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

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Message-ID: <157994895908.396.10457171877689560364.tip-bot2@tip-bot2>
Date:   Sat, 25 Jan 2020 10:42:39 -0000
From:   "tip-bot2 for Paul E. McKenney" <tip-bot2@...utronix.de>
To:     linux-tip-commits@...r.kernel.org
Cc:     Viresh Kumar <viresh.kumar@...aro.org>,
        "Paul E. McKenney" <paulmck@...nel.org>, x86 <x86@...nel.org>,
        LKML <linux-kernel@...r.kernel.org>
Subject: [tip: core/rcu] rcu: Remove unused stop-machine #include

The following commit has been merged into the core/rcu branch of tip:

Commit-ID:     f6105fc2a9c0ea5be6b9e5c19b2551af0b8b4eac
Gitweb:        https://git.kernel.org/tip/f6105fc2a9c0ea5be6b9e5c19b2551af0b8b4eac
Author:        Paul E. McKenney <paulmck@...nel.org>
AuthorDate:    Wed, 27 Nov 2019 11:36:07 -08:00
Committer:     Paul E. McKenney <paulmck@...nel.org>
CommitterDate: Fri, 24 Jan 2020 10:33:52 -08:00

rcu: Remove unused stop-machine #include

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"