x86: conditionalize stack canary handling in hot path

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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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Tejun Heo 2009-01-20 12:29:19 +09:00

parent c6e50f93db

commit b4a8f7a262

1 changed files with 16 additions and 6 deletions

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22

arch/x86/include/asm/system.h

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