[lkml]   [2020]   [Feb]   [4]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: [PATCH v6 06/10] mm/memory_hotplug: Poison memmap in remove_pfn_range_from_zone()
On Sun, Oct 06, 2019 at 10:56:42AM +0200, David Hildenbrand wrote:
> Let's poison the pages similar to when adding new memory in
> sparse_add_section(). Also call remove_pfn_range_from_zone() from
> memunmap_pages(), so we can poison the memmap from there as well.
> While at it, calculate the pfn in memunmap_pages() only once.
> Cc: Andrew Morton <>
> Cc: David Hildenbrand <>
> Cc: Oscar Salvador <>
> Cc: Michal Hocko <>
> Cc: Pavel Tatashin <>
> Cc: Dan Williams <>
> Signed-off-by: David Hildenbrand <>

Looks good to me, it is fine as long as we do not access those pages later on,
and if my eyes did not lie to me, we have to proper checks (pfn_to_online_page)
in place to avoid that, so:

Reviewed-by: Oscar Salvador <>

Oscar Salvador

 \ /
  Last update: 2020-02-04 10:00    [W:0.028 / U:5.580 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site