.

wcfs/wcfs.go

@@ -558,6 +558,8 @@ type Head struct {
 	// it is also kept rlocked by OS cache uploaders (see BigFile.uploadBlk)
 	// with additional locking protocol to avoid deadlocks (see below for
 	// pauseOSCacheUpload + ...).
+	//
+	// TODO head.zheadMu -> special mutex with Lock(ctx) so that Lock wait could be canceled
 	zheadMu sync.RWMutex
 	zconn   *xzodb.ZConn // for head/ zwatcher resyncs head.zconn; others only read zconn objects.
 
@@ -730,16 +732,6 @@ func (_ *zodbCacheControl) PCacheClassify(obj zodb.IPersistent) zodb.PCachePolic
 	return 0
 }
 
-/*
-// -------- zhead lock/wait --------
-
-// XXX needed?
-// TODO head.zheadMu -> special mutex with Lock(ctx) so that Lock wait could be canceled
-func (head *Head) zheadRLock()   { head.zheadMu.RLock() }
-func (head *Head) zheadRUnlock() { head.zheadMu.RUnlock() }
-func (head *Head) zheadLock()    { head.zheadMu.Lock() }
-func (head *Head) zheadUnlock()  { head.zheadMu.Unlock() }
-*/
 
 // -------- 4) ZODB invalidation -> OS cache --------
 
@@ -2076,7 +2068,7 @@ func (bfdir *BigFileDir) lookup(out *fuse.Attr, name string, fctx *fuse.Context)
 	f2, already := bfdir.fileTab[oid]
 	if already {
 		bfdir.fileMu.Unlock()
-		// no need to f.Close() - BigFile is all just garbage-collected
+		// f.Close() not needed - BigFile is all just garbage-collected
 		return f2, nil
 	}