[PATCH v6 02/14] mm: handling Non-LRU pages returned by vm_normal_pages

David Hildenbrand david at redhat.com
Tue Jun 28 10:42:44 UTC 2022


On 28.06.22 02:14, 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.
> 
> We also introduced a FOLL_LRU flag that adds the same behaviour to
> follow_page and related APIs, to allow callers to specify that they
> expect to put pages on an LRU list.
> 
> Signed-off-by: Alex Sierra <alex.sierra at amd.com>
> Acked-by: Felix Kuehling <Felix.Kuehling at amd.com>
> Reviewed-by: Alistair Popple <apopple at nvidia.com>
> ---

I think my review feedback regarding FOLL_LRU has been ignored.


-- 
Thanks,

David / dhildenb



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