vircgroup: extract virCgroupV1GetCpuacct*Usage

Reviewed-by: NFabiano Fidêncio <fidencio@redhat.com>
Reviewed-by: NJán Tomko <jtomko@redhat.com>
Signed-off-by: NPavel Hrdina <phrdina@redhat.com>

src/util/vircgroup.c

@@ -2261,8 +2261,7 @@ virCgroupSetCpuCfsQuota(virCgroupPtr group, long long cfs_quota)
 int
 virCgroupGetCpuacctPercpuUsage(virCgroupPtr group, char **usage)
 {
-    return virCgroupGetValueStr(group, VIR_CGROUP_CONTROLLER_CPUACCT,
-                                "cpuacct.usage_percpu", usage);
+    VIR_CGROUP_BACKEND_CALL(group, getCpuacctPercpuUsage, -1, usage);
 }
 
 
@@ -2585,9 +2584,7 @@ virCgroupGetCpuCfsQuota(virCgroupPtr group, long long *cfs_quota)
 int
 virCgroupGetCpuacctUsage(virCgroupPtr group, unsigned long long *usage)
 {
-    return virCgroupGetValueU64(group,
-                                VIR_CGROUP_CONTROLLER_CPUACCT,
-                                "cpuacct.usage", usage);
+    VIR_CGROUP_BACKEND_CALL(group, getCpuacctUsage, -1, usage);
 }
 
 

src/util/vircgroupbackend.h

@@ -303,6 +303,14 @@ typedef int
 typedef bool
 (*virCgroupSupportsCpuBWCB)(virCgroupPtr cgroup);
 
+typedef int
+(*virCgroupGetCpuacctUsageCB)(virCgroupPtr group,
+                              unsigned long long *usage);
+
+typedef int
+(*virCgroupGetCpuacctPercpuUsageCB)(virCgroupPtr group,
+                                    char **usage);
+
 struct _virCgroupBackend {
     virCgroupBackendType type;
 
@@ -365,6 +373,9 @@ struct _virCgroupBackend {
     virCgroupSetCpuCfsQuotaCB setCpuCfsQuota;
     virCgroupGetCpuCfsQuotaCB getCpuCfsQuota;
     virCgroupSupportsCpuBWCB supportsCpuBW;
+
+    virCgroupGetCpuacctUsageCB getCpuacctUsage;
+    virCgroupGetCpuacctPercpuUsageCB getCpuacctPercpuUsage;
 };
 typedef struct _virCgroupBackend virCgroupBackend;
 typedef virCgroupBackend *virCgroupBackendPtr;

src/util/vircgroupv1.c

@@ -1863,6 +1863,25 @@ virCgroupV1SupportsCpuBW(virCgroupPtr cgroup)
 }
 
 
+static int
+virCgroupV1GetCpuacctUsage(virCgroupPtr group,
+                           unsigned long long *usage)
+{
+    return virCgroupGetValueU64(group,
+                                VIR_CGROUP_CONTROLLER_CPUACCT,
+                                "cpuacct.usage", usage);
+}
+
+
+static int
+virCgroupV1GetCpuacctPercpuUsage(virCgroupPtr group,
+                                 char **usage)
+{
+    return virCgroupGetValueStr(group, VIR_CGROUP_CONTROLLER_CPUACCT,
+                                "cpuacct.usage_percpu", usage);
+}
+
+
 virCgroupBackend virCgroupV1Backend = {
     .type = VIR_CGROUP_BACKEND_TYPE_V1,
 
@@ -1923,6 +1942,9 @@ virCgroupBackend virCgroupV1Backend = {
     .setCpuCfsQuota = virCgroupV1SetCpuCfsQuota,
     .getCpuCfsQuota = virCgroupV1GetCpuCfsQuota,
     .supportsCpuBW = virCgroupV1SupportsCpuBW,
+
+    .getCpuacctUsage = virCgroupV1GetCpuacctUsage,
+    .getCpuacctPercpuUsage = virCgroupV1GetCpuacctPercpuUsage,
 };