From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail144.messagelabs.com (mail144.messagelabs.com [216.82.254.51]) by kanga.kvack.org (Postfix) with SMTP id DAF0F6B01FE for ; Tue, 13 Apr 2010 20:23:55 -0400 (EDT) Received: from m1.gw.fujitsu.co.jp ([10.0.50.71]) by fgwmail7.fujitsu.co.jp (Fujitsu Gateway) with ESMTP id o3E0Npqn027005 for (envelope-from kamezawa.hiroyu@jp.fujitsu.com); Wed, 14 Apr 2010 09:23:51 +0900 Received: from smail (m1 [127.0.0.1]) by outgoing.m1.gw.fujitsu.co.jp (Postfix) with ESMTP id EE2A745DE4F for ; Wed, 14 Apr 2010 09:23:50 +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 CE95C45DE4E for ; Wed, 14 Apr 2010 09:23:50 +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 B8818E08001 for ; Wed, 14 Apr 2010 09:23:50 +0900 (JST) Received: from m108.s.css.fujitsu.com (m108.s.css.fujitsu.com [10.249.87.108]) by s1.gw.fujitsu.co.jp (Postfix) with ESMTP id 78B151DB8046 for ; Wed, 14 Apr 2010 09:23:50 +0900 (JST) Date: Wed, 14 Apr 2010 09:19:59 +0900 From: KAMEZAWA Hiroyuki Subject: Re: [PATCH 4/6] change alloc function in vmemmap_alloc_block Message-Id: <20100414091959.313c61b0.kamezawa.hiroyu@jp.fujitsu.com> In-Reply-To: <3108a367a27c55392904c3f046aa0b5420efe261.1271171877.git.minchan.kim@gmail.com> References: <9918f566ab0259356cded31fd1dd80da6cae0c2b.1271171877.git.minchan.kim@gmail.com> <3108a367a27c55392904c3f046aa0b5420efe261.1271171877.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, Christoph Lameter List-ID: On Wed, 14 Apr 2010 00:25:01 +0900 Minchan Kim wrote: > if node_state is N_HIGH_MEMORY, node doesn't have -1. > 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: Christoph Lameter > Signed-off-by: Minchan Kim Reviewed-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