[arch-split]

more clean ups of where irq_vectors.h resides (place it in machine
specific directory)

also tidy up hyperthreading define

arch/i386/kernel/entry.S

@@ -47,7 +47,7 @@
 #include <asm/errno.h>
 #include <asm/segment.h>
 #include <asm/smp.h>
-#include <asm/irq_vectors.h>
+#include "irq_vectors.h"
 
 EBX		= 0x00
 ECX		= 0x04

fs/binfmt_elf.c

@@ -142,7 +142,7 @@ create_elf_tables(char *p, int argc, int envc,
 	} else
 		u_platform = p;
 
-#if defined(__i386__) && defined(CONFIG_SMP)
+#ifdef CONFIG_X86_HT
 	/*
 	 * In some cases (e.g. Hyper-Threading), we want to avoid L1 evictions
 	 * by the processes running on the same package. One thing we can do

include/asm-i386/irq.h

@@ -12,7 +12,8 @@
 
 #include <linux/config.h>
 #include <linux/sched.h>
-#include <asm/irq_vectors.h>
+/* include comes from machine specific directory */
+#include "irq_vectors.h"
 
 static __inline__ int irq_cannonicalize(int irq)
 {