Re: [PATCH net-next V6 1/2] cpumask: Utility function to set n'th cpu - local cpu first

[David Miller]

From: Amir Vadai <amirv@xxxxxxxxxxxx>
Date: Sun, 25 May 2014 17:47:26 +0300

> This function sets the n'th cpu - local cpu's first.
> For example: in a 16 cores server with even cpu's local, will get the
> following values:
> cpumask_set_cpu_local_first(0, numa, cpumask) => cpu 0 is set
> cpumask_set_cpu_local_first(1, numa, cpumask) => cpu 2 is set
> ...
> cpumask_set_cpu_local_first(7, numa, cpumask) => cpu 14 is set
> cpumask_set_cpu_local_first(8, numa, cpumask) => cpu 1 is set
> cpumask_set_cpu_local_first(9, numa, cpumask) => cpu 3 is set
> ...
> cpumask_set_cpu_local_first(15, numa, cpumask) => cpu 15 is set
> 
> Curently this function will be used by multi queue networking devices to
> calculate the irq affinity mask, such that as many local cpu's as
> possible will be utilized to handle the mq device irq's.
> 
> Signed-off-by: Amir Vadai <amirv@xxxxxxxxxxxx>

I would like someone who cares about these cpumask interfaces to provide
a review.
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