[NET_SCHED]: sch_cbq: use hrtimer based watchdog

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/sched/sch_cbq.c b/net/sched/sch_cbq.c
index 76c92e7..d29d121 100644 (file)
--- a/net/sched/sch_cbq.c
+++ b/net/sched/sch_cbq.c
@@ -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;