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Date: Mon, 19 Nov 2012 15:16:34 +0100
From: Stefan Priebe - Profihost AG <s.priebe@profihost.ag>
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Subject: Re: [Qemu-devel] scsi-hd with discard_granularity and unmap results
 in Aborted Commands
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To: Paolo Bonzini <pbonzini@redhat.com>
Cc: josh.durgin@inktank.com, qemu-devel@nongnu.org, sage@newdream.net

Hi Paolo,
Hi Josh,

i started to port the iscsi fixes to rbd. The one think i'm missing is. 
How to tell / call rbd to cancel I/O on the server side?

I grepped librbd source code for abort / cancel but didn't find anything.

Qemu must be able to tell rbd to cancel a specific I/O request.

Greets,
Stefan
Am 19.11.2012 14:06, schrieb Paolo Bonzini:
> Il 19/11/2012 14:01, Stefan Priebe - Profihost AG ha scritto:
>>> The right behavior is to return
>>> only after the target says whether the cancellation was done or not.
>>> For libiscsi, it was implemented by the commits you mention.
>>
>> So the whole bunch of changes is needed for rbd?
>
> Something like the first three:
>
> 1bd075f29ea6d11853475c7c42734595720c3ac6
> cfb3f5064af2d2e29c976e292c9472dfe9d61e31
> 27cbd828c617944c0f9603763fdf4fa87e7ad923
>
> Paolo
>