From ae7a2f6c65ff19fbc4de96723c16a4eeb2c96fe2 Mon Sep 17 00:00:00 2001
From: Lionel Sausin <ls@initiatives.fr>
Date: Wed, 5 May 2021 10:17:45 +0200
Subject: [PATCH] LXC v3.1 compatibility

The cgroup data was (yet again) moved to a new location in recent LXC
releases, starting with v3.1.0 from what I could gather.

https://github.com/lxc/lxc/issues/2782 states:
> [The cgroup lxc.payload] exists to adhere to cgroup2 delegation requirements.
---
 plugins/lxc/lxc_guests | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/plugins/lxc/lxc_guests b/plugins/lxc/lxc_guests
index 24720003..1e4f2fb4 100755
--- a/plugins/lxc/lxc_guests
+++ b/plugins/lxc/lxc_guests
@@ -135,7 +135,8 @@ lxc_count_processes () {
       "/sys/fs/cgroup/lxc/$guest_name/tasks" \
       "/sys/fs/cgroup/cpuacct/lxc/$guest_name/tasks" \
       "/sys/fs/cgroup/systemd/lxc/$guest_name/tasks" \
-      "/sys/fs/cgroup/cpuacct/sysdefault/lxc/$guest_name/tasks"
+      "/sys/fs/cgroup/cpuacct/sysdefault/lxc/$guest_name/tasks" \
+      "/sys/fs/cgroup/cpu/lxc.payload.$guest_name/tasks"
    do
       if [ -e "$SYSFS" ]; then
          wc -l <"$SYSFS"