pkt_sched: Revert tasklet_hrtimer changes.

These are full of unresolved problems, mainly that conversions don't
work 1-1 from hrtimers to tasklet_hrtimers because unlike hrtimers
tasklets can't be killed from softirq context.

And when a qdisc gets reset, that's exactly what we need to do here.

We'll work this out in the net-next-2.6 tree and if warranted we'll
backport that work to -stable.

This reverts the following 3 changesets:

a2cb6a4dd470d7a64255a10b843b0d188416b78f
("pkt_sched: Fix bogon in tasklet_hrtimer changes.")

38acce2d7983632100a9ff3fd20295f6e34074a8
("pkt_sched: Convert CBQ to tasklet_hrtimer.")

ee5f9757ea17759e1ce5503bdae2b07e48e32af9
("pkt_sched: Convert qdisc_watchdog to tasklet_hrtimer")

Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 5 insertions, 5 deletions

diff --git a/net/sched/sch_api.c b/net/sched/sch_api.c
index 92e6f3a..24d17ce 100644
--- a/net/sched/sch_api.c
+++ b/net/sched/sch_api.c
@@ -458,7 +458,7 @@ EXPORT_SYMBOL(qdisc_warn_nonwc);
 static enum hrtimer_restart qdisc_watchdog(struct hrtimer *timer)
 {
 	struct qdisc_watchdog *wd = container_of(timer, struct qdisc_watchdog,
-						 timer.timer);
+						 timer);
 
 	wd->qdisc->flags &= ~TCQ_F_THROTTLED;
 	__netif_schedule(qdisc_root(wd->qdisc));
@@ -468,8 +468,8 @@ static enum hrtimer_restart qdisc_watchdog(struct hrtimer *timer)
 
 void qdisc_watchdog_init(struct qdisc_watchdog *wd, struct Qdisc *qdisc)
 {
-	tasklet_hrtimer_init(&wd->timer, qdisc_watchdog,
-			     CLOCK_MONOTONIC, HRTIMER_MODE_ABS);
+	hrtimer_init(&wd->timer, CLOCK_MONOTONIC, HRTIMER_MODE_ABS);
+	wd->timer.function = qdisc_watchdog;
 	wd->qdisc = qdisc;
 }
 EXPORT_SYMBOL(qdisc_watchdog_init);
@@ -485,13 +485,13 @@ void qdisc_watchdog_schedule(struct qdisc_watchdog *wd, psched_time_t expires)
 	wd->qdisc->flags |= TCQ_F_THROTTLED;
 	time = ktime_set(0, 0);
 	time = ktime_add_ns(time, PSCHED_TICKS2NS(expires));
-	tasklet_hrtimer_start(&wd->timer, time, HRTIMER_MODE_ABS);
+	hrtimer_start(&wd->timer, time, HRTIMER_MODE_ABS);
 }
 EXPORT_SYMBOL(qdisc_watchdog_schedule);
 
 void qdisc_watchdog_cancel(struct qdisc_watchdog *wd)
 {
-	tasklet_hrtimer_cancel(&wd->timer);
+	hrtimer_cancel(&wd->timer);
 	wd->qdisc->flags &= ~TCQ_F_THROTTLED;
 }
 EXPORT_SYMBOL(qdisc_watchdog_cancel);