linux-kernel - Re: [PATCH v4 00/23] device-dax: Support sub-dividing soft-reserved ranges

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Message-ID: <CAPcyv4gfBj66Dwy0yn2CX=cCT=yqR9wHE2gY1Q5_Nq2vnh0zPg@mail.gmail.com>
Date:   Tue, 22 Sep 2020 17:43:01 -0700
From:   Dan Williams <dan.j.williams@...el.com>
To:     David Hildenbrand <david@...hat.com>
Cc:     Andrew Morton <akpm@...ux-foundation.org>,
        Ira Weiny <ira.weiny@...el.com>,
        Ard Biesheuvel <ardb@...nel.org>,
        Mike Rapoport <rppt@...ux.ibm.com>,
        Borislav Petkov <bp@...en8.de>,
        Vishal Verma <vishal.l.verma@...el.com>,
        David Airlie <airlied@...ux.ie>, Will Deacon <will@...nel.org>,
        Catalin Marinas <catalin.marinas@....com>,
        Ard Biesheuvel <ard.biesheuvel@...aro.org>,
        Joao Martins <joao.m.martins@...cle.com>,
        Tom Lendacky <thomas.lendacky@....com>,
        Dave Jiang <dave.jiang@...el.com>,
        "Rafael J. Wysocki" <rafael.j.wysocki@...el.com>,
        Jonathan Cameron <Jonathan.Cameron@...wei.com>,
        Wei Yang <richardw.yang@...ux.intel.com>,
        X86 ML <x86@...nel.org>, "H. Peter Anvin" <hpa@...or.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Pavel Tatashin <pasha.tatashin@...een.com>,
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        Ben Skeggs <bskeggs@...hat.com>,
        Benjamin Herrenschmidt <benh@...nel.crashing.org>,
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        Ingo Molnar <mingo@...hat.com>,
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        Brice Goglin <Brice.Goglin@...ia.fr>,
        Jeff Moyer <jmoyer@...hat.com>,
        Michael Ellerman <mpe@...erman.id.au>,
        "Rafael J. Wysocki" <rjw@...ysocki.net>,
        Daniel Vetter <daniel@...ll.ch>,
        Andy Lutomirski <luto@...nel.org>,
        "Rafael J. Wysocki" <rafael@...nel.org>,
        Linux MM <linux-mm@...ck.org>,
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        Maling list - DRI developers 
        <dri-devel@...ts.freedesktop.org>,
        Zhen Lei <thunder.leizhen@...wei.com>
Subject: Re: [PATCH v4 00/23] device-dax: Support sub-dividing soft-reserved ranges

On Tue, Sep 8, 2020 at 3:46 AM David Hildenbrand <david@...hat.com> wrote:
>
> On 22.08.20 01:21, Andrew Morton wrote:
> > On Wed, 19 Aug 2020 18:53:57 -0700 Dan Williams <dan.j.williams@...el.com> wrote:
> >
> >>> I think I am missing some important pieces. Bear with me.
> >>
> >> No worries, also bear with me, I'm going to be offline intermittently
> >> until at least mid-September. Hopefully Joao and/or Vishal can jump in
> >> on this discussion.
> >
> > Ordinarily I'd prefer a refresh&resend for 2+ week-old series such as
> > this.
> >
> > But given that v4 all applies OK and that Dan has pending outages, I'll
> > scoop up this version, even though at least one change has been suggested.
> >
>
> Should I try to fix patch #11 while Dan is away? Because I think at
> least two things in there are wrong (and it would have been better to
> split that patch into reviewable pieces).

Hey David,

Back now, I'll take a look. I didn't immediately see a way to
meaningfully break up that patch without some dead-code steps in the
conversion, but I'll take another run at it.