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Subject: [PATCH] 2.6.21-rt6
From: Sven-Thorsten Dietrich <sven@thebigcorporation.com>
To: LKML <Linux-kernel@vger.kernel.org>
Cc: Ingo Molnar <mingo@elte.hu>
In-Reply-To: <1179874795.25500.40.camel@sx.thebigcorporation.com>
References: <1179874795.25500.40.camel@sx.thebigcorporation.com>
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Organization: The Big Corporation
Date: Tue, 22 May 2007 16:36:19 -0700
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On Tue, 2007-05-22 at 15:59 -0700, Sven-Thorsten Dietrich wrote:
> Add 
<correct>
> header and export for rt_write_trylock_irqsave.

Disregard the last patch, flags parameter was missing in the header.

Index: linux-2.6.21/include/linux/spinlock.h
===================================================================
--- linux-2.6.21.orig/include/linux/spinlock.h
+++ linux-2.6.21/include/linux/spinlock.h
@@ -294,6 +294,8 @@ do {									\
 extern void __lockfunc rt_write_lock(rwlock_t *rwlock);
 extern void __lockfunc rt_read_lock(rwlock_t *rwlock);
 extern int __lockfunc rt_write_trylock(rwlock_t *rwlock);
+extern int __lockfunc rt_write_trylock_irqsave(rwlock_t *trylock, 
+					       unsigned long *flags);
 extern int __lockfunc rt_read_trylock(rwlock_t *rwlock);
 extern void __lockfunc rt_write_unlock(rwlock_t *rwlock);
 extern void __lockfunc rt_read_unlock(rwlock_t *rwlock);
Index: linux-2.6.21/kernel/rt.c
===================================================================
--- linux-2.6.21.orig/kernel/rt.c
+++ linux-2.6.21/kernel/rt.c
@@ -178,6 +178,7 @@ int __lockfunc rt_write_trylock_irqsave(
 	*flags = 0;
 	return rt_write_trylock(rwlock);
 }
+EXPORT_SYMBOL(rt_write_trylock_irqsave);
 
 int __lockfunc rt_read_trylock(rwlock_t *rwlock)
 {


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