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From: Max Reitz <mreitz@redhat.com>
To: Denis Plotnikov <dplotnikov@virtuozzo.com>, qemu-block@nongnu.org
Cc: kwolf@redhat.com, den@virtuozzo.com, armbru@redhat.com,
	qemu-devel@nongnu.org, dgilbert@redhat.com
Subject: Re: [PATCH] blockdev: modify blockdev-change-medium to change non-removable device
Date: Fri, 18 Oct 2019 17:02:35 +0200	[thread overview]
Message-ID: <2b6cc2fe-5269-71ab-9f0b-1ab36d4dc050@redhat.com> (raw)
In-Reply-To: <20191018120950.26849-1-dplotnikov@virtuozzo.com>


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On 18.10.19 14:09, Denis Plotnikov wrote:
> The modification is useful to workaround exclusive file access restrictions,
> e.g. to implement VM migration with shared disk stored on a storage with
> the exclusive file opening model: a destination VM is started waiting for
> incomming migration with a fake image drive, and later, on the last migration
> phase, the fake image file is replaced with the real one.
> 
> Signed-off-by: Denis Plotnikov <dplotnikov@virtuozzo.com>

Isn’t this what we would want to use reopen for?

Max


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  parent reply	other threads:[~2019-10-18 15:03 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-10-18 12:09 [PATCH] blockdev: modify blockdev-change-medium to change non-removable device Denis Plotnikov
2019-10-18 14:35 ` Eric Blake
2019-10-18 15:02 ` Max Reitz [this message]
2019-10-21  6:50   ` Denis Plotnikov
2019-10-22 11:05     ` Max Reitz
2019-10-22 12:53       ` Denis Plotnikov
2019-10-22 13:18         ` Max Reitz
2019-10-22 13:24           ` Denis Plotnikov
2019-10-23 13:56       ` Vladimir Sementsov-Ogievskiy
2019-10-23 14:10         ` Vladimir Sementsov-Ogievskiy
2019-10-24  9:31           ` Max Reitz
2019-10-23 16:02         ` Kevin Wolf

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