linux-kernel - Re: [PATCH v1 2/2] perf tools: add attr->mmap2 support

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Message-ID: <20130813233449.GK23412@tassilo.jf.intel.com>
Date:	Tue, 13 Aug 2013 16:34:49 -0700
From:	Andi Kleen <ak@...ux.intel.com>
To:	Stephane Eranian <eranian@...gle.com>
Cc:	linux-kernel@...r.kernel.org, peterz@...radead.org, mingo@...e.hu,
	acme@...hat.com, jolsa@...hat.com, namhyung.kim@....com,
	dsahern@...il.com
Subject: Re: [PATCH v1 2/2] perf tools: add attr->mmap2 support

On Tue, Aug 13, 2013 at 01:55:57PM +0200, Stephane Eranian wrote:
> This patch adds support for the new PERF_RECORD_MMAP2
> record type exposed by the kernel. This is an extended
> PERF_RECORD_MMAP record. It adds for each file-backed
> mapping the device major, minor number and the inode
> number. This triplet uniquely identifies the source
> of a file-backed mapping. It can be used to detect
> identical virtual mappings between processes for instance.

Can you also add the generation number please?
That would make it even more unique.

-Andi
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