linux-kernel - Re: [1/3] cpuidle: powerpc: cpuidle set polling before enabling irqs

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Message-Id: <3wyzKL1g2Vz9s65@ozlabs.org>
Date:   Thu, 29 Jun 2017 22:21:10 +1000 (AEST)
From:   Michael Ellerman <patch-notifications@...erman.id.au>
To:     Nicholas Piggin <npiggin@...il.com>, linuxppc-dev@...ts.ozlabs.org
Cc:     "Gautham R . Shenoy" <ego@...ux.vnet.ibm.com>,
        linux-pm@...r.kernel.org,
        Daniel Lezcano <daniel.lezcano@...aro.org>,
        "Rafael J . Wysocki" <rjw@...ysocki.net>,
        linux-kernel@...r.kernel.org, Nicholas Piggin <npiggin@...il.com>
Subject: Re: [1/3] cpuidle: powerpc: cpuidle set polling before enabling irqs

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@...ux.vnet.ibm.com>
> Signed-off-by: Nicholas Piggin <npiggin@...il.com>

Series applied to powerpc next, thanks.

https://git.kernel.org/powerpc/c/3fc5ee927ff4ffed6aa2fcd44d2fbf

cheers