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 <ktk...@virtuozzo.com>
---
net/netfilter/nf_conntrack_netlink.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/net/netfilter/nf_conntrack_netlink.c
b/net/netfilter/nf_conntrack_netlink.c
index dd177ebee9aa..8884d302d33a 100644
--- a/net/netfilter/nf_conntrack_netlink.c
+++ b/net/netfilter/nf_conntrack_netlink.c
@@ -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)
