linux-kernel - Re: [RFC PATCH 2/4] sched: Adding gang scheduling infrastrucure

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Message-ID: <1324313499.24621.18.camel@twins>
Date:	Mon, 19 Dec 2011 17:51:39 +0100
From:	Peter Zijlstra <peterz@...radead.org>
To:	"Nikunj A. Dadhania" <nikunj@...ux.vnet.ibm.com>
Cc:	mingo@...e.hu, linux-kernel@...r.kernel.org,
	vatsa@...ux.vnet.ibm.com, bharata@...ux.vnet.ibm.com
Subject: Re: [RFC PATCH 2/4] sched: Adding gang scheduling infrastrucure

On Mon, 2011-12-19 at 16:51 +0100, Peter Zijlstra wrote:
> > +                     smp_call_function_many(rq->gang_cpumask,
> > +                                     gang_sched_member, tg, 0);
> 
> See this is just not going to happen. 

Furthermore its racy against task_group destruction.
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