Re: [RFC PATCH 0/2] mm/gup: fix gup_fast with dynamic page table folding

From: Jason Gunthorpe
Date: Fri Aug 28 2020 - 11:20:15 EST


On Fri, Aug 28, 2020 at 05:01:03PM +0200, Gerald Schaefer wrote:

> Just to make sure, you are referring to some future / planned
> changes to mm/pagewalk.c, and not some currently existing
> pagetable walkers already using the READ_ONCE logic w/o
> spinlocks?

Yes no current code, just something I've been looking at slowly.

Jason