SUNRPC: Change svc_create_xprt() to take a @family argument

The sv_family field is going away.  Pass a protocol family argument to
svc_create_xprt() instead of extracting the family from the passed-in
svc_serv struct.

Again, as this is a listener socket and not an address, we make this
new argument an "int" protocol family, instead of an "sa_family_t."

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

fs/nfsd/nfsctl.c

@@ -943,7 +943,7 @@ static ssize_t __write_ports(struct file *file, char *buf, size_t size)
 			err = nfsd_create_serv();
 			if (!err) {
 				err = svc_create_xprt(nfsd_serv,
-						      transport, port,
+						      transport, PF_INET, port,
 						      SVC_SOCK_ANONYMOUS);
 				if (err == -ENOENT)
 					/* Give a reasonable perror msg for

fs/nfsd/nfssvc.c

@@ -244,7 +244,7 @@ static int nfsd_init_socks(int port)
 	if (!list_empty(&nfsd_serv->sv_permsocks))
 		return 0;
 
-	error = svc_create_xprt(nfsd_serv, "udp", port,
+	error = svc_create_xprt(nfsd_serv, "udp", PF_INET, port,
 					SVC_SOCK_DEFAULTS);
 	if (error < 0)
 		return error;
@@ -253,7 +253,7 @@ static int nfsd_init_socks(int port)
 	if (error < 0)
 		return error;
 
-	error = svc_create_xprt(nfsd_serv, "tcp", port,
+	error = svc_create_xprt(nfsd_serv, "tcp", PF_INET, port,
 					SVC_SOCK_DEFAULTS);
 	if (error < 0)
 		return error;