linux-kernel - Re: [PATCH] softirq: Provide a handshake for canceling tasklets via polling on PREEMPT

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Message-ID: <20250819150105.DYeV89fa@linutronix.de>
Date: Tue, 19 Aug 2025 17:01:05 +0200
From: Sebastian Andrzej Siewior <bigeasy@...utronix.de>
To: Tejun Heo <tj@...nel.org>
Cc: linux-kernel@...r.kernel.org, linux-rt-devel@...ts.linux.dev,
	Lai Jiangshan <jiangshanlai@...il.com>,
	Ingo Molnar <mingo@...hat.com>,
	Peter Zijlstra <peterz@...radead.org>,
	Steven Rostedt <rostedt@...dmis.org>,
	Thomas Gleixner <tglx@...utronix.de>
Subject: Re: [PATCH] softirq: Provide a handshake for canceling tasklets via
 polling on PREEMPT_RT

On 2025-08-18 07:41:06 [-1000], Tejun Heo wrote:
> Hello,
Hi Tejun,

> I see. Can I backtrack? If it doesn't require too invasive changes, let's
> just keep the two in sync. I'll get back to conversions so that we can
> actually achieve the goal eventually and it'll probably be more confusing if
> we revert that and try to redo it later.

Okay. Then let me repost the tasklet patch and make one for workqueue to
stay in sync.
I do hope that we end up with a requirement that any kind of teardown
does not happen from an atomic context ;)

> Thanks.
> 

Sebastian