From 51d0f16d49f6a99189e80c50e18a12325664ef41 Mon Sep 17 00:00:00 2001
From: Michael Wang <wangyun@linux.vnet.ibm.com>
Date: Thu, 20 Sep 2012 08:51:06 +0800
Subject: [PATCH] rcu: Optimize the 'rcu_pending' for RCU trace

This patch implements the new 'rcu_pending' interface under each rsp
directory, by using the 'CPU units sequence reading', thus avoiding loss
of tracing data.

Signed-off-by: Michael Wang <wangyun@linux.vnet.ibm.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
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