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

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Message-ID: <alpine.LFD.2.02.1206141059290.3086@ionos>
Date:	Thu, 14 Jun 2012 10:59:58 +0200 (CEST)
From:	Thomas Gleixner <tglx@...utronix.de>
To:	Namhyung Kim <namhyung@...nel.org>
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, Thomas Gleixner wrote:
> On Thu, 14 Jun 2012, Namhyung Kim wrote:
> > I wonder whether it also needs to unpark @k. Isn't it possible to stop a
> > parked thread?
> 
> Right, it should be possible and it is. Clearing the park flag is not
> strictly necessary, but yes we should do that.

And it's necessary as parkme() wont return otherwise :)
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