diff options
Diffstat (limited to 'include/linux/rcutree.h')
| -rw-r--r-- | include/linux/rcutree.h | 24 |
1 files changed, 15 insertions, 9 deletions
diff --git a/include/linux/rcutree.h b/include/linux/rcutree.h index 46e9ab3ee6e..8044b1b9433 100644 --- a/include/linux/rcutree.h +++ b/include/linux/rcutree.h @@ -34,17 +34,23 @@ struct notifier_block; extern void rcu_sched_qs(int cpu); extern void rcu_bh_qs(int cpu); -extern int rcu_cpu_notify(struct notifier_block *self, - unsigned long action, void *hcpu); extern int rcu_needs_cpu(int cpu); +extern void rcu_scheduler_starting(void); extern int rcu_expedited_torture_stats(char *page); #ifdef CONFIG_TREE_PREEMPT_RCU extern void __rcu_read_lock(void); extern void __rcu_read_unlock(void); +extern void synchronize_rcu(void); extern void exit_rcu(void); +/* + * Defined as macro as it is a very low level header + * included from areas that don't even know about current + */ +#define rcu_preempt_depth() (current->rcu_read_lock_nesting) + #else /* #ifdef CONFIG_TREE_PREEMPT_RCU */ static inline void __rcu_read_lock(void) @@ -57,12 +63,17 @@ static inline void __rcu_read_unlock(void) preempt_enable(); } -#define __synchronize_sched() synchronize_rcu() +#define synchronize_rcu synchronize_sched static inline void exit_rcu(void) { } +static inline int rcu_preempt_depth(void) +{ + return 0; +} + #endif /* #else #ifdef CONFIG_TREE_PREEMPT_RCU */ static inline void __rcu_read_lock_bh(void) @@ -76,18 +87,13 @@ static inline void __rcu_read_unlock_bh(void) extern void call_rcu_sched(struct rcu_head *head, void (*func)(struct rcu_head *rcu)); - -static inline void synchronize_rcu_expedited(void) -{ - synchronize_sched_expedited(); -} +extern void synchronize_rcu_expedited(void); static inline void synchronize_rcu_bh_expedited(void) { synchronize_sched_expedited(); } -extern void __rcu_init(void); extern void rcu_check_callbacks(int cpu, int user); extern long rcu_batches_completed(void); |