> 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 _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
