inet: rename some inet_sock fields

In order to have better cache layouts of struct sock (separate zones
for rx/tx paths), we need this preliminary patch.

Goal is to transfert fields used at lookup time in the first
read-mostly cache line (inside struct sock_common) and move sk_refcnt
to a separate cache line (only written by rx path)

This patch adds inet_ prefix to daddr, rcv_saddr, dport, num, saddr,
sport and id fields. This allows a future patch to define these
fields as macros, like sk_refcnt, without name clashes.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/sunrpc/svcsock.c b/net/sunrpc/svcsock.c
index ccc5e83..c2a1787 100644
--- a/net/sunrpc/svcsock.c
+++ b/net/sunrpc/svcsock.c
@@ -272,14 +272,14 @@
 	case PF_INET:
 		len = snprintf(buf, remaining, "ipv4 %s %pI4 %d\n",
 				proto_name,
-				&inet_sk(sk)->rcv_saddr,
-				inet_sk(sk)->num);
+				&inet_sk(sk)->inet_rcv_saddr,
+				inet_sk(sk)->inet_num);
 		break;
 	case PF_INET6:
 		len = snprintf(buf, remaining, "ipv6 %s %pI6 %d\n",
 				proto_name,
 				&inet6_sk(sk)->rcv_saddr,
-				inet_sk(sk)->num);
+				inet_sk(sk)->inet_num);
 		break;
 	default:
 		len = snprintf(buf, remaining, "*unknown-%d*\n",
@@ -1311,7 +1311,7 @@
 	/* Register socket with portmapper */
 	if (*errp >= 0 && pmap_register)
 		*errp = svc_register(serv, inet->sk_family, inet->sk_protocol,
-				     ntohs(inet_sk(inet)->sport));
+				     ntohs(inet_sk(inet)->inet_sport));
 
 	if (*errp < 0) {
 		kfree(svsk);