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authorHeiko Carstens <heiko.carstens@de.ibm.com>2012-01-12 17:17:30 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2012-01-12 20:13:03 -0800
commit4156153c4daddf12dd386016f96a947a01e93bf4 (patch)
tree6a8653a47bcda09b97870e5c79919790638afe0c /arch
parent43570fd2f47ba518145e9289f54cde3dba4c8b25 (diff)
mm,x86,um: move CMPXCHG_LOCAL config option
Move CMPXCHG_LOCAL and rename it to HAVE_CMPXCHG_LOCAL so architectures can simply select the option if it is supported. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Acked-by: Christoph Lameter <cl@linux.com> Cc: Pekka Enberg <penberg@kernel.org> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: "H. Peter Anvin" <hpa@zytor.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch')
-rw-r--r--arch/Kconfig3
-rw-r--r--arch/x86/Kconfig1
-rw-r--r--arch/x86/Kconfig.cpu3
-rw-r--r--arch/x86/um/Kconfig4
4 files changed, 4 insertions, 7 deletions
diff --git a/arch/Kconfig b/arch/Kconfig
index a2c5c077c32d..22182a8cc62c 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -193,4 +193,7 @@ config HAVE_ALIGNED_STRUCT_PAGE
on a struct page for better performance. However selecting this
might increase the size of a struct page by a word.
+config HAVE_CMPXCHG_LOCAL
+ bool
+
source "kernel/gcov/Kconfig"
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 5201a2c27239..59717fd17bc7 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -61,6 +61,7 @@ config X86
select HAVE_PERF_EVENTS_NMI
select ANON_INODES
select HAVE_ALIGNED_STRUCT_PAGE if SLUB && !M386
+ select HAVE_CMPXCHG_LOCAL if !M386
select HAVE_ARCH_KMEMCHECK
select HAVE_USER_RETURN_NOTIFIER
select ARCH_BINFMT_ELF_RANDOMIZE_PIE
diff --git a/arch/x86/Kconfig.cpu b/arch/x86/Kconfig.cpu
index e3ca7e0d858c..99d2ab8b7795 100644
--- a/arch/x86/Kconfig.cpu
+++ b/arch/x86/Kconfig.cpu
@@ -309,9 +309,6 @@ config X86_INTERNODE_CACHE_SHIFT
config X86_CMPXCHG
def_bool X86_64 || (X86_32 && !M386)
-config CMPXCHG_LOCAL
- def_bool X86_64 || (X86_32 && !M386)
-
config CMPXCHG_DOUBLE
def_bool y
diff --git a/arch/x86/um/Kconfig b/arch/x86/um/Kconfig
index 1d97bd84b6fb..a62bfc66239e 100644
--- a/arch/x86/um/Kconfig
+++ b/arch/x86/um/Kconfig
@@ -6,10 +6,6 @@ menu "UML-specific options"
menu "Host processor type and features"
-config CMPXCHG_LOCAL
- bool
- default n
-
config CMPXCHG_DOUBLE
bool
default n