zyd_rq
struct zyd_rq *rqp;
struct zyd_rq *rqp, *cmd;
struct zyd_rq rq;
STAILQ_REMOVE(&sc->sc_rqh, &rq, zyd_rq, rq);
STAILQ_ENTRY(zyd_rq) rq;
STAILQ_HEAD(, zyd_rq) sc_rtx;
STAILQ_HEAD(, zyd_rq) sc_rqh;