net: Convert icmpv6_sk_ops, ndisc_net_ops and igmp6_net_ops

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These pernet_operations create and destroy net::ipv6.icmp_sk
socket, used to send ICMP or error reply.

Nobody can dereference the socket to handle a packet before
net is initialized, as there is no routing; nobody can do
that in parallel with exit, as all of devices are moved
to init_net or destroyed and there are no packets it-flight.
So, it's possible to mark these pernet_operations as async.

The same for ndisc_net_ops and for igmp6_net_ops. The last
one also creates and destroys /proc entries.

Signed-off-by: Kirill Tkhai <ktkhai@virtuozzo.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Kirill Tkhai 2018-02-19 11:48:57 +03:00 • committed by David S. Miller

parent b01a59a488

commit 1a2e93329d

3 changed files with 3 additions and 0 deletions

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1

net/ipv6/icmp.c

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1

net/ipv6/mcast.c

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1

net/ipv6/ndisc.c

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