linux-kernel - Re: [PATCH 2/2] perf: Add a new sort order: SORT

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Date:	Thu, 8 Mar 2012 08:22:58 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	Arun Sharma <asharma@...com>
Cc:	linux-kernel@...r.kernel.org,
	Arnaldo Carvalho de Melo <acme@...hat.com>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Mike Galbraith <efault@....de>,
	Paul Mackerras <paulus@...ba.org>,
	Peter Zijlstra <peterz@...radead.org>,
	Stephane Eranian <eranian@...gle.com>,
	Namhyung Kim <namhyung.kim@....com>,
	Tom Zanussi <tzanussi@...il.com>,
	linux-perf-users@...r.kernel.org
Subject: Re: [PATCH 2/2] perf: Add a new sort order: SORT_INCLUSIVE


* Arun Sharma <asharma@...com> wrote:

> @@ -71,8 +71,12 @@ static int perf_evsel__add_hist_entry(struct perf_evsel *evsel,
>  	}
>  
>  	cursor = &evsel->hists.callchain_cursor;
> -	he = __hists__add_entry_single(&evsel->hists, al, parent,
> -				       cursor, sample->period);
> +	if (sort__first_dimension == SORT_INCLUSIVE)
> +		he = __hists__add_entry_inclusive(&evsel->hists, al, parent,
> +						  cursor, sample->period);
> +	else
> +		he = __hists__add_entry_single(&evsel->hists, al, parent,
> +					       cursor, sample->period);

If sort__first_dimension is available to hist.c then I think 
there should still be a simple __hists__add_entry() function in 
hist.c, which perf_evsel__add_hist_entry() calls - which then 
calls the static inline __hists__add_entry_inclusive() and 
__hists__add_entry_single() functions within hist.c.

I.e. this refactoring and splitup of the function into two parts 
is not a detail that should matter to builtin-report.c's 
perf_evsel__add_hist_entry().

Thanks,

	Ingo
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