kernel/locking/rt.c: add missing EXPORT_SYMBOL for rt_down_write_nested_lock() needed by f2fs

[Joakim Hernberg <jbh@xxxxxxxxxx>]

I found this trying to build 3.14.2-rt3.

Signed-off-by: Joakim Hernberg <jhernberg@xxxxxxxxxx>
---
 kernel/locking/rt.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/kernel/locking/rt.c b/kernel/locking/rt.c
index 055a3df..3a57b3a 100644
--- a/kernel/locking/rt.c
+++ b/kernel/locking/rt.c
@@ -366,6 +366,7 @@ void rt_down_write_nested_lock(struct rw_semaphore *rwsem,
        rwsem_acquire_nest(&rwsem->dep_map, 0, 0, nest, _RET_IP_);
        rt_mutex_lock(&rwsem->lock);
 }
+EXPORT_SYMBOL(rt_down_write_nested_lock);
 
 int  rt_down_read_trylock(struct rw_semaphore *rwsem)
 {


-- 

   Joakim
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