vircgroup: extract virCgroupV1SupportsCpuBW

Reviewed-by: Fabiano Fidêncio <fidencio@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>

diff --git a/src/util/vircgroup.c b/src/util/vircgroup.c
index 44e88c46f2ab6baf0f2ce6c435e3fda23fca7d4e..fce4b82874c363aaafea2af05f9d365d32f1f015 100644 (file)
--- a/src/util/vircgroup.c
+++ b/src/util/vircgroup.c
@@ -2681,18 +2681,7 @@ int virCgroupSetOwner(virCgroupPtr cgroup,
 bool
 virCgroupSupportsCpuBW(virCgroupPtr cgroup)
 {
-    VIR_AUTOFREE(char *) path = NULL;
-
-    if (!cgroup)
-        return false;
-
-    if (virCgroupPathOfController(cgroup, VIR_CGROUP_CONTROLLER_CPU,
-                                  "cpu.cfs_period_us", &path) < 0) {
-        virResetLastError();
-        return false;
-    }
-
-    return virFileExists(path);
+    VIR_CGROUP_BACKEND_CALL(cgroup, supportsCpuBW, false);
 }
 
 int

diff --git a/src/util/vircgroupbackend.h b/src/util/vircgroupbackend.h
index f7c230db7627f3ff14c0e96dec1267d14f4d10ee..d3d5e7c222964bd999121c6a6425160ae1aa56b0 100644 (file)
--- a/src/util/vircgroupbackend.h
+++ b/src/util/vircgroupbackend.h
@@ -300,6 +300,9 @@ typedef int
 (*virCgroupGetCpuCfsQuotaCB)(virCgroupPtr group,
                              long long *cfs_quota);
 
+typedef bool
+(*virCgroupSupportsCpuBWCB)(virCgroupPtr cgroup);
+
 struct _virCgroupBackend {
     virCgroupBackendType type;
 
@@ -361,6 +364,7 @@ struct _virCgroupBackend {
     virCgroupGetCpuCfsPeriodCB getCpuCfsPeriod;
     virCgroupSetCpuCfsQuotaCB setCpuCfsQuota;
     virCgroupGetCpuCfsQuotaCB getCpuCfsQuota;
+    virCgroupSupportsCpuBWCB supportsCpuBW;
 };
 typedef struct _virCgroupBackend virCgroupBackend;
 typedef virCgroupBackend *virCgroupBackendPtr;

diff --git a/src/util/vircgroupv1.c b/src/util/vircgroupv1.c
index ea206d8b37248ad188fd7c87e84ca5a10fe39030..2707e7d1fb6b80ec9723516aae65aad19473a4bd 100644 (file)
--- a/src/util/vircgroupv1.c
+++ b/src/util/vircgroupv1.c
@@ -1845,6 +1845,24 @@ virCgroupV1GetCpuCfsQuota(virCgroupPtr group,
 }
 
 
+static bool
+virCgroupV1SupportsCpuBW(virCgroupPtr cgroup)
+{
+    VIR_AUTOFREE(char *) path = NULL;
+
+    if (!cgroup)
+        return false;
+
+    if (virCgroupV1PathOfController(cgroup, VIR_CGROUP_CONTROLLER_CPU,
+                                    "cpu.cfs_period_us", &path) < 0) {
+        virResetLastError();
+        return false;
+    }
+
+    return virFileExists(path);
+}
+
+
 virCgroupBackend virCgroupV1Backend = {
     .type = VIR_CGROUP_BACKEND_TYPE_V1,
 
@@ -1904,6 +1922,7 @@ virCgroupBackend virCgroupV1Backend = {
     .getCpuCfsPeriod = virCgroupV1GetCpuCfsPeriod,
     .setCpuCfsQuota = virCgroupV1SetCpuCfsQuota,
     .getCpuCfsQuota = virCgroupV1GetCpuCfsQuota,
+    .supportsCpuBW = virCgroupV1SupportsCpuBW,
 };