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Re: [RFCv5 PATCH 20/46] sched: Relocated get_cpu_usage() and change return type

From Peter Zijlstra <peterz@infradead.org>
Newsgroups linux.kernel
Subject Re: [RFCv5 PATCH 20/46] sched: Relocated get_cpu_usage() and change return type
Date 2015-08-12 13:00 +0200
Message-ID <pWBVf-28z-3@gated-at.bofh.it> (permalink)
References <pJFN0-Ef-15@gated-at.bofh.it> <pJFN2-Ef-71@gated-at.bofh.it>
Organization linux.* mail to news gateway

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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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Re: [RFCv5 PATCH 20/46] sched: Relocated get_cpu_usage() and change  return type Peter Zijlstra <peterz@infradead.org> - 2015-08-12 13:00 +0200
  Re: [RFCv5 PATCH 20/46] sched: Relocated get_cpu_usage() and change  return type Morten Rasmussen <morten.rasmussen@arm.com> - 2015-08-12 16:40 +0200

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