linux-kernel - Re: [PATCH mm-unstable v3 0/4] mm/mglru: Kconfig cleanup

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Message-ID: <CAOUHufaK3X0d9ovEMkFfb3cugqzcnxxqn=o6O-1oohaYANtB0A@mail.gmail.com>
Date: Tue, 19 Dec 2023 21:16:06 -0700
From: Yu Zhao <yuzhao@...gle.com>
To: Kinsey Ho <kinseyho@...gle.com>, Donet Tom <donettom@...ux.vnet.ibm.com>
Cc: Andrew Morton <akpm@...ux-foundation.org>, linux-mm@...ck.org, 
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH mm-unstable v3 0/4] mm/mglru: Kconfig cleanup

On Tue, Dec 19, 2023 at 9:01 PM Kinsey Ho <kinseyho@...gle.com> wrote:
>
> This series is the result of the following discussion:
> https://lore.kernel.org/47066176-bd93-55dd-c2fa-002299d9e034@linux.ibm.com/
>
> It mainly avoids building the code that walks page tables on CPUs that
> use it, i.e., those don't support hardware accessed bit. Specifically,
> it introduces a new Kconfig to guard some of functions added by
> commit bd74fdaea146 ("mm: multi-gen LRU: support page table walks")
> on CPUs like POWER9, on which the series was tested.
>
>
> Kinsey Ho (4):
>   mm/mglru: add CONFIG_ARCH_HAS_HW_PTE_YOUNG
>   mm/mglru: add CONFIG_LRU_GEN_WALKS_MMU
>   mm/mglru: remove CONFIG_MEMCG
>   mm/mglru: remove CONFIG_TRANSPARENT_HUGEPAGE
>
>  arch/Kconfig                   |   8 +
>  arch/arm64/Kconfig             |   1 +
>  arch/x86/Kconfig               |   1 +
>  arch/x86/include/asm/pgtable.h |   6 -
>  include/linux/memcontrol.h     |   2 +-
>  include/linux/mm_types.h       |  16 +-
>  include/linux/mmzone.h         |  28 +---
>  include/linux/pgtable.h        |   2 +-
>  kernel/fork.c                  |   2 +-
>  mm/Kconfig                     |   4 +
>  mm/vmscan.c                    | 271 ++++++++++++++++++---------------
>  11 files changed, 174 insertions(+), 167 deletions(-)

+Donet Tom <donettom@...ux.vnet.ibm.com>
who is also working on this.

Donet, could try this latest version instead? If it works well as the
old one you've been using, can you please provide your Tested-by tag?
Thanks.