From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail172.messagelabs.com (mail172.messagelabs.com [216.82.254.3]) by kanga.kvack.org (Postfix) with SMTP id 5A7716B0246 for ; Thu, 8 Jul 2010 00:23:16 -0400 (EDT) Message-ID: <4C35529F.4060204@redhat.com> Date: Thu, 08 Jul 2010 00:22:55 -0400 From: Rik van Riel MIME-Version: 1.0 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: owner-linux-mm@kvack.org 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 List-ID: 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 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org