#define STACK_TOP (test_thread_flag(TIF_32BIT) ? \
STACK_TOP_USER32 : STACK_TOP_USER64)
+#define STACK_TOP_MAX STACK_TOP_USER64
+
#else /* __powerpc64__ */
#define STACK_TOP TASK_SIZE
+#define STACK_TOP_MAX STACK_TOP
#endif /* __powerpc64__ */
#endif /* __KERNEL__ */