Re: [PATCH RFC 0/5] mm/gup: Introduce exclusive GUP pinning

[Christoph Hellwig]

On Wed, Jun 19, 2024 at 08:51:35AM -0300, Jason Gunthorpe wrote:
> If you can't agree with the guest_memfd people on how to get there
> then maybe you need a guest_memfd2 for this slightly different special
> stuff instead of intruding on the core mm so much. (though that would
> be sad)

Or we're just not going to support it at all.  It's not like supporting
this weird usage model is a must-have for Linux to start with.