From: Tejun Heo <tj@kernel.org>
Date: Wed, 21 Jan 2009 08:26:05 +0000 (+0900)
Subject: x86: update canary handling during switch
X-Git-Tag: v2.6.30-rc1~2^2~50^2~64^2~9
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=67e68bde02fe783efc2ce2ca31bdb992f5235f8d;p=pandora-kernel.git

x86: update canary handling during switch

Impact: cleanup

In switch_to(), instead of taking offset to irq_stack_union.stack,
make it a proper percpu access using __percpu_arg() and per_cpu_var().

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