From ed1de7108e9122520f9328236df5b59a53a8c0d6 Mon Sep 17 00:00:00 2001
From: Florian Mayer <florian.mayer@bitsrc.org>
Date: Fri, 10 Jul 2020 18:40:36 +0200
Subject: [PATCH] Explain how to determine hierarchy type from shell

This makes it easier for people than just recommending the syscall.
---
 docs/CGROUP_DELEGATION.md | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/docs/CGROUP_DELEGATION.md b/docs/CGROUP_DELEGATION.md
index d05503bc97..4011f09322 100644
--- a/docs/CGROUP_DELEGATION.md
+++ b/docs/CGROUP_DELEGATION.md
@@ -131,6 +131,8 @@ If you wonder how to detect which of these three modes is currently used, use
 you are either in legacy or hybrid mode. To distinguish these two cases, run
 `statfs()` again on `/sys/fs/cgroup/unified/`. If that succeeds and reports
 `CGROUP2_SUPER_MAGIC` you are in hybrid mode, otherwise not.
+From a shell, you can use check the `Type` in `stat -f /sys/fs/cgroup` and
+`stat -f /sys/fs/cgroup/unified`.
 
 ## systemd's Unit Types