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Re: adding /dev/xen/gnttab
> On Thu, Sep 02, 2010 at 05:16:12PM +0200, Christoph Egger wrote:
> > > On Thu, Sep 02, 2010 at 04:00:44PM +0200, Christoph Egger wrote:
> > > >
> > > > Hi!
> > > >
> > > > For gnttab support a new device file is needed for
> > > > a new set of ioctl()'s.
> > >
> > [...]
> > > > Attached patch adds /dev/xen/gnttab.
> I don't think it's approrpiate to commit this patch before the
> kernel side is written then. they should be commited as a whole.
I think, the gnttab should be implemented as a pseudo-device
in the kernel.
Also the device file should be implemented as a clonable device.
I need to implement the operations
open, close, ioctl and mmap.
How do I implement mmap ? file(9) and filedesc(9) don't
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