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Diffstat (limited to 'include')
-rw-r--r--include/linux/mm.h12
1 files changed, 6 insertions, 6 deletions
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 8a45ad22a170..6321e840e21d 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -637,7 +637,7 @@ static inline pte_t maybe_mkwrite(pte_t pte, struct vm_area_struct *vma)
#define SECTIONS_MASK ((1UL << SECTIONS_WIDTH) - 1)
#define ZONEID_MASK ((1UL << ZONEID_SHIFT) - 1)
-static inline enum zone_type page_zonenum(struct page *page)
+static inline enum zone_type page_zonenum(const struct page *page)
{
return (page->flags >> ZONES_PGSHIFT) & ZONES_MASK;
}
@@ -665,15 +665,15 @@ static inline int zone_to_nid(struct zone *zone)
}
#ifdef NODE_NOT_IN_PAGE_FLAGS
-extern int page_to_nid(struct page *page);
+extern int page_to_nid(const struct page *page);
#else
-static inline int page_to_nid(struct page *page)
+static inline int page_to_nid(const struct page *page)
{
return (page->flags >> NODES_PGSHIFT) & NODES_MASK;
}
#endif
-static inline struct zone *page_zone(struct page *page)
+static inline struct zone *page_zone(const struct page *page)
{
return &NODE_DATA(page_to_nid(page))->node_zones[page_zonenum(page)];
}
@@ -718,9 +718,9 @@ static inline void set_page_links(struct page *page, enum zone_type zone,
*/
#include <linux/vmstat.h>
-static __always_inline void *lowmem_page_address(struct page *page)
+static __always_inline void *lowmem_page_address(const struct page *page)
{
- return __va(PFN_PHYS(page_to_pfn(page)));
+ return __va(PFN_PHYS(page_to_pfn((struct page *)page)));
}
#if defined(CONFIG_HIGHMEM) && !defined(WANT_PAGE_VIRTUAL)