linux-kernel - Re: [EXT] Re: [PATCH v2 00/22] add Object Storage Media Pool (mpool)

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Message-ID: <CAMM=eLf+2VYHB6vZVjn_=GA5uXJWKL-d6PuCpHEBPz=_Loe58A@mail.gmail.com>
Date:   Wed, 21 Oct 2020 10:24:05 -0400
From:   Mike Snitzer <snitzer@...hat.com>
To:     Dan Williams <dan.j.williams@...el.com>
Cc:     "Nabeel Meeramohideen Mohamed (nmeeramohide)" 
        <nmeeramohide@...ron.com>, Christoph Hellwig <hch@...radead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-block@...r.kernel.org" <linux-block@...r.kernel.org>,
        "linux-nvme@...ts.infradead.org" <linux-nvme@...ts.infradead.org>,
        "linux-mm@...ck.org" <linux-mm@...ck.org>,
        "linux-nvdimm@...ts.01.org" <linux-nvdimm@...ts.01.org>,
        "Steve Moyer (smoyer)" <smoyer@...ron.com>,
        "Greg Becker (gbecker)" <gbecker@...ron.com>,
        "Pierre Labat (plabat)" <plabat@...ron.com>,
        "John Groves (jgroves)" <jgroves@...ron.com>,
        device-mapper development <dm-devel@...hat.com>
Subject: Re: [EXT] Re: [PATCH v2 00/22] add Object Storage Media Pool (mpool)

Hey Dan,

On Fri, Oct 16, 2020 at 6:38 PM Dan Williams <dan.j.williams@...el.com> wrote:
>
> On Fri, Oct 16, 2020 at 2:59 PM Nabeel Meeramohideen Mohamed
> (nmeeramohide) <nmeeramohide@...ron.com> wrote:
>
> > (5) Representing an mpool as a /dev/mpool/<mpool-name> device file provides a
> > convenient mechanism for controlling access to and managing the multiple storage
> > volumes, and in the future pmem devices, that may comprise an logical mpool.
>
> Christoph and I have talked about replacing the pmem driver's
> dependence on device-mapper for pooling.

Was this discussion done publicly or private?  If public please share
a pointer to the thread.

I'd really like to understand the problem statement that is leading to
pursuing a pmem native alternative to existing DM.

Thanks,
Mike