Re: [RFC v2 PATCH 0/16] Optimize this_cpu_*() ops for non-x86 (ARM64 for this series)
Linus Torvalds <[email protected]>
| Newsgroups | gmane.linux.kernel,gmane.linux.kernel.mm,gmane.linux.ports.arm.kernel |
|---|---|
| Message-ID | <CAHk-=wha5um2rB9u7EDeEhZJyaWOUFye-wTKzsykQqJH41RNdw@mail.gmail.com> |
On Tue, 4 Aug 2026 at 09:27, Christoph Lameter (Ampere) <[email protected]> wrote: > > We certainly do not want to replicate that approach. We are using the per > cpu page tables to avoid address calculations in the VM that other > platforms can do with a segment override. Right, and I said that that's ok as long as it's a internal architecture thing. Not a "this is how the VM works". Because people really have wanted to make it a "this is how the VM works" thing. And that is very much what I object to. Linus