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SubjectRe: [PATCH/RFC 2.6.21 3/5] ehca: completion queue: remove use of do_mmap()
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Date
 > >  	spin_lock_irqsave(&ehca_cq_idr_lock, flags);
> > while (my_cq->nr_callbacks)
> > yield();

> Isn't that code outright buggy? Calling into the scheduler with a
> spinlock held and local interrupts disabled...

Yes, absolutely -- if nr_callbacks is ever nonzero then this will
obviously crash instantly.

- R.
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