From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753087AbYIPV4l (ORCPT ); Tue, 16 Sep 2008 17:56:41 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751432AbYIPV4d (ORCPT ); Tue, 16 Sep 2008 17:56:33 -0400 Received: from terminus.zytor.com ([198.137.202.10]:58800 "EHLO terminus.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751144AbYIPV4d (ORCPT ); Tue, 16 Sep 2008 17:56:33 -0400 Message-ID: <48D02B5B.9090204@zytor.com> Date: Tue, 16 Sep 2008 14:55:39 -0700 From: "H. Peter Anvin" User-Agent: Thunderbird 2.0.0.16 (X11/20080723) MIME-Version: 1.0 To: Yinghai Lu CC: Marcin Slusarz , Ingo Molnar , Thomas Gleixner , Andrew Morton , linux-kernel@vger.kernel.org Subject: Re: [PATCH 1/5] add DEFINE_LOGLEVEL_SETUP v3 References: <1221588085-30578-1-git-send-email-yhlu.kernel@gmail.com> <1221588085-30578-2-git-send-email-yhlu.kernel@gmail.com> <20080916190224.GA6115@joi> <86802c440809161404v4b59f1c8se1ac61f982a15dd@mail.gmail.com> <48D022B0.5080402@zytor.com> <86802c440809161428j2dfc9669g229a5bf23da63f34@mail.gmail.com> In-Reply-To: <86802c440809161428j2dfc9669g229a5bf23da63f34@mail.gmail.com> 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 Yinghai Lu wrote: > On Tue, Sep 16, 2008 at 2:18 PM, H. Peter Anvin wrote: >> Yinghai Lu wrote: >>> will come out one new version that hpa likes >>> >>> printk(KERN_PCI KERN_DEBUG "sadfasf\n"); >>> >> Come to think about it, it might help migration pains if we put the prefixes >> in the opposite order (KERN_DEBUG KERN_PCI). >> > according to the code flow, these two is the same... will double check it. > The difference is that things that read the kernel log in userspace will be able to make partial sense of the latter, but not the former. It will thus make the transition smoother. -hpa