On (11/02/17 23:15), Steven Rostedt wrote:
> On Thu, 2 Nov 2017 23:16:16 +0100
> Vlastimil Babka <vbabka@xxxxxxx> wrote:
>
> > > + if (spin) {
> > > + /* We spin waiting for the owner to release us */
> > > + spin_acquire(&console_owner_dep_map, 0, 0, _THIS_IP_);
> > > + /* Owner will clear console_waiter on hand off */
> > > + while (!READ_ONCE(console_waiter))
> >
> > This should not be negated, right? We should spin while it's true, not
> > false.
>
> Ug, yes. How did that not crash in my tests.
Ah, right... Good catch, Vlastimil. The V1 didn't work as expected
on my tests.
-ss
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