From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
To: linux-kernel@vger.kernel.org
Cc: mingo@kernel.org, laijs@cn.fujitsu.com, dipankar@in.ibm.com,
akpm@linux-foundation.org, mathieu.desnoyers@efficios.com,
josh@joshtriplett.org, tglx@linutronix.de, peterz@infradead.org,
rostedt@goodmis.org, dhowells@redhat.com, edumazet@google.com,
dvhart@linux.intel.com, fweisbec@gmail.com, oleg@redhat.com,
bobby.prani@gmail.com,
"Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Subject: [PATCH tip/core/rcu 07/16] rcu: Fix obsolete priority-boosting comment
Date: Fri, 17 Jul 2015 15:20:07 -0700 [thread overview]
Message-ID: <1437171616-13832-7-git-send-email-paulmck@linux.vnet.ibm.com> (raw)
In-Reply-To: <1437171616-13832-1-git-send-email-paulmck@linux.vnet.ibm.com>
From: "Paul E. McKenney" <paulmck@linux.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@linux.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
next prev parent reply other threads:[~2015-07-17 22:20 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-07-17 22:19 [PATCH tip/core/rcu 0/16] Miscellaneous fixes for 4.3 Paul E. McKenney
2015-07-17 22:20 ` [PATCH tip/core/rcu 01/16] rcu: Drop RCU_USER_QS in favor of NO_HZ_FULL Paul E. McKenney
2015-07-17 22:20 ` [PATCH tip/core/rcu 02/16] rcu: Deinline rcu_read_lock_sched_held() if DEBUG_LOCK_ALLOC Paul E. McKenney
2015-07-17 22:20 ` [PATCH tip/core/rcu 03/16] rcu: Change return type to bool Paul E. McKenney
2015-07-17 22:20 ` [PATCH tip/core/rcu 04/16] rcu: Add RCU-sched flavors of get-state and cond-sync Paul E. McKenney
2015-07-17 22:20 ` [PATCH tip/core/rcu 05/16] rcu: Hide RCU_NOCB_CPU behind RCU_EXPERT Paul E. McKenney
2015-07-17 22:20 ` [PATCH tip/core/rcu 06/16] rcu: Use WRITE_ONCE in RCU_INIT_POINTER Paul E. McKenney
2015-07-17 22:20 ` Paul E. McKenney [this message]
2015-07-17 22:20 ` [PATCH tip/core/rcu 08/16] rcu: Create a synchronize_rcu_mult() Paul E. McKenney
2015-07-17 22:20 ` [PATCH tip/core/rcu 09/16] cpu: Wait for RCU grace periods concurrently Paul E. McKenney
2015-07-17 22:20 ` [PATCH tip/core/rcu 10/16] rcu: Make rcu_is_watching() really notrace Paul E. McKenney
2015-07-17 22:20 ` [PATCH tip/core/rcu 11/16] rcu: Rename rcu_lockdep_assert() to RCU_LOCKDEP_WARN() Paul E. McKenney
2015-07-17 22:20 ` [PATCH tip/core/rcu 12/16] rcu: Fix backwards RCU_LOCKDEP_WARN() in synchronize_rcu_tasks() Paul E. McKenney
2015-07-17 22:20 ` [PATCH tip/core/rcu 13/16] rcu: Clarify CONFIG_RCU_EQS_DEBUG help text Paul E. McKenney
2015-07-17 22:20 ` [PATCH tip/core/rcu 14/16] rcu: update MAINTAINERS entry Paul E. McKenney
2015-07-17 22:20 ` [PATCH tip/core/rcu 15/16] scripts: Make checkpatch.pl warn on expedited RCU grace periods Paul E. McKenney
2015-07-17 22:37 ` Joe Perches
2015-07-21 0:41 ` Paul E. McKenney
2015-07-21 0:48 ` Joe Perches
2015-07-21 1:02 ` Paul E. McKenney
2015-07-21 0:55 ` Steven Rostedt
2015-07-21 1:06 ` Joe Perches
2015-07-21 1:15 ` Steven Rostedt
2015-07-21 17:18 ` Joe Perches
2015-07-21 20:11 ` Paul E. McKenney
2015-07-21 1:29 ` Paul E. McKenney
2015-07-21 1:58 ` Joe Perches
2015-07-21 3:24 ` Paul E. McKenney
2015-07-17 22:20 ` [PATCH tip/core/rcu 16/16] rcu: Don't disable CPU hotplug during OOM notifiers Paul E. McKenney
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