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| author |   Jeff Dike <jdike@addtoit.com> | 2005-09-16 19:28:03 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@g5.osdl.org> | 2005-09-17 11:50:01 -0700 |
| commit | 3013449243adc3421b507696e5d247a3d292ee0c (patch) | |
| tree | 0cabbe21507b1136b84086452f56b5a095adfcf8 /arch/um | |
| parent | [PATCH] PR_GET_DUMPABLE returns incorrect info (diff) | |
| download | linux-dev-3013449243adc3421b507696e5d247a3d292ee0c.tar.xz linux-dev-3013449243adc3421b507696e5d247a3d292ee0c.zip | |
[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 config ARCH_REUSE_HOST_VSYSCALL_AREA bool default y + +config X86_CMPXCHG + bool + default y |