From 1bf2a994c22acd4311c79fa203f4cb4945cd5dd3 Mon Sep 17 00:00:00 2001
From: Mikhail Rakhmanov <rakhmanov.m@gmail.com>
Date: Wed, 4 Jun 2025 15:38:51 +0200
Subject: [PATCH] Remove nested locks in treestats collector

---
 commonspace/object/tree/synctree/treestats.go | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/commonspace/object/tree/synctree/treestats.go b/commonspace/object/tree/synctree/treestats.go
index 7effb3d2..9655f13b 100644
--- a/commonspace/object/tree/synctree/treestats.go
+++ b/commonspace/object/tree/synctree/treestats.go
@@ -25,9 +25,13 @@ func (t *TreeStatsCollector) Register(tree *syncTree) {
 
 func (t *TreeStatsCollector) Collect() []TreeStats {
 	t.mutex.Lock()
-	defer t.mutex.Unlock()
-	stats := make([]TreeStats, 0, len(t.trees))
+	trees := make([]*syncTree, 0, len(t.trees))
 	for _, tree := range t.trees {
+		trees = append(trees, tree)
+	}
+	t.mutex.Unlock()
+	stats := make([]TreeStats, 0, len(t.trees))
+	for _, tree := range trees {
 		tree.Lock()
 		stats = append(stats, TreeStats{
 			TreeLen:         tree.Len(),