[libvirt] [PATCH v2 4/6] 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>
Reviewed-by: Ján Tomko <jtomko(a)redhat.com>
---
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