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| author | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2013-09-24 11:14:56 +0400 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2013-10-24 19:16:57 +0400 |
| commit | e258d719ff28ecc7a048eb8f78380e68c4b3a3f0 (patch) | |
| tree | 1c7f496b97cef1111b230371940e603a2ca401a4 /arch/s390/include/asm/mmu_context.h | |
| parent | 7d7c7b24e416afb2637be8447e03ca4457c100fd (diff) | |
| download | linux-e258d719ff28ecc7a048eb8f78380e68c4b3a3f0.tar.xz | |
s390/uaccess: always run the kernel in home space
Simplify the uaccess code by removing the user_mode=home option.
The kernel will now always run in the home space mode.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/include/asm/mmu_context.h')
| -rw-r--r-- | arch/s390/include/asm/mmu_context.h | 10 |
1 files changed, 2 insertions, 8 deletions
diff --git a/arch/s390/include/asm/mmu_context.h b/arch/s390/include/asm/mmu_context.h index 9f973d8de90e..5d1f950704dc 100644 --- a/arch/s390/include/asm/mmu_context.h +++ b/arch/s390/include/asm/mmu_context.h @@ -40,14 +40,8 @@ static inline void update_mm(struct mm_struct *mm, struct task_struct *tsk) pgd_t *pgd = mm->pgd; S390_lowcore.user_asce = mm->context.asce_bits | __pa(pgd); - if (s390_user_mode != HOME_SPACE_MODE) { - /* Load primary space page table origin. */ - asm volatile(LCTL_OPCODE" 1,1,%0\n" - : : "m" (S390_lowcore.user_asce) ); - } else - /* Load home space page table origin. */ - asm volatile(LCTL_OPCODE" 13,13,%0" - : : "m" (S390_lowcore.user_asce) ); + /* Load primary space page table origin. */ + asm volatile(LCTL_OPCODE" 1,1,%0\n" : : "m" (S390_lowcore.user_asce)); set_fs(current->thread.mm_segment); } |