From: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Date: Mon, 16 May 2011 21:27:31 +0000 (-0700)
Subject: rcu: Make rcu_enter_nohz() pay attention to nesting
X-Git-Tag: v3.0-rc1~24^2~4^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4305ce7894dd38b0633bfc8978437320119223bd;p=pandora-kernel.git

rcu: Make rcu_enter_nohz() pay attention to nesting

The old version of rcu_enter_nohz() forced RCU into nohz mode even if
the nesting count was non-zero.  This change causes rcu_enter_nohz()
to hold off for non-zero nesting counts.

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