vircgroup: introduce virCgroupV2HasController

Signed-off-by: Pavel Hrdina <phrdina@redhat.com>

diff --git a/src/util/vircgroupv2.c b/src/util/vircgroupv2.c
index 77b644007869d8a9727949e34c0a7cd5208428d9..a9f8f8aa5e8e242b4028e927f32f416d1883fc25 100644 (file)
--- a/src/util/vircgroupv2.c
+++ b/src/util/vircgroupv2.c
@@ -298,6 +298,14 @@ virCgroupV2DetectControllers(virCgroupPtr group,
 }
 
 
+static bool
+virCgroupV2HasController(virCgroupPtr group,
+                         int controller)
+{
+    return group->unified.controllers & (1 << controller);
+}
+
+
 virCgroupBackend virCgroupV2Backend = {
     .type = VIR_CGROUP_BACKEND_TYPE_V2,
 
@@ -310,6 +318,7 @@ virCgroupBackend virCgroupV2Backend = {
     .validatePlacement = virCgroupV2ValidatePlacement,
     .stealPlacement = virCgroupV2StealPlacement,
     .detectControllers = virCgroupV2DetectControllers,
+    .hasController = virCgroupV2HasController,
 };