linux-kernel - Re: [PATCH v2 09/11] powerpc/smp: Optimize update_mask_by

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Message-ID: <a52f0536059b795c0841c2ae0c65a607f2ce558a.camel@redhat.com>
Date:   Wed, 07 Oct 2020 10:23:03 -0400
From:   Qian Cai <cai@...hat.com>
To:     Srikar Dronamraju <srikar@...ux.vnet.ibm.com>
Cc:     Michael Ellerman <mpe@...erman.id.au>,
        Nathan Lynch <nathanl@...ux.ibm.com>,
        Gautham R Shenoy <ego@...ux.vnet.ibm.com>,
        Michael Neuling <mikey@...ling.org>,
        Peter Zijlstra <peterz@...radead.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Nicholas Piggin <npiggin@...il.com>,
        Valentin Schneider <valentin.schneider@....com>,
        Oliver O'Halloran <oohall@...il.com>,
        Satheesh Rajendran <sathnaga@...ux.vnet.ibm.com>,
        linuxppc-dev <linuxppc-dev@...ts.ozlabs.org>,
        Ingo Molnar <mingo@...nel.org>
Subject: Re: [PATCH v2 09/11] powerpc/smp: Optimize update_mask_by_l2

On Wed, 2020-10-07 at 19:47 +0530, Srikar Dronamraju wrote:
> Can you confirm if CONFIG_CPUMASK_OFFSTACK is enabled in your config?

Yes, https://gitlab.com/cailca/linux-mm/-/blob/master/powerpc.config

We tested here almost daily on linux-next.