Share a directory on an OpenVZ container on another container

[Tipika]

I want to share a directory from an OpenVZ container to another container, how I could do that?

1. do a symlink from /vz/private/109/common-stuff to /vz/private/108/common-stuff ?
2. bind mount /vz/private/109/common-stuff to /vz/private/108/common-stuff ?
3. Share the directory with smb from the container, mount on the host, then bind mount to /vz/root/108/common-stuff ?