netdev - [PATCH net-next 06/12] net: Convert dccp_v4

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Date:   Mon, 05 Mar 2018 14:31:28 +0300
From:   Kirill Tkhai <ktkhai@...tuozzo.com>
To:     pablo@...filter.org, kadlec@...ckhole.kfki.hu, fw@...len.de,
        stephen@...workplumber.org, davem@...emloft.net,
        dmitry.tarnyagin@...kless.no, socketcan@...tkopp.net,
        mkl@...gutronix.de, gerrit@....abdn.ac.uk, yoshfuji@...ux-ipv6.org,
        johannes.berg@...el.com, garsilva@...eddedor.com,
        ross.lagerwall@...rix.com, aconole@...heb.org,
        netdev@...r.kernel.org, ktkhai@...tuozzo.com
Subject: [PATCH net-next 06/12] 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@...tuozzo.com>
---
 net/dccp/ipv4.c |    1 +
 1 file changed, 1 insertion(+)

diff --git a/net/dccp/ipv4.c b/net/dccp/ipv4.c
index e65fcb45c3f6..13ad28ab1e79 100644
--- 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)