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Diffstat (limited to 'net/sched')
-rw-r--r--net/sched/sch_generic.c42
1 files changed, 23 insertions, 19 deletions
diff --git a/net/sched/sch_generic.c b/net/sched/sch_generic.c
index dda78ee314ec..8247a406a401 100644
--- a/net/sched/sch_generic.c
+++ b/net/sched/sch_generic.c
@@ -63,10 +63,11 @@ static inline int qdisc_qlen(struct Qdisc *q)
}
static inline int dev_requeue_skb(struct sk_buff *skb, struct net_device *dev,
+ struct netdev_queue *dev_queue,
struct Qdisc *q)
{
if (unlikely(skb->next))
- dev->gso_skb = skb;
+ dev_queue->gso_skb = skb;
else
q->ops->requeue(skb, q);
@@ -75,12 +76,13 @@ static inline int dev_requeue_skb(struct sk_buff *skb, struct net_device *dev,
}
static inline struct sk_buff *dev_dequeue_skb(struct net_device *dev,
+ struct netdev_queue *dev_queue,
struct Qdisc *q)
{
struct sk_buff *skb;
- if ((skb = dev->gso_skb))
- dev->gso_skb = NULL;
+ if ((skb = dev_queue->gso_skb))
+ dev_queue->gso_skb = NULL;
else
skb = q->dequeue(q);
@@ -89,6 +91,7 @@ static inline struct sk_buff *dev_dequeue_skb(struct net_device *dev,
static inline int handle_dev_cpu_collision(struct sk_buff *skb,
struct net_device *dev,
+ struct netdev_queue *dev_queue,
struct Qdisc *q)
{
int ret;
@@ -111,7 +114,7 @@ static inline int handle_dev_cpu_collision(struct sk_buff *skb,
* some time.
*/
__get_cpu_var(netdev_rx_stat).cpu_collision++;
- ret = dev_requeue_skb(skb, dev, q);
+ ret = dev_requeue_skb(skb, dev, dev_queue, q);
}
return ret;
@@ -144,7 +147,7 @@ static inline int qdisc_restart(struct net_device *dev)
int ret = NETDEV_TX_BUSY;
/* Dequeue packet */
- if (unlikely((skb = dev_dequeue_skb(dev, q)) == NULL))
+ if (unlikely((skb = dev_dequeue_skb(dev, txq, q)) == NULL))
return 0;
@@ -167,7 +170,7 @@ static inline int qdisc_restart(struct net_device *dev)
case NETDEV_TX_LOCKED:
/* Driver try lock failed */
- ret = handle_dev_cpu_collision(skb, dev, q);
+ ret = handle_dev_cpu_collision(skb, dev, txq, q);
break;
default:
@@ -176,7 +179,7 @@ static inline int qdisc_restart(struct net_device *dev)
printk(KERN_WARNING "BUG %s code %d qlen %d\n",
dev->name, ret, q->q.qlen);
- ret = dev_requeue_skb(skb, dev, q);
+ ret = dev_requeue_skb(skb, dev, txq, q);
break;
}
@@ -578,31 +581,32 @@ void dev_activate(struct net_device *dev)
spin_unlock_bh(&txq->lock);
}
-static void dev_deactivate_queue(struct net_device *dev,
- struct netdev_queue *dev_queue,
+static void dev_deactivate_queue(struct netdev_queue *dev_queue,
struct Qdisc *qdisc_default)
{
- struct Qdisc *qdisc = dev_queue->qdisc;
+ struct Qdisc *qdisc;
+ struct sk_buff *skb;
+
+ spin_lock_bh(&dev_queue->lock);
+ qdisc = dev_queue->qdisc;
if (qdisc) {
dev_queue->qdisc = qdisc_default;
qdisc_reset(qdisc);
}
+ skb = dev_queue->gso_skb;
+ dev_queue->gso_skb = NULL;
+
+ spin_unlock_bh(&dev_queue->lock);
+
+ kfree_skb(skb);
}
void dev_deactivate(struct net_device *dev)
{
- struct sk_buff *skb;
int running;
- spin_lock_bh(&dev->tx_queue.lock);
- dev_deactivate_queue(dev, &dev->tx_queue, &noop_qdisc);
-
- skb = dev->gso_skb;
- dev->gso_skb = NULL;
- spin_unlock_bh(&dev->tx_queue.lock);
-
- kfree_skb(skb);
+ dev_deactivate_queue(&dev->tx_queue, &noop_qdisc);
dev_watchdog_down(dev);