[PATCH 1/6] remove unused srcu_barrier()

[Lai Jiangshan]

srcu_barrier() is unused now.
This identifier is need for later.

Signed-off-by: Lai Jiangshan <laijs@xxxxxxxxxxxxxx>
---
 include/linux/srcu.h |    6 ------
 1 files changed, 0 insertions(+), 6 deletions(-)

diff --git a/include/linux/srcu.h b/include/linux/srcu.h
index 5b49d41..df8f5f7 100644
--- a/include/linux/srcu.h
+++ b/include/linux/srcu.h
@@ -49,12 +49,6 @@ struct srcu_struct {
 #endif /* #ifdef CONFIG_DEBUG_LOCK_ALLOC */
 };
 
-#ifndef CONFIG_PREEMPT
-#define srcu_barrier() barrier()
-#else /* #ifndef CONFIG_PREEMPT */
-#define srcu_barrier()
-#endif /* #else #ifndef CONFIG_PREEMPT */
-
 #ifdef CONFIG_DEBUG_LOCK_ALLOC
 
 int __init_srcu_struct(struct srcu_struct *sp, const char *name,
-- 
1.7.4.4

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