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Commit a05c90f1 authored by Heiko Carstens's avatar Heiko Carstens Committed by Martin Schwidefsky
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[S390] Add is_32bit_task() helper function 



Helper function which tells us if a task is running in ESA mode.

Signed-off-by: default avatarHeiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: default avatarMartin Schwidefsky <schwidefsky@de.ibm.com>
parent 9887a1fc

arch/s390/include/asm/compat.h

+1 −1
Original line number Diff line number Diff line
@@ -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

arch/s390/include/asm/thread_info.h

+6 −0
Original line number Diff line number Diff line
@@ -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