linux-kernel - Re: [patch 1/2] add ALL_CPUS option to stop_machine

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Date:	Mon, 3 Mar 2008 15:12:50 +1100
From:	Rusty Russell <rusty@...tcorp.com.au>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	Max Krasnyanskiy <maxk@...lcomm.com>,
	Jason Baron <jbaron@...hat.com>,
	Mathieu Desnoyers <mathieu.desnoyers@...ymtl.ca>,
	akpm@...ux-foundation.org, linux-kernel@...r.kernel.org,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>
Subject: Re: [patch 1/2] add ALL_CPUS option to stop_machine_run()

On Saturday 01 March 2008 06:15:59 Ingo Molnar wrote:
> Right now the answer is: "if you want to do hard RT then avoid doing
> things like loading modules". (which you should avoid while doing
> hard-RT anyway)

Hi Ingo,

     I agree, but Max is doing a service by making more people aware of the 
limitations of stop_machine so they don't sprinkle it around like candy :)

I think the module load case can be reasonably fixed; it's in my backlog now.

Cheers,
Rusty.
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