X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=include%2Fasm-i386%2Fmmzone.h;h=74f595d80579c275e103d0ac326b969e69561ab5;hb=987b0145d94eecf292d8b301228356f44611ab7c;hp=e33e9f9e4c6606b2b86d0cacdff42ba72f32944c;hpb=f7ed79d23a47594e7834d66a8f14449796d4f3e6;p=linux-2.6.git

diff --git a/include/asm-i386/mmzone.h b/include/asm-i386/mmzone.h
index e33e9f9e4..74f595d80 100644
--- a/include/asm-i386/mmzone.h
+++ b/include/asm-i386/mmzone.h
@@ -70,6 +70,8 @@ static inline int pfn_to_nid(unsigned long pfn)
 #endif
 }
 
+#define node_localnr(pfn, nid)		((pfn) - node_data[nid]->node_start_pfn)
+
 /*
  * Following are macros that each numa implmentation must define.
  */
@@ -84,6 +86,21 @@ static inline int pfn_to_nid(unsigned long pfn)
 /* XXX: FIXME -- wli */
 #define kern_addr_valid(kaddr)	(0)
 
+#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);			\
+	(unsigned long)(__page - __zone->zone_mem_map)			\
+		+ __zone->zone_start_pfn;				\
+})
+
 #ifdef CONFIG_X86_NUMAQ            /* we have contiguous memory on NUMA-Q */
 #define pfn_valid(pfn)          ((pfn) < num_physpages)
 #else