From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751930Ab0GHEXZ (ORCPT ); Thu, 8 Jul 2010 00:23:25 -0400 Received: from mx1.redhat.com ([209.132.183.28]:11198 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750722Ab0GHEXY (ORCPT ); Thu, 8 Jul 2010 00:23:24 -0400 Message-ID: <4C35529F.4060204@redhat.com> Date: Thu, 08 Jul 2010 00:22:55 -0400 From: Rik van Riel User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.9) Gecko/20100430 Fedora/3.0.4-2.fc12 Lightning/1.0b2pre Thunderbird/3.0.4 MIME-Version: 1.0 To: Gleb Natapov CC: kvm@vger.kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, avi@redhat.com, mingo@elte.hu, a.p.zijlstra@chello.nl, tglx@linutronix.de, hpa@zytor.com, cl@linux-foundation.org, mtosatti@redhat.com Subject: Re: [PATCH v4 10/12] Handle async PF in non preemptable context References: <1278433500-29884-1-git-send-email-gleb@redhat.com> <1278433500-29884-11-git-send-email-gleb@redhat.com> In-Reply-To: <1278433500-29884-11-git-send-email-gleb@redhat.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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 Acked-by: Rik van Riel -- All rights reversed