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authorEric Dumazet <eric.dumazet@gmail.com>2010-10-24 21:31:58 +0000
committerDavid S. Miller <davem@davemloft.net>2010-10-25 13:09:43 -0700
commitb616b09afabf6d569aa31176aa86f05d2586de3e (patch)
tree9765278f9825a612c27fea34aba0c614594b88c5 /net/8021q/vlan.c
parent5202e173d7bc5ff832a4f36e66f26e00feb343c6 (diff)
downloadlwn-b616b09afabf6d569aa31176aa86f05d2586de3e.tar.gz
lwn-b616b09afabf6d569aa31176aa86f05d2586de3e.zip
vlan: rcu annotations
(struct net_device)->vlgrp is rcu protected : add __rcu annotation and proper rcu primitives. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/8021q/vlan.c')
-rw-r--r--net/8021q/vlan.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/net/8021q/vlan.c b/net/8021q/vlan.c
index 05b867e43757..52077ca22072 100644
--- a/net/8021q/vlan.c
+++ b/net/8021q/vlan.c
@@ -112,7 +112,7 @@ void unregister_vlan_dev(struct net_device *dev, struct list_head *head)
ASSERT_RTNL();
- grp = real_dev->vlgrp;
+ grp = rtnl_dereference(real_dev->vlgrp);
BUG_ON(!grp);
/* Take it out of our own structures, but be sure to interlock with
@@ -177,7 +177,7 @@ int register_vlan_dev(struct net_device *dev)
struct vlan_group *grp, *ngrp = NULL;
int err;
- grp = real_dev->vlgrp;
+ grp = rtnl_dereference(real_dev->vlgrp);
if (!grp) {
ngrp = grp = vlan_group_alloc(real_dev);
if (!grp)
@@ -385,7 +385,7 @@ static int vlan_device_event(struct notifier_block *unused, unsigned long event,
dev->netdev_ops->ndo_vlan_rx_add_vid(dev, 0);
}
- grp = dev->vlgrp;
+ grp = rtnl_dereference(dev->vlgrp);
if (!grp)
goto out;