From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754877AbeE2HWo (ORCPT ); Tue, 29 May 2018 03:22:44 -0400 Received: from mx2.suse.de ([195.135.220.15]:37667 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750831AbeE2HWm (ORCPT ); Tue, 29 May 2018 03:22:42 -0400 Date: Tue, 29 May 2018 09:22:40 +0200 From: Johannes Thumshirn To: Mike Snitzer Cc: "Martin K. Petersen" , Linux NVMe Mailinglist , Laurence Oberman , Sagi Grimberg , James Smart , Ewan Milne , Linux Kernel Mailinglist , Keith Busch , Hannes Reinecke , Martin George , Christoph Hellwig , John Meneghini Subject: Re: [PATCH 0/3] Provide more fine grained control over multipathing Message-ID: <20180529072240.np5c62akbr7jqelr@linux-x5ow.site> References: <20180525125322.15398-1-jthumshirn@suse.de> <20180525130535.GA24239@lst.de> <20180525135813.GB9591@redhat.com> <20180525141211.GA25971@lst.de> <20180525145056.GD9591@redhat.com> <20180529030236.GA28895@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20180529030236.GA28895@redhat.com> User-Agent: NeoMutt/20170912 (1.9.0) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, May 28, 2018 at 11:02:36PM -0400, Mike Snitzer wrote: > No, what both Red Hat and SUSE are saying is: cool let's have a go at > "Plan A" but, in parallel, what harm is there in allowing "Plan B" (dm > multipath) to be conditionally enabled to coexist with native NVMe > multipath? For a "Plan B" we can still use the global knob that's already in place (even if this reminds me so much about scsi-mq which at least we haven't turned on in fear of performance regressions). Let's drop the discussion here, I don't think it leads to something else than flamewars. Johannes -- Johannes Thumshirn Storage jthumshirn@suse.de +49 911 74053 689 SUSE LINUX GmbH, Maxfeldstr. 5, 90409 Nürnberg GF: Felix Imendörffer, Jane Smithard, Graham Norton HRB 21284 (AG Nürnberg) Key fingerprint = EC38 9CAB C2C4 F25D 8600 D0D0 0393 969D 2D76 0850