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SubjectRe: lock order in O(1) scheduler

On 10 Jan 2002, Robert Love wrote:

> I believe the code should be:
>
> if (target_cpu < smp_processor_id()) {
> spin_lock_irq(&target_rq->lock);
> spin_lock(&this_rq->lock);
> } else {
> spin_lock_irq(&this_rq->lock);
> spin_lock(&target_rq->lock);
> }
>
> Not so sure about unlocking. Ingo?

yep, correct, good catch!

the unlocking order does not matter much.

Ingo

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