replace pkg/util/file with k8s.io/utils/path

pkg/volume/rbd/rbd_util.go

@@ -37,11 +37,11 @@ import (
 	"k8s.io/apimachinery/pkg/util/errors"
 	"k8s.io/apimachinery/pkg/util/wait"
 	"k8s.io/klog"
-	fileutil "k8s.io/kubernetes/pkg/util/file"
 	"k8s.io/kubernetes/pkg/util/mount"
 	"k8s.io/kubernetes/pkg/util/node"
 	"k8s.io/kubernetes/pkg/volume"
 	volutil "k8s.io/kubernetes/pkg/volume/util"
+	utilpath "k8s.io/utils/path"
 )
 
 const (
@@ -486,7 +486,7 @@ func (util *RBDUtil) DetachDisk(plugin *rbdPlugin, deviceMountPath string, devic
 	// Currently, we don't persist rbd info on the disk, but for backward
 	// compatbility, we need to clean it if found.
 	rbdFile := path.Join(deviceMountPath, "rbd.json")
-	exists, err := fileutil.FileExists(rbdFile)
+	exists, err := utilpath.Exists(utilpath.CheckFollowSymlink, rbdFile)
 	if err != nil {
 		return err
 	}