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Date:   Fri, 3 May 2019 14:18:38 +0200
From:   Christoph Hellwig <>
To:     Maxim Levitsky <>
Cc:,,, Jens Axboe <>,
        Alex Williamson <>,
        Keith Busch <>,
        Christoph Hellwig <>,
        Sagi Grimberg <>,
        Kirti Wankhede <>,
        "David S . Miller" <>,
        Mauro Carvalho Chehab <>,
        Greg Kroah-Hartman <>,
        Wolfram Sang <>,
        Nicolas Ferre <>,
        "Paul E . McKenney " <>,
        Paolo Bonzini <>,
        Liang Cunming <>,
        Liu Changpeng <>,
        Fam Zheng <>, Amnon Ilan <>,
        John Ferlan <>
Subject: Re: [PATCH v2 00/10] RFC: NVME MDEV

I simply don't get the point of this series.

MDEV is an interface for exposing parts of a device to a userspace
program / VM.  But that this series appears to do is to expose a
purely software defined nvme controller to userspace.  Which in
principle is a good idea, but we have a much better framework for that,
which is called vhost.

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