[S390] Add is_32bit_task() helper function

Helper function which tells us if a task is running in ESA mode. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
git-mirror · Jan 12, 2011 · a05c90f · a05c90f
1 parent 9887a1f
commit a05c90f
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Showing 2 changed files with 7 additions and 1 deletion.
diff --git a/arch/s390/include/asm/compat.h b/arch/s390/include/asm/compat.h
@@ -169,7 +169,7 @@ static inline compat_uptr_t ptr_to_compat(void __user *uptr)
 
 static inline int is_compat_task(void)
 {
-	return test_thread_flag(TIF_31BIT);
+	return is_32bit_task();
 }
 
 #else

diff --git 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
-Original file line number
+Diff line change
@@ Expand Up @@
     static inline int is_compat_task(void)
     {
-    	return test_thread_flag(TIF_31BIT);
+    	return is_32bit_task();
     }
     #else
@@ Expand Down @@