[PATCH 16/16] net: Convert iptable_filter_net_ops

[Kirill Tkhai]

These pernet_operations register and unregister
net::ipv4.iptable_filter table. Since there are
no packets in-flight at the time of exit method
is working, iptables rules should not be touched.
Also, pernet_operations should not send ipv4
packets each other. So, it's safe to mark them
async.

Signed-off-by: Kirill Tkhai <ktk...@virtuozzo.com>
---
 net/ipv4/netfilter/iptable_filter.c |    1 +
 1 file changed, 1 insertion(+)

diff --git a/net/ipv4/netfilter/iptable_filter.c 
b/net/ipv4/netfilter/iptable_filter.c
index 9ac92ea7b93c..c1c136a93911 100644
--- a/net/ipv4/netfilter/iptable_filter.c
+++ b/net/ipv4/netfilter/iptable_filter.c
@@ -87,6 +87,7 @@ static void __net_exit iptable_filter_net_exit(struct net 
*net)
 static struct pernet_operations iptable_filter_net_ops = {
        .init = iptable_filter_net_init,
        .exit = iptable_filter_net_exit,
+       .async = true,
 };
 
 static int __init iptable_filter_init(void)