diff options
Diffstat (limited to 'kernel/rcutree_plugin.h')
| -rw-r--r-- | kernel/rcutree_plugin.h | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/kernel/rcutree_plugin.h b/kernel/rcutree_plugin.h index 57200fe96d0a..c0cb783aa16a 100644 --- a/kernel/rcutree_plugin.h +++ b/kernel/rcutree_plugin.h @@ -410,6 +410,15 @@ static int rcu_preempt_needs_cpu(int cpu) return !!per_cpu(rcu_preempt_data, cpu).nxtlist; } +/** + * rcu_barrier - Wait until all in-flight call_rcu() callbacks complete. + */ +void rcu_barrier(void) +{ + _rcu_barrier(&rcu_preempt_state, call_rcu); +} +EXPORT_SYMBOL_GPL(rcu_barrier); + /* * Initialize preemptable RCU's per-CPU data. */ @@ -419,6 +428,14 @@ static void __cpuinit rcu_preempt_init_percpu_data(int cpu) } /* + * Move preemptable RCU's callbacks to ->orphan_cbs_list. + */ +static void rcu_preempt_send_cbs_to_orphanage(void) +{ + rcu_send_cbs_to_orphanage(&rcu_preempt_state); +} + +/* * Initialize preemptable RCU's state structures. */ static void __init __rcu_init_preempt(void) @@ -564,6 +581,16 @@ static int rcu_preempt_needs_cpu(int cpu) } /* + * Because preemptable RCU does not exist, rcu_barrier() is just + * another name for rcu_barrier_sched(). + */ +void rcu_barrier(void) +{ + rcu_barrier_sched(); +} +EXPORT_SYMBOL_GPL(rcu_barrier); + +/* * Because preemptable RCU does not exist, there is no per-CPU * data to initialize. */ @@ -572,6 +599,13 @@ static void __cpuinit rcu_preempt_init_percpu_data(int cpu) } /* + * Because there is no preemptable RCU, there are no callbacks to move. + */ +static void rcu_preempt_send_cbs_to_orphanage(void) +{ +} + +/* * Because preemptable RCU does not exist, it need not be initialized. */ static void __init __rcu_init_preempt(void) |