[PATCH] unify pfn_to_page: x86_64 pfn_to_page

x86_64 can use generic funcs.
For DISCONTIGMEM, CONFIG_OUT_OF_LINE_PFN_TO_PAGE is selected.

Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Andi Kleen <ak@muc.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

2 files changed, 1 insertions, 6 deletions

diff --git a/include/asm-x86_64/mmzone.h b/include/asm-x86_64/mmzone.h
index 937f99b26883..6b18cd8f293d 100644
--- a/include/asm-x86_64/mmzone.h
+++ b/include/asm-x86_64/mmzone.h
@@ -44,12 +44,8 @@ static inline __attribute__((pure)) int phys_to_nid(unsigned long addr)
 #define pfn_to_nid(pfn) phys_to_nid((unsigned long)(pfn) << PAGE_SHIFT)
 #define kvaddr_to_nid(kaddr)    phys_to_nid(__pa(kaddr))
 
-extern struct page *pfn_to_page(unsigned long pfn);
-extern unsigned long page_to_pfn(struct page *page);
 extern int pfn_valid(unsigned long pfn);
 #endif
 
-#define local_mapnr(kvaddr) \
-        ( (__pa(kvaddr) >> PAGE_SHIFT) - node_start_pfn(kvaddr_to_nid(kvaddr)) )
 #endif
 #endif
diff --git a/include/asm-x86_64/page.h b/include/asm-x86_64/page.h
index 615e3e494929..408185bac351 100644
--- a/include/asm-x86_64/page.h
+++ b/include/asm-x86_64/page.h
@@ -123,8 +123,6 @@ typedef struct { unsigned long pgprot; } pgprot_t;
 #define __boot_va(x)            __va(x)
 #define __boot_pa(x)            __pa(x)
 #ifdef CONFIG_FLATMEM
-#define pfn_to_page(pfn)        (mem_map + (pfn))
-#define page_to_pfn(page)       ((unsigned long)((page) - mem_map))
 #define pfn_valid(pfn)          ((pfn) < end_pfn)
 #endif
 
@@ -140,6 +138,7 @@ typedef struct { unsigned long pgprot; } pgprot_t;
 
 #endif /* __KERNEL__ */
 
+#include <asm-generic/memory_model.h>
 #include <asm-generic/page.h>
 
 #endif /* _X86_64_PAGE_H */