From: Christoph Lameter <cl@linux-foundation.org>
Date: Tue, 5 Jan 2010 06:34:50 +0000 (+0900)
Subject: percpu, x86: Generic inc / dec percpu instructions
X-Git-Tag: v2.6.34-rc1~223^2~7
X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5917dae83cb02dfe74c9167b79e86e6d65183fa3;p=pandora-kernel.git

percpu, x86: Generic inc / dec percpu instructions

Optimize code generated for percpu access by checking for increment and
decrements.

tj: fix incorrect usage of __builtin_constant_p() and restructure
    percpu_add_op() macro.

Signed-off-by: Christoph Lameter <cl@linux-foundation.org>
Signed-off-by: Tejun Heo <tj@kernel.org>
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