On Mon, 28 May 2007 21:16:32 +0200
Geert Uytterhoeven <geert@xxxxxxxxxxxxxx> wrote:
-#define __page_address(page) (PAGE_OFFSET + (((page) - mem_map) << PAGE_SHIFT))
-#define page_to_phys(page) virt_to_phys((void *)__page_address(page))
+#ifdef CONFIG_SINGLE_MEMORY_CHUNK
+#define page_to_phys(page) \
+ __pa(PAGE_OFFSET + (((page) - pg_data_map[0].node_mem_map) << PAGE_SHIFT))
+#else
+#define page_to_phys(page) ({ \
+ struct pglist_data *pgdat; \
+ pgdat = pg_data_table[page_to_nid(page)]; \
+ page_to_pfn(page) << PAGE_SHIFT; \
+})
+#endif
macros which evaluate their args more than once are dangerous.
-
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