linux-kernel - Re: [PATCH 01/19] dax: remove block device dependencies

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Message-ID: <x49wo9smnqc.fsf@segfault.boston.devel.redhat.com>
Date:   Wed, 15 Jan 2020 16:08:43 -0500
From:   Jeff Moyer <jmoyer@...hat.com>
To:     Dan Williams <dan.j.williams@...el.com>
Cc:     Vivek Goyal <vgoyal@...hat.com>, Jan Kara <jack@...e.cz>,
        "Darrick J. Wong" <darrick.wong@...cle.com>,
        Christoph Hellwig <hch@...radead.org>,
        Dave Chinner <david@...morbit.com>,
        Miklos Szeredi <miklos@...redi.hu>,
        linux-nvdimm <linux-nvdimm@...ts.01.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        "Dr. David Alan Gilbert" <dgilbert@...hat.com>,
        virtio-fs@...hat.com, Stefan Hajnoczi <stefanha@...hat.com>,
        linux-fsdevel <linux-fsdevel@...r.kernel.org>
Subject: Re: [PATCH 01/19] dax: remove block device dependencies

Hi, Dan,

Dan Williams <dan.j.williams@...el.com> writes:

> I'm going to take a look at how hard it would be to develop a kpartx
> fallback in udev. If that can live across the driver transition then
> maybe this can be a non-event for end users that already have that
> udev update deployed.

I just wanted to remind you that label-less dimms still exist, and are
still being shipped.  For those devices, the only way to subdivide the
storage is via partitioning.

-Jeff