diff --git a/course/report/log/lib.php b/course/report/log/lib.php
index 8d3b201fa41..d2b789e404d 100644
--- a/course/report/log/lib.php
+++ b/course/report/log/lib.php
@@ -51,7 +51,8 @@ function print_mnet_log_selector_form($hostid, $course, $selecteduser=0, $select
     if ($hostid == $CFG->mnet_localhost_id && $course->id != SITEID) {
         $courseusers = get_users_by_capability($context, 'moodle/course:view', '', 'lastname ASC, firstname ASC', '','u.id, u.firstname, u.lastname, u.idnumber',$selectedgroup,null, false);
     } else {
-        $courseusers = get_site_users("u.lastaccess DESC", "u.id, u.firstname, u.lastname, u.idnumber");
+        // this may be a lot of users :-(
+        $courseusers = $DB->get_records('user', array('deleted'=>0), 'u.lastaccess DESC', 'u.id, u.firstname, u.lastname, u.idnumber');
     }
 
     if (count($courseusers) < COURSE_MAX_USERS_PER_DROPDOWN && !$showusers) {
@@ -274,7 +275,7 @@ function print_mnet_log_selector_form($hostid, $course, $selecteduser=0, $select
 function print_log_selector_form($course, $selecteduser=0, $selecteddate='today',
                                  $modname="", $modid=0, $modaction='', $selectedgroup=-1, $showcourses=0, $showusers=0, $logformat='showashtml') {
 
-    global $USER, $CFG;
+    global $USER, $CFG, $DB;
 
     // first check to see if we can override showcourses and showusers
     $numcourses =  count_records_select("course", "", "COUNT(id)");
@@ -305,7 +306,8 @@ function print_log_selector_form($course, $selecteduser=0, $selecteddate='today'
     if ($course->id != SITEID) {
         $courseusers = get_users_by_capability($context, 'moodle/course:view', '', 'lastname ASC, firstname ASC', '','u.id, u.firstname, u.lastname, u.idnumber',$selectedgroup,null, false);
     } else {
-        $courseusers = get_site_users("u.lastaccess DESC", "u.id, u.firstname, u.lastname, u.idnumber");
+        // this may be a lot of users :-(
+        $courseusers = $DB->get_records('user', array('deleted'=>0), 'u.lastaccess DESC', 'u.id, u.firstname, u.lastname, u.idnumber');
     }
     
     if (count($courseusers) < COURSE_MAX_USERS_PER_DROPDOWN && !$showusers) {
diff --git a/lib/deprecatedlib.php b/lib/deprecatedlib.php
index 078e7cdd0d3..0a1613fd340 100644
--- a/lib/deprecatedlib.php
+++ b/lib/deprecatedlib.php
@@ -73,7 +73,7 @@ function isteacher($courseid=0, $userid=0, $obsolete_includeadmin=true) {
  * @return bool
  */
 function isteacherinanycourse($userid=0, $includeadmin=true) {
-    global $USER, $CFG;
+    global $USER, $CFG, $DB;
 
     if (empty($CFG->rolesactive)) {     // Teachers are locked out during an upgrade to 1.7
         return false;
@@ -86,14 +86,14 @@ function isteacherinanycourse($userid=0, $includeadmin=true) {
         $userid = $USER->id;
     }
 
-    if (!record_exists('role_assignments', 'userid', $userid)) {    // Has no roles anywhere
+    if (!$DB->record_exists('role_assignments', array('userid'=>$userid))) {    // Has no roles anywhere
         return false;
     }
 
 /// If this user is assigned as an editing teacher anywhere then return true
     if ($roles = get_roles_with_capability('moodle/legacy:editingteacher', CAP_ALLOW)) {
         foreach ($roles as $role) {
-            if (record_exists('role_assignments', 'roleid', $role->id, 'userid', $userid)) {
+            if ($DB->record_exists('role_assignments', array('roleid'=>$role->id, 'userid'=>$userid))) {
                 return true;
             }
         }
@@ -102,7 +102,7 @@ function isteacherinanycourse($userid=0, $includeadmin=true) {
 /// If this user is assigned as a non-editing teacher anywhere then return true
     if ($roles = get_roles_with_capability('moodle/legacy:teacher', CAP_ALLOW)) {
         foreach ($roles as $role) {
-            if (record_exists('role_assignments', 'roleid', $role->id, 'userid', $userid)) {
+            if ($DB->record_exists('role_assignments', array('roleid'=>$role->id, 'userid'=>$userid))) {
                 return true;
             }
         }
@@ -242,20 +242,6 @@ function get_course_users($courseid, $sort='ul.timeaccess DESC', $exceptions='',
 
 }
 
-/**
- * Returns a list of all site users
- * Obsolete, just calls get_course_users(SITEID)
- *
- * @uses SITEID
- * @deprecated Use {@link get_course_users()} instead.
- * @param string $fields A comma separated list of fields to be returned from the chosen table.
- * @return object|false  {@link $USER} records or false if error.
- */
-function get_site_users($sort='u.lastaccess DESC', $fields='*', $exceptions='') {
-
-    return get_course_users(SITEID, $sort, $exceptions, $fields);
-}
-
 
 ########### FROM weblib.php ##########################################################################