diff options
Diffstat (limited to 'net/sched')
| -rw-r--r-- | net/sched/sch_generic.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/net/sched/sch_generic.c b/net/sched/sch_generic.c index d7aca8ef524..7aad0121232 100644 --- a/net/sched/sch_generic.c +++ b/net/sched/sch_generic.c @@ -181,9 +181,13 @@ 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 +587,12 @@ void dev_deactivate(struct net_device *dev) dev_watchdog_down(dev); - while (test_bit(__LINK_STATE_SCHED, &dev->state)) - yield(); + /* Wait for outstanding dev_queue_xmit calls. */ + synchronize_rcu(); - spin_unlock_wait(&dev->_xmit_lock); + /* Wait for outstanding qdisc_run calls. */ + while (test_bit(__LINK_STATE_QDISC_RUNNING, &dev->state)) + yield(); } void dev_init_scheduler(struct net_device *dev) |