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authorStephen Hemminger <shemminger@vyatta.com>2011-08-01 16:19:00 +0000
committerDavid S. Miller <davem@davemloft.net>2011-08-02 04:29:23 -0700
commita9b3cd7f323b2e57593e7215362a7b02fc933e3a (patch)
treeeba1741956aef3015d5b1a07253bf93c4c1bc7df /net/ipv6/raw.c
parent76f793e3a47139d340185cbc1a314740c09b13d3 (diff)
downloadop-kernel-dev-a9b3cd7f323b2e57593e7215362a7b02fc933e3a.zip
op-kernel-dev-a9b3cd7f323b2e57593e7215362a7b02fc933e3a.tar.gz
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/raw.c')
-rw-r--r--net/ipv6/raw.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c
index 6a79f308..4f45dc9 100644
--- a/net/ipv6/raw.c
+++ b/net/ipv6/raw.c
@@ -130,14 +130,14 @@ static mh_filter_t __rcu *mh_filter __read_mostly;
int rawv6_mh_filter_register(mh_filter_t filter)
{
- rcu_assign_pointer(mh_filter, filter);
+ RCU_INIT_POINTER(mh_filter, filter);
return 0;
}
EXPORT_SYMBOL(rawv6_mh_filter_register);
int rawv6_mh_filter_unregister(mh_filter_t filter)
{
- rcu_assign_pointer(mh_filter, NULL);
+ RCU_INIT_POINTER(mh_filter, NULL);
synchronize_rcu();
return 0;
}
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