perf hists browser: Put hist_entry folding logic into single function

It will be used in following patch to expand or collapse only the
current browser entry.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1484904032-11040-2-git-send-email-jolsa@kernel.orgSigned-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

tools/perf/ui/browsers/hists.c

@@ -501,7 +501,7 @@ static int hierarchy_set_folding(struct hist_browser *hb, struct hist_entry *he,
 	return n;
 }
 
-static void hist_entry__set_folding(struct hist_entry *he,
+static void __hist_entry__set_folding(struct hist_entry *he,
 				      struct hist_browser *hb, bool unfold)
 {
 	hist_entry__init_have_children(he);
@@ -520,25 +520,16 @@ static void hist_entry__set_folding(struct hist_entry *he,
 		he->nr_rows = 0;
 }
 
-static void
-__hist_browser__set_folding(struct hist_browser *browser, bool unfold)
+static void hist_entry__set_folding(struct hist_entry *he,
+				    struct hist_browser *browser, bool unfold)
 {
-	struct rb_node *nd;
-	struct hist_entry *he;
 	double percent;
 
-	nd = rb_first(&browser->hists->entries);
-	while (nd) {
-		he = rb_entry(nd, struct hist_entry, rb_node);
-
-		/* set folding state even if it's currently folded */
-		nd = __rb_hierarchy_next(nd, HMD_FORCE_CHILD);
-
-		hist_entry__set_folding(he, browser, unfold);
-
 	percent = hist_entry__get_percent_limit(he);
 	if (he->filtered || percent < browser->min_pcnt)
-			continue;
+		return;
+
+	__hist_entry__set_folding(he, browser, unfold);
 
 	if (!he->depth || unfold)
 		browser->nr_hierarchy_entries++;
@@ -550,6 +541,22 @@ __hist_browser__set_folding(struct hist_browser *browser, bool unfold)
 		he->nr_rows = 1;
 	} else
 		he->has_no_entry = false;
+}
+
+static void
+__hist_browser__set_folding(struct hist_browser *browser, bool unfold)
+{
+	struct rb_node *nd;
+	struct hist_entry *he;
+
+	nd = rb_first(&browser->hists->entries);
+	while (nd) {
+		he = rb_entry(nd, struct hist_entry, rb_node);
+
+		/* set folding state even if it's currently folded */
+		nd = __rb_hierarchy_next(nd, HMD_FORCE_CHILD);
+
+		hist_entry__set_folding(he, browser, unfold);
 	}
 }