Re: [PATCH v3 1/1] mm: numa_memblks: introduce numa_add_reserved_memblk

From: Xi Ruoyao
Date: Tue Jun 03 2025 - 09:30:46 EST


On Tue, 2025-06-03 at 06:06 -0700, Guenter Roeck wrote:
> Hi,
>
> 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@xxxxxxxxxxxxxx>
>
> Just on case this has not been reported yet:
>
> Building loongarch:defconfig ... failed
> --------------
> Error log:
> drivers/acpi/numa/srat.c: In function 'acpi_parse_cfmws':
> drivers/acpi/numa/srat.c:467:13: error: implicit declaration of
> function 'numa_add_reserved_memblk'

The fix is queued at
https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson.git/commit/?h=loongarch-next&id=a24f2fb70cb62180486ad4d74f809ff35ddd1cf9


--
Xi Ruoyao <xry111@xxxxxxxxxxx>
School of Aerospace Science and Technology, Xidian University