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Subject[RFC 11/60] locking/lockdep: Increase number of supported lockdep subclasses
Date
With coscheduling the number of required classes is twice the depth of
the scheduling domain hierarchy. For a 256 CPU system, there are eight
levels at most. Adjust the number of subclasses, so that lockdep can
still be used on such systems.

Signed-off-by: Jan H. Schönherr <jschoenh@amazon.de>
---
include/linux/lockdep.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/lockdep.h b/include/linux/lockdep.h
index b0d0b51c4d85..d93a5ec3077f 100644
--- a/include/linux/lockdep.h
+++ b/include/linux/lockdep.h
@@ -17,7 +17,7 @@ struct lockdep_map;
extern int prove_locking;
extern int lock_stat;

-#define MAX_LOCKDEP_SUBCLASSES 8UL
+#define MAX_LOCKDEP_SUBCLASSES 16UL

#include <linux/types.h>

--
2.9.3.1.gcba166c.dirty
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