From mboxrd@z Thu Jan  1 00:00:00 1970
From: Peter Zijlstra <peterz@infradead.org>
Subject: Re: [PATCH v3 3/9] KVM-HDR: KVM Steal time implementation
Date: Thu, 30 Jun 2011 23:54:35 +0200
Message-ID: <1309470875.12449.611.camel@twins>
References: <1309361388-30163-1-git-send-email-glommer@redhat.com>
	 <1309361388-30163-4-git-send-email-glommer@redhat.com>
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Cc: kvm@vger.kernel.org, linux-kernel@vger.kernel.org,
	Rik van Riel <riel@redhat.com>,
	Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>,
	Avi Kivity <avi@redhat.com>,
	Anthony Liguori <aliguori@us.ibm.com>,
	Eric B Munson <emunson@mgebm.net>
To: Glauber Costa <glommer@redhat.com>
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On Wed, 2011-06-29 at 11:29 -0400, Glauber Costa wrote:
> +               version: guest has to check version before and after grabbing
> +               time information and check that they are both equal and even.
> +               An odd version indicates an in-progress update. 

That's generally called a sequence count.