148 static void _build_dev_path(char *buffer, size_t len, const char *dev_name)  in _build_dev_path()  argument
151 	if (strchr(dev_name, '/'))  in _build_dev_path()
152 		snprintf(buffer, len, "%s", dev_name);  in _build_dev_path()
154 		snprintf(buffer, len, "%s/%s", _dm_dir, dev_name);  in _build_dev_path()
250 	if (dmt->dev_name) {  in dm_task_set_name()
251 		dm_free(dmt->dev_name);  in dm_task_set_name()
252 		dmt->dev_name = NULL;  in dm_task_set_name()
298 		dmt->dev_name = new_name;  in dm_task_set_name()
299 	else if (!(dmt->dev_name = dm_strdup(name))) {  in dm_task_set_name()
413 static int _add_dev_node(const char *dev_name, uint32_t major, uint32_t minor,  in _add_dev_node()  argument
430 	snprintf(raw_devname, sizeof(raw_devname), "r%s", dev_name);  in _add_dev_node()
466 	_build_dev_path(path, sizeof(path), dev_name);  in _add_dev_node()
481 				  dev_name);  in _add_dev_node()
491 		log_error("Unable to make device node for '%s'", dev_name);  in _add_dev_node()
509 static int _rm_dev_node(const char *dev_name, int check_udev)  in _rm_dev_node()  argument
518 	snprintf(raw_devname,sizeof(raw_devname),"r%s",dev_name);  in _rm_dev_node()
533 	_build_dev_path(path, sizeof(path), dev_name);  in _rm_dev_node()
542 		log_error("Unable to unlink device node for '%s'", dev_name);  in _rm_dev_node()
645 static int _open_dev_node(const char *dev_name)  in _open_dev_node()  argument
650 	_build_dev_path(path, sizeof(path), dev_name);  in _open_dev_node()
658 int get_dev_node_read_ahead(const char *dev_name, uint32_t *read_ahead)  in get_dev_node_read_ahead()  argument
664 	if (!*dev_name) {  in get_dev_node_read_ahead()
669 	if ((fd = _open_dev_node(dev_name)) < 0)  in get_dev_node_read_ahead()
673 		log_sys_error("BLKRAGET", dev_name);  in get_dev_node_read_ahead()
678 		log_debug("%s: read ahead is %" PRIu32, dev_name, *read_ahead);  in get_dev_node_read_ahead()
687 static int _set_read_ahead(const char *dev_name, uint32_t read_ahead)  in _set_read_ahead()  argument
693 	if (!*dev_name) {  in _set_read_ahead()
698 	if ((fd = _open_dev_node(dev_name)) < 0)  in _set_read_ahead()
701 	log_debug("%s: Setting read ahead to %" PRIu32, dev_name, read_ahead);  in _set_read_ahead()
704 		log_sys_error("BLKRASET", dev_name);  in _set_read_ahead()
714 static int _set_dev_node_read_ahead(const char *dev_name, uint32_t read_ahead,  in _set_dev_node_read_ahead()  argument
726 		if (!get_dev_node_read_ahead(dev_name, &current_read_ahead))  in _set_dev_node_read_ahead()
732 				  dev_name, current_read_ahead, read_ahead);  in _set_dev_node_read_ahead()
737 	return _set_read_ahead(dev_name, read_ahead);  in _set_dev_node_read_ahead()
742 int get_dev_node_read_ahead(const char *dev_name, uint32_t *read_ahead)  in get_dev_node_read_ahead()  argument
749 static int _set_dev_node_read_ahead(const char *dev_name, uint32_t read_ahead,  in _set_dev_node_read_ahead()  argument
763 static int _do_node_op(node_op_t type, const char *dev_name, uint32_t major,  in _do_node_op()  argument
770 		return _add_dev_node(dev_name, major, minor, uid, gid,  in _do_node_op()
773 		return _rm_dev_node(dev_name, check_udev);  in _do_node_op()
775 		return _rename_dev_node(old_name, dev_name, check_udev);  in _do_node_op()
777 		return _set_dev_node_read_ahead(dev_name, read_ahead,  in _do_node_op()
789 	char *dev_name;  member
809 static int _stack_node_op(node_op_t type, const char *dev_name, uint32_t major,  in _stack_node_op()  argument
816 	size_t len = strlen(dev_name) + strlen(old_name) + 2;  in _stack_node_op()
825 			if (!strcmp(dev_name, nop->dev_name)) {  in _stack_node_op()
848 	_store_str(&pos, &nop->dev_name, dev_name);  in _stack_node_op()
863 		_do_node_op(nop->type, nop->dev_name, nop->major, nop->minor,  in _pop_node_ops()
872 int add_dev_node(const char *dev_name, uint32_t major, uint32_t minor,  in add_dev_node()  argument
876 		  dev_name, major, minor, uid, gid, mode);  in add_dev_node()
878 	return _stack_node_op(NODE_ADD, dev_name, major, minor, uid,  in add_dev_node()
890 int rm_dev_node(const char *dev_name, int check_udev)  in rm_dev_node()  argument
892 	log_debug("%s: Stacking NODE_DEL (replaces other stacked ops)", dev_name);  in rm_dev_node()
894 	return _stack_node_op(NODE_DEL, dev_name, 0, 0, 0,  in rm_dev_node()
898 int set_dev_node_read_ahead(const char *dev_name, uint32_t read_ahead,  in set_dev_node_read_ahead()  argument
905 		  ")", dev_name, read_ahead, read_ahead_flags);  in set_dev_node_read_ahead()
907 	return _stack_node_op(NODE_READ_AHEAD, dev_name, 0, 0, 0, 0,  in set_dev_node_read_ahead()