From 03c4b2e9880765746bd47520d613515336a3f679 Mon Sep 17 00:00:00 2001
From: chrislu <chris.lu@gmail.com>
Date: Fri, 22 Dec 2023 14:16:23 -0800
Subject: [PATCH] correct lock accounting

possibly fix https://github.com/seaweedfs/seaweedfs/issues/5082
---
 weed/util/lock_table.go | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/weed/util/lock_table.go b/weed/util/lock_table.go
index bf3da7c37..efc4114e7 100644
--- a/weed/util/lock_table.go
+++ b/weed/util/lock_table.go
@@ -132,6 +132,12 @@ func (lt *LockTable[T]) ReleaseLock(key T, lock *ActiveLock) {
 		}
 	}
 
+	if lock.lockType == ExclusiveLock {
+		entry.activeExclusiveLockOwnerCount--
+	} else {
+		entry.activeSharedLockOwnerCount--
+	}
+
 	// If there are no waiters, release the lock
 	if len(entry.waiters) == 0 && entry.activeExclusiveLockOwnerCount <= 0 && entry.activeSharedLockOwnerCount <= 0 {
 		delete(lt.locks, key)
@@ -146,11 +152,6 @@ func (lt *LockTable[T]) ReleaseLock(key T, lock *ActiveLock) {
 			fmt.Printf("\n")
 		}
 	}
-	if lock.lockType == ExclusiveLock {
-		entry.activeExclusiveLockOwnerCount--
-	} else {
-		entry.activeSharedLockOwnerCount--
-	}
 
 	// Notify the next waiter
 	entry.cond.Broadcast()