// 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
}
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
}