Re: [PATCHv3 1/2] mm/gup: fix omission of check on FOLL_LONGTERM in get_user_pages_fast()

[Christoph Hellwig]

On Tue, Jun 11, 2019 at 08:29:35PM +0800, Pingfan Liu wrote:
> Unable to get a NVME device to have a test. And when testing fio on the

How would a nvme test help?  FOLL_LONGTERM isn't used by any performance
critical path to start with, so I don't see how this patch could be
a problem.