From: Peter Zijlstra <peterz@infradead.org>
To: "Paul E. McKenney" <paulmck@kernel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>,
linux-kernel <linux-kernel@vger.kernel.org>,
rcu <rcu@vger.kernel.org>, Josh Triplett <josh@joshtriplett.org>,
rostedt <rostedt@goodmis.org>,
Lai Jiangshan <jiangshanlai@gmail.com>,
"Joel Fernandes, Google" <joel@joelfernandes.org>
Subject: Re: tasks-trace RCU: question about grace period forward progress
Date: Thu, 25 Feb 2021 23:23:18 +0100 [thread overview]
Message-ID: <20210225222318.GG4746@worktop.programming.kicks-ass.net> (raw)
In-Reply-To: <20210225183321.GT2743@paulmck-ThinkPad-P72>
On Thu, Feb 25, 2021 at 10:33:21AM -0800, Paul E. McKenney wrote:
> One question for Peter... Does each and every context switch imply a
> full barrier?
Yes, also see the smp_mb__after_spinlock() in __schedule() :-)
next prev parent reply other threads:[~2021-02-25 22:25 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-25 14:22 tasks-trace RCU: question about grace period forward progress Mathieu Desnoyers
2021-02-25 15:36 ` Paul E. McKenney
2021-02-25 15:47 ` Mathieu Desnoyers
2021-02-25 18:33 ` Paul E. McKenney
2021-02-25 20:20 ` Mathieu Desnoyers
2021-02-25 20:55 ` Paul E. McKenney
2021-02-25 22:23 ` Peter Zijlstra [this message]
2021-02-25 23:05 ` Paul E. McKenney
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