ronnie sahlberg <ronniesahlberg@xxxxxxxxx> writes:
> Sounds good, but why the wake_up()
> I will resend without wake_up()
to add to Pavel explanations (I also had to look it up)
wait_for_free_credits() calls
wait_event_killable(server->request_q, has_credits(server, credits));
And the func doc is:
* wait_event_killable - sleep until a condition gets true
* @wq_head: the waitqueue to wait on
* @condition: a C expression for the event to wait for
*
* The process is put to sleep (TASK_KILLABLE) until the
* @condition evaluates to true or a signal is received.
* The @condition is checked each time the waitqueue @wq_head is woken up.
*
* wake_up() has to be called after changing any variable that could
* change the result of the wait condition.
Cheers,
--
Aurélien Aptel / SUSE Labs Samba Team
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