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Re: [Qemu-devel] [PATCH v9 08/10] qapi: Add transaction support to block


From: Stefan Hajnoczi
Subject: Re: [Qemu-devel] [PATCH v9 08/10] qapi: Add transaction support to block-dirty-bitmap-{add, enable, disable}
Date: Tue, 9 Dec 2014 17:45:46 +0000
User-agent: Mutt/1.5.23 (2014-03-12)

On Mon, Dec 01, 2014 at 03:30:14PM -0500, John Snow wrote:
> From: Fam Zheng <address@hidden>
> 
> This adds three qmp commands to transactions.
> 
> Users can stop a dirty bitmap, start backup of it, and start another
> dirty bitmap atomically, so that the dirty bitmap is tracked
> incrementally and we don't miss any write.
> 
> Signed-off-by: Fam Zheng <address@hidden>
> Signed-off-by: John Snow <address@hidden>
> Reviewed-by: Max Reitz <address@hidden>
> ---
>  blockdev.c       | 85 
> ++++++++++++++++++++++++++++++++++++++++++++++++++++++++
>  qapi-schema.json |  5 +++-
>  2 files changed, 89 insertions(+), 1 deletion(-)

Please the following commint on block-next for examples of how to
acquire/release AioContext in qmp_transaction:

commit 6a50d4a7f758436828091336c8905b6fa870f8cb
Author: Stefan Hajnoczi <address@hidden>
Date:   Fri Nov 21 10:48:59 2014 +0000

    blockdev: acquire AioContext in QMP 'transaction' actions

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