On Mon, Oct 02, 2023 at 03:43:19PM +0200, Michal Hocko wrote: > We should also consider the global control for this functionality. I am > especially worried about setups where a mixed bag of workloads > (containers) is executed. While some of them will be ready for the new > accounting mode many will leave in their own world without ever being > modified. How do we deal with that situation? It's possible to add more localized control on top of the global flag should this come up. But this seems like a new and honestly pretty hypothetical usecase, given the host-level coordination already involved in real-world hugetlb setups. The same could be said about other mount options, such as nsdelegate, memory_localevents, and memory_recursiveprot. Those you'd expect to have a much broader audience, and nobody has asked for mixed use. Let's cross this bridge not when but if we have to.
