linux-kernel - Re: [PATCH v4 10/12] Handle async PF in non preemptable context

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Message-ID: <4C35529F.4060204@redhat.com>
Date:	Thu, 08 Jul 2010 00:22:55 -0400
From:	Rik van Riel <riel@...hat.com>
To:	Gleb Natapov <gleb@...hat.com>
CC:	kvm@...r.kernel.org, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org, avi@...hat.com, mingo@...e.hu,
	a.p.zijlstra@...llo.nl, tglx@...utronix.de, hpa@...or.com,
	cl@...ux-foundation.org, mtosatti@...hat.com
Subject: Re: [PATCH v4 10/12] Handle async PF in non preemptable context

On 07/06/2010 12:24 PM, Gleb Natapov wrote:
> If async page fault is received by idle task or when preemp_count is
> not zero guest cannot reschedule, so do sti; hlt and wait for page to be
> ready. vcpu can still process interrupts while it waits for the page to
> be ready.
>
> Signed-off-by: Gleb Natapov<gleb@...hat.com>

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

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