io_wait_event_killable
err = io_wait_event_killable(req->wq,
err = io_wait_event_killable(*chan->vc_wq,
err = io_wait_event_killable(vp_wq,
err = io_wait_event_killable(*chan->vc_wq,
err = io_wait_event_killable(req->wq,
while (io_wait_event_killable(ring->wq,