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Date: Fri, 28 Oct 2016 19:51:02 +0000
From: "Reshetova, Elena" <elena.reshetova@...el.com>
To: "kernel-hardening@...ts.openwall.com"
<kernel-hardening@...ts.openwall.com>
CC: Kees Cook <keescook@...omium.org>, Hans Liljestrand <ishkamiel@...il.com>
Subject: RE: [RFC v2 PATCH 00/13] HARDENED_ATOMIC
>Done. I added a line to the "HARDENED_ATOMIC Implementation" section of Documentation/security/hardened-atomic.txt describing the results of the benchmarks (no measurable performance difference). You might want to add this line to the cover >letter as well.
Thank you David! I will merge it tomorrow before sending a new rfc. I will also add the performance line to cover letter.
> I know I promised to post the results of another set of benchmarks I performed, and I will do that soon.
If you can send it before tomorrow, would be great! We can include them in v3 straight then.
I would like to get v3 out tomorrow that people can look at it before the kernel summit.
Best Regards,
Elena.
On Fri, Oct 28, 2016 at 9:02 AM, Reshetova, Elena <elena.reshetova@...el.com> wrote:
>>> - add missing tests for atomic64 and local
>>> - rebase on top of latest linux-next
>>> - compile test and test run the whole thing in different
>>> combinations
>>> - send rfcv3 with also all atomic maintainers included for wider
>>> blame/feedback
>>>
>>> Does it sound like a good plan for everyone?
>>>
>
>> Actually, it doesn't look like I've updated Documentation/security/hardened-atomic.txt yet. I need to fix the language explaining the x86 race condition to make it clear that we're discussing the SMP case.
>> I also want to add a sentence somewhere (either in your cover letter or in the kernel documentation, or both), referencing the benchmark results and lack of demonstrable performance degradation.
>
> David, could you please push the changes you want to do to the documentation in separate commit to the top of hardened_atomic_on_next?
> I will cherry pick them to our new rebased branch hardened_atomic_next that we still working actively now.
>
> Best Regards,
> Elena.
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