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| author | Linus Torvalds <torvalds@g5.osdl.org> | 2006-06-23 08:00:01 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-06-23 08:00:01 -0700 |
| commit | 199f4c9f76fd8b030405abddf294e771f888de03 (patch) | |
| tree | ee4f104a7562e1fd76882bc40f2de7d90812e1df /net/sched/sch_generic.c | |
| parent | 37224470c8c6d90a4062e76a08d4dc1fcf91fc89 (diff) | |
| parent | ca6bb5d7ab22ac79f608fe6cbc6b12de6a5a19f0 (diff) | |
| download | linux-rt-199f4c9f76fd8b030405abddf294e771f888de03.tar.gz | |
Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
* master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6:
[NET]: Require CAP_NET_ADMIN to create tuntap devices.
[NET]: fix net-core kernel-doc
[TCP]: Move inclusion of <linux/dmaengine.h> to correct place in <linux/tcp.h>
[IPSEC]: Handle GSO packets
[NET]: Added GSO toggle
[NET]: Add software TSOv4
[NET]: Add generic segmentation offload
[NET]: Merge TSO/UFO fields in sk_buff
[NET]: Prevent transmission after dev_deactivate
[IPV6] ADDRCONF: Fix default source address selection without CONFIG_IPV6_PRIVACY
[IPV6]: Fix source address selection.
[NET]: Avoid allocating skb in skb_pad
Diffstat (limited to 'net/sched/sch_generic.c')
| -rw-r--r-- | net/sched/sch_generic.c | 29 |
1 files changed, 22 insertions, 7 deletions
diff --git a/net/sched/sch_generic.c b/net/sched/sch_generic.c index d7aca8ef524a..74d4a1dceeec 100644 --- a/net/sched/sch_generic.c +++ b/net/sched/sch_generic.c @@ -96,8 +96,11 @@ static inline int qdisc_restart(struct net_device *dev) struct sk_buff *skb; /* Dequeue packet */ - if ((skb = q->dequeue(q)) != NULL) { + if (((skb = dev->gso_skb)) || ((skb = q->dequeue(q)))) { unsigned nolock = (dev->features & NETIF_F_LLTX); + + dev->gso_skb = NULL; + /* * When the driver has LLTX set it does its own locking * in start_xmit. No need to add additional overhead by @@ -134,10 +137,8 @@ static inline int qdisc_restart(struct net_device *dev) if (!netif_queue_stopped(dev)) { int ret; - if (netdev_nit) - dev_queue_xmit_nit(skb, dev); - ret = dev->hard_start_xmit(skb, dev); + ret = dev_hard_start_xmit(skb, dev); if (ret == NETDEV_TX_OK) { if (!nolock) { netif_tx_unlock(dev); @@ -171,7 +172,10 @@ static inline int qdisc_restart(struct net_device *dev) */ requeue: - q->ops->requeue(skb, q); + if (skb->next) + dev->gso_skb = skb; + else + q->ops->requeue(skb, q); netif_schedule(dev); return 1; } @@ -181,9 +185,13 @@ requeue: void __qdisc_run(struct net_device *dev) { + if (unlikely(dev->qdisc == &noop_qdisc)) + goto out; + while (qdisc_restart(dev) < 0 && !netif_queue_stopped(dev)) /* NOTHING */; +out: clear_bit(__LINK_STATE_QDISC_RUNNING, &dev->state); } @@ -583,10 +591,17 @@ void dev_deactivate(struct net_device *dev) dev_watchdog_down(dev); - while (test_bit(__LINK_STATE_SCHED, &dev->state)) + /* Wait for outstanding dev_queue_xmit calls. */ + synchronize_rcu(); + + /* Wait for outstanding qdisc_run calls. */ + while (test_bit(__LINK_STATE_QDISC_RUNNING, &dev->state)) yield(); - spin_unlock_wait(&dev->_xmit_lock); + if (dev->gso_skb) { + kfree_skb(dev->gso_skb); + dev->gso_skb = NULL; + } } void dev_init_scheduler(struct net_device *dev) |