linux-kernel - Re: [PATCH v6 5/7] ACPI/NUMA: Return memblk modification state from numa_fill

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Date: Tue, 30 Apr 2024 08:49:03 -0700
From: Alison Schofield <alison.schofield@...el.com>
To: Robert Richter <rrichter@....com>
Cc: "Rafael J. Wysocki" <rafael@...nel.org>,
	Dave Hansen <dave.hansen@...ux.intel.com>,
	Andy Lutomirski <luto@...nel.org>,
	Peter Zijlstra <peterz@...radead.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
	x86@...nel.org, Dan Williams <dan.j.williams@...el.com>,
	linux-acpi@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-cxl@...r.kernel.org, "H. Peter Anvin" <hpa@...or.com>,
	Len Brown <lenb@...nel.org>
Subject: Re: [PATCH v6 5/7] ACPI/NUMA: Return memblk modification state from
 numa_fill_memblks()

On Tue, Apr 30, 2024 at 11:21:58AM +0200, Robert Richter wrote:
> When registering a memory range a possibly overlapping memory block
> will be extended instead of creating a new one. If both ranges exactly
> overlap, the blocks remain unchanged and are just reused. The
> information if a memblock was extended is useful for diagnostics.
> 
> Change return code of numa_fill_memblks() to also report if memblocks
> have been modified.


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


> 
> Link: https://lore.kernel.org/all/ZiqnbD0CB9WUL1zu@aschofie-mobl2/T/#u
> Cc: Alison Schofield <alison.schofield@...el.com>
> Signed-off-by: Robert Richter <rrichter@....com>
> ---
>  arch/x86/mm/numa.c       | 33 ++++++++++++++++++---------------
>  drivers/acpi/numa/srat.c |  5 +++--
>  2 files changed, 21 insertions(+), 17 deletions(-)

snip