134 			i->nr_segs -= iov - i->iov;		\
142 			i->nr_segs -= bvec - i->bvec;		\
150 			i->nr_segs -= kvec - i->kvec;		\
425 			const struct iovec *iov, unsigned long nr_segs,  in iov_iter_init()  argument
435 		.nr_segs = nr_segs,  in iov_iter_init()
865 	for (bvec = i->bvec, end = bvec + i->nr_segs; bvec < end; bvec++) {  in iov_iter_bvec_advance()
871 	i->nr_segs -= bvec - i->bvec;  in iov_iter_bvec_advance()
884 	for (iov = i->iov, end = iov + i->nr_segs; iov < end; iov++) {  in iov_iter_iovec_advance()
890 	i->nr_segs -= iov - i->iov;  in iov_iter_iovec_advance()
957 			i->nr_segs++;  in iov_iter_revert()
969 			i->nr_segs++;  in iov_iter_revert()
986 	if (i->nr_segs > 1) {  in iov_iter_single_seg_count()
997 			const struct kvec *kvec, unsigned long nr_segs,  in iov_iter_kvec()  argument
1005 		.nr_segs = nr_segs,  in iov_iter_kvec()
1013 			const struct bio_vec *bvec, unsigned long nr_segs,  in iov_iter_bvec()  argument
1021 		.nr_segs = nr_segs,  in iov_iter_bvec()
1102 	for (k = 0; k < i->nr_segs; k++, skip = 0) {  in iov_iter_aligned_iovec()
1126 	for (k = 0; k < i->nr_segs; k++, skip = 0) {  in iov_iter_aligned_bvec()
1201 	for (k = 0; k < i->nr_segs; k++, skip = 0) {  in iov_iter_alignment_iovec()
1223 	for (k = 0; k < i->nr_segs; k++, skip = 0) {  in iov_iter_alignment_bvec()
1280 	for (k = 0; k < i->nr_segs; k++) {  in iov_iter_gap_alignment()
1403 	for (k = 0, skip = i->iov_offset; k < i->nr_segs; k++, skip = 0) {  in first_iovec_segment()
1484 			i->nr_segs--;  in __iov_iter_get_pages_alloc()
1672 				    new->nr_segs * sizeof(struct bio_vec),  in dup_iter()
1677 				   new->nr_segs * sizeof(struct iovec),  in dup_iter()
1684 		const struct iovec __user *uvec, unsigned long nr_segs)  in copy_compat_iovec_from_user()  argument
1690 	if (!user_access_begin(uiov, nr_segs * sizeof(*uiov)))  in copy_compat_iovec_from_user()
1693 	for (i = 0; i < nr_segs; i++) {  in copy_compat_iovec_from_user()
1716 		const struct iovec __user *uvec, unsigned long nr_segs)  in copy_iovec_from_user()  argument
1720 	if (copy_from_user(iov, uvec, nr_segs * sizeof(*uvec)))  in copy_iovec_from_user()
1722 	for (seg = 0; seg < nr_segs; seg++) {  in copy_iovec_from_user()
1731 		unsigned long nr_segs, unsigned long fast_segs,  in iovec_from_user()  argument
1742 	if (nr_segs == 0)  in iovec_from_user()
1744 	if (nr_segs > UIO_MAXIOV)  in iovec_from_user()
1746 	if (nr_segs > fast_segs) {  in iovec_from_user()
1747 		iov = kmalloc_array(nr_segs, sizeof(struct iovec), GFP_KERNEL);  in iovec_from_user()
1753 		ret = copy_compat_iovec_from_user(iov, uvec, nr_segs);  in iovec_from_user()
1755 		ret = copy_iovec_from_user(iov, uvec, nr_segs);  in iovec_from_user()
1766 		 unsigned nr_segs, unsigned fast_segs, struct iovec **iovp,  in __import_iovec()  argument
1773 	iov = iovec_from_user(uvec, nr_segs, fast_segs, *iovp, compat);  in __import_iovec()
1787 	for (seg = 0; seg < nr_segs; seg++) {  in __import_iovec()
1804 	iov_iter_init(i, type, iov, nr_segs, total_len);  in __import_iovec()
1835 		 unsigned nr_segs, unsigned fast_segs,  in import_iovec()  argument
1838 	return __import_iovec(type, uvec, nr_segs, fast_segs, iovp, i,  in import_iovec()
1890 		i->bvec -= state->nr_segs - i->nr_segs;  in iov_iter_restore()
1892 		i->iov -= state->nr_segs - i->nr_segs;  in iov_iter_restore()
1893 	i->nr_segs = state->nr_segs;  in iov_iter_restore()