linux-kernel - Re: [tip:perf/core] perf: Add ability to attach user stack dump to sample

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Date:	Tue, 21 Aug 2012 19:11:56 +0200
From:	Peter Zijlstra <a.p.zijlstra@...llo.nl>
To:	mingo@...nel.org, eranian@...gle.com, acme@...hat.com,
	gorcunov@...nvz.org, benjamin.redelings@...cent.org,
	jolsa@...hat.com, fweisbec@...il.com, robert.richter@....com,
	drepper@...il.com, tglx@...utronix.de, cjashfor@...ux.vnet.ibm.com,
	asharma@...com, paulus@...ba.org, linux-kernel@...r.kernel.org,
	hpa@...or.com, fche@...hat.com, tzanussi@...il.com,
	masami.hiramatsu.pt@...achi.com, mingo@...e.hu
Cc:	linux-tip-commits@...r.kernel.org
Subject: Re: [tip:perf/core] perf: Add ability to attach user stack dump to
 sample

On Tue, 2012-08-21 at 08:49 -0700, tip-bot for Jiri Olsa wrote:
>  #define PERF_ATTR_SIZE_VER3    88      /* add: sample_regs_user */
> +#define PERF_ATTR_SIZE_VER4    96      /* add: sample_stack_user */

Both are introduced in this patch set, there's no release in between,
why are we doing two version increments? Seems like pointless version
space inflation to me.


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