net: Convert dccp_v4_ops

These pernet_operations create and destroy net::dccp::v4_ctl_sk.
It looks like another pernet_operations don't want to send
dccp packets to dying or creating net. Batch method similar
to ipv4/ipv6 sockets and it has to be safe to be executed
in parallel with anything else. So, we mark them as async.

Signed-off-by: Kirill Tkhai <ktkhai@virtuozzo.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/dccp/ipv4.c b/net/dccp/ipv4.c
index e65fcb45c3f6c1edc70fc9898ebe6404175b102f..13ad28ab1e799e32cf6ed4461a3c0e943717a951 100644 (file)
--- a/net/dccp/ipv4.c
+++ b/net/dccp/ipv4.c
@@ -1031,6 +1031,7 @@ static struct pernet_operations dccp_v4_ops = {
        .init   = dccp_v4_init_net,
        .exit   = dccp_v4_exit_net,
        .exit_batch = dccp_v4_exit_batch,
+       .async  = true,
 };
 
 static int __init dccp_v4_init(void)