From 7ad414f4bfa74595ee5726e66f3527045c02a977 Mon Sep 17 00:00:00 2001
From: James O'Beirne <james.obeirne@pm.me>
Date: Fri, 18 Jun 2021 14:15:39 -0400
Subject: [PATCH] doc: add comment about CCoinsViewDBCursor constructor

---
 src/txdb.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/txdb.cpp b/src/txdb.cpp
index e6469ee1599..4b76bee5ab8 100644
--- a/src/txdb.cpp
+++ b/src/txdb.cpp
@@ -172,6 +172,8 @@ bool CBlockTreeDB::ReadLastBlockFile(int &nFile) {
 class CCoinsViewDBCursor: public CCoinsViewCursor
 {
 public:
+    // Prefer using CCoinsViewDB::Cursor() since we want to perform some
+    // cache warmup on instantiation.
     CCoinsViewDBCursor(CDBIterator* pcursorIn, const uint256&hashBlockIn):
         CCoinsViewCursor(hashBlockIn), pcursor(pcursorIn) {}
     ~CCoinsViewDBCursor() {}