280 static int lo_write_bvec(struct file *file, struct bio_vec *bvec, loff_t *ppos)  in lo_write_bvec()  argument
285 	iov_iter_bvec(&i, WRITE, bvec, 1, bvec->bv_len);  in lo_write_bvec()
291 	if (likely(bw ==  bvec->bv_len))  in lo_write_bvec()
296 		(unsigned long long)*ppos, bvec->bv_len);  in lo_write_bvec()
305 	struct bio_vec bvec;  in lo_write_simple()  local
309 	rq_for_each_segment(bvec, rq, iter) {  in lo_write_simple()
310 		ret = lo_write_bvec(lo->lo_backing_file, &bvec, &pos);  in lo_write_simple()
327 	struct bio_vec bvec, b;  in lo_write_transfer()  local
336 	rq_for_each_segment(bvec, rq, iter) {  in lo_write_transfer()
337 		ret = lo_do_transfer(lo, WRITE, page, 0, bvec.bv_page,  in lo_write_transfer()
338 			bvec.bv_offset, bvec.bv_len, pos >> 9);  in lo_write_transfer()
344 		b.bv_len = bvec.bv_len;  in lo_write_transfer()
357 	struct bio_vec bvec;  in lo_read_simple()  local
362 	rq_for_each_segment(bvec, rq, iter) {  in lo_read_simple()
363 		iov_iter_bvec(&i, READ, &bvec, 1, bvec.bv_len);  in lo_read_simple()
368 		flush_dcache_page(bvec.bv_page);  in lo_read_simple()
370 		if (len != bvec.bv_len) {  in lo_read_simple()
386 	struct bio_vec bvec, b;  in lo_read_transfer()  local
397 	rq_for_each_segment(bvec, rq, iter) {  in lo_read_transfer()
402 		b.bv_len = bvec.bv_len;  in lo_read_transfer()
411 		ret = lo_do_transfer(lo, READ, page, 0, bvec.bv_page,  in lo_read_transfer()
412 			bvec.bv_offset, len, offset >> 9);  in lo_read_transfer()
416 		flush_dcache_page(bvec.bv_page);  in lo_read_transfer()
418 		if (len != bvec.bv_len) {  in lo_read_transfer()
511 	kfree(cmd->bvec);  in lo_rw_aio_do_completion()
512 	cmd->bvec = NULL;  in lo_rw_aio_do_completion()
532 	struct bio_vec *bvec;  in lo_rw_aio()  local
546 		bvec = kmalloc_array(nr_bvec, sizeof(struct bio_vec),  in lo_rw_aio()
548 		if (!bvec)  in lo_rw_aio()
550 		cmd->bvec = bvec;  in lo_rw_aio()
559 			*bvec = tmp;  in lo_rw_aio()
560 			bvec++;  in lo_rw_aio()
562 		bvec = cmd->bvec;  in lo_rw_aio()
571 		bvec = __bvec_iter_bvec(bio->bi_io_vec, bio->bi_iter);  in lo_rw_aio()
575 	iov_iter_bvec(&iter, rw, bvec, nr_bvec, blk_rq_bytes(rq));  in lo_rw_aio()