127 			const struct iovec *iov = iter_iov(i);	\
131 						iov, (I))	\
132 			i->nr_segs -= iov - iter_iov(i);	\
133 			i->__iov = iov;				\
285 			const struct iovec *iov, unsigned long nr_segs,  in iov_iter_init()  argument
295 		.__iov = iov,  in iov_iter_init()
625 	const struct iovec *iov, *end;  in iov_iter_iovec_advance()  local
632 	for (iov = iter_iov(i), end = iov + i->nr_segs; iov < end; iov++) {  in iov_iter_iovec_advance()
633 		if (likely(size < iov->iov_len))  in iov_iter_iovec_advance()
635 		size -= iov->iov_len;  in iov_iter_iovec_advance()
638 	i->nr_segs -= iov - iter_iov(i);  in iov_iter_iovec_advance()
639 	i->__iov = iov;  in iov_iter_iovec_advance()
692 		const struct iovec *iov = iter_iov(i);  in iov_iter_revert()  local
694 			size_t n = (--iov)->iov_len;  in iov_iter_revert()
697 				i->__iov = iov;  in iov_iter_revert()
815 		const struct iovec *iov = iter_iov(i) + k;  in iov_iter_aligned_iovec()  local
816 		size_t len = iov->iov_len - skip;  in iov_iter_aligned_iovec()
822 		if ((unsigned long)(iov->iov_base + skip) & addr_mask)  in iov_iter_aligned_iovec()
902 		const struct iovec *iov = iter_iov(i) + k;  in iov_iter_alignment_iovec()  local
903 		size_t len = iov->iov_len - skip;  in iov_iter_alignment_iovec()
905 			res |= (unsigned long)iov->iov_base + skip;  in iov_iter_alignment_iovec()
974 		const struct iovec *iov = iter_iov(i) + k;  in iov_iter_gap_alignment()  local
975 		if (iov->iov_len) {  in iov_iter_gap_alignment()
976 			unsigned long base = (unsigned long)iov->iov_base;  in iov_iter_gap_alignment()
979 			v = base + iov->iov_len;  in iov_iter_gap_alignment()
980 			if (size <= iov->iov_len)  in iov_iter_gap_alignment()
982 			size -= iov->iov_len;  in iov_iter_gap_alignment()
1068 		const struct iovec *iov = iter_iov(i) + k;  in first_iovec_segment()  local
1069 		size_t len = iov->iov_len - skip;  in first_iovec_segment()
1075 		return (unsigned long)iov->iov_base + skip;  in first_iovec_segment()
1333 static __noclone int copy_compat_iovec_from_user(struct iovec *iov,  in copy_compat_iovec_from_user()  argument
1355 		iov[i].iov_base = compat_ptr(buf);  in copy_compat_iovec_from_user()
1356 		iov[i].iov_len = len;  in copy_compat_iovec_from_user()
1365 static __noclone int copy_iovec_from_user(struct iovec *iov,  in copy_iovec_from_user()  argument
1385 		iov->iov_base = buf;  in copy_iovec_from_user()
1386 		iov->iov_len = len;  in copy_iovec_from_user()
1388 		uiov++; iov++;  in copy_iovec_from_user()
1401 	struct iovec *iov = fast_iov;  in iovec_from_user()  local
1410 		return iov;  in iovec_from_user()
1414 		iov = kmalloc_array(nr_segs, sizeof(struct iovec), GFP_KERNEL);  in iovec_from_user()
1415 		if (!iov)  in iovec_from_user()
1420 		ret = copy_compat_iovec_from_user(iov, uvec, nr_segs);  in iovec_from_user()
1422 		ret = copy_iovec_from_user(iov, uvec, nr_segs);  in iovec_from_user()
1424 		if (iov != fast_iov)  in iovec_from_user()
1425 			kfree(iov);  in iovec_from_user()
1429 	return iov;  in iovec_from_user()
1439 	struct iovec *iov = *iovp;  in __import_iovec_ubuf()  local
1443 		ret = copy_compat_iovec_from_user(iov, uvec, 1);  in __import_iovec_ubuf()
1445 		ret = copy_iovec_from_user(iov, uvec, 1);  in __import_iovec_ubuf()
1449 	ret = import_ubuf(type, iov->iov_base, iov->iov_len, i);  in __import_iovec_ubuf()
1462 	struct iovec *iov;  in __import_iovec()  local
1467 	iov = iovec_from_user(uvec, nr_segs, fast_segs, *iovp, compat);  in __import_iovec()
1468 	if (IS_ERR(iov)) {  in __import_iovec()
1470 		return PTR_ERR(iov);  in __import_iovec()
1482 		ssize_t len = (ssize_t)iov[seg].iov_len;  in __import_iovec()
1484 		if (!access_ok(iov[seg].iov_base, len)) {  in __import_iovec()
1485 			if (iov != *iovp)  in __import_iovec()
1486 				kfree(iov);  in __import_iovec()
1493 			iov[seg].iov_len = len;  in __import_iovec()
1498 	iov_iter_init(i, type, iov, nr_segs, total_len);  in __import_iovec()
1499 	if (iov == *iovp)  in __import_iovec()
1502 		*iovp = iov;  in __import_iovec()
1538 		 struct iovec *iov, struct iov_iter *i)  in import_single_range()  argument