From: Paul E. McKenney <paul.mckenney@linaro.org>
Date: Tue, 22 Nov 2011 22:58:03 +0000 (-0800)
Subject: rcu: Add tracing for RCU_FAST_NO_HZ
X-Git-Tag: v3.3-rc1~193^2^2~21
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=433cdddcd9ac5558068edd7f8d4707a70f7710f5;p=pandora-kernel.git

rcu: Add tracing for RCU_FAST_NO_HZ

This commit adds trace_rcu_prep_idle(), which is invoked from
rcu_prepare_for_idle() and rcu_wake_cpu() to trace attempts on
the part of RCU to force CPUs into dyntick-idle mode.

Signed-off-by: Paul E. McKenney <paul.mckenney@linaro.org>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
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