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Date: Sun, 17 Mar 2013 17:45:21 -0600
From: David Ahern <dsahern@gmail.com>
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To: chenggang <chenggang.qin@gmail.com>
CC: linux-kernel@vger.kernel.org, chenggang <chenggang.qcg@taobao.com>,
        Peter Zijlstra <a.p.zijlstra@chello.nl>,
        Paul Mackerras <paulus@samba.org>, Ingo Molnar <mingo@redhat.com>,
        Arnaldo Carvalho de Melo <acme@ghostprotocols.net>,
        Arjan van de Ven <arjan@linux.intel.com>,
        Namhyung Kim <namhyung@gmail.com>,
        Yanmin Zhang <yanmin.zhang@intel.com>,
        Wu Fengguang <fengguang.wu@intel.com>, Mike Galbraith <efault@gmx.de>,
        Andrew Morton <akpm@linux-foundation.org>
Subject: Re: [PATCH v3 4/8]perf: Transform evsel->id to xyarray
References: <1363167740-27735-1-git-send-email-chenggang.qin@gmail.com> <1363167740-27735-5-git-send-email-chenggang.qin@gmail.com>
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On 3/13/13 3:42 AM, chenggang wrote:

>   tools/perf/util/evlist.c |    4 +++-
>   tools/perf/util/evsel.c  |   19 +++++++++++++++++--
>   tools/perf/util/evsel.h  |    5 ++++-
>   tools/perf/util/header.c |   28 ++++++++++++++++++----------
>   tools/perf/util/header.h |    3 ++-
>   5 files changed, 44 insertions(+), 15 deletions(-)

Same comment here too -- small patches the move one reference at a time 
and then a final one that flips the implementation.

David