On Thu, 3 Aug 2006, Andi Kleen wrote: > > > Thats a good goal but what about the rest of us who have to maintain > > additional forms of bit operations for all architectures. How much is this > > burden? > > I don't think it's that big an issue because most architectures either > use always locked bitops already or don't need them because they don't do > SMP. Those architectures that always use locked bitops or dont need them would not need to be modified if we put this in a special fail. I think this is a i386 speciality here? Those operations are only needed for special xen driver and not for regular kernel code! > So it will be fine with just a asm-generic header that defines them > to the normal bitops. Not much burden. asm-generic/xen-bitops.h asm-i386/xen-bitops.h is even less of a burden and would only require a #include <asm/xen-bitops.h> for those special xen drivers.
