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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: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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arch/s390/include/asm
@ -169,7 +169,7 @@ static inline compat_uptr_t ptr_to_compat(void __user *uptr)
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static inline int is_compat_task(void)
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{
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return test_thread_flag(TIF_31BIT);
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return is_32bit_task();
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}
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#else
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@ -118,6 +118,12 @@ static inline struct thread_info *current_thread_info(void)
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#define _TIF_SINGLE_STEP (1<<TIF_FREEZE)
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#define _TIF_FREEZE (1<<TIF_FREEZE)
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#ifdef CONFIG_64BIT
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#define is_32bit_task() (test_thread_flag(TIF_31BIT))
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#else
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#define is_32bit_task() (1)
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#endif
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#endif /* __KERNEL__ */
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#define PREEMPT_ACTIVE 0x4000000
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