Remove container.EnsureMounted

This was deprecated already and all it did was call Mount().
The use of this was a bit confusing since we need to pair Mount/Unmount
calls which wasn't obvious with "EnsureMounted".

Docker-DCO-1.1-Signed-off-by: Alexander Larsson <alexl@redhat.com> (github: alexlarsson)

buildfile.go

@@ -488,7 +488,7 @@ func (b *buildFile) CmdAdd(args string) error {
 	}
 	b.tmpContainers[container.ID] = struct{}{}
 
-	if err := container.EnsureMounted(); err != nil {
+	if err := container.Mount(); err != nil {
 		return err
 	}
 	defer container.Unmount()
@@ -610,7 +610,7 @@ func (b *buildFile) commit(id string, autoCmd []string, comment string) error {
 		b.tmpContainers[container.ID] = struct{}{}
 		fmt.Fprintf(b.outStream, " ---> Running in %s\n", utils.TruncateID(container.ID))
 		id = container.ID
-		if err := container.EnsureMounted(); err != nil {
+		if err := container.Mount(); err != nil {
 			return err
 		}
 		defer container.Unmount()

container.go

@@ -200,7 +200,7 @@ func (settings *NetworkSettings) PortMappingAPI() []APIPort {
 
 // Inject the io.Reader at the given path. Note: do not close the reader
 func (container *Container) Inject(file io.Reader, pth string) error {
-	if err := container.EnsureMounted(); err != nil {
+	if err := container.Mount(); err != nil {
 		return fmt.Errorf("inject: error mounting container %s: %s", container.ID, err)
 	}
 	defer container.Unmount()
@@ -505,7 +505,7 @@ func (container *Container) Start() (err error) {
 			container.cleanup()
 		}
 	}()
-	if err := container.EnsureMounted(); err != nil {
+	if err := container.Mount(); err != nil {
 		return err
 	}
 	if container.runtime.networkManager.disabled {
@@ -1271,7 +1271,7 @@ func (container *Container) Resize(h, w int) error {
 }
 
 func (container *Container) ExportRw() (archive.Archive, error) {
-	if err := container.EnsureMounted(); err != nil {
+	if err := container.Mount(); err != nil {
 		return nil, err
 	}
 	if container.runtime == nil {
@@ -1283,7 +1283,7 @@ func (container *Container) ExportRw() (archive.Archive, error) {
 }
 
 func (container *Container) Export() (archive.Archive, error) {
-	if err := container.EnsureMounted(); err != nil {
+	if err := container.Mount(); err != nil {
 		return nil, err
 	}
 
@@ -1309,12 +1309,6 @@ func (container *Container) WaitTimeout(timeout time.Duration) error {
 	}
 }
 
-func (container *Container) EnsureMounted() error {
-	// FIXME: EnsureMounted is deprecated because drivers are now responsible
-	// for re-entrant mounting in their Get() method.
-	return container.Mount()
-}
-
 func (container *Container) Mount() error {
 	return container.runtime.Mount(container)
 }
@@ -1412,7 +1406,7 @@ func (container *Container) GetSize() (int64, int64) {
 		driver             = container.runtime.driver
 	)
 
-	if err := container.EnsureMounted(); err != nil {
+	if err := container.Mount(); err != nil {
 		utils.Errorf("Warning: failed to compute size of container rootfs %s: %s", container.ID, err)
 		return sizeRw, sizeRootfs
 	}
@@ -1444,7 +1438,7 @@ func (container *Container) GetSize() (int64, int64) {
 }
 
 func (container *Container) Copy(resource string) (archive.Archive, error) {
-	if err := container.EnsureMounted(); err != nil {
+	if err := container.Mount(); err != nil {
 		return nil, err
 	}
 	var filter []string

integration/utils_test.go

@@ -71,7 +71,7 @@ func containerRun(eng *engine.Engine, id string, t utils.Fataler) {
 
 func containerFileExists(eng *engine.Engine, id, dir string, t utils.Fataler) bool {
 	c := getContainer(eng, id, t)
-	if err := c.EnsureMounted(); err != nil {
+	if err := c.Mount(); err != nil {
 		t.Fatal(err)
 	}
 	defer c.Unmount()

runtime.go

@@ -520,7 +520,7 @@ func (runtime *Runtime) Create(config *Config, name string) (*Container, []strin
 func (runtime *Runtime) Commit(container *Container, repository, tag, comment, author string, config *Config) (*Image, error) {
 	// FIXME: freeze the container before copying it to avoid data corruption?
 	// FIXME: this shouldn't be in commands.
-	if err := container.EnsureMounted(); err != nil {
+	if err := container.Mount(); err != nil {
 		return nil, err
 	}
 	defer container.Unmount()