7203 unlinking a directory on tmpfs does not remove the directory entries
Reviewed by: Robert Mustacchi <rm@joyent.com>
Reviewed by: Alexander Stetsenko <astetsenko@racktopsystems.com>

@@ -25,10 +25,11 @@
  */
 
 /*
  * Copyright (c) 2015, Joyent, Inc. All rights reserved.
  * Copyright 2015 Nexenta Systems, Inc.  All rights reserved.
+ * Copyright 2016 RackTop Systems.
  */
 
 #include <sys/types.h>
 #include <sys/param.h>
 #include <sys/t_lock.h>

@@ -1102,11 +1103,12 @@
         rw_enter(&parent->tn_rwlock, RW_WRITER);
         rw_enter(&tp->tn_rwlock, RW_WRITER);
 
         if (tp->tn_type != VDIR ||
             (error = secpolicy_fs_linkdir(cred, dvp->v_vfsp)) == 0)
-                error = tdirdelete(parent, tp, nm, DR_REMOVE, cred);
+                error = tdirdelete(parent, tp, nm, tp->tn_type == VDIR ?
+                    DR_RMDIR : DR_REMOVE, cred);
 
         rw_exit(&tp->tn_rwlock);
         rw_exit(&parent->tn_rwlock);
         vnevent_remove(TNTOV(tp), dvp, nm, ct);
         tmpnode_rele(tp);