define new percpu interface for shared data

[linux-block.git] / include / asm-i386 / percpu.h

diff --git a/include/asm-i386/percpu.h b/include/asm-i386/percpu.h
index f54830b5d5ac299c38c496e65ed17d699c8c895f..a7ebd436f3cc513f61f6d154ee59566cd0de9fd3 100644 (file)
--- a/include/asm-i386/percpu.h
+++ b/include/asm-i386/percpu.h
@@ -54,6 +54,11 @@ extern unsigned long __per_cpu_offset[];
 #define DEFINE_PER_CPU(type, name) \
     __attribute__((__section__(".data.percpu"))) __typeof__(type) per_cpu__##name
 
+#define DEFINE_PER_CPU_SHARED_ALIGNED(type, name)              \
+    __attribute__((__section__(".data.percpu.shared_aligned"))) \
+    __typeof__(type) per_cpu__##name                           \
+    ____cacheline_aligned_in_smp
+
 /* We can use this directly for local CPU (faster). */
 DECLARE_PER_CPU(unsigned long, this_cpu_off);