From d3b753db7c4f1f37a98b51974d484fda5d86dab5 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Tue, 15 Jul 2008 20:14:35 -0700 Subject: pkt_sched: Move gso_skb into Qdisc. We liberate any dangling gso_skb during qdisc destruction. It really only matters for the root qdisc. But when qdiscs can be shared by multiple netdev_queue objects, we can't have the gso_skb in the netdev_queue any more. Signed-off-by: David S. Miller --- net/sched/sch_generic.c | 19 +++++++++---------- 1 file changed, 9 insertions(+), 10 deletions(-) (limited to 'net/sched/sch_generic.c') diff --git a/net/sched/sch_generic.c b/net/sched/sch_generic.c index 2f575b9017d1..2bd75befa066 100644 --- a/net/sched/sch_generic.c +++ b/net/sched/sch_generic.c @@ -77,7 +77,7 @@ static inline int dev_requeue_skb(struct sk_buff *skb, struct Qdisc *q) { if (unlikely(skb->next)) - dev_queue->gso_skb = skb; + q->gso_skb = skb; else q->ops->requeue(skb, q); @@ -85,13 +85,12 @@ static inline int dev_requeue_skb(struct sk_buff *skb, return 0; } -static inline struct sk_buff *dequeue_skb(struct netdev_queue *dev_queue, - struct Qdisc *q) +static inline struct sk_buff *dequeue_skb(struct Qdisc *q) { struct sk_buff *skb; - if ((skb = dev_queue->gso_skb)) - dev_queue->gso_skb = NULL; + if ((skb = q->gso_skb)) + q->gso_skb = NULL; else skb = q->dequeue(q); @@ -155,10 +154,9 @@ static inline int qdisc_restart(struct netdev_queue *txq) struct sk_buff *skb; /* Dequeue packet */ - if (unlikely((skb = dequeue_skb(txq, q)) == NULL)) + if (unlikely((skb = dequeue_skb(q)) == NULL)) return 0; - /* And release queue */ spin_unlock(&txq->lock); @@ -643,8 +641,8 @@ static void dev_deactivate_queue(struct net_device *dev, void *_qdisc_default) { struct Qdisc *qdisc_default = _qdisc_default; + struct sk_buff *skb = NULL; struct Qdisc *qdisc; - struct sk_buff *skb; spin_lock_bh(&dev_queue->lock); @@ -652,9 +650,10 @@ static void dev_deactivate_queue(struct net_device *dev, if (qdisc) { dev_queue->qdisc = qdisc_default; qdisc_reset(qdisc); + + skb = qdisc->gso_skb; + qdisc->gso_skb = NULL; } - skb = dev_queue->gso_skb; - dev_queue->gso_skb = NULL; spin_unlock_bh(&dev_queue->lock); -- cgit v1.2.2