Re: Fwd: Re: struct page field arrangement

[Keir Fraser <keir@xensource.com>]

On 1/3/07 12:50, "Jan Beulich" <jbeulich@novell.com> wrote:

> I didn't check what private is being used for - while it can't be used for
> PageForeign's destructor pointer, perhaps netback could use that one
> rather than index? Or, even more likely, netback could use mapping if
> PageForeign was switched over to index (while mapping overlays ptl, that
> is benign to netback as it's not dealing with pte pages). But of course,
> this requires thorough auditing of other uses of index.

Since PageForeign is only used for pagetables (for which you checked ->index
should be okay) and for skbuff data (where we already use ->index in
netback) then changing PageForeign to put the callback in ->index should be
fine.

 -- Keir