diff options
| author | Jeff Dike <jdike@addtoit.com> | 2005-09-17 06:28:03 +0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2005-09-17 22:50:01 +0400 |
| commit | 3013449243adc3421b507696e5d247a3d292ee0c (patch) | |
| tree | 0cabbe21507b1136b84086452f56b5a095adfcf8 | |
| parent | 2030c0fd3db3332378f95f479c286181e3920644 (diff) | |
| download | linux-3013449243adc3421b507696e5d247a3d292ee0c.tar.xz | |
[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>
| -rw-r--r-- | arch/um/Kconfig.i386 | 4 | ||||
| -rw-r--r-- | 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 |