sch_choke: drop all packets in queue during reset

Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/sched/sch_choke.c b/net/sched/sch_choke.c
index 93d5742dc7e0f9730abd1726adf47857de1e64d4..6a783afe4960052912bf1241a22ab16d38d9e81a 100644 (file)
--- a/net/sched/sch_choke.c
+++ b/net/sched/sch_choke.c
@@ -385,6 +385,19 @@ static void choke_reset(struct Qdisc *sch)
 {
        struct choke_sched_data *q = qdisc_priv(sch);
 
+       while (q->head != q->tail) {
+               struct sk_buff *skb = q->tab[q->head];
+
+               q->head = (q->head + 1) & q->tab_mask;
+               if (!skb)
+                       continue;
+               qdisc_qstats_backlog_dec(sch, skb);
+               --sch->q.qlen;
+               qdisc_drop(skb, sch);
+       }
+
+       memset(q->tab, 0, (q->tab_mask + 1) * sizeof(struct sk_buff *));
+       q->head = q->tail = 0;
        red_restart(&q->vars);
 }