On Thursday 31 July 2008 18:52, Benjamin Herrenschmidt wrote:
quoted text
> On Thu, 2008-07-31 at 18:48 +1000, Nick Piggin wrote:
> > > If we do this then corresponding changes should be made to the powerpc
> > > patch upon which Ben presently sits.
> >
> > Powerpc will still use the CONFIG symbol for the moment because 32-bit
> > TLB flushing has not been verified to work, so we don't want to pull in
> > the 64-bit gup. There is some discussion going on, but they probably need
> > at least to implement pte_special, and then also do RCU freeing of page
> > tables.
>
> It's just a matter of building gup.c or not .. as long as it's
> in the makefile as obj-$(CONFIG_PPC64) (as I put it in the merged
> version of the patch), the weak symbol should work.

I see. Here we are, then.