linux-kernel - Re: [PATCH v2 15/20] s390: perf/events: advertise PMU exclusion capability

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Message-Id: <20181127081945.GA4817@linux.ibm.com>
Date:   Tue, 27 Nov 2018 09:19:45 +0100
From:   Hendrik Brueckner <brueckner@...ux.ibm.com>
To:     Andrew Murray <andrew.murray@....com>
Cc:     Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...hat.com>,
        Arnaldo Carvalho de Melo <acme@...nel.org>,
        Shawn Guo <shawnguo@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Will Deacon <will.deacon@....com>,
        Mark Rutland <mark.rutland@....com>,
        Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Borislav Petkov <bp@...en8.de>, x86@...nel.org,
        Ralf Baechle <ralf@...ux-mips.org>,
        Paul Burton <paul.burton@...s.com>,
        James Hogan <jhogan@...nel.org>,
        Martin Schwidefsky <schwidefsky@...ibm.com>,
        Heiko Carstens <heiko.carstens@...ibm.com>,
        "David S . Miller" <davem@...emloft.net>,
        sparclinux@...r.kernel.org, Michael Ellerman <mpe@...erman.id.au>,
        linux-s390@...r.kernel.org, linux-mips@...ux-mips.org,
        linuxppc-dev@...ts.ozlabs.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-alpha@...r.kernel.org
Subject: Re: [PATCH v2 15/20] s390: perf/events: advertise PMU exclusion
 capability

On Mon, Nov 26, 2018 at 11:12:31AM +0000, Andrew Murray wrote:
> The s390 cpum_cf and cpum_sf PMUs have the capability to exclude
> events based on context. Let's advertise that we support the
> PERF_PMU_CAP_EXCLUDE capability to ensure that perf doesn't
> prevent us from handling events where any exclusion flags are set.
> 
> Signed-off-by: Andrew Murray <andrew.murray@....com>
> ---
>  arch/s390/kernel/perf_cpum_cf.c | 1 +
>  arch/s390/kernel/perf_cpum_sf.c | 2 ++
>  2 files changed, 3 insertions(+)

Reviewed-by: Hendrik Brueckner <brueckner@...ux.ibm.com>