linux-kernel - Re: [PATCH 0/4] x86/mm: some cleanups for pagetable setup code

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Message-ID: <DDO0U51QORMC.2UIDZU10FAFH0@google.com>
Date: Tue, 21 Oct 2025 13:06:50 +0000
From: Brendan Jackman <jackmanb@...gle.com>
To: Brendan Jackman <jackmanb@...gle.com>, Thomas Gleixner <tglx@...utronix.de>, 
	Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>, 
	Dave Hansen <dave.hansen@...ux.intel.com>, <x86@...nel.org>, 
	"H. Peter Anvin" <hpa@...or.com>, Andy Lutomirski <luto@...nel.org>, Peter Zijlstra <peterz@...radead.org>
Cc: <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 0/4] x86/mm: some cleanups for pagetable setup code

On Fri Oct 3, 2025 at 4:56 PM UTC, Brendan Jackman wrote:
> Per discussion in [0] I'm looking for ways to refactor this code to make
> ASI easier to deal with. But, while looking, I found some little things
> that seem like just straightforward cleanups without any real
> refactoring needed. So let's start there.
>
> The last two patches are closely related and could potentially be
> squashed, but I've split it in two because the first half is trivial,
> the second is more tricky and likely to be wrong.
>
> This applies to tip/master.
>
> [0] https://lore.kernel.org/all/20250924-b4-asi-page-alloc-v1-0-2d861768041f@google.com/T/#t
>
> Signed-off-by: Brendan Jackman <jackmanb@...gle.com>
> ---
> Brendan Jackman (4):
>       x86/mm: delete disabled debug code
>       x86/mm: harmonize return value of phys_pte_init()
>       x86/mm: drop unused return from pgtable setup functions
>       x86/mm: simplify calculation of max_pfn_mapped
>
>  arch/x86/include/asm/pgtable.h |  3 +-
>  arch/x86/mm/init.c             | 19 ++++----
>  arch/x86/mm/init_32.c          |  5 +--
>  arch/x86/mm/init_64.c          | 99 ++++++++++++++----------------------------
>  arch/x86/mm/mm_internal.h      | 11 ++---
>  5 files changed, 48 insertions(+), 89 deletions(-)
> ---
> base-commit: 47870f1fa057a411519108f0833dd2603179234f
> change-id: 20251003-x86-init-cleanup-0ad754910bac
>
> Best regards,

Hey, is anyone able to take a look at this?