linux-kernel - Re: [patch 07/15] sched: expire invalid runtime

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Message-ID: <1305543918.2466.4152.camel@twins>
Date:	Mon, 16 May 2011 13:05:18 +0200
From:	Peter Zijlstra <a.p.zijlstra@...llo.nl>
To:	Paul Turner <pjt@...gle.com>
Cc:	linux-kernel@...r.kernel.org,
	Bharata B Rao <bharata@...ux.vnet.ibm.com>,
	Dhaval Giani <dhaval.giani@...il.com>,
	Balbir Singh <balbir@...ux.vnet.ibm.com>,
	Vaidyanathan Srinivasan <svaidy@...ux.vnet.ibm.com>,
	Srivatsa Vaddagiri <vatsa@...ibm.com>,
	Kamalesh Babulal <kamalesh@...ux.vnet.ibm.com>,
	Ingo Molnar <mingo@...e.hu>, Pavel Emelyanov <xemul@...nvz.org>
Subject: Re: [patch 07/15] sched: expire invalid runtime

On Tue, 2011-05-03 at 02:28 -0700, Paul Turner wrote:
> +       cfs_rq->runtime_expires = max(cfs_rq->runtime_expires, expires);

That doesn't work well when the clock wraps.
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