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net: sched: implement qstat helper routines

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This adds helpers to manipulate qstats logic and replaces locations
that touch the counters directly. This simplifies future patches
to push qstats onto per cpu counters.

Signed-off-by: John Fastabend <john.r.fastabend@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
John Fastabend
2014-09-28 11:53:29 -07:00
committed by David S. Miller
parent 22e0f8b932
commit 25331d6ce4
25 changed files with 108 additions and 81 deletions
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net/sched/sch_pie.c
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@@ -232,7 +232,7 @@ static int pie_change(struct Qdisc *sch, struct nlattr *opt)
while (sch->q.qlen > sch->limit) {
struct sk_buff *skb = __skb_dequeue(&sch->q);
sch->qstats.backlog -= qdisc_pkt_len(skb);
qdisc_qstats_backlog_dec(sch, skb);
qdisc_drop(skb, sch);
}
qdisc_tree_decrease_qlen(sch, qlen - sch->q.qlen);