linux-kernel - RE: [PATCH v2 2/2] hyperv: Implement Time Synchronization using host time sample

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Message-ID: <CD2CABCB2C0A0D4682C5F8AD840141540C171E@HKXPRD3002MB006.064d.mgd.msft.net>
Date:	Wed, 15 Oct 2014 09:21:33 +0000
From:	Thomas Shao <huishao@...rosoft.com>
To:	Richard Cochran <richardcochran@...il.com>
CC:	"tglx@...utronix.de" <tglx@...utronix.de>,
	"gregkh@...uxfoundation.org" <gregkh@...uxfoundation.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"devel@...uxdriverproject.org" <devel@...uxdriverproject.org>,
	"olaf@...fle.de" <olaf@...fle.de>,
	"apw@...onical.com" <apw@...onical.com>,
	"jasowang@...hat.com" <jasowang@...hat.com>,
	KY Srinivasan <kys@...rosoft.com>
Subject: RE: [PATCH v2 2/2] hyperv: Implement Time Synchronization using
 host time sample


> -----Original Message-----
> From: Richard Cochran [mailto:richardcochran@...il.com]
> Sent: Wednesday, October 15, 2014 5:18 PM
> To: Thomas Shao
> Cc: tglx@...utronix.de; gregkh@...uxfoundation.org; linux-
> kernel@...r.kernel.org; devel@...uxdriverproject.org; olaf@...fle.de;
> apw@...onical.com; jasowang@...hat.com; KY Srinivasan
> Subject: Re: [PATCH v2 2/2] hyperv: Implement Time Synchronization using
> host time sample
> 
> On Wed, Oct 15, 2014 at 01:40:04AM -0700, Thomas Shao wrote:
> > In current hyper-v time sync service,it only gets the initial clock
> > time from the host. It didn't process the following time samples. This
> > change introduced a module parameter called host_time_sync. If it is
> > set to true, the guest will periodically sychronize it's time with the
> > host clock using host time sample. By default it is disabled, because
> > we still recommend user to configure NTP for time synchronization.
> >
> > Signed-off-by: Thomas Shao <huishao@...rosoft.com>
> > Reviewed-by: K. Y. Srinivasan <kys@...rosoft.com>
> > ---
> 
> Um, what changed in V2?

In V2, I address all the Dan's comments.

> 
> Thanks,
> Richard
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