Re: [RFC PATCH 0/7] mm: defer address-space teardown of large exiting processes to a kthread

[David Hildenbrand (Arm)]

[...]

> says that the s390 case was addressed with KVM specific async destruction,
> but what you point to is QEMU's shadow process. I will correct that in v2.

CLONE_VM seems to work for the use cases you had in mind.

There would have to be a *pretty* convincing story why we would want more
complexity in the kernel to handle this.

Some smaller performance improvements are not worth it.
-- 
Cheers,

David