46 		unsigned left;					\
52 		left = (STEP);					\
54 		len -= left;					\
62 		if (left)					\
82 		unsigned left;					\
95 			left = (STEP);				\
97 			len -= left;				\
100 			if (left || n == 0)			\
176 	size_t skip, copy, left, wanted;  in copy_page_to_iter_iovec()  local
199 		left = copyout(buf, from, copy);  in copy_page_to_iter_iovec()
200 		copy -= left;  in copy_page_to_iter_iovec()
205 		while (unlikely(!left && bytes)) {  in copy_page_to_iter_iovec()
209 			left = copyout(buf, from, copy);  in copy_page_to_iter_iovec()
210 			copy -= left;  in copy_page_to_iter_iovec()
228 	left = copyout(buf, from, copy);  in copy_page_to_iter_iovec()
229 	copy -= left;  in copy_page_to_iter_iovec()
233 	while (unlikely(!left && bytes)) {  in copy_page_to_iter_iovec()
237 		left = copyout(buf, from, copy);  in copy_page_to_iter_iovec()
238 		copy -= left;  in copy_page_to_iter_iovec()
260 	size_t skip, copy, left, wanted;  in copy_page_from_iter_iovec()  local
283 		left = copyin(to, buf, copy);  in copy_page_from_iter_iovec()
284 		copy -= left;  in copy_page_from_iter_iovec()
289 		while (unlikely(!left && bytes)) {  in copy_page_from_iter_iovec()
293 			left = copyin(to, buf, copy);  in copy_page_from_iter_iovec()
294 			copy -= left;  in copy_page_from_iter_iovec()
312 	left = copyin(to, buf, copy);  in copy_page_from_iter_iovec()
313 	copy -= left;  in copy_page_from_iter_iovec()
317 	while (unlikely(!left && bytes)) {  in copy_page_from_iter_iovec()
321 		left = copyin(to, buf, copy);  in copy_page_from_iter_iovec()
322 		copy -= left;  in copy_page_from_iter_iovec()
556 	ssize_t left;  in push_pipe()  local
563 	left = size;  in push_pipe()
568 		left -= PAGE_SIZE - off;  in push_pipe()
569 		if (left <= 0) {  in push_pipe()
586 		buf->len = min_t(ssize_t, left, PAGE_SIZE);  in push_pipe()
587 		left -= buf->len;  in push_pipe()
591 		if (left == 0)  in push_pipe()
594 	return size - left;  in push_pipe()
1020 		size_t off = i->iov_offset, left = size;  in pipe_advance()  local
1023 			left += off - pipe->bufs[i_head & p_mask].offset;  in pipe_advance()
1026 			if (left <= buf->len)  in pipe_advance()
1028 			left -= buf->len;  in pipe_advance()
1032 		i->iov_offset = buf->offset + left;  in pipe_advance()