Re: [PATCH] fix rcu vs hotplug race

[Dhaval Giani]

On Tue, Jul 01, 2008 at 08:16:01AM +0200, Ingo Molnar wrote:
> 
> * Gautham R Shenoy <ego@xxxxxxxxxx> wrote:
> 
> > So, it's the design of stop_machine() that's preventing someone from 
> > updating the cpu_online_map while force_quiescent_state() is 
> > performing the cpu_is_online() check. Becase we always call 
> > force_quiescent_state() with irqs disabled :)
> 
> Paul, do you concur? I'll apply the commit in the form below to 
> tip/core/urgent if Paul agrees.
> 
> 	Ingo

Ingo,

I believe Gautham's fix at http://lkml.org/lkml/2008/6/27/9 is better
and also explains it better.

Thanks.
-- 
regards,
Dhaval
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