This is a note to let you know that I've just added the patch titled net: sched: fix dump qlen for sch_mq/sch_mqprio with NOLOCK subqueues to the 5.3-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: net-sched-fix-dump-qlen-for-sch_mq-sch_mqprio-with-nolock-subqueues.patch and it can be found in the queue-5.3 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From foo@baz Tue 17 Dec 2019 08:14:58 PM CET From: Dust Li <dust.li@xxxxxxxxxxxxxxxxx> Date: Tue, 3 Dec 2019 11:17:40 +0800 Subject: net: sched: fix dump qlen for sch_mq/sch_mqprio with NOLOCK subqueues 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; Patches currently in stable-queue which might be from dust.li@xxxxxxxxxxxxxxxxx are queue-5.3/net-sched-fix-dump-qlen-for-sch_mq-sch_mqprio-with-nolock-subqueues.patch