sch_sfb: keep backlog updated with qlen

Fixes: 2ccccf5fb43f ("net_sched: update hierarchical backlog too")
Cc: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/sched/sch_sfb.c b/net/sched/sch_sfb.c
index add3cc7d37ec1304642cd330fe6690304716ff29..20a350bd1b1dc8283c7e352ce0a953ce0eea2544 100644 (file)
--- a/net/sched/sch_sfb.c
+++ b/net/sched/sch_sfb.c
@@ -400,6 +400,7 @@ static int sfb_enqueue(struct sk_buff *skb, struct Qdisc *sch,
 enqueue:
        ret = qdisc_enqueue(skb, child, to_free);
        if (likely(ret == NET_XMIT_SUCCESS)) {
+               qdisc_qstats_backlog_inc(sch, skb);
                sch->q.qlen++;
                increment_qlen(skb, q);
        } else if (net_xmit_drop_count(ret)) {
@@ -428,6 +429,7 @@ static struct sk_buff *sfb_dequeue(struct Qdisc *sch)
 
        if (skb) {
                qdisc_bstats_update(sch, skb);
+               qdisc_qstats_backlog_dec(sch, skb);
                sch->q.qlen--;
                decrement_qlen(skb, q);
        }
@@ -450,6 +452,7 @@ static void sfb_reset(struct Qdisc *sch)
        struct sfb_sched_data *q = qdisc_priv(sch);
 
        qdisc_reset(q->qdisc);
+       sch->qstats.backlog = 0;
        sch->q.qlen = 0;
        q->slot = 0;
        q->double_buffering = false;