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>
diff --git a/net/phonet/socket.c b/net/phonet/socket.c
index ab07711..676d18d 100644
--- a/net/phonet/socket.c
+++ b/net/phonet/socket.c
@@ -679,7 +679,7 @@
mutex_lock(&resource_mutex);
if (pnres.sk[res] == NULL) {
sock_hold(sk);
- rcu_assign_pointer(pnres.sk[res], sk);
+ RCU_INIT_POINTER(pnres.sk[res], sk);
ret = 0;
}
mutex_unlock(&resource_mutex);
@@ -695,7 +695,7 @@
mutex_lock(&resource_mutex);
if (pnres.sk[res] == sk) {
- rcu_assign_pointer(pnres.sk[res], NULL);
+ RCU_INIT_POINTER(pnres.sk[res], NULL);
ret = 0;
}
mutex_unlock(&resource_mutex);
@@ -714,7 +714,7 @@
mutex_lock(&resource_mutex);
for (res = 0; res < 256; res++) {
if (pnres.sk[res] == sk) {
- rcu_assign_pointer(pnres.sk[res], NULL);
+ RCU_INIT_POINTER(pnres.sk[res], NULL);
match++;
}
}