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author | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2011-05-26 22:14:36 -0700 |
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committer | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2011-09-28 21:36:42 -0700 |
commit | 2c42818e962e2858334bf45bfc56662b3752df34 (patch) | |
tree | 192364123c9aeeab282c53168e51eddece9d8be4 /kernel/rcutiny.c | |
parent | f039d1f1884b2fe9c13d28f59d8330f0b0518fc4 (diff) | |
download | linux-2c42818e962e2858334bf45bfc56662b3752df34.tar.gz linux-2c42818e962e2858334bf45bfc56662b3752df34.tar.bz2 linux-2c42818e962e2858334bf45bfc56662b3752df34.zip |
rcu: Abstract common code for RCU grace-period-wait primitives
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>
Diffstat (limited to 'kernel/rcutiny.c')
-rw-r--r-- | kernel/rcutiny.c | 28 |
1 files changed, 0 insertions, 28 deletions
diff --git a/kernel/rcutiny.c b/kernel/rcutiny.c index 7bbac7d0f5ab..f544e343256a 100644 --- a/kernel/rcutiny.c +++ b/kernel/rcutiny.c @@ -281,34 +281,6 @@ void call_rcu_bh(struct rcu_head *head, void (*func)(struct rcu_head *rcu)) } EXPORT_SYMBOL_GPL(call_rcu_bh); -void rcu_barrier_bh(void) -{ - struct rcu_synchronize rcu; - - init_rcu_head_on_stack(&rcu.head); - init_completion(&rcu.completion); - /* Will wake me after RCU finished. */ - call_rcu_bh(&rcu.head, wakeme_after_rcu); - /* Wait for it. */ - wait_for_completion(&rcu.completion); - destroy_rcu_head_on_stack(&rcu.head); -} -EXPORT_SYMBOL_GPL(rcu_barrier_bh); - -void rcu_barrier_sched(void) -{ - struct rcu_synchronize rcu; - - init_rcu_head_on_stack(&rcu.head); - init_completion(&rcu.completion); - /* Will wake me after RCU finished. */ - call_rcu_sched(&rcu.head, wakeme_after_rcu); - /* Wait for it. */ - wait_for_completion(&rcu.completion); - destroy_rcu_head_on_stack(&rcu.head); -} -EXPORT_SYMBOL_GPL(rcu_barrier_sched); - /* * Spawn the kthread that invokes RCU callbacks. */ |