Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932288AbWATW6X (ORCPT ); Fri, 20 Jan 2006 17:58:23 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932286AbWATW6X (ORCPT ); Fri, 20 Jan 2006 17:58:23 -0500 Received: from gate.in-addr.de ([212.8.193.158]:43916 "EHLO mx.in-addr.de") by vger.kernel.org with ESMTP id S932284AbWATW6W (ORCPT ); Fri, 20 Jan 2006 17:58:22 -0500 Date: Fri, 20 Jan 2006 23:57:24 +0100 From: Lars Marowsky-Bree To: Heinz Mauelshagen , Neil Brown Cc: Phillip Susi , Jan Engelhardt , "Lincoln Dale (ltd)" , Michael Tokarev , linux-raid@vger.kernel.org, linux-kernel@vger.kernel.org, "Steinar H. Gunderson" Subject: Re: [PATCH 000 of 5] md: Introduction Message-ID: <20060120225724.GW22163@marowsky-bree.de> References: <26A66BC731DAB741837AF6B2E29C1017D47EA0@xmb-hkg-413.apac.cisco.com> <17358.52476.290687.858954@cse.unsw.edu.au> <43D00FFA.1040401@cfl.rr.com> <17360.5011.975665.371008@cse.unsw.edu.au> <43D02033.4070008@cfl.rr.com> <17360.9233.215291.380922@cse.unsw.edu.au> <20060120183621.GA2799@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20060120183621.GA2799@redhat.com> X-Ctuhulu: HASTUR User-Agent: Mutt/1.5.9i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1078 Lines: 30 On 2006-01-20T19:36:21, Heinz Mauelshagen wrote: > > Then 'dmraid' (or a similar tool) can use 'dm' interfaces for some > > raid levels and 'md' interfaces for others. > Yes, that's possible but there's recommendations to have a native target > for dm to do RAID5, so I started to implement it. Can you answer me what the recommendations are based on? I understand wanting to manage both via the same framework, but duplicating the code is just ... wrong. What's gained by it? Why not provide a dm-md wrapper which could then load/interface to all md personalities? Sincerely, Lars Marowsky-Br?e -- High Availability & Clustering SUSE Labs, Research and Development SUSE LINUX Products GmbH - A Novell Business -- Charles Darwin "Ignorance more frequently begets confidence than does knowledge" - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/