From aac72277fda6ef788bb8d5deaa502ce9b9b6e472 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Wed, 26 Jan 2011 20:06:06 +0000
Subject: rwsem: Move duplicate function prototypes to linux/rwsem.h

All architecture specific rwsem headers carry the same function
prototypes. Just x86 adds asmregparm, which is an empty define on all
other architectures. S390 has a stale rwsem_downgrade_write()
prototype.

Remove the duplicates and add the prototypes to linux/rwsem.h

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: David Howells <dhowells@redhat.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Richard Henderson <rth@twiddle.net>
Acked-by: Tony Luck <tony.luck@intel.com>
Acked-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Paul Mundt <lethal@linux-sh.org>
Acked-by: David Miller <davem@davemloft.net>
Cc: Chris Zankel <chris@zankel.net>
LKML-Reference: <20110126195833.970840140@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 include/linux/rwsem.h | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'include/linux/rwsem.h')

diff --git a/include/linux/rwsem.h b/include/linux/rwsem.h
index 8b9c7e9f6910..f7c957f3165f 100644
--- a/include/linux/rwsem.h
+++ b/include/linux/rwsem.h
@@ -32,6 +32,11 @@ struct rw_semaphore {
 #endif
 };
 
+extern asmregparm struct rw_semaphore *rwsem_down_read_failed(struct rw_semaphore *sem);
+extern asmregparm struct rw_semaphore *rwsem_down_write_failed(struct rw_semaphore *sem);
+extern asmregparm struct rw_semaphore *rwsem_wake(struct rw_semaphore *);
+extern asmregparm struct rw_semaphore *rwsem_downgrade_wake(struct rw_semaphore *sem);
+
 /* Include the arch specific part */
 #include <asm/rwsem.h>
 
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