From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754113AbaCLLHq (ORCPT ); Wed, 12 Mar 2014 07:07:46 -0400 Received: from cantor2.suse.de ([195.135.220.15]:43178 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753626AbaCLLHp (ORCPT ); Wed, 12 Mar 2014 07:07:45 -0400 Message-ID: <53203FF3.8060105@suse.de> Date: Wed, 12 Mar 2014 12:07:31 +0100 From: Hannes Reinecke User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.1.0 MIME-Version: 1.0 To: Christoph Hellwig CC: Mike Snitzer , Jeff Moyer , Jens Axboe , Shaohua Li , "linux-kernel@vger.kernel.org" , msnitzer Subject: Re: [PATCH 1/1] block: rework flush sequencing for blk-mq References: <20140130132620.GA6031@infradead.org> <20140130132630.GB6031@infradead.org> <20140308155240.GA32297@infradead.org> <531B74B6.4070004@suse.de> <20140312102849.GA26509@infradead.org> <53203BE5.402@suse.de> <20140312105527.GA21511@infradead.org> In-Reply-To: <20140312105527.GA21511@infradead.org> X-Enigmail-Version: 1.6 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 03/12/2014 11:55 AM, Christoph Hellwig wrote: > On Wed, Mar 12, 2014 at 11:50:13AM +0100, Hannes Reinecke wrote: >> >From the device-mapper side we have these patches which are not >> included upstream: > > Another one on the dm side that seems useful is: > > dm-emulate-blkrrpart-ioctl: > Partitions on device-mapper devices are managed by kpartx (if at > all). So if we were just to send out a 'change' event if someone > called BLKRRPART on these devices, kpartx will be triggered via udev > and can manage the partitions accordingly. > Which I've omitted for a reason; looks like these kind of things it handled in userspace nowadays. It will also cause 'parted' to emit 'change' events when you just display a device. Which is _not_ want we want. So this patch will be pulled, even from SUSE. Cheers, Hannes -- Dr. Hannes Reinecke zSeries & Storage hare@suse.de +49 911 74053 688 SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 Nürnberg GF: J. Hawn, J. Guild, F. Imendörffer, HRB 16746 (AG Nürnberg)