linux-kernel - Re: [RFC PATCH 00/26] hugetlb: Introduce HugeTLB high-granularity mapping

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Message-ID: <CADrL8HUtdd=yEtY=bhHRYVjA30O1CAd6XEj+oTNjviWkSmzowQ@mail.gmail.com>
Date:   Mon, 27 Jun 2022 09:36:11 -0700
From:   James Houghton <jthoughton@...gle.com>
To:     Matthew Wilcox <willy@...radead.org>
Cc:     Mike Kravetz <mike.kravetz@...cle.com>,
        Muchun Song <songmuchun@...edance.com>,
        Peter Xu <peterx@...hat.com>,
        David Hildenbrand <david@...hat.com>,
        David Rientjes <rientjes@...gle.com>,
        Axel Rasmussen <axelrasmussen@...gle.com>,
        Mina Almasry <almasrymina@...gle.com>,
        Jue Wang <juew@...gle.com>,
        Manish Mishra <manish.mishra@...anix.com>,
        "Dr . David Alan Gilbert" <dgilbert@...hat.com>,
        linux-mm@...ck.org, linux-kernel@...r.kernel.org
Subject: Re: [RFC PATCH 00/26] hugetlb: Introduce HugeTLB high-granularity mapping

On Fri, Jun 24, 2022 at 11:29 AM Matthew Wilcox <willy@...radead.org> wrote:
>
> On Fri, Jun 24, 2022 at 05:36:30PM +0000, James Houghton wrote:
> > [1] This used to be called HugeTLB double mapping, a bad and confusing
> >     name. "High-granularity mapping" is not a great name either. I am open
> >     to better names.
>
> Oh good, I was grinding my teeth every time I read it ;-)
>
> How does "Fine granularity" work for you?
> "sub-page mapping" might work too.

"Granularity", as I've come to realize, is hard to say, so I think I
prefer sub-page mapping. :) So to recap the suggestions I have so far:

1. Sub-page mapping
2. Granular mapping
3. Flexible mapping

I'll pick one of these (or maybe some other one that works better) for
the next version of this series.