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| author | Peter Zijlstra <a.p.zijlstra@chello.nl> | 2007-10-11 22:11:12 +0200 |
|---|---|---|
| committer | Peter Zijlstra <a.p.zijlstra@chello.nl> | 2007-10-11 22:11:12 +0200 |
| commit | 851a67b825540a8e00c0be3ee25e4627ba8b133b (patch) | |
| tree | 07afd72ad74a392cb30cefcd01acdfd9b01282d3 /kernel/rcupdate.c | |
| parent | 34a3d1e83708702ac6cb872215e68cd07dae298b (diff) | |
| download | lwn-851a67b825540a8e00c0be3ee25e4627ba8b133b.tar.gz lwn-851a67b825540a8e00c0be3ee25e4627ba8b133b.zip | |
lockdep: annotate rcu_read_{,un}lock{,_bh}
lockdep annotate rcu_read_{,un}lock{,_bh} in order to catch imbalanced
usage.
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Diffstat (limited to 'kernel/rcupdate.c')
| -rw-r--r-- | kernel/rcupdate.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/kernel/rcupdate.c b/kernel/rcupdate.c index 2c2dd8410dc4..130214f3d229 100644 --- a/kernel/rcupdate.c +++ b/kernel/rcupdate.c @@ -49,6 +49,14 @@ #include <linux/cpu.h> #include <linux/mutex.h> +#ifdef CONFIG_DEBUG_LOCK_ALLOC +static struct lock_class_key rcu_lock_key; +struct lockdep_map rcu_lock_map = + STATIC_LOCKDEP_MAP_INIT("rcu_read_lock", &rcu_lock_key); + +EXPORT_SYMBOL_GPL(rcu_lock_map); +#endif + /* Definition for rcupdate control block. */ static struct rcu_ctrlblk rcu_ctrlblk = { .cur = -300, |