Hi, Thomas
On Commit 2a1d3ab8986d1b2 ("genirq: Handle force threading of irqs
with primary and thread handler"), even if the caller of
request_threaded_irq() provides a primary handler, that primary handler will
be invoked in thread context. This may cause some latency issue for high
real time requirement.
I checked the discussion on https://lkml.org/lkml/2015/9/19/372 with
Okuno and seems we need this change only if the irq is shared, otherwise, we
can still use Okuno's mechanism, am I right? Do you think it's ok to force
the primary handler for shared IRQ, otherwise, clear the IRQF_ONESHOT?
If yes, I will cook a patch for it.
Thanks
--jyh
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