linux-kernel - Re: [RFCv5 PATCH 20/46] sched: Relocated get_cpu

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Message-ID: <20150812105923.GX19282@twins.programming.kicks-ass.net>
Date:	Wed, 12 Aug 2015 12:59:23 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	Morten Rasmussen <morten.rasmussen@....com>
Cc:	mingo@...hat.com, vincent.guittot@...aro.org,
	daniel.lezcano@...aro.org,
	Dietmar Eggemann <Dietmar.Eggemann@....com>,
	yuyang.du@...el.com, mturquette@...libre.com, rjw@...ysocki.net,
	Juri Lelli <Juri.Lelli@....com>, sgurrappadi@...dia.com,
	pang.xunlei@....com.cn, linux-kernel@...r.kernel.org,
	linux-pm@...r.kernel.org
Subject: Re: [RFCv5 PATCH 20/46] sched: Relocated get_cpu_usage() and change
 return type

On Tue, Jul 07, 2015 at 07:24:03PM +0100, Morten Rasmussen wrote:
> +static unsigned long get_cpu_usage(int cpu)
> +{
> +	int sum;
> +	unsigned long usage = cpu_rq(cpu)->cfs.utilization_load_avg;
> +	unsigned long blocked = cpu_rq(cpu)->cfs.utilization_blocked_avg;
> +	unsigned long capacity_orig = capacity_orig_of(cpu);
> +
> +	sum = usage + blocked;
> +
> +	if (sum >= capacity_orig)
> +		return capacity_orig;
> +
> +	return sum;
> +}

Should sum then not also be unsigned long?
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