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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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8
net/sched/sch_hfsc.c
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@@ -1591,7 +1591,7 @@ hfsc_enqueue(struct sk_buff *skb, struct Qdisc *sch)
cl = hfsc_classify(skb, sch, &err);
if (cl == NULL) {
if (err & __NET_XMIT_BYPASS)
sch->qstats.drops++;
qdisc_qstats_drop(sch);
kfree_skb(skb);
return err;
}
@@ -1600,7 +1600,7 @@ hfsc_enqueue(struct sk_buff *skb, struct Qdisc *sch)
if (unlikely(err != NET_XMIT_SUCCESS)) {
if (net_xmit_drop_count(err)) {
cl->qstats.drops++;
sch->qstats.drops++;
qdisc_qstats_drop(sch);
}
return err;
}
@@ -1643,7 +1643,7 @@ hfsc_dequeue(struct Qdisc *sch)
*/
cl = vttree_get_minvt(&q->root, cur_time);
if (cl == NULL) {
sch->qstats.overlimits++;
qdisc_qstats_overlimit(sch);
hfsc_schedule_watchdog(sch);
return NULL;
}
@@ -1698,7 +1698,7 @@ hfsc_drop(struct Qdisc *sch)
list_move_tail(&cl->dlist, &q->droplist);
}
cl->qstats.drops++;
sch->qstats.drops++;
qdisc_qstats_drop(sch);
sch->q.qlen--;
return len;
}