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    SubjectRe: [PATCH 0/2] loop: Better discard for block devices
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    On Tue, 2018-10-30 at 16:06 -0700, Evan Green wrote:
    > This series addresses some errors seen when using the loop
    > device directly backed by a block device. The first change plumbs
    > out the correct error message, and the second change prevents the
    > error from occurring in many cases.

    Hi Evan,

    Can you provide some information about the use case? Why do you think that
    it would be useful to support backing a loop device by a block device? Why
    to use the loop driver instead of dm-linear for this use case?

    Thanks,

    Bart.

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