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| author | YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> | 2006-09-22 14:44:24 -0700 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2006-09-22 15:20:26 -0700 |
| commit | 8814c4b533817df825485ff32ce6ac406c3a54d1 (patch) | |
| tree | b72cc3513e7dc4b60e98c7ddebe76bca188f88fc /include/net/addrconf.h | |
| parent | fbea49e1e2404baa2d88ab47e2db89e49551b53b (diff) | |
| download | lwn-8814c4b533817df825485ff32ce6ac406c3a54d1.tar.gz lwn-8814c4b533817df825485ff32ce6ac406c3a54d1.zip | |
[IPV6] ADDRCONF: Convert addrconf_lock to RCU.
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/addrconf.h')
| -rw-r--r-- | include/net/addrconf.h | 10 |
1 files changed, 4 insertions, 6 deletions
diff --git a/include/net/addrconf.h b/include/net/addrconf.h index 5fc8627435eb..aa2ed8f0a9dd 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; } |