Messages in this thread | | | Date | Thu, 30 May 2013 16:07:43 +0200 (CEST) | From | Thomas Gleixner <> | Subject | Re: [PATCH] RFC: Set irq thread to RT priority on creation |
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On Thu, 30 May 2013, Ivo Sieben wrote:
> When a threaded irq handler is installed the irq thread is initially created > on normal scheduling priority. Only after the the irq thread is woken up it > sets its priority to RT_FIFO MAX_USER_RT_PRIO/2. > > This means that interrupts that occur directly after the irq handler is > installed will be handled on a normal scheduling priority instead of the > realtime priority that you would expect. Fixed this by setting the RT > priority on creation of the irq_thread. > > Signed-off-by: Ivo Sieben <meltedpianoman@gmail.com> > --- > > RFC: > Whas there a specific reason for the irq_thread to be created on normal > scheduling and only set to RT priority when woken up?
No.
> This patch solves an issue for me where a device driver is expected to handle an > interrupt immediatly after irq handlers are installed and interrupts enabled.
You miss to explain what kind of issue that is.
Thanks,
tglx
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