From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
To: Jan Kiszka <jan.kiszka@siemens.com>
Cc: RT <linux-rt-users@vger.kernel.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Steven Rostedt <rostedt@goodmis.org>,
Mike Galbraith <umgwanakikbuti@gmail.com>
Subject: Re: [PATCH v2 RT 3.18] irq_work: Provide a soft-irq based queue
Date: Thu, 14 May 2015 21:58:11 +0200 [thread overview]
Message-ID: <20150514195811.GJ13442@linutronix.de> (raw)
In-Reply-To: <5538A0DF.50401@siemens.com>
* Jan Kiszka | 2015-04-23 09:35:59 [+0200]:
>Instead of turning all irq_work requests into lazy ones on -rt, just
>move their execution from hard into soft-irq context.
>
>This resolves deadlocks of ftrace which will queue work from arbitrary
>contexts, including those that have locks held that are needed for
>raising a soft-irq.
>
>Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Applied
Sebastian
next prev parent reply other threads:[~2015-05-14 19:58 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-04-23 7:35 [PATCH v2 RT 3.18] irq_work: Provide a soft-irq based queue Jan Kiszka
2015-05-14 19:58 ` Sebastian Andrzej Siewior [this message]
2015-05-15 7:43 ` Jan Kiszka
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