Re: [PATCH v2 09/15] xen/gntdev: use mmu_range_notifier_insert

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On Thu, Nov 07, 2019 at 05:54:52PM -0500, Boris Ostrovsky wrote:
> On 11/7/19 3:36 PM, Jason Gunthorpe wrote:
> > On Tue, Nov 05, 2019 at 10:16:46AM -0500, Boris Ostrovsky wrote:
> >
> >>> So, I suppose it can be relaxed to a null test and a WARN_ON that it
> >>> hasn't changed?
> >> You mean
> >>
> >> if (use_ptemod) {
> >>         WARN_ON(map->vma != vma);
> >>         ...
> >>
> >>
> >> Yes, that sounds good.
> > I amended my copy of the patch with the above, has this rework shown
> > signs of working?
> 
> Yes, it works fine.
> 
> But please don't forget notifier ops initialization.
> 
> With those two changes,
> 
> Reviewed-by: Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>

Thanks, I got both things. I'll forward this toward linux-next and
repost a v3 

Jason





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