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Commit 1a2e9332 authored by Kirill Tkhai's avatar Kirill Tkhai Committed by David S. Miller
Browse files

net: Convert icmpv6_sk_ops, ndisc_net_ops and igmp6_net_ops 



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: default avatarKirill Tkhai <ktkhai@virtuozzo.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent b01a59a4

net/ipv6/icmp.c

+1 −0
Original line number Diff line number Diff line
@@ -997,6 +997,7 @@ static void __net_exit icmpv6_sk_exit(struct net *net) 
static struct pernet_operations icmpv6_sk_ops = {

	.init = icmpv6_sk_init,

	.exit = icmpv6_sk_exit,

	.async = true,

};



int __init icmpv6_init(void)

net/ipv6/mcast.c

+1 −0
Original line number Diff line number Diff line
@@ -2997,6 +2997,7 @@ static void __net_exit igmp6_net_exit(struct net *net) 
static struct pernet_operations igmp6_net_ops = {

	.init = igmp6_net_init,

	.exit = igmp6_net_exit,

	.async = true,

};



int __init igmp6_init(void)

net/ipv6/ndisc.c

+1 −0
Original line number Diff line number Diff line
@@ -1882,6 +1882,7 @@ static void __net_exit ndisc_net_exit(struct net *net) 
static struct pernet_operations ndisc_net_ops = {

	.init = ndisc_net_init,

	.exit = ndisc_net_exit,

	.async = true,

};



int __init ndisc_init(void)