From: John Hodge <tpg@mutabah.net>
Date: Sat, 27 Sep 2014 05:34:39 +0000 (+0800)
Subject: Kernel - Minor fix to logic in rwlock
X-Git-Url: https://git.ucc.asn.au/?a=commitdiff_plain;h=641a3c5a09b61973431c5772333f65eeb76e76c0;p=tpg%2Facess2.git

Kernel - Minor fix to logic in rwlock
---

diff --git a/KernelLand/Kernel/rwlock.c b/KernelLand/Kernel/rwlock.c
index c39ce10a..1fd64592 100644
--- a/KernelLand/Kernel/rwlock.c
+++ b/KernelLand/Kernel/rwlock.c
@@ -21,7 +21,8 @@ int RWLock_AcquireRead(tRWLock *Lock)
 	SHORTLOCK( &Lock->Protector );
 	
 	// Check if the lock is already held by a writer
-	if( Lock->Owner )
+	// - OR, there's a writer waiting to write
+	if( Lock->Owner || Lock->WriterWaiting )
 	{
 		LOG("Waiting");
 		Threads_int_Sleep(THREAD_STAT_RWLOCKSLEEP, Lock, 0,