From 63236ac1c42847c6bcc02c8acb7093ae39774ff5 Mon Sep 17 00:00:00 2001
From: Tobias Weingartner <weingart@cvs.openbsd.org>
Date: Sat, 25 Apr 2009 20:14:44 +0000
Subject: Enter mtx_enter_try.  In part for completeness, things may start
 using this soon(ish).  Ok oga@, sorta yes kettenis@.

---
 sys/arch/hppa64/hppa64/mutex.c | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

(limited to 'sys/arch/hppa64')

diff --git a/sys/arch/hppa64/hppa64/mutex.c b/sys/arch/hppa64/hppa64/mutex.c
index 6fe5b0aa415..93b8f9836c1 100644
--- a/sys/arch/hppa64/hppa64/mutex.c
+++ b/sys/arch/hppa64/hppa64/mutex.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: mutex.c,v 1.1 2007/10/06 14:54:38 kettenis Exp $	*/
+/*	$OpenBSD: mutex.c,v 1.2 2009/04/25 20:14:42 weingart Exp $	*/
 
 /*
  * Copyright (c) 2004 Artur Grabowski <art@openbsd.org>
@@ -54,6 +54,17 @@ mtx_enter(struct mutex *mtx)
 	mtx->mtx_lock = 1;
 }
 
+int
+mtx_enter_try(struct mutex *mtx)
+{
+	if (mtx->mtx_wantipl != IPL_NONE)
+		mtx->mtx_oldipl = _splraise(mtx->mtx_wantipl);
+	MUTEX_ASSERT_UNLOCKED(mtx);
+	mtx->mtx_lock = 1;
+
+	return 1;
+}
+
 void
 mtx_leave(struct mutex *mtx)
 {
-- 
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