lkml.org 
[lkml]   [2021]   [Mar]   [25]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH 3/3] mm/devmap: Remove pgmap accounting in the get_user_pages_fast() path
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

\
 
 \ /
  Last update: 2021-03-25 15:36    [W:0.288 / U:0.100 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site