309 static int lo_write_bvec(struct file *file, struct bio_vec *bvec, loff_t *ppos)  in lo_write_bvec()  argument
314 	iov_iter_bvec(&i, WRITE, bvec, 1, bvec->bv_len);  in lo_write_bvec()
320 	if (likely(bw ==  bvec->bv_len))  in lo_write_bvec()
325 		(unsigned long long)*ppos, bvec->bv_len);  in lo_write_bvec()
334 	struct bio_vec bvec;  in lo_write_simple()  local
338 	rq_for_each_segment(bvec, rq, iter) {  in lo_write_simple()
339 		ret = lo_write_bvec(lo->lo_backing_file, &bvec, &pos);  in lo_write_simple()
356 	struct bio_vec bvec, b;  in lo_write_transfer()  local
365 	rq_for_each_segment(bvec, rq, iter) {  in lo_write_transfer()
366 		ret = lo_do_transfer(lo, WRITE, page, 0, bvec.bv_page,  in lo_write_transfer()
367 			bvec.bv_offset, bvec.bv_len, pos >> 9);  in lo_write_transfer()
373 		b.bv_len = bvec.bv_len;  in lo_write_transfer()
386 	struct bio_vec bvec;  in lo_read_simple()  local
391 	rq_for_each_segment(bvec, rq, iter) {  in lo_read_simple()
392 		iov_iter_bvec(&i, READ, &bvec, 1, bvec.bv_len);  in lo_read_simple()
397 		flush_dcache_page(bvec.bv_page);  in lo_read_simple()
399 		if (len != bvec.bv_len) {  in lo_read_simple()
415 	struct bio_vec bvec, b;  in lo_read_transfer()  local
426 	rq_for_each_segment(bvec, rq, iter) {  in lo_read_transfer()
431 		b.bv_len = bvec.bv_len;  in lo_read_transfer()
440 		ret = lo_do_transfer(lo, READ, page, 0, bvec.bv_page,  in lo_read_transfer()
441 			bvec.bv_offset, len, offset >> 9);  in lo_read_transfer()
445 		flush_dcache_page(bvec.bv_page);  in lo_read_transfer()
447 		if (len != bvec.bv_len) {  in lo_read_transfer()
540 	kfree(cmd->bvec);  in lo_rw_aio_do_completion()
541 	cmd->bvec = NULL;  in lo_rw_aio_do_completion()
559 	struct bio_vec *bvec;  in lo_rw_aio()  local
573 		bvec = kmalloc_array(nr_bvec, sizeof(struct bio_vec),  in lo_rw_aio()
575 		if (!bvec)  in lo_rw_aio()
577 		cmd->bvec = bvec;  in lo_rw_aio()
586 			*bvec = tmp;  in lo_rw_aio()
587 			bvec++;  in lo_rw_aio()
589 		bvec = cmd->bvec;  in lo_rw_aio()
598 		bvec = __bvec_iter_bvec(bio->bi_io_vec, bio->bi_iter);  in lo_rw_aio()
602 	iov_iter_bvec(&iter, rw, bvec, nr_bvec, blk_rq_bytes(rq));  in lo_rw_aio()