1 files changed, 4 insertions, 0 deletions
diff --git a/mm/slab.h b/mm/slab.h
index f9a9815cdc82..db7848caaa25 100644
--- a/mm/slab.h
+++ b/mm/slab.h
@@ -23,6 +23,10 @@ enum slab_state {
 
 extern enum slab_state slab_state;
 
+/* The slab cache mutex protects the management structures during changes */
+extern struct mutex slab_mutex;
+extern struct list_head slab_caches;
+
 struct kmem_cache *__kmem_cache_create(const char *name, size_t size,
 	size_t align, unsigned long flags, void (*ctor)(void *));