NSM: Encode the new "priv" cookie for NSMPROC_MON requests

Pass the new "priv" cookie to NSMPROC_MON's XDR encoder, instead of
creating the "priv" argument in the encoder at call time.

This patch should not cause a behavioral change: the contents of the
cookie remain the same for the time being.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>

1 files changed, 3 insertions, 9 deletions

diff --git a/fs/lockd/mon.c b/fs/lockd/mon.c
index c8d18cd22b8a..4424b0a5a51f 100644
--- a/fs/lockd/mon.c
+++ b/fs/lockd/mon.c
@@ -31,7 +31,7 @@ enum {
 };
 
 struct nsm_args {
-        __be32                  addr;           /* remote address */
+        struct nsm_private      *priv;
         u32                     prog;           /* RPC callback info */
         u32                     vers;
         u32                     proc;
@@ -101,7 +101,7 @@ nsm_mon_unmon(struct nsm_handle *nsm, u32 proc, struct nsm_res *res)
         struct rpc_clnt *clnt;
         int             status;
         struct nsm_args args = {
-                .addr           = nsm_addr_in(nsm)->sin_addr.s_addr,
+                .priv           = &nsm->sm_priv,
                 .prog           = NLM_PROGRAM,
                 .vers           = 3,
                 .proc           = NLMPROC_NSM_NOTIFY,
@@ -407,9 +407,6 @@ static int encode_mon_id(struct xdr_stream *xdr, const struct nsm_args *argp)
  * The "priv" argument may contain private information required
  * by the NSMPROC_MON call. This information will be supplied in the
  * NLMPROC_SM_NOTIFY call.
- *
- * Linux provides the raw IP address of the monitored host,
- * left in network byte order.
  */
 static int encode_priv(struct xdr_stream *xdr, const struct nsm_args *argp)
 {
@@ -418,10 +415,7 @@ static int encode_priv(struct xdr_stream *xdr, const struct nsm_args *argp)
         p = xdr_reserve_space(xdr, SM_PRIV_SIZE);
         if (unlikely(p == NULL))
                 return -EIO;
-        *p++ = argp->addr;
-        *p++ = 0;
-        *p++ = 0;
-        *p++ = 0;
+        xdr_encode_opaque_fixed(p, argp->priv->data, SM_PRIV_SIZE);
         return 0;
 }