[PATCH v9 04/14] mm: handling Non-LRU pages returned by vm_normal_pages

[David Hildenbrand]

On 15.07.22 17:05, Alex Sierra wrote:
> With DEVICE_COHERENT, we'll soon have vm_normal_pages() return
> device-managed anonymous pages that are not LRU pages. Although they
> behave like normal pages for purposes of mapping in CPU page, and for
> COW. They do not support LRU lists, NUMA migration or THP.
> 
> Callers to follow_page() currently don't expect ZONE_DEVICE pages,
> however, with DEVICE_COHERENT we might now return ZONE_DEVICE. Check
> for ZONE_DEVICE pages in applicable users of follow_page() as well.
> 
> Signed-off-by: Alex Sierra <alex.sierra at amd.com>
> Acked-by: Felix Kuehling <Felix.Kuehling at amd.com> (v2)
> Reviewed-by: Alistair Popple <apopple at nvidia.com> (v6)
>

Acked-by: David Hildenbrand <david at redhat.com>

-- 
Thanks,

David / dhildenb