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x86: update canary handling during switch
author
Tejun Heo
<tj@kernel.org>
Wed, 21 Jan 2009 08:26:05 +0000
(17:26 +0900)
committer
Tejun Heo
<tj@kernel.org>
Wed, 21 Jan 2009 08:26:05 +0000
(17:26 +0900)
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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