From: Michael Ellerman <mpe@ellerman.id.au>
To: "Rafael J. Wysocki" <rafael@kernel.org>,
Michael Ellerman <patch-notifications@ellerman.id.au>
Cc: Nicholas Piggin <npiggin@gmail.com>,
linuxppc-dev <linuxppc-dev@lists.ozlabs.org>,
"Gautham R . Shenoy" <ego@linux.vnet.ibm.com>,
Linux PM <linux-pm@vger.kernel.org>,
Daniel Lezcano <daniel.lezcano@linaro.org>,
"Rafael J . Wysocki" <rjw@rjwysocki.net>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: [1/3] cpuidle: powerpc: cpuidle set polling before enabling irqs
Date: Fri, 30 Jun 2017 13:45:09 +1000 [thread overview]
Message-ID: <878tkaqgu2.fsf@concordia.ellerman.id.au> (raw)
In-Reply-To: <CAJZ5v0g2DMRcL78k2+qA0svxGqtt-sTW2BpcfvRjU-=iCBjEYg@mail.gmail.com>
"Rafael J. Wysocki" <rafael@kernel.org> writes:
> On Thu, Jun 29, 2017 at 2:21 PM, Michael Ellerman
> <patch-notifications@ellerman.id.au> wrote:
>> On Wed, 2017-06-14 at 13:02:39 UTC, Nicholas Piggin wrote:
>>> 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>
>>
>> Series applied to powerpc next, thanks.
>>
>> https://git.kernel.org/powerpc/c/3fc5ee927ff4ffed6aa2fcd44d2fbf
>
> OK
>
> I've applied it too, so I guess I should drop it?
Erk sorry. I hadn't heard anything so I picked it up.
If you can drop it that would be good, but if not git will probably work
it out mostly :)
cheers
next prev parent reply other threads:[~2017-06-30 3:45 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-06-14 13:02 [PATCH 0/3] powerpc (powernv and pseries) cpuidle driver improvmeents Nicholas Piggin
2017-06-14 13:02 ` [PATCH 1/3] cpuidle: powerpc: cpuidle set polling before enabling irqs Nicholas Piggin
2017-06-29 12:21 ` [1/3] " Michael Ellerman
2017-06-29 20:38 ` Rafael J. Wysocki
2017-06-30 3:45 ` Michael Ellerman [this message]
2017-06-30 12:51 ` Rafael J. Wysocki
2017-07-04 2:59 ` Michael Ellerman
2017-06-14 13:02 ` [PATCH 2/3] cpuidle: powerpc: read mostly for common globals Nicholas Piggin
2017-06-14 13:02 ` [PATCH 3/3] cpuidle: powerpc: no memory barrier after break from idle Nicholas Piggin
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