Searched hist:"0178297 c1e6898e2197fe169ef3be723e019b971" (Results 1 – 1 of 1) sorted by relevance
| /openbmc/linux/drivers/iio/trigger/ |
| H A D | iio-trig-hrtimer.c | diff 0178297c1e6898e2197fe169ef3be723e019b971 Tue Nov 17 04:37:50 CST 2020 Lars-Peter Clausen <lars@metafoo.de> iio: hrtimer-trigger: Mark hrtimer to expire in hard interrupt context
On PREEMPT_RT enabled kernels unmarked hrtimers are moved into soft
interrupt expiry mode by default.
The IIO hrtimer-trigger needs to run in hard interrupt context since it
will end up calling generic_handle_irq() which has the requirement to run
in hard interrupt context.
Explicitly specify that the timer needs to run in hard interrupt context by
using the HRTIMER_MODE_REL_HARD flag.
Fixes: f5c2f0215e36 ("hrtimer: Move unmarked hrtimers to soft interrupt expiry on RT")
Reported-by: Christian Eggers <ceggers@arri.de>
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Link: https://lore.kernel.org/r/20201117103751.16131-1-lars@metafoo.de
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
|