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| author | Patrick McHardy <kaber@trash.net> | 2007-03-16 01:20:31 -0700 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2007-04-25 22:26:08 -0700 |
| commit | 59cb5c6734021acc68590c7c2e0e92ad9a4952c6 (patch) | |
| tree | d2c35a5a7f8c6766f825a6b7684fe8e526dbd3d7 /net/sched | |
| parent | f7f593e383145931cb2a65df62c31ce1bcc0cffc (diff) | |
| download | linux-59cb5c6734021acc68590c7c2e0e92ad9a4952c6.tar.gz linux-59cb5c6734021acc68590c7c2e0e92ad9a4952c6.tar.bz2 linux-59cb5c6734021acc68590c7c2e0e92ad9a4952c6.zip | |
[NET_SCHED]: sch_netem: use hrtimer based watchdog
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sched')
| -rw-r--r-- | net/sched/sch_netem.c | 25 |
1 files changed, 5 insertions, 20 deletions
diff --git a/net/sched/sch_netem.c b/net/sched/sch_netem.c index 1ccbfb55b0b8..915f82a2cc3d 100644 --- a/net/sched/sch_netem.c +++ b/net/sched/sch_netem.c @@ -54,7 +54,7 @@ struct netem_sched_data { struct Qdisc *qdisc; - struct timer_list timer; + struct qdisc_watchdog watchdog; u32 latency; u32 loss; @@ -284,7 +284,7 @@ static struct sk_buff *netem_dequeue(struct Qdisc *sch) sch->flags &= ~TCQ_F_THROTTLED; return skb; } else { - psched_tdiff_t delay = PSCHED_TDIFF(cb->time_to_send, now); + qdisc_watchdog_schedule(&q->watchdog, cb->time_to_send); if (q->qdisc->ops->requeue(skb, q->qdisc) != NET_XMIT_SUCCESS) { qdisc_tree_decrease_qlen(q->qdisc, 1); @@ -292,32 +292,19 @@ static struct sk_buff *netem_dequeue(struct Qdisc *sch) printk(KERN_ERR "netem: queue discpline %s could not requeue\n", q->qdisc->ops->id); } - - mod_timer(&q->timer, jiffies + PSCHED_US2JIFFIE(delay)); - sch->flags |= TCQ_F_THROTTLED; } } return NULL; } -static void netem_watchdog(unsigned long arg) -{ - struct Qdisc *sch = (struct Qdisc *)arg; - - pr_debug("netem_watchdog qlen=%d\n", sch->q.qlen); - sch->flags &= ~TCQ_F_THROTTLED; - netif_schedule(sch->dev); -} - static void netem_reset(struct Qdisc *sch) { struct netem_sched_data *q = qdisc_priv(sch); qdisc_reset(q->qdisc); sch->q.qlen = 0; - sch->flags &= ~TCQ_F_THROTTLED; - del_timer_sync(&q->timer); + qdisc_watchdog_cancel(&q->watchdog); } /* Pass size change message down to embedded FIFO */ @@ -567,9 +554,7 @@ static int netem_init(struct Qdisc *sch, struct rtattr *opt) if (!opt) return -EINVAL; - init_timer(&q->timer); - q->timer.function = netem_watchdog; - q->timer.data = (unsigned long) sch; + qdisc_watchdog_init(&q->watchdog, sch); q->qdisc = qdisc_create_dflt(sch->dev, &tfifo_qdisc_ops, TC_H_MAKE(sch->handle, 1)); @@ -590,7 +575,7 @@ static void netem_destroy(struct Qdisc *sch) { struct netem_sched_data *q = qdisc_priv(sch); - del_timer_sync(&q->timer); + qdisc_watchdog_cancel(&q->watchdog); qdisc_destroy(q->qdisc); kfree(q->delay_dist); } |