iowait_get_tid_work
if (iowait_get_tid_work(w)->iowork.func)
cancel_work_sync(&iowait_get_tid_work(w)->iowork);
flush_list_head(&iowait_get_tid_work(&priv->s_iowait)->tx_head);
(verbs_txreq_queued(iowait_get_tid_work(&priv->s_iowait)) ||
ps.wait = iowait_get_tid_work(&priv->s_iowait);
ps.wait = iowait_get_tid_work(&priv->s_iowait);