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| author | Heiko Carstens <heiko.carstens@de.ibm.com> | 2011-01-12 09:55:29 +0100 |
|---|---|---|
| committer | Martin Schwidefsky <sky@mschwide.boeblingen.de.ibm.com> | 2011-01-12 09:55:25 +0100 |
| commit | a05c90f1948baacedd0c3e7e3250225be4cae727 (patch) | |
| tree | 4c3f2e2b692c1b4915b8bef40ad591dfc3e7edcc /arch/s390 | |
| parent | [S390] Randomize lower bits of stack address (diff) | |
| download | linux-a05c90f1948baacedd0c3e7e3250225be4cae727.tar.xz linux-a05c90f1948baacedd0c3e7e3250225be4cae727.zip | |
[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>
Diffstat (limited to 'arch/s390')
| -rw-r--r-- | arch/s390/include/asm/compat.h | 2 | ||||
| -rw-r--r-- | arch/s390/include/asm/thread_info.h | 6 |
2 files changed, 7 insertions, 1 deletions
diff --git a/arch/s390/include/asm/compat.h b/arch/s390/include/asm/compat.h index a875c2f542e1..da359ca6fe55 100644 --- 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 index ebc77091466f..ad1382f7932e 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 |