[1/3] cpuidle: powerpc: cpuidle set polling before enabling irqs

Michael Ellerman mpe at ellerman.id.au
Tue Jul 4 12:59:01 AEST 2017

"Rafael J. Wysocki" <rafael at kernel.org> writes:

> On Fri, Jun 30, 2017 at 5:45 AM, Michael Ellerman <mpe at ellerman.id.au> wrote:
>> "Rafael J. Wysocki" <rafael at kernel.org> writes:
>>> On Thu, Jun 29, 2017 at 2:21 PM, Michael Ellerman
>>> <patch-notifications at 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 at linux.vnet.ibm.com>
>>>>> Signed-off-by: Nicholas Piggin <npiggin at 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 :)
> I've dropped it, no problem.



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