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authorPaul E. McKenney <paul.mckenney@linaro.org>2012-05-28 23:26:01 -0700
committerPaul E. McKenney <paulmck@linux.vnet.ibm.com>2012-07-02 12:33:21 -0700
commit037b64ed0bf2405a1a01542164d3418564b44fff (patch)
tree59aa7e486e1673564f2a5687992130dffa71ca1b /kernel/rcutree_plugin.h
parent6c90cc7bf077f28144013e949ee0c122012d194a (diff)
rcu: Place pointer to call_rcu() in rcu_data structure
This is a preparatory commit for increasing rcu_barrier()'s concurrency. It adds a pointer in the rcu_data structure to the corresponding call_rcu() function. This allows a pointer to the rcu_data structure to imply the function pointer, which allows _rcu_barrier() state to be placed in the rcu_state structure. Signed-off-by: Paul E. McKenney <paul.mckenney@linaro.org> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Diffstat (limited to 'kernel/rcutree_plugin.h')
-rw-r--r--kernel/rcutree_plugin.h5
1 files changed, 3 insertions, 2 deletions
diff --git a/kernel/rcutree_plugin.h b/kernel/rcutree_plugin.h
index ef2b5231afa..9cb3a68819f 100644
--- a/kernel/rcutree_plugin.h
+++ b/kernel/rcutree_plugin.h
@@ -78,7 +78,8 @@ static void __init rcu_bootup_announce_oddness(void)
#ifdef CONFIG_TREE_PREEMPT_RCU
-struct rcu_state rcu_preempt_state = RCU_STATE_INITIALIZER(rcu_preempt);
+struct rcu_state rcu_preempt_state =
+ RCU_STATE_INITIALIZER(rcu_preempt, call_rcu);
DEFINE_PER_CPU(struct rcu_data, rcu_preempt_data);
static struct rcu_state *rcu_state = &rcu_preempt_state;
@@ -944,7 +945,7 @@ static int rcu_preempt_cpu_has_callbacks(int cpu)
*/
void rcu_barrier(void)
{
- _rcu_barrier(&rcu_preempt_state, call_rcu);
+ _rcu_barrier(&rcu_preempt_state);
}
EXPORT_SYMBOL_GPL(rcu_barrier);