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pkt_sched: Never schedule non-root qdiscs. 

Based upon initial discovery and patch by Jarek Poplawski.

The qdisc watchdogs can be attached to any qdisc, not just the root,
so make sure we schedule the correct one.

CBQ has a similar bug.

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2008-08-18 20:51:18 -07:00
parent 69747650c8
commit 8608db031b
2 changed files with 2 additions and 2 deletions
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2
net/sched/sch_api.c
View File

@ -426,7 +426,7 @@ static enum hrtimer_restart qdisc_watchdog(struct hrtimer *timer)
wd->qdisc->flags &= ~TCQ_F_THROTTLED;
smp_wmb();
__netif_schedule(wd->qdisc);
__netif_schedule(qdisc_root(wd->qdisc));
return HRTIMER_NORESTART;
}

2
net/sched/sch_cbq.c
View File

@ -654,7 +654,7 @@ static enum hrtimer_restart cbq_undelay(struct hrtimer *timer)
}
sch->flags &= ~TCQ_F_THROTTLED;
__netif_schedule(sch);
__netif_schedule(qdisc_root(sch));
return HRTIMER_NORESTART;
}