linux-kernel - Re: [PATCH v4 7/7] x86/vdso: Move out the CPU number store

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Message-ID: <alpine.DEB.2.21.1806251739450.1821@nanos.tec.linutronix.de>
Date:   Mon, 25 Jun 2018 17:40:36 +0200 (CEST)
From:   Thomas Gleixner <tglx@...utronix.de>
To:     Andy Lutomirski <luto@...nel.org>
cc:     "Bae, Chang Seok" <chang.seok.bae@...el.com>,
        "H. Peter Anvin" <hpa@...or.com>, Ingo Molnar <mingo@...nel.org>,
        Andi Kleen <ak@...ux.intel.com>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        "Metzger, Markus T" <markus.t.metzger@...el.com>,
        "Ravi V. Shankar" <ravi.v.shankar@...el.com>,
        LKML <linux-kernel@...r.kernel.org>,
        Peter Zijlstra <peterz@...radead.org>
Subject: Re: [PATCH v4 7/7] x86/vdso: Move out the CPU number store

On Fri, 22 Jun 2018, Andy Lutomirski wrote:

> On Fri, Jun 22, 2018 at 11:02 AM Bae, Chang Seok
> <chang.seok.bae@...el.com> wrote:
> >
> > > Still setup_cpu_number() sucks.
> >
> > How about setup_cpu_and_node_number()?
> 
> setup_fast_cpu_node_nr()?  setup_cpunr_regs()?  I don't have any
> brilliant ideas.  Thomas?

It's really hard to find a good one. setup_cpu_node_cache() might work, but
it's not brilliant either.

Thanks,

	tglx