Re: [PATCH v2 RT 3.18] irq_work: Provide a soft-irq based queue

From: Sebastian Andrzej Siewior
Date: Thu May 14 2015 - 15:58:19 EST

* 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@xxxxxxxxxxx>

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