[NETFILTER]: nf_log: use rcu_assign_pointer for RCU protected pointer

Also replace synchronize_net() calls by synchronize_rcu() since the
RCU protected data is also used for sysfs.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/netfilter/nf_log.c b/net/netfilter/nf_log.c
index 07e28e0..a3ff88d 100644 (file)
--- a/net/netfilter/nf_log.c
+++ b/net/netfilter/nf_log.c
@@ -46,11 +46,11 @@ int nf_log_unregister_pf(int pf)
                return -EINVAL;
 
        spin_lock(&nf_log_lock);
-       nf_logging[pf] = NULL;
+       rcu_assign_pointer(nf_logging[pf], NULL);
        spin_unlock(&nf_log_lock);
 
        /* Give time to concurrent readers. */
-       synchronize_net();
+       synchronize_rcu();
 
        return 0;
 }
@@ -63,11 +63,11 @@ void nf_log_unregister_logger(struct nf_logger *logger)
        spin_lock(&nf_log_lock);
        for (i = 0; i < NPROTO; i++) {
                if (nf_logging[i] == logger)
-                       nf_logging[i] = NULL;
+                       rcu_assign_pointer(nf_logging[i], NULL);
        }
        spin_unlock(&nf_log_lock);
 
-       synchronize_net();
+       synchronize_rcu();
 }
 EXPORT_SYMBOL(nf_log_unregister_logger);