Re: [PATCH v3 2/2] mm: disable CONFIG_PER_VMA_LOCK until its fixed

[Suren Baghdasaryan]

On Wed, Jul 5, 2023 at 5:24 PM Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> wrote:
>
> On Wed, 5 Jul 2023 13:33:26 -0700 Suren Baghdasaryan <surenb@xxxxxxxxxx> wrote:
>
> > I was hoping we could re-enable VMA locks in 6.4 once we get more
> > confirmations that the problem is gone. Is that not possible once the
> > BROKEN dependency is merged?
>
> I think "no".  By doing this we're effectively backporting a minor
> performance optimization, which isn't a thing we'd normally do.

In that case, maybe for 6.4 we send the fix and only disable it by
default without marking BROKEN? That way we still have a way to enable
it if desired?

>