266 static int lo_write_bvec(struct file *file, struct bio_vec *bvec, loff_t *ppos)  in lo_write_bvec()  argument
271 	iov_iter_bvec(&i, ITER_BVEC | WRITE, bvec, 1, bvec->bv_len);  in lo_write_bvec()
277 	if (likely(bw ==  bvec->bv_len))  in lo_write_bvec()
282 		(unsigned long long)*ppos, bvec->bv_len);  in lo_write_bvec()
291 	struct bio_vec bvec;  in lo_write_simple()  local
295 	rq_for_each_segment(bvec, rq, iter) {  in lo_write_simple()
296 		ret = lo_write_bvec(lo->lo_backing_file, &bvec, &pos);  in lo_write_simple()
313 	struct bio_vec bvec, b;  in lo_write_transfer()  local
322 	rq_for_each_segment(bvec, rq, iter) {  in lo_write_transfer()
323 		ret = lo_do_transfer(lo, WRITE, page, 0, bvec.bv_page,  in lo_write_transfer()
324 			bvec.bv_offset, bvec.bv_len, pos >> 9);  in lo_write_transfer()
330 		b.bv_len = bvec.bv_len;  in lo_write_transfer()
343 	struct bio_vec bvec;  in lo_read_simple()  local
348 	rq_for_each_segment(bvec, rq, iter) {  in lo_read_simple()
349 		iov_iter_bvec(&i, ITER_BVEC, &bvec, 1, bvec.bv_len);  in lo_read_simple()
354 		flush_dcache_page(bvec.bv_page);  in lo_read_simple()
356 		if (len != bvec.bv_len) {  in lo_read_simple()
372 	struct bio_vec bvec, b;  in lo_read_transfer()  local
383 	rq_for_each_segment(bvec, rq, iter) {  in lo_read_transfer()
388 		b.bv_len = bvec.bv_len;  in lo_read_transfer()
397 		ret = lo_do_transfer(lo, READ, page, 0, bvec.bv_page,  in lo_read_transfer()
398 			bvec.bv_offset, len, offset >> 9);  in lo_read_transfer()
402 		flush_dcache_page(bvec.bv_page);  in lo_read_transfer()
404 		if (len != bvec.bv_len) {  in lo_read_transfer()
494 	kfree(cmd->bvec);  in lo_rw_aio_do_completion()
495 	cmd->bvec = NULL;  in lo_rw_aio_do_completion()
513 	struct bio_vec *bvec;  in lo_rw_aio()  local
527 		bvec = kmalloc_array(segments, sizeof(struct bio_vec),  in lo_rw_aio()
529 		if (!bvec)  in lo_rw_aio()
531 		cmd->bvec = bvec;  in lo_rw_aio()
540 			*bvec = tmp;  in lo_rw_aio()
541 			bvec++;  in lo_rw_aio()
543 		bvec = cmd->bvec;  in lo_rw_aio()
552 		bvec = __bvec_iter_bvec(bio->bi_io_vec, bio->bi_iter);  in lo_rw_aio()
557 	iov_iter_bvec(&iter, ITER_BVEC | rw, bvec,  in lo_rw_aio()