From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
To: Tejun Heo <tj@kernel.org>
Cc: linux-kernel@vger.kernel.org, linux-rt-devel@lists.linux.dev,
Lai Jiangshan <jiangshanlai@gmail.com>,
Ingo Molnar <mingo@redhat.com>,
Peter Zijlstra <peterz@infradead.org>,
Steven Rostedt <rostedt@goodmis.org>,
Thomas Gleixner <tglx@linutronix.de>
Subject: Re: [PATCH] softirq: Provide a handshake for canceling tasklets via polling on PREEMPT_RT
Date: Tue, 26 Aug 2025 17:49:42 +0200 [thread overview]
Message-ID: <20250826154942.BcGs2_U5@linutronix.de> (raw)
In-Reply-To: <aKix80fycymWz3Mh@slm.duckdns.org>
On 2025-08-22 08:07:47 [-1000], Tejun Heo wrote:
> Hello, Sebastian.
Hi Tejun,
> Agreed, once we get rid of them, we can drop the whole block for both RT and
> !RT - ie. revert the patch that added it. But, wouldn't it be more orderly
> to match the semantics in both cases even if the behavior isn't quite
> optimal? We can put some comment noting what to do once the culprits are
> updated to not need it.
Sure. I am only worried that if something is possible, people will use
it. I don't think things will change if we debate for another week ;)
The first patch here in this thread should provide the symmetrical API.
Oh. We could also hide this polling API behind a special API which is
hidden just for three special cases so everyone else would do the right
job.
> Thanks.
Sebastian
next prev parent reply other threads:[~2025-08-26 15:49 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-08-12 14:39 [PATCH] softirq: Provide a handshake for canceling tasklets via polling on PREEMPT_RT Sebastian Andrzej Siewior
2025-08-12 14:53 ` Sebastian Andrzej Siewior
2025-08-12 19:38 ` Tejun Heo
2025-08-13 6:33 ` Sebastian Andrzej Siewior
2025-08-13 18:05 ` Tejun Heo
2025-08-18 12:52 ` Sebastian Andrzej Siewior
2025-08-18 17:41 ` Tejun Heo
2025-08-19 15:01 ` Sebastian Andrzej Siewior
2025-08-20 10:36 ` Sebastian Andrzej Siewior
2025-08-20 10:55 ` Sebastian Andrzej Siewior
2025-08-20 19:44 ` Tejun Heo
2025-08-21 9:28 ` Sebastian Andrzej Siewior
2025-08-21 17:10 ` Tejun Heo
2025-08-22 9:48 ` Sebastian Andrzej Siewior
2025-08-22 18:07 ` Tejun Heo
2025-08-26 15:49 ` Sebastian Andrzej Siewior [this message]
2025-08-26 16:27 ` Tejun Heo
2025-08-28 16:04 ` Sebastian Andrzej Siewior
2025-08-29 19:34 ` Tejun Heo
2025-08-13 8:20 ` kernel test robot
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