On Thu, Mar 18, 2021 at 10:03:06AM -0700, Dan Williams wrote: > Yes. I still need to answer the question of whether mapping > invalidation triggers longterm pin holders to relinquish their hold, > but that's a problem regardless of whether gup-fast is supported or > not.
It does not, GUP users do not interact with addres_space or mmu notifiers Jason
