[RFC/T PATCH 09/12] lockdep: increase MAX_LOCK_DEPTH

[Peter Zijlstra]

we can easily hold PAGE_VEC (and more in places) page locks.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
---
 include/linux/sched.h |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Index: linux-2.6/include/linux/sched.h
===================================================================
--- linux-2.6.orig/include/linux/sched.h
+++ linux-2.6/include/linux/sched.h
@@ -1246,7 +1246,7 @@ struct task_struct {
 	int softirq_context;
 #endif
 #ifdef CONFIG_LOCKDEP
-# define MAX_LOCK_DEPTH 30UL
+# define MAX_LOCK_DEPTH 48UL
 	u64 curr_chain_key;
 	int lockdep_depth;
 	struct held_lock held_locks[MAX_LOCK_DEPTH];

--

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