Re: [PATCH v2 6/7] mm: add assertion for VMA count limit

[David Hildenbrand]

> > Can't that fire when changing the max count from user space at just the
> > wrong time?
>
> You are right: technically it's possible if it was raised between the
> time of checking and when the new VMA is added.
>
> > I assume we'll have to tolerated that and might just want to drop this
> > patch from the series.
>
> It is compiled out in !CONFIG_VM_DEBUG builds, would we still want to drop it?

Due to the racy nature I think any kinds of assertions would be wrong. 
Without any such races possible I would agree that the checks would be 
nice to have.

--
Cheers

David / dhildenb