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| author | WANG Cong <xiyou.wangcong@gmail.com> | 2016-02-25 14:55:01 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-02-29 17:02:33 -0500 |
| commit | 2ccccf5fb43ff62b2b96cc58d95fc0b3596516e4 (patch) | |
| tree | d73ec90b0c0cfd1191ef35a4aa0eaea78af1f100 /net/sched/sch_cbq.c | |
| parent | 86a7996cc8a078793670d82ed97d5a99bb4e8496 (diff) | |
| download | op-kernel-dev-2ccccf5fb43ff62b2b96cc58d95fc0b3596516e4.zip op-kernel-dev-2ccccf5fb43ff62b2b96cc58d95fc0b3596516e4.tar.gz | |
net_sched: update hierarchical backlog too
When the bottom qdisc decides to, for example, drop some packet,
it calls qdisc_tree_decrease_qlen() to update the queue length
for all its ancestors, we need to update the backlog too to
keep the stats on root qdisc accurate.
Cc: Jamal Hadi Salim <jhs@mojatatu.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sched/sch_cbq.c')
| -rw-r--r-- | net/sched/sch_cbq.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/net/sched/sch_cbq.c b/net/sched/sch_cbq.c index 7f8474c..baafddf 100644 --- a/net/sched/sch_cbq.c +++ b/net/sched/sch_cbq.c @@ -1909,7 +1909,7 @@ static int cbq_delete(struct Qdisc *sch, unsigned long arg) { struct cbq_sched_data *q = qdisc_priv(sch); struct cbq_class *cl = (struct cbq_class *)arg; - unsigned int qlen; + unsigned int qlen, backlog; if (cl->filters || cl->children || cl == &q->link) return -EBUSY; @@ -1917,8 +1917,9 @@ static int cbq_delete(struct Qdisc *sch, unsigned long arg) sch_tree_lock(sch); qlen = cl->q->q.qlen; + backlog = cl->q->qstats.backlog; qdisc_reset(cl->q); - qdisc_tree_decrease_qlen(cl->q, qlen); + qdisc_tree_reduce_backlog(cl->q, qlen, backlog); if (cl->next_alive) cbq_deactivate_class(cl); |
