diff --git a/mm/slab.c b/mm/slab.c
index 154aac8..eb2b2ea 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -1992,7 +1992,7 @@
 	struct array_cache __percpu *cpu_cache;
 
 	size = sizeof(void *) * entries + sizeof(struct array_cache);
-	cpu_cache = __alloc_percpu(size, 0);
+	cpu_cache = __alloc_percpu(size, sizeof(void *));
 
 	if (!cpu_cache)
 		return NULL;