diff --git a/mm/slab.c b/mm/slab.c
index 21b2aef..ae440b5 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -4033,10 +4033,8 @@
 	 * to a larger limit. Thus disabled by default.
 	 */
 	shared = 0;
-#ifdef CONFIG_SMP
-	if (cachep->buffer_size <= PAGE_SIZE)
+	if (cachep->buffer_size <= PAGE_SIZE && num_possible_cpus() > 1)
 		shared = 8;
-#endif
 
 #if DEBUG
 	/*