linux-kernel - Re: [PATCH 2/3] perf/core: introduce pmu_event_flags and PMUEF_READ_CPU

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Date:	Thu, 4 Aug 2016 10:24:58 -0700
From:	David Carrillo-Cisneros <davidcc@...gle.com>
To:	Peter Zijlstra <peterz@...radead.org>
Cc:	linux-kernel <linux-kernel@...r.kernel.org>,
	"x86@...nel.org" <x86@...nel.org>, Ingo Molnar <mingo@...hat.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Andi Kleen <ak@...ux.intel.com>,
	Kan Liang <kan.liang@...el.com>, Paul Turner <pjt@...gle.com>,
	Stephane Eranian <eranian@...gle.com>
Subject: Re: [PATCH 2/3] perf/core: introduce pmu_event_flags and PMUEF_READ_CPU_PKG

>>       struct list_head                sb_list;
>> +
>> +     /* Per-event flags to generic code set by PMU. */
>> +     int                             pmu_event_flags;
>> +
>
> It appears to me we already have group_flags and attach_state which both
> are serialized by ctx->lock.
>
> Could we maybe merge the lot into one flags field?

Sounds good, I will do that.