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| author | Heiko Carstens <hca@linux.ibm.com> | 2025-11-17 11:11:48 +0100 |
|---|---|---|
| committer | Heiko Carstens <hca@linux.ibm.com> | 2025-11-17 11:11:48 +0100 |
| commit | 0d79affa31cbee477a45642efc49957d05466307 (patch) | |
| tree | b3e74ad3a4997923206879ee109d8dc7efc13ef0 /arch/s390/include/asm/processor.h | |
| parent | 52a1f73d1733e6d5bf2cbfa93296207e542cdea7 (diff) | |
| parent | 4ac286c4a8d904c8818a6f019da8117ec31b2c27 (diff) | |
Merge branch 'compat-removal'
Heiko Carstens says:
====================
Remove s390 compat support to allow for code simplification and especially
reduced test effort. To the best of our knowledge there aren't any 31 bit
binaries out in the world anymore that would matter for newer kernels or
newer distributions.
Distributions do not provide compat packages since quite some time or even
have CONFIG_COMPAT disabled.
Instead of adding deprecation warnings to config option, or adding kernel
messages, just remove the code. Deprecation warnings haven't proven to be
useful. If it turns out there is still a reason to keep the compat support
this series can be reverted at any time in the future.
====================
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Diffstat (limited to 'arch/s390/include/asm/processor.h')
| -rw-r--r-- | arch/s390/include/asm/processor.h | 13 |
1 files changed, 3 insertions, 10 deletions
diff --git a/arch/s390/include/asm/processor.h b/arch/s390/include/asm/processor.h index ead1ebc9c61e..3affba95845b 100644 --- a/arch/s390/include/asm/processor.h +++ b/arch/s390/include/asm/processor.h @@ -119,18 +119,12 @@ extern void execve_tail(void); unsigned long vdso_text_size(void); unsigned long vdso_size(void); -/* - * User space process size: 2GB for 31 bit, 4TB or 8PT for 64 bit. - */ - -#define TASK_SIZE (test_thread_flag(TIF_31BIT) ? \ - _REGION3_SIZE : TASK_SIZE_MAX) -#define TASK_UNMAPPED_BASE (test_thread_flag(TIF_31BIT) ? \ - (_REGION3_SIZE >> 1) : (_REGION2_SIZE >> 1)) +#define TASK_SIZE (TASK_SIZE_MAX) +#define TASK_UNMAPPED_BASE (_REGION2_SIZE >> 1) #define TASK_SIZE_MAX (-PAGE_SIZE) #define VDSO_BASE (STACK_TOP + PAGE_SIZE) -#define VDSO_LIMIT (test_thread_flag(TIF_31BIT) ? _REGION3_SIZE : _REGION2_SIZE) +#define VDSO_LIMIT (_REGION2_SIZE) #define STACK_TOP (VDSO_LIMIT - vdso_size() - PAGE_SIZE) #define STACK_TOP_MAX (_REGION2_SIZE - vdso_size() - PAGE_SIZE) @@ -181,7 +175,6 @@ struct thread_struct { unsigned long system_timer; /* task cputime in kernel space */ unsigned long hardirq_timer; /* task cputime in hardirq context */ unsigned long softirq_timer; /* task cputime in softirq context */ - const sys_call_ptr_t *sys_call_table; /* system call table address */ union teid gmap_teid; /* address and flags of last gmap fault */ unsigned int gmap_int_code; /* int code of last gmap fault */ int ufpu_flags; /* user fpu flags */ |