netdev - [PATCH net-next 3/6] net: Convert ovs_net

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Date:   Thu, 15 Mar 2018 12:11:16 +0300
From:   Kirill Tkhai <ktkhai@...tuozzo.com>
To:     davem@...emloft.net, wensong@...ux-vs.org, horms@...ge.net.au,
        ja@....bg, pablo@...filter.org, kadlec@...ckhole.kfki.hu,
        fw@...len.de, pshelar@....org, g.nault@...halink.fr,
        jchapman@...alix.com, lorenzo.bianconi@...hat.com,
        dwindsor@...il.com, elena.reshetova@...el.com, dsahern@...il.com,
        roopa@...ulusnetworks.com, rshearma@...cade.com,
        dan.j.williams@...el.com, amine.kherbouche@...nd.com,
        netdev@...r.kernel.org, lvs-devel@...r.kernel.org,
        netfilter-devel@...r.kernel.org, dev@...nvswitch.org,
        ktkhai@...tuozzo.com
Subject: [PATCH net-next 3/6] net: Convert ovs_net_ops

These pernet_operations initialize and destroy net_generic()
data pointed by ovs_net_id. Exit method destroys vports from
alive net to exiting net. Since they are only pernet_operations
interested in this data, and exit method is executed under
exclusive global lock (ovs_mutex), they are safe to be executed
in parallel.

Signed-off-by: Kirill Tkhai <ktkhai@...tuozzo.com>
---
 net/openvswitch/datapath.c |    1 +
 1 file changed, 1 insertion(+)

diff --git a/net/openvswitch/datapath.c b/net/openvswitch/datapath.c
index ef38e5aecd28..100191df0371 100644
--- a/net/openvswitch/datapath.c
+++ b/net/openvswitch/datapath.c
@@ -2384,6 +2384,7 @@ static struct pernet_operations ovs_net_ops = {
 	.exit = ovs_exit_net,
 	.id   = &ovs_net_id,
 	.size = sizeof(struct ovs_net),
+	.async = true,
 };
 
 static int __init dp_init(void)