define new percpu interface for shared data

[safe/jmp/linux-2.6] / include / asm-ia64 / percpu.h

diff --git a/include/asm-ia64/percpu.h b/include/asm-ia64/percpu.h
index fbe5cf3..43a7aac 100644 (file)
--- a/include/asm-ia64/percpu.h
+++ b/include/asm-ia64/percpu.h
@@ -29,6 +29,16 @@
        __attribute__((__section__(".data.percpu")))            \
        __SMALL_ADDR_AREA __typeof__(type) per_cpu__##name
 
+#ifdef CONFIG_SMP
+#define DEFINE_PER_CPU_SHARED_ALIGNED(type, name)                      \
+       __attribute__((__section__(".data.percpu.shared_aligned")))     \
+       __SMALL_ADDR_AREA __typeof__(type) per_cpu__##name              \
+       ____cacheline_aligned_in_smp
+#else
+#define DEFINE_PER_CPU_SHARED_ALIGNED(type, name)      \
+       DEFINE_PER_CPU(type, name)
+#endif
+
 /*
  * Pretty much a literal copy of asm-generic/percpu.h, except that percpu_modcopy() is an
  * external routine, to avoid include-hell.