s390 can use generic funcs.
Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
 #define PAGE_OFFSET             0x0UL
 #define __pa(x)                 (unsigned long)(x)
 #define __va(x)                 (void *)(unsigned long)(x)
-#define pfn_to_page(pfn)       (mem_map + (pfn))
-#define page_to_pfn(page)      ((unsigned long)((page) - mem_map))
 #define virt_to_page(kaddr)    pfn_to_page(__pa(kaddr) >> PAGE_SHIFT)
 
 #define pfn_valid(pfn)         ((pfn) < max_mapnr)
 
 #endif /* __KERNEL__ */
 
+#include <asm-generic/memory_model.h>
 #include <asm-generic/page.h>
 
 #endif /* _S390_PAGE_H */