Re: [RFC][PATCH 1/7] lockdep: Fix combinatorial explosion in lock subgraph traversal.

David Miller
2008-08-05T08:34:57Z

From: Peter Zijlstra <a.p.zijlstra@chello.nl>
Date: Mon, 04 Aug 2008 15:03:18 +0200

> When we traverse the graph, either forwards or backwards, we
> are interested in whether a certain property exists somewhere
> in a node reachable in the graph.
...
> Signed-off-by: David S. Miller <davem@davemloft.net>
> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>

Peter, when Ingo added this to his tree he needed to add a build
fix of some sort. Did you include that here?

I think the problem was that if CONFIG_PROVE_LOCKING is not
set, we need to add nop inline versions of lockdep_count_*_deps()
in kernel/lockdep_internals.h