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Re: [Qemu-devel] [PATCH v9 06/11] block: Support streaming to an interme

From: Kevin Wolf
Subject: Re: [Qemu-devel] [PATCH v9 06/11] block: Support streaming to an intermediate layer
Date: Fri, 29 Apr 2016 17:07:58 +0200
User-agent: Mutt/1.5.21 (2010-09-15)

Am 04.04.2016 um 15:43 hat Alberto Garcia geschrieben:
> This makes sure that the image we are steaming into is open in


> read-write mode during the operation.
> The block job is created on the destination image, but operation
> blockers are also set on the active layer. We do this in order to
> prevent other block jobs from running in parallel in the same chain.
> See here for details on why that is currently not supported:
> [Qemu-block] RFC: Status of the intermediate block streaming work
> https://lists.gnu.org/archive/html/qemu-block/2015-12/msg00180.html
> Finally, this also unblocks the stream operation in backing files.
> Signed-off-by: Alberto Garcia <address@hidden>

Would be great to have the new op blockers already, because having to
know the active layer before streaming can be started is certainly not


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