linux-kernel - [PATCH v2 18/31] net: Convert pernet_subsys ops, registered via net_dev

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Date:   Mon, 20 Nov 2017 21:35:02 +0300
From:   Kirill Tkhai <ktkhai@...tuozzo.com>
To:     davem@...emloft.net, vyasevic@...hat.com,
        kstewart@...uxfoundation.org, pombredanne@...b.com,
        vyasevich@...il.com, mark.rutland@....com,
        gregkh@...uxfoundation.org, adobriyan@...il.com, fw@...len.de,
        nicolas.dichtel@...nd.com, xiyou.wangcong@...il.com,
        roman.kapl@...go.com, paul@...l-moore.com, dsahern@...il.com,
        daniel@...earbox.net, lucien.xin@...il.com,
        mschiffer@...verse-factory.net, rshearma@...cade.com,
        linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
        ktkhai@...tuozzo.com, ebiederm@...ssion.com, avagin@...tuozzo.com,
        gorcunov@...tuozzo.com, eric.dumazet@...il.com,
        stephen@...workplumber.org, ktkhai@...tuozzo.com
Subject: [PATCH v2 18/31] net: Convert pernet_subsys ops,
 registered via net_dev_init()

There are:
1)dev_proc_ops and dev_mc_net_ops, which create and destroy
pernet proc file and not interested to another net namespaces;
2)netdev_net_ops, which creates pernet hash, which is not
touched by another pernet_operations.

So, make them async.

Signed-off-by: Kirill Tkhai <ktkhai@...tuozzo.com>
---
 net/core/dev.c        |    1 +
 net/core/net-procfs.c |    2 ++
 2 files changed, 3 insertions(+)

diff --git a/net/core/dev.c b/net/core/dev.c
index 8ee29f4f5fa9..41a576a17430 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -8656,6 +8656,7 @@ static void __net_exit netdev_exit(struct net *net)
 static struct pernet_operations __net_initdata netdev_net_ops = {
 	.init = netdev_init,
 	.exit = netdev_exit,
+	.async = true,
 };
 
 static void __net_exit default_device_exit(struct net *net)
diff --git a/net/core/net-procfs.c b/net/core/net-procfs.c
index 615ccab55f38..16b250dd50ed 100644
--- a/net/core/net-procfs.c
+++ b/net/core/net-procfs.c
@@ -352,6 +352,7 @@ static void __net_exit dev_proc_net_exit(struct net *net)
 static struct pernet_operations __net_initdata dev_proc_ops = {
 	.init = dev_proc_net_init,
 	.exit = dev_proc_net_exit,
+	.async = true,
 };
 
 static int dev_mc_seq_show(struct seq_file *seq, void *v)
@@ -409,6 +410,7 @@ static void __net_exit dev_mc_net_exit(struct net *net)
 static struct pernet_operations __net_initdata dev_mc_net_ops = {
 	.init = dev_mc_net_init,
 	.exit = dev_mc_net_exit,
+	.async = true,
 };
 
 int __init dev_proc_init(void)