From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pd0-f180.google.com (mail-pd0-f180.google.com [209.85.192.180]) by kanga.kvack.org (Postfix) with ESMTP id 1AD5B6B0039 for ; Fri, 14 Feb 2014 01:57:28 -0500 (EST) Received: by mail-pd0-f180.google.com with SMTP id x10so11636394pdj.11 for ; Thu, 13 Feb 2014 22:57:27 -0800 (PST) Received: from LGEAMRELO01.lge.com (lgeamrelo01.lge.com. [156.147.1.125]) by mx.google.com with ESMTP id cb2si1827616pbb.244.2014.02.13.22.57.26 for ; Thu, 13 Feb 2014 22:57:27 -0800 (PST) From: Joonsoo Kim Subject: [PATCH 3/9] slab: move up code to get kmem_cache_node in free_block() Date: Fri, 14 Feb 2014 15:57:17 +0900 Message-Id: <1392361043-22420-4-git-send-email-iamjoonsoo.kim@lge.com> In-Reply-To: <1392361043-22420-1-git-send-email-iamjoonsoo.kim@lge.com> References: <1392361043-22420-1-git-send-email-iamjoonsoo.kim@lge.com> Sender: owner-linux-mm@kvack.org List-ID: To: Pekka Enberg Cc: Christoph Lameter , Andrew Morton , David Rientjes , Wanpeng Li , linux-mm@kvack.org, linux-kernel@vger.kernel.org, Joonsoo Kim , Joonsoo Kim node isn't changed, so we don't need to retreive this structure everytime we move the object. Maybe compiler do this optimization, but making it explicitly is better. Signed-off-by: Joonsoo Kim diff --git a/mm/slab.c b/mm/slab.c index 6d17cad..53d1a36 100644 --- a/mm/slab.c +++ b/mm/slab.c @@ -3361,6 +3361,7 @@ static void free_block(struct kmem_cache *cachep, void **objpp, int nr_objects, int i; struct kmem_cache_node *n; + n = cachep->node[node]; for (i = 0; i < nr_objects; i++) { void *objp; struct page *page; @@ -3368,7 +3369,6 @@ static void free_block(struct kmem_cache *cachep, void **objpp, int nr_objects, objp = clear_obj_pfmemalloc(objpp[i]); page = virt_to_head_page(objp); - n = cachep->node[node]; list_del(&page->lru); check_spinlock_acquired_node(cachep, node); slab_put_obj(cachep, page, objp, node); -- 1.7.9.5 -- 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