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Re: [Qemu-block] [PATCH v3 6/7] block: Handle null backing link

From: Eric Blake
Subject: Re: [Qemu-block] [PATCH v3 6/7] block: Handle null backing link
Date: Sat, 24 Feb 2018 15:09:05 -0600
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.6.0

On 02/24/2018 09:40 AM, Max Reitz wrote:
Instead of converting all "backing": null instances into "backing": "",
handle a null value directly in bdrv_open_inherit().

This enables explicitly null backing links for json:{} filenames.

Signed-off-by: Max Reitz <address@hidden>
Reviewed-by: Alberto Garcia <address@hidden>
  block.c                    |  4 +++-
  blockdev.c                 | 14 --------------
  tests/qemu-iotests/089     | 20 ++++++++++++++++++++
  tests/qemu-iotests/089.out |  8 ++++++++
  4 files changed, 31 insertions(+), 15 deletions(-)

Reviewed-by: Eric Blake <address@hidden>

Eric Blake, Principal Software Engineer
Red Hat, Inc.           +1-919-301-3266
Virtualization:  qemu.org | libvirt.org

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