DFL_DLM_RECOVERY
wait_on_bit(&ls->ls_recover_flags, DFL_DLM_RECOVERY,
set_bit(DFL_DLM_RECOVERY, &ls->ls_recover_flags);
clear_bit(DFL_DLM_RECOVERY, &ls->ls_recover_flags);
wake_up_bit(&ls->ls_recover_flags, DFL_DLM_RECOVERY);