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Subject: Re: [PATCH 10/17] prmem: documentation
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From:   Igor Stoppa <igor.stoppa@gmail.com>
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Date:   Thu, 1 Nov 2018 01:10:30 +0200
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On 01/11/2018 00:57, Andy Lutomirski wrote:
> 
> 
>> On Oct 31, 2018, at 2:00 PM, Peter Zijlstra <peterz@infradead.org> 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