Re: [PATCH 0/3] mm,thp,rmap: rework the use of subpages_mapcount

From: Hugh Dickins
Date: Fri Nov 18 2022 - 17:11:19 EST


On Fri, 18 Nov 2022, Andrew Morton wrote:
> On Fri, 18 Nov 2022 12:51:09 -0800 (PST) Hugh Dickins <hughd@xxxxxxxxxx> wrote:
>
> > But the first series has not yet graduated from mm-unstable,
> > so if Andrew and/or Kirill also prefer to have them combined into one
> > bit_spin_lock-less series, that I can do. (And the end result should be
> > identical, so would not complicate Johannes's lock_page_memcg() excision.)
>
> I'd prefer that approach.

I think you're saying that you prefer the other approach, to keep the
two series separate (second immediately after the first, or not, doesn't
matter), rather than combined into one bit_spin_lock-less series.
Please clarify! Thanks,

Hugh

> It's -rc5 and the earlier "mm,huge,rmap:
> unify and speed up compound mapcounts" series has had some testing.
> I'd prefer not to toss it all out and start again.