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| 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/decnet | |
| parent | 76f793e3a47139d340185cbc1a314740c09b13d3 (diff) | |
| download | lwn-a9b3cd7f323b2e57593e7215362a7b02fc933e3a.tar.gz lwn-a9b3cd7f323b2e57593e7215362a7b02fc933e3a.zip | |
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/decnet')
| -rw-r--r-- | net/decnet/dn_dev.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/net/decnet/dn_dev.c b/net/decnet/dn_dev.c index ba4faceec405..2ab16e12520c 100644 --- a/net/decnet/dn_dev.c +++ b/net/decnet/dn_dev.c @@ -388,7 +388,7 @@ static int dn_dev_insert_ifa(struct dn_dev *dn_db, struct dn_ifaddr *ifa) } ifa->ifa_next = dn_db->ifa_list; - rcu_assign_pointer(dn_db->ifa_list, ifa); + RCU_INIT_POINTER(dn_db->ifa_list, ifa); dn_ifaddr_notify(RTM_NEWADDR, ifa); blocking_notifier_call_chain(&dnaddr_chain, NETDEV_UP, ifa); @@ -1093,7 +1093,7 @@ static struct dn_dev *dn_dev_create(struct net_device *dev, int *err) memcpy(&dn_db->parms, p, sizeof(struct dn_dev_parms)); - rcu_assign_pointer(dev->dn_ptr, dn_db); + RCU_INIT_POINTER(dev->dn_ptr, dn_db); dn_db->dev = dev; init_timer(&dn_db->timer); @@ -1101,7 +1101,7 @@ static struct dn_dev *dn_dev_create(struct net_device *dev, int *err) dn_db->neigh_parms = neigh_parms_alloc(dev, &dn_neigh_table); if (!dn_db->neigh_parms) { - rcu_assign_pointer(dev->dn_ptr, NULL); + RCU_INIT_POINTER(dev->dn_ptr, NULL); kfree(dn_db); return NULL; } |