linux-kernel - Re: [PATCH v10 6/7] sched: Provide runnable_load_avg back to cfs

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Message-ID: <20150726194537.GD28512@intel.com>
Date:	Mon, 27 Jul 2015 03:45:37 +0800
From:	Yuyang Du <yuyang.du@...el.com>
To:	Boqun Feng <boqun.feng@...il.com>
Cc:	mingo@...nel.org, peterz@...radead.org,
	linux-kernel@...r.kernel.org, pjt@...gle.com, bsegall@...gle.com,
	morten.rasmussen@....com, vincent.guittot@...aro.org,
	dietmar.eggemann@....com, umgwanakikbuti@...il.com,
	len.brown@...el.com, rafael.j.wysocki@...el.com,
	arjan@...ux.intel.com, fengguang.wu@...el.com
Subject: Re: [PATCH v10 6/7] sched: Provide runnable_load_avg back to cfs_rq

On Wed, Jul 22, 2015 at 10:19:54AM +0800, Boqun Feng wrote:
> 
> > +/* Remove the runnable load generated by se from cfs_rq's runnable load average */
> > +static inline void
> > +dequeue_entity_load_avg(struct cfs_rq *cfs_rq, struct sched_entity *se)
> > +{
> > +	update_load_avg(se, 1);
> > +
> 
> I think we need an update_cfs_rq_load_avg() here? Because the
> runnable_load_avg may not be up to date when dequeue_entity_load_avg()
> is called, right?

Not in update_load_avg()?
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