am-utils-6.2 - use new get_nfs_xprt() and put_nfs_xprt() functions

From: Ian Kent <raven@themaw.net>

The nfs_quick_reply() function needs to know the current RPC transport
outside of the NFS LOOKUP method call. It needs this to reply to the
NFS LOOKUP call that initiated the mount.

Now there are functions that avoid transport corruption if another
request comes in during the backgroud mount make nfs_quick_reply()
use them.

Signed-off-by: Ian Kent <raven@themaw.net>
---
 amd/amfs_generic.c |    3 +--
 amd/map.c          |    2 +-
 amd/nfs_subr.c     |    3 ++-
 3 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/amd/amfs_generic.c b/amd/amfs_generic.c
index c352a32..86d0ab7 100644
--- a/amd/amfs_generic.c
+++ b/amd/amfs_generic.c
@@ -1129,8 +1129,7 @@ amfs_generic_mount_child(am_node *new_mp, int *error_return)
    */
   if (current_transp && !new_mp->am_transp) {
     dlog("Saving RPC transport for %s", new_mp->am_path);
-    new_mp->am_transp = (SVCXPRT *) xmalloc(sizeof(SVCXPRT));
-    *(new_mp->am_transp) = *current_transp;
+    new_mp->am_transp = get_nfs_xprt(current_transp);
   }
   if (error && new_mp->am_al && new_mp->am_al->al_mnt &&
       (new_mp->am_al->al_mnt->mf_ops == &amfs_error_ops))
diff --git a/amd/map.c b/amd/map.c
index 0d404cf..bcb2156 100644
--- a/amd/map.c
+++ b/amd/map.c
@@ -471,7 +471,7 @@ free_map(am_node *mp)
   XFREE(mp->am_name);
   XFREE(mp->am_path);
   XFREE(mp->am_pref);
-  XFREE(mp->am_transp);
+  put_nfs_xprt(mp->am_transp);
 
   if (mp->am_al)
     free_loc(mp->am_al);
diff --git a/amd/nfs_subr.c b/amd/nfs_subr.c
index 0a43b98..07d960d 100644
--- a/amd/nfs_subr.c
+++ b/amd/nfs_subr.c
@@ -291,7 +291,8 @@ nfs_quick_reply(am_node *mp, int error)
     /*
      * Free up transp.  It's only used for one reply.
      */
-    XFREE(mp->am_transp);
+    put_nfs_xprt(mp->am_transp);
+    mp->am_transp = NULL;
     dlog("Quick reply sent for %s", mp->am_al->al_mnt->mf_mount);
   }
 }