--- x/mm/vmscan.c.~1~	2003-04-12 00:18:36.000000000 +0200
+++ x/mm/vmscan.c	2003-04-12 00:20:31.000000000 +0200
@@ -339,8 +339,11 @@ static inline int swap_out_mm(struct mm_
 
 out_unlock:
 	spin_unlock(&mm->page_table_lock);
+#ifndef CONFIG_SMP
+	/* in SMP is too costly to send further IPIs */
 	if (tlb_flush)
 		flush_tlb_mm(mm);
+#endif
 	return count;
 }