On Tue, Dec 18, 2018 at 11:42:11AM +0800, gchen.guomin@xxxxxxxxx wrote: > +EXPORT_SYMBOL(mm_update_next_owner); Unless you've figured out how to build mmu_context.c as a module, you don't need to EXPORT the symbol. Just the below hunk is enough. > diff --git a/mm/mmu_context.c b/mm/mmu_context.c > index 3e612ae..9eb81aa 100644 > --- a/mm/mmu_context.c > +++ b/mm/mmu_context.c > @@ -60,5 +60,6 @@ void unuse_mm(struct mm_struct *mm) > /* active_mm is still 'mm' */ > enter_lazy_tlb(mm, tsk); > task_unlock(tsk); > + mm_update_next_owner(mm); > } > EXPORT_SYMBOL_GPL(unuse_mm); > -- > 1.8.3.1 >
