title: Full process name from task_struct
body: <p>I want to get full process name from <code>struct task_struct</code>. The <code>comm</code> field stores only 16 characters, while process name can be longer. Is there any way to get full process name? <br>
  This can be done through by getting <code>struct vm_area_struct</code> from <code>task_struct</code>, and further obtain file to which vm_area is mapped, but this is unreliable.</p>