linux-kernel - [PATCH v1 04/22] perf metricgroup: When copy metrics copy default information

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Message-ID: <20251024175857.808401-5-irogers@google.com>
Date: Fri, 24 Oct 2025 10:58:39 -0700
From: Ian Rogers <irogers@...gle.com>
To: Peter Zijlstra <peterz@...radead.org>, Ingo Molnar <mingo@...hat.com>, 
	Arnaldo Carvalho de Melo <acme@...nel.org>, Namhyung Kim <namhyung@...nel.org>, 
	Alexander Shishkin <alexander.shishkin@...ux.intel.com>, Jiri Olsa <jolsa@...nel.org>, 
	Ian Rogers <irogers@...gle.com>, Adrian Hunter <adrian.hunter@...el.com>, 
	James Clark <james.clark@...aro.org>, Xu Yang <xu.yang_2@....com>, 
	Chun-Tse Shao <ctshao@...gle.com>, Thomas Richter <tmricht@...ux.ibm.com>, 
	Sumanth Korikkar <sumanthk@...ux.ibm.com>, Collin Funk <collin.funk1@...il.com>, 
	Thomas Falcon <thomas.falcon@...el.com>, Howard Chu <howardchu95@...il.com>, 
	Dapeng Mi <dapeng1.mi@...ux.intel.com>, Levi Yun <yeoreum.yun@....com>, 
	Yang Li <yang.lee@...ux.alibaba.com>, linux-kernel@...r.kernel.org, 
	linux-perf-users@...r.kernel.org
Subject: [PATCH v1 04/22] perf metricgroup: When copy metrics copy default information

When copy metrics into a group also copy default information from the
original metrics.

Signed-off-by: Ian Rogers <irogers@...gle.com>
---
 tools/perf/util/metricgroup.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/tools/perf/util/metricgroup.c b/tools/perf/util/metricgroup.c
index c822cf5da53b..48936e517803 100644
--- a/tools/perf/util/metricgroup.c
+++ b/tools/perf/util/metricgroup.c
@@ -1608,6 +1608,7 @@ int metricgroup__copy_metric_events(struct evlist *evlist, struct cgroup *cgrp,
 		pr_debug("copying metric event for cgroup '%s': %s (idx=%d)\n",
 			 cgrp ? cgrp->name : "root", evsel->name, evsel->core.idx);
 
+		new_me->is_default = old_me->is_default;
 		list_for_each_entry(old_expr, &old_me->head, nd) {
 			new_expr = malloc(sizeof(*new_expr));
 			if (!new_expr)
@@ -1621,6 +1622,7 @@ int metricgroup__copy_metric_events(struct evlist *evlist, struct cgroup *cgrp,
 
 			new_expr->metric_unit = old_expr->metric_unit;
 			new_expr->runtime = old_expr->runtime;
+			new_expr->default_metricgroup_name = old_expr->default_metricgroup_name;
 
 			if (old_expr->metric_refs) {
 				/* calculate number of metric_events */
-- 
2.51.1.821.gb6fe4d2222-goog