From 0eb5adaa6fda00b328c8a6242adb20a5bfeb6959 Mon Sep 17 00:00:00 2001
From: Runxi Yu
Date: Sun, 29 Mar 2026 07:04:01 +0000
Subject: *: Remove Close exception for MT-Safe

---
 format/commitgraph/read/close.go | 2 ++
 furgit.go                        | 3 +--
 object/store/chain/close.go      | 2 ++
 object/store/loose/store.go      | 2 ++
 object/store/memory/store.go     | 2 ++
 object/store/mix/close.go        | 2 ++
 object/store/packed/close.go     | 2 ++
 object/store/reading.go          | 2 ++
 ref/store/chain/close.go         | 2 ++
 ref/store/files/close.go         | 2 ++
 ref/store/reading.go             | 2 ++
 11 files changed, 21 insertions(+), 2 deletions(-)

diff --git a/format/commitgraph/read/close.go b/format/commitgraph/read/close.go
index d91c7762..c13b5f55 100644
--- a/format/commitgraph/read/close.go
+++ b/format/commitgraph/read/close.go
@@ -1,6 +1,8 @@
 package read
 
 // Close releases all mapped commit-graph files.
+//
+// Labels: MT-Unsafe.
 func (reader *Reader) Close() error {
 	var closeErr error
 
diff --git a/furgit.go b/furgit.go
index a43f6d40..4f57e70d 100644
--- a/furgit.go
+++ b/furgit.go
@@ -12,8 +12,7 @@
 //
 // Concurrency labels:
 //
-//   - MT-Safe: safe for concurrent use, excluding Close unless documented
-//     otherwise.
+//   - MT-Safe: safe for concurrent use.
 //   - MT-ReadSafe: safe for concurrent read-only use.
 //   - MT-Unsafe: not safe for concurrent use without external synchronization.
 //
diff --git a/object/store/chain/close.go b/object/store/chain/close.go
index 403e178e..75fa357e 100644
--- a/object/store/chain/close.go
+++ b/object/store/chain/close.go
@@ -1,4 +1,6 @@
 package chain
 
 // Close releases wrapper-local resources.
+//
+// Labels: MT-Unsafe.
 func (chain *Chain) Close() error { return nil }
diff --git a/object/store/loose/store.go b/object/store/loose/store.go
index ac9a4d99..ea466284 100644
--- a/object/store/loose/store.go
+++ b/object/store/loose/store.go
@@ -38,4 +38,6 @@ func New(root *os.Root, algo objectid.Algorithm) (*Store, error) {
 }
 
 // Close releases resources associated with the backend.
+//
+// Labels: MT-Unsafe.
 func (store *Store) Close() error { return nil }
diff --git a/object/store/memory/store.go b/object/store/memory/store.go
index bc6795ab..ff66da50 100644
--- a/object/store/memory/store.go
+++ b/object/store/memory/store.go
@@ -21,6 +21,8 @@ func New(algo objectid.Algorithm) *Store {
 }
 
 // Close closes the in-memory store.
+//
+// Labels: MT-Unsafe.
 func (store *Store) Close() error {
 	return nil
 }
diff --git a/object/store/mix/close.go b/object/store/mix/close.go
index a614e586..51f7aa18 100644
--- a/object/store/mix/close.go
+++ b/object/store/mix/close.go
@@ -1,4 +1,6 @@
 package mix
 
 // Close releases wrapper-local resources.
+//
+// Labels: MT-Unsafe.
 func (mix *Mix) Close() error { return nil }
diff --git a/object/store/packed/close.go b/object/store/packed/close.go
index 6c61e4e6..6ad31aac 100644
--- a/object/store/packed/close.go
+++ b/object/store/packed/close.go
@@ -1,6 +1,8 @@
 package packed
 
 // Close releases mapped pack/index resources associated with the store.
+//
+// Labels: MT-Unsafe.
 func (store *Store) Close() error {
 	store.stateMu.Lock()
 	packs := store.packs
diff --git a/object/store/reading.go b/object/store/reading.go
index 9a487bcf..d27001bf 100644
--- a/object/store/reading.go
+++ b/object/store/reading.go
@@ -54,5 +54,7 @@ type ReadingStore interface {
 	Refresh() error
 
 	// Close releases resources associated with the backend.
+	//
+	// Labels: MT-Unsafe.
 	Close() error
 }
diff --git a/ref/store/chain/close.go b/ref/store/chain/close.go
index 403e178e..75fa357e 100644
--- a/ref/store/chain/close.go
+++ b/ref/store/chain/close.go
@@ -1,4 +1,6 @@
 package chain
 
 // Close releases wrapper-local resources.
+//
+// Labels: MT-Unsafe.
 func (chain *Chain) Close() error { return nil }
diff --git a/ref/store/files/close.go b/ref/store/files/close.go
index 0e5212d0..84a69dab 100644
--- a/ref/store/files/close.go
+++ b/ref/store/files/close.go
@@ -1,6 +1,8 @@
 package files
 
 // Close releases resources associated with the store.
+//
+// Labels: MT-Unsafe.
 func (store *Store) Close() error {
 	return store.commonRoot.Close()
 }
diff --git a/ref/store/reading.go b/ref/store/reading.go
index 66528127..99f8278c 100644
--- a/ref/store/reading.go
+++ b/ref/store/reading.go
@@ -34,5 +34,7 @@ type ReadingStore interface {
 	// Close releases resources associated with the store.
 	//
 	// Transactions and batches borrowing the store are invalid after Close.
+	//
+	// Labels: MT-Unsafe.
 	Close() error
 }
-- 
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