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[NET_SCHED]: sch_cbq: use hrtimer based watchdog

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Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Patrick McHardy 2007-03-16 01:21:11 -07:00 committed by David S. Miller
parent 59cb5c6734
commit 88a993540a
1 changed files with 7 additions and 21 deletions
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28
net/sched/sch_cbq.c
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@ -181,11 +181,11 @@ struct cbq_sched_data
unsigned pmask;
struct timer_list delay_timer;
struct timer_list wd_timer; /* Watchdog timer,
struct qdisc_watchdog watchdog; /* Watchdog timer,
started when CBQ has
backlog, but cannot
transmit just now */
long wd_expires;
psched_tdiff_t wd_expires;
int toplevel;
u32 hgenerator;
};
@ -604,14 +604,6 @@ static void cbq_ovl_drop(struct cbq_class *cl)
cbq_ovl_classic(cl);
}
static void cbq_watchdog(unsigned long arg)
{
struct Qdisc *sch = (struct Qdisc*)arg;
sch->flags &= ~TCQ_F_THROTTLED;
netif_schedule(sch->dev);
}
static unsigned long cbq_undelay_prio(struct cbq_sched_data *q, int prio)
{
struct cbq_class *cl;
@ -1063,13 +1055,9 @@ cbq_dequeue(struct Qdisc *sch)
if (sch->q.qlen) {
sch->qstats.overlimits++;
if (q->wd_expires) {
long delay = PSCHED_US2JIFFIE(q->wd_expires);
if (delay <= 0)
delay = 1;
mod_timer(&q->wd_timer, jiffies + delay);
sch->flags |= TCQ_F_THROTTLED;
}
if (q->wd_expires)
qdisc_watchdog_schedule(&q->watchdog,
q->now + q->wd_expires);
}
return NULL;
}
@ -1276,7 +1264,7 @@ cbq_reset(struct Qdisc* sch)
q->pmask = 0;
q->tx_class = NULL;
q->tx_borrowed = NULL;
del_timer(&q->wd_timer);
qdisc_watchdog_cancel(&q->watchdog);
del_timer(&q->delay_timer);
q->toplevel = TC_CBQ_MAXLEVEL;
PSCHED_GET_TIME(q->now);
@ -1446,9 +1434,7 @@ static int cbq_init(struct Qdisc *sch, struct rtattr *opt)
q->link.minidle = -0x7FFFFFFF;
q->link.stats_lock = &sch->dev->queue_lock;
init_timer(&q->wd_timer);
q->wd_timer.data = (unsigned long)sch;
q->wd_timer.function = cbq_watchdog;
qdisc_watchdog_init(&q->watchdog, sch);
init_timer(&q->delay_timer);
q->delay_timer.data = (unsigned long)sch;
q->delay_timer.function = cbq_undelay;