linux-kernel - Re: [PATCH 0/4] partitions/ide: improve Host Protected Area handling

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Message-ID: <87f94c370906010602o2266c4a7s4fca46cf24cea004@mail.gmail.com>
Date:	Mon, 1 Jun 2009 09:02:11 -0400
From:	Greg Freemyer <greg.freemyer@...il.com>
To:	Bartlomiej Zolnierkiewicz <bzolnier@...il.com>
Cc:	"Andries E. Brouwer" <Andries.Brouwer@....nl>,
	linux-ide@...r.kernel.org, linux-kernel@...r.kernel.org,
	Robert Hancock <hancockrwd@...il.com>,
	Al Viro <viro@...iv.linux.org.uk>,
	Frans Pop <elendil@...net.nl>
Subject: Re: [PATCH 0/4] partitions/ide: improve Host Protected Area handling

On Sun, May 31, 2009 at 11:34 AM, Bartlomiej Zolnierkiewicz
<bzolnier@...il.com> wrote:
> 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.

And to the best of my knowledge user-space leaves it entirely to the kernel.

ie. There is no opensource Linux solution I know of.

Greg
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