diff options
| author | Jeff Dike <jdike@addtoit.com> | 2005-09-16 22:28:03 -0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2005-09-17 14:50:01 -0400 |
| commit | 3013449243adc3421b507696e5d247a3d292ee0c (patch) | |
| tree | 0cabbe21507b1136b84086452f56b5a095adfcf8 /arch/um | |
| parent | 2030c0fd3db3332378f95f479c286181e3920644 (diff) | |
[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>
Diffstat (limited to 'arch/um')
| -rw-r--r-- | arch/um/Kconfig.i386 | 4 |
1 files changed, 4 insertions, 0 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 | |||
| 42 | config ARCH_REUSE_HOST_VSYSCALL_AREA | 42 | config ARCH_REUSE_HOST_VSYSCALL_AREA |
| 43 | bool | 43 | bool |
| 44 | default y | 44 | default y |
| 45 | |||
| 46 | config X86_CMPXCHG | ||
| 47 | bool | ||
| 48 | default y | ||