Re: [PATCH] mm/migrate: make migrate_pages_batch() stats consistent.

From: Andrew Morton
Date: Tue Jun 18 2024 - 15:44:27 EST


On Tue, 18 Jun 2024 09:41:51 -0400 Zi Yan <zi.yan@xxxxxxxx> wrote:

> From: Zi Yan <ziy@xxxxxxxxxx>
>
> As Ying pointed out in [1], stats->nr_thp_failed needs to be updated to
> avoid stats inconsistency between MIGRATE_SYNC and MIGRATE_ASYNC when
> calling migrate_pages_batch().
>

Thanks. I'll add

Fixes: 7262f208ca68 ("mm/migrate: split source folio if it is on deferred split list")

and shall queue it for 6.10-rcX.

Please don't forget such details.