> So if you have ll/sc on the whole word concurrent with the half-word > store, you can loose the half-word store like: > > lwarx &tickets > ... sth &tail > stwcd &tickets > > > The stwcd will over-write the tail store.
Oh wait, that's stupid, it will invalidate the lock and fail the store and make it try again, so you could try and combine the load, but you'd need an extra shift instruction instead of an extra load. Not sure that's a valid trade-off.. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
