diff --git a/services/surfaceflinger/FrontEnd/LayerHierarchy.cpp b/services/surfaceflinger/FrontEnd/LayerHierarchy.cpp
index 1e5a6fb..821ac0c 100644
--- a/services/surfaceflinger/FrontEnd/LayerHierarchy.cpp
+++ b/services/surfaceflinger/FrontEnd/LayerHierarchy.cpp
@@ -190,8 +190,12 @@
     return outInvalidRelativeRoot != UNASSIGNED_LAYER_ID;
 }
 
-LayerHierarchyBuilder::LayerHierarchyBuilder(
-        const std::vector<std::unique_ptr<RequestedLayerState>>& layers) {
+void LayerHierarchyBuilder::init(const std::vector<std::unique_ptr<RequestedLayerState>>& layers) {
+    mLayerIdToHierarchy.clear();
+    mHierarchies.clear();
+    mRoot = nullptr;
+    mOffscreenRoot = nullptr;
+
     mHierarchies.reserve(layers.size());
     mLayerIdToHierarchy.reserve(layers.size());
     for (auto& layer : layers) {
@@ -202,6 +206,7 @@
         onLayerAdded(layer.get());
     }
     detachHierarchyFromRelativeParent(&mOffscreenRoot);
+    mInitialized = true;
 }
 
 void LayerHierarchyBuilder::attachToParent(LayerHierarchy* hierarchy) {
@@ -332,7 +337,7 @@
     }
 }
 
-void LayerHierarchyBuilder::update(
+void LayerHierarchyBuilder::doUpdate(
         const std::vector<std::unique_ptr<RequestedLayerState>>& layers,
         const std::vector<std::unique_ptr<RequestedLayerState>>& destroyedLayers) {
     // rebuild map
@@ -381,6 +386,32 @@
     attachHierarchyToRelativeParent(&mRoot);
 }
 
+void LayerHierarchyBuilder::update(LayerLifecycleManager& layerLifecycleManager) {
+    if (!mInitialized) {
+        ATRACE_NAME("LayerHierarchyBuilder:init");
+        init(layerLifecycleManager.getLayers());
+    } else if (layerLifecycleManager.getGlobalChanges().test(
+                       RequestedLayerState::Changes::Hierarchy)) {
+        ATRACE_NAME("LayerHierarchyBuilder:update");
+        doUpdate(layerLifecycleManager.getLayers(), layerLifecycleManager.getDestroyedLayers());
+    } else {
+        return; // nothing to do
+    }
+
+    uint32_t invalidRelativeRoot;
+    bool hasRelZLoop = mRoot.hasRelZLoop(invalidRelativeRoot);
+    while (hasRelZLoop) {
+        ATRACE_NAME("FixRelZLoop");
+        TransactionTraceWriter::getInstance().invoke("relz_loop_detected",
+                                                     /*overwrite=*/false);
+        layerLifecycleManager.fixRelativeZLoop(invalidRelativeRoot);
+        // reinitialize the hierarchy with the updated layer data
+        init(layerLifecycleManager.getLayers());
+        // check if we have any remaining loops
+        hasRelZLoop = mRoot.hasRelZLoop(invalidRelativeRoot);
+    }
+}
+
 const LayerHierarchy& LayerHierarchyBuilder::getHierarchy() const {
     return mRoot;
 }
diff --git a/services/surfaceflinger/FrontEnd/LayerHierarchy.h b/services/surfaceflinger/FrontEnd/LayerHierarchy.h
index ba2e262..a1c73c3 100644
--- a/services/surfaceflinger/FrontEnd/LayerHierarchy.h
+++ b/services/surfaceflinger/FrontEnd/LayerHierarchy.h
@@ -17,6 +17,7 @@
 #pragma once
 
 #include "FrontEnd/LayerCreationArgs.h"
+#include "FrontEnd/LayerLifecycleManager.h"
 #include "RequestedLayerState.h"
 #include "ftl/small_vector.h"
 
@@ -197,9 +198,8 @@
 // hierarchy from a list of RequestedLayerState and associated change flags.
 class LayerHierarchyBuilder {
 public:
-    LayerHierarchyBuilder(const std::vector<std::unique_ptr<RequestedLayerState>>&);
-    void update(const std::vector<std::unique_ptr<RequestedLayerState>>& layers,
-                const std::vector<std::unique_ptr<RequestedLayerState>>& destroyedLayers);
+    LayerHierarchyBuilder() = default;
+    void update(LayerLifecycleManager& layerLifecycleManager);
     LayerHierarchy getPartialHierarchy(uint32_t, bool childrenOnly) const;
     const LayerHierarchy& getHierarchy() const;
     const LayerHierarchy& getOffscreenHierarchy() const;
@@ -213,14 +213,18 @@
     void detachFromRelativeParent(LayerHierarchy*);
     void attachHierarchyToRelativeParent(LayerHierarchy*);
     void detachHierarchyFromRelativeParent(LayerHierarchy*);
-
+    void init(const std::vector<std::unique_ptr<RequestedLayerState>>&);
+    void doUpdate(const std::vector<std::unique_ptr<RequestedLayerState>>& layers,
+                  const std::vector<std::unique_ptr<RequestedLayerState>>& destroyedLayers);
     void onLayerDestroyed(RequestedLayerState* layer);
     void updateMirrorLayer(RequestedLayerState* layer);
     LayerHierarchy* getHierarchyFromId(uint32_t layerId, bool crashOnFailure = true);
+
     std::unordered_map<uint32_t, LayerHierarchy*> mLayerIdToHierarchy;
     std::vector<std::unique_ptr<LayerHierarchy>> mHierarchies;
     LayerHierarchy mRoot{nullptr};
     LayerHierarchy mOffscreenRoot{nullptr};
+    bool mInitialized = false;
 };
 
 } // namespace android::surfaceflinger::frontend