kubernetes/pkg/volume/csi/expander.go

var _ …

func (c *csiPlugin) RequiresFSResize() bool { … }

func (c *csiPlugin) NodeExpand(resizeOptions volume.NodeResizeOptions) (bool, error) { … }

func (c *csiPlugin) nodeExpandWithClient(
	resizeOptions volume.NodeResizeOptions,
	csiSource *api.CSIPersistentVolumeSource,
	csClient csiClient,
	fsVolume bool) (bool, error) { … }

func inUseError(err error) bool { … }

// IsInfeasibleError returns true for grpc errors that are considered terminal in a way
// that they indicate CSI operation as infeasible.
// This function returns a subset of final errors. All infeasible errors are also final errors.
func isInfeasibleError(err error) bool { … }