>> + while (!(flags & MSG_DONTWAIT) && !pvcalls_front_read_todo(map)) {
>> + if (count < PVCALLS_FRONT_MAX_SPIN)
>> + count++;
>> + else
>> + wait_event_interruptible(map->active.inflight_conn_req,
>> + pvcalls_front_read_todo(map));
>> + }
> Should we be using PVCALLS_FRONT_MAX_SPIN here? In sendmsg it is
> counting non-sleeping iterations but here we are sleeping so
> PVCALLS_FRONT_MAX_SPIN (5000) may take a while.
>
> In fact, what shouldn't this waiting be a function of MSG_DONTWAIT
err, which it already is. But the question still stands (except for
MSG_DONTWAIT).
-boris
> and/or socket's O_NONBLOCK?
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