fifo_set_limit 75 include/net/pkt_sched.h extern int fifo_set_limit(struct Qdisc *q, unsigned int limit); fifo_set_limit 143 net/sched/sch_fifo.c err = fifo_set_limit(q, limit); fifo_set_limit 421 net/sched/sch_netem.c ret = fifo_set_limit(q->qdisc, qopt->limit);