Re: [PATCH 0/4] mm: migrate: more folio conversion

From: Kefeng Wang
Date: Wed Aug 02 2023 - 08:38:36 EST

On 2023/8/2 19:47, David Hildenbrand wrote:
On 02.08.23 11:53, Kefeng Wang wrote:
This patch series converts several functions to use folio in migrate.c.

Please clearly spell out in the patch descriptions when you are changing mapcount logic and which effects that might have (both, positive and negative) for PTE-mapped THP.

Oh, I see your comments on another mail[1], the folio_estimated_sharers()
is not good to evaluate the sharing by multiple processes, will read more
history of the mail's discussion, maybe just ignore the first three patches.


[1] [PATCH 0/2] don't use mapcount() to check large folio sharing