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rcu: Abstract common code for RCU grace-period-wait primitives

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Pull the code that waits for an RCU grace period into a single function,
which is then called by synchronize_rcu() and friends in the case of
TREE_RCU and TREE_PREEMPT_RCU, and from rcu_barrier() and friends in
the case of TINY_RCU and TINY_PREEMPT_RCU.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
This commit is contained in:
Paul E. McKenney
2011-05-26 22:14:36 -07:00
parent f039d1f188
commit 2c42818e96
8 changed files with 113 additions and 131 deletions
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2
include/linux/rcutree.h
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@ -67,6 +67,8 @@ static inline void synchronize_rcu_bh_expedited(void)
}
extern void rcu_barrier(void);
extern void rcu_barrier_bh(void);
extern void rcu_barrier_sched(void);
extern unsigned long rcutorture_testseq;
extern unsigned long rcutorture_vernum;