linux-kernel - Re: [PATCH RESEND] smp: make wake up idle cpus more generic

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Date:	Fri, 1 Apr 2016 09:07:58 +0200
From:	Ingo Molnar <mingo@...nel.org>
To:	Lianwei Wang <lianwei.wang@...il.com>
Cc:	rjw@...ysocki.net, daniel.lezcano@...aro.org,
	linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org,
	kbuild-all@...org, Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Thomas Gleixner <tglx@...utronix.de>
Subject: Re: [PATCH RESEND] smp: make wake up idle cpus more generic


* Lianwei Wang <lianwei.wang@...il.com> wrote:

> The wake_up_all_idle_cpus API always wake up all the online
> cpus, but sometimes we only want to wake up a set of cpus.
> 
> Use a generic function to wake up a group of cpus that is
> specified by the cpumask parameter. This generic API can
> benefit to the cases that only need to wake up a set of
> cpus.

What is the new user of this new argument to the wake-up call?

Thanks,

	Ingo