From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
To: Julia Cartwright <julia@ni.com>
Cc: Ingo Molnar <mingo@kernel.org>,
Thomas Gleixner <tglx@linutronix.de>,
Peter Zijlstra <peterz@infradead.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"linux-rt-users@vger.kernel.org" <linux-rt-users@vger.kernel.org>,
Steffen Trumtrar <s.trumtrar@pengutronix.de>,
Tim Sander <tim@krieglstein.org>,
Guenter Roeck <linux@roeck-us.net>
Subject: Re: [PATCH 1/2] kthread: convert worker lock to raw spinlock
Date: Fri, 5 Oct 2018 18:46:27 +0200 [thread overview]
Message-ID: <20181005164627.m6w5s44s25dhu7ln@linutronix.de> (raw)
In-Reply-To: <da33d7d7aa32d08f9cbf5016fb04426f90645cb0.1538089180.git.julia@ni.com>
On 2018-09-28 21:03:51 [+0000], Julia Cartwright wrote:
> In order to enable the queuing of kthread work items from hardirq
> context even when PREEMPT_RT_FULL is enabled, convert the worker
> spin_lock to a raw_spin_lock.
>
> This is only acceptable to do because the work performed under the lock
> is well-bounded and minimal.
>
> Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
> Cc: Guenter Roeck <linux@roeck-us.net>
> Reported-and-tested-by: Steffen Trumtrar <s.trumtrar@pengutronix.de>
> Reported-by: Tim Sander <tim@krieglstein.org>
> Signed-off-by: Julia Cartwright <julia@ni.com>
Acked-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Sebastian
next prev parent reply other threads:[~2018-10-05 16:46 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <73in2vl5mj.fsf@pengutronix.de>
2018-09-28 21:03 ` [PATCH 0/2] Fix watchdogd wakeup deferral on RT Julia Cartwright
2018-09-28 21:03 ` [PATCH 1/2] kthread: convert worker lock to raw spinlock Julia Cartwright
2018-10-05 16:46 ` Sebastian Andrzej Siewior [this message]
2018-10-05 18:10 ` Andrea Parri
2018-10-09 10:56 ` Sebastian Andrzej Siewior
2018-09-28 21:03 ` [PATCH RT 2/2] watchdog, rt: prevent deferral of watchdogd wakeup Julia Cartwright
2018-09-28 22:38 ` kbuild test robot
2018-09-29 6:38 ` Thomas Gleixner
2018-09-29 22:13 ` Sebastian Andrzej Siewior
2018-09-30 1:41 ` [kbuild-all] " Li, Philip
2018-09-28 23:20 ` kbuild test robot
2018-09-30 14:00 ` Guenter Roeck
2018-10-05 16:52 ` Sebastian Andrzej Siewior
2019-02-12 16:25 [PATCH 1/2] kthread: convert worker lock to raw spinlock Sebastian Andrzej Siewior
2019-02-13 12:13 ` Petr Mladek
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