Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753564Ab0DLRMq (ORCPT ); Mon, 12 Apr 2010 13:12:46 -0400 Received: from mx1.redhat.com ([209.132.183.28]:29116 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753265Ab0DLRMn (ORCPT ); Mon, 12 Apr 2010 13:12:43 -0400 Date: Mon, 12 Apr 2010 14:12:11 -0300 From: Marcelo Tosatti To: Xiao Guangrong Cc: Avi Kivity , KVM list , LKML Subject: Re: [PATCH 3/6] KVM MMU: optimize/cleanup for marking parent unsync Message-ID: <20100412171211.GC4976@amt.cnet> References: <4BC2D2E2.1030604@cn.fujitsu.com> <4BC2D390.7050708@cn.fujitsu.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4BC2D390.7050708@cn.fujitsu.com> User-Agent: Mutt/1.5.20 (2009-08-17) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 607 Lines: 17 On Mon, Apr 12, 2010 at 04:02:24PM +0800, Xiao Guangrong wrote: > - 'vcpu' is not used while mark parent unsync, so remove it > - if it has alread marked unsync, no need to walk it's parent > > Signed-off-by: Xiao Guangrong Xiao, Did you actually see this codepath as being performance sensitive? I'd prefer to not touch it. -- 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/