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From: Neeraj Upadhyay <neeraju@codeaurora.org>
To: paulmck@kernel.org, josh@joshtriplett.org, rostedt@goodmis.org,
	mathieu.desnoyers@efficios.com, jiangshanlai@gmail.com,
	joel@joelfernandes.org
Cc: rcu@vger.kernel.org, linux-kernel@vger.kernel.org,
	Neeraj Upadhyay <neeraju@codeaurora.org>
Subject: [PATCH] rcu: Clarify nocb kthreads naming in RCU_NOCB_CPU config
Date: Thu, 24 Sep 2020 12:04:10 +0530	[thread overview]
Message-ID: <1600929250-20344-1-git-send-email-neeraju@codeaurora.org> (raw)

Clarify the "x" in rcuox/N naming in RCU_NOCB_CPU config
description.

Signed-off-by: Neeraj Upadhyay <neeraju@codeaurora.org>
---
 kernel/rcu/Kconfig | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/kernel/rcu/Kconfig b/kernel/rcu/Kconfig
index b71e21f..5b22747 100644
--- a/kernel/rcu/Kconfig
+++ b/kernel/rcu/Kconfig
@@ -227,11 +227,12 @@ config RCU_NOCB_CPU
 	  specified at boot time by the rcu_nocbs parameter.  For each
 	  such CPU, a kthread ("rcuox/N") will be created to invoke
 	  callbacks, where the "N" is the CPU being offloaded, and where
-	  the "p" for RCU-preempt (PREEMPTION kernels) and "s" for RCU-sched
-	  (!PREEMPTION kernels).  Nothing prevents this kthread from running
-	  on the specified CPUs, but (1) the kthreads may be preempted
-	  between each callback, and (2) affinity or cgroups can be used
-	  to force the kthreads to run on whatever set of CPUs is desired.
+	  the "x" is "p" for RCU-preempt (PREEMPTION kernels) and "s" for
+	  RCU-sched (!PREEMPTION kernels).  Nothing prevents this kthread
+	  from running on the specified CPUs, but (1) the kthreads may be
+	  preempted between each callback, and (2) affinity or cgroups can
+	  be used to force the kthreads to run on whatever set of CPUs is
+	  desired.
 
 	  Say Y here if you want to help to debug reduced OS jitter.
 	  Say N here if you are unsure.
-- 
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project


             reply	other threads:[~2020-09-24  6:34 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-09-24  6:34 Neeraj Upadhyay [this message]
2020-09-24 22:59 ` [PATCH] rcu: Clarify nocb kthreads naming in RCU_NOCB_CPU config Paul E. McKenney
2020-09-25  5:47   ` Neeraj Upadhyay
2020-09-28  0:13 ` Joel Fernandes
2020-09-28  3:41   ` Paul E. McKenney

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