linux-kernel - Re: [PATCH v1 1/2] perf: add attr->mmap2 attribute to an event

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Message-ID: <20130815102620.GN24092@twins.programming.kicks-ass.net>
Date:	Thu, 15 Aug 2013 12:26:20 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	Stephane Eranian <eranian@...gle.com>
Cc:	linux-kernel@...r.kernel.org, mingo@...e.hu, ak@...ux.intel.com,
	acme@...hat.com, jolsa@...hat.com, namhyung.kim@....com,
	dsahern@...il.com
Subject: Re: [PATCH v1 1/2] perf: add attr->mmap2 attribute to an event

On Tue, Aug 13, 2013 at 01:55:56PM +0200, Stephane Eranian wrote:

> @@ -638,6 +639,25 @@ enum perf_event_type {
>  	 */
>  	PERF_RECORD_SAMPLE			= 9,
>  
> +	/*
> +	 * The MMAP2 records are an augmented version of MMAP, they add
> +	 * maj, min, ino numbers to be used to uniquely identify each mapping
> +	 *
> +	 * struct {
> +	 *	struct perf_event_header	header;
> +	 *
> +	 *	u32				pid, tid;
> +	 *	u64				addr;
> +	 *	u64				len;
> +	 *	u64				pgoff;
> +	 *	u32				maj;
> +	 *	u32				min;
> +	 *	u64				ino;
> +	 *	char				filename[];

Did you forget the sample_id stuff?

		struct sample_id		sample_id;

> +	 * };
> +	 */
> +	PERF_RECORD_MMAP2			= 10,
> +
>  	PERF_RECORD_MAX,			/* non-ABI */
>  };
--
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