1 files changed, 9 insertions, 0 deletions

diff --git a/include/asm-i386/system.h b/include/asm-i386/system.h
index 9c0593b7a94e..36a92ed6a9d0 100644
--- a/include/asm-i386/system.h
+++ b/include/asm-i386/system.h
@@ -548,6 +548,15 @@ void enable_hlt(void);
 extern int es7000_plat;
 void cpu_idle_wait(void);
 
+/*
+ * On SMP systems, when the scheduler does migration-cost autodetection,
+ * it needs a way to flush as much of the CPU's caches as possible:
+ */
+static inline void sched_cacheflush(void)
+{
+        wbinvd();
+}
+
 extern unsigned long arch_align_stack(unsigned long sp);
 
 #endif