From: Ingo Molnar <mingo@kernel.org>
Date: Sat, 15 Jan 2022 00:07:28 +0000 (-0800)
Subject: rcu: Uninline multi-use function: finish_rcuwait()
X-Git-Tag: v6.1-rc5~1817^2^2~2
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=58d4292bd037b01fbb940a5170817f7d40caa9d5;p=platform%2Fkernel%2Flinux-starfive.git

rcu: Uninline multi-use function: finish_rcuwait()

This is a rarely used function, so uninlining its 3 instructions
is probably a win or a wash - but the main motivation is to
make <linux/rcuwait.h> independent of task_struct details.

Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
---

diff --git a/include/linux/rcuwait.h b/include/linux/rcuwait.h
index 61c56cc..8052d34d 100644
--- a/include/linux/rcuwait.h
+++ b/include/linux/rcuwait.h
@@ -47,11 +47,7 @@ static inline void prepare_to_rcuwait(struct rcuwait *w)
 	rcu_assign_pointer(w->task, current);
 }
 
-static inline void finish_rcuwait(struct rcuwait *w)
-{
-        rcu_assign_pointer(w->task, NULL);
-	__set_current_state(TASK_RUNNING);
-}
+extern void finish_rcuwait(struct rcuwait *w);
 
 #define rcuwait_wait_event(w, condition, state)				\
 ({									\
diff --git a/kernel/rcu/update.c b/kernel/rcu/update.c
index 156892c..180ff9c 100644
--- a/kernel/rcu/update.c
+++ b/kernel/rcu/update.c
@@ -407,6 +407,13 @@ void __wait_rcu_gp(bool checktiny, int n, call_rcu_func_t *crcu_array,
 }
 EXPORT_SYMBOL_GPL(__wait_rcu_gp);
 
+void finish_rcuwait(struct rcuwait *w)
+{
+	rcu_assign_pointer(w->task, NULL);
+	__set_current_state(TASK_RUNNING);
+}
+EXPORT_SYMBOL_GPL(finish_rcuwait);
+
 #ifdef CONFIG_DEBUG_OBJECTS_RCU_HEAD
 void init_rcu_head(struct rcu_head *head)
 {