Hello, On Thu, Dec 06, 2012 at 02:01:35AM +0530, Srivatsa S. Bhat wrote: > Yes, that _sounds_ sufficient, but IMHO it won't be, in practice. The > *number* of call-sites that you need to convert from preempt_disable/enable > to get/put_online_cpus_atomic() won't be too many, however the *frequency* > of usage of those call-sites can potentially be very high.
I don't think that will be the case and, even if it is, doing it this way would make it difficult to tell. The right thing to do is replacing stop_machine with finer grained percpu locking first. Refining it further should happen iff that isn't enough and there isn't an simpler solution. So, let's please do the simple conversion first. Thanks. -- tejun -- 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/
