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From: Patrick McHardy <kaber@trash.net>
To: davem@davemloft.net
Cc: netdev@vger.kernel.org, Patrick McHardy <kaber@trash.net>
Subject: [NET_SCHED 10/11]: qdisc: remove unnecessary memory barriers
Date: Fri, 23 Mar 2007 14:35:52 +0100 (MET)	[thread overview]
Message-ID: <20070323133527.10264.10728.sendpatchset@localhost.localdomain> (raw)
In-Reply-To: <20070323133513.10264.16515.sendpatchset@localhost.localdomain>

[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>

---
commit e2459acd7dee06fb4d5e980f26c23d31db0e5de1
tree 47287fb285e9d920392863121e88e69e45779cbb
parent 8da4bcec7e54c8344c8fd77c72a61f24ce12cfc3
author Patrick McHardy <kaber@trash.net> Fri, 23 Mar 2007 10:31:31 +0100
committer Patrick McHardy <kaber@trash.net> Fri, 23 Mar 2007 10:31:31 +0100

 net/sched/sch_api.c |    2 --
 1 files changed, 0 insertions(+), 2 deletions(-)

diff --git a/net/sched/sch_api.c b/net/sched/sch_api.c
index 5b5bce0..2e863bd 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);
 

  parent reply	other threads:[~2007-03-23 13:35 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-03-23 13:35 [NET_SCHED 00/11]: pkt_sched.h cleanup + misc changes Patrick McHardy
2007-03-23 13:35 ` [NET_SCHED 01/11]: sch_netem: fix off-by-one in send time comparison Patrick McHardy
2007-03-23 16:34   ` Stephen Hemminger
2007-03-23 13:35 ` [NET_SCHED 02/11]: kill PSCHED_AUDIT_TDIFF Patrick McHardy
2007-03-23 13:35 ` [NET_SCHED 03/11]: kill PSCHED_TADD/PSCHED_TADD2 Patrick McHardy
2007-03-23 13:35 ` [NET_SCHED 04/11]: kill PSCHED_TLESS Patrick McHardy
2007-03-23 13:35 ` [NET_SCHED 05/11]: kill PSCHED_SET_PASTPERFECT/PSCHED_IS_PASTPERFECT Patrick McHardy
2007-03-23 13:35 ` [NET_SCHED 06/11]: kill PSCHED_TDIFF Patrick McHardy
2007-03-23 13:35 ` [NET_SCHED 07/11]: turn PSCHED_TDIFF_SAFE into inline function Patrick McHardy
2007-03-23 13:35 ` [NET_SCHED 08/11]: turn PSCHED_GET_TIME " Patrick McHardy
2007-03-23 13:35 ` [NET_SCHED 09/11]: Unline tcf_destroy Patrick McHardy
2007-03-23 13:35 ` Patrick McHardy [this message]
2007-03-23 13:35 ` [NET_SCHED 11/11]: qdisc: avoid dequeue while throttled Patrick McHardy
2007-03-23 14:39   ` Patrick McHardy
2007-03-23 14:57     ` Patrick McHardy
2007-03-23 18:26       ` David Miller
2007-03-23 18:30 ` [NET_SCHED 00/11]: pkt_sched.h cleanup + misc changes David Miller

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