485 			      struct kernel_long_ad *last_ext,  in udf_do_extend_file()  argument
489 	int count = 0, fake = !(last_ext->extLength & UDF_EXTENT_LENGTH_MASK);  in udf_do_extend_file()
503 	if (last_ext->extLength & (sb->s_blocksize - 1)) {  in udf_do_extend_file()
504 		last_ext->extLength =  in udf_do_extend_file()
505 			(last_ext->extLength & UDF_EXTENT_FLAG_MASK) |  in udf_do_extend_file()
506 			(((last_ext->extLength & UDF_EXTENT_LENGTH_MASK) +  in udf_do_extend_file()
514 	if ((last_ext->extLength & UDF_EXTENT_FLAG_MASK) ==  in udf_do_extend_file()
517 		prealloc_loc = last_ext->extLocation;  in udf_do_extend_file()
518 		prealloc_len = last_ext->extLength;  in udf_do_extend_file()
520 		last_ext->extLength = EXT_NOT_RECORDED_NOT_ALLOCATED |  in udf_do_extend_file()
521 			(last_ext->extLength & UDF_EXTENT_LENGTH_MASK);  in udf_do_extend_file()
522 		last_ext->extLocation.logicalBlockNum = 0;  in udf_do_extend_file()
523 		last_ext->extLocation.partitionReferenceNum = 0;  in udf_do_extend_file()
527 	if ((last_ext->extLength & UDF_EXTENT_FLAG_MASK) ==  in udf_do_extend_file()
530 			(last_ext->extLength & UDF_EXTENT_LENGTH_MASK)) >>  in udf_do_extend_file()
535 		last_ext->extLength += add << sb->s_blocksize_bits;  in udf_do_extend_file()
539 		udf_add_aext(inode, last_pos, &last_ext->extLocation,  in udf_do_extend_file()
540 			     last_ext->extLength, 1);  in udf_do_extend_file()
543 		udf_write_aext(inode, last_pos, &last_ext->extLocation,  in udf_do_extend_file()
544 				last_ext->extLength, 1);  in udf_do_extend_file()
551 	last_ext->extLocation.logicalBlockNum = 0;  in udf_do_extend_file()
552 	last_ext->extLocation.partitionReferenceNum = 0;  in udf_do_extend_file()
554 	last_ext->extLength = EXT_NOT_RECORDED_NOT_ALLOCATED |  in udf_do_extend_file()
560 		err = udf_add_aext(inode, last_pos, &last_ext->extLocation,  in udf_do_extend_file()
561 				   last_ext->extLength, 1);  in udf_do_extend_file()
567 		last_ext->extLength = EXT_NOT_RECORDED_NOT_ALLOCATED |  in udf_do_extend_file()
569 		err = udf_add_aext(inode, last_pos, &last_ext->extLocation,  in udf_do_extend_file()
570 				   last_ext->extLength, 1);  in udf_do_extend_file()
583 		last_ext->extLocation = prealloc_loc;  in udf_do_extend_file()
584 		last_ext->extLength = prealloc_len;  in udf_do_extend_file()