13  * manipulate whole volumes: create, remove, and re-size them. Volume character
651  * verify_rsvol_req - verify volume re-size request.
672  * @req: volumes re-name request
674  * This is a helper function for the volume re-name IOCTL which validates the
684 	struct ubi_rename_entry *re, *re1;  in rename_volumes()  local
723 	/* Create the re-name list */  in rename_volumes()
730 		re = kzalloc(sizeof(struct ubi_rename_entry), GFP_KERNEL);  in rename_volumes()
731 		if (!re) {  in rename_volumes()
736 		re->desc = ubi_open_volume(ubi->ubi_num, vol_id, UBI_METAONLY);  in rename_volumes()
737 		if (IS_ERR(re->desc)) {  in rename_volumes()
738 			err = PTR_ERR(re->desc);  in rename_volumes()
741 			kfree(re);  in rename_volumes()
745 		/* Skip this re-naming if the name does not really change */  in rename_volumes()
746 		if (re->desc->vol->name_len == name_len &&  in rename_volumes()
747 		    !memcmp(re->desc->vol->name, name, name_len)) {  in rename_volumes()
748 			ubi_close_volume(re->desc);  in rename_volumes()
749 			kfree(re);  in rename_volumes()
753 		re->new_name_len = name_len;  in rename_volumes()
754 		memcpy(re->new_name, name, name_len);  in rename_volumes()
755 		list_add_tail(&re->list, &rename_list);  in rename_volumes()
757 			vol_id, re->desc->vol->name, name);  in rename_volumes()
764 	list_for_each_entry(re, &rename_list, list) {  in rename_volumes()
769 		 * Volume @re->vol_id is going to be re-named to  in rename_volumes()
770 		 * @re->new_name, while its current name is @name. If a volume  in rename_volumes()
771 		 * with name @re->new_name currently exists, it has to be  in rename_volumes()
772 		 * removed, unless it is also re-named in the request (@req).  in rename_volumes()
775 			if (re->new_name_len == re1->desc->vol->name_len &&  in rename_volumes()
776 			    !memcmp(re->new_name, re1->desc->vol->name,  in rename_volumes()
787 		 * It seems we need to remove volume with name @re->new_name,  in rename_volumes()
790 		desc = ubi_open_volume_nm(ubi->ubi_num, re->new_name,  in rename_volumes()
795 				/* Re-naming into a non-existing volume name */  in rename_volumes()
800 				re->new_name, err);  in rename_volumes()
823 	list_for_each_entry_safe(re, re1, &rename_list, list) {  in rename_volumes()
824 		ubi_close_volume(re->desc);  in rename_volumes()
825 		list_del(&re->list);  in rename_volumes()
826 		kfree(re);  in rename_volumes()
907 	/* Re-size volume command */  in ubi_cdev_ioctl()
913 		dbg_gen("re-size volume");  in ubi_cdev_ioctl()
940 	/* Re-name volumes command */  in ubi_cdev_ioctl()
945 		dbg_gen("re-name volumes");  in ubi_cdev_ioctl()