On Thu, 17 Mar 2011, David Miller wrote: > > I had been meaning to bring this up from another perspective. > > In networking, we often only ever access objects in base or > BH context. Therefore in BH context cases we can do just > normal counter bumps without any of the special atomic or > IRQ disabling code at all. We have the __ functions for that purpose. __this_cpu_inc f.e. falls back to a simply ++ operation if the arch cannot provide something better. irqsafe_xx are only used if the context does not provide any protection and if there is the potential of the counter being incremented from an interrupt context. -- To unsubscribe from this list: send the line "unsubscribe linux-arch" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
