commit f7a54c13c7b072d9426bd5cec1cdb8306df5ef55
author Jarek Poplawski <jarkao2@gmail.com> Wed Aug 27 02:22:07 2008 -0700
committer David S. Miller <davem@davemloft.net> Wed Aug 27 02:22:07 2008 -0700
tree 12134183d09f0826e0488fd281e6c0b830270d37
parent 666d9bbedfff7c2c37eab92e715641922dee6864

pkt_sched: Use rcu_assign_pointer() to change dev_queue->qdisc

These pointers are RCU protected, so proper primitives should be used.

Signed-off-by: Jarek Poplawski <jarkao2@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/sched/sch_api.c

diff --git a/net/sched/sch_api.c b/net/sched/sch_api.c
index 341d558..ad9cda1 100644
--- a/net/sched/sch_api.c
+++ b/net/sched/sch_api.c
@@ -635,7 +635,7 @@
 	if (qdisc == NULL)
 		qdisc = &noop_qdisc;
 	dev_queue->qdisc_sleeping = qdisc;
-	dev_queue->qdisc = &noop_qdisc;
+	rcu_assign_pointer(dev_queue->qdisc, &noop_qdisc);
 
 	spin_unlock_bh(root_lock);