4 files changed, 28 insertions, 14 deletions

diff --git a/fs/nfsd/nfs2acl.c b/fs/nfsd/nfs2acl.c
index 71108da2e54e..9187755661df 100644
--- a/fs/nfsd/nfs2acl.c
+++ b/fs/nfsd/nfs2acl.c
@@ -333,4 +333,5 @@ struct svc_version	nfsd_acl_version2 = {
                 .vs_proc        = nfsd_acl_procedures2,
                 .vs_dispatch    = nfsd_dispatch,
                 .vs_xdrsize     = NFS3_SVC_XDRSIZE,
+                .vs_hidden      = 1,
 };
diff --git a/fs/nfsd/nfs3acl.c b/fs/nfsd/nfs3acl.c
index f813b054f4a1..d4bdc00c1169 100644
--- a/fs/nfsd/nfs3acl.c
+++ b/fs/nfsd/nfs3acl.c
@@ -263,5 +263,6 @@ struct svc_version	nfsd_acl_version3 = {
                 .vs_proc        = nfsd_acl_procedures3,
                 .vs_dispatch    = nfsd_dispatch,
                 .vs_xdrsize     = NFS3_SVC_XDRSIZE,
+                .vs_hidden      = 1,
 };
 
diff --git a/include/linux/sunrpc/svc.h b/include/linux/sunrpc/svc.h
index 74e52c245da4..d6288e89fd9d 100644
--- a/include/linux/sunrpc/svc.h
+++ b/include/linux/sunrpc/svc.h
@@ -321,6 +321,9 @@ struct svc_version {
         struct svc_procedure *  vs_proc;        /* per-procedure info */
         u32                     vs_xdrsize;     /* xdrsize needed for this version */
 
+        unsigned int            vs_hidden : 1;  /* Don't register with portmapper.
+                                                 * Only used for nfsacl so far. */
+
         /* Override dispatch function (e.g. when caching replies).
          * A return value of 0 means drop the request. 
          * vs_dispatch == NULL means use default dispatcher.
diff --git a/net/sunrpc/svc.c b/net/sunrpc/svc.c
index b252401c8601..550441d13a08 100644
--- a/net/sunrpc/svc.c
+++ b/net/sunrpc/svc.c
@@ -644,23 +644,32 @@ svc_register(struct svc_serv *serv, int proto, unsigned short port)
         unsigned long           flags;
         int                     i, error = 0, dummy;
 
-        progp = serv->sv_program;
-
-        dprintk("RPC: svc_register(%s, %s, %d)\n",
-                progp->pg_name, proto == IPPROTO_UDP? "udp" : "tcp", port);
-
         if (!port)
                 clear_thread_flag(TIF_SIGPENDING);
 
-        for (i = 0; i < progp->pg_nvers; i++) {
-                if (progp->pg_vers[i] == NULL)
-                        continue;
-                error = rpc_register(progp->pg_prog, i, proto, port, &dummy);
-                if (error < 0)
-                        break;
-                if (port && !dummy) {
-                        error = -EACCES;
-                        break;
+        for (progp = serv->sv_program; progp; progp = progp->pg_next) {
+                for (i = 0; i < progp->pg_nvers; i++) {
+                        if (progp->pg_vers[i] == NULL)
+                                continue;
+
+                        dprintk("RPC: svc_register(%s, %s, %d, %d)%s\n",
+                                        progp->pg_name,
+                                        proto == IPPROTO_UDP?  "udp" : "tcp",
+                                        port,
+                                        i,
+                                        progp->pg_vers[i]->vs_hidden?
+                                                " (but not telling portmap)" : "");
+
+                        if (progp->pg_vers[i]->vs_hidden)
+                                continue;
+
+                        error = rpc_register(progp->pg_prog, i, proto, port, &dummy);
+                        if (error < 0)
+                                break;
+                        if (port && !dummy) {
+                                error = -EACCES;
+                                break;
+                        }
                 }
         }