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Re: [Qemu-devel] [PATCH v3] Add support for fd: protocol
From: |
Kevin Wolf |
Subject: |
Re: [Qemu-devel] [PATCH v3] Add support for fd: protocol |
Date: |
Tue, 26 Jul 2011 16:54:10 +0200 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:5.0) Gecko/20110707 Thunderbird/5.0 |
Am 26.07.2011 16:46, schrieb Corey Bryant:
>
> On 07/26/2011 10:05 AM, Kevin Wolf wrote:
>> Am 26.07.2011 15:02, schrieb Christoph Hellwig:
>>>> I have to say I really hate it. We've been working hard on getting rid
>>>> of special cases in the qemu block layer, and this sprinkles them all
>>>> over. I'd recommend to fix your security model instead.
>> I think the problem here is more with the implementation that with the
>> intention.
>>
>> I agree that you just can't do this. A patch adding support for a fd:
>> protocol should touch block/fd.c and nothing else. You can add some
>> supporting patches that extend the generic block layer to support e.g.
>> formats that can't reopen. However, if you touch the code of other block
>> drivers, you're doing it wrong.
>
> I'll look into this approach, but on the surface it seems like this
> could prevent a lot of code reuse in block/raw-posix.c.
What I meant here is more about modifying qcow2, VMDK etc. I still need
to look into the details of what you share with raw-posix.c.
Kevin
- [Qemu-devel] [PATCH v3] Add support for fd: protocol, Corey Bryant, 2011/07/26
- Re: [Qemu-devel] [libvirt] [PATCH v3] Add support for fd: protocol, Eric Blake, 2011/07/26
- Re: [Qemu-devel] [PATCH v3] Add support for fd: protocol, Kevin Wolf, 2011/07/26
- Re: [Qemu-devel] [PATCH v3] Add support for fd: protocol, Corey Bryant, 2011/07/26
- Re: [Qemu-devel] [PATCH v3] Add support for fd: protocol, Kevin Wolf, 2011/07/27
- Re: [Qemu-devel] [PATCH v3] Add support for fd: protocol, Daniel P. Berrange, 2011/07/27
- Re: [Qemu-devel] [PATCH v3] Add support for fd: protocol, Kevin Wolf, 2011/07/27
- Re: [Qemu-devel] [PATCH v3] Add support for fd: protocol, Daniel P. Berrange, 2011/07/27