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Message-ID: <YNXGzWDUb2rbUhEr@hirez.programming.kicks-ass.net>
Date: Fri, 25 Jun 2021 14:06:37 +0200
From: Peter Zijlstra <peterz@...radead.org>
To: Adrian Hunter <adrian.hunter@...el.com>
Cc: Ingo Molnar <mingo@...hat.com>,
Arnaldo Carvalho de Melo <acme@...nel.org>,
Mark Rutland <mark.rutland@....com>,
Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
Jiri Olsa <jolsa@...hat.com>, Leo Yan <leo.yan@...aro.org>,
Kan Liang <kan.liang@...ux.intel.com>, x86@...nel.org,
linux-perf-users@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/3] perf/x86: Add new event for AUX output counter index
On Wed, Jun 09, 2021 at 05:20:53PM +0300, Adrian Hunter wrote:
> diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h
> index f5a6a2f069ed..18bfa05537ab 100644
> --- a/include/linux/perf_event.h
> +++ b/include/linux/perf_event.h
> @@ -141,6 +141,7 @@ struct hw_perf_event {
> unsigned long event_base;
> int event_base_rdpmc;
> int idx;
> + int idx_reported;
> int last_cpu;
> int flags;
>
This is sad, it blows up the largest element in that union from 96 to
104 bytes.
Is there really no better place for this?
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