Re: task isolation discussion at Linux Plumbers

From	Will Deacon <will.deacon@arm.com>
Newsgroups	linux.kernel
Subject	Re: task isolation discussion at Linux Plumbers
Date	2016-11-07 20:20 +0100
Message-ID	<sAXCx-7rh-13@gated-at.bofh.it> (permalink)
References	<s6U5P-8nJ-3@gated-at.bofh.it> <sAbHz-1Cs-7@gated-at.bofh.it> <sAVr3-5FZ-25@gated-at.bofh.it> <sAX9w-71s-15@gated-at.bofh.it> <sAXCx-7rh-15@gated-at.bofh.it>
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On Mon, Nov 07, 2016 at 02:12:13PM -0500, Rik van Riel wrote:
> On Mon, 2016-11-07 at 19:36 +0100, Thomas Gleixner wrote:
> > On Mon, 7 Nov 2016, Thomas Gleixner wrote:
> > > 
> > > > 
> > > > == Missing oneshot_stopped callbacks ==
> > > > 
> > > > I raised the issue that various clock_event_device sources don't
> > > > always support oneshot_stopped, which can cause an additional
> > > > final interrupt to occur after the timer infrastructure believes
> > > > the
> > > > interrupt has been stopped.  I have patches to fix this for tile
> > > > and
> > > > arm64 in my patch series; Thomas volunteered to look at adding
> > > > equivalent support for x86.
> > > 
> > > Right.
> > 
> > Untested patch below should fix that.
> > 
> 
> That whitespace cleanup looks awesome, but I am not
> optimistic about its chances to bring about functional
> change.
> 
> What am I overlooking?

It hooks up .set_state_oneshot_stopped?

Will

Thread

Re: task isolation discussion at Linux Plumbers Thomas Gleixner <tglx@linutronix.de> - 2016-11-07 18:00 +0100
  Re: task isolation discussion at Linux Plumbers Thomas Gleixner <tglx@linutronix.de> - 2016-11-07 19:50 +0100
    Re: task isolation discussion at Linux Plumbers Rik van Riel <riel@redhat.com> - 2016-11-07 20:20 +0100
    Re: task isolation discussion at Linux Plumbers Will Deacon <will.deacon@arm.com> - 2016-11-07 20:20 +0100
    Re: task isolation discussion at Linux Plumbers Rik van Riel <riel@redhat.com> - 2016-11-07 20:30 +0100

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