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authorEric Dumazet <eric.dumazet@gmail.com>2010-12-01 04:37:42 +0300
committerDavid S. Miller <davem@davemloft.net>2010-12-06 23:59:05 +0300
commit06a9701f4b3e3381dea96fee1cc8a3bb41b0a1f1 (patch)
treea6cb5d4635b16e9ff450b5e3533b2b27f8de48aa /include/linux/inetdevice.h
parentda2033c282264bfba4e339b7cb3df62adb5c5fc8 (diff)
downloadlinux-06a9701f4b3e3381dea96fee1cc8a3bb41b0a1f1.tar.xz
__in_dev_get_rtnl() can use rtnl_dereference()
If caller holds RTNL, we dont need a memory barrier (smp_read_barrier_depends) included in rcu_dereference(). Just use rtnl_dereference() to properly document the assertions. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/inetdevice.h')
-rw-r--r--include/linux/inetdevice.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/inetdevice.h b/include/linux/inetdevice.h
index 2b86eaf11773..ae8fdc54e0c0 100644
--- a/include/linux/inetdevice.h
+++ b/include/linux/inetdevice.h
@@ -222,7 +222,7 @@ static inline struct in_device *in_dev_get(const struct net_device *dev)
static inline struct in_device *__in_dev_get_rtnl(const struct net_device *dev)
{
- return rcu_dereference_check(dev->ip_ptr, lockdep_rtnl_is_held());
+ return rtnl_dereference(dev->ip_ptr);
}
extern void in_dev_finish_destroy(struct in_device *idev);