Commit 30134492 authored Sep 16, 2005 by Jeff Dike Committed by Linus Torvalds Sep 17, 2005

[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>

parent 2030c0fd

arch/um/Kconfig.i386

+4 −0

Original line number	Diff line number	Diff line
		@@ -42,3 +42,7 @@ config ARCH_HAS_SC_SIGNALS
		config ARCH_REUSE_HOST_VSYSCALL_AREA
		bool
		default y

		config X86_CMPXCHG
		bool
		default y

include/asm-um/system-i386.h

+0 −2

Original line number	Diff line number	Diff line
		@@ -3,6 +3,4 @@

		#include "asm/system-generic.h"

		#define __HAVE_ARCH_CMPXCHG 1

		#endif