diff options
Diffstat (limited to 'arch/powerpc/mm/mmu_context.c')
| -rw-r--r-- | arch/powerpc/mm/mmu_context.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/arch/powerpc/mm/mmu_context.c b/arch/powerpc/mm/mmu_context.c index 1fb9c99f8679..b24c19078eb1 100644 --- a/arch/powerpc/mm/mmu_context.c +++ b/arch/powerpc/mm/mmu_context.c @@ -43,11 +43,13 @@ static inline void switch_mm_pgdir(struct task_struct *tsk, void switch_mm_irqs_off(struct mm_struct *prev, struct mm_struct *next, struct task_struct *tsk) { + int cpu = smp_processor_id(); bool new_on_cpu = false; /* Mark this context has been used on the new CPU */ - if (!cpumask_test_cpu(smp_processor_id(), mm_cpumask(next))) { - cpumask_set_cpu(smp_processor_id(), mm_cpumask(next)); + if (!cpumask_test_cpu(cpu, mm_cpumask(next))) { + VM_WARN_ON_ONCE(next == &init_mm); + cpumask_set_cpu(cpu, mm_cpumask(next)); inc_mm_active_cpus(next); /* @@ -100,6 +102,8 @@ void switch_mm_irqs_off(struct mm_struct *prev, struct mm_struct *next, * sub architectures. Out of line for now */ switch_mmu_context(prev, next, tsk); + + VM_WARN_ON_ONCE(!cpumask_test_cpu(cpu, mm_cpumask(prev))); } #ifndef CONFIG_PPC_BOOK3S_64 |