nfsd: track last inode only in use_wgather case

[safe/jmp/linux-2.6] / net / netrom / af_netrom.c

diff --git a/net/netrom/af_netrom.c b/net/netrom/af_netrom.c
index e969d1b..3be0e01 100644 (file)
--- a/net/netrom/af_netrom.c
+++ b/net/netrom/af_netrom.c
@@ -73,6 +73,20 @@ static const struct proto_ops nr_proto_ops;
  * separate class since they always nest.
  */
 static struct lock_class_key nr_netdev_xmit_lock_key;
+static struct lock_class_key nr_netdev_addr_lock_key;
+
+static void nr_set_lockdep_one(struct net_device *dev,
+                              struct netdev_queue *txq,
+                              void *_unused)
+{
+       lockdep_set_class(&txq->_xmit_lock, &nr_netdev_xmit_lock_key);
+}
+
+static void nr_set_lockdep_key(struct net_device *dev)
+{
+       lockdep_set_class(&dev->addr_list_lock, &nr_netdev_addr_lock_key);
+       netdev_for_each_tx_queue(dev, nr_set_lockdep_one, NULL);
+}
 
 /*
  *     Socket removal during an interrupt is now safe.
@@ -106,6 +120,9 @@ static int nr_device_event(struct notifier_block *this, unsigned long event, voi
 {
        struct net_device *dev = (struct net_device *)ptr;
 
+       if (!net_eq(dev_net(dev), &init_net))
+               return NOTIFY_DONE;
+
        if (event != NETDEV_DOWN)
                return NOTIFY_DONE;
 
@@ -420,7 +437,8 @@ static int nr_create(struct net *net, struct socket *sock, int protocol)
        if (sock->type != SOCK_SEQPACKET || protocol != 0)
                return -ESOCKTNOSUPPORT;
 
-       if ((sk = sk_alloc(net, PF_NETROM, GFP_ATOMIC, &nr_proto, 1)) == NULL)
+       sk = sk_alloc(net, PF_NETROM, GFP_ATOMIC, &nr_proto);
+       if (sk  == NULL)
                return -ENOMEM;
 
        nr = nr_sk(sk);
@@ -462,7 +480,8 @@ static struct sock *nr_make_new(struct sock *osk)
        if (osk->sk_type != SOCK_SEQPACKET)
                return NULL;
 
-       if ((sk = sk_alloc(osk->sk_net, PF_NETROM, GFP_ATOMIC, osk->sk_prot, 1)) == NULL)
+       sk = sk_alloc(sock_net(osk), PF_NETROM, GFP_ATOMIC, osk->sk_prot);
+       if (sk == NULL)
                return NULL;
 
        nr = nr_sk(sk);
@@ -470,13 +489,11 @@ static struct sock *nr_make_new(struct sock *osk)
        sock_init_data(NULL, sk);
 
        sk->sk_type     = osk->sk_type;
-       sk->sk_socket   = osk->sk_socket;
        sk->sk_priority = osk->sk_priority;
        sk->sk_protocol = osk->sk_protocol;
        sk->sk_rcvbuf   = osk->sk_rcvbuf;
        sk->sk_sndbuf   = osk->sk_sndbuf;
        sk->sk_state    = TCP_ESTABLISHED;
-       sk->sk_sleep    = osk->sk_sleep;
        sock_copy_flags(sk, osk);
 
        skb_queue_head_init(&nr->ack_queue);
@@ -508,6 +525,7 @@ static int nr_release(struct socket *sock)
        if (sk == NULL) return 0;
 
        sock_hold(sk);
+       sock_orphan(sk);
        lock_sock(sk);
        nr = nr_sk(sk);
 
@@ -531,13 +549,10 @@ static int nr_release(struct socket *sock)
                sk->sk_state    = TCP_CLOSE;
                sk->sk_shutdown |= SEND_SHUTDOWN;
                sk->sk_state_change(sk);
-               sock_orphan(sk);
                sock_set_flag(sk, SOCK_DESTROY);
-               sk->sk_socket   = NULL;
                break;
 
        default:
-               sk->sk_socket = NULL;
                break;
        }
 
@@ -594,7 +609,7 @@ static int nr_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len)
        } else {
                source = &addr->fsa_ax25.sax25_call;
 
-               user = ax25_findbyuid(current->euid);
+               user = ax25_findbyuid(current_euid());
                if (user) {
                        nr->user_addr   = user->call;
                        ax25_uid_put(user);
@@ -668,7 +683,7 @@ static int nr_connect(struct socket *sock, struct sockaddr *uaddr,
                }
                source = (ax25_address *)dev->dev_addr;
 
-               user = ax25_findbyuid(current->euid);
+               user = ax25_findbyuid(current_euid());
                if (user) {
                        nr->user_addr   = user->call;
                        ax25_uid_put(user);
@@ -805,13 +820,11 @@ static int nr_accept(struct socket *sock, struct socket *newsock, int flags)
                goto out_release;
 
        newsk = skb->sk;
-       newsk->sk_socket = newsock;
-       newsk->sk_sleep = &newsock->wait;
+       sock_graft(newsk, newsock);
 
        /* Now attach up the new socket */
        kfree_skb(skb);
        sk_acceptq_removed(sk);
-       newsock->sk = newsk;
 
 out_release:
        release_sock(sk);
@@ -1069,7 +1082,13 @@ static int nr_sendmsg(struct kiocb *iocb, struct socket *sock,
 
        SOCK_DEBUG(sk, "NET/ROM: sendto: Addresses built.\n");
 
-       /* Build a packet */
+       /* Build a packet - the conventional user limit is 236 bytes. We can
+          do ludicrously large NetROM frames but must not overflow */
+       if (len > 65536) {
+               err = -EMSGSIZE;
+               goto out;
+       }
+
        SOCK_DEBUG(sk, "NET/ROM: sendto: building packet.\n");
        size = len + NR_NETWORK_LEN + NR_TRANSPORT_LEN;
 
@@ -1419,7 +1438,7 @@ static int __init nr_proto_init(void)
                struct net_device *dev;
 
                sprintf(name, "nr%d", i);
-               dev = alloc_netdev(sizeof(struct nr_private), name, nr_setup);
+               dev = alloc_netdev(0, name, nr_setup);
                if (!dev) {
                        printk(KERN_ERR "NET/ROM: nr_proto_init - unable to allocate device structure\n");
                        goto fail;
@@ -1431,7 +1450,7 @@ static int __init nr_proto_init(void)
                        free_netdev(dev);
                        goto fail;
                }
-               lockdep_set_class(&dev->_xmit_lock, &nr_netdev_xmit_lock_key);
+               nr_set_lockdep_key(dev);
                dev_nr[i] = dev;
        }