Re: exclusive cpusets broken with cpu hotplug

[Paul Jackson]

Dinakar wrote:
> I have a patch (though a very old one...) for handling hotplug and cpusets.
> However there were some ugly locking issues and nesting of locks ...

The interaction of cpusets and hotplug should be in good shape.  Look
in kernel/cpuset.c for CONFIG_HOTPLUG_CPU and CONFIG_MEMORY_HOTPLUG,
and you will see the two routines to call for cpu and memory hotplug
events, cpuset_handle_cpuhp() and cpuset_track_online_nodes().

The problem area is the interaction of dynamic sched domains and
cpusets with hot plug events.

-- 
                  I won't rest till it's the best ...
                  Programmer, Linux Scalability
                  Paul Jackson <pj@xxxxxxx> 1.925.600.0401
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/