pfifo_head_drop_qdisc_ops   90 include/net/pkt_sched.h extern struct Qdisc_ops pfifo_head_drop_qdisc_ops;
pfifo_head_drop_qdisc_ops 2277 net/sched/sch_api.c 	register_qdisc(&pfifo_head_drop_qdisc_ops);
pfifo_head_drop_qdisc_ops  128 net/sched/sch_fifo.c struct Qdisc_ops pfifo_head_drop_qdisc_ops __read_mostly = {