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

No differences found