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rcu: convert uses of rcu_assign_pointer(x, NULL) to RCU_INIT_POINTER

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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>
This commit is contained in:
Stephen Hemminger
2011-08-01 16:19:00 +00:00
committed by David S. Miller
parent 76f793e3a4
commit a9b3cd7f32
55 changed files with 193 additions and 193 deletions
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2
net/core/fib_rules.c
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@@ -487,7 +487,7 @@ static int fib_nl_delrule(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg)
if (ops->nr_goto_rules > 0) {
list_for_each_entry(tmp, &ops->rules_list, list) {
if (rtnl_dereference(tmp->ctarget) == rule) {
rcu_assign_pointer(tmp->ctarget, NULL);
RCU_INIT_POINTER(tmp->ctarget, NULL);
ops->unresolved_rules++;
}
}