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

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On 6/28/2022 5:42 AM, David Hildenbrand wrote:
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@xxxxxxx>
Acked-by: Felix Kuehling <Felix.Kuehling@xxxxxxx>
Reviewed-by: Alistair Popple <apopple@xxxxxxxxxx>
---
I think my review feedback regarding FOLL_LRU has been ignored.

Sorry David, this has been addressed in v7.

Regards,
Alex Sierra






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