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Diffstat (limited to 'net/sched/sch_generic.c')
-rw-r--r--net/sched/sch_generic.c34
1 files changed, 17 insertions, 17 deletions
diff --git a/net/sched/sch_generic.c b/net/sched/sch_generic.c
index d47b9689eba6..a9aadc4e6858 100644
--- a/net/sched/sch_generic.c
+++ b/net/sched/sch_generic.c
@@ -409,7 +409,7 @@ static inline bool qdisc_restart(struct Qdisc *q, int *packets)
void __qdisc_run(struct Qdisc *q)
{
- int quota = dev_tx_weight;
+ int quota = READ_ONCE(dev_tx_weight);
int packets;
while (qdisc_restart(q, &packets)) {
@@ -941,7 +941,6 @@ struct Qdisc *qdisc_alloc(struct netdev_queue *dev_queue,
goto errout;
__skb_queue_head_init(&sch->gso_skb);
__skb_queue_head_init(&sch->skb_bad_txq);
- qdisc_skb_head_init(&sch->q);
gnet_stats_basic_sync_init(&sch->bstats);
spin_lock_init(&sch->q.lock);
@@ -1122,6 +1121,21 @@ struct Qdisc *dev_graft_qdisc(struct netdev_queue *dev_queue,
}
EXPORT_SYMBOL(dev_graft_qdisc);
+static void shutdown_scheduler_queue(struct net_device *dev,
+ struct netdev_queue *dev_queue,
+ void *_qdisc_default)
+{
+ struct Qdisc *qdisc = dev_queue->qdisc_sleeping;
+ struct Qdisc *qdisc_default = _qdisc_default;
+
+ if (qdisc) {
+ rcu_assign_pointer(dev_queue->qdisc, qdisc_default);
+ dev_queue->qdisc_sleeping = qdisc_default;
+
+ qdisc_put(qdisc);
+ }
+}
+
static void attach_one_default_qdisc(struct net_device *dev,
struct netdev_queue *dev_queue,
void *_unused)
@@ -1169,6 +1183,7 @@ static void attach_default_qdiscs(struct net_device *dev)
if (qdisc == &noop_qdisc) {
netdev_warn(dev, "default qdisc (%s) fail, fallback to %s\n",
default_qdisc_ops->id, noqueue_qdisc_ops.id);
+ netdev_for_each_tx_queue(dev, shutdown_scheduler_queue, &noop_qdisc);
dev->priv_flags |= IFF_NO_QUEUE;
netdev_for_each_tx_queue(dev, attach_one_default_qdisc, NULL);
qdisc = txq->qdisc_sleeping;
@@ -1447,21 +1462,6 @@ void dev_init_scheduler(struct net_device *dev)
timer_setup(&dev->watchdog_timer, dev_watchdog, 0);
}
-static void shutdown_scheduler_queue(struct net_device *dev,
- struct netdev_queue *dev_queue,
- void *_qdisc_default)
-{
- struct Qdisc *qdisc = dev_queue->qdisc_sleeping;
- struct Qdisc *qdisc_default = _qdisc_default;
-
- if (qdisc) {
- rcu_assign_pointer(dev_queue->qdisc, qdisc_default);
- dev_queue->qdisc_sleeping = qdisc_default;
-
- qdisc_put(qdisc);
- }
-}
-
void dev_shutdown(struct net_device *dev)
{
netdev_for_each_tx_queue(dev, shutdown_scheduler_queue, &noop_qdisc);