diff --git a/net/sched/sch_generic.c b/net/sched/sch_generic.c index 10b5c0887fff..b741618e4d54 100644 --- a/net/sched/sch_generic.c +++ b/net/sched/sch_generic.c @@ -184,10 +184,22 @@ static inline int qdisc_restart(struct net_device *dev) void __qdisc_run(struct net_device *dev) { - do { - if (!qdisc_restart(dev)) + unsigned long start_time = jiffies; + + while (qdisc_restart(dev)) { + if (netif_queue_stopped(dev)) break; - } while (!netif_queue_stopped(dev)); + + /* + * Postpone processing if + * 1. another process needs the CPU; + * 2. we've been doing it for too long. + */ + if (need_resched() || jiffies != start_time) { + netif_schedule(dev); + break; + } + } clear_bit(__LINK_STATE_QDISC_RUNNING, &dev->state); }