tree eba1741956aef3015d5b1a07253bf93c4c1bc7df
parent 76f793e3a47139d340185cbc1a314740c09b13d3
author Stephen Hemminger <shemminger@vyatta.com> 1312215540 +0000
committer David S. Miller <davem@davemloft.net> 1312284563 -0700

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>