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Re: [Libvir] Re: parted/LVM for ET [Storage manager initial requirements and thoughts



On Thu, Jun 14, 2007 at 07:16:21PM +0200, Jim Meyering wrote:
> "Daniel P. Berrange" <berrange redhat com> wrote:
> >> > And (4) can be done by libvirtd using ordinary POSIX calls, so no
> >> > external library support is needed, just some work to remote those
> >> > operations (which is mostly done).
> >>
> >> Isn't doing #4 portably pretty tricky?  There's still too much
> >> variation, because many of the details aren't covered by POSIX.
> >> At least for GNU df, it was -- it uses the mountlist module from gnulib:
> >
> > We don't need to enumerate all the mount points. The admin will simply
> 
> Lucky you :)
> 
> > configure particulra directories (eg /var/lib/xen/images) as storage
> > repositories. So we only need to be able to call statfs/statvfs on
> > particular paths where we want to create a new image.
> >
> >> Of course, if your target is just Linux, then it is easier.
> >
> > Minimally we have to target Solaris too, since we know they already use
> > libvirt.
> 
> Ok.  Then this (also used by df) might help, if you ever
> need portability to e.g., older Solaris, *BSD, AIX, HP-UX, etc.
> 
> http://cvs.sv.gnu.org/viewcvs/gnulib/lib/fsusage.c?root=gnulib&view=markup

Unfortunately we can't use that. The license is GPL, while libvirt needs
to be LGPL :-(

Dan.
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