[NET] Rename open_request to request_sock

Ok, this one just renames some stuff to have a better namespace and to
dissassociate it from TCP:

struct open_request  -> struct request_sock
tcp_openreq_alloc    -> reqsk_alloc
tcp_openreq_free     -> reqsk_free
tcp_openreq_fastfree -> __reqsk_free

With this most of the infrastructure closely resembles a struct
sock methods subset.

Signed-off-by: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/net/request_sock.h b/include/net/request_sock.h
index 9502f55..08a8fd1 100644
--- a/include/net/request_sock.h
+++ b/include/net/request_sock.h
@@ -19,28 +19,28 @@
 #include <linux/types.h>
 #include <net/sock.h>
 
-struct open_request;
+struct request_sock;
 struct sk_buff;
 struct dst_entry;
 struct proto;
 
-struct or_calltable {
+struct request_sock_ops {
 	int		family;
 	kmem_cache_t	*slab;
 	int		obj_size;
 	int		(*rtx_syn_ack)(struct sock *sk,
-				       struct open_request *req,
+				       struct request_sock *req,
 				       struct dst_entry *dst);
 	void		(*send_ack)(struct sk_buff *skb,
-				    struct open_request *req);
+				    struct request_sock *req);
 	void		(*send_reset)(struct sk_buff *skb);
-	void		(*destructor)(struct open_request *req);
+	void		(*destructor)(struct request_sock *req);
 };
 
-/* struct open_request - mini sock to represent a connection request
+/* struct request_sock - mini sock to represent a connection request
  */
-struct open_request {
-	struct open_request		*dl_next; /* Must be first member! */
+struct request_sock {
+	struct request_sock		*dl_next; /* Must be first member! */
 	u16				mss;
 	u8				retrans;
 	u8				__pad;
@@ -49,29 +49,29 @@
 	u32				rcv_wnd;	  /* rcv_wnd offered first time */
 	u32				ts_recent;
 	unsigned long			expires;
-	struct or_calltable		*class;
+	struct request_sock_ops		*rsk_ops;
 	struct sock			*sk;
 };
 
-static inline struct open_request *tcp_openreq_alloc(struct or_calltable *class)
+static inline struct request_sock *reqsk_alloc(struct request_sock_ops *ops)
 {
-	struct open_request *req = kmem_cache_alloc(class->slab, SLAB_ATOMIC);
+	struct request_sock *req = kmem_cache_alloc(ops->slab, SLAB_ATOMIC);
 
 	if (req != NULL)
-		req->class = class;
+		req->rsk_ops = ops;
 
 	return req;
 }
 
-static inline void tcp_openreq_fastfree(struct open_request *req)
+static inline void __reqsk_free(struct request_sock *req)
 {
-	kmem_cache_free(req->class->slab, req);
+	kmem_cache_free(req->rsk_ops->slab, req);
 }
 
-static inline void tcp_openreq_free(struct open_request *req)
+static inline void reqsk_free(struct request_sock *req)
 {
-	req->class->destructor(req);
-	tcp_openreq_fastfree(req);
+	req->rsk_ops->destructor(req);
+	__reqsk_free(req);
 }
 
 #endif /* _REQUEST_SOCK_H */
diff --git a/include/net/sock.h b/include/net/sock.h
index 6919276..e593af5 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -484,7 +484,7 @@
 
 extern int sk_wait_data(struct sock *sk, long *timeo);
 
-struct or_calltable;
+struct request_sock_ops;
 
 /* Networking protocol blocks we attach to sockets.
  * socket layer -> transport layer interface
@@ -549,7 +549,7 @@
 	kmem_cache_t		*slab;
 	unsigned int		obj_size;
 
-	struct or_calltable	*rsk_prot;
+	struct request_sock_ops	*rsk_prot;
 
 	struct module		*owner;
 
diff --git a/include/net/tcp.h b/include/net/tcp.h
index d438ba5..6663086 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -641,7 +641,7 @@
 
 	struct sock *		(*syn_recv_sock)	(struct sock *sk,
 							 struct sk_buff *skb,
-							 struct open_request *req,
+							 struct request_sock *req,
 							 struct dst_entry *dst);
     
 	int			(*remember_stamp)	(struct sock *sk);
@@ -785,8 +785,8 @@
 							   unsigned len);
 
 extern struct sock *		tcp_check_req(struct sock *sk,struct sk_buff *skb,
-					      struct open_request *req,
-					      struct open_request **prev);
+					      struct request_sock *req,
+					      struct request_sock **prev);
 extern int			tcp_child_process(struct sock *parent,
 						  struct sock *child,
 						  struct sk_buff *skb);
@@ -836,12 +836,12 @@
 						    struct sk_buff *skb);
 
 extern struct sock *		tcp_create_openreq_child(struct sock *sk,
-							 struct open_request *req,
+							 struct request_sock *req,
 							 struct sk_buff *skb);
 
 extern struct sock *		tcp_v4_syn_recv_sock(struct sock *sk,
 						     struct sk_buff *skb,
-						     struct open_request *req,
+						     struct request_sock *req,
 							struct dst_entry *dst);
 
 extern int			tcp_v4_do_rcv(struct sock *sk,
@@ -855,7 +855,7 @@
 
 extern struct sk_buff *		tcp_make_synack(struct sock *sk,
 						struct dst_entry *dst,
-						struct open_request *req);
+						struct request_sock *req);
 
 extern int			tcp_disconnect(struct sock *sk, int flags);
 
@@ -1683,7 +1683,7 @@
 	return tcp_win_from_space(sk->sk_rcvbuf); 
 }
 
-static inline void tcp_acceptq_queue(struct sock *sk, struct open_request *req,
+static inline void tcp_acceptq_queue(struct sock *sk, struct request_sock *req,
 					 struct sock *child)
 {
 	struct tcp_sock *tp = tcp_sk(sk);
@@ -1707,11 +1707,11 @@
 	int			qlen_young;
 	int			clock_hand;
 	u32			hash_rnd;
-	struct open_request	*syn_table[TCP_SYNQ_HSIZE];
+	struct request_sock	*syn_table[TCP_SYNQ_HSIZE];
 };
 
 static inline void
-tcp_synq_removed(struct sock *sk, struct open_request *req)
+tcp_synq_removed(struct sock *sk, struct request_sock *req)
 {
 	struct tcp_listen_opt *lopt = tcp_sk(sk)->listen_opt;
 
@@ -1745,23 +1745,23 @@
 	return tcp_synq_len(sk) >> tcp_sk(sk)->listen_opt->max_qlen_log;
 }
 
-static inline void tcp_synq_unlink(struct tcp_sock *tp, struct open_request *req,
-				       struct open_request **prev)
+static inline void tcp_synq_unlink(struct tcp_sock *tp, struct request_sock *req,
+				       struct request_sock **prev)
 {
 	write_lock(&tp->syn_wait_lock);
 	*prev = req->dl_next;
 	write_unlock(&tp->syn_wait_lock);
 }
 
-static inline void tcp_synq_drop(struct sock *sk, struct open_request *req,
-				     struct open_request **prev)
+static inline void tcp_synq_drop(struct sock *sk, struct request_sock *req,
+				     struct request_sock **prev)
 {
 	tcp_synq_unlink(tcp_sk(sk), req, prev);
 	tcp_synq_removed(sk, req);
-	tcp_openreq_free(req);
+	reqsk_free(req);
 }
 
-static __inline__ void tcp_openreq_init(struct open_request *req,
+static __inline__ void tcp_openreq_init(struct request_sock *req,
 					struct tcp_options_received *rx_opt,
 					struct sk_buff *skb)
 {
diff --git a/include/net/tcp_ecn.h b/include/net/tcp_ecn.h
index 94ad970..64980ee 100644
--- a/include/net/tcp_ecn.h
+++ b/include/net/tcp_ecn.h
@@ -39,7 +39,7 @@
 }
 
 static __inline__ void
-TCP_ECN_make_synack(struct open_request *req, struct tcphdr *th)
+TCP_ECN_make_synack(struct request_sock *req, struct tcphdr *th)
 {
 	if (inet_rsk(req)->ecn_ok)
 		th->ece = 1;
@@ -112,13 +112,13 @@
 }
 
 static inline void TCP_ECN_openreq_child(struct tcp_sock *tp,
-					 struct open_request *req)
+					 struct request_sock *req)
 {
 	tp->ecn_flags = inet_rsk(req)->ecn_ok ? TCP_ECN_OK : 0;
 }
 
 static __inline__ void
-TCP_ECN_create_request(struct open_request *req, struct tcphdr *th)
+TCP_ECN_create_request(struct request_sock *req, struct tcphdr *th)
 {
 	if (sysctl_tcp_ecn && th->ece && th->cwr)
 		inet_rsk(req)->ecn_ok = 1;