return x / NETEM_DIST_SCALE + (sigma / NETEM_DIST_SCALE) * t + mu;
}
-static u64 packet_len_2_sched_time(unsigned int len,
- struct netem_sched_data *q)
+static u64 packet_time_ns(u64 len, const struct netem_sched_data *q)
{
- u64 offset;
len += q->packet_overhead;
if (q->cell_size) {
cells++;
len = cells * (q->cell_size + q->cell_overhead);
}
- offset = (u64)len * NSEC_PER_SEC;
- do_div(offset, q->rate);
- return offset;
+
+ return div64_u64(len * NSEC_PER_SEC, q->rate);
}
static void tfifo_reset(struct Qdisc *sch)
now = last->time_to_send;
}
- delay += packet_len_2_sched_time(qdisc_pkt_len(skb), q);
+ delay += packet_time_ns(qdisc_pkt_len(skb), q);
}
cb->time_to_send = now + delay;