linux-kernel - Re: [PATCH v2 4/9] perf affinity: Add infrastructure to save/restore affinity

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Message-ID: <20191023095911.GJ22919@krava>
Date:   Wed, 23 Oct 2019 11:59:11 +0200
From:   Jiri Olsa <jolsa@...hat.com>
To:     Andi Kleen <andi@...stfloor.org>
Cc:     acme@...nel.org, linux-kernel@...r.kernel.org, jolsa@...nel.org,
        eranian@...gle.com, kan.liang@...ux.intel.com,
        peterz@...radead.org, Andi Kleen <ak@...ux.intel.com>
Subject: Re: [PATCH v2 4/9] perf affinity: Add infrastructure to save/restore
 affinity

On Sun, Oct 20, 2019 at 10:51:57AM -0700, Andi Kleen wrote:

SNIP

> +}
> diff --git a/tools/perf/util/affinity.h b/tools/perf/util/affinity.h
> new file mode 100644
> index 000000000000..e56148607e33
> --- /dev/null
> +++ b/tools/perf/util/affinity.h
> @@ -0,0 +1,15 @@
> +// SPDX-License-Identifier: GPL-2.0
> +#ifndef AFFINITY_H
> +#define AFFINITY_H 1
> +
> +struct affinity {
> +	unsigned char *orig_cpus;
> +	unsigned char *sched_cpus;

why not use cpu_set_t directly?

jirka