From 1f16b4a6c496288aa62dc2ac973f88ca6c801b5d Mon Sep 17 00:00:00 2001
From: Lennart Poettering <lennart@poettering.net>
Date: Mon, 14 Mar 2011 23:40:41 +0100
Subject: [PATCH] cgls: by default start with group of PID 1

---
 src/cgls.c | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/src/cgls.c b/src/cgls.c
index 93617ddc..6f083015 100644
--- a/src/cgls.c
+++ b/src/cgls.c
@@ -106,8 +106,18 @@ int main(int argc, char *argv[]) {
                 if (path_startswith(p, "/sys/fs/cgroup")) {
                         printf("Working Directory %s:\n", p);
                         r = show_cgroup_by_path(p, NULL, 0);
-                } else
-                        r = show_cgroup(SYSTEMD_CGROUP_CONTROLLER, "/", NULL, 0);
+                } else {
+                        char *root = NULL;
+                        const char *t = NULL;
+
+                        if ((r = cg_get_by_pid(SYSTEMD_CGROUP_CONTROLLER, 1, &root)) < 0)
+                                t = "/";
+                        else
+                                t = root;
+
+                        r = show_cgroup(SYSTEMD_CGROUP_CONTROLLER, t, NULL, 0);
+                        free(root);
+                }
 
                 free(p);
         }
-- 
2.39.5