From e5e37458bb69a47a04d10bfb8021388663abead8 Mon Sep 17 00:00:00 2001
From: Kittywhiskers Van Gogh <63189531+kwvg@users.noreply.github.com>
Date: Fri, 7 Jan 2022 13:10:18 +0100
Subject: [PATCH] merge bitcoin#24002: add thread safety lock assertion to
 WriteBlockIndexDB()

---
 src/node/blockstorage.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/node/blockstorage.cpp b/src/node/blockstorage.cpp
index 9c3475e0e7..120b86d23e 100644
--- a/src/node/blockstorage.cpp
+++ b/src/node/blockstorage.cpp
@@ -331,6 +331,7 @@ void BlockManager::Unload()
 
 bool BlockManager::WriteBlockIndexDB()
 {
+    AssertLockHeld(::cs_main);
     std::vector<std::pair<int, const CBlockFileInfo*>> vFiles;
     vFiles.reserve(m_dirty_fileinfo.size());
     for (std::set<int>::iterator it = m_dirty_fileinfo.begin(); it != m_dirty_fileinfo.end();) {