diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/net/addrconf.h | 10 | ||||
| -rw-r--r-- | include/net/if_inet6.h | 1 |
2 files changed, 5 insertions, 6 deletions
diff --git a/include/net/addrconf.h b/include/net/addrconf.h index 5fc8627435e..aa2ed8f0a9d 100644 --- a/include/net/addrconf.h +++ b/include/net/addrconf.h @@ -133,20 +133,18 @@ extern int unregister_inet6addr_notifier(struct notifier_block *nb); static inline struct inet6_dev * __in6_dev_get(struct net_device *dev) { - return (struct inet6_dev *)dev->ip6_ptr; + return rcu_dereference(dev->ip6_ptr); } -extern rwlock_t addrconf_lock; - static inline struct inet6_dev * in6_dev_get(struct net_device *dev) { struct inet6_dev *idev = NULL; - read_lock(&addrconf_lock); - idev = dev->ip6_ptr; + rcu_read_lock(); + idev = __in6_dev_get(dev); if (idev) atomic_inc(&idev->refcnt); - read_unlock(&addrconf_lock); + rcu_read_unlock(); return idev; } diff --git a/include/net/if_inet6.h b/include/net/if_inet6.h index e459e1a0ae4..34489c13c11 100644 --- a/include/net/if_inet6.h +++ b/include/net/if_inet6.h @@ -189,6 +189,7 @@ struct inet6_dev struct ipv6_devconf cnf; struct ipv6_devstat stats; unsigned long tstamp; /* ipv6InterfaceTable update timestamp */ + struct rcu_head rcu; }; extern struct ipv6_devconf ipv6_devconf; |