Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753155AbZIXDbj (ORCPT ); Wed, 23 Sep 2009 23:31:39 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752936AbZIXDbh (ORCPT ); Wed, 23 Sep 2009 23:31:37 -0400 Received: from mx1.redhat.com ([209.132.183.28]:59210 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752631AbZIXDbb (ORCPT ); Wed, 23 Sep 2009 23:31:31 -0400 From: Zachary Amsden To: kvm@vger.kernel.org Cc: linux-kernel@vger.kernel.org, Zachary Amsden , Avi Kivity , Marcelo Tosatti Subject: [PATCH: kvm 6/6] Math is hard; let's do some cooking. Date: Wed, 23 Sep 2009 17:29:05 -1000 Message-Id: <1253762945-5750-6-git-send-email-zamsden@redhat.com> In-Reply-To: <1253762945-5750-5-git-send-email-zamsden@redhat.com> References: <1253762945-5750-1-git-send-email-zamsden@redhat.com> <1253762945-5750-2-git-send-email-zamsden@redhat.com> <1253762945-5750-3-git-send-email-zamsden@redhat.com> <1253762945-5750-4-git-send-email-zamsden@redhat.com> <1253762945-5750-5-git-send-email-zamsden@redhat.com> Organization: Frobozz Magic Timekeeping Company Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1259 Lines: 37 CPU frequency change callback provides new TSC frequency for us, and in the same units (kHz), so there is no reason to do any math. Signed-off-by: Zachary Amsden --- arch/x86/kvm/x86.c | 5 +---- 1 files changed, 1 insertions(+), 4 deletions(-) diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index f1470ce..c849f8f 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -3083,15 +3083,12 @@ static int kvmclock_cpufreq_notifier(struct notifier_block *nb, unsigned long va struct kvm *kvm; struct kvm_vcpu *vcpu; int i, send_ipi = 0; - unsigned long old_khz; if (val == CPUFREQ_PRECHANGE && freq->old > freq->new) return 0; if (val == CPUFREQ_POSTCHANGE && freq->old < freq->new) return 0; - old_khz = per_cpu(cpu_tsc_khz, freq->cpu); - per_cpu(cpu_tsc_khz, freq->cpu) = cpufreq_scale(old_khz, freq->old, - freq->new); + per_cpu(cpu_tsc_khz, freq->cpu) = freq->new; spin_lock(&kvm_lock); list_for_each_entry(kvm, &vm_list, vm_list) { -- 1.6.4.4 -- 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/