@@ -212,7 +212,7 @@ func (d *Driver) ZfsPath(id string) string {

 }

 func (d *Driver) MountPath(id string) string {

-	return path.Join(d.options.mountPath, "graph", id)

+	return path.Join(d.options.mountPath, "graph", getMountpoint(id))

 }

 func (d *Driver) Create(id string, parent string) error {

@@ -2,6 +2,7 @@ package zfs

 import (

 	"fmt"

+	"strings"

 	"syscall"

 	log "github.com/Sirupsen/logrus"

@@ -22,3 +23,16 @@ func checkRootdirFs(rootdir string) error {

 	return nil

 }

+

+func getMountpoint(id string) string {

+	maxlen := 12

+

+	// we need to preserve filesystem suffix

+	suffix := strings.SplitN(id, "-", 2)

+

+	if len(suffix) > 1 {

+		return id[:maxlen] + "-" + suffix[1]

+	}

+

+	return id[:maxlen]

+}

@@ -21,3 +21,7 @@ func checkRootdirFs(rootdir string) error {

 	return nil

 }

+

+func getMountpoint(id string) string {

+	return id

+}

@@ -5,3 +5,7 @@ package zfs

 func checkRootdirFs(rootdir string) error {

 	return nil

 }

+

+func getMountpoint(id string) string {

+	return id

+}