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From: Tejun Heo <tj@kernel.org>
To: "Paul E. McKenney" <paulmck@kernel.org>
Cc: rcu@vger.kernel.org, linux-kernel@vger.kernel.org,
	kernel-team@meta.com, rostedt@goodmis.org,
	Uladzislau Rezki <urezki@gmail.com>,
	Joel Fernandes <joel@joelfernandes.org>,
	Lai Jiangshan <jiangshanlai@gmail.com>
Subject: Re: [PATCH v2 rcu 13/16] workqueue: Make queue_rcu_work() use call_rcu_flush()
Date: Mon, 21 Nov 2022 15:09:29 -1000	[thread overview]
Message-ID: <Y3whScgTs0FgrVtY@slm.duckdns.org> (raw)
In-Reply-To: <20221122010421.3799681-13-paulmck@kernel.org>

On Mon, Nov 21, 2022 at 05:04:18PM -0800, Paul E. McKenney wrote:
> And another call_rcu() instance that cannot be lazy is the one
> in queue_rcu_work(), given that callers to queue_rcu_work() are
> not necessarily OK with long delays.

So, this is fine but another thing we can do is propagating the distinction
through the workqueue interface so that the the choice can be made by
workqueue users. Would that make sense?

Thanks.

-- 
tejun

  reply	other threads:[~2022-11-22  1:10 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-11-22  1:04 [PATCH rcu 0/16 Lazy call_rcu() updates for v6.2 Paul E. McKenney
2022-11-22  1:04 ` [PATCH v2 rcu 01/16] rcu: Simplify rcu_init_nohz() cpumask handling Paul E. McKenney
2022-11-22  1:04 ` [PATCH v2 rcu 02/16] rcu: Fix late wakeup when flush of bypass cblist happens Paul E. McKenney
2022-11-22  1:04 ` [PATCH v2 rcu 03/16] rcu: Fix missing nocb gp wake on rcu_barrier() Paul E. McKenney
2022-11-22  1:04 ` [PATCH v2 rcu 04/16] rcu: Make call_rcu() lazy to save power Paul E. McKenney
2022-11-22  1:04 ` [PATCH v2 rcu 05/16] rcu: Refactor code a bit in rcu_nocb_do_flush_bypass() Paul E. McKenney
2022-11-23 15:59   ` Frederic Weisbecker
2022-11-23 17:54     ` Paul E. McKenney
2022-11-24  1:00       ` Joel Fernandes
2022-11-22  1:04 ` [PATCH v2 rcu 06/16] rcu: Shrinker for lazy rcu Paul E. McKenney
2022-11-22  1:04 ` [PATCH v2 rcu 07/16] rcuscale: Add laziness and kfree tests Paul E. McKenney
2022-11-22  1:04 ` [PATCH v2 rcu 08/16] percpu-refcount: Use call_rcu_flush() for atomic switch Paul E. McKenney
2022-11-22  1:04 ` [PATCH v2 rcu 09/16] rcu/sync: Use call_rcu_flush() instead of call_rcu Paul E. McKenney
2022-11-22  1:04 ` [PATCH v2 rcu 10/16] rcu/rcuscale: Use call_rcu_flush() for async reader test Paul E. McKenney
2022-11-22  1:04 ` [PATCH v2 rcu 11/16] rcu/rcutorture: Use call_rcu_flush() where needed Paul E. McKenney
2022-11-22  1:04 ` [PATCH v2 rcu 12/16] scsi/scsi_error: Use call_rcu_flush() instead of call_rcu() Paul E. McKenney
2022-11-26  0:11   ` Bart Van Assche
2022-11-28 21:39     ` Paul E. McKenney
2022-11-26  2:42   ` Martin K. Petersen
2022-11-22  1:04 ` [PATCH v2 rcu 13/16] workqueue: Make queue_rcu_work() use call_rcu_flush() Paul E. McKenney
2022-11-22  1:09   ` Tejun Heo [this message]
2022-11-22  1:23     ` Paul E. McKenney
2022-11-22  1:37       ` Tejun Heo
2022-11-22  1:52         ` Paul E. McKenney
2022-11-22 21:30           ` Tejun Heo
2022-11-22  1:04 ` [PATCH v2 rcu 14/16] rxrpc: Use call_rcu_flush() instead of call_rcu() Paul E. McKenney
2022-11-22  1:04 ` [PATCH v2 rcu 15/16] net: Use call_rcu_flush() for dst_release() Paul E. McKenney
2022-11-22  1:04 ` [PATCH v2 rcu 16/16] net: devinet: Reduce refcount before grace period Paul E. McKenney

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