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net: Simplify ppp_generic pernet operations. 

Take advantage of the new pernet automatic storage management,
and stop using compatibility network namespace functions.

Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eric W. Biederman 2009-11-29 15:46:09 +00:00 committed by David S. Miller
parent e8d0288599
commit 741a6fa210
1 changed files with 7 additions and 23 deletions
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30
drivers/net/ppp_generic.c
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@ -864,12 +864,7 @@ static const struct file_operations ppp_device_fops = {
static __net_init int ppp_init_net(struct net *net)
{
struct ppp_net *pn;
int err;
pn = kzalloc(sizeof(*pn), GFP_KERNEL);
if (!pn)
return -ENOMEM;
struct ppp_net *pn = net_generic(net, ppp_net_id);
idr_init(&pn->units_idr);
mutex_init(&pn->all_ppp_mutex);
@ -879,32 +874,21 @@ static __net_init int ppp_init_net(struct net *net)
spin_lock_init(&pn->all_channels_lock);
err = net_assign_generic(net, ppp_net_id, pn);
if (err) {
kfree(pn);
return err;
}
return 0;
}
static __net_exit void ppp_exit_net(struct net *net)
{
struct ppp_net *pn;
struct ppp_net *pn = net_generic(net, ppp_net_id);
pn = net_generic(net, ppp_net_id);
idr_destroy(&pn->units_idr);
/*
* if someone has cached our net then
* further net_generic call will return NULL
*/
net_assign_generic(net, ppp_net_id, NULL);
kfree(pn);
}
static struct pernet_operations ppp_net_ops = {
.init = ppp_init_net,
.exit = ppp_exit_net,
.id = &ppp_net_id,
.size = sizeof(struct ppp_net),
};
#define PPP_MAJOR 108
@ -917,7 +901,7 @@ static int __init ppp_init(void)
printk(KERN_INFO "PPP generic driver version " PPP_VERSION "\n");
err = register_pernet_gen_device(&ppp_net_id, &ppp_net_ops);
err = register_pernet_device(&ppp_net_ops);
if (err) {
printk(KERN_ERR "failed to register PPP pernet device (%d)\n", err);
goto out;
@ -943,7 +927,7 @@ static int __init ppp_init(void)
out_chrdev:
unregister_chrdev(PPP_MAJOR, "ppp");
out_net:
unregister_pernet_gen_device(ppp_net_id, &ppp_net_ops);
unregister_pernet_device(&ppp_net_ops);
out:
return err;
}
@ -2835,7 +2819,7 @@ static void __exit ppp_cleanup(void)
unregister_chrdev(PPP_MAJOR, "ppp");
device_destroy(ppp_class, MKDEV(PPP_MAJOR, 0));
class_destroy(ppp_class);
unregister_pernet_gen_device(ppp_net_id, &ppp_net_ops);
unregister_pernet_device(&ppp_net_ops);
}
/*