Hello.

On Tue, Jan 21, 2020 at 10:11:13AM -0800, Minchan Kim wrote:

quoted

quoted

I also think people don't want to give an KSM hint to non-mergeable area.

And how the manager knows which data is mergable?

Oleksandr, could you say your thought why you need address range based
API?

It seems I've overlooked an important piece of this submission: one
cannot apply the hint to all the anonymous mapping regardless of address
range. For KSM I'd rather either have a possibility to hint all the
anonymous mappings, or, as it was suggested previously, be able to iterate
over existing mappings using some (fd-based?) API.

-- 
  Best regards,
    Oleksandr Natalenko (post-factum)
    Senior Software Maintenance Engineer