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authorFrederic Weisbecker <frederic@kernel.org>2023-09-08 23:36:01 +0300
committerFrederic Weisbecker <frederic@kernel.org>2023-10-04 23:29:45 +0300
commit448e9f34d91d1a4799fdb06a93c2c24b34b6fd9d (patch)
tree77e710649b98cc016479ce51a8c455d6bf7ed20e /include/linux
parent2cb1f6e9a743af58a23cf14563b5eada1e0d3fde (diff)
downloadlinux-448e9f34d91d1a4799fdb06a93c2c24b34b6fd9d.tar.xz
rcu: Standardize explicit CPU-hotplug calls
rcu_report_dead() and rcutree_migrate_callbacks() have their headers in rcupdate.h while those are pure rcutree calls, like the other CPU-hotplug functions. Also rcu_cpu_starting() and rcu_report_dead() have different naming conventions while they mirror each other's effects. Fix the headers and propose a naming that relates both functions and aligns with the prefix of other rcutree CPU-hotplug functions. Reviewed-by: Paul E. McKenney <paulmck@kernel.org> Signed-off-by: Frederic Weisbecker <frederic@kernel.org>
Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/interrupt.h2
-rw-r--r--include/linux/rcupdate.h2
-rw-r--r--include/linux/rcutiny.h2
-rw-r--r--include/linux/rcutree.h7
4 files changed, 8 insertions, 5 deletions
diff --git a/include/linux/interrupt.h b/include/linux/interrupt.h
index a92bce40b04b..d05e1e9a553c 100644
--- a/include/linux/interrupt.h
+++ b/include/linux/interrupt.h
@@ -566,7 +566,7 @@ enum
*
* _ RCU:
* 1) rcutree_migrate_callbacks() migrates the queue.
- * 2) rcu_report_dead() reports the final quiescent states.
+ * 2) rcutree_report_cpu_dead() reports the final quiescent states.
*
* _ IRQ_POLL: irq_poll_cpu_dead() migrates the queue
*/
diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h
index aa351ddcbe8d..f7206b2623c9 100644
--- a/include/linux/rcupdate.h
+++ b/include/linux/rcupdate.h
@@ -122,8 +122,6 @@ static inline void call_rcu_hurry(struct rcu_head *head, rcu_callback_t func)
void rcu_init(void);
extern int rcu_scheduler_active;
void rcu_sched_clock_irq(int user);
-void rcu_report_dead(void);
-void rcutree_migrate_callbacks(int cpu);
#ifdef CONFIG_TASKS_RCU_GENERIC
void rcu_init_tasks_generic(void);
diff --git a/include/linux/rcutiny.h b/include/linux/rcutiny.h
index 7b949292908a..d9ac7b136aea 100644
--- a/include/linux/rcutiny.h
+++ b/include/linux/rcutiny.h
@@ -171,6 +171,6 @@ static inline void rcu_all_qs(void) { barrier(); }
#define rcutree_offline_cpu NULL
#define rcutree_dead_cpu NULL
#define rcutree_dying_cpu NULL
-static inline void rcu_cpu_starting(unsigned int cpu) { }
+static inline void rcutree_report_cpu_starting(unsigned int cpu) { }
#endif /* __LINUX_RCUTINY_H */
diff --git a/include/linux/rcutree.h b/include/linux/rcutree.h
index 46875c4e9f56..254244202ea9 100644
--- a/include/linux/rcutree.h
+++ b/include/linux/rcutree.h
@@ -110,7 +110,7 @@ void rcu_all_qs(void);
/* RCUtree hotplug events */
int rcutree_prepare_cpu(unsigned int cpu);
int rcutree_online_cpu(unsigned int cpu);
-void rcu_cpu_starting(unsigned int cpu);
+void rcutree_report_cpu_starting(unsigned int cpu);
#ifdef CONFIG_HOTPLUG_CPU
int rcutree_dead_cpu(unsigned int cpu);
@@ -122,4 +122,9 @@ int rcutree_offline_cpu(unsigned int cpu);
#define rcutree_offline_cpu NULL
#endif
+void rcutree_migrate_callbacks(int cpu);
+
+/* Called from hotplug and also arm64 early secondary boot failure */
+void rcutree_report_cpu_dead(void);
+
#endif /* __LINUX_RCUTREE_H */