From 87cfad3d6cd619c6090e8209092448ae68279b0c Mon Sep 17 00:00:00 2001
From: E5ten <ethancsommer@gmail.com>
Date: Tue, 27 Aug 2019 11:48:21 -0400
Subject: [PATCH] cgroup2_set_limits: verify that the cgroup2 path is a mount
 point

prior to cgroups getting mounted, /sys/fs/cgroup will still exist,
but attempts to make directories in it will fail, change cgroup2_set_limits() to
verify that cgroups are mounted instead of just checking that /sys/fs/cgroup
exists.

This fixes #307.
This fixes #321.
---
 sh/rc-cgroup.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sh/rc-cgroup.sh b/sh/rc-cgroup.sh
index 5d24344d..77d56dd1 100644
--- a/sh/rc-cgroup.sh
+++ b/sh/rc-cgroup.sh
@@ -181,7 +181,7 @@ cgroup2_set_limits()
 {
 	local cgroup_path
 	cgroup_path="$(cgroup2_find_path)"
-	[ -d "${cgroup_path}" ] || return 0
+	mountinfo -q "${cgroup_path}"|| return 0
 	rc_cgroup_path="${cgroup_path}/${RC_SVCNAME}"
 	[ ! -d "${rc_cgroup_path}" ] && mkdir "${rc_cgroup_path}"
 	[ -f "${rc_cgroup_path}"/cgroup.procs ] &&