113 	int err;  in vringh_get_head()  local
115 	err = get_user(avail_idx, &vrh->vring.avail->idx);  in vringh_get_head()
116 	if (err)  in vringh_get_head()
117 		return err;  in vringh_get_head()
127 	err = get_user(*head, &vrh->vring.avail->ring[i]);  in vringh_get_head()
128 	if (err)  in vringh_get_head()
129 		return err;  in vringh_get_head()
150 		err(1, "Opening /tmp/vringh_test-file");  in parallel_test()
173 		int status, err, rlen = 0;  in parallel_test()  local
201 					err = vringh_get_head(&vrh, &head);  in parallel_test()
202 					if (err != 0)  in parallel_test()
204 					err = vringh_need_notify_user(&vrh);  in parallel_test()
205 					if (err < 0)  in parallel_test()
207 						     err);  in parallel_test()
208 					if (err) {  in parallel_test()
213 				if (err != 1)  in parallel_test()
225 				err = vringh_getdesc_user(&vrh, &riov, &wiov,  in parallel_test()
228 			if (err == 0) {  in parallel_test()
229 				err = vringh_need_notify_user(&vrh);  in parallel_test()
230 				if (err < 0)  in parallel_test()
232 					     err);  in parallel_test()
233 				if (err) {  in parallel_test()
249 			if (err != 1)  in parallel_test()
250 				errx(1, "vringh_getdesc_user: %i", err);  in parallel_test()
262 				err = vringh_iov_push_user(&wiov, rbuf, rlen);  in parallel_test()
263 				if (err != rlen)  in parallel_test()
265 					     err);  in parallel_test()
267 				written = err;  in parallel_test()
272 			err = vringh_complete_user(&vrh, head, written);  in parallel_test()
273 			if (err != 0)  in parallel_test()
274 				errx(1, "vringh_complete_user: %i", err);  in parallel_test()
277 		err = vringh_need_notify_user(&vrh);  in parallel_test()
278 		if (err < 0)  in parallel_test()
279 			errx(1, "vringh_need_notify_user: %i", err);  in parallel_test()
280 		if (err) {  in parallel_test()
314 			err(1, "Could not set affinity to cpu %u", first_cpu);  in parallel_test()
328 			int *dbuf, err;  in parallel_test()  local
378 				err = virtqueue_add_outbuf(vq, sg, num_sg, dbuf,  in parallel_test()
381 				err = virtqueue_add_inbuf(vq, sg, num_sg,  in parallel_test()
384 			if (err == -ENOSPC) {  in parallel_test()
396 			if (err)  in parallel_test()
397 				errx(1, "virtqueue_add_in/outbuf: %i", err);  in parallel_test()
446 	int err;  in main()  local
493 	err = vringh_getdesc_user(&vrh, &riov, &wiov, getrange, &head);  in main()
494 	if (err != 0)  in main()
495 		errx(1, "vringh_getdesc_user: %i", err);  in main()
508 	err = virtqueue_add_sgs(vq, sgs, 1, 1, &err, GFP_KERNEL);  in main()
509 	if (err)  in main()
510 		errx(1, "virtqueue_add_sgs: %i", err);  in main()
517 	err = vringh_getdesc_user(&vrh, &riov, &wiov, getrange, &head);  in main()
518 	if (err != 1)  in main()
519 		errx(1, "vringh_getdesc_user: %i", err);  in main()
536 	err = vringh_iov_pull_user(&riov, buf, 5);  in main()
537 	if (err != 1)  in main()
538 		errx(1, "vringh_iov_pull_user: %i", err);  in main()
544 	err = vringh_iov_push_user(&wiov, buf, 5);  in main()
545 	if (err != 2)  in main()
546 		errx(1, "vringh_iov_push_user: %i", err);  in main()
552 	err = vringh_complete_user(&vrh, head, err);  in main()
553 	if (err != 0)  in main()
554 		errx(1, "vringh_complete_user: %i", err);  in main()
560 	if (ret != &err)  in main()
577 	err = virtqueue_add_outbuf(vq, guest_sg, RINGSIZE, &err, GFP_KERNEL);  in main()
578 	if (err)  in main()
579 		errx(1, "virtqueue_add_outbuf (large): %i", err);  in main()
586 	err = vringh_getdesc_user(&vrh, &riov, &wiov, getrange, &head);  in main()
587 	if (err != 1)  in main()
588 		errx(1, "vringh_getdesc_user: %i", err);  in main()
602 		err = vringh_iov_pull_user(&riov, buf, 3);  in main()
603 		if (err != 3 && i + err != RINGSIZE * USER_MEM/4)  in main()
604 			errx(1, "vringh_iov_pull_user large: %i", err);  in main()
606 		assert(err < 2 || buf[1] == (char)(i + 1));  in main()
607 		assert(err < 3 || buf[2] == (char)(i + 2));  in main()
616 	err = vringh_complete_multi_user(&vrh, used, 1);  in main()
617 	if (err)  in main()
618 		errx(1, "vringh_complete_multi_user(1): %i", err);  in main()
622 	if (ret != &err)  in main()
629 		err = virtqueue_add_outbuf(vq, guest_sg, 1, &err, GFP_KERNEL);  in main()
630 		if (err)  in main()
631 			errx(1, "virtqueue_add_outbuf (multiple): %i", err);  in main()
639 		err = vringh_getdesc_user(&vrh, &riov, &wiov, getrange, &head);  in main()
640 		if (err != 1)  in main()
641 			errx(1, "vringh_getdesc_user: %i", err);  in main()
647 	err = vringh_complete_multi_user(&vrh, used, RINGSIZE);  in main()
648 	if (err)  in main()
649 		errx(1, "vringh_complete_multi_user: %i", err);  in main()
677 		err = virtqueue_add_outbuf(vq, guest_sg, 4, &err, GFP_KERNEL);  in main()
678 		if (err)  in main()
679 			errx(1, "virtqueue_add_outbuf (indirect): %i", err);  in main()
723 		err = vringh_getdesc_user(&vrh, &riov, &wiov, getrange, &head);  in main()
724 		if (err != 1)  in main()
725 			errx(1, "vringh_getdesc_user: %i", err);  in main()
735 		err = vringh_iov_pull_user(&riov, buf, 29);  in main()
736 		assert(err == 28);  in main()
739 		for (i = 0; i < err; i++)  in main()