From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail191.messagelabs.com (mail191.messagelabs.com [216.82.242.19]) by kanga.kvack.org (Postfix) with SMTP id 441806B01E9 for ; Mon, 14 Jun 2010 14:05:19 -0400 (EDT) Message-ID: <4C166F2E.4030606@redhat.com> Date: Mon, 14 Jun 2010 14:04:30 -0400 From: Rik van Riel MIME-Version: 1.0 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: owner-linux-mm@kvack.org 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 List-ID: 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, 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