Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754001Ab1EKPim (ORCPT ); Wed, 11 May 2011 11:38:42 -0400 Received: from mx1.redhat.com ([209.132.183.28]:16163 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753610Ab1EKPiS (ORCPT ); Wed, 11 May 2011 11:38:18 -0400 Message-ID: <4DCA5DA7.9010201@redhat.com> Date: Wed, 11 May 2011 12:57:59 +0300 From: Avi Kivity User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.17) Gecko/20110428 Fedora/3.1.10-1.fc14 Lightning/1.0b3pre Thunderbird/3.1.10 MIME-Version: 1.0 To: Gleb Natapov CC: linux-kernel@vger.kernel.org, mtosatti@redhat.com, kvm@vger.kernel.org, paulmck@linux.vnet.ibm.com Subject: Re: [PATCH 2/2] KVM: make guest mode entry to be rcu quiescent state References: <1304515864-17105-1-git-send-email-gleb@redhat.com> <1304515864-17105-3-git-send-email-gleb@redhat.com> In-Reply-To: <1304515864-17105-3-git-send-email-gleb@redhat.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 747 Lines: 17 On 05/04/2011 04:31 PM, Gleb Natapov wrote: > KVM does not hold any references to rcu protected data when it switches > CPU into a guest mode. In fact switching to a guest mode is very similar > to exiting to userspase from rcu point of view. In addition CPU may stay > in a guest mode for quite a long time (up to one time slice). Lets treat > guest mode as quiescent state, just like we do with user-mode execution. Applied, thanks. -- error compiling committee.c: too many arguments to function -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/