lkml.org 
[lkml]   [2013]   [May]   [13]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH V2 1/2] mm: hotplug: implement non-movable version of get_user_pages() called get_user_pages_non_movable()
On Mon, May 13, 2013 at 10:54:03AM -0400, Jeff Moyer wrote:
> How do you propose to move the ring pages?

It's the same problem as doing a TLB shootdown: flush the old pages from
userspace's mapping, copy any existing data to the new pages, then
repopulate the page tables. It will likely require the addition of
address_space_operations for the mapping, but that's not too hard to do.

-ben
--
"Thought is the essence of where you are now."


\
 
 \ /
  Last update: 2013-05-13 17:41    [W:0.094 / U:1.540 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site