167 	size_t skip, copy, left, wanted;  in copy_page_to_iter_iovec()  local
183 	copy = min(bytes, iov->iov_len - skip);  in copy_page_to_iter_iovec()
185 	if (IS_ENABLED(CONFIG_HIGHMEM) && !fault_in_pages_writeable(buf, copy)) {  in copy_page_to_iter_iovec()
190 		left = copyout(buf, from, copy);  in copy_page_to_iter_iovec()
191 		copy -= left;  in copy_page_to_iter_iovec()
192 		skip += copy;  in copy_page_to_iter_iovec()
193 		from += copy;  in copy_page_to_iter_iovec()
194 		bytes -= copy;  in copy_page_to_iter_iovec()
199 			copy = min(bytes, iov->iov_len);  in copy_page_to_iter_iovec()
200 			left = copyout(buf, from, copy);  in copy_page_to_iter_iovec()
201 			copy -= left;  in copy_page_to_iter_iovec()
202 			skip = copy;  in copy_page_to_iter_iovec()
203 			from += copy;  in copy_page_to_iter_iovec()
204 			bytes -= copy;  in copy_page_to_iter_iovec()
211 		buf += copy;  in copy_page_to_iter_iovec()
213 		copy = min(bytes, iov->iov_len - skip);  in copy_page_to_iter_iovec()
219 	left = copyout(buf, from, copy);  in copy_page_to_iter_iovec()
220 	copy -= left;  in copy_page_to_iter_iovec()
221 	skip += copy;  in copy_page_to_iter_iovec()
222 	from += copy;  in copy_page_to_iter_iovec()
223 	bytes -= copy;  in copy_page_to_iter_iovec()
227 		copy = min(bytes, iov->iov_len);  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()
230 		skip = copy;  in copy_page_to_iter_iovec()
231 		from += copy;  in copy_page_to_iter_iovec()
232 		bytes -= copy;  in copy_page_to_iter_iovec()
251 	size_t skip, copy, left, wanted;  in copy_page_from_iter_iovec()  local
267 	copy = min(bytes, iov->iov_len - skip);  in copy_page_from_iter_iovec()
269 	if (IS_ENABLED(CONFIG_HIGHMEM) && !fault_in_pages_readable(buf, copy)) {  in copy_page_from_iter_iovec()
274 		left = copyin(to, buf, copy);  in copy_page_from_iter_iovec()
275 		copy -= left;  in copy_page_from_iter_iovec()
276 		skip += copy;  in copy_page_from_iter_iovec()
277 		to += copy;  in copy_page_from_iter_iovec()
278 		bytes -= copy;  in copy_page_from_iter_iovec()
283 			copy = min(bytes, iov->iov_len);  in copy_page_from_iter_iovec()
284 			left = copyin(to, buf, copy);  in copy_page_from_iter_iovec()
285 			copy -= left;  in copy_page_from_iter_iovec()
286 			skip = copy;  in copy_page_from_iter_iovec()
287 			to += copy;  in copy_page_from_iter_iovec()
288 			bytes -= copy;  in copy_page_from_iter_iovec()
295 		buf += copy;  in copy_page_from_iter_iovec()
297 		copy = min(bytes, iov->iov_len - skip);  in copy_page_from_iter_iovec()
303 	left = copyin(to, buf, copy);  in copy_page_from_iter_iovec()
304 	copy -= left;  in copy_page_from_iter_iovec()
305 	skip += copy;  in copy_page_from_iter_iovec()
306 	to += copy;  in copy_page_from_iter_iovec()
307 	bytes -= copy;  in copy_page_from_iter_iovec()
311 		copy = min(bytes, iov->iov_len);  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()
314 		skip = copy;  in copy_page_from_iter_iovec()
315 		to += copy;  in copy_page_from_iter_iovec()
316 		bytes -= copy;  in copy_page_from_iter_iovec()