2341 	unsigned zerofrom, offset, len;  in cont_expand_zero()  local
2348 		zerofrom = curpos & ~PAGE_MASK;  in cont_expand_zero()
2349 		if (zerofrom & (blocksize-1)) {  in cont_expand_zero()
2353 		len = PAGE_SIZE - zerofrom;  in cont_expand_zero()
2359 		zero_user(page, zerofrom, len);  in cont_expand_zero()
2377 		zerofrom = curpos & ~PAGE_MASK;  in cont_expand_zero()
2379 		if (offset <= zerofrom) {  in cont_expand_zero()
2382 		if (zerofrom & (blocksize-1)) {  in cont_expand_zero()
2386 		len = offset - zerofrom;  in cont_expand_zero()
2392 		zero_user(page, zerofrom, len);  in cont_expand_zero()
2415 	unsigned int zerofrom;  in cont_write_begin()  local
2422 	zerofrom = *bytes & ~PAGE_MASK;  in cont_write_begin()
2423 	if (pos+len > *bytes && zerofrom & (blocksize-1)) {  in cont_write_begin()