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-rw-r--r--arch/s390/include/asm/thread_info.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/s390/include/asm/thread_info.h b/arch/s390/include/asm/thread_info.h
index ebc77091466..ad1382f7932 100644
--- a/arch/s390/include/asm/thread_info.h
+++ b/arch/s390/include/asm/thread_info.h
@@ -118,6 +118,12 @@ static inline struct thread_info *current_thread_info(void)
#define _TIF_SINGLE_STEP (1<<TIF_FREEZE)
#define _TIF_FREEZE (1<<TIF_FREEZE)
+#ifdef CONFIG_64BIT
+#define is_32bit_task() (test_thread_flag(TIF_31BIT))
+#else
+#define is_32bit_task() (1)
+#endif
+
#endif /* __KERNEL__ */
#define PREEMPT_ACTIVE 0x4000000