Re: [PATCH v2 -tip] x86/percpu: Use C for arch_raw_cpu_ptr()

[Linus Torvalds]

On Tue, 10 Oct 2023 at 11:22, Uros Bizjak <ubizjak@xxxxxxxxx> wrote:
>
> Please note that besides propagation of the addition into address, the
> patch also exposes memory load to the compiler, with the anticipation
> that the compiler CSEs the load from this_cpu_off from eventual
> multiple addresses. For this to work, we have to get rid of the asms.

I actually checked that the inline asm gets combined, the same way the
this_cpu_read_stable cases do (which we use for 'current').

              Linus