63 	__u64 n;  in ubd_test_bit()  local
67 	n = bit / bits;  in ubd_test_bit()
69 	return (data[n] & (1 << off)) != 0;  in ubd_test_bit()
74 	__u64 n;  in ubd_set_bit()  local
78 	n = bit / bits;  in ubd_set_bit()
80 	data[n] |= (1 << off);  in ubd_set_bit()
244 	int n = -1;  in parse_unit()  local
247 		n = simple_strtoul(str, &end, 0);  in parse_unit()
253 		n = *str - 'a';  in parse_unit()
257 	return n;  in parse_unit()
269 	int n, err = 0, i;  in ubd_setup_common()  local
272 	n = *str;  in ubd_setup_common()
273 	if(n == '='){  in ubd_setup_common()
306 	n = parse_unit(&str);  in ubd_setup_common()
307 	if(n < 0){  in ubd_setup_common()
311 	if(n >= MAX_DEV){  in ubd_setup_common()
319 	ubd_dev = &ubd_devs[n];  in ubd_setup_common()
326 		*index_out = n;  in ubd_setup_common()
453 	int n;  in ubd_handler()  local
456 		n = os_read_file(thread_fd, &req,  in ubd_handler()
458 		if(n != sizeof(req)){  in ubd_handler()
459 			if(n == -EAGAIN)  in ubd_handler()
462 			       "err = %d\n", -n);  in ubd_handler()
841 #define ROUND_BLOCK(n) ((n + ((1 << 9) - 1)) & (-1 << 9))  argument
843 static int ubd_add(int n, char **error_out)  in ubd_add()  argument
845 	struct ubd *ubd_dev = &ubd_devs[n];  in ubd_add()
872 	err = ubd_disk_register(UBD_MAJOR, ubd_dev->size, n, &ubd_gendisk[n]);  in ubd_add()
879 		ubd_disk_register(fake_major, ubd_dev->size, n,  in ubd_add()
880 				  &fake_gendisk[n]);  in ubd_add()
887 		make_ide_entries(ubd_gendisk[n]->disk_name);  in ubd_add()
900 	int n, ret;  in ubd_config()  local
912 	ret = ubd_setup_common(str, &n, error_out);  in ubd_config()
916 	if (n == -1) {  in ubd_config()
922 	ret = ubd_add(n, error_out);  in ubd_config()
924 		ubd_devs[n].file = NULL;  in ubd_config()
938 	int n, len = 0;  in ubd_get_config()  local
940 	n = parse_unit(&name);  in ubd_get_config()
941 	if((n >= MAX_DEV) || (n < 0)){  in ubd_get_config()
946 	ubd_dev = &ubd_devs[n];  in ubd_get_config()
969 	int n;  in ubd_id()  local
971 	n = parse_unit(str);  in ubd_id()
974 	return n;  in ubd_id()
977 static int ubd_remove(int n, char **error_out)  in ubd_remove()  argument
979 	struct gendisk *disk = ubd_gendisk[n];  in ubd_remove()
985 	ubd_dev = &ubd_devs[n];  in ubd_remove()
995 	ubd_gendisk[n] = NULL;  in ubd_remove()
1001 	if(fake_gendisk[n] != NULL){  in ubd_remove()
1002 		del_gendisk(fake_gendisk[n]);  in ubd_remove()
1003 		put_disk(fake_gendisk[n]);  in ubd_remove()
1004 		fake_gendisk[n] = NULL;  in ubd_remove()
1257 	int n = os_write_file(thread_fd, &io_req,  in submit_request()  local
1259 	if (n != sizeof(io_req)) {  in submit_request()
1260 		if (n != -EAGAIN)  in submit_request()
1262 			       "errno = %d\n", -n);  in submit_request()
1375 	int n;  in update_bitmap()  local
1380 	n = os_seek_file(req->fds[1], req->cow_offset);  in update_bitmap()
1381 	if(n < 0){  in update_bitmap()
1382 		printk("do_io - bitmap lseek failed : err = %d\n", -n);  in update_bitmap()
1386 	n = os_write_file(req->fds[1], &req->bitmap_words,  in update_bitmap()
1388 	if(n != sizeof(req->bitmap_words)){  in update_bitmap()
1389 		printk("do_io - bitmap update failed, err = %d fd = %d\n", -n,  in update_bitmap()
1401 	int n, nsectors, start, end, bit;  in do_io()  local
1407 		n = os_sync_file(req->fds[0]);  in do_io()
1408 		if (n != 0) {  in do_io()
1410 			       "fd = %d\n", -n, req->fds[0]);  in do_io()
1438 			n = 0;  in do_io()
1440 				buf = &buf[n];  in do_io()
1441 				len -= n;  in do_io()
1442 				n = os_read_file(req->fds[bit], buf, len);  in do_io()
1443 				if (n < 0) {  in do_io()
1445 					       "fd = %d\n", -n, req->fds[bit]);  in do_io()
1449 			} while((n < len) && (n != 0));  in do_io()
1450 			if (n < len) memset(&buf[n], 0, len - n);  in do_io()
1452 			n = os_write_file(req->fds[bit], buf, len);  in do_io()
1453 			if(n != len){  in do_io()
1455 				       "fd = %d\n", -n, req->fds[bit]);  in do_io()
1478 	int n;  in io_thread()  local
1483 		n = os_read_file(kernel_fd, &req,  in io_thread()
1485 		if(n != sizeof(struct io_thread_req *)){  in io_thread()
1486 			if(n < 0)  in io_thread()
1488 				       "err = %d\n", kernel_fd, -n);  in io_thread()
1491 				       "length = %d\n", kernel_fd, n);  in io_thread()
1497 		n = os_write_file(kernel_fd, &req,  in io_thread()
1499 		if(n != sizeof(struct io_thread_req *))  in io_thread()
1501 			       kernel_fd, -n);  in io_thread()