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Re: [Qemu-devel] Block layer meeting notes from June 10/11
From: |
Jeff Cody |
Subject: |
Re: [Qemu-devel] Block layer meeting notes from June 10/11 |
Date: |
Fri, 13 Jun 2014 09:53:55 -0400 |
User-agent: |
Mutt/1.5.21 (2010-09-15) |
On Fri, Jun 13, 2014 at 09:28:28PM +0800, Stefan Hajnoczi wrote:
>
<snip>
> * Mutual exclusion of operations/background jobs (bs->in_use / BlockOpType)
> * Streaming in two different parts of the backing chain - allowed?
> (Benoît though that not, but does anything break?)
> * Does streaming only require that streamed images stay read-only
> (i.e. backing chain segment on which the operation is performed)
> * Live commit in the opposite direction at the same time?
>
> Action:
> * Draw up matrix of operations (mirror, stream, resize, etc)
> * Make op blocker mechanism use matrix as data instead of code
> (define an array)
> * Enforce that new QMP/QAPI commands and block jobs add themselves to
> the matrix
> * Recursively add blockers to child nodes (driver method?) [Benoit]
>
Benoit, you have quite a few items on your list - would it be useful
if I worked on this? It would dovetail nicely with the node-name
commit/stream patches.
Thanks,
Jeff