From: Will Deacon <will@kernel.org>
To: Mark Salyzyn <salyzyn@android.com>
Cc: LKML <linux-kernel@vger.kernel.org>,
Android Kernel Team <kernel-team@android.com>,
Chiawei Wang <chiaweiwang@google.com>,
Catalin Marinas <catalin.marinas@arm.com>,
Thomas Gleixner <tglx@linutronix.de>,
Vincenzo Frascino <vincenzo.frascino@arm.com>,
Enrico Weigelt <info@metux.net>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Alexios Zavras <alexios.zavras@intel.com>,
linux-arm-kernel <linux-arm-kernel@lists.infradead.org>,
Allison Randal <allison@lohutok.net>
Subject: Re: [PATCH v2]: arch: arm64: vdso: export the symbols for time()
Date: Tue, 23 Jun 2020 17:57:24 +0100 [thread overview]
Message-ID: <20200623165723.GB4819@willie-the-truck> (raw)
In-Reply-To: <CAJ-C09j3ZZOZDPLiS+8-9Ypd1hYtfJY5LUym8z79xAUKS11VUA@mail.gmail.com>
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
WARNING: multiple messages have this Message-ID (diff)
From: Will Deacon <will@kernel.org>
To: Mark Salyzyn <salyzyn@android.com>
Cc: Enrico Weigelt <info@metux.net>,
Catalin Marinas <catalin.marinas@arm.com>,
Allison Randal <allison@lohutok.net>,
LKML <linux-kernel@vger.kernel.org>,
Alexios Zavras <alexios.zavras@intel.com>,
Chiawei Wang <chiaweiwang@google.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Thomas Gleixner <tglx@linutronix.de>,
Vincenzo Frascino <vincenzo.frascino@arm.com>,
Android Kernel Team <kernel-team@android.com>,
linux-arm-kernel <linux-arm-kernel@lists.infradead.org>
Subject: Re: [PATCH v2]: arch: arm64: vdso: export the symbols for time()
Date: Tue, 23 Jun 2020 17:57:24 +0100 [thread overview]
Message-ID: <20200623165723.GB4819@willie-the-truck> (raw)
In-Reply-To: <CAJ-C09j3ZZOZDPLiS+8-9Ypd1hYtfJY5LUym8z79xAUKS11VUA@mail.gmail.com>
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
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next prev parent reply other threads:[~2020-06-23 16:57 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-15 14:38 [PATCH v2]: arch: arm64: vdso: export the symbols for time() Mark Salyzyn
2020-06-15 14:38 ` Mark Salyzyn
2020-06-23 14:44 ` Will Deacon
2020-06-23 14:44 ` Will Deacon
[not found] ` <CAJ-C09j3ZZOZDPLiS+8-9Ypd1hYtfJY5LUym8z79xAUKS11VUA@mail.gmail.com>
2020-06-23 16:57 ` Will Deacon [this message]
2020-06-23 16:57 ` Will Deacon
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