Index: ChangesList.php
===================================================================
--- ChangesList.php	(revision 44328)
+++ ChangesList.php	(working copy)
 
@@ -323,6 +323,19 @@
 			return '<span class="mw-rc-unwatched">' . $link . '</span>';
 		}
 	}
+	
+	/** Inserts a rollback link */
+	protected function insertRollback(&$s, &$rc ) {
+		global $wgUser;
+		
+		$page = $rc->getTitle();
+		/** Check for rollback and edit permissions, disallow special pages, and only
+		  * show a link on the top-most revision */
+		if( $page->userCan( 'rollback' ) && $page->userCan( 'edit' ) && ($page->getArticleID() > 0) && ($page->getLatestRevID() == $rc->mAttribs['rc_this_oldid']) ) {
+			$rev = new Revision( array(	'id' => $rc->mAttribs['rc_this_oldid'] ) );
+			$s  .= ' '.$this->skin->generateRollback( $rev );
+		}			
+	}
 }
 
 
@@ -383,6 +396,8 @@
 		$this->insertAction($s, $rc);
 		# Edit or log comment
 		$this->insertComment($s, $rc);
+		# Rollback
+		$this->insertRollback($s, $rc);
 
 		# Mark revision as deleted if so
 		if ( !$rc_log_type && $this->isDeleted($rc,Revision::DELETED_TEXT) )