26  * manipulate whole volumes: create, remove, and re-size them. Volume character
664  * verify_rsvol_req - verify volume re-size request.
685  * @req: volumes re-name request
687  * This is a helper function for the volume re-name IOCTL which validates the
697 	struct ubi_rename_entry *re, *re1;  in rename_volumes()  local
736 	/* Create the re-name list */  in rename_volumes()
743 		re = kzalloc(sizeof(struct ubi_rename_entry), GFP_KERNEL);  in rename_volumes()
744 		if (!re) {  in rename_volumes()
749 		re->desc = ubi_open_volume(ubi->ubi_num, vol_id, UBI_METAONLY);  in rename_volumes()
750 		if (IS_ERR(re->desc)) {  in rename_volumes()
751 			err = PTR_ERR(re->desc);  in rename_volumes()
754 			kfree(re);  in rename_volumes()
758 		/* Skip this re-naming if the name does not really change */  in rename_volumes()
759 		if (re->desc->vol->name_len == name_len &&  in rename_volumes()
760 		    !memcmp(re->desc->vol->name, name, name_len)) {  in rename_volumes()
761 			ubi_close_volume(re->desc);  in rename_volumes()
762 			kfree(re);  in rename_volumes()
766 		re->new_name_len = name_len;  in rename_volumes()
767 		memcpy(re->new_name, name, name_len);  in rename_volumes()
768 		list_add_tail(&re->list, &rename_list);  in rename_volumes()
770 			vol_id, re->desc->vol->name, name);  in rename_volumes()
777 	list_for_each_entry(re, &rename_list, list) {  in rename_volumes()
782 		 * Volume @re->vol_id is going to be re-named to  in rename_volumes()
783 		 * @re->new_name, while its current name is @name. If a volume  in rename_volumes()
784 		 * with name @re->new_name currently exists, it has to be  in rename_volumes()
785 		 * removed, unless it is also re-named in the request (@req).  in rename_volumes()
788 			if (re->new_name_len == re1->desc->vol->name_len &&  in rename_volumes()
789 			    !memcmp(re->new_name, re1->desc->vol->name,  in rename_volumes()
800 		 * It seems we need to remove volume with name @re->new_name,  in rename_volumes()
803 		desc = ubi_open_volume_nm(ubi->ubi_num, re->new_name,  in rename_volumes()
808 				/* Re-naming into a non-existing volume name */  in rename_volumes()
813 				re->new_name, err);  in rename_volumes()
836 	list_for_each_entry_safe(re, re1, &rename_list, list) {  in rename_volumes()
837 		ubi_close_volume(re->desc);  in rename_volumes()
838 		list_del(&re->list);  in rename_volumes()
839 		kfree(re);  in rename_volumes()
920 	/* Re-size volume command */  in ubi_cdev_ioctl()
926 		dbg_gen("re-size volume");  in ubi_cdev_ioctl()
953 	/* Re-name volumes command */  in ubi_cdev_ioctl()
958 		dbg_gen("re-name volumes");  in ubi_cdev_ioctl()