Messages in this thread | | | Date | Wed, 31 Oct 2012 21:20:19 +0800 | From | Shan Wei <> | Subject | Re: [PATCH 7/9] rcu: use this_cpu_ptr per-cpu helper instead of per_cpu_ptr(p, raw_smp_processor_id()) |
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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.
> > Thanx, Paul
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