From 63b4ed0dd3e1555b4c9d82ef0ca0648493f75af2 Mon Sep 17 00:00:00 2001
From: Pavel Hrdina <phrdina@redhat.com>
Date: Mon, 10 Sep 2018 15:43:42 +0200
Subject: [PATCH] vircgroup: fix bug in virCgroupEnableMissingControllers
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If we are on host with systemd we need to build cgroup hierarchy
ourselves for controllers that are not managed by systemd.

As a starting parent we need to force root group because
virCgroupMakeGroup() takes that parent in order to inherit values
for cpuset controller.

By default cpuset controller is managed by systemd so we will never
hit the issue but for v2 cgroups we need to use parent cgroup every
time.

Reviewed-by: Fabiano Fidêncio <fidencio@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
---
 src/util/vircgroup.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/util/vircgroup.c b/src/util/vircgroup.c
index ec411a7b2b..8508a951d4 100644
--- a/src/util/vircgroup.c
+++ b/src/util/vircgroup.c
@@ -1491,7 +1491,7 @@ virCgroupEnableMissingControllers(char *path,
     int ret = -1;
 
     if (virCgroupNew(pidleader,
-                     "",
+                     "/",
                      NULL,
                      controllers,
                      &parent) < 0)
-- 
2.47.3