From: Christoph Lameter <cl@linux-foundation.org>
Date: Sat, 3 Oct 2009 10:48:23 +0000 (+0900)
Subject: this_cpu: Use this_cpu operations in RCU
X-Git-Tag: v2.6.33-rc1~288^2~18
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e800879d50c5a528d40191528557b1bdfbccbd42;p=pandora-kernel.git

this_cpu: Use this_cpu operations in RCU

RCU does not do dynamic allocations but it increments per cpu variables
a lot. These instructions results in a move to a register and then back
to memory. This patch will make it use the inc/dec instructions on x86
that do not need a register.

Acked-by: Tejun Heo <tj@kernel.org>
Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: Christoph Lameter <cl@linux-foundation.org>
Signed-off-by: Tejun Heo <tj@kernel.org>
---

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