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Subject: Re: linux-next 20111025: warnings in
 rcu_idle_exit_common()/rcu_idle_enter_common()
From: Peter Zijlstra <peterz@infradead.org>
To: paulmck@linux.vnet.ibm.com
Cc: Wu Fengguang <fengguang.wu@intel.com>,
        Steven Rostedt <rostedt@goodmis.org>,
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        Frederic Weisbecker <fweisbec@gmail.com>
Date: Thu, 10 Nov 2011 17:35:24 +0100
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On Mon, 2011-10-31 at 15:14 -0700, Paul E. McKenney wrote:
> Peter, I have been using "idle_cpu(smp_processor_id()))" to verify that
> I really am running in the context of the idle task when RCU believes
> that the current CPU has gone idle. 

I think this is sorted since, but just to clarify idle_cpu() was meant
to test if the cpu was idle, this is something different from actually
running the idle thread.