X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=net%2Fsched%2Fsch_generic.c;h=d355e5e47fe3a71aca1d151db1ce72429a069297;hb=ad2fa42d044b98469449880474a9662fb689f7f9;hp=10b5c0887fff3068c887da695dbca63854a97de2;hpb=0ba6c33bcddc64a54b5f1c25a696c4767dc76292;p=linux-2.6-omap-h63xx.git

diff --git a/net/sched/sch_generic.c b/net/sched/sch_generic.c
index 10b5c0887ff..d355e5e47fe 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;
+
+		/*
+		 * 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;
-	} while (!netif_queue_stopped(dev));
+		}
+	}
 
 	clear_bit(__LINK_STATE_QDISC_RUNNING, &dev->state);
 }
@@ -207,6 +219,7 @@ static void dev_watchdog(unsigned long arg)
 				printk(KERN_INFO "NETDEV WATCHDOG: %s: transmit timed out\n",
 				       dev->name);
 				dev->tx_timeout(dev);
+				WARN_ON_ONCE(1);
 			}
 			if (!mod_timer(&dev->watchdog_timer, round_jiffies(jiffies + dev->watchdog_timeo)))
 				dev_hold(dev);