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sched: Use __qdisc_drop instead of kfree_skb in sch_prio and sch_qfq 

The commit 520ac30f45 ("net_sched: drop packets after root qdisc lock
is released) made a big change of tc for performance. There are two points
left in sch_prio and sch_qfq which are not changed with that commit. Now
enhance them now with __qdisc_drop.

Signed-off-by: Gao Feng <gfree.wind@vip.163.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Gao Feng 2017-09-04 14:21:12 +08:00 committed by David S. Miller
parent 9a94b3a4bd
commit 39ad1297a2
2 changed files with 2 additions and 2 deletions
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2
net/sched/sch_prio.c
View File

@ -80,7 +80,7 @@ prio_enqueue(struct sk_buff *skb, struct Qdisc *sch, struct sk_buff **to_free)
if (ret & __NET_XMIT_BYPASS)
qdisc_qstats_drop(sch);
kfree_skb(skb);
__qdisc_drop(skb, to_free);
return ret;
}
#endif

2
net/sched/sch_qfq.c
View File

@ -1215,7 +1215,7 @@ static int qfq_enqueue(struct sk_buff *skb, struct Qdisc *sch,
if (cl == NULL) {
if (err & __NET_XMIT_BYPASS)
qdisc_qstats_drop(sch);
kfree_skb(skb);
__qdisc_drop(skb, to_free);
return err;
}
pr_debug("qfq_enqueue: cl = %x\n", cl->common.classid);