From: Stephen Hemminger <shemminger@vyatta.com>
Date: Mon, 1 Aug 2011 16:19:00 +0000 (+0000)
Subject: rcu: convert uses of rcu_assign_pointer(x, NULL) to RCU_INIT_POINTER
X-Git-Tag: v3.2-rc1~129^2~584
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a9b3cd7f323b2e57593e7215362a7b02fc933e3a;p=pandora-kernel.git

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>
---

Reading git-diff-tree failed