Index: linux-2.6/mm/slob.c
===================================================================
--- linux-2.6.orig/mm/slob.c
+++ linux-2.6/mm/slob.c
@@ -296,7 +296,7 @@ struct kmem_cache *kmem_cache_create(con
 		c->name = name;
 		c->size = size;
 		if (flags & SLAB_DESTROY_BY_RCU) {
-			BUG_ON(c->dtor);
+			BUG_ON(dtor);
 			/* leave room for rcu footer at the end of object */
 			c->size += sizeof(struct slob_rcu);
 		}