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Date:   Fri, 31 Aug 2018 11:00:54 +1000
From:   Nicholas Piggin <>
To:     Linus Torvalds <>
Cc:     Will Deacon <>,
        Linux Kernel Mailing List <>,
        Peter Zijlstra <>,
        Benjamin Herrenschmidt <>,
        Catalin Marinas <>,
        linux-arm-kernel <>
Subject: Re: [PATCH 00/12] Avoid synchronous TLB invalidation for
 intermediate page-table entries on arm64

On Thu, 30 Aug 2018 09:39:38 -0700
Linus Torvalds <> wrote:

> On Thu, Aug 30, 2018 at 9:15 AM Will Deacon <> wrote:
> >
> > It's also had a lot more testing, but has held up nicely so far on arm64.
> > I haven't figured out how to merge this yet, but I'll probably end up pulling
> > the core changes out onto a separate branch.  
> This looks fine, and I'm actually ok getting the core changes through
> the arm64 branch, since this has been discussed across architectures,
> and I think "whoever does the work gets to drive the car".

Well it would help if powerpc say wanted to start using them without a
merge cycle lag. Not a huge issue because powerpc already does
reasonably well here and there's other work that can be done.

I will try to review the core changes carefully next week.


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