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| author | Kirill Tkhai <ktkhai@virtuozzo.com> | 2018-02-19 11:48:57 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-02-19 14:19:10 -0500 |
| commit | 1a2e93329dd413585798c122aac0607093b2d379 (patch) | |
| tree | d0bc1140701a0ccde4eace06347c9ef59f87819a /net/ipv6 | |
| parent | b01a59a4884ed2d95b8db4741e552a689c18989b (diff) | |
| download | linux-rpi3-1a2e93329dd413585798c122aac0607093b2d379.tar.gz linux-rpi3-1a2e93329dd413585798c122aac0607093b2d379.tar.bz2 linux-rpi3-1a2e93329dd413585798c122aac0607093b2d379.zip | |
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: Kirill Tkhai <ktkhai@virtuozzo.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6')
| -rw-r--r-- | net/ipv6/icmp.c | 1 | ||||
| -rw-r--r-- | net/ipv6/mcast.c | 1 | ||||
| -rw-r--r-- | net/ipv6/ndisc.c | 1 |
3 files changed, 3 insertions, 0 deletions
diff --git a/net/ipv6/icmp.c b/net/ipv6/icmp.c index 6ae5dd3f4d0d..4fa4f1b150a4 100644 --- a/net/ipv6/icmp.c +++ b/net/ipv6/icmp.c @@ -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) diff --git a/net/ipv6/mcast.c b/net/ipv6/mcast.c index 9b9d2ff01b35..d9bb933dd5c4 100644 --- a/net/ipv6/mcast.c +++ b/net/ipv6/mcast.c @@ -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) diff --git a/net/ipv6/ndisc.c b/net/ipv6/ndisc.c index f61a5b613b52..0a19ce3a6f7f 100644 --- a/net/ipv6/ndisc.c +++ b/net/ipv6/ndisc.c @@ -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) |