From 524e698da40a4e0e36d2b9a446f8c2771af3578d Mon Sep 17 00:00:00 2001
From: Andrew Morton <akpm@linux-foundation.org>
Date: Wed, 27 Mar 2013 10:24:47 +1100
Subject: [PATCH] include-linux-mmzoneh-cleanups-fix

use zone_idx() some more, further simplify is_highmem()

Cc: Lin Feng <linfeng@cn.fujitsu.com>
Cc: Mel Gorman <mel@csn.ul.ie>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
 include/linux/mmzone.h | 15 ++++-----------
 1 file changed, 4 insertions(+), 11 deletions(-)

diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h
index 280cb6cf3ffa..8c9f859ab558 100644
--- a/include/linux/mmzone.h
+++ b/include/linux/mmzone.h
@@ -859,25 +859,18 @@ static inline int is_normal_idx(enum zone_type idx)
  */
 static inline int is_highmem(struct zone *zone)
 {
-#ifdef CONFIG_HIGHMEM
-	enum zone_type idx = zone_idx(zone);
-
-	return idx == ZONE_HIGHMEM ||
-	       (idx == ZONE_MOVABLE && zone_movable_is_highmem());
-#else
-	return 0;
-#endif
+	return is_highmem_idx(zone_idx(zone));
 }
 
 static inline int is_normal(struct zone *zone)
 {
-	return zone == zone->zone_pgdat->node_zones + ZONE_NORMAL;
+	return zone_idx(zone) == ZONE_NORMAL;
 }
 
 static inline int is_dma32(struct zone *zone)
 {
 #ifdef CONFIG_ZONE_DMA32
-	return zone == zone->zone_pgdat->node_zones + ZONE_DMA32;
+	return zone_idx(zone) == ZONE_DMA32;
 #else
 	return 0;
 #endif
@@ -886,7 +879,7 @@ static inline int is_dma32(struct zone *zone)
 static inline int is_dma(struct zone *zone)
 {
 #ifdef CONFIG_ZONE_DMA
-	return zone == zone->zone_pgdat->node_zones + ZONE_DMA;
+	return zone_idx(zone) == ZONE_DMA;
 #else
 	return 0;
 #endif
-- 
2.39.5