diff --git a/pkg/devicemapper/devmapper.go b/pkg/devicemapper/devmapper.go
index 63243637a7..dc83e5e742 100644
--- a/pkg/devicemapper/devmapper.go
+++ b/pkg/devicemapper/devmapper.go
@@ -48,7 +48,6 @@ var (
 	ErrTaskSetName          = errors.New("dm_task_set_name failed")
 	ErrTaskSetMessage       = errors.New("dm_task_set_message failed")
 	ErrTaskSetAddNode       = errors.New("dm_task_set_add_node failed")
-	ErrTaskSetRo            = errors.New("dm_task_set_ro failed")
 	ErrTaskAddTarget        = errors.New("dm_task_add_target failed")
 	ErrTaskSetSector        = errors.New("dm_task_set_sector failed")
 	ErrTaskGetDeps          = errors.New("dm_task_get_deps failed")
@@ -199,13 +198,6 @@ func (t *Task) setAddNode(addNode AddNodeType) error {
 	return nil
 }
 
-func (t *Task) setRo() error {
-	if res := DmTaskSetRo(t.unmanaged); res != 1 {
-		return ErrTaskSetRo
-	}
-	return nil
-}
-
 func (t *Task) addTarget(start, size uint64, ttype, params string) error {
 	if res := DmTaskAddTarget(t.unmanaged, start, size,
 		ttype, params); res != 1 {
diff --git a/pkg/devicemapper/devmapper_wrapper.go b/pkg/devicemapper/devmapper_wrapper.go
index 0b88f49695..616c1153fd 100644
--- a/pkg/devicemapper/devmapper_wrapper.go
+++ b/pkg/devicemapper/devmapper_wrapper.go
@@ -74,7 +74,6 @@ var (
 	DmTaskSetCookie           = dmTaskSetCookieFct
 	DmTaskSetMessage          = dmTaskSetMessageFct
 	DmTaskSetName             = dmTaskSetNameFct
-	DmTaskSetRo               = dmTaskSetRoFct
 	DmTaskSetSector           = dmTaskSetSectorFct
 	DmUdevWait                = dmUdevWaitFct
 	DmUdevSetSyncSupport      = dmUdevSetSyncSupportFct
@@ -132,10 +131,6 @@ func dmTaskSetAddNodeFct(task *cdmTask, addNode AddNodeType) int {
 	return int(C.dm_task_set_add_node((*C.struct_dm_task)(task), C.dm_add_node_t(addNode)))
 }
 
-func dmTaskSetRoFct(task *cdmTask) int {
-	return int(C.dm_task_set_ro((*C.struct_dm_task)(task)))
-}
-
 func dmTaskAddTargetFct(task *cdmTask,
 	start, size uint64, ttype, params string) int {