Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755249AbYKGAmS (ORCPT ); Thu, 6 Nov 2008 19:42:18 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753952AbYKGAmC (ORCPT ); Thu, 6 Nov 2008 19:42:02 -0500 Received: from ipmail01.adl6.internode.on.net ([203.16.214.146]:50306 "EHLO ipmail01.adl6.internode.on.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753157AbYKGAmA (ORCPT ); Thu, 6 Nov 2008 19:42:00 -0500 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: ApoEAM8S9kh5LDmz/2dsb2JhbADCJoFr X-IronPort-AV: E=Sophos;i="4.33,560,1220193000"; d="scan'208";a="226520021" Date: Fri, 7 Nov 2008 11:41:31 +1100 From: Dave Chinner To: Peter Zijlstra Cc: Rik van Riel , Vivek Goyal , linux-kernel@vger.kernel.org, containers@lists.linux-foundation.org, virtualization@lists.linux-foundation.org, jens.axboe@oracle.com, Hirokazu Takahashi , Ryo Tsuruta , Andrea Righi , Satoshi UCHIDA , fernando@oss.ntt.co.jp, balbir@linux.vnet.ibm.com, Andrew Morton , menage@google.com, ngupta@google.com, Jeff Moyer Subject: Re: [patch 0/4] [RFC] Another proportional weight IO controller Message-ID: <20081107004131.GD2373@disturbed> Mail-Followup-To: Peter Zijlstra , Rik van Riel , Vivek Goyal , linux-kernel@vger.kernel.org, containers@lists.linux-foundation.org, virtualization@lists.linux-foundation.org, jens.axboe@oracle.com, Hirokazu Takahashi , Ryo Tsuruta , Andrea Righi , Satoshi UCHIDA , fernando@oss.ntt.co.jp, balbir@linux.vnet.ibm.com, Andrew Morton , menage@google.com, ngupta@google.com, Jeff Moyer References: <20081106153022.215696930@redhat.com> <1225986593.7803.4688.camel@twins> <20081106160154.GA7461@redhat.com> <1225988173.7803.4723.camel@twins> <20081106163957.GB7461@redhat.com> <1225990327.7803.4776.camel@twins> <491321ED.5010103@redhat.com> <1225991487.7803.4801.camel@twins> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1225991487.7803.4801.camel@twins> User-Agent: Mutt/1.5.18 (2008-05-17) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 913 Lines: 29 On Thu, Nov 06, 2008 at 06:11:27PM +0100, Peter Zijlstra wrote: > On Thu, 2008-11-06 at 11:57 -0500, Rik van Riel wrote: > > Peter Zijlstra wrote: > > > > > The only real issue I can see is with linear volumes, but those are > > > stupid anyway - non of the gains but all the risks. > > > > Linear volumes may well be the most common ones. > > > > People start out with the filesystems at a certain size, > > increasing onto a second (new) disk later, when more space > > is required. > > Are they aware of how risky linear volumes are? I would discourage > anyone from using them. In what way are they risky? Cheers, Dave. -- Dave Chinner david@fromorbit.com -- 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/