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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 <xemul@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Pavel Emelyanov
2008-01-22 06:12:39 -08:00
committed by David S. Miller
parent 3140c25c82
commit 81566e8322
4 changed files with 33 additions and 2 deletions
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13
net/ipv4/ip_fragment.c
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@@ -713,9 +713,20 @@ static int ipv4_frags_init_net(struct net *net)
return ip4_frags_ctl_register(net);
}
static void ipv4_frags_exit_net(struct net *net)
{
ip4_frags_ctl_unregister(net);
inet_frags_exit_net(&net->ipv4.frags, &ip4_frags);
}
static struct pernet_operations ip4_frags_ops = {
.init = ipv4_frags_init_net,
.exit = ipv4_frags_exit_net,
};
void __init ipfrag_init(void)
{
ipv4_frags_init_net(&init_net);
register_pernet_subsys(&ip4_frags_ops);
ip4_frags.hashfn = ip4_hashfn;
ip4_frags.constructor = ip4_frag_init;
ip4_frags.destructor = ip4_frag_free;