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-rw-r--r--kernel/rcu/tree.c19
1 files changed, 4 insertions, 15 deletions
diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
index 5ebc830297c1..61a97164abcc 100644
--- a/kernel/rcu/tree.c
+++ b/kernel/rcu/tree.c
@@ -1139,22 +1139,11 @@ void rcu_nmi_exit(void)
}
/**
- * __rcu_is_watching - are RCU read-side critical sections safe?
- *
- * Return true if RCU is watching the running CPU, which means that
- * this CPU can safely enter RCU read-side critical sections. Unlike
- * rcu_is_watching(), the caller of __rcu_is_watching() must have at
- * least disabled preemption.
- */
-bool notrace __rcu_is_watching(void)
-{
- return !rcu_dynticks_curr_cpu_in_eqs();
-}
-
-/**
* rcu_is_watching - see if RCU thinks that the current CPU is idle
*
- * If the current CPU is in its idle loop and is neither in an interrupt
+ * Return true if RCU is watching the running CPU, which means that this
+ * CPU can safely enter RCU read-side critical sections. In other words,
+ * if the current CPU is in its idle loop and is neither in an interrupt
* or NMI handler, return true.
*/
bool notrace rcu_is_watching(void)
@@ -1162,7 +1151,7 @@ bool notrace rcu_is_watching(void)
bool ret;
preempt_disable_notrace();
- ret = __rcu_is_watching();
+ ret = !rcu_dynticks_curr_cpu_in_eqs();
preempt_enable_notrace();
return ret;
}