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Re: [Qemu-devel] [PATCH v5 19/38] block: Fail requests to empty BlockBac

From: Kevin Wolf
Subject: Re: [Qemu-devel] [PATCH v5 19/38] block: Fail requests to empty BlockBackend
Date: Tue, 22 Sep 2015 16:30:12 +0200
User-agent: Mutt/1.5.21 (2010-09-15)

Am 18.09.2015 um 17:22 hat Max Reitz geschrieben:
> If there is no BlockDriverState in a BlockBackend or if the tray of the
> guest device is open, fail all requests (where that is possible) with
> The reason the status of the guest device is taken into account is
> because once the guest device's tray is opened, any request on the same
> BlockBackend as the guest uses should fail. If the BDS tree is supposed
> to be usable even after ejecting it from the guest, a different
> BlockBackend must be used.
> Signed-off-by: Max Reitz <address@hidden>
> Reviewed-by: Eric Blake <address@hidden>

Do we want to include blk_drain() to make it a no-op instead of

Also, we're now introducing BlockAIOCBs with a NULL bs with your use of
abort_aio_request. I haven't carefully reviewed the implications of this
yet, but that should definitely be done before we merge the series.


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