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path: root/net/ipv4/netfilter/ip_conntrack_standalone.c
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Diffstat (limited to 'net/ipv4/netfilter/ip_conntrack_standalone.c')
-rw-r--r--net/ipv4/netfilter/ip_conntrack_standalone.c9
1 files changed, 4 insertions, 5 deletions
diff --git a/net/ipv4/netfilter/ip_conntrack_standalone.c b/net/ipv4/netfilter/ip_conntrack_standalone.c
index 300ccbbbdac9..c7c1ec61b0f5 100644
--- a/net/ipv4/netfilter/ip_conntrack_standalone.c
+++ b/net/ipv4/netfilter/ip_conntrack_standalone.c
@@ -796,7 +796,7 @@ int ip_conntrack_protocol_register(struct ip_conntrack_protocol *proto)
ret = -EBUSY;
goto out;
}
- ip_ct_protos[proto->proto] = proto;
+ rcu_assign_pointer(ip_ct_protos[proto->proto], proto);
out:
write_unlock_bh(&ip_conntrack_lock);
return ret;
@@ -805,11 +805,10 @@ int ip_conntrack_protocol_register(struct ip_conntrack_protocol *proto)
void ip_conntrack_protocol_unregister(struct ip_conntrack_protocol *proto)
{
write_lock_bh(&ip_conntrack_lock);
- ip_ct_protos[proto->proto] = &ip_conntrack_generic_protocol;
+ rcu_assign_pointer(ip_ct_protos[proto->proto],
+ &ip_conntrack_generic_protocol);
write_unlock_bh(&ip_conntrack_lock);
-
- /* Somebody could be still looking at the proto in bh. */
- synchronize_net();
+ synchronize_rcu();
/* Remove all contrack entries for this protocol */
ip_ct_iterate_cleanup(kill_proto, &proto->proto);