diff options
| 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/netfilter/nf_queue.c | |
| parent | 76f793e3a47139d340185cbc1a314740c09b13d3 (diff) | |
| download | linux-a9b3cd7f323b2e57593e7215362a7b02fc933e3a.tar.gz | |
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/netfilter/nf_queue.c')
| -rw-r--r-- | net/netfilter/nf_queue.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/net/netfilter/nf_queue.c b/net/netfilter/nf_queue.c index 5b466cd1272fea..c1894ae196ded6 100644 --- a/net/netfilter/nf_queue.c +++ b/net/netfilter/nf_queue.c @@ -40,7 +40,7 @@ int nf_register_queue_handler(u_int8_t pf, const struct nf_queue_handler *qh) else if (old) ret = -EBUSY; else { - rcu_assign_pointer(queue_handler[pf], qh); + RCU_INIT_POINTER(queue_handler[pf], qh); ret = 0; } mutex_unlock(&queue_handler_mutex); @@ -65,7 +65,7 @@ int nf_unregister_queue_handler(u_int8_t pf, const struct nf_queue_handler *qh) return -EINVAL; } - rcu_assign_pointer(queue_handler[pf], NULL); + RCU_INIT_POINTER(queue_handler[pf], NULL); mutex_unlock(&queue_handler_mutex); synchronize_rcu(); @@ -84,7 +84,7 @@ void nf_unregister_queue_handlers(const struct nf_queue_handler *qh) queue_handler[pf], lockdep_is_held(&queue_handler_mutex) ) == qh) - rcu_assign_pointer(queue_handler[pf], NULL); + RCU_INIT_POINTER(queue_handler[pf], NULL); } mutex_unlock(&queue_handler_mutex); |