linux-kernel - Re: [RFC patch 1/5] kthread: Implement park/unpark facility

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Message-ID: <alpine.LFD.2.02.1206142213070.3086@ionos>
Date:	Thu, 14 Jun 2012 22:13:51 +0200 (CEST)
From:	Thomas Gleixner <tglx@...utronix.de>
To:	Silas Boyd-Wickizer <sbw@....edu>
cc:	LKML <linux-kernel@...r.kernel.org>,
	Peter Zijlstra <peterz@...radead.org>,
	Ingo Molnar <mingo@...nel.org>,
	"Srivatsa S. Bhat" <srivatsa.bhat@...ux.vnet.ibm.com>,
	Rusty Russell <rusty@...tcorp.com.au>,
	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
	Tejun Heo <tj@...nel.org>
Subject: Re: [RFC patch 1/5] kthread: Implement park/unpark facility

on Thu, 14 Jun 2012, Silas Boyd-Wickizer wrote:

> Hello,
> 
> I've taken a stab at converting stop_machine to use kthread_park and
> kthread_unpark.  I don't think stop_machine can use
> smpboot_park_threads (in their current implementation) because, among
> other reasons, _cpu_down calls __stop_machine after parking the
> stopper threads via smpboot_park_threads.

Yes, I know. That's why I haven't touched it yet. That needs some
further modifications down the road.

Thanks,

	tglx
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