missing_devices
if (!sb_rdonly(sb) && fs_info->fs_devices->missing_devices &&
device->fs_devices->missing_devices++;
fs_devices->missing_devices--;
cur_devices->missing_devices--;
fs_devices->missing_devices--;
fs_devices->missing_devices = 0;
fs_devices->missing_devices++;
device->fs_devices->missing_devices++;
device->fs_devices->missing_devices--;
fs_devices->missing_devices++;
fs_devices->missing_devices--;
u64 missing_devices;
missing_devices(card, card_config);