From f2b7c3e6f2e41f33221802438e3cc0590151134d Mon Sep 17 00:00:00 2001
From: vyzo <vyzo@hackzen.org>
Date: Thu, 22 Jul 2021 13:47:40 +0300
Subject: [PATCH] reduce scope of exclusive lock in badger markset

---
 blockstore/splitstore/markset_badger.go | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/blockstore/splitstore/markset_badger.go b/blockstore/splitstore/markset_badger.go
index 5adaadd2e..388478a3e 100644
--- a/blockstore/splitstore/markset_badger.go
+++ b/blockstore/splitstore/markset_badger.go
@@ -82,24 +82,27 @@ func (e *BadgerMarkSetEnv) Close() error {
 
 func (s *BadgerMarkSet) Mark(c cid.Cid) error {
 	s.mx.Lock()
-	defer s.mx.Unlock()
 
 	if s.pend == nil {
+		s.mx.Unlock()
 		return errMarkSetClosed
 	}
 
 	s.pend[string(c.Hash())] = struct{}{}
 
 	if len(s.pend) < badgerMarkSetBatchSize {
+		s.mx.Unlock()
 		return nil
 	}
 
 	pend := s.pend
 	s.pend = make(map[string]struct{})
+	db := s.db
+	s.mx.Unlock()
 
 	empty := []byte{} // not nil
 
-	batch := s.db.NewWriteBatch()
+	batch := db.NewWriteBatch()
 	defer batch.Cancel()
 
 	for k := range pend {