remove extra async execution

weed/filesys/dirty_pages_mem_chunk.go

@@ -46,8 +46,7 @@ func (pages *MemoryChunkPages) FlushData() error {
 	if !pages.hasWrites {
 		return nil
 	}
-	pages.saveChunkedFileToStorage()
-	pages.writeWaitGroup.Wait()
+	pages.uploadPipeline.FlushAll()
 	if pages.lastErr != nil {
 		return fmt.Errorf("flush data: %v", pages.lastErr)
 	}
@@ -65,41 +64,24 @@ func (pages *MemoryChunkPages) GetStorageOptions() (collection, replication stri
 	return pages.collection, pages.replication
 }
 
-func (pages *MemoryChunkPages) saveChunkedFileToStorage() {
-
-	pages.uploadPipeline.FlushAll()
-
-}
-
 func (pages *MemoryChunkPages) saveChunkedFileIntevalToStorage(reader io.Reader, offset int64, size int64, cleanupFn func()) {
 
 	mtime := time.Now().UnixNano()
-	pages.writeWaitGroup.Add(1)
-	writer := func() {
-		defer pages.writeWaitGroup.Done()
-		defer cleanupFn()
-
-		chunk, collection, replication, err := pages.fh.f.wfs.saveDataAsChunk(pages.fh.f.fullpath())(reader, pages.fh.f.Name, offset)
-		if err != nil {
-			glog.V(0).Infof("%s saveToStorage [%d,%d): %v", pages.fh.f.fullpath(), offset, offset+size, err)
-			pages.lastErr = err
-			return
-		}
-		chunk.Mtime = mtime
-		pages.collection, pages.replication = collection, replication
-		pages.chunkAddLock.Lock()
-		pages.fh.f.addChunks([]*filer_pb.FileChunk{chunk})
-		pages.fh.entryViewCache = nil
-		glog.V(3).Infof("%s saveToStorage %s [%d,%d)", pages.fh.f.fullpath(), chunk.FileId, offset, offset+size)
-		pages.chunkAddLock.Unlock()
-
-	}
+	defer cleanupFn()
 
-	if pages.fh.f.wfs.concurrentWriters != nil {
-		pages.fh.f.wfs.concurrentWriters.Execute(writer)
-	} else {
-		go writer()
+	chunk, collection, replication, err := pages.fh.f.wfs.saveDataAsChunk(pages.fh.f.fullpath())(reader, pages.fh.f.Name, offset)
+	if err != nil {
+		glog.V(0).Infof("%s saveToStorage [%d,%d): %v", pages.fh.f.fullpath(), offset, offset+size, err)
+		pages.lastErr = err
+		return
 	}
+	chunk.Mtime = mtime
+	pages.collection, pages.replication = collection, replication
+	pages.chunkAddLock.Lock()
+	pages.fh.f.addChunks([]*filer_pb.FileChunk{chunk})
+	pages.fh.entryViewCache = nil
+	glog.V(3).Infof("%s saveToStorage %s [%d,%d)", pages.fh.f.fullpath(), chunk.FileId, offset, offset+size)
+	pages.chunkAddLock.Unlock()
 
 }