Exemplo n.º 1
0
// Issues the underlying dm remove operation and then waits
// for it to finish.
func (devices *DeviceSet) removeDeviceAndWait(devname string) error {
	var err error

	for i := 0; i < 1000; i++ {
		err = devicemapper.RemoveDevice(devname)
		if err == nil {
			break
		}
		if err != devicemapper.ErrBusy {
			return err
		}

		// If we see EBUSY it may be a transient error,
		// sleep a bit a retry a few times.
		devices.Unlock()
		time.Sleep(10 * time.Millisecond)
		devices.Lock()
	}
	if err != nil {
		return err
	}

	if err := devices.waitRemove(devname); err != nil {
		return err
	}
	return nil
}
Exemplo n.º 2
0
func (devices *DeviceSet) deactivatePool() error {
	log.Debugf("[devmapper] deactivatePool()")
	defer log.Debugf("[devmapper] deactivatePool END")
	devname := devices.getPoolDevName()

	devinfo, err := devicemapper.GetInfo(devname)
	if err != nil {
		return err
	}
	if d, err := devicemapper.GetDeps(devname); err == nil {
		// Access to more Debug output
		log.Debugf("[devmapper] devicemapper.GetDeps() %s: %#v", devname, d)
	}
	if devinfo.Exists != 0 {
		return devicemapper.RemoveDevice(devname)
	}

	return nil
}