net: sched: fix dump qlen for sch_mq/sch_mqprio with NOLOCK subqueues

sch->q.len hasn't been set if the subqueue is a NOLOCK qdisc
 in mq_dump() and mqprio_dump().

Fixes: ce679e8 ("net: sched: add support for TCQ_F_NOLOCK subqueues to sch_mqprio")
Signed-off-by: Dust Li <[email protected]>
Signed-off-by: Tony Lu <[email protected]>
Signed-off-by: David S. Miller <[email protected]>

Author: Dust Li

net/sched/sch_mq.c

@@ -153,6 +153,7 @@ static int mq_dump(struct Qdisc *sch, struct sk_buff *skb)
 			__gnet_stats_copy_queue(&sch->qstats,
 						qdisc->cpu_qstats,
 						&qdisc->qstats, qlen);
+			sch->q.qlen		+= qlen;
 		} else {
 			sch->q.qlen		+= qdisc->q.qlen;
 			sch->bstats.bytes	+= qdisc->bstats.bytes;

net/sched/sch_mqprio.c

@@ -411,6 +411,7 @@ static int mqprio_dump(struct Qdisc *sch, struct sk_buff *skb)
 			__gnet_stats_copy_queue(&sch->qstats,
 						qdisc->cpu_qstats,
 						&qdisc->qstats, qlen);
+			sch->q.qlen		+= qlen;
 		} else {
 			sch->q.qlen		+= qdisc->q.qlen;
 			sch->bstats.bytes	+= qdisc->bstats.bytes;