From: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
Date: Sat, 9 Feb 2013 00:11:29 +0000 (-0800)
Subject: rcu: Remove comment referring to __stop_machine()
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=0bdf5984ad647ba5d1c09ed66a75e5bf609456ba;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git

rcu: Remove comment referring to __stop_machine()

Although it used to be that CPU_DYING notifiers executed on the outgoing
CPU with interrupts disabled and with all other CPUs spinning, this is
no longer the case.  This commit therefore removes this obsolete comment.

Signed-off-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
---

diff --git a/kernel/rcutree.c b/kernel/rcutree.c
index b2fc234ba1b9..71df6f9f5ce6 100644
--- a/kernel/rcutree.c
+++ b/kernel/rcutree.c
@@ -2931,11 +2931,6 @@ static int __cpuinit rcu_cpu_notify(struct notifier_block *self,
 		break;
 	case CPU_DYING:
 	case CPU_DYING_FROZEN:
-		/*
-		 * The whole machine is "stopped" except this CPU, so we can
-		 * touch any data without introducing corruption. We send the
-		 * dying CPU's callbacks to an arbitrarily chosen online CPU.
-		 */
 		for_each_rcu_flavor(rsp)
 			rcu_cleanup_dying_cpu(rsp);
 		rcu_cleanup_after_idle(cpu);