From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755939Ab2ECMvo (ORCPT ); Thu, 3 May 2012 08:51:44 -0400 Received: from mx1.redhat.com ([209.132.183.28]:41018 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755347Ab2ECMse (ORCPT ); Thu, 3 May 2012 08:48:34 -0400 Message-ID: <4FA27E7C.6070802@redhat.com> Date: Thu, 03 May 2012 14:47:56 +0200 From: Paolo Bonzini User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:12.0) Gecko/20120425 Thunderbird/12.0 MIME-Version: 1.0 To: Mark Lord CC: Alan Cox , Jan Kara , Jens Axboe , LKML , James Bottomley , linux-scsi@vger.kernel.org Subject: Re: [PATCH] scsi: Silence unnecessary warnings about ioctl to partition References: <1335953452-10460-1-git-send-email-jack@suse.cz> <4FA1092E.9090603@redhat.com> <20120502115447.7dcc3a54@pyramind.ukuu.org.uk> <4FA11454.2010103@redhat.com> <20120502121208.3c19a9bc@pyramind.ukuu.org.uk> <4FA11963.3040007@redhat.com> <4FA18D33.3060607@teksavvy.com> <4FA23809.2090905@redhat.com> <4FA27CDB.2080103@teksavvy.com> In-Reply-To: <4FA27CDB.2080103@teksavvy.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Il 03/05/2012 14:40, Mark Lord ha scritto: >> > >> > Breaking "hdparm --write-sector /dev/sda1"? I call it a security fix. > No, that would plain stupid on both our parts. :) > The --write-sector flag is allowed only for non-partitions by hdparm itself. Excuse my laziness--how does it check? Most programs I looked at check at the shape of the file and some are even fooled by "ln -sf /dev/sda1 ./sda". > But other flags commonly used by distros at boot time > seem to be triggering the current in-kernel noise. > Dunno which flags, I'm just ignoring them and waiting > for the noise message to get reverted. That's exactly the behavior I hoped to get when I added the warnings. Or maybe not. :) What are the messages? i.e. what ioctl do they complain about? Paolo