Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754194Ab0FNSGU (ORCPT ); Mon, 14 Jun 2010 14:06:20 -0400 Received: from mx1.redhat.com ([209.132.183.28]:23510 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753269Ab0FNSGT (ORCPT ); Mon, 14 Jun 2010 14:06:19 -0400 Message-ID: <4C166F2E.4030606@redhat.com> Date: Mon, 14 Jun 2010 14:04:30 -0400 From: Rik van Riel User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.9) Gecko/20100430 Fedora/3.0.4-2.fc12 Lightning/1.0b2pre Thunderbird/3.0.4 MIME-Version: 1.0 To: Mel Gorman CC: linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, Dave Chinner , Chris Mason , Nick Piggin , Johannes Weiner , Christoph Hellwig , KAMEZAWA Hiroyuki , Andrew Morton Subject: Re: [PATCH 05/12] vmscan: kill prev_priority completely References: <1276514273-27693-1-git-send-email-mel@csn.ul.ie> <1276514273-27693-6-git-send-email-mel@csn.ul.ie> In-Reply-To: <1276514273-27693-6-git-send-email-mel@csn.ul.ie> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 902 Lines: 23 On 06/14/2010 07:17 AM, Mel Gorman wrote: > From: KOSAKI Motohiro > > Since 2.6.28 zone->prev_priority is unused. Then it can be removed > safely. It reduce stack usage slightly. > > Now I have to say that I'm sorry. 2 years ago, I thought prev_priority > can be integrate again, it's useful. but four (or more) times trying > haven't got good performance number. Thus I give up such approach. > > Signed-off-by: KOSAKI Motohiro > Reviewed-by: Johannes Weiner > Signed-off-by: Mel Gorman Reviewed-by: Rik van Riel -- All rights reversed -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/