From 76db8bbb09e8df9884e9933bb300e51a8cc93b2e Mon Sep 17 00:00:00 2001
From: zhiqiangxu <652732310@qq.com>
Date: Sat, 6 Jan 2024 21:33:58 +0800
Subject: [PATCH] hole the rlock while reading WriteCell

---
 core/blockstm/mvhashmap.go | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/core/blockstm/mvhashmap.go b/core/blockstm/mvhashmap.go
index 38b075b0d8..003de91e70 100644
--- a/core/blockstm/mvhashmap.go
+++ b/core/blockstm/mvhashmap.go
@@ -222,8 +222,8 @@ func (mv *MVHashMap) Read(k Key, txIdx int) (res MVReadResult) {
 	}
 
 	cells.rw.RLock()
+
 	fk, fv := cells.tm.Floor(txIdx - 1)
-	cells.rw.RUnlock()
 
 	if fk != nil && fv != nil {
 		c := fv.(*WriteCell)
@@ -242,6 +242,8 @@ func (mv *MVHashMap) Read(k Key, txIdx int) (res MVReadResult) {
 		}
 	}
 
+	cells.rw.RUnlock()
+
 	return
 }