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| author | Heiko Carstens <heiko.carstens@de.ibm.com> | 2015-02-12 13:08:27 +0100 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2015-03-25 11:49:33 +0100 |
| commit | 5a79859ae0f35d25c67a03e82bf0c80592f16a39 (patch) | |
| tree | 37264d49f069812f19ced94e6ae171814fb7e498 /arch/s390/include/asm/thread_info.h | |
| parent | 1833c9f647e9bda1cd24653ff8f9c207b5f5b911 (diff) | |
| download | linux-5a79859ae0f35d25c67a03e82bf0c80592f16a39.tar.bz2 | |
s390: remove 31 bit support
Remove the 31 bit support in order to reduce maintenance cost and
effectively remove dead code. Since a couple of years there is no
distribution left that comes with a 31 bit kernel.
The 31 bit kernel also has been broken since more than a year before
anybody noticed. In addition I added a removal warning to the kernel
shown at ipl for 5 minutes: a960062e5826 ("s390: add 31 bit warning
message") which let everybody know about the plan to remove 31 bit
code. We didn't get any response.
Given that the last 31 bit only machine was introduced in 1999 let's
remove the code.
Anybody with 31 bit user space code can still use the compat 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/include/asm/thread_info.h')
| -rw-r--r-- | arch/s390/include/asm/thread_info.h | 9 |
1 files changed, 0 insertions, 9 deletions
diff --git a/arch/s390/include/asm/thread_info.h b/arch/s390/include/asm/thread_info.h index ef1df718642d..3df4aa13291d 100644 --- a/arch/s390/include/asm/thread_info.h +++ b/arch/s390/include/asm/thread_info.h @@ -10,13 +10,8 @@ /* * Size of kernel stack for each process */ -#ifndef CONFIG_64BIT -#define THREAD_ORDER 1 -#define ASYNC_ORDER 1 -#else /* CONFIG_64BIT */ #define THREAD_ORDER 2 #define ASYNC_ORDER 2 -#endif /* CONFIG_64BIT */ #define THREAD_SIZE (PAGE_SIZE << THREAD_ORDER) #define ASYNC_SIZE (PAGE_SIZE << ASYNC_ORDER) @@ -99,10 +94,6 @@ static inline struct thread_info *current_thread_info(void) #define _TIF_31BIT (1<<TIF_31BIT) #define _TIF_SINGLE_STEP (1<<TIF_SINGLE_STEP) -#ifdef CONFIG_64BIT #define is_32bit_task() (test_thread_flag(TIF_31BIT)) -#else -#define is_32bit_task() (1) -#endif #endif /* _ASM_THREAD_INFO_H */ |