Commit a5ea6169 authored by Patrick McHardy's avatar Patrick McHardy Committed by David S. Miller
Browse files

[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: default avatarPatrick McHardy <kaber@trash.net>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent fd706d69

net/netfilter/nf_log.c

+4 −4
Original line number Diff line number Diff line
@@ -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);