Index: linux-2.6.18-rc4/mm/slabifier.c
===================================================================
--- linux-2.6.18-rc4.orig/mm/slabifier.c	2006-08-19 21:02:20.589432419 -0700
+++ linux-2.6.18-rc4/mm/slabifier.c	2006-08-19 21:05:33.381220683 -0700
@@ -40,6 +40,20 @@ struct slab {
 					 */
 };
 
+/* Overlay struct page */
+struct descr {
+	unsigned long flags;
+	atomic_t unused1;
+	int inuse;
+	struct descr *fist;
+	struct slab *s;
+	void *object;
+	union {
+		struct list_head lru;
+		int cpu;
+	}
+}
+
 /*
  * The page struct is used to keep necessary information about a slab.
  * For a compound page the first page keeps the slab state.