320 	size_t tsz;  in read_kcore()  local
355 		tsz = min_t(size_t, buflen, sizeof(struct elfhdr) - *fpos);  in read_kcore()
356 		if (copy_to_user(buffer, (char *)&ehdr + *fpos, tsz)) {  in read_kcore()
361 		buffer += tsz;  in read_kcore()
362 		buflen -= tsz;  in read_kcore()
363 		*fpos += tsz;  in read_kcore()
400 		tsz = min_t(size_t, buflen, phdrs_offset + phdrs_len - *fpos);  in read_kcore()
402 				 tsz)) {  in read_kcore()
409 		buffer += tsz;  in read_kcore()
410 		buflen -= tsz;  in read_kcore()
411 		*fpos += tsz;  in read_kcore()
450 		tsz = min_t(size_t, buflen, notes_offset + notes_len - *fpos);  in read_kcore()
451 		if (copy_to_user(buffer, notes + *fpos - notes_offset, tsz)) {  in read_kcore()
458 		buffer += tsz;  in read_kcore()
459 		buflen -= tsz;  in read_kcore()
460 		*fpos += tsz;  in read_kcore()
468 	if ((tsz = (PAGE_SIZE - (start & ~PAGE_MASK))) > buflen)  in read_kcore()
469 		tsz = buflen;  in read_kcore()
486 			if (clear_user(buffer, tsz)) {  in read_kcore()
492 			if (clear_user(buffer, tsz)) {  in read_kcore()
497 			vread(buf, (char *)start, tsz);  in read_kcore()
499 			if (copy_to_user(buffer, buf, tsz)) {  in read_kcore()
505 			if (copy_to_user(buffer, (char *)start, tsz)) {  in read_kcore()
516 						tsz)) {  in read_kcore()
517 					if (clear_user(buffer, tsz)) {  in read_kcore()
522 					if (copy_to_user(buffer, buf, tsz)) {  in read_kcore()
528 				if (clear_user(buffer, tsz)) {  in read_kcore()
534 		buflen -= tsz;  in read_kcore()
535 		*fpos += tsz;  in read_kcore()
536 		buffer += tsz;  in read_kcore()
537 		start += tsz;  in read_kcore()
538 		tsz = (buflen > PAGE_SIZE ? PAGE_SIZE : buflen);  in read_kcore()