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authorHagen Paul Pfeifer <hagen@jauu.net>2012-01-04 21:35:26 +0400
committerDavid S. Miller <davem@davemloft.net>2012-01-05 22:27:39 +0400
commiteb10192447370f19a215a8c2749332afa1199d46 (patch)
tree3c29d462ed3bc3b6c7af1492ca66395d2f0c5d42 /net
parente1e0918fcaea7b8100ed9f96f3ecd9eb9b867102 (diff)
downloadlinux-eb10192447370f19a215a8c2749332afa1199d46.tar.xz
net_sched: Bug in netem reordering
Not now, but it looks you are correct. q->qdisc is NULL until another additional qdisc is attached (beside tfifo). See 50612537e9ab2969312. The following patch should work. From: Hagen Paul Pfeifer <hagen@jauu.net> netem: catch NULL pointer by updating the real qdisc statistic Reported-by: Vijay Subramanian <subramanian.vijay@gmail.com> Signed-off-by: Hagen Paul Pfeifer <hagen@jauu.net> Acked-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.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/net/sched/sch_netem.c b/net/sched/sch_netem.c
index 06a5cebad342..e7e1d0b57b3d 100644
--- a/net/sched/sch_netem.c
+++ b/net/sched/sch_netem.c
@@ -458,8 +458,8 @@ static int netem_enqueue(struct sk_buff *skb, struct Qdisc *sch)
q->counter = 0;
__skb_queue_head(&sch->q, skb);
- q->qdisc->qstats.backlog += qdisc_pkt_len(skb);
- q->qdisc->qstats.requeues++;
+ sch->qstats.backlog += qdisc_pkt_len(skb);
+ sch->qstats.requeues++;
ret = NET_XMIT_SUCCESS;
}