static unsigned int gred_drop(struct Qdisc *sch)
{
struct sk_buff *skb;
struct gred_sched *t = qdisc_priv(sch);
skb = qdisc_dequeue_tail(sch);
if (skb) {
unsigned int len = qdisc_pkt_len(skb);
struct gred_sched_data *q;
u16 dp = tc_index_to_dp(skb);
if (dp >= t->DPs || (q = t->tab[dp]) == NULL) {
if (net_ratelimit())
pr_warning("GRED: Unable to relocate VQ 0x%x "
"while dropping, screwing up "
"backlog.\n", tc_index_to_dp(skb));
} else {
q->backlog -= len;
q->stats.other++;
if (!q->backlog && !gred_wred_mode(t))
red_start_of_idle_period(&q->vars);
}
qdisc_drop(skb, sch);
return len;
}
if (gred_wred_mode(t) && !red_is_idling(&t->wred_set))
red_start_of_idle_period(&t->wred_set);
return 0;
}
static unsigned int red_drop(struct Qdisc* sch)
{
struct sk_buff *skb;
struct red_sched_data *q = qdisc_priv(sch);
skb = qdisc_dequeue_tail(sch);
if (skb) {
unsigned int len = skb->len;
q->stats.other++;
qdisc_drop(skb, sch);
return len;
}
if (!red_is_idling(&q->parms))
red_start_of_idle_period(&q->parms);
return 0;
}
