linux-kernel - Re: [ofa-general] Re: [patch 0/6] MMU Notifiers V6

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Message-ID: <Pine.LNX.4.64.0802081634070.5298@schroedinger.engr.sgi.com>
Date:	Fri, 8 Feb 2008 16:36:16 -0800 (PST)
From:	Christoph Lameter <clameter@....com>
To:	Roland Dreier <rdreier@...co.com>
cc:	andrea@...ranet.com, a.p.zijlstra@...llo.nl, izike@...ranet.com,
	steiner@....com, linux-kernel@...r.kernel.org, avi@...ranet.com,
	linux-mm@...ck.org, daniel.blueman@...drics.com,
	Robin Holt <holt@....com>, general@...ts.openfabrics.org,
	Andrew Morton <akpm@...ux-foundation.org>,
	kvm-devel@...ts.sourceforge.net, Rik van Riel <riel@...hat.com>
Subject: Re: [ofa-general] Re: [patch 0/6] MMU Notifiers V6

On Fri, 8 Feb 2008, Roland Dreier wrote:

> That would of course work -- dumb adapters would just always fail,
> which might be inefficient.

Hmmmm.. that means we need something that actually pins pages for good so 
that the VM can avoid reclaiming it and so that page migration can avoid 
trying to migrate them. Something like yet another page flag.

Ccing Rik.

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