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Date:   Sun, 30 Aug 2020 12:13:49 -0700
From:   Linus Torvalds <torvalds@...ux-foundation.org>
To:     Thomas Gleixner <tglx@...utronix.de>
Cc:     Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        "the arch/x86 maintainers" <x86@...nel.org>
Subject: Re: [GIT pull] x86/urgent for v5.9-rc2

On Sun, Aug 30, 2020 at 11:04 AM Thomas Gleixner <tglx@...utronix.de> wrote:
>
>    The historical inconsistent for_each_cpu() behaviour of
>    ignoring the cpumask and unconditionally claiming that CPU0 is in the
>    mask struck again. Sigh.

I guess we could remove the UP optimizations these days. It's not like
they matter like they used to.

Or leave the optimizations in the sense that they wouldn't do the
crazy bit searching, but they could look at bit 0 of the mask they're
passed..

              Linus

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