These changes are the raw update to linux-4.4.6-rt14. Kernel sources

[kvmfornfv.git] / kernel / kernel / rcu / tiny.c

diff --git a/kernel/kernel/rcu/tiny.c b/kernel/kernel/rcu/tiny.c
index ec30868..944b1b4 100644 (file)
--- a/kernel/kernel/rcu/tiny.c
+++ b/kernel/kernel/rcu/tiny.c
@@ -35,7 +35,7 @@
 #include <linux/time.h>
 #include <linux/cpu.h>
 #include <linux/prefetch.h>
-#include <linux/ftrace_event.h>
+#include <linux/trace_events.h>
 
 #include "rcu.h"
 
@@ -44,44 +44,11 @@ struct rcu_ctrlblk;
 static void __rcu_process_callbacks(struct rcu_ctrlblk *rcp);
 static void rcu_process_callbacks(struct softirq_action *unused);
 static void __call_rcu(struct rcu_head *head,
-                      void (*func)(struct rcu_head *rcu),
+                      rcu_callback_t func,
                       struct rcu_ctrlblk *rcp);
 
 #include "tiny_plugin.h"
 
-/*
- * Enter idle, which is an extended quiescent state if we have fully
- * entered that mode.
- */
-void rcu_idle_enter(void)
-{
-}
-EXPORT_SYMBOL_GPL(rcu_idle_enter);
-
-/*
- * Exit an interrupt handler towards idle.
- */
-void rcu_irq_exit(void)
-{
-}
-EXPORT_SYMBOL_GPL(rcu_irq_exit);
-
-/*
- * Exit idle, so that we are no longer in an extended quiescent state.
- */
-void rcu_idle_exit(void)
-{
-}
-EXPORT_SYMBOL_GPL(rcu_idle_exit);
-
-/*
- * Enter an interrupt handler, moving away from idle.
- */
-void rcu_irq_enter(void)
-{
-}
-EXPORT_SYMBOL_GPL(rcu_irq_enter);
-
 #if defined(CONFIG_DEBUG_LOCK_ALLOC) || defined(CONFIG_RCU_TRACE)
 
 /*
@@ -224,10 +191,10 @@ static void rcu_process_callbacks(struct softirq_action *unused)
  */
 void synchronize_sched(void)
 {
-       rcu_lockdep_assert(!lock_is_held(&rcu_bh_lock_map) &&
-                          !lock_is_held(&rcu_lock_map) &&
-                          !lock_is_held(&rcu_sched_lock_map),
-                          "Illegal synchronize_sched() in RCU read-side critical section");
+       RCU_LOCKDEP_WARN(lock_is_held(&rcu_bh_lock_map) ||
+                        lock_is_held(&rcu_lock_map) ||
+                        lock_is_held(&rcu_sched_lock_map),
+                        "Illegal synchronize_sched() in RCU read-side critical section");
        cond_resched();
 }
 EXPORT_SYMBOL_GPL(synchronize_sched);
@@ -236,7 +203,7 @@ EXPORT_SYMBOL_GPL(synchronize_sched);
  * Helper function for call_rcu() and call_rcu_bh().
  */
 static void __call_rcu(struct rcu_head *head,
-                      void (*func)(struct rcu_head *rcu),
+                      rcu_callback_t func,
                       struct rcu_ctrlblk *rcp)
 {
        unsigned long flags;
@@ -262,7 +229,7 @@ static void __call_rcu(struct rcu_head *head,
  * period.  But since we have but one CPU, that would be after any
  * quiescent state.
  */
-void call_rcu_sched(struct rcu_head *head, void (*func)(struct rcu_head *rcu))
+void call_rcu_sched(struct rcu_head *head, rcu_callback_t func)
 {
        __call_rcu(head, func, &rcu_sched_ctrlblk);
 }
@@ -272,7 +239,7 @@ EXPORT_SYMBOL_GPL(call_rcu_sched);
  * Post an RCU bottom-half callback to be invoked after any subsequent
  * quiescent state.
  */
-void call_rcu_bh(struct rcu_head *head, void (*func)(struct rcu_head *rcu))
+void call_rcu_bh(struct rcu_head *head, rcu_callback_t func)
 {
        __call_rcu(head, func, &rcu_bh_ctrlblk);
 }