[RFC][PATCH] unify pfn_to_page [18/25] s390 pfn_to_page/page_to_pfn

[KAMEZAWA Hiroyuki]

sh can use generic ones.

Signed-Off-By: KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx>
Index: cleanup_pfn_page/include/asm-sh/page.h
===================================================================
--- cleanup_pfn_page.orig/include/asm-sh/page.h
+++ cleanup_pfn_page/include/asm-sh/page.h
@@ -105,9 +105,8 @@ typedef struct { unsigned long pgprot; }

 /* PFN start number, because of __MEMORY_START */
 #define PFN_START		(__MEMORY_START >> PAGE_SHIFT)
+#define ARCH_PFN_OFFSET		PFN_START

-#define pfn_to_page(pfn)	(mem_map + (pfn) - PFN_START)
-#define page_to_pfn(page)	((unsigned long)((page) - mem_map) + PFN_START)
 #define virt_to_page(kaddr)	pfn_to_page(__pa(kaddr) >> PAGE_SHIFT)
 #define pfn_valid(pfn)		(((pfn) - PFN_START) < max_mapnr)
 #define virt_addr_valid(kaddr)	pfn_valid(__pa(kaddr) >> PAGE_SHIFT)

-
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