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Re: [RFC PATCH v2 0/4] Allow changing bs->file on reopen

From: Peter Krempa
Subject: Re: [RFC PATCH v2 0/4] Allow changing bs->file on reopen
Date: Fri, 12 Feb 2021 15:41:59 +0100
User-agent: Mutt/1.14.6 (2020-07-11)

On Wed, Feb 10, 2021 at 18:26:57 +0100, Kevin Wolf wrote:
> Am 08.02.2021 um 19:44 hat Alberto Garcia geschrieben:
> > Hi,
> > 
> > this series allows changing bs->file using x-blockdev-reopen. Read
> > here for more details:
> > 
> >    https://lists.gnu.org/archive/html/qemu-block/2021-01/msg00437.html
> > 
> > Version 2 of the series introduces a very significant change:
> > x-blockdev-reopen now receives a list of BlockdevOptions instead of
> > just one, so it is possible to reopen multiple block devices using a
> > single transaction.
> Adding Peter to Cc for this one.

For now I've only used blockdev-reopen for turning backing files
read-write and back for bitmap manipulation. In such case I presume it
doesn't really make sense to use the batching if I ever need to reopen
multiple images.

Other than that, the blockdev-reopen code is still dormant in libvirt so
it's easy to add the extra required wrapping without any problem.

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