Merge bk://kernel.bkbits.net/acme/net-2.6

into nuts.davemloft.net:/disk1/BK/acme-2.6

include/linux/ipv6.h

@@ -182,8 +182,7 @@ enum {
    as offsets from skb->nh.
  */
 
-struct inet6_skb_parm
-{
+struct inet6_skb_parm {
 	int			iif;
 	__u16			ra;
 	__u16			hop;
@@ -194,6 +193,14 @@ struct inet6_skb_parm
 
 #define IP6CB(skb)	((struct inet6_skb_parm*)((skb)->cb))
 
+/**
+ * struct ipv6_pinfo - ipv6 private area
+ *
+ * In the struct sock hierarchy (tcp6_sock, upd6_sock, etc)
+ * this _must_ be the last member, so that inet6_sk_generic
+ * is able to calculate its offset from the base struct sock
+ * by using the struct proto->slab_obj_size member. -acme
+ */
 struct ipv6_pinfo {
 	struct in6_addr 	saddr;
 	struct in6_addr 	rcv_saddr;
@@ -282,10 +289,6 @@ static inline struct raw6_opt * raw6_sk(const struct sock *__sk)
 	return &((struct raw6_sock *)__sk)->raw6;
 }
 
-struct ipv6_sk_offset {
-	int	offset;
-};
-
 #if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
 #define __ipv6_only_sock(sk)	(inet6_sk(sk)->ipv6only)
 #define ipv6_only_sock(sk)	((sk)->sk_family == PF_INET6 && __ipv6_only_sock(sk))

include/net/af_unix.h

@@ -37,16 +37,14 @@ static inline struct sock *next_unix_socket(int *i, struct sock *s)
 #define forall_unix_sockets(i, s) \
 	for (s = first_unix_socket(&(i)); s; s = next_unix_socket(&(i),(s)))
 
-struct unix_address
-{
+struct unix_address {
 	atomic_t	refcnt;
 	int		len;
 	unsigned	hash;
 	struct sockaddr_un name[0];
 };
 
-struct unix_skb_parms
-{
+struct unix_skb_parms {
 	struct ucred		creds;		/* Skb credentials	*/
 	struct scm_fp_list	*fp;		/* Passed files		*/
 };
@@ -68,6 +66,7 @@ struct unix_sock {
         struct dentry		*dentry;
         struct vfsmount		*mnt;
         struct semaphore        readsem;
+        struct sock		*peer;
         struct sock		*other;
         struct sock		*gc_tree;
         atomic_t                inflight;

include/net/sock.h

@@ -142,7 +142,6 @@ struct sock_common {
   *	@sk_route_caps - route capabilities (e.g. %NETIF_F_TSO)
   *	@sk_lingertime - %SO_LINGER l_linger setting
   *	@sk_hashent - hash entry in several tables (e.g. tcp_ehash)
-  *	@sk_pair - socket pair (e.g. AF_UNIX/unix_peer)
   *	@sk_backlog - always used with the per-socket spinlock held
   *	@sk_callback_lock - used with the callbacks in the end of this struct
   *	@sk_error_queue - rarely used
@@ -219,7 +218,6 @@ struct sock {
 	int			sk_route_caps;
 	unsigned long	        sk_lingertime;
 	int			sk_hashent;
-	struct sock		*sk_pair;
 	/*
 	 * The backlog queue is special, it is always used with
 	 * the per-socket spinlock held and requires low latency
@@ -557,7 +555,6 @@ struct proto {
 
 	kmem_cache_t		*slab;
 	int			slab_obj_size;
-	void			*af_specific;
 
 	char			name[32];
 

net/ax25/af_ax25.c

@@ -1338,7 +1338,6 @@ static int ax25_accept(struct socket *sock, struct socket *newsock, int flags)
 	remove_wait_queue(sk->sk_sleep, &wait);
 
 	newsk		 = skb->sk;
-	newsk->sk_pair	 = NULL;
 	newsk->sk_socket = newsock;
 	newsk->sk_sleep	 = &newsock->wait;
 

net/ax25/ax25_in.c

@@ -372,7 +372,6 @@ static int ax25_rcv(struct sk_buff *skb, struct net_device *dev,
 		skb_queue_head(&sk->sk_receive_queue, skb);
 
 		make->sk_state = TCP_ESTABLISHED;
-		make->sk_pair  = sk;
 
 		sk->sk_ack_backlog++;
 		bh_unlock_sock(sk);

net/ipv6/af_inet6.c

@@ -107,9 +107,9 @@ static void inet6_sock_destruct(struct sock *sk)
 
 static __inline__ struct ipv6_pinfo *inet6_sk_generic(struct sock *sk)
 {
-	const struct ipv6_sk_offset *offset = sk->sk_prot->af_specific;
+	const int offset = sk->sk_prot->slab_obj_size - sizeof(struct ipv6_pinfo);
 
-	return (struct ipv6_pinfo *)(((u8 *)sk) + offset->offset);
+	return (struct ipv6_pinfo *)(((u8 *)sk) + offset);
 }
 
 static int inet6_create(struct socket *sock, int protocol)

net/ipv6/raw.c

@@ -973,10 +973,6 @@ static int rawv6_init_sk(struct sock *sk)
 	return(0);
 }
 
-struct ipv6_sk_offset raw_sock_offset = {
-	.offset = offsetof(struct raw6_sock, inet6),
-};
-
 struct proto rawv6_prot = {
 	.name =		"RAW",
 	.close =	rawv6_close,
@@ -994,7 +990,6 @@ struct proto rawv6_prot = {
 	.hash =		raw_v6_hash,
 	.unhash =	raw_v6_unhash,
 	.slab_obj_size = sizeof(struct raw6_sock),
-	.af_specific =	&raw_sock_offset,
 };
 
 #ifdef CONFIG_PROC_FS

net/ipv6/tcp_ipv6.c

@@ -2120,10 +2120,6 @@ void tcp6_proc_exit(void)
 }
 #endif
 
-struct ipv6_sk_offset tcp_sock_offset = {
-	.offset = offsetof(struct tcp6_sock, inet6),
-};
-
 struct proto tcpv6_prot = {
 	.name			= "TCPv6",
 	.close			= tcp_close,
@@ -2151,7 +2147,6 @@ struct proto tcpv6_prot = {
 	.sysctl_rmem		= sysctl_tcp_rmem,
 	.max_header		= MAX_TCP_HEADER,
 	.slab_obj_size		= sizeof(struct tcp6_sock),
-	.af_specific		= &tcp_sock_offset,
 };
 
 static struct inet6_protocol tcpv6_protocol = {

net/ipv6/udp.c

@@ -1031,10 +1031,6 @@ void udp6_proc_exit(void) {
 
 /* ------------------------------------------------------------------------ */
 
-struct ipv6_sk_offset udp_sock_offset = {
-	.offset = offsetof(struct udp6_sock, inet6),
-};
-
 struct proto udpv6_prot = {
 	.name =		"UDP",
 	.close =	udpv6_close,
@@ -1051,7 +1047,6 @@ struct proto udpv6_prot = {
 	.unhash =	udp_v6_unhash,
 	.get_port =	udp_v6_get_port,
 	.slab_obj_size = sizeof(struct udp6_sock),
-	.af_specific =	&udp_sock_offset,
 };
 
 extern struct proto_ops inet6_dgram_ops;

net/llc/af_llc.c

@@ -638,7 +638,6 @@ static int llc_ui_accept(struct socket *sock, struct socket *newsock, int flags)
 	newsk = skb->sk;
 	/* attach connection to a new socket. */
 	llc_ui_sk_init(newsock, newsk);
-	newsk->sk_pair		= NULL;
 	newsk->sk_zapped	= 0;
 	newsk->sk_state		= TCP_ESTABLISHED;
 	newsock->state		= SS_CONNECTED;

net/netrom/af_netrom.c

@@ -801,7 +801,6 @@ static int nr_accept(struct socket *sock, struct socket *newsock, int flags)
 	remove_wait_queue(sk->sk_sleep, &wait);
 
 	newsk = skb->sk;
-	newsk->sk_pair = NULL;
 	newsk->sk_socket = newsock;
 	newsk->sk_sleep = &newsock->wait;
 
@@ -994,7 +993,6 @@ int nr_rx_frame(struct sk_buff *skb, struct net_device *dev)
 	nr_make->vl        = 0;
 	nr_make->state     = NR_STATE_3;
 	sk->sk_ack_backlog++;
-	make->sk_pair = sk;
 
 	nr_insert_socket(make);
 

net/rose/af_rose.c

@@ -882,7 +882,6 @@ static int rose_accept(struct socket *sock, struct socket *newsock, int flags)
 	remove_wait_queue(sk->sk_sleep, &wait);
 
 	newsk = skb->sk;
-	newsk->sk_pair = NULL;
 	newsk->sk_socket = newsock;
 	newsk->sk_sleep = &newsock->wait;
 
@@ -996,7 +995,6 @@ int rose_rx_call_request(struct sk_buff *skb, struct net_device *dev, struct ros
 	make_rose->vr        = 0;
 	make_rose->vl        = 0;
 	sk->sk_ack_backlog++;
-	make->sk_pair = sk;
 
 	rose_insert_socket(make);
 

net/sctp/socket.c

@@ -4626,10 +4626,6 @@ struct proto sctp_prot = {
 };
 
 #if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
-struct ipv6_sk_offset sctp_sock_offset = {
-	.offset = offsetof(struct sctp6_sock, inet6),
-};
-
 struct proto sctpv6_prot = {
 	.name		= "SCTPv6",
 	.close		= sctp_close,
@@ -4650,6 +4646,5 @@ struct proto sctpv6_prot = {
 	.unhash		= sctp_unhash,
 	.get_port	= sctp_get_port,
 	.slab_obj_size	= sizeof(struct sctp6_sock),
-	.af_specific	= &sctp_sock_offset,
 };
 #endif /* defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE) */

net/unix/af_unix.c

@@ -144,7 +144,7 @@ static inline unsigned unix_hash_fold(unsigned hash)
 	return hash&(UNIX_HASH_SIZE-1);
 }
 
-#define unix_peer(sk) ((sk)->sk_pair)
+#define unix_peer(sk) (unix_sk(sk)->peer)
 
 static inline int unix_our_peer(struct sock *sk, struct sock *osk)
 {

net/wanrouter/af_wanpipe.c

@@ -2423,7 +2423,6 @@ static int wanpipe_accept(struct socket *sock, struct socket *newsock, int flags
 	write_unlock(&wanpipe_sklist_lock);
 	clear_bit(1,&wanpipe_tx_critical);
 
-	newsk->sk_pair = NULL;
 	newsk->sk_socket = newsock;
 	newsk->sk_sleep = &newsock->wait;
 

net/x25/af_x25.c

@@ -769,7 +769,6 @@ static int x25_accept(struct socket *sock, struct socket *newsock, int flags)
 	if (!skb->sk)
 		goto out2;
 	newsk		 = skb->sk;
-	newsk->sk_pair   = NULL;
 	newsk->sk_socket = newsock;
 	newsk->sk_sleep  = &newsock->wait;
 
@@ -887,7 +886,6 @@ int x25_rx_call_request(struct sk_buff *skb, struct x25_neigh *nb,
 	makex25->state = X25_STATE_3;
 
 	sk->sk_ack_backlog++;
-	make->sk_pair = sk;
 
 	x25_insert_socket(make);