linux-kernel - Re: [PATCH v3] arm64: NUMA: Kconfig: Increase NODES

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Date:   Tue,  3 Nov 2020 14:54:52 +0000
From:   Will Deacon <will@...nel.org>
To:     linux-arm-kernel@...ts.infradead.org,
        Vanshidhar Konda <vanshikonda@...amperecomputing.com>
Cc:     catalin.marinas@....com, kernel-team@...roid.com,
        Will Deacon <will@...nel.org>, linux-kernel@...r.kernel.org,
        Valentin.Schneider@....com, Anshuman.Khandual@....com,
        patches@...erecomputing.com
Subject: Re: [PATCH v3] arm64: NUMA: Kconfig: Increase NODES_SHIFT to 4

On Fri, 30 Oct 2020 10:30:50 -0700, Vanshidhar Konda wrote:
> The current arm64 default config limits max NUMA nodes available on
> system to 4 (NODES_SHIFT = 2). Today's arm64 systems can reach or
> exceed 16 NUMA nodes. To accomodate current hardware and to fit
> NODES_SHIFT within page flags on arm64, increase NODES_SHIFT to 4.
> 
> Discussion on v1 of the patch:
> https://lore.kernel.org/linux-arm-kernel/20201020173409.1266576-1-vanshikonda@os.amperecomputing.com/
> 
> [...]

Applied to arm64 (for-next/fixes), thanks!

[1/1] arm64: NUMA: Kconfig: Increase NODES_SHIFT to 4
      https://git.kernel.org/arm64/c/2a13c13b39a8

Cheers,
-- 
Will

https://fixes.arm64.dev
https://next.arm64.dev
https://will.arm64.dev