linux-kernel - Re: [PATCH 02/17] perf hists: Resort hist entries with hierarchy

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Date:	Thu, 21 Jan 2016 12:41:49 +0100
From:	Jiri Olsa <jolsa@...hat.com>
To:	Namhyung Kim <namhyung@...nel.org>
Cc:	Arnaldo Carvalho de Melo <acme@...nel.org>,
	Ingo Molnar <mingo@...nel.org>,
	Peter Zijlstra <peterz@...radead.org>,
	Jiri Olsa <jolsa@...nel.org>,
	LKML <linux-kernel@...r.kernel.org>,
	David Ahern <dsahern@...il.com>,
	Stephane Eranian <eranian@...gle.com>,
	Andi Kleen <andi@...stfloor.org>,
	Wang Nan <wangnan0@...wei.com>
Subject: Re: [PATCH 02/17] perf hists: Resort hist entries with hierarchy

On Sun, Jan 17, 2016 at 01:03:02AM +0900, Namhyung Kim wrote:

SNIP

> +					     min_callchain_hits,
> +					     &callchain_param);
> +	}
> +}
> +
>  static void __hists__insert_output_entry(struct rb_root *entries,
>  					 struct hist_entry *he,
>  					 u64 min_callchain_hits,
> @@ -1288,6 +1356,17 @@ void hists__output_resort(struct hists *hists, struct ui_progress *prog)
>  
>  	min_callchain_hits = hists->stats.total_period * (callchain_param.min_percent / 100);
>  
> +	hists__reset_stats(hists);
> +	hists__reset_col_len(hists);
> +
> +	if (symbol_conf.report_hierarchy) {
> +		return hists__hierarchy_output_resort(hists, prog,
> +						      &hists->entries_collapsed,

is the 'in-root' always hists->entries_collapsed in here?

should you use the 'root' var from the condition below?

thanks,
jirka

> +						      &hists->entries,
> +						      min_callchain_hits,
> +						      use_callchain);
> +	}
> +
>  	if (sort__need_collapse)
>  		root = &hists->entries_collapsed;
>  	else
> @@ -1296,9 +1375,6 @@ void hists__output_resort(struct hists *hists, struct ui_progress *prog)
>  	next = rb_first(root);
>  	hists->entries = RB_ROOT;
>  
> -	hists__reset_stats(hists);
> -	hists__reset_col_len(hists);
> -
>  	while (next) {
>  		n = rb_entry(next, struct hist_entry, rb_node_in);
>  		next = rb_next(&n->rb_node_in);
> -- 
> 2.6.4
>