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/fs/ocfs2/cluster/netdebug.c b/fs/ocfs2/cluster/netdebug.c
index da794bc..a3f150e 100644
--- a/fs/ocfs2/cluster/netdebug.c
+++ b/fs/ocfs2/cluster/netdebug.c
@@ -294,10 +294,10 @@
 		if (sc->sc_sock) {
 			inet = inet_sk(sc->sc_sock->sk);
 			/* the stack's structs aren't sparse endian clean */
-			saddr = (__force __be32)inet->saddr;
-			daddr = (__force __be32)inet->daddr;
-			sport = (__force __be16)inet->sport;
-			dport = (__force __be16)inet->dport;
+			saddr = (__force __be32)inet->inet_saddr;
+			daddr = (__force __be32)inet->inet_daddr;
+			sport = (__force __be16)inet->inet_sport;
+			dport = (__force __be16)inet->inet_dport;
 		}
 
 		/* XXX sigh, inet-> doesn't have sparse annotation so any