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b=uvDxH9sr+HD0nbtIYkteIYrfNShEftDgUCzEe+rMCtAPa/oxs5AnZUD9NL0rMTpik gM8qBwIz/FSjH3Vfgqskh88O33BCynGu9CloCCLf9CH+E4VCbKPR1WKahR0io4VT6R qv8aX7VMXupOioWlrxpnPJB+vGGFs7RhcUO9QtgY= Date: Tue, 6 May 2025 18:55:44 -0700 From: Andrew Morton To: Yuquan Wang Cc: Jonathan.Cameron@huawei.com, dan.j.williams@intel.com, rppt@kernel.org, rafael@kernel.org, lenb@kernel.org, alison.schofield@intel.com, rrichter@amd.com, bfaccini@nvidia.com, haibo1.xu@intel.com, david@redhat.com, chenhuacai@kernel.org, linux-cxl@vger.kernel.org, linux-acpi@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, chenbaozi@phytium.com.cn, loongarch@lists.linux.dev Subject: Re: [PATCH v2] mm: numa_memblks: introduce numa_add_reserved_memblk Message-Id: <20250506185544.474d025e43ebadadaedb982a@linux-foundation.org> In-Reply-To: <20250506062245.3816791-1-wangyuquan1236@phytium.com.cn> References: <20250506062245.3816791-1-wangyuquan1236@phytium.com.cn> X-Mailer: Sylpheed 3.8.0beta1 (GTK+ 2.24.33; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Rspam-User: X-Rspamd-Queue-Id: AE0BA40004 X-Rspamd-Server: rspam04 X-Stat-Signature: smtdhqfcira4qxfd7fq6jasfy1qbx7sa X-HE-Tag: 1746582946-516877 X-HE-Meta: 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 ViUNt9iB fHbWX X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Tue, 6 May 2025 14:22:45 +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 > --- > > Changes in v2 (Thanks to Dan & Alison): > - Use numa_add_reserved_memblk() to replace numa_add_memblk() in acpi_parse_cfmws() > - Add comments to describe the usage of numa_add_reserved_memblk() > - Updating the commit message to clarify the purpose of the patch > > By the way, "LoongArch: Introduce the numa_memblks conversion" is in linux-next. So is this patch dependent upon "LoongArch: Introduce the numa_memblks conversion"?