[PATCH] remove page.list

Remove the now-unneeded page.list field.

include/linux/mm.h

@@ -180,7 +180,6 @@ struct page {
 	page_flags_t flags;		/* atomic flags, some possibly
 					   updated asynchronously */
 	atomic_t count;			/* Usage count, see below. */
-	struct list_head list;		/* ->mapping has some page lists. */
 	struct address_space *mapping;	/* The inode (or ...) we belong to. */
 	pgoff_t index;			/* Our offset within mapping. */
 	struct list_head lru;		/* Pageout list, eg. active_list;

mm/page_alloc.c

@@ -683,8 +683,6 @@ __alloc_pages(unsigned int gfp_mask, unsigned int order,
 	return NULL;
 got_pg:
 	kernel_map_pages(page, 1 << order, 1);
-	INIT_LIST_HEAD(&page->list);
-	INIT_LIST_HEAD(&page->lru);
 	return page;
 }