linux-kernel - Re: [PATCH v3 1/1] mm: numa_memblks: introduce numa_add_reserved

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Message-Id: <20250508174229.c310803222405c1b7d60e104@linux-foundation.org>
Date: Thu, 8 May 2025 17:42:29 -0700
From: Andrew Morton <akpm@...ux-foundation.org>
To: Yuquan Wang <wangyuquan1236@...tium.com.cn>
Cc: Jonathan.Cameron@...wei.com, dan.j.williams@...el.com, rppt@...nel.org,
 rafael@...nel.org, lenb@...nel.org, alison.schofield@...el.com,
 rrichter@....com, bfaccini@...dia.com, haibo1.xu@...el.com,
 david@...hat.com, chenhuacai@...nel.org, linux-cxl@...r.kernel.org,
 linux-acpi@...r.kernel.org, linux-kernel@...r.kernel.org,
 linux-mm@...ck.org, chenbaozi@...tium.com.cn, loongarch@...ts.linux.dev
Subject: Re: [PATCH v3 1/1] mm: numa_memblks: introduce
 numa_add_reserved_memblk

On Thu,  8 May 2025 10:27:19 +0800 Yuquan Wang <wangyuquan1236@...tium.com.cn> wrote:

> acpi_parse_cfmws() currently adds empty CFMWS ranges to numa_meminfo
> with the expectation that numa_cleanup_meminfo moves them to
> numa_reserved_meminfo. There is no need for that indirection when it is
> known in advance that these unpopulated ranges are meant for
> numa_reserved_meminfo in support of future hotplug / CXL provisioning.
> 
> Introduce and use numa_add_reserved_memblk() to add the empty CFMWS
> ranges directly.
> 
> ...
>
>  drivers/acpi/numa/srat.c     |  2 +-
>  include/linux/numa_memblks.h |  1 +
>  mm/numa_memblks.c            | 22 ++++++++++++++++++++++

I'm not sure which tree this best belongs to so I'll add it to mm-git. 
If it later pops up in another tree, I'll drop it again.