linux-kernel - Re: [CFS Bandwidth Control v4 4/7] sched: unthrottle cfs_rq(s) who ran out of quota at period refresh

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Date:	Wed, 23 Feb 2011 13:23:38 +0100
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@...ux.vnet.ibm.com>,
	Balbir Singh <balbir@...ux.vnet.ibm.com>,
	Vaidyanathan Srinivasan <svaidy@...ux.vnet.ibm.com>,
	Gautham R Shenoy <ego@...ibm.com>,
	Srivatsa Vaddagiri <vatsa@...ibm.com>,
	Kamalesh Babulal <kamalesh@...ux.vnet.ibm.com>,
	Ingo Molnar <mingo@...e.hu>,
	Pavel Emelyanov <xemul@...nvz.org>,
	Herbert Poetzl <herbert@...hfloor.at>,
	Avi Kivity <avi@...hat.com>,
	Chris Friesen <cfriesen@...tel.com>,
	Nikhil Rao <ncrao@...gle.com>
Subject: Re: [CFS Bandwidth Control v4 4/7] sched: unthrottle cfs_rq(s) who
 ran out of quota at period refresh

On Tue, 2011-02-15 at 19:18 -0800, Paul Turner wrote:

> +static inline const struct cpumask *sched_bw_period_mask(void)
> +{
> +       return cpu_rq(smp_processor_id())->rd->span;
> +}

Some day I'm going to bite the bullet and merge part of cpusets into
this controller and have Balbir take the node part into the memcg thing
and then make (cpu||memcg) ^ cpuset

Feh.
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