From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933477Ab1JZPfa (ORCPT ); Wed, 26 Oct 2011 11:35:30 -0400 Received: from mail-vx0-f174.google.com ([209.85.220.174]:65414 "EHLO mail-vx0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933059Ab1JZPf3 (ORCPT ); Wed, 26 Oct 2011 11:35:29 -0400 Message-ID: <4EA828F4.90204@gmail.com> Date: Wed, 26 Oct 2011 11:36:20 -0400 From: KOSAKI Motohiro User-Agent: Mozilla/5.0 (Windows NT 5.1; rv:7.0.1) Gecko/20110929 Thunderbird/7.0.1 MIME-Version: 1.0 To: dledford@redhat.com CC: akpm@linux-foundation.org, torvalds@linux-foundation.org, linux-kernel@vger.kernel.org, joe.korty@ccur.com, amwang@redhat.com Subject: Re: [PATCH 2/4] ipc/mqueue: switch back to using non-max values on create References: <1317162613-11060-1-git-send-email-dledford@redhat.com> <1317162613-11060-3-git-send-email-dledford@redhat.com> In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > NAK. > > Commit b231cca is 3 years old commit. It's too late to revert. > Moreover Commit b231cca changed hardcoded limit to kernel knob, > and this patch do reverse. Of course, latter direction changes almost > always bring us compatibility issue. > > commit b231cca4381ee15ec99afbfb244fbc0324869927 > Author: Joe Korty > Date: Sat Oct 18 20:28:32 2008 -0700 > > message queues: increase range limits > > The right way is to create new knob likes mqueue/msgsize_default > and to separate default and maximum value. I discussed with Doug a little. OK, I probably understand his motivation. Now, I ack this series with a few reservation. I'll post a few incremental patches for resolving compatibility issue.