Fix

Author: MarkCiliaVincenti

src/NHibernate/Util/AsyncReaderWriterLock.cs

@@ -9,7 +9,6 @@ namespace NHibernate.Util
 	// https://devblogs.microsoft.com/pfxteam/building-async-coordination-primitives-part-7-asyncreaderwriterlock/
 	internal class AsyncReaderWriterLock : IDisposable, Cache.ICacheLock
 	{
-		private readonly Lock _writeLockLock = LockFactory.Create();
 		private readonly SemaphoreSlim _writeLockSemaphore = new SemaphoreSlim(1, 1);
 		private readonly SemaphoreSlim _readLockSemaphore = new SemaphoreSlim(0, 1);
 		private readonly Releaser _writerReleaser;
@@ -49,7 +48,7 @@ public Releaser WriteLock()
 			if (!CanEnterWriteLock(out var waitForReadLocks))
 			{
 				_writeLockSemaphore.Wait();
-				lock (_writeLockLock)
+				lock (_writeLockSemaphore)
 				{
 					_writersWaiting--;
 				}
@@ -75,7 +74,7 @@ public async Task<Releaser> WriteLockAsync()
 			if (!CanEnterWriteLock(out var waitForReadLocks))
 			{
 				await _writeLockSemaphore.WaitAsync().ConfigureAwait(false);
-				lock (_writeLockLock)
+				lock (_writeLockSemaphore)
 				{
 					_writersWaiting--;
 				}
@@ -127,7 +126,7 @@ async Task<Releaser> ReadLockInternalAsync()
 
 		public void Dispose()
 		{
-			lock (_writeLockLock)
+			lock (_writeLockSemaphore)
 			{
 				_writeLockSemaphore.Dispose();
 				_readLockSemaphore.Dispose();
@@ -140,7 +139,7 @@ public void Dispose()
 		private bool CanEnterWriteLock(out bool waitForReadLocks)
 		{
 			waitForReadLocks = false;
-			lock (_writeLockLock)
+			lock (_writeLockSemaphore)
 			{
 				AssertNotDisposed();
 				if (_writeLockSemaphore.CurrentCount > 0 && _writeLockSemaphore.Wait(0))
@@ -157,7 +156,7 @@ private bool CanEnterWriteLock(out bool waitForReadLocks)
 
 		private void ExitWriteLock()
 		{
-			lock (_writeLockLock)
+			lock (_writeLockSemaphore)
 			{
 				AssertNotDisposed();
 				if (_writeLockSemaphore.CurrentCount == 1)
@@ -188,7 +187,7 @@ private void ExitWriteLock()
 
 		private bool CanEnterReadLock(out SemaphoreSlim waitingReadLockSemaphore)
 		{
-			lock (_writeLockLock)
+			lock (_writeLockSemaphore)
 			{
 				AssertNotDisposed();
 				if (_writersWaiting == 0 && _writeLockSemaphore.CurrentCount > 0)
@@ -213,7 +212,7 @@ private bool CanEnterReadLock(out SemaphoreSlim waitingReadLockSemaphore)
 
 		private void ExitReadLock()
 		{
-			lock (_writeLockLock)
+			lock (_writeLockSemaphore)
 			{
 				AssertNotDisposed();
 				if (_currentReaders == 0)