acquire_io_lock
status_t result = acquire_io_lock(lun->device, locker, ioLocker);
status_t result = acquire_io_lock(lun->device, locker, ioLocker);
status_t result = acquire_io_lock(lun->device, locker, ioLocker);
status_t result = acquire_io_lock(lun->device, locker, ioLocker);
status_t result = acquire_io_lock(lun->device, locker, ioLocker);