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Date: Wed, 14 Jun 2017 21:50:42 +1000
From: Nicholas Piggin <npiggin@gmail.com>
To: Michael Ellerman <mpe@ellerman.id.au>
Cc: linuxppc-dev@lists.ozlabs.org, "Gautham R . Shenoy"
 <ego@linux.vnet.ibm.com>
Subject: Re: [PATCH 09/13] powerpc/64s: cpuidle set polling before enabling
 irqs
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 <20170613130557.26315-10-npiggin@gmail.com>
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On Wed, 14 Jun 2017 21:40:52 +1000
Michael Ellerman <mpe@ellerman.id.au> wrote:

> Nicholas Piggin <npiggin@gmail.com> writes:
> 
> > local_irq_enable can cause interrupts to be taken which could
> > take significant amount of processing time. The idle process
> > should set its polling flag before this, so another process that
> > wakes it during this time will not have to send an IPI.
> >
> > Expand the TIF_POLLING_NRFLAG coverage to as large as possible.
> >
> > Reviewed-by: Gautham R. Shenoy <ego@linux.vnet.ibm.com>
> > Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
> > ---
> >  drivers/cpuidle/cpuidle-powernv.c | 4 +++-
> >  drivers/cpuidle/cpuidle-pseries.c | 3 ++-
> >  2 files changed, 5 insertions(+), 2 deletions(-)  
> 
> I don't think the cpuidle folks are really interested in these changes,
> but we should Cc them to be polite.
> 
> Can you resend patches 9, 10, 11 with a subject like:
> 
>   "cpuidle: powernv: Set polling ..."
> 
> And Cc the cpuidle folks:
> 
> $ ./scripts/get_maintainer.pl -f drivers/cpuidle
> rjw@rjwysocki.net
> daniel.lezcano@linaro.org
> linux-pm@vger.kernel.org
> linux-kernel@vger.kernel.org

Yeah I can do that. I'll send them as thier own series. They don't
depend on any of the patches in this series, so I should have done
that in the first place.

Thanks,
Nick