> Sorry for late reply. Here is the update patch (I hope the last one):
> http://www.netbsd.org/~rmind/workqueue-4.diff

seems reasonable to me.

> I would like to have CPU_ALIGN_SIZE as a general-usage constant, but Andrew
> noted, that putting MULTIPROCESSOR in param.h isn't good. Perhaps moving it
> to cpu.h would be appropriate?

if it's a general preference for not having MULTIPROCESSOR ifdefs,
i don't think moving it to cpu.h makes much sense.

YAMAMOTO Takashi