Zero fill bug fix

storagedriver/s3/s3.go

@@ -355,14 +355,6 @@ func (d *Driver) WriteStream(path string, offset int64, reader io.Reader) (total
 						return totalRead, err
 					}
 
-					part, err = multi.PutPart(int(partNumber), bytes.NewReader(buf))
-					if err != nil {
-						return totalRead, err
-					}
-
-					parts = append(parts, part)
-					partNumber++
-
 					if totalRead+offset < chunkSize {
 						return totalRead, nil
 					}
@@ -393,14 +385,6 @@ func (d *Driver) WriteStream(path string, offset int64, reader io.Reader) (total
 						return totalRead, err
 					}
 
-					part, err = multi.PutPart(int(partNumber), bytes.NewReader(buf))
-					if err != nil {
-						return totalRead, err
-					}
-
-					parts = append(parts, part)
-					partNumber++
-
 					if totalRead+(offset%chunkSize) < chunkSize {
 						return totalRead, nil
 					}

storagedriver/testsuites/testsuites.go

@@ -774,6 +774,7 @@ func (suite *DriverSuite) TestEventualConsistency(c *check.C) {
 	defer suite.StorageDriver.Delete(firstPart(filename))
 
 	var offset int64
+	var misswrites int
 	var chunkSize int64 = 32
 
 	for i := 0; i < 1024; i++ {
@@ -795,8 +796,12 @@ func (suite *DriverSuite) TestEventualConsistency(c *check.C) {
 
 			reader.Close()
 			offset += read
+		} else {
+			misswrites++
 		}
 	}
+
+	c.Assert(misswrites, check.Not(check.Equals), 1024)
 }
 
 // BenchmarkPutGetEmptyFiles benchmarks PutContent/GetContent for 0B files