linux-kernel - Re: [PATCH 1/3] x86,mm/pat: Use generic interval trees

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Message-ID: <20190905050308.mfgiha2y2wydxwtx@linux-r8p5>
Date:   Wed, 4 Sep 2019 22:03:08 -0700
From:   Davidlohr Bueso <dave@...olabs.net>
To:     Michel Lespinasse <walken@...gle.com>
Cc:     Ingo Molnar <mingo@...nel.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Peter Zijlstra <peterz@...radead.org>,
        Andrew Morton <akpm@...ux-foundation.org>, x86@...nel.org,
        LKML <linux-kernel@...r.kernel.org>,
        Davidlohr Bueso <dbueso@...e.de>
Subject: Re: [PATCH 1/3] x86,mm/pat: Use generic interval trees

On Wed, 04 Sep 2019, Michel Lespinasse wrote:

>Hi Davidlohr,
>
>On Wed, Sep 4, 2019 at 5:52 PM Davidlohr Bueso <dave@...olabs.net> wrote:
>> Ok, so for that I've added the following helper which will make the
>> conversion a bit more straightforward:
>>
>> #define vma_interval_tree_foreach_stab(vma, root, start)
>>        vma_interval_tree_foreach(vma, root, start, start)
>
>Yes, that should help with the conversion :)
>
>> I think this also makes sense as it documents the nature of the lookup.

Because this is a nice helper regardless of the interval tree stuff, I went
ahead and sent a patch as well as the conversion, which is quite trivial,
and hopefully akpm can pick it up for -next; which makes one less patch
to carry when doing the interval tree conversion series.

Thanks,
Davidlohr