Re: [PATCH 7/9] rcu: use this_cpu_ptr per-cpu helper instead ofper_cpu_ptr(p, raw_smp_processor_id())

[Paul E. McKenney]

On Wed, Oct 31, 2012 at 09:20:19PM +0800, Shan Wei wrote:
> Paul E. McKenney said, at 2012/10/31 19:51:
> > 
> > The first uses smp_processor_id(), which will complain if
> > force_quiescent_state() is called with preemption disabled, which it
> > sometimes is.
> > 
> > So what am I missing here?
> 
> Hi Paul
> 
> this patch is not right for CONFIG_DEBUG_PREEMPT case.
> __this_cpu_ptr is ok which do not check for preemption context.

Ah, got it.  Please feel free to submit an updated patch.

							Thanx, Paul

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