[tip:perf/core] perf hists browser: Pass parent_total to callchain print functions

[tip-bot for Namhyung Kim]

Commit-ID:  5eca104eee7edfe7155523849750ced539b16e94
Gitweb:     http://git.kernel.org/tip/5eca104eee7edfe7155523849750ced539b16e94
Author:     Namhyung Kim <namhyung@xxxxxxxxxx>
AuthorDate: Thu, 28 Jan 2016 00:40:55 +0900
Committer:  Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
CommitDate: Mon, 1 Feb 2016 17:45:42 -0300

perf hists browser: Pass parent_total to callchain print functions

Pass parent node's total period to callchain print functions.  This info
is needed by later patch to determine whether it can omit percent or not
correctly.

No functional change intended.

Signed-off-by: Namhyung Kim <namhyung@xxxxxxxxxx>
Cc: Andi Kleen <andi@xxxxxxxxxxxxxx>
Cc: David Ahern <dsahern@xxxxxxxxx>
Cc: Frederic Weisbecker <fweisbec@xxxxxxxxx>
Cc: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Wang Nan <wangnan0@xxxxxxxxxx>
Link: http://lkml.kernel.org/r/1453909257-26015-9-git-send-email-namhyung@xxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
 tools/perf/ui/browsers/hists.c | 44 +++++++++++++++++++++++-------------------
 1 file changed, 24 insertions(+), 20 deletions(-)

diff --git a/tools/perf/ui/browsers/hists.c b/tools/perf/ui/browsers/hists.c
index 6b22baf..41dbb79 100644
--- a/tools/perf/ui/browsers/hists.c
+++ b/tools/perf/ui/browsers/hists.c
@@ -660,6 +660,7 @@ static int hist_browser__show_callchain_list(struct hist_browser *browser,
 static int hist_browser__show_callchain_flat(struct hist_browser *browser,
 					     struct rb_root *root,
 					     unsigned short row, u64 total,
+					     u64 parent_total __maybe_unused,
 					     print_callchain_entry_fn print,
 					     struct callchain_print_arg *arg,
 					     check_output_full_fn is_output_full)
@@ -763,6 +764,7 @@ static char *hist_browser__folded_callchain_str(struct hist_browser *browser,
 static int hist_browser__show_callchain_folded(struct hist_browser *browser,
 					       struct rb_root *root,
 					       unsigned short row, u64 total,
+					       u64 parent_total __maybe_unused,
 					       print_callchain_entry_fn print,
 					       struct callchain_print_arg *arg,
 					       check_output_full_fn is_output_full)
@@ -847,14 +849,18 @@ next:
 static int hist_browser__show_callchain_graph(struct hist_browser *browser,
 					struct rb_root *root, int level,
 					unsigned short row, u64 total,
+					u64 parent_total,
 					print_callchain_entry_fn print,
 					struct callchain_print_arg *arg,
 					check_output_full_fn is_output_full)
 {
 	struct rb_node *node;
 	int first_row = row, offset = level * LEVEL_OFFSET_STEP;
-	u64 new_total;
 	bool need_percent;
+	u64 percent_total = total;
+
+	if (callchain_param.mode == CHAIN_GRAPH_REL)
+		percent_total = parent_total;
 
 	node = rb_first(root);
 	need_percent = node && rb_next(node);
@@ -878,7 +884,7 @@ static int hist_browser__show_callchain_graph(struct hist_browser *browser,
 			folded_sign = callchain_list__folded(chain);
 
 			row += hist_browser__show_callchain_list(browser, child,
-							chain, row, total,
+							chain, row, percent_total,
 							was_first && need_percent,
 							offset + extra_offset,
 							print, arg);
@@ -893,13 +899,9 @@ static int hist_browser__show_callchain_graph(struct hist_browser *browser,
 		if (folded_sign == '-') {
 			const int new_level = level + (extra_offset ? 2 : 1);
 
-			if (callchain_param.mode == CHAIN_GRAPH_REL)
-				new_total = child->children_hit;
-			else
-				new_total = total;
-
 			row += hist_browser__show_callchain_graph(browser, &child->rb_root,
-							    new_level, row, new_total,
+							    new_level, row, total,
+							    child->children_hit,
 							    print, arg, is_output_full);
 		}
 		if (is_output_full(browser, row))
@@ -918,27 +920,29 @@ static int hist_browser__show_callchain(struct hist_browser *browser,
 					check_output_full_fn is_output_full)
 {
 	u64 total = hists__total_period(entry->hists);
+	u64 parent_total;
 	int printed;
 
-	if (callchain_param.mode == CHAIN_GRAPH_REL) {
-		if (symbol_conf.cumulate_callchain)
-			total = entry->stat_acc->period;
-		else
-			total = entry->stat.period;
-	}
+	if (symbol_conf.cumulate_callchain)
+		parent_total = entry->stat_acc->period;
+	else
+		parent_total = entry->stat.period;
 
 	if (callchain_param.mode == CHAIN_FLAT) {
 		printed = hist_browser__show_callchain_flat(browser,
-						&entry->sorted_chain, row, total,
-						print, arg, is_output_full);
+						&entry->sorted_chain, row,
+						total, parent_total, print, arg,
+						is_output_full);
 	} else if (callchain_param.mode == CHAIN_FOLDED) {
 		printed = hist_browser__show_callchain_folded(browser,
-						&entry->sorted_chain, row, total,
-						print, arg, is_output_full);
+						&entry->sorted_chain, row,
+						total, parent_total, print, arg,
+						is_output_full);
 	} else {
 		printed = hist_browser__show_callchain_graph(browser,
-						&entry->sorted_chain, level, row, total,
-						print, arg, is_output_full);
+						&entry->sorted_chain, level, row,
+						total, parent_total, print, arg,
+						is_output_full);
 	}
 
 	if (arg->is_current_entry)