On Wed, 11 Sep 2013 13:25:52 -0400 Konrad Rzeszutek Wilk <[email protected]> wrote:
> commit 97ce2c88f9ad42e3c60a9beb9fca87abf3639faa > Author: Jeremy Fitzhardinge <[email protected]> > Date: Wed Oct 12 16:17:54 2011 -0700 > > jump-label: initialize jump-label subsystem much earlier > > Initialize jump_labels much, much earlier, so they're available for use > during system setup. > > Signed-off-by: Jeremy Fitzhardinge <[email protected]> > Acked-by: Peter Zijlstra <[email protected]> > > > implies that yes. Unfortunately it does not. All that patch did was move jump_label_init() up more. If anything, it implies "no". The question is, can we enable jump_labels before jump_label_init()? Note, we may still be able to (as it seems to work), the thing is, the only thing that static_key_slow_inc() does is to tell jump_label_init() to enable it. Before jump_label_init() is called, nothing has changed. No code modification, all users of paravirt_ticketlocks_enabled are still off. -- Steve -- 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/
