Trace("Walk", root)
	info, err := Lstat(root)
	if err != nil {
		err = walkFn(root, nil, err)
	} else {
		err = walk(root, info, walkFn)
	}
	if err == filepath.SkipDir {
		return nil
	}
	return err
}

// Lstat implements a version of os.Lstat that operates on the overlay filesystem.
func Lstat(path string) (fs.FileInfo, error) {
	Trace("Lstat", path)
	return overlayStat(path, os.Lstat, "lstat")

func statNolog(name string) (FileInfo, error) {
	return stat("Stat", name, true)
}

// lstatNolog implements Lstat for Windows.
func lstatNolog(name string) (FileInfo, error) {
	followSurrogates := false
	if name != "" && IsPathSeparator(name[len(name)-1]) {
		// We try to implement POSIX semantics for Lstat path resolution
		// (per https://pubs.opengroup.org/onlinepubs/9699919799.2013edition/basedefs/V1_chap04.html#tag_04_12):

//
// Walk calls the function with a non-nil err argument in two cases.
//
// First, if an [os.Lstat] on the root directory or any directory or file
// in the tree fails, Walk calls the function with path set to that
// directory or file's path, info set to nil, and err set to the error
// from os.Lstat.
//
// Second, if a directory's Readdirnames method fails, Walk calls the

On Windows, the mode bits reported by [Lstat] and [Stat] for
reparse points changed. Mount points no longer have [ModeSymlink] set,
and reparse points that are not symlinks, Unix sockets, or dedup files
now always have [ModeIrregular] set.
This behavior is controlled by the `winsymlink` setting.
For Go 1.23, it defaults to `winsymlink=1`.

					t.Error("present twice:", m)
				}
				found = true
				lstat, err := Lstat(dir + "/" + m)
				if err != nil {
					t.Fatal(err)
				}
				if n.IsDir() != lstat.IsDir() {
					t.Errorf("%s: IsDir=%v, want %v", m, n.IsDir(), lstat.IsDir())
				}
				if n.Type() != lstat.Mode().Type() {
					t.Errorf("%s: IsDir=%v, want %v", m, n.Type(), lstat.Mode().Type())
				}
				info, err := n.Info()
				if err != nil {

		}
	}

	// Parent now exists; invoke Mkdir and use its result.
	err = Mkdir(path, perm)
	if err != nil {
		// Handle arguments like "foo/." by
		// double-checking that directory doesn't exist.
		dir, err1 := Lstat(path)
		if err1 == nil && dir.IsDir() {
			return nil
		}
		return err
	}
	return nil
}

// RemoveAll removes path and any children it contains.
// It removes everything it can but returns the first error

}

func (c *nfsUnmounter) TearDownAt(dir string) error {
	// Use extensiveMountPointCheck to consult /proc/mounts. We can't use faster
	// IsLikelyNotMountPoint (lstat()), since there may be root_squash on the
	// NFS server and kubelet may not be able to do lstat/stat() there.
	forceUnmounter, ok := c.mounter.(mount.MounterForceUnmounter)
	if ok {
		klog.V(4).Infof("Using force unmounter interface")

)

const _UTIME_OMIT = unix.UTIME_OMIT

// fixLongPath is a noop on non-Windows platforms.
func fixLongPath(path string) string {
	return path
}

func rename(oldname, newname string) error {
	fi, err := Lstat(newname)
	if err == nil && fi.IsDir() {
		// There are two independent errors this function can return:
		// one for a bad oldname, and one for a bad newname.
		// At this point we've determined the newname is bad.

	readdirName readdirMode = iota
	readdirDirEntry
	readdirFileInfo
)

// Readdir reads the contents of the directory associated with file and
// returns a slice of up to n [FileInfo] values, as would be returned
// by [Lstat], in directory order. Subsequent calls on the same file will yield
// further FileInfos.
//
// If n > 0, Readdir returns at most n FileInfo structures. In this case, if

// File represents an open file descriptor.
//
// The methods of File are safe for concurrent use.
type File struct {
	*file // os specific
}

// A FileInfo describes a file and is returned by [Stat] and [Lstat].
type FileInfo = fs.FileInfo

// A FileMode represents a file's mode and permission bits.
// The bits have the same definition on all systems, so that
// information about files can be moved from one system