linux-kernel - Re: [PATCH v2 3/8] perf tools: Use own hpp

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Message-ID: <20160307124201.GB22896@danjae.kornet>
Date:	Mon, 7 Mar 2016 21:42:01 +0900
From:	Namhyung Kim <namhyung@...nel.org>
To:	Jiri Olsa <jolsa@...hat.com>
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>,
	Andi Kleen <andi@...stfloor.org>,
	Stephane Eranian <eranian@...gle.com>,
	Wang Nan <wangnan0@...wei.com>
Subject: Re: [PATCH v2 3/8] perf tools: Use own hpp_list for hierarchy mode

Hi Jiri,

On Sat, Mar 05, 2016 at 07:17:22PM +0100, Jiri Olsa wrote:
> On Fri, Mar 04, 2016 at 11:59:37PM +0900, Namhyung Kim wrote:
> 
> SNIP
> 
> > @@ -1150,20 +1159,29 @@ static int hists__hierarchy_insert_entry(struct hists *hists,
> >  					 struct hist_entry *he)
> >  {
> >  	struct perf_hpp_fmt *fmt;
> > +	struct perf_hpp_list_node *node;
> >  	struct hist_entry *new_he = NULL;
> >  	struct hist_entry *parent = NULL;
> >  	int depth = 0;
> >  	int ret = 0;
> >  
> > -	hists__for_each_sort_list(hists, fmt) {
> > -		if (!perf_hpp__is_sort_entry(fmt) &&
> > -		    !perf_hpp__is_dynamic_entry(fmt))
> > -			continue;
> > -		if (perf_hpp__should_skip(fmt, hists))
> > +	list_for_each_entry(node, &hists->hpp_formats, list) {
> > +		bool skip = false;
> > +
> > +		perf_hpp_list__for_each_sort_list(&node->hpp, fmt) {
> > +			if (!perf_hpp__is_sort_entry(fmt) &&
> > +			    !perf_hpp__is_dynamic_entry(fmt))
> > +				skip = true;
> > +			if (perf_hpp__should_skip(fmt, hists))
> > +				skip = true;
> > +			if (skip)
> > +				break;
> 
> could we add skip bool into node and initialize it gradually in add_hierarchy_fmt?

Right.

We can simply skip the node if all fmts it contains should be skipped.

Thanks,
Namhyung