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authorDavid S. Miller <davem@davemloft.net>2008-07-08 23:12:38 -0700
committerDavid S. Miller <davem@davemloft.net>2008-07-08 23:12:38 -0700
commiteb6aafe3f843cb0e939546c03540a3b4911b6964 (patch)
tree550cfba4baadcb64f98ce6e77fe6f9b44b5bb142 /net
parent86d804e10a37cd86f16bf72386c37e843a98a74b (diff)
pkt_sched: Make qdisc_run take a netdev_queue.
This allows us to use this calling convention all the way down into qdisc_restart(). Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
-rw-r--r--net/core/dev.c4
-rw-r--r--net/sched/sch_generic.c26
2 files changed, 16 insertions, 14 deletions
diff --git a/net/core/dev.c b/net/core/dev.c
index 0dc888ad421..0218b0b9be8 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -1734,7 +1734,7 @@ gso:
/* reset queue_mapping to zero */
skb_set_queue_mapping(skb, 0);
rc = q->enqueue(skb, q);
- qdisc_run(dev);
+ qdisc_run(txq);
spin_unlock(&txq->lock);
rc = rc == NET_XMIT_BYPASS ? NET_XMIT_SUCCESS : rc;
@@ -1930,7 +1930,7 @@ static void net_tx_action(struct softirq_action *h)
clear_bit(__LINK_STATE_SCHED, &dev->state);
if (spin_trylock(&txq->lock)) {
- qdisc_run(dev);
+ qdisc_run(txq);
spin_unlock(&txq->lock);
} else {
netif_schedule_queue(txq);
diff --git a/net/sched/sch_generic.c b/net/sched/sch_generic.c
index 407dfdb142a..fcc7533f0bc 100644
--- a/net/sched/sch_generic.c
+++ b/net/sched/sch_generic.c
@@ -75,9 +75,8 @@ static inline int dev_requeue_skb(struct sk_buff *skb,
return 0;
}
-static inline struct sk_buff *dev_dequeue_skb(struct net_device *dev,
- struct netdev_queue *dev_queue,
- struct Qdisc *q)
+static inline struct sk_buff *dequeue_skb(struct netdev_queue *dev_queue,
+ struct Qdisc *q)
{
struct sk_buff *skb;
@@ -90,10 +89,10 @@ 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)
{
+ struct net_device *dev = dev_queue->dev;
int ret;
if (unlikely(dev->xmit_lock_owner == smp_processor_id())) {
@@ -139,21 +138,23 @@ static inline int handle_dev_cpu_collision(struct sk_buff *skb,
* >0 - queue is not empty.
*
*/
-static inline int qdisc_restart(struct net_device *dev)
+static inline int qdisc_restart(struct netdev_queue *txq)
{
- struct netdev_queue *txq = &dev->tx_queue;
struct Qdisc *q = txq->qdisc;
- struct sk_buff *skb;
int ret = NETDEV_TX_BUSY;
+ struct net_device *dev;
+ struct sk_buff *skb;
/* Dequeue packet */
- if (unlikely((skb = dev_dequeue_skb(dev, txq, q)) == NULL))
+ if (unlikely((skb = dequeue_skb(txq, q)) == NULL))
return 0;
/* And release queue */
spin_unlock(&txq->lock);
+ dev = txq->dev;
+
HARD_TX_LOCK(dev, smp_processor_id());
if (!netif_subqueue_stopped(dev, skb))
ret = dev_hard_start_xmit(skb, dev);
@@ -170,7 +171,7 @@ static inline int qdisc_restart(struct net_device *dev)
case NETDEV_TX_LOCKED:
/* Driver try lock failed */
- ret = handle_dev_cpu_collision(skb, dev, txq, q);
+ ret = handle_dev_cpu_collision(skb, txq, q);
break;
default:
@@ -186,11 +187,12 @@ static inline int qdisc_restart(struct net_device *dev)
return ret;
}
-void __qdisc_run(struct net_device *dev)
+void __qdisc_run(struct netdev_queue *txq)
{
+ struct net_device *dev = txq->dev;
unsigned long start_time = jiffies;
- while (qdisc_restart(dev)) {
+ while (qdisc_restart(txq)) {
if (netif_queue_stopped(dev))
break;
@@ -200,7 +202,7 @@ void __qdisc_run(struct net_device *dev)
* 2. we've been doing it for too long.
*/
if (need_resched() || jiffies != start_time) {
- netif_schedule_queue(&dev->tx_queue);
+ netif_schedule_queue(txq);
break;
}
}