diff --git a/include/net/sch_generic.h b/include/net/sch_generic.h index 151208704ed2e6d71c6a06afcd1473e68428c88b..7bfc45c5b602d929d65715643cc3dd6c0032a11a 100644 --- a/include/net/sch_generic.h +++ b/include/net/sch_generic.h @@ -153,6 +153,11 @@ static inline bool qdisc_is_empty(const struct Qdisc *qdisc) return !READ_ONCE(qdisc->q.qlen); } +static inline bool qdisc_hashed(struct Qdisc *qdisc) +{ + return hash_hashed(&qdisc->hash); +} + static inline bool qdisc_run_begin(struct Qdisc *qdisc) { if (qdisc->flags & TCQ_F_NOLOCK) { @@ -629,6 +634,7 @@ void qdisc_class_hash_grow(struct Qdisc *, struct Qdisc_class_hash *); void qdisc_class_hash_destroy(struct Qdisc_class_hash *); int dev_qdisc_change_tx_queue_len(struct net_device *dev); +void dev_qdisc_set_real_num_tx_queues(struct net_device *dev); void dev_init_scheduler(struct net_device *dev); void dev_shutdown(struct net_device *dev); void dev_activate(struct net_device *dev); diff --git a/net/core/dev.c b/net/core/dev.c index 25dab1598803f4e8a4ad232f6d481f6d688d5d18..ccc03abeee52495c6e30f25c67ce45dca8457e8d 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -2875,6 +2875,7 @@ int netif_set_real_num_tx_queues(struct net_device *dev, unsigned int txq) netif_setup_tc(dev, txq); dev->real_num_tx_queues = txq; + dev_qdisc_set_real_num_tx_queues(dev); if (disabling) { synchronize_net(); diff --git a/net/sched/sch_generic.c b/net/sched/sch_generic.c index 6c9595f1048aa116575f9582b0d8ab04abc04104..36a40ebcf0eecf76801a428b6f0517fa61c52c39 100644 --- a/net/sched/sch_generic.c +++ b/net/sched/sch_generic.c @@ -1268,6 +1268,27 @@ int dev_qdisc_change_tx_queue_len(struct net_device *dev) return ret; } +void dev_qdisc_set_real_num_tx_queues(struct net_device *dev) +{ +#ifdef CONFIG_NET_SCHED + struct Qdisc *sch = dev->qdisc; + unsigned int ntx; + + if (!sch) + return; + + ASSERT_RTNL(); + + for (ntx = 0; ntx < dev->real_num_tx_queues; ntx++) { + struct netdev_queue *dev_queue = netdev_get_tx_queue(dev, ntx); + struct Qdisc *qdisc = dev_queue->qdisc; + + if (qdisc && !qdisc_hashed(qdisc)) + qdisc_hash_add(qdisc, false); + } +#endif +} + static void dev_init_scheduler_queue(struct net_device *dev, struct netdev_queue *dev_queue, void *_qdisc)