[Xen-devel] [PATCH v2 09/20] xen/biomerge: Don't allow biovec to be merge when Linux is not using 4KB page

[Stefano Stabellini]

On Fri, 17 Jul 2015, Julien Grall wrote:
> On 17/07/15 14:20, Stefano Stabellini wrote:
> > We would have to run some benchmarks, but I think it would still be a
> > win. We should write an ad-hoc __pfn_to_mfn translation function that
> > operates on a range of pfns and simply checks whether an entry is
> > present in that range. It should be just as fast as __pfn_to_mfn. I
> > would definitely recommend it.
> 
> I'd like to see a basic support of 64KB support on Xen pushed in Linux
> upstream before looking to possible improvement in the code. Can we
> defer this as the follow-up of this series?

Yes, maybe add a TODO comment in the code.