diff -upr linux-2.6.20.orig/include/linux/mm.h linux-2.6.20-2/include/linux/mm.h
--- linux-2.6.20.orig/include/linux/mm.h	2007-03-06 19:09:50.000000000 +0300
+++ linux-2.6.20-2/include/linux/mm.h	2007-04-09 11:26:06.000000000 +0400
@@ -220,6 +220,12 @@ struct vm_operations_struct {
 struct mmu_gather;
 struct inode;
 
+#ifdef CONFIG_RSS_CONTAINER
+#define page_container(page)	(page->rss_container)
+#else
+#define page_container(page)	(NULL)
+#endif
+
 #define page_private(page)		((page)->private)
 #define set_page_private(page, v)	((page)->private = (v))
 
diff -upr linux-2.6.20.orig/include/linux/mm_types.h linux-2.6.20-2/include/linux/mm_types.h
--- linux-2.6.20.orig/include/linux/mm_types.h	2007-03-06 19:09:50.000000000 +0300
+++ linux-2.6.20-2/include/linux/mm_types.h	2007-04-09 11:26:06.000000000 +0400
@@ -62,6 +62,9 @@ struct page {
 	void *virtual;			/* Kernel virtual address (NULL if
 					   not kmapped, ie. highmem) */
 #endif /* WANT_PAGE_VIRTUAL */
+#ifdef CONFIG_RSS_CONTAINER
+	struct page_container *rss_container;
+#endif
 };
 
 #endif /* _LINUX_MM_TYPES_H */