ia64: add extable.h

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/arch/ia64/mm/extable.c b/arch/ia64/mm/extable.c
index 4edb816..10dd4a6 100644
--- a/arch/ia64/mm/extable.c
+++ b/arch/ia64/mm/extable.c
@@ -5,7 +5,10 @@
  *	David Mosberger-Tang <davidm@hpl.hp.com>
  */
 
-#include <linux/uaccess.h>
+#include <asm/ptrace.h>
+#include <asm/extable.h>
+#include <asm/errno.h>
+#include <asm/processor.h>
 
 void
 ia64_handle_exception (struct pt_regs *regs, const struct exception_table_entry *e)