From: WANG Cong <xiyou.wangcong@xxxxxxxxx> commit 3d4357fba82b3cf19ebf0a04d1c9cb086af15d02 upstream. Fixes: 2ccccf5fb43f ("net_sched: update hierarchical backlog too") Cc: Jamal Hadi Salim <jhs@xxxxxxxxxxxx> Signed-off-by: Cong Wang <xiyou.wangcong@xxxxxxxxx> Acked-by: Jamal Hadi Salim <jhs@xxxxxxxxxxxx> Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- net/sched/sch_sfb.c | 3 +++ 1 file changed, 3 insertions(+) --- a/net/sched/sch_sfb.c +++ b/net/sched/sch_sfb.c @@ -400,6 +400,7 @@ static int sfb_enqueue(struct sk_buff *s enqueue: ret = qdisc_enqueue(skb, child); 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(struc 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;