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SubjectRe: 2.6.15-mm4

* Brice Goglin <Brice.Goglin@ens-lyon.org> wrote:

> >Could you try the patch below?
>
> Yes, it does fix it. What's the bug ? The mutexes are supposed to work
> where semaphores do, aren't they ?

no, not always. We could introduce mutex_trylock_irqsafe() and
mutex_unlock_irqsafe(), but it's probably not worth doing it - it's just
3-4 cases so far, out of hundreds of mutex conversions.

Ingo
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