From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail138.messagelabs.com (mail138.messagelabs.com [216.82.249.35]) by kanga.kvack.org (Postfix) with SMTP id 280B66B01F4 for ; Wed, 14 Apr 2010 11:00:42 -0400 (EDT) Received: by wyg36 with SMTP id 36so101379wyg.14 for ; Wed, 14 Apr 2010 08:00:30 -0700 (PDT) From: Minchan Kim Subject: [PATCH v2] change alloc function in __vmalloc_area_node Date: Wed, 14 Apr 2010 23:58:38 +0900 Message-Id: <1271257119-30117-5-git-send-email-minchan.kim@gmail.com> In-Reply-To: <1271257119-30117-1-git-send-email-minchan.kim@gmail.com> References: <1271257119-30117-1-git-send-email-minchan.kim@gmail.com> Sender: owner-linux-mm@kvack.org To: Andrew Morton Cc: Mel Gorman , KAMEZAWA Hiroyuki , Bob Liu , linux-kernel@vger.kernel.org, linux-mm@kvack.org, Minchan Kim , Nick Piggin List-ID: V2 * Add some reviewed-by __vmalloc_area_node never pass -1 to alloc_pages_node. It means node's validity check is unnecessary. So we can use alloc_pages_exact_node instead of alloc_pages_node. It could avoid comparison and branch as 6484eb3e2a81807722 tried. Cc: Nick Piggin Reviewed-by: Mel Gorman Reviewed-by: KAMEZAWA Hiroyuki Signed-off-by: Minchan Kim --- mm/vmalloc.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/mm/vmalloc.c b/mm/vmalloc.c index ae00746..7abf423 100644 --- a/mm/vmalloc.c +++ b/mm/vmalloc.c @@ -1499,7 +1499,7 @@ static void *__vmalloc_area_node(struct vm_struct *area, gfp_t gfp_mask, if (node < 0) page = alloc_page(gfp_mask); else - page = alloc_pages_node(node, gfp_mask, 0); + page = alloc_pages_exact_node(node, gfp_mask, 0); if (unlikely(!page)) { /* Successfully allocated i pages, free them in __vunmap() */ -- 1.7.0.5 -- 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