From: Huw Davies <huw@codeweavers.com>
To: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Thomas Gleixner <tglx@linutronix.de>,
linux kernel <linux-kernel@vger.kernel.org>,
Andy Lutomirski <luto@kernel.org>
Subject: Re: [PATCH 2/3] x86/vdso: Allow clock specific mult and shift values
Date: Mon, 15 Apr 2019 13:14:32 +0100 [thread overview]
Message-ID: <20190415121431.GA22003@merlot.physics.ox.ac.uk> (raw)
In-Reply-To: <82a61daf-f6f9-8be0-2157-e9f9d7ba1cdf@arm.com>
On Mon, Apr 15, 2019 at 11:15:56AM +0100, Vincenzo Frascino wrote:
> On 15/04/2019 10:51, Thomas Gleixner wrote:
> > On Mon, 15 Apr 2019, Huw Davies wrote:
> >> On Sun, Apr 14, 2019 at 12:53:32PM +0200, Thomas Gleixner wrote:
> >>> See https://lkml.kernel.org/r/alpine.DEB.2.21.1902231727060.1666@nanos.tec.linutronix.de
> >>> for an alternate solution to this problem, which avoids this and just gives
> >>> CLOCK_MONOTONIC_RAW a separate storage space alltogether.
> >>
> >> I can certainly do this for the x86 vdso. Would that be useful or
> >> should I wait for Vincenzo's work on the generic vdso first?
> >
> > Depends. If Vincenzo comes along with his new version soon, then you might
> > get this for free :)
> >
> > Vincenzo, what's the state of your work?
> >
>
> I am mostly done with the development, the only thing missing is the integration
> of the generic update_vsyscall. After this is complete, I will need to do some
> testing and extract the performance numbers.
>
> Considering that I will be on Easter holiday from this Wednesday till the end of
> April, I think v6 will be ready around second week of May.
Hi Vincenzo,
Great! In which case there's not much point in me changing the x86
vdso---it'll just end up making more work for you.
Let me know if there's anything I can help with.
Huw.
next prev parent reply other threads:[~2019-04-15 12:14 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-04-11 10:12 [PATCH 0/3] x86/vdso: Add support for CLOCK_MONOTONIC_RAW in the vDSO Huw Davies
2019-04-11 10:12 ` [PATCH 1/3] x86/vdso: Remove unused 'mask' member Huw Davies
2019-04-14 10:36 ` Thomas Gleixner
2019-04-11 10:12 ` [PATCH 2/3] x86/vdso: Allow clock specific mult and shift values Huw Davies
2019-04-14 10:53 ` Thomas Gleixner
2019-04-15 9:30 ` Huw Davies
2019-04-15 9:51 ` Thomas Gleixner
2019-04-15 10:15 ` Vincenzo Frascino
2019-04-15 12:14 ` Huw Davies [this message]
2019-05-30 14:21 ` Vincenzo Frascino
2019-04-11 10:12 ` [PATCH 3/3] x86/vdso: Add support for CLOCK_MONOTONIC_RAW in the vDSO Huw Davies
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