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Subject: Re: [PATCH 2/2] rcu: simplify the usage of percpu data
From: Peter Zijlstra <peterz@infradead.org>
To: Lai Jiangshan <laijs@cn.fujitsu.com>
Cc: Tejun Heo <tj@kernel.org>, "Paul E.McKenney" <paulmck@linux.vnet.ibm.com>,
       Ingo Molnar <mingo@elte.hu>, LKML <linux-kernel@vger.kernel.org>
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Date: Wed, 23 Jun 2010 16:01:17 +0200
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On Wed, 2010-06-23 at 18:04 +0800, Lai Jiangshan wrote:
> +       struct rcu_data *rdp = per_cpu_ptr(rsp->rda, smp_processor_id());

 this_cpu_ptr(rsp->rda);