Method unmount

Engine/source/core/volume.cpp:791–800

}

FileSystemRef MountSystem::unmount(String root)
{
   FileSystemRef first = _removeMountFromList(root);

   // remove remaining FSes on this root
   while (!_removeMountFromList(root).isNull())
      ;
   
   return first;
}

bool MountSystem::unmount(FileSystemRef fs)
{