Index: diffdir.py
===================================================================
RCS file: /sources/duplicity/duplicity/duplicity/diffdir.py,v
retrieving revision 1.10
diff -u -r1.10 diffdir.py
--- diffdir.py	13 Aug 2007 18:16:42 -0000	1.10
+++ diffdir.py	5 Sep 2007 22:00:40 -0000
@@ -504,7 +504,7 @@
 
 	def get_data_block(self, fp, max_size):
 		"""Return pair (next data block, boolean last data block)"""
-		buf = fp.read(max_size)
+		buf = fp.read(min(max_size, 64*1024))
 		if len(buf) < max_size:
 			if fp.close(): raise DiffDirException("Error closing file")
 			return (buf, 1)