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

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Message-ID: <aBwuY7Rj3mpr5Pm4@aschofie-mobl2.lan>
Date: Wed, 7 May 2025 21:09:07 -0700
From: Alison Schofield <alison.schofield@...el.com>
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>,
	<akpm@...ux-foundation.org>, <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, May 08, 2025 at 10:27:19AM +0800, Yuquan Wang 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.
> 
> Signed-off-by: Yuquan Wang <wangyuquan1236@...tium.com.cn>

Reviewed-by: Alison Schofield <alison.schofield@...el.com>