637 unsigned long iov_shorten(struct iovec *iov, unsigned long nr_segs, size_t to)  in iov_shorten()  argument
642 	while (seg < nr_segs) {  in iov_shorten()
656 		unsigned long nr_segs, size_t len, loff_t *ppos, iter_fn_t fn)  in do_iter_readv_writev()  argument
666 	iov_iter_init(&iter, rw, iov, nr_segs, len);  in do_iter_readv_writev()
675 		unsigned long nr_segs, size_t len, loff_t *ppos, iov_fn_t fn)  in do_sync_readv_writev()  argument
684 	ret = fn(&kiocb, iov, nr_segs, kiocb.ki_pos);  in do_sync_readv_writev()
693 		unsigned long nr_segs, loff_t *ppos, io_fn_t fn)  in do_loop_readv_writev()  argument
698 	while (nr_segs > 0) {  in do_loop_readv_writev()
706 		nr_segs--;  in do_loop_readv_writev()
727 			      unsigned long nr_segs, unsigned long fast_segs,  in rw_copy_check_uvector()  argument
740 	if (nr_segs == 0) {  in rw_copy_check_uvector()
749 	if (nr_segs > UIO_MAXIOV) {  in rw_copy_check_uvector()
753 	if (nr_segs > fast_segs) {  in rw_copy_check_uvector()
754 		iov = kmalloc(nr_segs*sizeof(struct iovec), GFP_KERNEL);  in rw_copy_check_uvector()
760 	if (copy_from_user(iov, uvector, nr_segs*sizeof(*uvector))) {  in rw_copy_check_uvector()
775 	for (seg = 0; seg < nr_segs; seg++) {  in rw_copy_check_uvector()
803 			       unsigned long nr_segs, loff_t *pos)  in do_readv_writev()  argument
813 	ret = rw_copy_check_uvector(type, uvector, nr_segs,  in do_readv_writev()
836 		ret = do_iter_readv_writev(file, type, iov, nr_segs, tot_len,  in do_readv_writev()
839 		ret = do_sync_readv_writev(file, iov, nr_segs, tot_len,  in do_readv_writev()
842 		ret = do_loop_readv_writev(file, iov, nr_segs, pos, fn);  in do_readv_writev()
983 			       unsigned long nr_segs, loff_t *pos)  in compat_do_readv_writev()  argument
993 	ret = compat_rw_copy_check_uvector(type, uvector, nr_segs,  in compat_do_readv_writev()
1016 		ret = do_iter_readv_writev(file, type, iov, nr_segs, tot_len,  in compat_do_readv_writev()
1019 		ret = do_sync_readv_writev(file, iov, nr_segs, tot_len,  in compat_do_readv_writev()
1022 		ret = do_loop_readv_writev(file, iov, nr_segs, pos, fn);  in compat_do_readv_writev()