Messages in this thread | | | Date | Wed, 29 Jun 2022 19:04:24 -0700 | From | "Andy Lutomirski" <> | Subject | Re: [PATCHv3 6/8] x86/mm: Provide ARCH_GET_UNTAG_MASK and ARCH_ENABLE_TAGGED_ADDR |
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On Thu, Jun 16, 2022, at 9:54 AM, Kirill A. Shutemov wrote: > 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?
I think the idea is that the kthread in question is expected to hold an mm_users reference.
> > -- > Kirill A. Shutemov
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