aboutsummaryrefslogtreecommitdiff
path: root/net
diff options
context:
space:
mode:
authorEric Dumazet <eric.dumazet@gmail.com>2012-02-15 20:28:25 +0000
committerDavid S. Miller <davem@davemloft.net>2012-02-19 18:57:50 -0500
commitcd961c2ca98efbe7d738ca8720673fc03538b2b1 (patch)
treef53abc9d2ac6bdd0659c46e30ac44e2cbdf74f01 /net
parentb01543dfe67bb1d191998e90d20534dc354de059 (diff)
downloadlinux-linaro-stable-cd961c2ca98efbe7d738ca8720673fc03538b2b1.tar.gz
netem: fix dequeue
commit 50612537e9 (netem: fix classful handling) added two errors in netem_dequeue() 1) After checking skb at the head of tfifo queue for time constraints, it dequeues tail skb, thus adding unwanted reordering. 2) qdisc stats are updated twice per packet (one when packet dequeued from tfifo, once when delivered) Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
-rw-r--r--net/sched/sch_netem.c6
1 files changed, 2 insertions, 4 deletions
diff --git a/net/sched/sch_netem.c b/net/sched/sch_netem.c
index e83d61ca78ca..5da548fa7ae9 100644
--- a/net/sched/sch_netem.c
+++ b/net/sched/sch_netem.c
@@ -501,9 +501,8 @@ tfifo_dequeue:
/* if more time remaining? */
if (cb->time_to_send <= psched_get_time()) {
- skb = qdisc_dequeue_tail(sch);
- if (unlikely(!skb))
- goto qdisc_dequeue;
+ __skb_unlink(skb, &sch->q);
+ sch->qstats.backlog -= qdisc_pkt_len(skb);
#ifdef CONFIG_NET_CLS_ACT
/*
@@ -539,7 +538,6 @@ deliver:
qdisc_watchdog_schedule(&q->watchdog, cb->time_to_send);
}
-qdisc_dequeue:
if (q->qdisc) {
skb = q->qdisc->ops->dequeue(q->qdisc);
if (skb)