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authorJarek Poplawski <jarkao2@gmail.com>2009-09-13 22:35:44 +0000
committerDavid S. Miller <davem@davemloft.net>2009-09-14 17:03:57 -0700
commit036d6a673fa0a2e2c5b72a3b1d1b86114c1711c0 (patch)
treee74fea79b646540d2e766710121459925e3d8922
parentd314737ad3bad6b4603b243fd6db572385259690 (diff)
pkt_sched: Fix qdisc_graft WRT ingress qdisc
After the recent mq change using ingress qdisc overwrites dev->qdisc; there is also a wrong old qdisc pointer passed to notify_and_destroy. Signed-off-by: Jarek Poplawski <jarkao2@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--net/sched/sch_api.c15
1 files changed, 10 insertions, 5 deletions
diff --git a/net/sched/sch_api.c b/net/sched/sch_api.c
index 692d9a41cd2..c6e4063f698 100644
--- a/net/sched/sch_api.c
+++ b/net/sched/sch_api.c
@@ -693,13 +693,18 @@ static int qdisc_graft(struct net_device *dev, struct Qdisc *parent,
if (new && i > 0)
atomic_inc(&new->refcnt);
- qdisc_destroy(old);
+ if (!ingress)
+ qdisc_destroy(old);
}
- notify_and_destroy(skb, n, classid, dev->qdisc, new);
- if (new && !new->ops->attach)
- atomic_inc(&new->refcnt);
- dev->qdisc = new ? : &noop_qdisc;
+ if (!ingress) {
+ notify_and_destroy(skb, n, classid, dev->qdisc, new);
+ if (new && !new->ops->attach)
+ atomic_inc(&new->refcnt);
+ dev->qdisc = new ? : &noop_qdisc;
+ } else {
+ notify_and_destroy(skb, n, classid, old, new);
+ }
if (dev->flags & IFF_UP)
dev_activate(dev);