From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail203.messagelabs.com (mail203.messagelabs.com [216.82.254.243]) by kanga.kvack.org (Postfix) with SMTP id 4E1826B01F7 for ; Tue, 13 Apr 2010 20:08:12 -0400 (EDT) Received: from m1.gw.fujitsu.co.jp ([10.0.50.71]) by fgwmail7.fujitsu.co.jp (Fujitsu Gateway) with ESMTP id o3E088Sd020548 for (envelope-from kamezawa.hiroyu@jp.fujitsu.com); Wed, 14 Apr 2010 09:08:09 +0900 Received: from smail (m1 [127.0.0.1]) by outgoing.m1.gw.fujitsu.co.jp (Postfix) with ESMTP id 9D9D645DE51 for ; Wed, 14 Apr 2010 09:08:08 +0900 (JST) Received: from s1.gw.fujitsu.co.jp (s1.gw.fujitsu.co.jp [10.0.50.91]) by m1.gw.fujitsu.co.jp (Postfix) with ESMTP id 6F02945DE4F for ; Wed, 14 Apr 2010 09:08:08 +0900 (JST) Received: from s1.gw.fujitsu.co.jp (localhost.localdomain [127.0.0.1]) by s1.gw.fujitsu.co.jp (Postfix) with ESMTP id 56AF1E08002 for ; Wed, 14 Apr 2010 09:08:08 +0900 (JST) Received: from ml14.s.css.fujitsu.com (ml14.s.css.fujitsu.com [10.249.87.104]) by s1.gw.fujitsu.co.jp (Postfix) with ESMTP id 1425E1DB803C for ; Wed, 14 Apr 2010 09:08:05 +0900 (JST) Date: Wed, 14 Apr 2010 09:04:13 +0900 From: KAMEZAWA Hiroyuki Subject: Re: [PATCH 1/6] Remove node's validity check in alloc_pages Message-Id: <20100414090413.71376da1.kamezawa.hiroyu@jp.fujitsu.com> In-Reply-To: <9918f566ab0259356cded31fd1dd80da6cae0c2b.1271171877.git.minchan.kim@gmail.com> References: <9918f566ab0259356cded31fd1dd80da6cae0c2b.1271171877.git.minchan.kim@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org To: Minchan Kim Cc: Andrew Morton , Mel Gorman , Bob Liu , linux-kernel@vger.kernel.org, linux-mm@kvack.org List-ID: On Wed, 14 Apr 2010 00:24:58 +0900 Minchan Kim wrote: > alloc_pages calls alloc_pages_node with numa_node_id(). > alloc_pages_node can't see nid < 0. > > So we can use alloc_pages_exact_node instead of alloc_pages_node. > It could avoid comparison and branch as 6484eb3e2a81807722 tried. > > Cc: Mel Gorman > Cc: KAMEZAWA Hiroyuki > Signed-off-by: Minchan Kim Acked-by: KAMEZAWA Hiroyuki -- 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