FAS_SS_DRAINING
fas->f_softstate |= FAS_SS_DRAINING;
fas->f_softstate &= ~FAS_SS_DRAINING;
fas->f_softstate &= ~FAS_SS_DRAINING;
if (fas->f_softstate & FAS_SS_DRAINING) {
if (fas->f_softstate & (FAS_SS_QUIESCED | FAS_SS_DRAINING)) {