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

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Date:   Fri, 12 May 2023 14:47:50 -0700
From:   Nhat Pham <nphamcs@...il.com>
To:     Andrew Morton <akpm@...ux-foundation.org>
Cc:     Catalin Marinas <catalin.marinas@....com>,
        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 Fri, May 12, 2023 at 2:15 PM Andrew Morton <akpm@...ux-foundation.org> wrote:
>
> On Fri, 12 May 2023 11:42:26 +0100 Catalin Marinas <catalin.marinas@....com> wrote:
>
> > 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.
>
> Thanks, I updated the changelog thusly.  Note that this patch is
> transitory - it will be squashed into "cachestat: wire up cachestat for
> other architectures".

It's my expectation too - it makes sense to squash it to the other patch.
Thanks, Andrew!