1 files changed, 0 insertions, 88 deletions
diff --git a/lib/btrfs/btrfstree/root.go b/lib/btrfs/btrfstree/root.go
deleted file mode 100644
index ace2b49..0000000
--- a/lib/btrfs/btrfstree/root.go
+++ /dev/null
@@ -1,88 +0,0 @@
-// Copyright (C) 2022-2023  Luke Shumaker <lukeshu@lukeshu.com>
-//
-// SPDX-License-Identifier: GPL-2.0-or-later
-
-package btrfstree
-
-import (
-	"fmt"
-
-	"git.lukeshu.com/btrfs-progs-ng/lib/btrfs/btrfsitem"
-	"git.lukeshu.com/btrfs-progs-ng/lib/btrfs/btrfsprim"
-	"git.lukeshu.com/btrfs-progs-ng/lib/btrfs/btrfsvol"
-)
-
-// A TreeRoot is more-or-less a btrfsitem.Root, but simpler; returned by
-// LookupTreeRoot.
-type TreeRoot struct {
-	TreeID     btrfsprim.ObjID
-	RootNode   btrfsvol.LogicalAddr
-	Level      uint8
-	Generation btrfsprim.Generation
-}
-
-func RootItemSearchFn(treeID btrfsprim.ObjID) func(btrfsprim.Key, uint32) int {
-	return func(key btrfsprim.Key, _ uint32) int {
-		if key.ObjectID == treeID && key.ItemType == btrfsitem.ROOT_ITEM_KEY {
-			return 0
-		}
-		return btrfsprim.Key{
-			ObjectID: treeID,
-			ItemType: btrfsitem.ROOT_ITEM_KEY,
-			Offset:   0,
-		}.Compare(key)
-	}
-}
-
-// LookupTreeRoot is a utility function to help with implementing the 'Trees'
-// interface.
-func LookupTreeRoot(fs TreeOperator, sb Superblock, treeID btrfsprim.ObjID) (*TreeRoot, error) {
-	switch treeID {
-	case btrfsprim.ROOT_TREE_OBJECTID:
-		return &TreeRoot{
-			TreeID:     treeID,
-			RootNode:   sb.RootTree,
-			Level:      sb.RootLevel,
-			Generation: sb.Generation, // XXX: same generation as LOG_TREE?
-		}, nil
-	case btrfsprim.CHUNK_TREE_OBJECTID:
-		return &TreeRoot{
-			TreeID:     treeID,
-			RootNode:   sb.ChunkTree,
-			Level:      sb.ChunkLevel,
-			Generation: sb.ChunkRootGeneration,
-		}, nil
-	case btrfsprim.TREE_LOG_OBJECTID:
-		return &TreeRoot{
-			TreeID:     treeID,
-			RootNode:   sb.LogTree,
-			Level:      sb.LogLevel,
-			Generation: sb.Generation, // XXX: same generation as ROOT_TREE?
-		}, nil
-	case btrfsprim.BLOCK_GROUP_TREE_OBJECTID:
-		return &TreeRoot{
-			TreeID:     treeID,
-			RootNode:   sb.BlockGroupRoot,
-			Level:      sb.BlockGroupRootLevel,
-			Generation: sb.BlockGroupRootGeneration,
-		}, nil
-	default:
-		rootItem, err := fs.TreeSearch(btrfsprim.ROOT_TREE_OBJECTID, RootItemSearchFn(treeID))
-		if err != nil {
-			return nil, err
-		}
-		switch rootItemBody := rootItem.Body.(type) {
-		case *btrfsitem.Root:
-			return &TreeRoot{
-				TreeID:     treeID,
-				RootNode:   rootItemBody.ByteNr,
-				Level:      rootItemBody.Level,
-				Generation: rootItemBody.Generation,
-			}, nil
-		case *btrfsitem.Error:
-			return nil, fmt.Errorf("malformed ROOT_ITEM for tree %v: %w", treeID, rootItemBody.Err)
-		default:
-			panic(fmt.Errorf("should not happen: ROOT_ITEM has unexpected item type: %T", rootItemBody))
-		}
-	}
-}