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authorIngo Molnar <mingo@elte.hu>2010-04-23 11:10:28 +0200
committerIngo Molnar <mingo@elte.hu>2010-04-23 11:10:30 +0200
commit70bce3ba77540ebe77b8c0e1ac38d281a23fbb5e (patch)
tree34b09a49228f0949ff49dce66a433b0dfd83a2dc /kernel/rcupdate.c
parent6eca8cc35b50af1037bc919106dd6dd332c959c2 (diff)
parentd5a30458a90597915977f06e79406b664a41b8ac (diff)
downloadtalos-obmc-linux-70bce3ba77540ebe77b8c0e1ac38d281a23fbb5e.tar.gz
talos-obmc-linux-70bce3ba77540ebe77b8c0e1ac38d281a23fbb5e.zip
Merge branch 'linus' into perf/core
Merge reason: merge the latest fixes, update to latest -rc. Signed-off-by: Ingo Molnar <mingo@elte.hu>
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?
*
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