Yes, I don't need to EXPORT this symbol again.
i have modified this patch and re-committed it. The email link is :https://lkml.org/lkml/2018/12/18/8
this patch you see is old.
thanks and regards
Matthew Wilcox <willy@xxxxxxxxxxxxx> 于2018年12月18日周二 下午8:47写道：
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
>
