commit c1174876874dcf8986806e4dad3d7d07af20b439
author Peter Zijlstra <a.p.zijlstra@chello.nl> Thu May 31 14:47:33 2012 +0200
committer Ingo Molnar <mingo@kernel.org> Wed Jun 06 16:52:26 2012 +0200
tree 7e2ea14ba9421bddd63e1810716f1929c753e28b
parent 7f1b43936f0ecad14770634c021cf4a929aec74d

sched: Fix domain iteration

Weird topologies can lead to asymmetric domain setups. This needs
further consideration since these setups are typically non-minimal
too.

For now, make it work by adding an extra mask selecting which CPUs
are allowed to iterate up.

The topology that triggered it is the one from David Rientjes:

	10 20 20 30
	20 10 20 20
	20 20 10 20
	30 20 20 10

resulting in boxes that wouldn't even boot.

Reported-by: David Rientjes <rientjes@google.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/n/tip-3p86l9cuaqnxz7uxsojmz5rm@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>