percpu: use a kconfig variable to signal arch specific percpu setup

The use of the __GENERIC_PERCPU is a bit problematic since arches
may want to run their own percpu setup while using the generic
percpu definitions. Replace it through a kconfig variable.

Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Mike Travis <travis@sgi.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

4 files changed, 12 insertions, 0 deletions

diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
index 4a81b7fb191a..5a41e75ae1fe 100644
--- a/arch/ia64/Kconfig
+++ b/arch/ia64/Kconfig
@@ -80,6 +80,9 @@ config GENERIC_TIME_VSYSCALL
         bool
         default y
 
+config ARCH_SETS_UP_PER_CPU_AREA
+        def_bool y
+
 config DMI
         bool
         default y
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index c17a194beb0e..fb85f6b72fcf 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -42,6 +42,9 @@ config GENERIC_HARDIRQS
         bool
         default y
 
+config ARCH_SETS_UP_PER_CPU_AREA
+        def_bool PPC64
+
 config IRQ_PER_CPU
         bool
         default y
diff --git a/arch/sparc64/Kconfig b/arch/sparc64/Kconfig
index 1e25bce0366d..26f5791baa33 100644
--- a/arch/sparc64/Kconfig
+++ b/arch/sparc64/Kconfig
@@ -66,6 +66,9 @@ config AUDIT_ARCH
         bool
         default y
 
+config ARCH_SETS_UP_PER_CPU_AREA
+        def_bool y
+
 config ARCH_NO_VIRT_TO_BUS
         def_bool y
 
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 1de28e850aa4..dc80a9f1f303 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -97,6 +97,9 @@ config GENERIC_TIME_VSYSCALL
         bool
         default X86_64
 
+config ARCH_SETS_UP_PER_CPU_AREA
+        def_bool X86_64
+
 config ARCH_SUPPORTS_OPROFILE
         bool
         default y