linux-kernel - Re: [PATCH 4/6] perf kmem: Analyze page allocator events also

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Message-ID: <20150312110127.GD8369@krava.redhat.com>
Date:	Thu, 12 Mar 2015 12:01:27 +0100
From:	Jiri Olsa <jolsa@...hat.com>
To:	Namhyung Kim <namhyung@...nel.org>
Cc:	Arnaldo Carvalho de Melo <acme@...nel.org>,
	Ingo Molnar <mingo@...nel.org>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	LKML <linux-kernel@...r.kernel.org>,
	David Ahern <dsahern@...il.com>,
	Minchan Kim <minchan@...nel.org>,
	Joonsoo Kim <js1304@...il.com>
Subject: Re: [PATCH 4/6] perf kmem: Analyze page allocator events also

On Thu, Mar 12, 2015 at 04:32:49PM +0900, Namhyung Kim wrote:

SNIP

> +static int parse_slab_opt(const struct option *opt __maybe_unused,
> +			  const char *arg __maybe_unused,
> +			  int unset __maybe_unused)
> +{
> +	kmem_slab = (kmem_page + 1);
> +	return 0;
> +}
> +
> +static int parse_page_opt(const struct option *opt __maybe_unused,
> +			  const char *arg __maybe_unused,
> +			  int unset __maybe_unused)
> +{
> +	kmem_page = (kmem_slab + 1);
> +	return 0;
> +}

hum, just curious.. why not just assign 1, I'm missing the magic ;-)

thanks,
jirk
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