Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Mon, 7 Oct 2002 13:20:51 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Mon, 7 Oct 2002 13:20:01 -0400 Received: from phoenix.mvhi.com ([195.224.96.167]:62993 "EHLO phoenix.infradead.org") by vger.kernel.org with ESMTP id ; Mon, 7 Oct 2002 13:19:27 -0400 Date: Mon, 7 Oct 2002 18:25:00 +0100 From: Christoph Hellwig To: Steve Pratt Cc: Mark Peloquin , torvalds@transmeta.com, linux-kernel@vger.kernel.org, evms-devel@lists.sourceforge.net Subject: Re: [Evms-devel] Re: [PATCH] EVMS core 2/4: evms.h Message-ID: <20021007182500.A20242@infradead.org> Mail-Followup-To: Christoph Hellwig , Steve Pratt , Mark Peloquin , torvalds@transmeta.com, linux-kernel@vger.kernel.org, evms-devel@lists.sourceforge.net References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5.1i In-Reply-To: ; from slpratt@us.ibm.com on Fri, Oct 04, 2002 at 01:45:04PM -0500 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1114 Lines: 26 > >> and raid and LVM them all you want, and you don't consume 1000*layers > >> device nodes. > > >I don't think it's a benefit but really ugly. There is no reason to now sorry, that "now" should have been a 'not'. > >allow access to the lower layers. How do I e.g. write a new volume label > to > >the lower level devices? > > I am not sure I understand your question. Did you mean that there does not > appear to be a **way** to access lower level devices or did you really mean > no reason to do so? Sorry again for above typo - it makes my whole statement worthless.. To clarify: I think not having device nodes for anything but the uppermost layer of evms volumes is a bad idea. This does not only make it impossible to access those normally from userspace but also makes evms duplicate code in the block layers as we already have stacking support there. - 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/