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xen-devel
Re: [Xen-devel] Re: [PATCH v6] xen pci backend driver.
On Mon, Apr 25, 2011 at 11:58:50AM -0700, Jesse Barnes wrote:
> On Wed, 20 Apr 2011 17:07:19 -0400
> Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx> wrote:
>
> > The following patch implements the Xen pci backend for upstream Linux.
> > This is the host side counterpart to the frontend driver in
> > drivers/pci/xen-pcifront.c. The PV protocol is also implemented by
> > frontend drivers in other OSes too, such as the BSDs.
> >
> > This driver has a long history as an out of tree driver but I am
> > submitting it here as a single monolithic patch to aid review. Once it
> > has been reviewed and is considered suitable for merging can we perhaps
> > consider merging the equivalent git branch which maintains much of
> > history?
>
> It looks pretty clean at first glance (though 128k worth of patch isn't
> an ideal way to split it).
4K lines of code is a lot :-) Thank you for taking a look at it.
>
> But maybe the back end belongs in arch/x86/xen as it's really a arch
> specific PCI implementation at heart? I don't want to be a bottleneck
> for any Xen specific PCI patches in the future, and other arches have a
> similar split (though not always with an ideal core vs arch split).
I was thinking about having it in the drivers/* as ideally it should
be a module. You really don't need to have it built in. I am not that
worried about you being a bottleneck - I am OK asking two weeks before
a merge for you to pull from my tree if I have some patches for it?
Or is there some other bottleneck that I am not aware of?
>
> Figuring out some way to preserve the git history is probably a good
> idea, assuming it's not too much of a mess. If it is, a more
> reasonable split and history using rebase could probably be contrived
> before merging it.
<nods>
>
> --
> Jesse Barnes, Intel Open Source Technology Center
>
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> Xen-devel mailing list
> Xen-devel@xxxxxxxxxxxxxxxxxxx
> http://lists.xensource.com/xen-devel
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