[NET_SCHED]: sch_hfsc: use hrtimer based watchdog

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

1 files changed, 7 insertions, 25 deletions

diff --git a/net/sched/sch_hfsc.c b/net/sched/sch_hfsc.c
index f85cfba647f8..3cc2714fd5ae 100644
--- a/net/sched/sch_hfsc.c
+++ b/net/sched/sch_hfsc.c
@@ -59,7 +59,6 @@
 #include <linux/skbuff.h>
 #include <linux/string.h>
 #include <linux/slab.h>
-#include <linux/timer.h>
 #include <linux/list.h>
 #include <linux/rbtree.h>
 #include <linux/init.h>
@@ -192,7 +191,7 @@ struct hfsc_sched
         struct list_head droplist;              /* active leaf class list (for
                                                    dropping) */
         struct sk_buff_head requeue;            /* requeued packet */
-        struct timer_list wd_timer;             /* watchdog timer */
+        struct qdisc_watchdog watchdog;         /* watchdog timer */
 };
 
 #define HT_INFINITY     0xffffffffffffffffULL   /* infinite time value */
@@ -1434,21 +1433,11 @@ hfsc_walk(struct Qdisc *sch, struct qdisc_walker *arg)
 }
 
 static void
-hfsc_watchdog(unsigned long arg)
-{
-        struct Qdisc *sch = (struct Qdisc *)arg;
-
-        sch->flags &= ~TCQ_F_THROTTLED;
-        netif_schedule(sch->dev);
-}
-
-static void
-hfsc_schedule_watchdog(struct Qdisc *sch, u64 cur_time)
+hfsc_schedule_watchdog(struct Qdisc *sch)
 {
         struct hfsc_sched *q = qdisc_priv(sch);
         struct hfsc_class *cl;
         u64 next_time = 0;
-        long delay;
 
         if ((cl = eltree_get_minel(q)) != NULL)
                 next_time = cl->cl_e;
@@ -1457,11 +1446,7 @@ hfsc_schedule_watchdog(struct Qdisc *sch, u64 cur_time)
                         next_time = q->root.cl_cfmin;
         }
         WARN_ON(next_time == 0);
-        delay = next_time - cur_time;
-        delay = PSCHED_US2JIFFIE(delay);
-
-        sch->flags |= TCQ_F_THROTTLED;
-        mod_timer(&q->wd_timer, jiffies + delay);
+        qdisc_watchdog_schedule(&q->watchdog, next_time);
 }
 
 static int
@@ -1498,9 +1483,7 @@ hfsc_init_qdisc(struct Qdisc *sch, struct rtattr *opt)
 
         list_add(&q->root.hlist, &q->clhash[hfsc_hash(q->root.classid)]);
 
-        init_timer(&q->wd_timer);
-        q->wd_timer.function = hfsc_watchdog;
-        q->wd_timer.data = (unsigned long)sch;
+        qdisc_watchdog_init(&q->watchdog, sch);
 
         return 0;
 }
@@ -1570,8 +1553,7 @@ hfsc_reset_qdisc(struct Qdisc *sch)
         __skb_queue_purge(&q->requeue);
         q->eligible = RB_ROOT;
         INIT_LIST_HEAD(&q->droplist);
-        del_timer(&q->wd_timer);
-        sch->flags &= ~TCQ_F_THROTTLED;
+        qdisc_watchdog_cancel(&q->watchdog);
         sch->q.qlen = 0;
 }
 
@@ -1587,7 +1569,7 @@ hfsc_destroy_qdisc(struct Qdisc *sch)
                         hfsc_destroy_class(sch, cl);
         }
         __skb_queue_purge(&q->requeue);
-        del_timer(&q->wd_timer);
+        qdisc_watchdog_cancel(&q->watchdog);
 }
 
 static int
@@ -1673,7 +1655,7 @@ hfsc_dequeue(struct Qdisc *sch)
                 cl = vttree_get_minvt(&q->root, cur_time);
                 if (cl == NULL) {
                         sch->qstats.overlimits++;
-                        hfsc_schedule_watchdog(sch, cur_time);
+                        hfsc_schedule_watchdog(sch);
                         return NULL;
                 }
         }