[PATCH 0/1] sched/wait: wait_event*_timeout() needs___wait_cond_timeout() too

[Oleg Nesterov]

And another patch we already discussed.

wait_event_timeout(wq, true, 0) still returns 0, this doesn't look
right, and this doesn't match __wait_event_timeout(timeout => 0).

Sure, most probably nobody uses the constant timeout == 0, but this
can break the code which does something like

	if (nonblock)
		timeout = 0;
	else
		timeout = TIMEOUT;

	success = wait_event_timeout(wq, CONDITION, timeout);

Oleg.

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