Re: [PATCH v11 18/20] x86: Handle TDX erratum to reset TDX private memory during kexec() and reboot

[kirill.shutemov@xxxxxxxxxxxxxxx]

On Mon, Jun 12, 2023 at 10:27:44AM +0000, Huang, Kai wrote:
> Does it make sense?

I understand your logic. AFAICS, it is correct (smp_mb() instead of __mb()
would be better), but it is not justified from complexity PoV. This
lockless exercise gave me a pause to understand.

Lockless doesn't buy you anything here, only increases complexity.
Just take a lock.

Kernel is big. I'm sure you'll find a better opportunity to be clever
about serialization :P

-- 
  Kiryl Shutsemau / Kirill A. Shutemov