vircgroup: extract virCgroupV1(Set|Get)FreezerState

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

@@ -2599,18 +2599,14 @@ virCgroupGetCpuacctStat(virCgroupPtr group, unsigned long long *user,
 int
 virCgroupSetFreezerState(virCgroupPtr group, const char *state)
 {
-    return virCgroupSetValueStr(group,
-                                VIR_CGROUP_CONTROLLER_FREEZER,
-                                "freezer.state", state);
+    VIR_CGROUP_BACKEND_CALL(group, setFreezerState, -1, state);
 }
 
 
 int
 virCgroupGetFreezerState(virCgroupPtr group, char **state)
 {
-    return virCgroupGetValueStr(group,
-                                VIR_CGROUP_CONTROLLER_FREEZER,
-                                "freezer.state", state);
+    VIR_CGROUP_BACKEND_CALL(group, getFreezerState, -1, state);
 }
 
 

src/util/vircgroupbackend.h

@@ -316,6 +316,14 @@ typedef int
                              unsigned long long *user,
                              unsigned long long *sys);
 
+typedef int
+(*virCgroupSetFreezerStateCB)(virCgroupPtr group,
+                              const char *state);
+
+typedef int
+(*virCgroupGetFreezerStateCB)(virCgroupPtr group,
+                              char **state);
+
 struct _virCgroupBackend {
     virCgroupBackendType type;
 
@@ -382,6 +390,9 @@ struct _virCgroupBackend {
     virCgroupGetCpuacctUsageCB getCpuacctUsage;
     virCgroupGetCpuacctPercpuUsageCB getCpuacctPercpuUsage;
     virCgroupGetCpuacctStatCB getCpuacctStat;
+
+    virCgroupSetFreezerStateCB setFreezerState;
+    virCgroupGetFreezerStateCB getFreezerState;
 };
 typedef struct _virCgroupBackend virCgroupBackend;
 typedef virCgroupBackend *virCgroupBackendPtr;

src/util/vircgroupv1.c

@@ -1928,6 +1928,26 @@ virCgroupV1GetCpuacctStat(virCgroupPtr group,
 }
 
 
+static int
+virCgroupV1SetFreezerState(virCgroupPtr group,
+                           const char *state)
+{
+    return virCgroupSetValueStr(group,
+                                VIR_CGROUP_CONTROLLER_FREEZER,
+                                "freezer.state", state);
+}
+
+
+static int
+virCgroupV1GetFreezerState(virCgroupPtr group,
+                           char **state)
+{
+    return virCgroupGetValueStr(group,
+                                VIR_CGROUP_CONTROLLER_FREEZER,
+                                "freezer.state", state);
+}
+
+
 virCgroupBackend virCgroupV1Backend = {
     .type = VIR_CGROUP_BACKEND_TYPE_V1,
 
@@ -1992,6 +2012,9 @@ virCgroupBackend virCgroupV1Backend = {
     .getCpuacctUsage = virCgroupV1GetCpuacctUsage,
     .getCpuacctPercpuUsage = virCgroupV1GetCpuacctPercpuUsage,
     .getCpuacctStat = virCgroupV1GetCpuacctStat,
+
+    .setFreezerState = virCgroupV1SetFreezerState,
+    .getFreezerState = virCgroupV1GetFreezerState,
 };