From 432cc51cc745158c8e3744f7716a2bf2da1f950d Mon Sep 17 00:00:00 2001
From: Michael Lotz <mmlr@mlotz.ch>
Date: Tue, 20 Oct 2009 19:05:35 +0000
Subject: [PATCH] Add small but very important missing detail. Before blocking
 it didn't set the wait status and therefore would return directly without
 actually blocking.

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@33681 a95241bf-73f2-0310-859d-f6bbb57e9c96
---
 src/system/libroot/os/locks.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/system/libroot/os/locks.cpp b/src/system/libroot/os/locks.cpp
index 355e0a28fd..c6f4c4b6ad 100644
--- a/src/system/libroot/os/locks.cpp
+++ b/src/system/libroot/os/locks.cpp
@@ -5,6 +5,7 @@
 
 #include <locks.h>
 #include <syscalls.h>
+#include <user_thread.h>
 
 #include <OS.h>
 
@@ -77,6 +78,7 @@ rw_lock_wait(rw_lock *lock, bool writer)
 	lock->last_waiter = &waiter;
 
 	// the rw_lock is locked when entering, release it before blocking
+	get_user_thread()->wait_status = 1;
 	mutex_unlock(&lock->lock);
 
 	status_t result;