Fix runc pause and runc update

Fixes: #1034
Fixes: #1031

Signed-off-by: Qiang Huang <[email protected]>

Author: hqhq

libcontainer/cgroups/fs/apply_raw.go

@@ -196,17 +196,8 @@ func (m *Manager) Set(container *configs.Config) error {
 		return nil
 	}
 	for _, sys := range subsystems {
-		// Generate fake cgroup data.
-		d, err := getCgroupData(container.Cgroups, -1)
-		if err != nil {
-			return err
-		}
-		// Get the path, but don't error out if the cgroup wasn't found.
-		path, err := d.path(sys.Name())
-		if err != nil && !cgroups.IsNotFound(err) {
-			return err
-		}
-
+		paths := m.GetPaths()
+		path := paths[sys.Name()]
 		if err := sys.Set(path, container.Cgroups); err != nil {
 			return err
 		}
@@ -223,14 +214,8 @@ func (m *Manager) Set(container *configs.Config) error {
 // Freeze toggles the container's freezer cgroup depending on the state
 // provided
 func (m *Manager) Freeze(state configs.FreezerState) error {
-	d, err := getCgroupData(m.Cgroups, 0)
-	if err != nil {
-		return err
-	}
-	dir, err := d.path("freezer")
-	if err != nil {
-		return err
-	}
+	paths := m.GetPaths()
+	dir := paths["freezer"]
 	prevState := m.Cgroups.Resources.Freezer
 	m.Cgroups.Resources.Freezer = state
 	freezer, err := subsystems.Get("freezer")