On 10/24, Gautham R Shenoy wrote: > > On Wed, Oct 24, 2007 at 05:38:18PM +0400, Oleg Nesterov wrote: > > > > So, can't we introduce 2 nested rw locks? The first one blocks cpu hotplug > > (like get_online_cpus does currently), the second one just pins cpu maps. > > I think most users needs only this, not more. > > > > Well, rw locks/sems cannot recurse. However, refcount model supports > recursion naturally. Hence the implementation.
No, no, you misunderstood! (I was unclear). I meant, can't we introduce 2 refcounted nested locks? Both implemented as get_online_cpus/cpu_hotplug_begin. Oleg. - 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/
