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Re: [Qemu-block] [PATCH v2 0/8] blockdev: Further BlockBackend work

From: Eric Blake
Subject: Re: [Qemu-block] [PATCH v2 0/8] blockdev: Further BlockBackend work
Date: Mon, 9 Nov 2015 20:45:16 -0700
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.3.0

[side question]

On 11/09/2015 08:27 PM, Max Reitz wrote:
> Overall, this series adds more uses for BlockBackends and makes the code
> follow the "reference theory" more closely, in that any BlockBackend
> created (through -drive or blockdev-add) has a reference count of 1, and
> that reference should be held by the monitor. This is reflected here by
> introducing an explicit list of monitor-owned BlockBackends, which in
> turn allows us to remove bdrv_states, and, perhaps most importantly,
> blk_hide_on_behalf_of_do_drive_del().

> Although I don't suppose anyone will care much, here's that
> backport-diff against v1:
> Key:
> [----] : patches are identical
> [####] : number of functional differences between upstream/downstream patch
> [down] : patch is downstream-only
> The flags [FC] indicate (F)unctional and (C)ontextual differences, 
> respectively
> 001/8:[----] [-C] 'block: Add blk_name_taken()'
> 002/8:[----] [-C] 'block: Add blk_next_inserted()'
> 003/8:[----] [-C] 'block: Add blk_commit_all() and blk_invalidate_cache_all()'
> 004/8:[0073] [FC] 'block: Use BlockBackend more'
> 005/8:[0004] [FC] 'blockdev: Add list of monitor-owned BlockBackends'
> 006/8:[down] 'blockdev: Remove blk_hide_on_behalf_of_hmp_drive_del()'
>       (renamed from "..._on_behalf_of_do_drive_del()")

This is a nice note. Is there any way to make 'git backport-diff'
automatically do this, or does it have to be done manually when renaming

> 007/8:[0213] [FC] 'block: Move some bdrv_*_all() functions to BB'
> 008/8:[0027] [FC] 'block: Remove bdrv_states'

Eric Blake   eblake redhat com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org

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