diff options
Diffstat (limited to 'net')
| -rw-r--r-- | net/core/dev.c | 6 | ||||
| -rw-r--r-- | net/sched/sch_generic.c | 12 |
2 files changed, 12 insertions, 6 deletions
diff --git a/net/core/dev.c b/net/core/dev.c index ab39fe17cb58..29e3888102bc 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -1295,7 +1295,7 @@ int dev_queue_xmit(struct sk_buff *skb) /* Disable soft irqs for various locks below. Also * stops preemption for RCU. */ - local_bh_disable(); + rcu_read_lock_bh(); /* Updates of qdisc are serialized by queue_lock. * The struct Qdisc which is pointed to by qdisc is now a @@ -1369,13 +1369,13 @@ int dev_queue_xmit(struct sk_buff *skb) } rc = -ENETDOWN; - local_bh_enable(); + rcu_read_unlock_bh(); out_kfree_skb: kfree_skb(skb); return rc; out: - local_bh_enable(); + rcu_read_unlock_bh(); return rc; } diff --git a/net/sched/sch_generic.c b/net/sched/sch_generic.c index d7aca8ef524a..7aad0121232c 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) |