Update go dependencies and cleanup deprecated packages

vendor/k8s.io/kubernetes/pkg/util/mount/mount_linux.go

@@ -44,9 +44,6 @@ const (
 	procMountsPath = "/proc/mounts"
 	// Location of the mountinfo file
 	procMountInfoPath = "/proc/self/mountinfo"
-)
-
-const (
 	// 'fsck' found errors and corrected them
 	fsckErrorsCorrected = 1
 	// 'fsck' found errors but exited without correcting them
@@ -73,12 +70,12 @@ func New(mounterPath string) Interface {
 
 // Mount mounts source to target as fstype with given options. 'source' and 'fstype' must
 // be an emtpy string in case it's not required, e.g. for remount, or for auto filesystem
-// type, where kernel handles fs type for you. The mount 'options' is a list of options,
+// type, where kernel handles fstype for you. The mount 'options' is a list of options,
 // currently come from mount(8), e.g. "ro", "remount", "bind", etc. If no more option is
 // required, call Mount with an empty string list or nil.
 func (mounter *Mounter) Mount(source string, target string, fstype string, options []string) error {
 	// Path to mounter binary if containerized mounter is needed. Otherwise, it is set to empty.
-	// All Linux distros are expected to be shipped with a mount utility that an support bind mounts.
+	// All Linux distros are expected to be shipped with a mount utility that a support bind mounts.
 	mounterPath := ""
 	bind, bindRemountOpts := isBind(options)
 	if bind {
@@ -292,17 +289,29 @@ func (mounter *Mounter) DeviceOpened(pathname string) (bool, error) {
 // PathIsDevice uses FileInfo returned from os.Stat to check if path refers
 // to a device.
 func (mounter *Mounter) PathIsDevice(pathname string) (bool, error) {
-	return pathIsDevice(pathname)
+	pathType, err := mounter.GetFileType(pathname)
+	isDevice := pathType == FileTypeCharDev || pathType == FileTypeBlockDev
+	return isDevice, err
 }
 
 func exclusiveOpenFailsOnDevice(pathname string) (bool, error) {
-	isDevice, err := pathIsDevice(pathname)
+	var isDevice bool
+	finfo, err := os.Stat(pathname)
+	if os.IsNotExist(err) {
+		isDevice = false
+	}
+	// err in call to os.Stat
 	if err != nil {
 		return false, fmt.Errorf(
 			"PathIsDevice failed for path %q: %v",
 			pathname,
 			err)
 	}
+	// path refers to a device
+	if finfo.Mode()&os.ModeDevice != 0 {
+		isDevice = true
+	}
+
 	if !isDevice {
 		glog.Errorf("Path %q is not refering to a device.", pathname)
 		return false, nil
@@ -322,23 +331,6 @@ func exclusiveOpenFailsOnDevice(pathname string) (bool, error) {
 	return false, errno
 }
 
-func pathIsDevice(pathname string) (bool, error) {
-	finfo, err := os.Stat(pathname)
-	if os.IsNotExist(err) {
-		return false, nil
-	}
-	// err in call to os.Stat
-	if err != nil {
-		return false, err
-	}
-	// path refers to a device
-	if finfo.Mode()&os.ModeDevice != 0 {
-		return true, nil
-	}
-	// path does not refer to device
-	return false, nil
-}
-
 //GetDeviceNameFromMount: given a mount point, find the device name from its global mount point
 func (mounter *Mounter) GetDeviceNameFromMount(mountPath, pluginDir string) (string, error) {
 	return getDeviceNameFromMount(mounter, mountPath, pluginDir)
@@ -418,9 +410,64 @@ func parseProcMounts(content []byte) ([]MountPoint, error) {
 }
 
 func (mounter *Mounter) MakeRShared(path string) error {
-	mountCmd := defaultMountCommand
-	mountArgs := []string{}
-	return doMakeRShared(path, procMountInfoPath, mountCmd, mountArgs)
+	return doMakeRShared(path, procMountInfoPath)
+}
+
+func (mounter *Mounter) GetFileType(pathname string) (FileType, error) {
+	var pathType FileType
+	finfo, err := os.Stat(pathname)
+	if os.IsNotExist(err) {
+		return pathType, fmt.Errorf("path %q does not exist", pathname)
+	}
+	// err in call to os.Stat
+	if err != nil {
+		return pathType, err
+	}
+
+	mode := finfo.Sys().(*syscall.Stat_t).Mode
+	switch mode & syscall.S_IFMT {
+	case syscall.S_IFSOCK:
+		return FileTypeSocket, nil
+	case syscall.S_IFBLK:
+		return FileTypeBlockDev, nil
+	case syscall.S_IFCHR:
+		return FileTypeBlockDev, nil
+	case syscall.S_IFDIR:
+		return FileTypeDirectory, nil
+	case syscall.S_IFREG:
+		return FileTypeFile, nil
+	}
+
+	return pathType, fmt.Errorf("only recognise file, directory, socket, block device and character device")
+}
+
+func (mounter *Mounter) MakeDir(pathname string) error {
+	err := os.MkdirAll(pathname, os.FileMode(0755))
+	if err != nil {
+		if !os.IsExist(err) {
+			return err
+		}
+	}
+	return nil
+}
+
+func (mounter *Mounter) MakeFile(pathname string) error {
+	f, err := os.OpenFile(pathname, os.O_CREATE, os.FileMode(0644))
+	defer f.Close()
+	if err != nil {
+		if !os.IsExist(err) {
+			return err
+		}
+	}
+	return nil
+}
+
+func (mounter *Mounter) ExistsPath(pathname string) bool {
+	_, err := os.Stat(pathname)
+	if err != nil {
+		return false
+	}
+	return true
 }
 
 // formatAndMount uses unix utils to format and mount the given disk
@@ -451,7 +498,7 @@ func (mounter *SafeFormatAndMount) formatAndMount(source string, target string,
 	if mountErr != nil {
 		// Mount failed. This indicates either that the disk is unformatted or
 		// it contains an unexpected filesystem.
-		existingFormat, err := mounter.getDiskFormat(source)
+		existingFormat, err := mounter.GetDiskFormat(source)
 		if err != nil {
 			return err
 		}
@@ -489,8 +536,8 @@ func (mounter *SafeFormatAndMount) formatAndMount(source string, target string,
 	return mountErr
 }
 
-// diskLooksUnformatted uses 'lsblk' to see if the given disk is unformated
-func (mounter *SafeFormatAndMount) getDiskFormat(disk string) (string, error) {
+// GetDiskFormat uses 'lsblk' to see if the given disk is unformated
+func (mounter *SafeFormatAndMount) GetDiskFormat(disk string) (string, error) {
 	args := []string{"-n", "-o", "FSTYPE", disk}
 	glog.V(4).Infof("Attempting to determine if disk %q is formatted using lsblk with args: (%v)", disk, args)
 	dataOut, err := mounter.Exec.Run("lsblk", args...)
@@ -591,7 +638,7 @@ func parseMountInfo(filename string) ([]mountInfo, error) {
 // path is shared and bind-mounts it as rshared if needed. mountCmd and
 // mountArgs are expected to contain mount-like command, doMakeRShared will add
 // '--bind <path> <path>' and '--make-rshared <path>' to mountArgs.
-func doMakeRShared(path string, mountInfoFilename string, mountCmd string, mountArgs []string) error {
+func doMakeRShared(path string, mountInfoFilename string) error {
 	shared, err := isShared(path, mountInfoFilename)
 	if err != nil {
 		return err