From 2c8baf448fddacd14c478da0abe30aa45391dff9 Mon Sep 17 00:00:00 2001
From: Andres Freund <andres@anarazel.de>
Date: Thu, 22 Jun 2023 17:27:54 -0700
Subject: [PATCH v2 1/2] Add missing lock releases to vac_truncate_clog()

---
 src/backend/commands/vacuum.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/backend/commands/vacuum.c b/src/backend/commands/vacuum.c
index bb79de4da6a..984c98a5df1 100644
--- a/src/backend/commands/vacuum.c
+++ b/src/backend/commands/vacuum.c
@@ -1902,12 +1902,16 @@ vac_truncate_clog(TransactionId frozenXID,
 		ereport(WARNING,
 				(errmsg("some databases have not been vacuumed in over 2 billion transactions"),
 				 errdetail("You might have already suffered transaction-wraparound data loss.")));
+		LWLockRelease(WrapLimitsVacuumLock);
 		return;
 	}
 
 	/* chicken out if data is bogus in any other way */
 	if (bogus)
+	{
+		LWLockRelease(WrapLimitsVacuumLock);
 		return;
+	}
 
 	/*
 	 * Advance the oldest value for commit timestamps before truncating, so
-- 
2.38.0