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authorVincent Ambo <tazjin@google.com>2020-05-22T16·46+0100
committerVincent Ambo <tazjin@google.com>2020-05-22T16·46+0100
commit5229c9b232de5bfa959ad6ebbb4c8192ac513352 (patch)
tree8539e7e23682cac110900f946f034ae44162cacd /third_party/git/replace-object.c
parentf2b211131f2347342dde63975b09cf603149f1a3 (diff)
parent8518a7a51faaf50f830646d4c3585f51236b9349 (diff)
merge(3p/git): Merge git upstream at v2.26.2 r/808
Diffstat (limited to 'third_party/git/replace-object.c')
-rw-r--r--third_party/git/replace-object.c11
1 files changed, 10 insertions, 1 deletions
diff --git a/third_party/git/replace-object.c b/third_party/git/replace-object.c
index e295e8794310..7bd9aba6ee6c 100644
--- a/third_party/git/replace-object.c
+++ b/third_party/git/replace-object.c
@@ -34,14 +34,23 @@ static int register_replace_ref(struct repository *r,
 
 void prepare_replace_object(struct repository *r)
 {
-	if (r->objects->replace_map)
+	if (r->objects->replace_map_initialized)
 		return;
 
+	pthread_mutex_lock(&r->objects->replace_mutex);
+	if (r->objects->replace_map_initialized) {
+		pthread_mutex_unlock(&r->objects->replace_mutex);
+		return;
+	}
+
 	r->objects->replace_map =
 		xmalloc(sizeof(*r->objects->replace_map));
 	oidmap_init(r->objects->replace_map, 0);
 
 	for_each_replace_ref(r, register_replace_ref, NULL);
+	r->objects->replace_map_initialized = 1;
+
+	pthread_mutex_unlock(&r->objects->replace_mutex);
 }
 
 /* We allow "recursive" replacement. Only within reason, though */