Re: [PATCH v2 0/5] x86/percpu semantics and fixes

[Nadav Amit]

> On Jun 13, 2019, at 6:54 AM, Peter Zijlstra <peterz@xxxxxxxxxxxxx> wrote:
> 
> Hi all,
> 
> I still have these patches sitting in my queue and figured I'd repost them.
> 
> Last time Linus proposed a "+m" alternative approach, but that generates far
> far worse code (I've lost the patch and not re-ran those numbers, but I suppose
> I can redo if found important).

I remember I tried it as well and got the same results.

> These patches have been through 0day for a while.

Finally, I would not need to cache smp_processor_id() on the stack when it
is used multiple timesâ