Re: [PATCH 10/17] prmem: documentation

[Igor Stoppa]

On 01/11/2018 00:57, Andy Lutomirski wrote:
> > On Oct 31, 2018, at 2:00 PM, Peter Zijlstra <peterz@xxxxxxxxxxxxx> wrote:



> > I _think_ the use-case for atomics is updating the reference counts of
> > objects that are in this write-rare domain. But I'm not entirely clear
> > on that myself either. I just really want to avoid duplicating that
> > stuff.
>
> Sounds nuts. Doing a rare-write is many hundreds of cycles at best. Using that for a reference count sounds wacky.
>
> Can we see a *real* use case before we over complicate the API?


Does patch #14 of this set not qualify? ima_htable.len ?

https://www.openwall.com/lists/kernel-hardening/2018/10/23/20

--
igor