percpu: make PER_CPU_BASE_SECTION overridable by arches

Impact: bug fix

IA-64 needs to put percpu data in the seperate section even on UP.
Fixes regression caused by "percpu: refactor percpu.h"

Signed-off-by: Brian Gerst <brgerst@gmail.com>
Acked-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 7 insertions, 1 deletions

diff --git a/include/linux/percpu.h b/include/linux/percpu.h
index 0e24202b5a4..3577ffd90d4 100644
--- a/include/linux/percpu.h
+++ b/include/linux/percpu.h
@@ -8,8 +8,15 @@
 
 #include <asm/percpu.h>
 
+#ifndef PER_CPU_BASE_SECTION
 #ifdef CONFIG_SMP
 #define PER_CPU_BASE_SECTION ".data.percpu"
+#else
+#define PER_CPU_BASE_SECTION ".data"
+#endif
+#endif
+
+#ifdef CONFIG_SMP
 
 #ifdef MODULE
 #define PER_CPU_SHARED_ALIGNED_SECTION ""
@@ -20,7 +27,6 @@
 
 #else
 
-#define PER_CPU_BASE_SECTION ".data"
 #define PER_CPU_SHARED_ALIGNED_SECTION ""
 #define PER_CPU_FIRST_SECTION ""