delete. Added a comment how the security should be improved by adding another restriction. Also mentioned that it's probably a bad idea that vm_delete_region() will not wait until the region has been freed, but just "mark" it as to be freed. git-svn-id: file:///srv/svn/repos/haiku/trunk/current@4319 a95241bf-73f2-0310-859d-f6bbb57e9c96