From: Ben Pfaff <blp@cs.stanford.edu>
Date: Wed, 4 Jan 2006 19:49:20 +0000 (+0000)
Subject: Clarify ROX.
X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=58bfb6e07301c84e21ef9de2aa5fb38546098401;p=pintos-anon

Clarify ROX.
---

diff --git a/doc/userprog.texi b/doc/userprog.texi
index 7f50192..71b084a 100644
--- a/doc/userprog.texi
+++ b/doc/userprog.texi
@@ -778,7 +778,8 @@ hurt even now.
 You can use @func{file_deny_write} to prevent writes to an open file.
 Calling @func{file_allow_write} on the file will re-enable them (unless
 the file is denied writes by another opener).  Closing a file will also
-re-enable writes.
+re-enable writes.  Thus, to deny writes to process's executable, you
+must keep it open as long as the process is still running.
 
 @node Project 2 FAQ
 @section FAQ