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From: Fam Zheng <famz@redhat.com>
To: Christopher Pereira <kripper@imatronix.cl>
Cc: qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] Can qemu reopen image files?
Date: Mon, 19 Dec 2016 09:07:43 +0800	[thread overview]
Message-ID: <20161219010743.GA2719@lemon> (raw)
In-Reply-To: <53e52412-cd32-cb9e-2261-882a7b5b84ea@imatronix.cl>

On Sun, 12/18 20:52, Christopher Pereira wrote:
> Hi,
> 
> We are doing a "qemu-img convert" operation (qcow2, with compression) to
> shorten the backing-chain (in the middle of the backing-chain).
> In order to force qemu to reopen files, we do a save and restore operation.
> Is there a faster way to reopen image files using virsh or qemu?

No, don't use qemu-img when the image is in use by QEMU. You want to use
"block-commit" command provided by QMP.

Fam

  reply	other threads:[~2016-12-19  1:07 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-12-18 23:52 [Qemu-devel] Can qemu reopen image files? Christopher Pereira
2016-12-19  1:07 ` Fam Zheng [this message]
2016-12-19 13:55   ` Stefan Hajnoczi
2016-12-19 15:03     ` Christopher Pereira
2016-12-19 15:48       ` Eric Blake
2016-12-19 16:24         ` Christopher Pereira
2016-12-28 18:51           ` Christopher Pereira
2016-12-29 13:42             ` Eric Blake
2016-12-29 13:52               ` Eric Blake
2016-12-29 13:55                 ` Eric Blake
2016-12-29 13:39           ` Eric Blake

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