On Thu, Jan 12, 2006 at 06:50:34PM +1100, Keith Owens wrote:
> "Paul E. McKenney" (on Wed, 11 Jan 2006 22:51:15 -0800) wrote:
> >On Thu, Jan 12, 2006 at 05:19:01PM +1100, Keith Owens wrote:
> >> OK, I have thought about it and ...
> >>
> >> notifier_call_chain_lockfree() must be called with preempt disabled.
> >>
> >Fair enough! A comment, perhaps? In a former life I would have also
> >demanded debug code to verify that preemption/interrupts/whatever were
> >actually disabled, given the very subtle nature of any resulting bugs...
>
> Comment - OK. Debug code is not required, the reference to
> smp_processor_id() already does all the debug checks that
> notifier_call_chain_lockfree() needs. CONFIG_PREEMPT_DEBUG is your
> friend.
Ah, debug_smp_processor_id(). Very cool!!!
Thanx, Paul
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