Cloned from launchpad blueprint https://blueprints.launchpad.net/nova/+spec/cancel-swap-volume Description: Swap volume feature has been implemented. * https://blueprints.launchpad.net/nova/+spec/volume-swap * https://review.openstack.org/#/c/28995/ While the volume is swapped, no reads or writes should be lost. But it would be taking a long time to swap, it would also be nice to have a cancelling for swap volume. This feature would expose an API to cancel a swap volume.