From: Tejun Heo <tj@kernel.org>
Date: Tue, 20 Jan 2009 03:29:19 +0000 (+0900)
Subject: x86: conditionalize stack canary handling in hot path
X-Git-Tag: v2.6.30-rc1~2^2~50^2~65^2~6
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b4a8f7a262e79ecb0b39beb1449af524a78887f8;p=pandora-kernel.git

x86: conditionalize stack canary handling in hot path

Impact: no unnecessary stack canary swapping during context switch

There's no point in moving stack_canary around during context switch
if it's not enabled.  Conditionalize it.

Signed-off-by: Tejun Heo <tj@kernel.org>
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