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> struct block_device *bdev = target->bt_bdev; > > - stat->result_mask |= STATX_DIOALIGN; > + stat->result_mask |= STATX_DIOALIGN | STATX_DIO_READ_ALIGN; BTW, it would be a crappy userspace which can't handle fields which it did not ask for, e.g. asked for STATX_DIOALIGN, but got STATX_DIOALIGN and STATX_DIO_READ_ALIGN