linux-kernel - Re: [patch V2 13/17] lib/vdso: Avoid highres update if clocksource is not VDSO capable

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Message-ID: <10c14195-1e7e-9900-8b97-0cfc33831a54@arm.com>
Date:   Mon, 17 Feb 2020 11:07:35 +0000
From:   Vincenzo Frascino <vincenzo.frascino@....com>
To:     Thomas Gleixner <tglx@...utronix.de>,
        LKML <linux-kernel@...r.kernel.org>
Cc:     x86@...nel.org, John Stultz <john.stultz@...aro.org>,
        Andy Lutomirski <luto@...nel.org>,
        Christophe Leroy <christophe.leroy@....fr>,
        Paolo Bonzini <pbonzini@...hat.com>,
        Juergen Gross <jgross@...e.com>,
        Michael Kelley <mikelley@...rosoft.com>,
        Sasha Levin <sashal@...nel.org>,
        Ralf Baechle <ralf@...ux-mips.org>,
        Paul Burton <paulburton@...nel.org>,
        James Hogan <jhogan@...nel.org>,
        Russell King <linux@...linux.org.uk>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Marc Zyngier <maz@...nel.org>, Andrei Vagin <avagin@...il.com>
Subject: Re: [patch V2 13/17] lib/vdso: Avoid highres update if clocksource is
 not VDSO capable



On 07/02/2020 12:39, Thomas Gleixner wrote:
> From: Thomas Gleixner <tglx@...utronix.de>
> 
> If the current clocksource is not VDSO capable there is no point in
> updating the high resolution parts of the VDSO data.
> 
> Replace the architecture specific check with a check for a VDSO capable
> clocksource and skip the update if there is none.
> 
> Signed-off-by: Thomas Gleixner <tglx@...utronix.de>


Reviewed-by: Vincenzo Frascino <vincenzo.frascino@....com>
Tested-by: Vincenzo Frascino <vincenzo.frascino@....com>

[...]

-- 
Regards,
Vincenzo

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