Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933755AbaLCAOL (ORCPT ); Tue, 2 Dec 2014 19:14:11 -0500 Received: from lvnode1.ve.v10networks.ca ([209.141.36.111]:46031 "EHLO lvnode1.ve.v10networks.ca" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933740AbaLCAOH convert rfc822-to-8bit (ORCPT ); Tue, 2 Dec 2014 19:14:07 -0500 Content-class: urn:content-classes:message Subject: RE: [PATCH 1/1] X86: Mark the Hyper-V clocksource as being continuous MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 8BIT Date: Tue, 2 Dec 2014 16:14:05 -0800 Message-ID: In-Reply-To: X-MS-Has-Attach: X-MimeOLE: Produced By Microsoft Exchange V6.5 X-MS-TNEF-Correlator: Thread-Topic: [PATCH 1/1] X86: Mark the Hyper-V clocksource as being continuous Thread-Index: AQHQDos/PK3eN3W9k0ulFthqgd8G05x8+ngAgAABYnCAAAKZ4A== References: <1417568621-23143-1-git-send-email-kys@microsoft.com> From: "Jeff Leung" To: "KY Srinivasan" , , , , , , , , , Cc: Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > We have had the Hyper-V clocksource for sometime now and this patch just marks this > clocksource as being continuous. Nothing has changed with regards to timesynch. Alright, that cleared up that question. Gleaning around from the source tree, I don't seem to comprehend what changes are being made when the clock source has the flag CLOCK_SOURCE_IS_CONTINUOUS marked. > Regards, > > K. Y > > > > > > -----Original Message----- > > > From: linux-kernel-owner@vger.kernel.org > > [mailto:linux-kernel-owner@vger.kernel.org] > > > On Behalf Of K. Y. Srinivasan > > > Sent: Tuesday, December 2, 2014 17:04 > > > To: x86@kernel.org; gregkh@linuxfoundation.org; > > linux-kernel@vger.kernel.org; > > > devel@linuxdriverproject.org; olaf@aepfle.de; apw@canonical.com; > > > jasowang@redhat.com; tglx@linutronix.de; hpa@zytor.com > > > Cc: K. Y. Srinivasan; stable@vger.kernel.org > > > Subject: [PATCH 1/1] X86: Mark the Hyper-V clocksource as being > > continuous > > > > > > The clocksource based on Hyper-V per-partition reference count MSR > > > is > > continuous. Mark > > > it accordingly. > > > > > > Signed-off-by: K. Y. Srinivasan > > > cc: stable@vger.kernel.org > > > --- > > > arch/x86/kernel/cpu/mshyperv.c | 1 + > > > 1 files changed, 1 insertions(+), 0 deletions(-) > > > > > > diff --git a/arch/x86/kernel/cpu/mshyperv.c > > b/arch/x86/kernel/cpu/mshyperv.c index > > > a450373..939155f 100644 > > > --- a/arch/x86/kernel/cpu/mshyperv.c > > > +++ b/arch/x86/kernel/cpu/mshyperv.c > > > @@ -107,6 +107,7 @@ static struct clocksource hyperv_cs = { > > > .rating = 400, /* use this when running on Hyperv*/ > > > .read = read_hv_clock, > > > .mask = CLOCKSOURCE_MASK(64), > > > + .flags = CLOCK_SOURCE_IS_CONTINUOUS, > > > }; > > > > > > static void __init ms_hyperv_init_platform(void) > > > -- > > > 1.7.4.1 > > > > > > -- > > > 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/ > -- 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/