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Date:   Tue, 22 Dec 2020 13:32:46 +0000
From:   Christoph Hellwig <hch@infradead.org>
To:     Palmer Dabbelt <palmer@dabbelt.com>
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Subject: Re: [dm-devel] [PATCH v1 0/5] dm: dm-user: New target that proxies
 BIOs to userspace
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On Mon, Dec 14, 2020 at 07:00:57PM -0800, Palmer Dabbelt wrote:
> I haven't gotten a whole lot of feedback, so I'm inclined to at least have some
> reasonable performance numbers before bothering with a v2.

FYI, my other main worry beside duplicating nbd is that device mapper
really is a stacked interface that sits on top of other block device.
Turning this into something else that just pipes data to userspace
seems very strange.