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-rw-r--r--include/net/pkt_sched.h1
-rw-r--r--net/sched/sch_api.c4
-rw-r--r--net/sched/sch_htb.c13
3 files changed, 8 insertions, 10 deletions
diff --git a/include/net/pkt_sched.h b/include/net/pkt_sched.h
index 401038d2f9b8..fea53f4d92ca 100644
--- a/include/net/pkt_sched.h
+++ b/include/net/pkt_sched.h
@@ -61,6 +61,7 @@ psched_tdiff_bounded(psched_time_t tv1, psched_time_t tv2, psched_time_t bound)
}
struct qdisc_watchdog {
+ u64 last_expires;
struct hrtimer timer;
struct Qdisc *qdisc;
};
diff --git a/net/sched/sch_api.c b/net/sched/sch_api.c
index 64f71a2155f3..ddf047df5361 100644
--- a/net/sched/sch_api.c
+++ b/net/sched/sch_api.c
@@ -607,6 +607,10 @@ void qdisc_watchdog_schedule_ns(struct qdisc_watchdog *wd, u64 expires, bool thr
if (throttle)
qdisc_throttled(wd->qdisc);
+ if (wd->last_expires == expires)
+ return;
+
+ wd->last_expires = expires;
hrtimer_start(&wd->timer,
ns_to_ktime(expires),
HRTIMER_MODE_ABS_PINNED);
diff --git a/net/sched/sch_htb.c b/net/sched/sch_htb.c
index f6bf5818ed4d..d4b4218af6b1 100644
--- a/net/sched/sch_htb.c
+++ b/net/sched/sch_htb.c
@@ -928,17 +928,10 @@ ok:
}
}
qdisc_qstats_overlimit(sch);
- if (likely(next_event > q->now)) {
- if (!test_bit(__QDISC_STATE_DEACTIVATED,
- &qdisc_root_sleeping(q->watchdog.qdisc)->state)) {
- ktime_t time = ns_to_ktime(next_event);
- qdisc_throttled(q->watchdog.qdisc);
- hrtimer_start(&q->watchdog.timer, time,
- HRTIMER_MODE_ABS_PINNED);
- }
- } else {
+ if (likely(next_event > q->now))
+ qdisc_watchdog_schedule_ns(&q->watchdog, next_event, true);
+ else
schedule_work(&q->work);
- }
fin:
return skb;
}