linux-kernel - Re: [RFC] Notifier for Externally Mapped Memory (EMM)

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Message-ID: <47CE6D8D.9060306@qumranet.com>
Date:	Wed, 05 Mar 2008 11:53:17 +0200
From:	Avi Kivity <avi@...ranet.com>
To:	Robin Holt <holt@....com>
CC:	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Christoph Lameter <clameter@....com>,
	Andrea Arcangeli <andrea@...ranet.com>,
	Jack Steiner <steiner@....com>, Nick Piggin <npiggin@...e.de>,
	akpm@...ux-foundation.org, kvm-devel@...ts.sourceforge.net,
	general@...ts.openfabrics.org,
	Steve Wise <swise@...ngridcomputing.com>,
	Roland Dreier <rdreier@...co.com>,
	Kanoj Sarcar <kanojsarcar@...oo.com>,
	linux-kernel@...r.kernel.org, linux-mm@...ck.org,
	daniel.blueman@...drics.com
Subject: Re: [RFC] Notifier for Externally Mapped Memory (EMM)

Robin Holt wrote:
> On Wed, Mar 05, 2008 at 07:09:55AM +0200, Avi Kivity wrote:
>   
>> Isn't that out of the question for .25?
>>     
>
> I keep hearing this mantra.  What is so compelling about the .25
> release?  When seems to be more important than what.  While I understand
> product release cycles, etc. and can certainly agree with them. I would
> like to know with what I am being asked to agree.
>
>   

kvm gained the ability to swap in 2.6.25.  Without mmu notifiers, 
though, the guest can still easily pin all of its memory.

> That said, I agree we should probably finish getting the comments on
> Andrea's most recent patch, if any, cleared up and put that one in.
>   

Great.  Thanks.

-- 
Do not meddle in the internals of kernels, for they are subtle and quick to panic.

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