Re: [patch -rt 1/2] KVM: use simple waitqueue for vcpu->wq

Peter Zijlstra
2015-08-07T11:14:15Z

On Fri, Aug 07, 2015 at 12:57:38PM +0200, Peter Zijlstra wrote:

> > >+void __finish_swait(struct swait_queue_head *q, struct swait_queue *wait)

> > this one has no users the __ suggests that it is locked edition. Maybe
> > it is for the completions…
>
> Yeah, who knows, I certainly do not anymore ;-)

On that, we cannot convert completions to swait. Because swait wake_all
must not happen from IRQ context, and complete_all() typically is used
from just that.
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