2339 	unsigned zerofrom, offset, len;  in cont_expand_zero()  local
2346 		zerofrom = curpos & ~PAGE_MASK;  in cont_expand_zero()
2347 		if (zerofrom & (blocksize-1)) {  in cont_expand_zero()
2351 		len = PAGE_SIZE - zerofrom;  in cont_expand_zero()
2357 		zero_user(page, zerofrom, len);  in cont_expand_zero()
2375 		zerofrom = curpos & ~PAGE_MASK;  in cont_expand_zero()
2377 		if (offset <= zerofrom) {  in cont_expand_zero()
2380 		if (zerofrom & (blocksize-1)) {  in cont_expand_zero()
2384 		len = offset - zerofrom;  in cont_expand_zero()
2390 		zero_user(page, zerofrom, len);  in cont_expand_zero()
2413 	unsigned int zerofrom;  in cont_write_begin()  local
2420 	zerofrom = *bytes & ~PAGE_MASK;  in cont_write_begin()
2421 	if (pos+len > *bytes && zerofrom & (blocksize-1)) {  in cont_write_begin()