On Fri, Sep 2, 2011 at 1:07 PM, Jeremy Fitzhardinge <jeremy@xxxxxxxx> wrote: > > I don't know whether that fastpath code is small enough to consider > inlining everywhere? No. There's no point in inlining something that ends up containing a conditional function call: gcc will have to effectively save/restore registers around that thing anyway, so you lose a lot of the advantages of inlining. So I think it's better done as an out-of-line function, which I thought we did for spinlocks anyway. Also, do you run with CONFIG_OPTIMIZE_SIZE? Without that, gcc should be smart enough to make a "likely()" case be a fall-through. Linus -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html