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Re: [Qemu-block] [PATCH 1/3] block: implement bdrv_snapshot_goto for blk
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From: |
Pavel Dovgalyuk |
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Subject: |
Re: [Qemu-block] [PATCH 1/3] block: implement bdrv_snapshot_goto for blkreplay |
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Date: |
Mon, 27 Feb 2017 15:07:35 +0300 |
> From: Kevin Wolf [mailto:address@hidden
> Am 31.01.2017 um 12:57 hat Pavel Dovgalyuk geschrieben:
> > This patch enables making snapshots with blkreplay used in
> > block devices.
> >
> > Signed-off-by: Pavel Dovgalyuk <address@hidden>
>
> Specifically, I think it avoids the blkreplay_open/close sequence. Is
> this what is needed to make it work?
Then I'll need to implement bdrv_open, because there is only bdrv_file_open
for blkreplay now.
Which way is better?
> We should probably mention in the commit message the exact reason why
> implementing .bdrv_snapshot_goto, but not the other snapshot related
> callbacks, fixes things. If you confirm my assumption, I can add that
> while applying.
Pavel Dovgalyuk