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| author | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2009-09-23 16:18:13 -0700 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-10-05 21:01:28 +0200 |
| commit | 162cc2794df37662beb7f97ddd1dd5bffaf85e9a (patch) | |
| tree | 88619bce8fce70c4f19c1a5809448d7b624bbb9e /kernel/rcupdate.c | |
| parent | 9b2619aff0332e95ea5eb7a0d75b0208818d871c (diff) | |
| download | lwn-162cc2794df37662beb7f97ddd1dd5bffaf85e9a.tar.gz lwn-162cc2794df37662beb7f97ddd1dd5bffaf85e9a.zip | |
rcu: Fix rcu_lock_map build failure on CONFIG_PROVE_LOCKING=y
Move the rcu_lock_map definition from rcutree.c to rcupdate.c so that
TINY_RCU can use lockdep.
Reported-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/rcupdate.c')
| -rw-r--r-- | kernel/rcupdate.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/kernel/rcupdate.c b/kernel/rcupdate.c index 8e795133b33d..4a189ea18b48 100644 --- a/kernel/rcupdate.c +++ b/kernel/rcupdate.c @@ -46,6 +46,13 @@ #include <linux/module.h> #include <linux/kernel_stat.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 + enum rcu_barrier { RCU_BARRIER_STD, RCU_BARRIER_BH, |