774 	size_t tot_len;  in do_iter_read()  local
782 	tot_len = iov_iter_count(iter);  in do_iter_read()
783 	if (!tot_len)  in do_iter_read()
785 	ret = rw_verify_area(READ, file, pos, tot_len);  in do_iter_read()
802 	size_t tot_len;  in vfs_iocb_iter_read()  local
812 	tot_len = iov_iter_count(iter);  in vfs_iocb_iter_read()
813 	if (!tot_len)  in vfs_iocb_iter_read()
815 	ret = rw_verify_area(READ, file, &iocb->ki_pos, tot_len);  in vfs_iocb_iter_read()
839 	size_t tot_len;  in do_iter_write()  local
847 	tot_len = iov_iter_count(iter);  in do_iter_write()
848 	if (!tot_len)  in do_iter_write()
850 	ret = rw_verify_area(WRITE, file, pos, tot_len);  in do_iter_write()
866 	size_t tot_len;  in vfs_iocb_iter_write()  local
876 	tot_len = iov_iter_count(iter);  in vfs_iocb_iter_write()
877 	if (!tot_len)  in vfs_iocb_iter_write()
879 	ret = rw_verify_area(WRITE, file, &iocb->ki_pos, tot_len);  in vfs_iocb_iter_write()