177 	size_t copy;  in _shift_data_right_pages()  local
201 		copy = len;  in _shift_data_right_pages()
202 		if (copy > pgto_base)  in _shift_data_right_pages()
203 			copy = pgto_base;  in _shift_data_right_pages()
204 		if (copy > pgfrom_base)  in _shift_data_right_pages()
205 			copy = pgfrom_base;  in _shift_data_right_pages()
206 		pgto_base -= copy;  in _shift_data_right_pages()
207 		pgfrom_base -= copy;  in _shift_data_right_pages()
212 			memcpy(vto + pgto_base, vfrom + pgfrom_base, copy);  in _shift_data_right_pages()
215 			memmove(vto + pgto_base, vto + pgfrom_base, copy);  in _shift_data_right_pages()
219 	} while ((len -= copy) != 0);  in _shift_data_right_pages()
237 	size_t copy;  in _copy_to_pages()  local
243 		copy = PAGE_CACHE_SIZE - pgbase;  in _copy_to_pages()
244 		if (copy > len)  in _copy_to_pages()
245 			copy = len;  in _copy_to_pages()
248 		memcpy(vto + pgbase, p, copy);  in _copy_to_pages()
251 		len -= copy;  in _copy_to_pages()
255 		pgbase += copy;  in _copy_to_pages()
261 		p += copy;  in _copy_to_pages()
281 	size_t copy;  in _copy_from_pages()  local
287 		copy = PAGE_CACHE_SIZE - pgbase;  in _copy_from_pages()
288 		if (copy > len)  in _copy_from_pages()
289 			copy = len;  in _copy_from_pages()
292 		memcpy(p, vfrom + pgbase, copy);  in _copy_from_pages()
295 		pgbase += copy;  in _copy_from_pages()
300 		p += copy;  in _copy_from_pages()
302 	} while ((len -= copy) != 0);  in _copy_from_pages()
319 	size_t copy, offs;  in xdr_shrink_bufhead()  local
332 			copy = tail->iov_len - len;  in xdr_shrink_bufhead()
334 					tail->iov_base, copy);  in xdr_shrink_bufhead()
337 		copy = len;  in xdr_shrink_bufhead()
338 		if (copy > pglen)  in xdr_shrink_bufhead()
339 			copy = pglen;  in xdr_shrink_bufhead()
340 		offs = len - copy;  in xdr_shrink_bufhead()
342 			copy = 0;  in xdr_shrink_bufhead()
343 		else if (copy > tail->iov_len - offs)  in xdr_shrink_bufhead()
344 			copy = tail->iov_len - offs;  in xdr_shrink_bufhead()
345 		if (copy != 0)  in xdr_shrink_bufhead()
349 					copy);  in xdr_shrink_bufhead()
352 			offs = copy = len - pglen;  in xdr_shrink_bufhead()
353 			if (copy > tail->iov_len)  in xdr_shrink_bufhead()
354 				copy = tail->iov_len;  in xdr_shrink_bufhead()
358 					copy);  in xdr_shrink_bufhead()
368 		copy = len;  in xdr_shrink_bufhead()
370 			copy = pglen;  in xdr_shrink_bufhead()
373 				copy);  in xdr_shrink_bufhead()
395 	size_t copy;  in xdr_shrink_pagelen()  local
412 		copy = len;  in xdr_shrink_pagelen()
417 			copy = tail->iov_len;  in xdr_shrink_pagelen()
421 				copy);  in xdr_shrink_pagelen()