linux-kernel - [PATCH tip/core/rcu 07/16] rcu: Fix obsolete priority-boosting comment

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Message-Id: <1437171616-13832-7-git-send-email-paulmck@linux.vnet.ibm.com>
Date:	Fri, 17 Jul 2015 15:20:07 -0700
From:	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
To:	linux-kernel@...r.kernel.org
Cc:	mingo@...nel.org, laijs@...fujitsu.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,
	dvhart@...ux.intel.com, fweisbec@...il.com, oleg@...hat.com,
	bobby.prani@...il.com,
	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
Subject: [PATCH tip/core/rcu 07/16] rcu: Fix obsolete priority-boosting comment

From: "Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>

Tasks are no longer migrated to the root rcu_node, so there is no
longer any need for a boost kthread for the root rcu_node, and there no
longer is such a kthread.  This commit therefore fixes the comment in
rcu_boost_kthread()'s header to reflect this new reality.

Signed-off-by: Paul E. McKenney <paulmck@...ux.vnet.ibm.com>
---
 kernel/rcu/tree_plugin.h | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/kernel/rcu/tree_plugin.h b/kernel/rcu/tree_plugin.h
index 013485fb2b06..a983bc68a146 100644
--- a/kernel/rcu/tree_plugin.h
+++ b/kernel/rcu/tree_plugin.h
@@ -1061,8 +1061,7 @@ static int rcu_boost(struct rcu_node *rnp)
 }
 
 /*
- * Priority-boosting kthread.  One per leaf rcu_node and one for the
- * root rcu_node.
+ * Priority-boosting kthread, one per leaf rcu_node.
  */
 static int rcu_boost_kthread(void *arg)
 {
-- 
1.8.1.5

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