poll_drive
if (poll_drive(true, FD_RAW_NEED_DISK) == -EINTR)
if (poll_drive(false, 0) == -EINTR)
if (poll_drive(true, FD_RAW_NEED_DISK) == -EINTR)
if (poll_drive(true, FD_RAW_NEED_DISK) == -EINTR)
if (poll_drive(true, FD_RAW_NEED_DISK) == -EINTR)
poll_drive(false, 0);
poll_drive(false, FD_RAW_NEED_DISK);