From: Vincent Guittot <vincent.guittot@linaro.org>
Date: Mon, 22 Oct 2012 23:21:49 +0000 (+0200)
Subject: PM / OPP: RCU reclaim
X-Git-Tag: omap-for-v3.8/fixes-for-merge-window-v4-signed~88^2~10^2~3
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=dde8437d06560366d8988c92b5774039ec703864;p=pandora-kernel.git

PM / OPP: RCU reclaim

synchronize_rcu() blocks the caller of opp_enable/disbale
for a complete grace period. This blocking duration prevents
any intensive use of the functions. Replace synchronize_rcu()
by call_rcu() which will call our function for freeing the old
opp element.

The duration of opp_enable() and opp_disable() will be no more
dependant of the grace period.

Signed-off-by: Vincent Guittot <vincent.guittot@linaro.org>
Reviewed-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---

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