From c95e939508e64863a1c5c73a9e1a908784e06820 Mon Sep 17 00:00:00 2001
From: Patrick McHardy <kaber@trash.net>
Date: Fri, 23 Mar 2007 11:30:04 -0700
Subject: [PATCH] [NET_SCHED]: qdisc: remove unnecessary memory barriers
We're holding dev->queue_lock in qdisc_watchdog_schedule and
qdisc_watchdog_cancel, no need for the barriers.
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
net/sched/sch_api.c | 2 --
1 file changed, 2 deletions(-)
diff --git a/net/sched/sch_api.c b/net/sched/sch_api.c
index 5b5bce0694e2..2e863bdaa9a1 100644
--- a/net/sched/sch_api.c
+++ b/net/sched/sch_api.c
@@ -322,7 +322,6 @@ void qdisc_watchdog_schedule(struct qdisc_watchdog *wd, psched_time_t expires)
ktime_t time;
wd->qdisc->flags |= TCQ_F_THROTTLED;
- smp_wmb();
time = ktime_set(0, 0);
time = ktime_add_ns(time, PSCHED_US2NS(expires));
hrtimer_start(&wd->timer, time, HRTIMER_MODE_ABS);
@@ -333,7 +332,6 @@ void qdisc_watchdog_cancel(struct qdisc_watchdog *wd)
{
hrtimer_cancel(&wd->timer);
wd->qdisc->flags &= ~TCQ_F_THROTTLED;
- smp_wmb();
}
EXPORT_SYMBOL(qdisc_watchdog_cancel);
--
GitLab