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Re: [Qemu-devel] [Qemu-block] [RFC PATCH] qemu-io: add drain/undrain cmd
From: |
Stefan Hajnoczi |
Subject: |
Re: [Qemu-devel] [Qemu-block] [RFC PATCH] qemu-io: add drain/undrain cmd |
Date: |
Wed, 17 May 2017 13:10:24 +0100 |
User-agent: |
Mutt/1.8.0 (2017-02-23) |
On Mon, May 15, 2017 at 12:02:43PM +0200, Peter Lieven wrote:
> I would like to add a feature to Qemu to drain all traffic from a block so
> that
> I can take external snaphosts without the risk to that in the middle of a
> write
> operation. Its meant for cases where where QGA freeze/thaw is not available.
>
> For me its enough to have this through qemu-io, but Kevin asked me to check
> if its not worth to have a stable API for it and present it via QMP/HMP.
>
> What are your thoughts?
Are the existing snapshot and blockjobs not sufficient for taking
external snapshots?
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- Re: [Qemu-devel] [RFC PATCH] qemu-io: add drain/undrain cmd, (continued)
- Re: [Qemu-devel] [RFC PATCH] qemu-io: add drain/undrain cmd, Peter Lieven, 2017/05/15
- Re: [Qemu-devel] [RFC PATCH] qemu-io: add drain/undrain cmd, Fam Zheng, 2017/05/15
- Re: [Qemu-devel] [RFC PATCH] qemu-io: add drain/undrain cmd, Peter Lieven, 2017/05/15
- Re: [Qemu-devel] [RFC PATCH] qemu-io: add drain/undrain cmd, Fam Zheng, 2017/05/15
- Re: [Qemu-devel] [RFC PATCH] qemu-io: add drain/undrain cmd, Peter Lieven, 2017/05/15
- Re: [Qemu-devel] [RFC PATCH] qemu-io: add drain/undrain cmd, Fam Zheng, 2017/05/15
- Re: [Qemu-devel] [RFC PATCH] qemu-io: add drain/undrain cmd, Peter Lieven, 2017/05/15
- Re: [Qemu-devel] [RFC PATCH] qemu-io: add drain/undrain cmd, Fam Zheng, 2017/05/15
- Re: [Qemu-devel] [RFC PATCH] qemu-io: add drain/undrain cmd, Kevin Wolf, 2017/05/15
- Re: [Qemu-devel] [RFC PATCH] qemu-io: add drain/undrain cmd, Peter Lieven, 2017/05/15
Re: [Qemu-devel] [Qemu-block] [RFC PATCH] qemu-io: add drain/undrain cmd,
Stefan Hajnoczi <=