From 3013449243adc3421b507696e5d247a3d292ee0c Mon Sep 17 00:00:00 2001
From: Jeff Dike <jdike@addtoit.com>
Date: Fri, 16 Sep 2005 19:28:03 -0700
Subject: [PATCH] [PATCH] uml: UML/i386 cmpxchg fix
Using native cmpxchg offers a slight performance improvement in uml/i386.
Signed-off-by: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---
arch/um/Kconfig.i386 | 4 ++++
include/asm-um/system-i386.h | 2 --
2 files changed, 4 insertions(+), 2 deletions(-)
diff --git a/arch/um/Kconfig.i386 b/arch/um/Kconfig.i386
index 8ad156a00499..5d92cacd56c6 100644
--- a/arch/um/Kconfig.i386
+++ b/arch/um/Kconfig.i386
@@ -42,3 +42,7 @@ config ARCH_HAS_SC_SIGNALS
config ARCH_REUSE_HOST_VSYSCALL_AREA
bool
default y
+
+config X86_CMPXCHG
+ bool
+ default y
diff --git a/include/asm-um/system-i386.h b/include/asm-um/system-i386.h
index ea8381de3cc9..c436263e67ba 100644
--- a/include/asm-um/system-i386.h
+++ b/include/asm-um/system-i386.h
@@ -3,6 +3,4 @@
#include "asm/system-generic.h"
-#define __HAVE_ARCH_CMPXCHG 1
-
#endif
--
2.20.1