[IA64-SGI] Make Altix SAL call to POD reentrant

Change the SAL call for POD mode to be reentrant.
This change is SN specific.

Signed-off-by: Russ Anderson (rja@sgi.com)
Signed-off-by: Tony Luck <tony.luck@intel.com>

include/asm-ia64/sn/sn_sal.h

@@ -472,7 +472,7 @@ static inline u64
 ia64_sn_pod_mode(void)
 {
 	struct ia64_sal_retval isrv;
-	SAL_CALL(isrv, SN_SAL_POD_MODE, 0, 0, 0, 0, 0, 0, 0);
+	SAL_CALL_REENTRANT(isrv, SN_SAL_POD_MODE, 0, 0, 0, 0, 0, 0, 0);
 	if (isrv.status)
 		return 0;
 	return isrv.v0;