Method activateDevice

plugins/snapshots/devmapper/pool_device.go:295–303

activateDevice activates thin device

(ctx context.Context, info *DeviceInfo)

// activateDevice activates thin device
func (p *PoolDevice) activateDevice(ctx context.Context, info *DeviceInfo) error {
	if err := p.transition(ctx, info.Name, Activating, Activated, func() error {
		return dmsetup.ActivateDevice(p.poolName, info.Name, info.DeviceID, info.Size, "")
	}); err != nil {
		return fmt.Errorf("failed to activate new thin device %q (dev: %d): %w", info.Name, info.DeviceID, err)
	}

	return nil
}

// CreateSnapshotDevice creates and activates new thin-device from parent thin-device (makes snapshot)
func (p *PoolDevice) CreateSnapshotDevice(ctx context.Context, deviceName string, snapshotName string, virtualSizeBytes uint64) (retErr error) {