NFSv4.1: Replace usage of nfs_client->cl_addr in encode_create_session

Replace the current code with something that is a little closer to what
net/sunrpc/auth_unix.c uses.

Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>

1 files changed, 3 insertions, 7 deletions

diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c
index e3018e7a316c..41253393171f 100644
--- a/fs/nfs/nfs4xdr.c
+++ b/fs/nfs/nfs4xdr.c
@@ -1804,9 +1804,8 @@ static void encode_create_session(struct xdr_stream *xdr,
                                   struct compound_hdr *hdr)
 {
         __be32 *p;
-        char machine_name[NFS4_MAX_MACHINE_NAME_LEN];
-        uint32_t len;
         struct nfs_client *clp = args->client;
+        struct rpc_clnt *clnt = clp->cl_rpcclient;
         struct nfs_net *nn = net_generic(clp->cl_net, nfs_net_id);
         u32 max_resp_sz_cached;
 
@@ -1817,11 +1816,8 @@ static void encode_create_session(struct xdr_stream *xdr,
         max_resp_sz_cached = (NFS4_dec_open_sz + RPC_REPHDRSIZE +
                               RPC_MAX_AUTH_SIZE + 2) * XDR_UNIT;
 
-        len = scnprintf(machine_name, sizeof(machine_name), "%s",
-                        clp->cl_ipaddr);
-
         encode_op_hdr(xdr, OP_CREATE_SESSION, decode_create_session_maxsz, hdr);
-        p = reserve_space(xdr, 16 + 2*28 + 20 + len + 12);
+        p = reserve_space(xdr, 16 + 2*28 + 20 + clnt->cl_nodelen + 12);
         p = xdr_encode_hyper(p, clp->cl_clientid);
         *p++ = cpu_to_be32(clp->cl_seqid);                      /*Sequence id */
         *p++ = cpu_to_be32(args->flags);                        /*flags */
@@ -1850,7 +1846,7 @@ static void encode_create_session(struct xdr_stream *xdr,
 
         /* authsys_parms rfc1831 */
         *p++ = cpu_to_be32(nn->boot_time.tv_nsec);      /* stamp */
-        p = xdr_encode_opaque(p, machine_name, len);
+        p = xdr_encode_array(p, clnt->cl_nodename, clnt->cl_nodelen);
         *p++ = cpu_to_be32(0);                          /* UID */
         *p++ = cpu_to_be32(0);                          /* GID */
         *p = cpu_to_be32(0);                            /* No more gids */