Messages in this thread | | | Date | Fri, 22 Feb 2013 09:55:30 -0800 | From | Jacob Pan <> | Subject | Re: [PATCH 2/2][RFC] time : set broadcast irq affinity |
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On Thu, 21 Feb 2013 23:01:23 +0100 Daniel Lezcano <daniel.lezcano@linaro.org> wrote:
> +/* > + * Set broadcast interrupt affinity > + */ > +static void tick_broadcast_set_affinity(struct clock_event_device > *bc, int cpu) +{ > + struct cpumask cpumask; > + > + if (!(bc->features & CLOCK_EVT_FEAT_DYNIRQ)) > + return; > + > + cpumask_clear(&cpumask); > + cpumask_set_cpu(cpu, &cpumask); > + irq_set_affinity(bc->irq, &cpumask); would it be more efficient to keep track of the current bc->irq affinity via cpumask then set it only if it is different?
-- Thanks,
Jacob
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