> Besides updating the documentation, it may make sense to do something > arch-specific. Just bumping out storage on arches that don't need it > seems wasteful, as does generating bus locks on arches that don't need it. > Unfortunately, the code churn looks unavoidable. The arch specific is pretty much set_bit and friends. Bus locks on a locally owned cache line should not be very expensive on anything vaguely modern, while uniprocessor boxes usually only have to generate set_bit as a single instruction so it is interrupt safe. Alan -- To unsubscribe from this list: send the line "unsubscribe linux-arch" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html