.

wcfs/internal/zdata/δftail.go

@@ -224,24 +224,24 @@ func (δFtail *ΔFtail) Track(file *ZBigFile, blk int64, path []btree.LONode, zb
 	}
 	δFtail.δBtail.Track(blk, path)
 
-	root := path[0].(*btree.LOBTree)
-	roid := root.POid()
-	files, ok := δFtail.fileIdx[roid]
+	rootObj := path[0].(*btree.LOBTree)
+	root    := rootObj.POid()
+	files, ok := δFtail.fileIdx[root]
 	if !ok {
 		files = setOid{}
-		δFtail.fileIdx[roid] = files
+		δFtail.fileIdx[root] = files
 	}
 	files.Add(foid)
 
 	δftail, ok := δFtail.byFile[foid]
 	if !ok {
-		δftail = &_ΔFileTail{root: roid, vδE: nil /*will need to be rebuilt to past till tail*/}
+		δftail = &_ΔFileTail{root: root, vδE: nil /*will need to be rebuilt to past till tail*/}
 		δFtail.byFile[foid] = δftail
 		δFtail.trackNew.Add(foid)
 	}
-	if δftail.root != roid {
+	if δftail.root != root {
 		// .root can change during epochs, but in between them it must be stable
-		panicf("BUG: zfile<%s> root mutated from %s -> %s", foid, δftail.root, roid)
+		panicf("BUG: zfile<%s> root mutated from %s -> %s", foid, δftail.root, root)
 	}
 
 
@@ -254,13 +254,13 @@ func (δFtail *ΔFtail) Track(file *ZBigFile, blk int64, path []btree.LONode, zb
 			δFtail.trackSetZBlk[zoid] = zt
 		}
 
-		inblk, ok := zt.inroot[roid]
+		inblk, ok := zt.inroot[root]
 		if !ok {
 			inblk = make(setI64, 1)
 			if zt.inroot == nil {
 				zt.inroot = make(map[zodb.Oid]setI64)
 			}
-			zt.inroot[roid] = inblk
+			zt.inroot[root] = inblk
 		}
 		inblk.Add(blk)
 	}