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rcu: Remove unused srcu_barrier()

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The old srcu_barrier() macro is now unused.  This commit removes it so
that it may be used for the SRCU flavor of rcu_barrier(), which will in
turn be needed to allow the upcoming call_srcu() to be used from within
modules.

Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
This commit is contained in:
Lai Jiangshan 2012-03-06 17:57:33 +08:00 committed by Paul E. McKenney
parent b52ce066c5
commit 966f58c2f6
1 changed files with 0 additions and 6 deletions
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6
include/linux/srcu.h
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@ -44,12 +44,6 @@ 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,