NFS: Support non-IPv4 addresses in nfs_parsed_mount_data

Replace the nfs_server and mount_server address fields in the
nfs_parsed_mount_data structure with a "struct sockaddr_storage"
instead of a "struct sockaddr_in".

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Cc: Aurelien Charbon <aurelien.charbon@ext.bull.net>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
diff --git a/fs/nfs/client.c b/fs/nfs/client.c
index ba114fa..9066133 100644
--- a/fs/nfs/client.c
+++ b/fs/nfs/client.c
@@ -581,7 +581,7 @@
 	struct nfs_client_initdata cl_init = {
 		.hostname = data->nfs_server.hostname,
 		.addr = (const struct sockaddr *)&data->nfs_server.address,
-		.addrlen = sizeof(data->nfs_server.address),
+		.addrlen = data->nfs_server.addrlen,
 		.rpc_ops = &nfs_v2_clientops,
 	};
 	struct nfs_client *clp;
@@ -1018,7 +1018,7 @@
 	error = nfs4_set_client(server,
 			data->nfs_server.hostname,
 			(struct sockaddr *)&data->nfs_server.address,
-			sizeof(data->nfs_server.address),
+			data->nfs_server.addrlen,
 			data->client_address,
 			data->auth_flavors[0],
 			data->nfs_server.protocol,