rcu: Clean up code based on review feedback from Josh Triplett, part 2

[mirror_ubuntu-zesty-kernel.git] / include / linux / rcutree.h

diff --git a/include/linux/rcutree.h b/include/linux/rcutree.h
index a8930771782535d26e4e0d14b9a2c37d00b21682..19a3b06943e02f6d5208feeeea391d459cee048a 100644 (file)
--- a/include/linux/rcutree.h
+++ b/include/linux/rcutree.h
@@ -24,7 +24,7 @@
  * and inputs from Rusty Russell, Andrea Arcangeli and Andi Kleen.
  *
  * For detailed explanation of Read-Copy Update mechanism see -
- *     Documentation/RCU
+ *     Documentation/RCU
  */
 
 #ifndef __LINUX_RCUTREE_H
@@ -53,6 +53,8 @@ static inline void __rcu_read_unlock(void)
        preempt_enable();
 }
 
+#define __synchronize_sched() synchronize_rcu()
+
 static inline void exit_rcu(void)
 {
 }
@@ -68,8 +70,6 @@ static inline void __rcu_read_unlock_bh(void)
        local_bh_enable();
 }
 
-#define __synchronize_sched() synchronize_rcu()
-
 extern void call_rcu_sched(struct rcu_head *head,
                           void (*func)(struct rcu_head *rcu));
 
@@ -85,16 +85,11 @@ static inline void synchronize_rcu_bh_expedited(void)
 
 extern void __rcu_init(void);
 extern void rcu_check_callbacks(int cpu, int user);
-extern void rcu_restart_cpu(int cpu);
 
 extern long rcu_batches_completed(void);
 extern long rcu_batches_completed_bh(void);
 extern long rcu_batches_completed_sched(void);
 
-static inline void rcu_init_sched(void)
-{
-}
-
 #ifdef CONFIG_NO_HZ
 void rcu_enter_nohz(void);
 void rcu_exit_nohz(void);
@@ -107,7 +102,7 @@ static inline void rcu_exit_nohz(void)
 }
 #endif /* CONFIG_NO_HZ */
 
-/* A context switch is a grace period for rcutree. */
+/* A context switch is a grace period for RCU-sched and RCU-bh. */
 static inline int rcu_blocking_is_gp(void)
 {
        return num_online_cpus() == 1;