linux_new_encode_dev
tbuf.st_dev = linux_new_encode_dev(buf->st_dev);
tbuf.st_rdev = linux_new_encode_dev(buf->st_rdev);
lbuf.st_dev = linux_new_encode_dev(buf->st_dev);
lbuf.st_rdev = linux_new_encode_dev(buf->st_rdev);