From eacdf1baeb96718095ac3f0cebc44e792653633d Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Sun, 26 Jul 2009 02:21:32 +0200
Subject: [PATCH] x86: Use generic rwsem_spinlocks on -rt

commit 472e73122da0287f9c7a75ba38414eb7c3f105e9 in tip.

Simplifies the separation of anon_rw_semaphores and rw_semaphores for
-rt.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index eb40925..0c6f553 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -124,10 +124,18 @@ config ARCH_MAY_HAVE_PC_FDC
 	def_bool y
 
 config RWSEM_GENERIC_SPINLOCK
-	def_bool !X86_XADD
+	bool
+	depends on !X86_XADD || PREEMPT_RT
+	default y
+
+config ASM_SEMAPHORES
+	bool
+	default y
 
 config RWSEM_XCHGADD_ALGORITHM
-	def_bool X86_XADD
+	bool
+	depends on X86_XADD && !RWSEM_GENERIC_SPINLOCK && !PREEMPT_RT
+	default y
 
 config ARCH_HAS_CPU_IDLE_WAIT
 	def_bool y
-- 
1.7.1.1