From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757166Ab1KUVrM (ORCPT ); Mon, 21 Nov 2011 16:47:12 -0500 Received: from mx1.redhat.com ([209.132.183.28]:39303 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757080Ab1KUVrJ (ORCPT ); Mon, 21 Nov 2011 16:47:09 -0500 Message-ID: <4ECAC6C0.3090202@redhat.com> Date: Mon, 21 Nov 2011 16:46:40 -0500 From: Rik van Riel User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:7.0) Gecko/20110927 Thunderbird/7.0 MIME-Version: 1.0 To: Mel Gorman CC: Linux-MM , Andrea Arcangeli , Minchan Kim , Jan Kara , Andy Isaacson , Johannes Weiner , LKML Subject: Re: [PATCH 2/5] mm: compaction: Use synchronous compaction for /proc/sys/vm/compact_memory References: <1321635524-8586-1-git-send-email-mgorman@suse.de> <1321635524-8586-3-git-send-email-mgorman@suse.de> In-Reply-To: <1321635524-8586-3-git-send-email-mgorman@suse.de> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 11/18/2011 11:58 AM, Mel Gorman wrote: > When asynchronous compaction was introduced, the > /proc/sys/vm/compact_memory handler should have been updated to always > use synchronous compaction. This did not happen so this patch addresses > it. The assumption is if a user writes to /proc/sys/vm/compact_memory, > they are willing for that process to stall. > > Signed-off-by: Mel Gorman Reviewed-by: Rik van Riel