[PATCH 5.4 06/37] net: sched: fix dump qlen for sch_mq/sch_mqprio with NOLOCK subqueues

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From: Dust Li <dust.li@xxxxxxxxxxxxxxxxx>

[ Upstream commit 2f23cd42e19c22c24ff0e221089b7b6123b117c5 ]

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

Fixes: ce679e8df7ed ("net: sched: add support for TCQ_F_NOLOCK subqueues to sch_mqprio")
Signed-off-by: Dust Li <dust.li@xxxxxxxxxxxxxxxxx>
Signed-off-by: Tony Lu <tonylu@xxxxxxxxxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 net/sched/sch_mq.c     |    1 +
 net/sched/sch_mqprio.c |    1 +
 2 files changed, 2 insertions(+)

--- a/net/sched/sch_mq.c
+++ b/net/sched/sch_mq.c
@@ -153,6 +153,7 @@ static int mq_dump(struct Qdisc *sch, st
 			__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;
--- a/net/sched/sch_mqprio.c
+++ b/net/sched/sch_mqprio.c
@@ -411,6 +411,7 @@ static int mqprio_dump(struct Qdisc *sch
 			__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;





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