From: Paul E. McKenney <paul.mckenney@linaro.org>
Date: Mon, 11 Feb 2013 04:48:58 +0000 (-0800)
Subject: rcu: Introduce proper blocking to no-CBs kthreads GP waits
X-Git-Tag: omap-for-v3.10/dt-fixes-for-merge-window~120^2^2^3~12
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=dae6e64d2bcfd4b06304ab864c7e3a4f6b5fedf4;p=pandora-kernel.git

rcu: Introduce proper blocking to no-CBs kthreads GP waits

Currently, the no-CBs kthreads do repeated timed waits for grace periods
to elapse.  This is crude and energy inefficient, so this commit allows
no-CBs kthreads to specify exactly which grace period they are waiting
for and also allows them to block for the entire duration until the
desired grace period completes.

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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