.

wcfs/internal/xbtree/δbtail.go

@@ -170,7 +170,7 @@ type ΔBtail struct {
 //
 // See ΔBtail documentation for details.
 type _ΔTtail struct {
-	// XXX explain about snapshot mode + RCU
+	// XXX explain about snapshot mode + RCU    ->  move most text to overview
 	// ...
 	// XXX text from old rebuild:
 	//	clone vδT before modifying it

wcfs/internal/xbtree/δbtail_test.go

@@ -1679,7 +1679,7 @@ func assertΔTtail(t *testing.T, subj string, δbtail *ΔBtail, tj *xbtreetest.C
 	}
 }
 
-// assertTrack verifies state of .trackSet and ΔTtail.trackNew.
+// assertTrack verifies state of .trackSet and ΔTtail.trackNew.		XXX and .ktrackNew
 // it assumes that only one tree root is being tracked.
 func (δBtail *ΔBtail) assertTrack(t *testing.T, subj string, trackSetOK blib.PPTreeSubSet, trackNewOK blib.PPTreeSubSet) {
 	t.Helper()