linux-kernel - Re: [RFC PATCH 3/3] idle: store the idle state index in the struct rq

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Message-ID: <20140130153150.GD5002@laptop.programming.kicks-ass.net>
Date:	Thu, 30 Jan 2014 16:31:50 +0100
From:	Peter Zijlstra <peterz@...radead.org>
To:	Daniel Lezcano <daniel.lezcano@...aro.org>
Cc:	nicolas.pitre@...aro.org, mingo@...hat.com, tglx@...utronix.de,
	rjw@...ysocki.net, linux-kernel@...r.kernel.org,
	linux-pm@...r.kernel.org, linaro-kernel@...ts.linaro.org
Subject: Re: [RFC PATCH 3/3] idle: store the idle state index in the struct rq

On Thu, Jan 30, 2014 at 03:09:22PM +0100, Daniel Lezcano wrote:
> diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
> index 90aef084..130debf 100644
> --- a/kernel/sched/sched.h
> +++ b/kernel/sched/sched.h
> @@ -654,6 +654,9 @@ struct rq {
>  #endif
>  
>  	struct sched_avg avg;
> +#ifdef CONFIG_CPU_IDLE
> +	int idle_index;
> +#endif
>  };

So my 'problem' with this is that I've no ff'ing clue what the
idle_index is and what I can do with it.
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