diff --git a/mm/slab.c b/mm/slab.c
index 944ac58..7067ea7 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -2480,8 +2480,7 @@
 	return nr_freed;
 }
 
-/* Called with slab_mutex held to protect against cpu hotplug */
-static int __cache_shrink(struct kmem_cache *cachep)
+int __kmem_cache_shrink(struct kmem_cache *cachep)
 {
 	int ret = 0, i = 0;
 	struct kmem_cache_node *n;
@@ -2502,32 +2501,11 @@
 	return (ret ? 1 : 0);
 }
 
-/**
- * kmem_cache_shrink - Shrink a cache.
- * @cachep: The cache to shrink.
- *
- * Releases as many slabs as possible for a cache.
- * To help debugging, a zero exit status indicates all slabs were released.
- */
-int kmem_cache_shrink(struct kmem_cache *cachep)
-{
-	int ret;
-	BUG_ON(!cachep || in_interrupt());
-
-	get_online_cpus();
-	mutex_lock(&slab_mutex);
-	ret = __cache_shrink(cachep);
-	mutex_unlock(&slab_mutex);
-	put_online_cpus();
-	return ret;
-}
-EXPORT_SYMBOL(kmem_cache_shrink);
-
 int __kmem_cache_shutdown(struct kmem_cache *cachep)
 {
 	int i;
 	struct kmem_cache_node *n;
-	int rc = __cache_shrink(cachep);
+	int rc = __kmem_cache_shrink(cachep);
 
 	if (rc)
 		return rc;