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From: Peter Krempa <pkrempa@redhat.com>
To: Kevin Wolf <kwolf@redhat.com>
Cc: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>,
	Alberto Garcia <berto@igalia.com>,
	qemu-devel@nongnu.org, qemu-block@nongnu.org,
	Max Reitz <mreitz@redhat.com>
Subject: Re: [RFC PATCH v2 0/4] Allow changing bs->file on reopen
Date: Fri, 12 Feb 2021 15:41:59 +0100	[thread overview]
Message-ID: <20210212144159.GP54538@angien.pipo.sk> (raw)
In-Reply-To: <20210210172657.GJ5144@merkur.fritz.box>

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.



  reply	other threads:[~2021-02-12 14:43 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-02-08 18:44 [RFC PATCH v2 0/4] Allow changing bs->file on reopen Alberto Garcia
2021-02-08 18:44 ` [RFC PATCH v2 1/4] block: " Alberto Garcia
2021-02-09  7:37   ` Vladimir Sementsov-Ogievskiy
2021-02-10 16:52   ` Kevin Wolf
2021-02-16 12:06     ` Alberto Garcia
2021-02-08 18:44 ` [RFC PATCH v2 2/4] iotests: Update 245 to support replacing files with x-blockdev-reopen Alberto Garcia
2021-02-10 17:17   ` Kevin Wolf
2021-02-08 18:44 ` [RFC PATCH v2 3/4] block: Support multiple reopening " Alberto Garcia
2021-02-09  8:03   ` Vladimir Sementsov-Ogievskiy
2021-02-16 16:33     ` Alberto Garcia
2021-02-24 12:33     ` Kevin Wolf
2021-02-25 17:02       ` Vladimir Sementsov-Ogievskiy
2021-03-01 11:07         ` Kevin Wolf
2021-03-01 11:57           ` Vladimir Sementsov-Ogievskiy
2021-03-01 12:21           ` Peter Krempa
2021-02-26 11:51       ` Alberto Garcia
2021-02-08 18:44 ` [RFC PATCH v2 4/4] iotests: Test reopening multiple devices at the same time Alberto Garcia
2021-02-09  7:15 ` [RFC PATCH v2 0/4] Allow changing bs->file on reopen Vladimir Sementsov-Ogievskiy
2021-02-10 17:26 ` Kevin Wolf
2021-02-12 14:41   ` Peter Krempa [this message]
2021-02-16 16:36   ` Alberto Garcia
2021-02-16 16:48     ` Kevin Wolf
2021-02-16 17:25       ` Alberto Garcia
2021-02-16 17:51         ` Kevin Wolf

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