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authorDavid S. Miller <davem@davemloft.net>2010-04-21 00:50:39 -0700
committerDavid S. Miller <davem@davemloft.net>2010-04-21 00:50:39 -0700
commite04997b13a2c2fc93af970fe95fd29a74db113e8 (patch)
treea84ec3368edc3c2568a0d6acdfa0d0e50d8cacf7 /kernel/rcupdate.c
parent6651ffc8e8bdd5fb4b7d1867c6cfebb4f309512c (diff)
parent05ce7bfe547c9fa967d9cab6c37867a9cb6fb3fa (diff)
downloadlinux-rt-e04997b13a2c2fc93af970fe95fd29a74db113e8.tar.gz
Merge branch 'master' of /home/davem/src/GIT/linux-2.6/
Diffstat (limited to 'kernel/rcupdate.c')
-rw-r--r--kernel/rcupdate.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/kernel/rcupdate.c b/kernel/rcupdate.c
index 63fe25433980..03a7ea1579f6 100644
--- a/kernel/rcupdate.c
+++ b/kernel/rcupdate.c
@@ -69,6 +69,13 @@ EXPORT_SYMBOL_GPL(rcu_scheduler_active);
#ifdef CONFIG_DEBUG_LOCK_ALLOC
+int debug_lockdep_rcu_enabled(void)
+{
+ return rcu_scheduler_active && debug_locks &&
+ current->lockdep_recursion == 0;
+}
+EXPORT_SYMBOL_GPL(debug_lockdep_rcu_enabled);
+
/**
* rcu_read_lock_bh_held - might we be in RCU-bh read-side critical section?
*