Re: [PATCHv3 6/8] x86/mm: Provide ARCH_GET_UNTAG_MASK and ARCH_ENABLE_TAGGED_ADDR

Kirill A. Shutemov
2022-06-16T16:54:18Z

On Thu, Jun 16, 2022 at 11:44:59AM +0200, Peter Zijlstra wrote:
> > get_nr_threads() is the wrong thing. Either look at mm->mm_users or
> > find a way to get rid of this restriction entirely.
>
> mm->mm_users should indeed be sufficient here.

Hm. kthread_use_mm() doesn't bump mm_users. Do we care?

--
Kirill A. Shutemov