Index: linux-2.6.15-rc3/mm/page_alloc.c
===================================================================
--- linux-2.6.15-rc3.orig/mm/page_alloc.c	2005-11-28 19:51:27.000000000 -0800
+++ linux-2.6.15-rc3/mm/page_alloc.c	2005-11-30 18:22:34.000000000 -0800
@@ -398,12 +398,13 @@ void __free_pages_ok(struct page *page, 
 	LIST_HEAD(list);
 	int i;
 	int reserved = 0;
+	int size = 1 << order;
 
 	arch_free_page(page, order);
 
 #ifndef CONFIG_MMU
 	if (order > 0)
-		for (i = 1 ; i < (1 << order) ; ++i)
+		for (i = 1 ; i < size ; ++i)
 			__put_page(page + i);
 #endif
 
@@ -413,8 +414,8 @@ void __free_pages_ok(struct page *page, 
 		return;
 
 	list_add(&page->lru, &list);
-	mod_page_state(pgfree, 1 << order);
-	kernel_map_pages(page, 1<<order, 0);
+	mod_page_state(pgfree, size);
+	kernel_map_pages(page, size, 0);
 	free_pages_bulk(page_zone(page), 1, &list, order);
 }