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Message-ID: <20160217162810.GA2694@codeblueprint.co.uk>
Date: Wed, 17 Feb 2016 16:28:10 +0000
From: Matt Fleming <matt@...eblueprint.co.uk>
To: Thomas Gleixner <tglx@...utronix.de>
Cc: LKML <linux-kernel@...r.kernel.org>,
Peter Zijlstra <peterz@...radead.org>, x86@...nel.org,
Stephane Eranian <eranian@...gle.com>,
Vikas Shivappa <vikas.shivappa@...el.com>
Subject: Re: [PATCH] x86/perf/intel/cqm: Get rid of the silly for_each_cpu
lookups
On Wed, 17 Feb, at 05:08:57PM, Thomas Gleixner wrote:
> On Wed, 17 Feb 2016, Thomas Gleixner wrote:
>
> > CQM is a strict per package facility. Use the proper cpumasks to lookup the
> > readers.
>
> Sorry for the noise. PEBKAC: quilt refresh missing. Correct version below.
>
> Thanks,
>
> tglx
>
> 8<----------
>
> Subject: x86/perf/cqm: Get rid of the silly for_each_cpu lookups
> From: Thomas Gleixner <tglx@...utronix.de>
> Date: Sun, 14 Feb 2016 23:09:06 +0100
>
> CQM is a strict per package facility. Use the proper cpumasks to lookup the
> readers.
>
> Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
> ---
> arch/x86/kernel/cpu/perf_event_intel_cqm.c | 34 ++++++++++-------------------
> 1 file changed, 12 insertions(+), 22 deletions(-)
Right, I just could not make the connection between
topology_core_cpumask() and topology_physical_package_id() when I
wrote this code.
Reviewed-by: Matt Fleming <matt@...eblueprint.co.uk>
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