linux-kernel - Re: [patch 5/6] Guest page hinting: minor fault optimization.

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Message-ID: <49D38967.8020706@redhat.com>
Date:	Wed, 01 Apr 2009 11:33:59 -0400
From:	Rik van Riel <riel@...hat.com>
To:	Martin Schwidefsky <schwidefsky@...ibm.com>
CC:	linux-mm@...ck.org, linux-kernel@...r.kernel.org,
	virtualization@...ts.osdl.org, frankeh@...son.ibm.com,
	akpm@...l.org, nickpiggin@...oo.com.au, hugh@...itas.com
Subject: Re: [patch 5/6] Guest page hinting: minor fault optimization.

Martin Schwidefsky wrote:
> From: Martin Schwidefsky <schwidefsky@...ibm.com>
> From: Hubertus Franke <frankeh@...son.ibm.com>
> From: Himanshu Raj
> 
> On of the challenges of the guest page hinting scheme is the cost for
> the state transitions. If the cost gets too high the whole concept of
> page state information is in question. Therefore it is important to
> avoid the state transitions when possible. 

> Signed-off-by: Martin Schwidefsky <schwidefsky@...ibm.com>

Acked-by: Rik van Riel <riel@...hat.com>

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