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| author | Eric Dumazet <eric.dumazet@gmail.com> | 2010-10-24 21:31:58 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-10-25 13:09:43 -0700 |
| commit | b616b09afabf6d569aa31176aa86f05d2586de3e (patch) | |
| tree | 9765278f9825a612c27fea34aba0c614594b88c5 | |
| parent | 5202e173d7bc5ff832a4f36e66f26e00feb343c6 (diff) | |
| download | op-kernel-dev-b616b09afabf6d569aa31176aa86f05d2586de3e.zip op-kernel-dev-b616b09afabf6d569aa31176aa86f05d2586de3e.tar.gz | |
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>
| -rw-r--r-- | include/linux/netdevice.h | 2 | ||||
| -rw-r--r-- | net/8021q/vlan.c | 6 |
2 files changed, 4 insertions, 4 deletions
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index fcd3dda..ceefb441 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -944,7 +944,7 @@ struct net_device { /* Protocol specific pointers */ #if defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE) - struct vlan_group *vlgrp; /* VLAN group */ + struct vlan_group __rcu *vlgrp; /* VLAN group */ #endif #ifdef CONFIG_NET_DSA void *dsa_ptr; /* dsa specific data */ diff --git a/net/8021q/vlan.c b/net/8021q/vlan.c index 05b867e..52077ca 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; |
