linux-kernel - Re: [PATCH 2/3] rcu: Remove stale comment in tree.c

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Date:	Wed, 16 Jul 2014 22:20:33 -0400
From:	Pranith Kumar <bobby.prani@...il.com>
To:	Josh Triplett <josh@...htriplett.org>
CC:	Lai Jiangshan <laijs@...fujitsu.com>, paulmck@...ux.vnet.ibm.com,
	Steven Rostedt <rostedt@...dmis.org>,
	Mathieu Desnoyers <mathieu.desnoyers@...icios.com>,
	"open list:READ-COPY UPDATE..." <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 2/3] rcu: Remove stale comment in tree.c

On 07/16/2014 10:14 PM, Josh Triplett wrote:
> On Wed, Jul 16, 2014 at 09:01:52PM -0400, Pranith Kumar wrote:
>> Sure, please find an updated patch with Josh Triplett's sign-off added:
> 
> It appears to have a reviewed-by from someone named "Joe Tripplett"
> instead. ;)
> 

I apologize for fat-fingering this.
Since I've sent one too many emails in this thread already, I suppose on more can not do much harm :)

This time with Reviewed-by Lai Jiangshan added and Reviewed-by Josh Triplett corrected.

From: Pranith Kumar <bobby.prani@...il.com>
Date: Mon, 14 Jul 2014 16:01:05 -0400
Subject: [PATCH 2/3] rcu: Remove stale comment in tree.c

This commit removes a stale comment in rcu/tree.c which was left out when some
code was moved around previously in the commit

2036d94a7b61 ("rcu:  Rework detection of use of RCU by offline CPUs")

For reference, the following updated comment exists a few lines below this which
means the same.

/* Remove the outgoing CPU from the masks in the rcu_node hierarchy. */

Signed-off-by: Pranith Kumar <bobby.prani@...il.com>
Reviewed-by: Josh Triplett <josh@...htriplett.org>
Reviewed-by: Lai Jiangshan <laijs@...fujitsu.com>
---
 kernel/rcu/tree.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
index a1abaa8..e67246e 100644
--- a/kernel/rcu/tree.c
+++ b/kernel/rcu/tree.c
@@ -2211,8 +2211,6 @@ static void rcu_cleanup_dead_cpu(int cpu, struct rcu_state *rsp)
 	/* Adjust any no-longer-needed kthreads. */
 	rcu_boost_kthread_setaffinity(rnp, -1);
 
-	/* Remove the dead CPU from the bitmasks in the rcu_node hierarchy. */
-
 	/* Exclude any attempts to start a new grace period. */
 	mutex_lock(&rsp->onoff_mutex);
 	raw_spin_lock_irqsave(&rsp->orphan_lock, flags);
-- 
1.9.1


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