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From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
To: "Andries E. Brouwer" <Andries.Brouwer@cwi.nl>
Subject: Re: [PATCH 0/4] partitions/ide: improve Host Protected Area handling
Date: Sun, 31 May 2009 17:34:54 +0200
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Cc: linux-ide@vger.kernel.org, linux-kernel@vger.kernel.org,
       Robert Hancock <hancockrwd@gmail.com>,
       Al Viro <viro@zeniv.linux.org.uk>, Frans Pop <elendil@planet.nl>
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On Sunday 31 May 2009 17:24:03 Andries E. Brouwer wrote:
> On Sun, May 31, 2009 at 04:39:11PM +0200, Bartlomiej Zolnierkiewicz wrote:
> 
> [HPA stuff deleted]
> 
> Hi Bartlomiej,
> 
> Apart from HPA one also has DCO, which functions rather similarly.
> (I have not checked whether the current kernel knows anything about DCO.)
> Have you thought about DCO?
> Probably the kernel should by default not touch any such setting.
> Maybe it should be reported?
> A user space utility might change this setting - thus a disk can change size.

We leave DCO handling entirely to user-space currently.