zdtm/static: debug cgroupv2_00

Signed-off-by: Bui Quang Minh <[email protected]>

test/zdtm/static/cgroupv2_00.c

@@ -14,6 +14,7 @@ int main(int argc, char **argv)
 {
 	char path[1024], aux[1024];
 	int ret = -1;
+	FILE *cgf;
 
 	test_init(argc, argv);
 
@@ -54,6 +55,16 @@ int main(int argc, char **argv)
 	if (write_value(path, aux))
 		goto out;
 
+	cgf = fopen("/proc/self/cgroup", "r");
+	if (cgf == NULL)
+		goto out;
+
+	while (fgets(aux, sizeof(aux), cgf)) {
+		test_msg("cgroup: %s\n", aux);
+	}
+
+	fclose(cgf);
+
 	test_daemon();
 	test_waitsig();