1 files changed, 6 insertions, 0 deletions

diff --git a/mm/slab.h b/mm/slab.h
index 07a537ed5da3..6724aa6f662f 100644
--- a/mm/slab.h
+++ b/mm/slab.h
@@ -25,8 +25,14 @@ extern enum slab_state slab_state;
 
 /* The slab cache mutex protects the management structures during changes */
 extern struct mutex slab_mutex;
+
+/* The list of all slab caches on the system */
 extern struct list_head slab_caches;
 
+/* The slab cache that manages slab cache information */
+extern struct kmem_cache *kmem_cache;
+
+/* Functions provided by the slab allocators */
 struct kmem_cache *__kmem_cache_create(const char *name, size_t size,
         size_t align, unsigned long flags, void (*ctor)(void *));