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author | 2016-02-25 14:55:01 -0800 | |
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committer | 2016-02-29 17:02:33 -0500 | |
commit | 2ccccf5fb43ff62b2b96cc58d95fc0b3596516e4 (patch) | |
tree | d73ec90b0c0cfd1191ef35a4aa0eaea78af1f100 /net/sched/sch_sfb.c | |
parent | net_sched: introduce qdisc_replace() helper (diff) | |
download | linux-2ccccf5fb43ff62b2b96cc58d95fc0b3596516e4.tar.gz linux-2ccccf5fb43ff62b2b96cc58d95fc0b3596516e4.tar.bz2 linux-2ccccf5fb43ff62b2b96cc58d95fc0b3596516e4.zip |
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_sfb.c')
-rw-r--r-- | net/sched/sch_sfb.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/net/sched/sch_sfb.c b/net/sched/sch_sfb.c index 0e74e55fda15..c69611640fa5 100644 --- a/net/sched/sch_sfb.c +++ b/net/sched/sch_sfb.c @@ -510,7 +510,8 @@ static int sfb_change(struct Qdisc *sch, struct nlattr *opt) sch_tree_lock(sch); - qdisc_tree_decrease_qlen(q->qdisc, q->qdisc->q.qlen); + qdisc_tree_reduce_backlog(q->qdisc, q->qdisc->q.qlen, + q->qdisc->qstats.backlog); qdisc_destroy(q->qdisc); q->qdisc = child; |