bdev_can_atomic_write
if (request_mask & STATX_WRITE_ATOMIC && bdev_can_atomic_write(bdev)) {
if (bdev_can_atomic_write(bdev))
return !bdev_can_atomic_write(dev->bdev);
if (!bdev_can_atomic_write(bdev))
if (!bdev_can_atomic_write(bdev))
if (bdev_can_atomic_write(btp->bt_bdev))
if (!bdev_can_atomic_write(bdev))
if (!bdev_can_atomic_write(bdev))