From: John Kacur <jkacur@redhat.com>

ERROR: "in_serving_softirq" [net/sched/cls_cgroup.ko] undefined!

The above can be fixed by exporting in_serving_softirq

Link: http://lkml.kernel.org/r/1321235083-21756-2-git-send-email-jkacur@redhat.com

Cc: stable-rt@vger.kernel.org
Reviewed-by: Paul E. McKenney <redacted>
Signed-off-by: John Kacur <jkacur@redhat.com>
Signed-off-by: Thomas Gleixner <redacted>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 kernel/softirq.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/kernel/softirq.c b/kernel/softirq.c
index e8756aa..026a283 100644
--- a/kernel/softirq.c
+++ b/kernel/softirq.c

@@ -447,6 +447,7 @@ int in_serving_softirq(void)
 	preempt_enable();
 	return res;
 }
+EXPORT_SYMBOL(in_serving_softirq);
 
 /*
  * Called with bh and local interrupts disabled. For full RT cpu must

-- 
1.7.7.1