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From: Andi Kleen <ak@linux.intel.com>
To: Tvrtko Ursulin <tursulin@ursulin.net>
Cc: linux-kernel@vger.kernel.org, tvrtko.ursulin@linux.intel.com,
	Tvrtko Ursulin <tvrtko.ursulin@intel.com>,
	Thomas Gleixner <tglx@linutronix.de>,
	Peter Zijlstra <peterz@infradead.org>,
	Ingo Molnar <mingo@redhat.com>, "H. Peter Anvin" <hpa@zytor.com>,
	Arnaldo Carvalho de Melo <acme@kernel.org>,
	Alexander Shishkin <alexander.shishkin@linux.intel.com>,
	Jiri Olsa <jolsa@redhat.com>, Namhyung Kim <namhyung@kernel.org>,
	Madhavan Srinivasan <maddy@linux.vnet.ibm.com>,
	Alexey Budankov <alexey.budankov@linux.intel.com>,
	x86@kernel.org
Subject: Re: [RFC 3/5] perf: Allow per PMU access control
Date: Thu, 27 Sep 2018 13:15:59 -0700	[thread overview]
Message-ID: <20180927201559.GH28040@tassilo.jf.intel.com> (raw)
In-Reply-To: <20180919122751.12439-4-tvrtko.ursulin@linux.intel.com>

> +	mutex_lock(&pmus_lock);
> +	list_for_each_entry(pmu, &pmus, entry)
> +		pmu->perf_event_paranoid = sysctl_perf_event_paranoid;
> +	mutex_unlock(&pmus_lock);

What happens to pmus that got added later?

The rest looks good.

Can you post a non RFC version?

-Andi

  reply	other threads:[~2018-09-27 20:16 UTC|newest]

Thread overview: 38+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-09-19 12:27 [RFC 0/5] perf: Per PMU access controls (paranoid setting) Tvrtko Ursulin
2018-09-19 12:27 ` [RFC 1/5] perf: Move some access checks later in perf_event_open Tvrtko Ursulin
2018-09-19 12:27 ` [RFC 2/5] perf: Pass pmu pointer to perf_paranoid_* helpers Tvrtko Ursulin
2018-09-19 12:27 ` [RFC 3/5] perf: Allow per PMU access control Tvrtko Ursulin
2018-09-27 20:15   ` Andi Kleen [this message]
2018-09-28  8:57     ` Tvrtko Ursulin
2018-09-19 12:27 ` [RFC 4/5] perf Documentation: Document the per PMU perf_event_paranoid interface Tvrtko Ursulin
2018-09-19 12:27 ` [RFC 5/5] tools/perf: Add support for per-PMU access control Tvrtko Ursulin
2018-09-28 10:26 ` [RFC 0/5] perf: Per PMU access controls (paranoid setting) Thomas Gleixner
2018-09-28 13:22   ` Tvrtko Ursulin
2018-09-28 14:02     ` Thomas Gleixner
2018-09-28 14:56       ` Tvrtko Ursulin
2018-09-28 15:23         ` Thomas Gleixner
2018-09-28 15:45       ` Alexey Budankov
2018-09-28 18:20         ` Thomas Gleixner
2018-09-28 20:45           ` Andi Kleen
2018-09-29  6:19             ` Thomas Gleixner
2018-10-01  6:25           ` Alexey Budankov
2018-09-28 15:12     ` Jann Horn
2018-09-28 22:02       ` Jann Horn
2018-10-01  6:27         ` Alexey Budankov
2018-09-28 16:41   ` Mark Rutland
2018-09-28 17:23     ` Andi Kleen
2018-09-28 17:40       ` Mark Rutland
2018-09-28 20:49         ` Andi Kleen
2018-09-28 20:54           ` Jann Horn
2018-09-28 20:59             ` Andi Kleen
2018-09-28 21:22               ` Jann Horn
2018-09-28 21:27                 ` Andi Kleen
2018-10-01  6:25                   ` Alexey Budankov
2018-10-01 16:11                     ` Thomas Gleixner
2018-10-01 16:15                       ` Jann Horn
2018-10-01 20:51                       ` Alexey Budankov
2018-10-02  6:40                         ` Thomas Gleixner
2018-10-02 11:44                           ` Alexey Budankov
2018-10-03 17:01                         ` Jann Horn
2018-10-04 17:11                           ` Alexey Budankov
2018-09-29  6:30               ` Thomas Gleixner

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