[CRIU] [PATCH 0/6] mnt: try to split a mount tree to restore over-mounted mounts

[Pavel Emelyanov]

On 09/13/2016 07:19 AM, Andrei Vagin wrote:
> From: Andrei Vagin <avagin at virtuozzo.com>
> 
> If a mount overmounts something else, we can try to restore it
> separetly and then move it to the right places after restoring
> all mounts.

And we don't support it now, do we? Where is this check in the validate_mounts()?