[tip:core/rcu] rcu: Export rcu_scheduler_active

[tip-bot for Paul E. McKenney]

Commit-ID:  f5f654096487c6d526c47bb66308f9de81f091cf
Gitweb:     http://git.kernel.org/tip/f5f654096487c6d526c47bb66308f9de81f091cf
Author:     Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx>
AuthorDate: Thu, 25 Feb 2010 19:02:30 -0800
Committer:  Ingo Molnar <mingo@xxxxxxx>
CommitDate: Fri, 26 Feb 2010 08:20:46 +0100

rcu: Export rcu_scheduler_active

Kernel modules using rcu_read_lock_sched_held() must now have
access to rcu_scheduler_active, so it must be exported.

This should fix the fix for the boot-time RCU-lockdep splat.

Signed-off-by: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx>
Cc: laijs@xxxxxxxxxxxxxx
Cc: dipankar@xxxxxxxxxx
Cc: mathieu.desnoyers@xxxxxxxxxx
Cc: josh@xxxxxxxxxxxxxxxx
Cc: dvhltc@xxxxxxxxxx
Cc: niv@xxxxxxxxxx
Cc: peterz@xxxxxxxxxxxxx
Cc: rostedt@xxxxxxxxxxx
Cc: Valdis.Kletnieks@xxxxxx
Cc: dhowells@xxxxxxxxxx
LKML-Reference: <20100226030230.GA7743@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Ingo Molnar <mingo@xxxxxxx>
---
 kernel/rcupdate.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/kernel/rcupdate.c b/kernel/rcupdate.c
index 7bfa004..f1125c1 100644
--- a/kernel/rcupdate.c
+++ b/kernel/rcupdate.c
@@ -64,6 +64,7 @@ EXPORT_SYMBOL_GPL(rcu_sched_lock_map);
 #endif
 
 int rcu_scheduler_active __read_mostly;
+EXPORT_SYMBOL_GPL(rcu_scheduler_active);
 
 /*
  * This function is invoked towards the end of the scheduler's initialization
--
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