[HEADS-UP] Using stored immutable file birth time for SMB File-ID

[Jeremy Allison]

On Wed, Jun 26, 2019 at 07:59:08PM +0200, Ralph Boehme wrote:
> 
> Thinking about it, I will go and ask MS what their client uses the
> server provided File-IDs for, if at all.

This was just touched in by the MS SMB client team presentation,
the File-ID's are used to uniquely identify files in their
buffer cache I think. They have to be identical between the
different query methods at least (that was the question that
was asked).