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net: Convert ctnetlink_net_ops

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These pernet_operations register and unregister
two conntrack notifiers, and they seem to be safe
to be executed in parallel.

General/not related to async pernet_operations JFI:
ctnetlink_net_exit_batch() actions are grouped in batch,
and this could look like there is synchronize_rcu()
is forgotten. But there is synchronize_rcu() on module
exit patch (in ctnetlink_exit()), so this batch may
be reworked as simple .exit method.

Signed-off-by: Kirill Tkhai <ktkhai@virtuozzo.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Kirill Tkhai 2018-03-05 14:32:15 +03:00 committed by David S. Miller
parent 467d14b307
commit b04a3d098c
1 changed files with 1 additions and 0 deletions
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net/netfilter/nf_conntrack_netlink.c
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@ -3417,6 +3417,7 @@ static void __net_exit ctnetlink_net_exit_batch(struct list_head *net_exit_list)
static struct pernet_operations ctnetlink_net_ops = {
.init = ctnetlink_net_init,
.exit_batch = ctnetlink_net_exit_batch,
.async = true,
};
static int __init ctnetlink_init(void)