.

wcfs/wcfs.go

@@ -2064,6 +2064,10 @@ func (root *Root) lookup(name string, fctx *fuse.Context) (_ *Head, err error) {
 	}
 
 	revDir = &Head{
+		// XXX how to test forgets:
+		// echo 2 >/proc/sys/vm/drop_caches	(root)
+		// mount -oremount $mntpt		(root ?)
+		// notify invalidate dentry from inside fs
 		fsNode: newFSNode(&fsOptions{Sticky: false}),	// XXX + Head.OnForget() -> del root.revTab[]
 		rev:    rev,
 		zconn:  zconnRev,	// XXX + Head.OnForget() -> release zconn (= abort zconn.txnCtx)
@@ -2475,6 +2479,7 @@ func _main() (err error) {
 	}
 
 	// wait for unmount
+	// XXX the kernel does not sentd FORGETs on unmount - release left node resources ourselves?
 	<-serveCtx.Done()
 	log.Infof("stop %q %q", mntpt, zurl)
 	return nil	// XXX serveErr | zwatchErr ?