---

yaml
---
r: 86682
b: refs/heads/master
c: ae20bfd
h: refs/heads/master
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 27d9e4e94862c89d171cf70911b4f11ad69fb54e
+refs/heads/master: ae20bfda6813387af18c7fdbc0f8b1fa7be2d05b

trunk/mm/slub.c

@@ -2610,34 +2610,32 @@ size_t ksize(const void *object)
 	struct page *page;
 	struct kmem_cache *s;
 
-	BUG_ON(!object);
 	if (unlikely(object == ZERO_SIZE_PTR))
 		return 0;
 
 	page = virt_to_head_page(object);
-	BUG_ON(!page);
 
 	if (unlikely(!PageSlab(page)))
 		return PAGE_SIZE << compound_order(page);
 
 	s = page->slab;
-	BUG_ON(!s);
 
+#ifdef CONFIG_SLUB_DEBUG
 	/*
 	 * Debugging requires use of the padding between object
 	 * and whatever may come after it.
 	 */
 	if (s->flags & (SLAB_RED_ZONE | SLAB_POISON))
 		return s->objsize;
 
+#endif
 	/*
 	 * If we have the need to store the freelist pointer
 	 * back there or track user information then we can
 	 * only use the space before that information.
 	 */
 	if (s->flags & (SLAB_DESTROY_BY_RCU | SLAB_STORE_USER))
 		return s->inuse;
-
 	/*
 	 * Else we can use all the padding etc for the allocation
 	 */