diff options
author | Stephen Hemminger <shemminger@vyatta.com> | 2011-08-01 12:19:00 -0400 |
---|---|---|
committer | David S. Miller <davem@davemloft.net> | 2011-08-02 07:29:23 -0400 |
commit | a9b3cd7f323b2e57593e7215362a7b02fc933e3a (patch) | |
tree | eba1741956aef3015d5b1a07253bf93c4c1bc7df /net/8021q/vlan.c | |
parent | 76f793e3a47139d340185cbc1a314740c09b13d3 (diff) |
rcu: convert uses of rcu_assign_pointer(x, NULL) to RCU_INIT_POINTER
When assigning a NULL value to an RCU protected pointer, no barrier
is needed. The rcu_assign_pointer, used to handle that but will soon
change to not handle the special case.
Convert all rcu_assign_pointer of NULL value.
//smpl
@@ expression P; @@
- rcu_assign_pointer(P, NULL)
+ RCU_INIT_POINTER(P, NULL)
// </smpl>
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/8021q/vlan.c')
-rw-r--r-- | net/8021q/vlan.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/8021q/vlan.c b/net/8021q/vlan.c index 8970ba139d73..5471628d3ffe 100644 --- a/net/8021q/vlan.c +++ b/net/8021q/vlan.c | |||
@@ -133,7 +133,7 @@ void unregister_vlan_dev(struct net_device *dev, struct list_head *head) | |||
133 | if (grp->nr_vlans == 0) { | 133 | if (grp->nr_vlans == 0) { |
134 | vlan_gvrp_uninit_applicant(real_dev); | 134 | vlan_gvrp_uninit_applicant(real_dev); |
135 | 135 | ||
136 | rcu_assign_pointer(real_dev->vlgrp, NULL); | 136 | RCU_INIT_POINTER(real_dev->vlgrp, NULL); |
137 | 137 | ||
138 | /* Free the group, after all cpu's are done. */ | 138 | /* Free the group, after all cpu's are done. */ |
139 | call_rcu(&grp->rcu, vlan_rcu_free); | 139 | call_rcu(&grp->rcu, vlan_rcu_free); |