shadow_copy2_realpath() snapshot path component removal

[Volker Lendecke]

On Wed, Feb 12, 2014 at 02:43:23PM +0100, David Disseldorp wrote:
> As part of the shadow_copy2 module rewrite, logic was added to remove
> any snapshot component (e.g. @GMT-1984...) from the path returned by the
> realpath VFS hook.
> 
> Do you recall whether there was something at a protocol level that
> required this behaviour, or was it done to avoid wide link checks
> so that snapshots could reside outside of the base share?

It's the latter if I remember correctly. This allows
snapshots outside the share root with proper wide links
checks still in place.

Volker

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