Automatic merge from submit-queue
Add data structure for managing go routines by name
This PR introduces a data structure for managing go routines by name. It prevents the creation of new go routines if an existing go routine with the same name exists. This will enable parallelization of the designs in https://github.com/kubernetes/kubernetes/issues/20262 and https://github.com/kubernetes/kubernetes/issues/21931 with sufficient protection to prevent starting multiple operations on the same volume.
6596ae0c61