diff options
Diffstat (limited to 'net/sched/sch_generic.c')
| -rw-r--r-- | net/sched/sch_generic.c | 25 |
1 files changed, 11 insertions, 14 deletions
diff --git a/net/sched/sch_generic.c b/net/sched/sch_generic.c index 6128e6f24589..a91f079fb47a 100644 --- a/net/sched/sch_generic.c +++ b/net/sched/sch_generic.c @@ -623,19 +623,6 @@ void qdisc_destroy(struct Qdisc *qdisc) } EXPORT_SYMBOL(qdisc_destroy); -static bool dev_all_qdisc_sleeping_noop(struct net_device *dev) -{ - unsigned int i; - - for (i = 0; i < dev->num_tx_queues; i++) { - struct netdev_queue *txq = netdev_get_tx_queue(dev, i); - - if (txq->qdisc_sleeping != &noop_qdisc) - return false; - } - return true; -} - static void attach_one_default_qdisc(struct net_device *dev, struct netdev_queue *dev_queue, void *_unused) @@ -677,6 +664,7 @@ static void transition_one_qdisc(struct net_device *dev, void dev_activate(struct net_device *dev) { + struct netdev_queue *txq; int need_watchdog; /* No queueing discipline is attached to device; @@ -685,9 +673,14 @@ void dev_activate(struct net_device *dev) virtual interfaces */ - if (dev_all_qdisc_sleeping_noop(dev)) + if (dev->qdisc == &noop_qdisc) { netdev_for_each_tx_queue(dev, attach_one_default_qdisc, NULL); + txq = netdev_get_tx_queue(dev, 0); + dev->qdisc = txq->qdisc_sleeping; + atomic_inc(&dev->qdisc->refcnt); + } + if (!netif_carrier_ok(dev)) /* Delay activation until next carrier-on event */ return; @@ -777,6 +770,7 @@ static void dev_init_scheduler_queue(struct net_device *dev, void dev_init_scheduler(struct net_device *dev) { + dev->qdisc = &noop_qdisc; netdev_for_each_tx_queue(dev, dev_init_scheduler_queue, &noop_qdisc); dev_init_scheduler_queue(dev, &dev->rx_queue, &noop_qdisc); @@ -802,5 +796,8 @@ void dev_shutdown(struct net_device *dev) { netdev_for_each_tx_queue(dev, shutdown_scheduler_queue, &noop_qdisc); shutdown_scheduler_queue(dev, &dev->rx_queue, &noop_qdisc); + qdisc_destroy(dev->qdisc); + dev->qdisc = &noop_qdisc; + WARN_ON(timer_pending(&dev->watchdog_timer)); } |