enum vm_event_item { PGPGIN, PGPGOUT, PSWPIN, PSWPOUT,
                 FOR_ALL_ZONES(PGALLOC),
@@ -170,7 +170,8 @@ static inline unsigned long node_page_state(int node,
 #ifdef CONFIG_HIGHMEM
                 zone_page_state(&zones[ZONE_HIGHMEM], item) +
 #endif
-                zone_page_state(&zones[ZONE_NORMAL], item);
+                zone_page_state(&zones[ZONE_NORMAL], item) +
+                zone_page_state(&zones[ZONE_MOVABLE], item);
 }
 
 extern void zone_statistics(struct zonelist *, struct zone *);