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[NETNS][FRAGS]: Make the pernet subsystem for fragments.

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On namespace start we mainly prepare the ctl variables.

When the namespace is stopped we have to kill all the fragments that
point to this namespace.  The inet_frags_exit_net() handles it.

Signed-off-by: Pavel Emelyanov <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
This commit is contained in:
Pavel Emelyanov 2008-01-22 06:12:39 -08:00 • committed by David S. Miller
commit 81566e8322
4 changed files with 33 additions and 2 deletions
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14
net/ipv6/reassembly.c
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@ -728,6 +728,17 @@ static int ipv6_frags_init_net(struct net *net)
return ip6_frags_sysctl_register(net);
}
static void ipv6_frags_exit_net(struct net *net)
{
ip6_frags_sysctl_unregister(net);
inet_frags_exit_net(&net->ipv6.frags, &ip6_frags);
}
static struct pernet_operations ip6_frags_ops = {
.init = ipv6_frags_init_net,
.exit = ipv6_frags_exit_net,
};
int __init ipv6_frag_init(void)
{
int ret;
@ -736,7 +747,7 @@ int __init ipv6_frag_init(void)
if (ret)
goto out;
ipv6_frags_init_net(&init_net);
register_pernet_subsys(&ip6_frags_ops);
ip6_frags.hashfn = ip6_hashfn;
ip6_frags.constructor = ip6_frag_init;
@ -754,5 +765,6 @@ out:
void ipv6_frag_exit(void)
{
inet_frags_fini(&ip6_frags);
unregister_pernet_subsys(&ip6_frags_ops);
inet6_del_protocol(&frag_protocol, IPPROTO_FRAGMENT);
}