[PATCH] unify pfn_to_page: parisc pfn_to_page

PARISC can use generic funcs.
Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

include/asm-parisc/mmzone.h

@@ -25,23 +25,6 @@ extern struct node_map_data node_data[];
 	pg_data_t *__pgdat = NODE_DATA(nid);				\
 	__pgdat->node_start_pfn + __pgdat->node_spanned_pages;		\
 })
-#define node_localnr(pfn, nid)		((pfn) - node_start_pfn(nid))
-
-#define pfn_to_page(pfn)						\
-({									\
-	unsigned long __pfn = (pfn);					\
-	int __node  = pfn_to_nid(__pfn);				\
-	&NODE_DATA(__node)->node_mem_map[node_localnr(__pfn,__node)];	\
-})
-
-#define page_to_pfn(pg)							\
-({									\
-	struct page *__page = pg;					\
-	struct zone *__zone = page_zone(__page);			\
-	BUG_ON(__zone == NULL);						\
-	(unsigned long)(__page - __zone->zone_mem_map)			\
-		+ __zone->zone_start_pfn;				\
-})
 
 /* We have these possible memory map layouts:
  * Astro: 0-3.75, 67.75-68, 4-64

include/asm-parisc/page.h

@@ -130,8 +130,6 @@ extern int npmem_ranges;
 #define __va(x)			((void *)((unsigned long)(x)+PAGE_OFFSET))
 
 #ifndef CONFIG_DISCONTIGMEM
-#define pfn_to_page(pfn)	(mem_map + (pfn))
-#define page_to_pfn(page)	((unsigned long)((page) - mem_map))
 #define pfn_valid(pfn)		((pfn) < max_mapnr)
 #endif /* CONFIG_DISCONTIGMEM */
 
@@ -152,6 +150,7 @@ extern int npmem_ranges;
 
 #endif /* __KERNEL__ */
 
+#include <asm-generic/memory_model.h>
 #include <asm-generic/page.h>
 
 #endif /* _PARISC_PAGE_H */