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| author | Cong Wang <xiyou.wangcong@gmail.com> | 2020-05-26 21:35:24 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-05-27 15:05:49 -0700 |
| commit | a34dac0b9055202cf9c64e08d8d8dc5e23029d3a (patch) | |
| tree | b2276cda43830ba8dc9702c5dffaff950d0bee44 /net/sched/sch_generic.c | |
| parent | 4909daba37846317ec7dcba16fba009636f7fe21 (diff) | |
| download | lwn-a34dac0b9055202cf9c64e08d8d8dc5e23029d3a.tar.gz lwn-a34dac0b9055202cf9c64e08d8d8dc5e23029d3a.zip | |
net_sched: add tracepoints for qdisc_reset() and qdisc_destroy()
Add two tracepoints for qdisc_reset() and qdisc_destroy() to track
qdisc resetting and destroying.
Sample output:
tc-756 [000] ...3 138.355662: qdisc_reset: dev=ens3 kind=pfifo_fast parent=ffff:ffff handle=0:0
tc-756 [000] ...1 138.355720: qdisc_reset: dev=ens3 kind=pfifo_fast parent=ffff:ffff handle=0:0
tc-756 [000] ...1 138.355867: qdisc_reset: dev=ens3 kind=pfifo_fast parent=ffff:ffff handle=0:0
tc-756 [000] ...1 138.355930: qdisc_destroy: dev=ens3 kind=pfifo_fast parent=ffff:ffff handle=0:0
tc-757 [000] ...2 143.073780: qdisc_reset: dev=ens3 kind=fq_codel parent=ffff:ffff handle=8001:0
tc-757 [000] ...1 143.073878: qdisc_reset: dev=ens3 kind=fq_codel parent=ffff:ffff handle=8001:0
tc-757 [000] ...1 143.074114: qdisc_reset: dev=ens3 kind=fq_codel parent=ffff:ffff handle=8001:0
tc-757 [000] ...1 143.074228: qdisc_destroy: dev=ens3 kind=fq_codel parent=ffff:ffff handle=8001:0
Cc: Jamal Hadi Salim <jhs@mojatatu.com>
Cc: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sched/sch_generic.c')
| -rw-r--r-- | net/sched/sch_generic.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/net/sched/sch_generic.c b/net/sched/sch_generic.c index 7a0b06001e48..abaa446ed01a 100644 --- a/net/sched/sch_generic.c +++ b/net/sched/sch_generic.c @@ -911,6 +911,8 @@ void qdisc_reset(struct Qdisc *qdisc) const struct Qdisc_ops *ops = qdisc->ops; struct sk_buff *skb, *tmp; + trace_qdisc_reset(qdisc); + if (ops->reset) ops->reset(qdisc); @@ -965,6 +967,8 @@ static void qdisc_destroy(struct Qdisc *qdisc) module_put(ops->owner); dev_put(qdisc_dev(qdisc)); + trace_qdisc_destroy(qdisc); + call_rcu(&qdisc->rcu, qdisc_free_cb); } |