From mboxrd@z Thu Jan 1 00:00:00 1970 From: Radim =?utf-8?B?S3LEjW3DocWZ?= Subject: Re: [PATCH] KVM: X86: MMU: no mmu_notifier_seq++ in kvm_age_hva Date: Thu, 29 Sep 2016 20:27:38 +0200 Message-ID: <20160929182738.GC13257@potion> References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: kvm@vger.kernel.org, pbonzini@redhat.com, andreslc@google.com, junaids@google.com To: Peter Feiner Return-path: Received: from mx1.redhat.com ([209.132.183.28]:42720 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S934616AbcI2S1m (ORCPT ); Thu, 29 Sep 2016 14:27:42 -0400 Content-Disposition: inline In-Reply-To: Sender: kvm-owner@vger.kernel.org List-ID: 2016-09-26 10:45-0700, Peter Feiner: > The MMU notifier sequence number keeps GPA->HPA mappings in sync when > GPA->HPA lookups are done outside of the MMU lock (e.g., in > tdp_page_fault). Since kvm_age_hva doesn't change GPA->HPA, it's > unnecessary to increment the sequence number. > > Signed-off-by: Peter Feiner > --- Applied to kvm/queue, thanks.