Re: [Qemu-devel] [RFC PATCH 1/1] ceph/rbd block driver for qemu-kvm

[Avi Kivity]

On 05/25/2010 04:54 PM, Anthony Liguori wrote:
> On 05/25/2010 08:36 AM, Avi Kivity wrote:
> > We'd need a kernel-level generic snapshot API for this eventually.
> >
> > > or (2) implement BUSE to complement FUSE and CUSE to enable proper 
> > > userspace block devices.
> >
> > Likely slow due do lots of copying.  Also needs a snapshot API.
>
> The kernel could use splice.

Still can't make guest memory appear in (A)BUSE process memory without 
either mmu tricks (vmsplice in reverse) or a copy.  May be workable for 
an (A)BUSE driver that talks over a network, and thus can splice() its 
way out.

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error compiling committee.c: too many arguments to function