sch_red: update backlog as well

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

1 files changed, 4 insertions, 0 deletions

diff --git a/net/sched/sch_red.c b/net/sched/sch_red.c
index 8c0508c0e287..91578bdd378c 100644
--- a/net/sched/sch_red.c
+++ b/net/sched/sch_red.c
@@ -97,6 +97,7 @@ static int red_enqueue(struct sk_buff *skb, struct Qdisc *sch)
 
         ret = qdisc_enqueue(skb, child);
         if (likely(ret == NET_XMIT_SUCCESS)) {
+                qdisc_qstats_backlog_inc(sch, skb);
                 sch->q.qlen++;
         } else if (net_xmit_drop_count(ret)) {
                 q->stats.pdrop++;
@@ -118,6 +119,7 @@ static struct sk_buff *red_dequeue(struct Qdisc *sch)
         skb = child->dequeue(child);
         if (skb) {
                 qdisc_bstats_update(sch, skb);
+                qdisc_qstats_backlog_dec(sch, skb);
                 sch->q.qlen--;
         } else {
                 if (!red_is_idling(&q->vars))
@@ -143,6 +145,7 @@ static unsigned int red_drop(struct Qdisc *sch)
         if (child->ops->drop && (len = child->ops->drop(child)) > 0) {
                 q->stats.other++;
                 qdisc_qstats_drop(sch);
+                sch->qstats.backlog -= len;
                 sch->q.qlen--;
                 return len;
         }
@@ -158,6 +161,7 @@ static void red_reset(struct Qdisc *sch)
         struct red_sched_data *q = qdisc_priv(sch);
 
         qdisc_reset(q->qdisc);
+        sch->qstats.backlog = 0;
         sch->q.qlen = 0;
         red_restart(&q->vars);
 }