[PATCH 00/24] vfs: require filesystems to explicitly opt-in to lease support

[Christoph Hellwig]

On Wed, Jan 14, 2026 at 03:14:13PM +0100, Amir Goldstein wrote:
> Very well then.
> How about EXPORT_OP_PERSISTENT_HANDLES?

Sure.

> > The problem there is that we very much do want to keep tmpfs
> > exportable, but it doesn't have stable handles (per-se).
> 
> Thinking out loud -
> It would be misguided to declare tmpfs as
> EXPORT_OP_PERSISTENT_HANDLES
> and regressing exports of tmpfs will surely not go unnoticed.

tmpfs handles are stable.  It's the tmpfs files that don't survive an
unmount or reboot..