[libvirt] [PATCH v3 4/7] [ACKED] util: vircgroupv2: enable CPU controller only if it's available

It might happen that we are not able to enable CPU controller so we can enable it for thread sub-cgroups only if it's available in parent cgroup. Signed-off-by: Pavel Hrdina <phrdina(a)redhat.com&gt; Reviewed-by: Ján Tomko <jtomko(a)redhat.com&gt; --- src/util/vircgroupv2.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/src/util/vircgroupv2.c b/src/util/vircgroupv2.c index 6bcbb7e1a0..3f4548b532 100644 --- a/src/util/vircgroupv2.c +++ b/src/util/vircgroupv2.c @@ -404,7 +404,8 @@ virCgroupV2MakeGroup(virCgroupPtr parent ATTRIBUTE_UNUSED, return -1; } - if (virCgroupV2EnableController(parent, + if (virCgroupV2HasController(parent, VIR_CGROUP_CONTROLLER_CPU) && + virCgroupV2EnableController(parent, VIR_CGROUP_CONTROLLER_CPU) < 0) { return -1; } -- 2.21.0