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Date:	Fri, 7 Nov 2008 11:41:31 +1100
From:	Dave Chinner <david@...morbit.com>
To:	Peter Zijlstra <peterz@...radead.org>
Cc:	Rik van Riel <riel@...hat.com>, Vivek Goyal <vgoyal@...hat.com>,
	linux-kernel@...r.kernel.org,
	containers@...ts.linux-foundation.org,
	virtualization@...ts.linux-foundation.org, jens.axboe@...cle.com,
	Hirokazu Takahashi <taka@...inux.co.jp>,
	Ryo Tsuruta <ryov@...inux.co.jp>,
	Andrea Righi <righi.andrea@...il.com>,
	Satoshi UCHIDA <s-uchida@...jp.nec.com>,
	fernando@....ntt.co.jp, balbir@...ux.vnet.ibm.com,
	Andrew Morton <akpm@...ux-foundation.org>, menage@...gle.com,
	ngupta@...gle.com, Jeff Moyer <jmoyer@...hat.com>
Subject: Re: [patch 0/4] [RFC] Another proportional weight IO controller

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@...morbit.com
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