[libvirt] [Qemu-devel] [PATCH v3] Add support for fd: protocol

Eric Blake eblake at redhat.com
Tue Jul 26 14:02:02 UTC 2011

On 07/26/2011 07:02 AM, Christoph Hellwig wrote:
> 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.

What is it that you hate - the particular qemu implementation expressed 
by this patch (in which case, we're all ears for a better 
implementation), or the need for fd passing (which libvirt is strongly 
in favor of, and which there really is no other way to fix the security 
model to work well with file systems like NFS that lack per-file 
labels)?  In my mind, increased security trumps poor aesthetics - if the 
patch really does make it possible to enhance security, then the special 
casing to support the patch is worth it.

Eric Blake   eblake at redhat.com    +1-801-349-2682
Libvirt virtualization library http://libvirt.org

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