sr_flush_kv
cv_broadcast(&(srp->sr_flush_kv));
cv_broadcast(&(srp->sr_flush_kv));
if (cv_timedwait(&(srp->sr_flush_kv), &(sep->se_lock),
cv_init(&(srp->sr_flush_kv), NULL, CV_DRIVER, NULL);
cv_destroy(&(srp->sr_flush_kv));