diff options
Diffstat (limited to 'arch/powerpc/kernel')
| -rw-r--r-- | arch/powerpc/kernel/process.c | 2 | ||||
| -rw-r--r-- | arch/powerpc/kernel/ptrace/ptrace-tm.c | 10 | ||||
| -rw-r--r-- | arch/powerpc/kernel/ptrace/ptrace-view.c | 15 | ||||
| -rw-r--r-- | arch/powerpc/kernel/vdso.c | 22 |
4 files changed, 14 insertions, 35 deletions
diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c index 67da147fe34d..fcf604370c66 100644 --- a/arch/powerpc/kernel/process.c +++ b/arch/powerpc/kernel/process.c @@ -2303,6 +2303,6 @@ void notrace __ppc64_runlatch_off(void) unsigned long arch_align_stack(unsigned long sp) { if (!(current->personality & ADDR_NO_RANDOMIZE) && randomize_va_space) - sp -= prandom_u32_max(PAGE_SIZE); + sp -= get_random_u32_below(PAGE_SIZE); return sp & ~0xf; } diff --git a/arch/powerpc/kernel/ptrace/ptrace-tm.c b/arch/powerpc/kernel/ptrace/ptrace-tm.c index 44045363a903..210ea834e603 100644 --- a/arch/powerpc/kernel/ptrace/ptrace-tm.c +++ b/arch/powerpc/kernel/ptrace/ptrace-tm.c @@ -170,9 +170,9 @@ int tm_cgpr_set(struct task_struct *target, const struct user_regset *regset, (PT_MAX_PUT_REG + 1) * sizeof(reg)); if (PT_MAX_PUT_REG + 1 < PT_TRAP && !ret) - ret = user_regset_copyin_ignore(&pos, &count, &kbuf, &ubuf, - (PT_MAX_PUT_REG + 1) * sizeof(reg), - PT_TRAP * sizeof(reg)); + user_regset_copyin_ignore(&pos, &count, &kbuf, &ubuf, + (PT_MAX_PUT_REG + 1) * sizeof(reg), + PT_TRAP * sizeof(reg)); if (!ret && count > 0) { ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf, ®, @@ -183,8 +183,8 @@ int tm_cgpr_set(struct task_struct *target, const struct user_regset *regset, } if (!ret) - ret = user_regset_copyin_ignore(&pos, &count, &kbuf, &ubuf, - (PT_TRAP + 1) * sizeof(reg), -1); + user_regset_copyin_ignore(&pos, &count, &kbuf, &ubuf, + (PT_TRAP + 1) * sizeof(reg), -1); return ret; } diff --git a/arch/powerpc/kernel/ptrace/ptrace-view.c b/arch/powerpc/kernel/ptrace/ptrace-view.c index 076d867412c7..2087a785f05f 100644 --- a/arch/powerpc/kernel/ptrace/ptrace-view.c +++ b/arch/powerpc/kernel/ptrace/ptrace-view.c @@ -267,9 +267,9 @@ static int gpr_set(struct task_struct *target, const struct user_regset *regset, (PT_MAX_PUT_REG + 1) * sizeof(reg)); if (PT_MAX_PUT_REG + 1 < PT_TRAP && !ret) - ret = user_regset_copyin_ignore(&pos, &count, &kbuf, &ubuf, - (PT_MAX_PUT_REG + 1) * sizeof(reg), - PT_TRAP * sizeof(reg)); + user_regset_copyin_ignore(&pos, &count, &kbuf, &ubuf, + (PT_MAX_PUT_REG + 1) * sizeof(reg), + PT_TRAP * sizeof(reg)); if (!ret && count > 0) { ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf, ®, @@ -280,8 +280,8 @@ static int gpr_set(struct task_struct *target, const struct user_regset *regset, } if (!ret) - ret = user_regset_copyin_ignore(&pos, &count, &kbuf, &ubuf, - (PT_TRAP + 1) * sizeof(reg), -1); + user_regset_copyin_ignore(&pos, &count, &kbuf, &ubuf, + (PT_TRAP + 1) * sizeof(reg), -1); return ret; } @@ -706,8 +706,9 @@ int gpr32_set_common(struct task_struct *target, ubuf = u; pos *= sizeof(reg); count *= sizeof(reg); - return user_regset_copyin_ignore(&pos, &count, &kbuf, &ubuf, - (PT_TRAP + 1) * sizeof(reg), -1); + user_regset_copyin_ignore(&pos, &count, &kbuf, &ubuf, + (PT_TRAP + 1) * sizeof(reg), -1); + return 0; Efault: user_read_access_end(); diff --git a/arch/powerpc/kernel/vdso.c b/arch/powerpc/kernel/vdso.c index 4abc01949702..507f8228f983 100644 --- a/arch/powerpc/kernel/vdso.c +++ b/arch/powerpc/kernel/vdso.c @@ -129,28 +129,6 @@ int vdso_join_timens(struct task_struct *task, struct time_namespace *ns) return 0; } - -static struct page *find_timens_vvar_page(struct vm_area_struct *vma) -{ - if (likely(vma->vm_mm == current->mm)) - return current->nsproxy->time_ns->vvar_page; - - /* - * VM_PFNMAP | VM_IO protect .fault() handler from being called - * through interfaces like /proc/$pid/mem or - * process_vm_{readv,writev}() as long as there's no .access() - * in special_mapping_vmops. - * For more details check_vma_flags() and __access_remote_vm() - */ - WARN(1, "vvar_page accessed remotely"); - - return NULL; -} -#else -static struct page *find_timens_vvar_page(struct vm_area_struct *vma) -{ - return NULL; -} #endif static vm_fault_t vvar_fault(const struct vm_special_mapping *sm, |