Index: includes/bootstrap.inc
===================================================================
RCS file: /cvs/drupal/drupal/includes/bootstrap.inc,v
retrieving revision 1.208
diff -u -p -r1.208 bootstrap.inc
--- includes/bootstrap.inc	14 Apr 2008 17:48:33 -0000	1.208
+++ includes/bootstrap.inc	1 May 2008 22:12:17 -0000
@@ -962,7 +962,7 @@ function _drupal_bootstrap($phase) {
 
     case DRUPAL_BOOTSTRAP_SESSION:
       require_once variable_get('session_inc', './includes/session.inc');
-      session_set_save_handler('sess_open', 'sess_close', 'sess_read', 'sess_write', 'sess_destroy_sid', 'sess_gc');
+      session_set_save_handler('_sess_open', '_sess_close', '_sess_read', '_sess_write', 'sess_destroy_sid', 'sess_gc');
       session_start();
       break;
 
Index: includes/cache.inc
===================================================================
RCS file: /cvs/drupal/drupal/includes/cache.inc,v
retrieving revision 1.18
diff -u -p -r1.18 cache.inc
--- includes/cache.inc	14 Apr 2008 17:48:33 -0000	1.18
+++ includes/cache.inc	1 May 2008 22:12:17 -0000
@@ -144,7 +144,7 @@ function cache_clear_all($cid = NULL, $t
   if (empty($cid)) {
     if (variable_get('cache_lifetime', 0)) {
       // We store the time in the current user's $user->cache variable which
-      // will be saved into the sessions table by sess_write(). We then
+      // will be saved into the sessions table by _sess_write(). We then
       // simulate that the cache was flushed for this user by not returning
       // cached data that was cached before the timestamp.
       $user->cache = time();
Index: includes/session.inc
===================================================================
RCS file: /cvs/drupal/drupal/includes/session.inc,v
retrieving revision 1.48
diff -u -p -r1.48 session.inc
--- includes/session.inc	16 Apr 2008 11:35:51 -0000	1.48
+++ includes/session.inc	1 May 2008 22:12:17 -0000
@@ -6,15 +6,30 @@
  * User session handling functions.
  */
 
-function sess_open($save_path, $session_name) {
+/**
+ * Session handler assigned by session_set_save_handler(). This function 
+ * should not be used directly. Session variables should instead be 
+ * accessed via the $_SESSION superglobal.
+ */
+function _sess_open($save_path, $session_name) {
   return TRUE;
 }
 
-function sess_close() {
+/**
+ * Session handler assigned by session_set_save_handler(). This function 
+ * should not be used directly. Session variables should instead be 
+ * accessed via the $_SESSION superglobal.
+ */
+function _sess_close() {
   return TRUE;
 }
 
-function sess_read($key) {
+/**
+ * Session handler assigned by session_set_save_handler(). This function 
+ * should not be used directly. Session variables should instead be 
+ * accessed via the $_SESSION superglobal.
+ */
+function _sess_read($key) {
   global $user;
 
   // Write and Close handlers are called after destructing objects since PHP 5.0.5
@@ -53,7 +68,12 @@ function sess_read($key) {
   return $user->session;
 }
 
-function sess_write($key, $value) {
+/**
+ * Session handler assigned by session_set_save_handler(). This function 
+ * should not be used directly. Session variables should instead be 
+ * accessed via the $_SESSION superglobal.
+ */
+function _sess_write($key, $value) {
   global $user;
 
   // If saving of session data is disabled or if the client doesn't have a session,