linux-kernel - Re: [PATCH v2]: arch: arm64: vdso: export the symbols for time()

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Date:   Tue, 23 Jun 2020 17:57:24 +0100
From:   Will Deacon <will@...nel.org>
To:     Mark Salyzyn <salyzyn@...roid.com>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        Android Kernel Team <kernel-team@...roid.com>,
        Chiawei Wang <chiaweiwang@...gle.com>,
        Catalin Marinas <catalin.marinas@....com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Vincenzo Frascino <vincenzo.frascino@....com>,
        Enrico Weigelt <info@...ux.net>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Alexios Zavras <alexios.zavras@...el.com>,
        linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
        Allison Randal <allison@...utok.net>
Subject: Re: [PATCH v2]: arch: arm64: vdso: export the symbols for time()

On Tue, Jun 23, 2020 at 09:47:57AM -0700, Mark Salyzyn wrote:
>    time() in bionic libc will go an use vDSO interface to pick up this
>    low-resolution timer.

But my point is it should _already_ be using the vDSO implementation of
clock_gettime(), which should be plenty fast enough.

Will