Re: [PATCH v8 10/10] mm: Renumber FOLL_PIN and FOLL_GET down

Jason Gunthorpe [off-list ref] wrote:

Isn't that this:

if (cleanup_flags & PAGE_CLEANUP_NEEDED)
   gup_put_folio(folio, 1, cleanup_flags & PAGE_CLEANUP_UNPIN)


?

Yes.  As claimed, that would be three states.

Three states - decr get, decr pinned, do nothing?

Yes.  Don't worry about it.  I'm not going to do it in gup.c.

David