package graphdriver

import (
	"golang.org/x/sys/unix"
)

var (
	// Slice of drivers that should be used in an order
	priority = []string{
		"zfs",
	}
)

// Mounted checks if the given path is mounted as the fs type
func Mounted(fsType FsMagic, mountPath string) (bool, error) {
	var buf unix.Statfs_t
	if err := unix.Statfs(mountPath, &buf); err != nil {
		return false, err
	}
	return FsMagic(buf.Type) == fsType, nil
}

package graphdriver

import (
	"syscall"
)

var (
	// Slice of drivers that should be used in an order
	priority = []string{
		"zfs",
	}
)

// Mounted checks if the given path is mounted as the fs type
func Mounted(fsType FsMagic, mountPath string) (bool, error) {
	var buf syscall.Statfs_t
	if err := syscall.Statfs(mountPath, &buf); err != nil {
		return false, err
	}
	return FsMagic(buf.Type) == fsType, nil
}

--- 
+++ 
@@ -1,7 +1,7 @@
 package graphdriver
 
 import (
-	"syscall"
+	"golang.org/x/sys/unix"
 )
 
 var (
@@ -13,8 +13,8 @@
 
 // Mounted checks if the given path is mounted as the fs type
 func Mounted(fsType FsMagic, mountPath string) (bool, error) {
-	var buf syscall.Statfs_t
-	if err := syscall.Statfs(mountPath, &buf); err != nil {
+	var buf unix.Statfs_t
+	if err := unix.Statfs(mountPath, &buf); err != nil {
 		return false, err
 	}
 	return FsMagic(buf.Type) == fsType, nil
Use unix.Statfs instead of syscall.Statfs
