linux-kernel - Re: [RFC PATCH 1/2] timekeeping: Add timekeeping_adjust

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Message-ID: <87blcsawy3.fsf@nanos.tec.linutronix.de>
Date:   Wed, 10 Feb 2021 14:12:20 +0100
From:   Thomas Gleixner <tglx@...utronix.de>
To:     Hikaru Nishida <hikalium@...omium.org>,
        linux-kernel@...r.kernel.org
Cc:     suleiman@...gle.com, Hikaru Nishida <hikalium@...omium.org>,
        Arnd Bergmann <arnd@...db.de>,
        Geert Uytterhoeven <geert@...ux-m68k.org>,
        Ingo Molnar <mingo@...nel.org>,
        John Stultz <john.stultz@...aro.org>,
        Kurt Kanzenbach <kurt@...utronix.de>,
        Linus Walleij <linus.walleij@...aro.org>,
        Stephen Boyd <sboyd@...nel.org>
Subject: Re: [RFC PATCH 1/2] timekeeping: Add timekeeping_adjust_boottime

On Wed, Feb 10 2021 at 19:39, Hikaru Nishida wrote:
> From: Hikaru Nishida <hikalium@...omium.org>
>
> This introduces timekeeping_adjust_boottime() to give an interface to
> modules that enables to advance CLOCK_BOOTTIME from userspace for
> virtualized environments. Later patch introduces a sysfs interface
> which calls this function.

Not going to happen. That's just wrong in several ways.

The underlying problem of virt and timekeeping needs to be fixed not
hacked around it.

Thanks,

        tglx