Recursive call and commitment control scope

Some info on what I'm doing:
- I'm trying to create a program to display the IFS directory that is
similar to what WRKLNK command is doing.  
 
- This program basically uses unix api, readdir, to get a list of
directory content and put them in a temp file in QTEMP.  The program
then displays the content on a subfile window.
 
- When user takes option 5 on the directory entry on this subfile, the
program call itself and the cycle continue (recursive call with
actgrp(*new) in the H spec).
 
- This temp file is under commitment control (set option commit=*all).
The program does rollback before exit to get rid of all the records that
created on that call level/activation group.
 
 
Problem encounter:
- The rollback part work correctly (only rollback record created on the
call level/activation group).  However, the data in the qtemp file that
created by one call level/activation group can be seen by the same
program that running on another activation group.  Anybody know if there
is a commitment control key word/option that can prevent this?