linux-kernel - [PATCH] cpu/hotplug: get rid of CPU

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Message-ID: <20160817122103.5exomri3lxlcuydr@linutronix.de>
Date:	Wed, 17 Aug 2016 14:21:04 +0200
From:	Sebastian Andrzej Siewior <bigeasy@...utronix.de>
To:	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
Cc:	linux-kernel@...r.kernel.org
Subject: [PATCH] cpu/hotplug: get rid of CPU_STARTING reference

CPU_STARTING is scheduled for removal. There is no use of it in drivers
and just compatibility use core code. This patch removes it from an RCU
related comment.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@...utronix.de>
---

Paul, this "CPU_STARTING" refrences got in via "rcu: Exact CPU-online
tracking for RCU".

 kernel/cpu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/cpu.c b/kernel/cpu.c
index 35b53a1f56a7..3788ad9d4073 100644
--- a/kernel/cpu.c
+++ b/kernel/cpu.c
@@ -897,7 +897,7 @@ void notify_cpu_starting(unsigned int cpu)
 	struct cpuhp_cpu_state *st = per_cpu_ptr(&cpuhp_state, cpu);
 	enum cpuhp_state target = min((int)st->target, CPUHP_AP_ONLINE);

-	rcu_cpu_starting(cpu);  /* All CPU_STARTING notifiers can use RCU. */
+	rcu_cpu_starting(cpu);	/* Enables RCU usage on this CPU. */
 	while (st->state < target) {
 		struct cpuhp_step *step;

-- 
2.9.3