diff --git a/mm/slab.h b/mm/slab.h
index 2fa8243..d07563f 100644
--- a/mm/slab.h
+++ b/mm/slab.h
@@ -167,7 +167,7 @@
 
 int __kmem_cache_shutdown(struct kmem_cache *);
 void __kmem_cache_release(struct kmem_cache *);
-int __kmem_cache_shrink(struct kmem_cache *);
+int __kmem_cache_shrink(struct kmem_cache *, bool);
 void slab_kmem_cache_release(struct kmem_cache *);
 
 struct seq_file;