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| author |   Paul E. McKenney <paul.mckenney@linaro.org> | 2012-05-28 23:26:01 -0700 |
|---|---|---|
| committer |   Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2012-07-02 12:33:21 -0700 |
| commit | 037b64ed0bf2405a1a01542164d3418564b44fff (patch) | |
| tree | 59aa7e486e1673564f2a5687992130dffa71ca1b /kernel/rcutree_plugin.h | |
| parent | rcu: Prevent excessive line length in RCU_STATE_INITIALIZER() (diff) | |
| download | linux-dev-037b64ed0bf2405a1a01542164d3418564b44fff.tar.xz linux-dev-037b64ed0bf2405a1a01542164d3418564b44fff.zip | |
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.h | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/kernel/rcutree_plugin.h b/kernel/rcutree_plugin.h index ef2b5231afa4..9cb3a68819fa 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); |