BLKIF_SHUTDOWN_RUN
if (sc == NULL || sc->sc_shutdown != BLKIF_SHUTDOWN_RUN)
if (sc->sc_shutdown != BLKIF_SHUTDOWN_RUN) {
if (sc->sc_shutdown == BLKIF_SHUTDOWN_RUN) {
if (sc->sc_shutdown == BLKIF_SHUTDOWN_RUN)
sc->sc_shutdown = BLKIF_SHUTDOWN_RUN;
if (sc == NULL || sc->sc_shutdown != BLKIF_SHUTDOWN_RUN) {