> > Index: linux-work/arch/powerpc/Kconfig > > =================================================================== > > --- linux-work.orig/arch/powerpc/Kconfig 2008-07-30 > > 13:17:06.000000000 +1000 > > +++ linux-work/arch/powerpc/Kconfig 2008-07-30 13:27:40.000000000 > > +1000 > > @@ -42,6 +42,9 @@ config GENERIC_HARDIRQS > > bool > > default y > > > > +config HAVE_GET_USER_PAGES_FAST > > + def_bool PPC64 > > + > > config HAVE_SETUP_PER_CPU_AREA > > def_bool PPC64 > > what's ppc64 specific here?
Mostly _PAGE_SPECIAL (which I do plan to add to embedded which is why I've been trying hard to free a PTE bit :-) and the way we synchronize with the freeing of page tables (ppc64 uses RCU, ppc32 doesn't, we'd have to find something to keep fast gup in sync). Ben. _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-dev
