diff options
| author | Stephen Hemminger <shemminger@vyatta.com> | 2011-08-01 16:19:00 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2011-08-02 04:29:23 -0700 |
| commit | a9b3cd7f323b2e57593e7215362a7b02fc933e3a (patch) | |
| tree | eba1741956aef3015d5b1a07253bf93c4c1bc7df /net/ipv6/addrconf.c | |
| parent | 76f793e3a47139d340185cbc1a314740c09b13d3 (diff) | |
rcu: convert uses of rcu_assign_pointer(x, NULL) to RCU_INIT_POINTER
When assigning a NULL value to an RCU protected pointer, no barrier
is needed. The rcu_assign_pointer, used to handle that but will soon
change to not handle the special case.
Convert all rcu_assign_pointer of NULL value.
//smpl
@@ expression P; @@
- rcu_assign_pointer(P, NULL)
+ RCU_INIT_POINTER(P, NULL)
// </smpl>
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6/addrconf.c')
| -rw-r--r-- | net/ipv6/addrconf.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c index 9a852156a8f..7d82123b1d2 100644 --- a/net/ipv6/addrconf.c +++ b/net/ipv6/addrconf.c @@ -428,7 +428,7 @@ static struct inet6_dev * ipv6_add_dev(struct net_device *dev) ndev->tstamp = jiffies; addrconf_sysctl_register(ndev); /* protected by rtnl_lock */ - rcu_assign_pointer(dev->ip6_ptr, ndev); + RCU_INIT_POINTER(dev->ip6_ptr, ndev); /* Join all-node multicast group */ ipv6_dev_mc_inc(dev, &in6addr_linklocal_allnodes); @@ -2733,7 +2733,7 @@ static int addrconf_ifdown(struct net_device *dev, int how) idev->dead = 1; /* protected by rtnl_lock */ - rcu_assign_pointer(dev->ip6_ptr, NULL); + RCU_INIT_POINTER(dev->ip6_ptr, NULL); /* Step 1.5: remove snmp6 entry */ snmp6_unregister_dev(idev); |