linux-kernel - Re: [PATCH] arm64: wire up cachestat for arm64

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Message-ID: <ZF4YEjiTOeu3jx+5@arm.com>
Date:   Fri, 12 May 2023 11:42:26 +0100
From:   Catalin Marinas <catalin.marinas@....com>
To:     Nhat Pham <nphamcs@...il.com>
Cc:     akpm@...ux-foundation.org, linux-api@...r.kernel.org,
        kernel-team@...a.com, linux-arch@...r.kernel.org,
        hannes@...xchg.org, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org, arnd@...db.de, will@...nel.org,
        linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH] arm64: wire up cachestat for arm64

On Thu, May 11, 2023 at 02:28:43AM -0700, Nhat Pham wrote:
> cachestat is a new syscall that was previously wired in for most
> architectures:
> 
> https://lore.kernel.org/lkml/20230503013608.2431726-1-nphamcs@gmail.com/
> https://lore.kernel.org/linux-mm/20230510195806.2902878-1-nphamcs@gmail.com/
> 
> However, those patches miss arm64, which has its own syscall table in arch/arm64.
> This patch wires cachestat in for arm64.

You may want to clarify that this is for compat support on arm64,
otherwise native support uses the generic syscall numbers already.

> 
> Signed-off-by: Nhat Pham <nphamcs@...il.com>
> Suggested-by: Geert Uytterhoeven <geert@...ux-m68k.org>
> Suggested-by: Arnd Bergmann <arnd@...db.de>

Acked-by: Catalin Marinas <catalin.marinas@....com>