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sch_tbf: report backlog information
Provide child qdisc backlog (byte count) information so that "tc -s qdisc" can report it to user. qdisc netem 30: root refcnt 18 limit 1000 delay 20.0ms 10.0ms Sent 948517 bytes 898 pkt (dropped 0, overlimits 0 requeues 1) rate 175056bit 16pps backlog 114b 1p requeues 1 qdisc tbf 40: parent 30: rate 256000bit burst 20Kb/8 mpu 0b lat 0us Sent 948517 bytes 898 pkt (dropped 15, overlimits 611 requeues 0) backlog 18168b 12p requeues 0 Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -346,6 +346,7 @@ static int tbf_dump(struct Qdisc *sch, struct sk_buff *skb)
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struct nlattr *nest;
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struct tc_tbf_qopt opt;
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sch->qstats.backlog = q->qdisc->qstats.backlog;
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nest = nla_nest_start(skb, TCA_OPTIONS);
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if (nest == NULL)
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goto nla_put_failure;
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