From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wr0-f197.google.com (mail-wr0-f197.google.com [209.85.128.197]) by kanga.kvack.org (Postfix) with ESMTP id 64F756B0287 for ; Thu, 23 Nov 2017 17:17:28 -0500 (EST) Received: by mail-wr0-f197.google.com with SMTP id y42so12393314wrd.23 for ; Thu, 23 Nov 2017 14:17:28 -0800 (PST) Received: from mail-sor-f65.google.com (mail-sor-f65.google.com. [209.85.220.65]) by mx.google.com with SMTPS id n23sor7261095wra.8.2017.11.23.14.17.27 for (Google Transport Security); Thu, 23 Nov 2017 14:17:27 -0800 (PST) From: Alexey Dobriyan Subject: [PATCH 20/23] slub: make slab_index() return unsigned int Date: Fri, 24 Nov 2017 01:16:25 +0300 Message-Id: <20171123221628.8313-20-adobriyan@gmail.com> In-Reply-To: <20171123221628.8313-1-adobriyan@gmail.com> References: <20171123221628.8313-1-adobriyan@gmail.com> Sender: owner-linux-mm@kvack.org List-ID: To: akpm@linux-foundation.org Cc: linux-mm@kvack.org, cl@linux.com, penberg@kernel.org, rientjes@google.com, iamjoonsoo.kim@lge.com, Alexey Dobriyan slab_index() returns index of an object within a slab which is at most u15 (or u16?). Iterators additionally guarantee that "p >= addr". Signed-off-by: Alexey Dobriyan --- mm/slub.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/slub.c b/mm/slub.c index ce71665e266c..04c8348b8ce9 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -311,7 +311,7 @@ static inline void set_freepointer(struct kmem_cache *s, void *object, void *fp) __p += (__s)->size, __idx++) /* Determine object index from a given position */ -static inline int slab_index(void *p, struct kmem_cache *s, void *addr) +static inline unsigned int slab_index(void *p, struct kmem_cache *s, void *addr) { return (p - addr) / s->size; } -- 2.13.6 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org