linux-kernel - [PATCH tip/core/rcu 12/12] rcu: Remove unused stop-machine #include

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Message-Id: <20191210040741.2943-12-paulmck@kernel.org>
Date:   Mon,  9 Dec 2019 20:07:41 -0800
From:   paulmck@...nel.org
To:     rcu@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org, kernel-team@...com, mingo@...nel.org,
        jiangshanlai@...il.com, dipankar@...ibm.com,
        akpm@...ux-foundation.org, mathieu.desnoyers@...icios.com,
        josh@...htriplett.org, tglx@...utronix.de, peterz@...radead.org,
        rostedt@...dmis.org, dhowells@...hat.com, edumazet@...gle.com,
        fweisbec@...il.com, oleg@...hat.com, joel@...lfernandes.org,
        "Paul E. McKenney" <paulmck@...nel.org>
Subject: [PATCH tip/core/rcu 12/12] rcu: Remove unused stop-machine #include

From: "Paul E. McKenney" <paulmck@...nel.org>

Long ago, RCU used the stop-machine mechanism to implement expedited
grace periods, but no longer does so.  This commit therefore removes
the no-longer-needed #includes of linux/stop_machine.h.

Link: https://lwn.net/Articles/805317/
Reported-by: Viresh Kumar <viresh.kumar@...aro.org>
Signed-off-by: Paul E. McKenney <paulmck@...nel.org>
---
 kernel/rcu/tree.c | 1 -
 kernel/rcu/tree.h | 1 -
 2 files changed, 2 deletions(-)

diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
index d950764..878f62f 100644
--- a/kernel/rcu/tree.c
+++ b/kernel/rcu/tree.c
@@ -43,7 +43,6 @@
 #include <uapi/linux/sched/types.h>
 #include <linux/prefetch.h>
 #include <linux/delay.h>
-#include <linux/stop_machine.h>
 #include <linux/random.h>
 #include <linux/trace_events.h>
 #include <linux/suspend.h>
diff --git a/kernel/rcu/tree.h b/kernel/rcu/tree.h
index 9d5986a..ce90c68 100644
--- a/kernel/rcu/tree.h
+++ b/kernel/rcu/tree.h
@@ -16,7 +16,6 @@
 #include <linux/cpumask.h>
 #include <linux/seqlock.h>
 #include <linux/swait.h>
-#include <linux/stop_machine.h>
 #include <linux/rcu_node_tree.h>
 
 #include "rcu_segcblist.h"
-- 
2.9.5