linux-kernel - Re: [RFC patch 2/5] smpboot: Provide infrastructure for percpu hotplug threads

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Date:	Thu, 14 Jun 2012 10:38:01 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	Thomas Gleixner <tglx@...utronix.de>
Cc:	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
	LKML <linux-kernel@...r.kernel.org>,
	Ingo Molnar <mingo@...nel.org>,
	"Srivatsa S. Bhat" <srivatsa.bhat@...ux.vnet.ibm.com>,
	Rusty Russell <rusty@...tcorp.com.au>,
	Tejun Heo <tj@...nel.org>
Subject: Re: [RFC patch 2/5] smpboot: Provide infrastructure for percpu
 hotplug threads

On Thu, 2012-06-14 at 10:37 +0200, Thomas Gleixner wrote:
> On Thu, 14 Jun 2012, Peter Zijlstra wrote:
> 
> > On Wed, 2012-06-13 at 20:56 +0200, Thomas Gleixner wrote:
> > > If it's just a spurious wakeup then it goes back to sleep right away
> > > as nothing cleared the park bit. 
> > 
> > Your spurious wakeup will have destroyed the binding though. So you need
> > to be careful.
> 
> We explicitely rebind it on unpark().

OK, no worries then.
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