linux-kernel - Re: [RFC][PATCH v5 07/14] sched: get CPU's activity statistic

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Message-ID: <20131112103610.GG4971@laptop.programming.kicks-ass.net>
Date:	Tue, 12 Nov 2013 11:36:10 +0100
From:	Peter Zijlstra <peterz@...radead.org>
To:	Vincent Guittot <vincent.guittot@...aro.org>
Cc:	linux-kernel@...r.kernel.org, mingo@...nel.org, pjt@...gle.com,
	Morten.Rasmussen@....com, cmetcalf@...era.com, tony.luck@...el.com,
	alex.shi@...el.com, preeti@...ux.vnet.ibm.com,
	linaro-kernel@...ts.linaro.org, rjw@...k.pl,
	paulmck@...ux.vnet.ibm.com, corbet@....net, tglx@...utronix.de,
	len.brown@...el.com, arjan@...ux.intel.com,
	amit.kucheria@...aro.org, l.majewski@...sung.com
Subject: Re: [RFC][PATCH v5 07/14] sched: get CPU's activity statistic

On Fri, Oct 18, 2013 at 01:52:20PM +0200, Vincent Guittot wrote:
> diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
> index db9b871..7e26f65 100644
> --- a/kernel/sched/fair.c
> +++ b/kernel/sched/fair.c
> @@ -179,6 +179,11 @@ void sched_init_granularity(void)
>  }
>  
>  #ifdef CONFIG_SMP
> +static unsigned long available_of(int cpu)
> +{
> +	return cpu_rq(cpu)->cpu_available;
> +}
> +
>  #ifdef CONFIG_SCHED_PACKING_TASKS
>  /*
>   * Save the id of the optimal CPU that should be used to pack small tasks

This hunk wants to be in the previous patch, as I'm fairly sure I saw
this function used there.
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