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xen-ia64-devel
[Xen-devel] RE: Linux PG_arch_1 conflict
>
http://lists.xensource.com/archives/html/xen-devel/2005-12/msg00238.html
> >
> >
> > The issue is that PG_arch_1 is reserved for arch-specific
> > usage, the paravirtualization changes for Xenlinux utilize
> > it (to mark foreign pages) because it was otherwise unused
> > in Linux/x86. But Xen is no longer an arch.
> >
> > Grep'ing for "PageForeign" in -sparse will show most (all?)
> > of the actual uses of it. Nearly all are in x86-specific
> > code. But one is in netback_init().
>
> That thread seems to already have a solution. Has anybody run it past
> Linux MM people? (Adding xen-devel to CC for greater exposure.)
If by "solution" you mean that Keir could change Xenlinux to
add a new "PG_foreign" bit and change Xenlinux/x86 (and netback)
to use that bit rather than PG_arch_1, I agree.
Comments, Keir (or others)?
Dan
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