diff options
Diffstat (limited to 'net/phonet/pn_dev.c')
| -rw-r--r-- | net/phonet/pn_dev.c | 61 |
1 files changed, 16 insertions, 45 deletions
diff --git a/net/phonet/pn_dev.c b/net/phonet/pn_dev.c index 947038ddd04..56a6146ac94 100644 --- a/net/phonet/pn_dev.c +++ b/net/phonet/pn_dev.c @@ -5,8 +5,8 @@ * * Copyright (C) 2008 Nokia Corporation. * - * Contact: Remi Denis-Courmont <remi.denis-courmont@nokia.com> - * Original author: Sakari Ailus <sakari.ailus@nokia.com> + * Authors: Sakari Ailus <sakari.ailus@nokia.com> + * Rémi Denis-Courmont * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License @@ -44,7 +44,7 @@ struct phonet_net { struct phonet_routes routes; }; -int phonet_net_id __read_mostly; +static int phonet_net_id __read_mostly; static struct phonet_net *phonet_pernet(struct net *net) { @@ -162,14 +162,6 @@ int phonet_address_add(struct net_device *dev, u8 addr) return err; } -static void phonet_device_rcu_free(struct rcu_head *head) -{ - struct phonet_device *pnd; - - pnd = container_of(head, struct phonet_device, rcu); - kfree(pnd); -} - int phonet_address_del(struct net_device *dev, u8 addr) { struct phonet_device_list *pndevs = phonet_device_list(dev_net(dev)); @@ -188,7 +180,7 @@ int phonet_address_del(struct net_device *dev, u8 addr) mutex_unlock(&pndevs->lock); if (pnd) - call_rcu(&pnd->rcu, phonet_device_rcu_free); + kfree_rcu(pnd, rcu); return err; } @@ -276,7 +268,7 @@ static int phonet_device_autoconf(struct net_device *dev) static void phonet_route_autodel(struct net_device *dev) { struct phonet_net *pnn = phonet_pernet(dev_net(dev)); - unsigned i; + unsigned int i; DECLARE_BITMAP(deleted, 64); /* Remove left-over Phonet routes */ @@ -284,7 +276,7 @@ static void phonet_route_autodel(struct net_device *dev) mutex_lock(&pnn->routes.lock); for (i = 0; i < 64; i++) if (dev == pnn->routes.table[i]) { - rcu_assign_pointer(pnn->routes.table[i], NULL); + RCU_INIT_POINTER(pnn->routes.table[i], NULL); set_bit(i, deleted); } mutex_unlock(&pnn->routes.lock); @@ -300,9 +292,9 @@ static void phonet_route_autodel(struct net_device *dev) /* notify Phonet of device events */ static int phonet_device_notify(struct notifier_block *me, unsigned long what, - void *arg) + void *ptr) { - struct net_device *dev = arg; + struct net_device *dev = netdev_notifier_info_to_dev(ptr); switch (what) { case NETDEV_REGISTER: @@ -328,7 +320,7 @@ static int __net_init phonet_init_net(struct net *net) { struct phonet_net *pnn = phonet_pernet(net); - if (!proc_net_fops_create(net, "phonet", 0, &pn_sock_seq_fops)) + if (!proc_create("phonet", 0, net->proc_net, &pn_sock_seq_fops)) return -ENOMEM; INIT_LIST_HEAD(&pnn->pndevs.list); @@ -339,24 +331,7 @@ static int __net_init phonet_init_net(struct net *net) static void __net_exit phonet_exit_net(struct net *net) { - struct phonet_net *pnn = phonet_pernet(net); - struct net_device *dev; - unsigned i; - - rtnl_lock(); - for_each_netdev(net, dev) - phonet_device_destroy(dev); - - for (i = 0; i < 64; i++) { - dev = pnn->routes.table[i]; - if (dev) { - rtm_phonet_notify(RTM_DELROUTE, dev, i); - dev_put(dev); - } - } - rtnl_unlock(); - - proc_net_remove(net, "phonet"); + remove_proc_entry("phonet", net->proc_net); } static struct pernet_operations phonet_net_ops = { @@ -369,11 +344,11 @@ static struct pernet_operations phonet_net_ops = { /* Initialize Phonet devices list */ int __init phonet_device_init(void) { - int err = register_pernet_device(&phonet_net_ops); + int err = register_pernet_subsys(&phonet_net_ops); if (err) return err; - proc_net_fops_create(&init_net, "pnresource", 0, &pn_res_seq_fops); + proc_create("pnresource", 0, init_net.proc_net, &pn_res_seq_fops); register_netdevice_notifier(&phonet_device_notifier); err = phonet_netlink_register(); if (err) @@ -385,8 +360,8 @@ void phonet_device_exit(void) { rtnl_unregister_all(PF_PHONET); unregister_netdevice_notifier(&phonet_device_notifier); - unregister_pernet_device(&phonet_net_ops); - proc_net_remove(&init_net, "pnresource"); + unregister_pernet_subsys(&phonet_net_ops); + remove_proc_entry("pnresource", init_net.proc_net); } int phonet_route_add(struct net_device *dev, u8 daddr) @@ -414,7 +389,7 @@ int phonet_route_del(struct net_device *dev, u8 daddr) daddr = daddr >> 2; mutex_lock(&routes->lock); if (dev == routes->table[daddr]) - rcu_assign_pointer(routes->table[daddr], NULL); + RCU_INIT_POINTER(routes->table[daddr], NULL); else dev = NULL; mutex_unlock(&routes->lock); @@ -426,18 +401,14 @@ int phonet_route_del(struct net_device *dev, u8 daddr) return 0; } -struct net_device *phonet_route_get(struct net *net, u8 daddr) +struct net_device *phonet_route_get_rcu(struct net *net, u8 daddr) { struct phonet_net *pnn = phonet_pernet(net); struct phonet_routes *routes = &pnn->routes; struct net_device *dev; - ASSERT_RTNL(); /* no need to hold the device */ - daddr >>= 2; - rcu_read_lock(); dev = rcu_dereference(routes->table[daddr]); - rcu_read_unlock(); return dev; } |