From: patchwork-bot+netdevbpf@kernel.org
To: Boqun Feng <boqun@kernel.org>
Cc: joelagnelf@nvidia.com, paulmck@kernel.org, memxor@gmail.com,
bigeasy@linutronix.de, frederic@kernel.org,
neeraj.iitr10@gmail.com, urezki@gmail.com, boqun.feng@gmail.com,
rcu@vger.kernel.org, tj@kernel.org, bpf@vger.kernel.org,
ast@kernel.org, daniel@iogearbox.net, john.fastabend@gmail.com,
arighi@nvidia.com, qiang.zhang@linux.dev
Subject: Re: [PATCH v2] rcu: Use an intermediate irq_work to start process_srcu()
Date: Thu, 26 Mar 2026 19:12:50 +0000 [thread overview]
Message-ID: <177455237053.3138649.16201619133847668451.git-patchwork-notify@kernel.org> (raw)
In-Reply-To: <20260320222916.19987-1-boqun@kernel.org>
Hello:
This patch was applied to netdev/net.git (main)
by Boqun Feng <boqun@kernel.org>:
On Fri, 20 Mar 2026 15:29:16 -0700 you wrote:
> Since commit c27cea4416a3 ("rcu: Re-implement RCU Tasks Trace in terms
> of SRCU-fast") we switched to SRCU in BPF. However as BPF instrument can
> happen basically everywhere (including where a scheduler lock is held),
> call_srcu() now needs to avoid acquiring scheduler lock because
> otherwise it could cause deadlock [1]. Fix this by following what the
> previous RCU Tasks Trace did: using an irq_work to delay the queuing of
> the work to start process_srcu().
>
> [...]
Here is the summary with links:
- [v2] rcu: Use an intermediate irq_work to start process_srcu()
https://git.kernel.org/netdev/net/c/7c405fb3279b
You are awesome, thank you!
--
Deet-doot-dot, I am a bot.
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next prev parent reply other threads:[~2026-03-26 19:13 UTC|newest]
Thread overview: 65+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <3c4c5a29-24ea-492d-aeee-e0d9605b4183@nvidia.com>
[not found] ` <absesPf-10awctq9@tardis.local>
[not found] ` <absfZGD3en9TUA1U@tardis.local>
[not found] ` <absj6rZbyLZY8PPz@tardis.local>
[not found] ` <da4313b1-9ff5-46e9-b3b7-206dbcb72602@nvidia.com>
[not found] ` <abs026TUV9oAg_Xy@tardis.local>
[not found] ` <abtMhd_LVp3uL_pA@tardis.local>
[not found] ` <20260319090315.Ec_eXAg4@linutronix.de>
[not found] ` <abwkD0mOdAbD9ENJ@tardis.local>
[not found] ` <20260319163350.c7WuYOM9@linutronix.de>
2026-03-19 16:48 ` Next-level bug in SRCU implementation of RCU Tasks Trace + PREEMPT_RT Boqun Feng
2026-03-19 16:59 ` Kumar Kartikeya Dwivedi
2026-03-19 17:27 ` Boqun Feng
2026-03-19 18:41 ` Kumar Kartikeya Dwivedi
2026-03-19 20:14 ` Boqun Feng
2026-03-19 20:21 ` Joel Fernandes
2026-03-19 20:39 ` Boqun Feng
2026-03-20 15:34 ` Paul E. McKenney
2026-03-20 15:59 ` Boqun Feng
2026-03-20 16:24 ` Paul E. McKenney
2026-03-20 16:57 ` Boqun Feng
2026-03-20 17:54 ` Joel Fernandes
2026-03-20 18:14 ` [PATCH] rcu: Use an intermediate irq_work to start process_srcu() Boqun Feng
2026-03-20 19:18 ` Joel Fernandes
2026-03-20 20:47 ` Andrea Righi
2026-03-20 20:54 ` Boqun Feng
2026-03-20 21:00 ` Andrea Righi
2026-03-20 21:02 ` Andrea Righi
2026-03-20 21:06 ` Boqun Feng
2026-03-20 22:29 ` [PATCH v2] " Boqun Feng
2026-03-23 21:09 ` Joel Fernandes
2026-03-23 22:18 ` Boqun Feng
2026-03-23 22:50 ` Joel Fernandes
2026-03-24 11:27 ` Frederic Weisbecker
2026-03-24 14:56 ` Joel Fernandes
2026-03-24 14:56 ` Alexei Starovoitov
2026-03-24 17:36 ` Boqun Feng
2026-03-24 18:40 ` Joel Fernandes
2026-03-24 19:23 ` Paul E. McKenney
2026-03-26 19:12 ` patchwork-bot+netdevbpf [this message]
2026-03-21 4:27 ` [PATCH] " Zqiang
2026-03-21 18:15 ` Boqun Feng
2026-03-21 10:10 ` Paul E. McKenney
2026-03-21 17:15 ` Boqun Feng
2026-03-21 17:41 ` Paul E. McKenney
2026-03-21 18:06 ` Boqun Feng
2026-03-21 19:31 ` Paul E. McKenney
2026-03-21 19:45 ` Boqun Feng
2026-03-21 20:07 ` Paul E. McKenney
2026-03-21 20:08 ` Boqun Feng
2026-03-22 10:09 ` Paul E. McKenney
2026-03-22 16:16 ` Boqun Feng
2026-03-22 17:09 ` Paul E. McKenney
2026-03-22 17:31 ` Boqun Feng
2026-03-22 17:44 ` Paul E. McKenney
2026-03-22 18:17 ` Boqun Feng
2026-03-22 19:47 ` Paul E. McKenney
2026-03-22 20:26 ` Boqun Feng
2026-03-23 7:50 ` Paul E. McKenney
2026-03-20 18:20 ` Next-level bug in SRCU implementation of RCU Tasks Trace + PREEMPT_RT Boqun Feng
2026-03-20 23:11 ` Paul E. McKenney
2026-03-21 3:29 ` Paul E. McKenney
2026-03-21 17:03 ` [RFC PATCH] rcu-tasks: Avoid using mod_timer() in call_rcu_tasks_generic() Boqun Feng
2026-03-23 15:17 ` Boqun Feng
2026-03-23 20:37 ` Joel Fernandes
2026-03-23 21:50 ` Kumar Kartikeya Dwivedi
2026-03-23 22:13 ` Boqun Feng
2026-03-20 16:15 ` Next-level bug in SRCU implementation of RCU Tasks Trace + PREEMPT_RT Boqun Feng
2026-03-20 16:24 ` Paul E. McKenney
2026-03-19 17:02 ` Sebastian Andrzej Siewior
2026-03-19 17:44 ` Boqun Feng
2026-03-19 18:42 ` Joel Fernandes
2026-03-19 20:20 ` Boqun Feng
2026-03-19 20:26 ` Joel Fernandes
2026-03-19 20:45 ` Joel Fernandes
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