linux-kernel - Re: [PATCH v2 2/2] perf tools: add attr->mmap2 support

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Message-ID: <CABPqkBQUqNX4W8UVzbJ6sB=JVbMY=ZJgYbRLRHX3DnvCz6SOsw@mail.gmail.com>
Date:	Fri, 30 Aug 2013 16:03:26 +0200
From:	Stephane Eranian <eranian@...gle.com>
To:	Peter Zijlstra <peterz@...radead.org>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	"mingo@...e.hu" <mingo@...e.hu>,
	"ak@...ux.intel.com" <ak@...ux.intel.com>,
	Arnaldo Carvalho de Melo <acme@...hat.com>,
	Jiri Olsa <jolsa@...hat.com>,
	Namhyung Kim <namhyung.kim@....com>,
	David Ahern <dsahern@...il.com>
Subject: Re: [PATCH v2 2/2] perf tools: add attr->mmap2 support

Hi,

I realized I have forgotten to patch builtin-inject.c to repipe mmap2 records.
Will resubmit V3.


On Thu, Aug 22, 2013 at 12:51 PM, Peter Zijlstra <peterz@...radead.org> wrote:
> On Wed, Aug 21, 2013 at 12:10:25PM +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 and generation. This triplet uniquely identifies
>> the source of a file-backed mapping. It can be used to
>> detect identical virtual mappings between processes, for
>> instance.
>>
>> The patch will prefer MMAP2 over MMAP.
>>
>> Signed-off-by: Stephane Eranian <eranian@...gle.com>
>
> Acme, ACK?
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