[PATCH] reduce MAX_NR_ZONES: use enum to define zones, reformat and comment

[karo-tx-linux.git] / include / linux / mm.h

diff --git a/include/linux/mm.h b/include/linux/mm.h
index 45678b036955b101d4779ccea560dc8a04b13da9..2db4229a0066bcd9346767efb97eecc804b2960c 100644 (file)
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -470,7 +470,7 @@ void split_page(struct page *page, unsigned int order);
 #define SECTIONS_MASK          ((1UL << SECTIONS_WIDTH) - 1)
 #define ZONETABLE_MASK         ((1UL << ZONETABLE_SHIFT) - 1)
 
-static inline unsigned long page_zonenum(struct page *page)
+static inline enum zone_type page_zonenum(struct page *page)
 {
        return (page->flags >> ZONES_PGSHIFT) & ZONES_MASK;
 }
@@ -499,11 +499,12 @@ static inline unsigned long page_to_section(struct page *page)
        return (page->flags >> SECTIONS_PGSHIFT) & SECTIONS_MASK;
 }
 
-static inline void set_page_zone(struct page *page, unsigned long zone)
+static inline void set_page_zone(struct page *page, enum zone_type zone)
 {
        page->flags &= ~(ZONES_MASK << ZONES_PGSHIFT);
        page->flags |= (zone & ZONES_MASK) << ZONES_PGSHIFT;
 }
+
 static inline void set_page_node(struct page *page, unsigned long node)
 {
        page->flags &= ~(NODES_MASK << NODES_PGSHIFT);
@@ -515,7 +516,7 @@ static inline void set_page_section(struct page *page, unsigned long section)
        page->flags |= (section & SECTIONS_MASK) << SECTIONS_PGSHIFT;
 }
 
-static inline void set_page_links(struct page *page, unsigned long zone,
+static inline void set_page_links(struct page *page, enum zone_type zone,
        unsigned long node, unsigned long pfn)
 {
        set_page_zone(page, zone);