Re: [RFC 01/20] mm/tlb: fix fullmm semantics

Nadav Amit
2021-02-01T07:32:20Z

> On Jan 30, 2021, at 6:57 PM, Andy Lutomirski <luto@kernel.org> wrote:
>
> On Sat, Jan 30, 2021 at 5:19 PM Nadav Amit <nadav.amit@gmail.com> wrote:
>>> On Jan 30, 2021, at 5:02 PM, Andy Lutomirski <luto@kernel.org> wrote:
>>>
>>> On Sat, Jan 30, 2021 at 4:16 PM Nadav Amit <nadav.amit@gmail.com> wrote:
>>>> From: Nadav Amit <namit@vmware.com>
>>>>
>>>> fullmm in mmu_gather is supposed to indicate that the mm is torn-down
>>>> (e.g., on process exit) and can therefore allow certain optimizations.
>>>> However, tlb_finish_mmu() sets fullmm, when in fact it want to say that
>>>> the TLB should be fully flushed.
>>>
>>> Maybe also rename fullmm?
>>
>> Possible. How about mm_torn_down?
>
> Sure. Or mm_exiting, perhaps?

mm_exiting indeed sounds better.