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| author | Ming Lei <tom.leiming@gmail.com> | 2009-07-16 15:44:29 +0200 |
|---|---|---|
| committer | Peter Zijlstra <a.p.zijlstra@chello.nl> | 2009-07-24 10:52:03 +0200 |
| commit | 12f3dfd022d7e616757a94f0538d3d525d806a16 (patch) | |
| tree | 22221bcfa6edcc47094bd87862eb9cc5402a5799 /kernel/lockdep_internals.h | |
| parent | 4dd861d6467007681991d8ec079d928db2018cbb (diff) | |
| download | linux-12f3dfd022d7e616757a94f0538d3d525d806a16.tar.gz linux-12f3dfd022d7e616757a94f0538d3d525d806a16.tar.bz2 linux-12f3dfd022d7e616757a94f0538d3d525d806a16.zip | |
lockdep: Add statistics info for max bfs queue depth
Add BFS statistics to the existing lockdep stats.
Signed-off-by: Ming Lei <tom.leiming@gmail.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <1246201486-7308-10-git-send-email-tom.leiming@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/lockdep_internals.h')
| -rw-r--r-- | kernel/lockdep_internals.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/kernel/lockdep_internals.h b/kernel/lockdep_internals.h index b115aaa0bf35..6baa8807efdd 100644 --- a/kernel/lockdep_internals.h +++ b/kernel/lockdep_internals.h @@ -138,6 +138,7 @@ extern atomic_t nr_find_usage_backwards_recursions; #endif +extern unsigned int max_bfs_queue_depth; extern unsigned long nr_list_entries; extern struct lock_list list_entries[MAX_LOCKDEP_ENTRIES]; extern unsigned long bfs_accessed[]; @@ -191,7 +192,7 @@ static inline int __cq_dequeue(struct circular_queue *cq, unsigned long *elem) return 0; } -static inline int __cq_get_elem_count(struct circular_queue *cq) +static inline unsigned int __cq_get_elem_count(struct circular_queue *cq) { return (cq->rear - cq->front)&(MAX_CIRCULAR_QUE_SIZE-1); } |