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RULE = always ((RT and SLEEP and USER_THREAD) imply (RT_FRIENDLY_SLEEP or ALLOWLIST))
RT_FRIENDLY_SLEEP = RT_VALID_SLEEP_REASON
and ((not SCHEDULE_IN) until RT_FRIENDLY_WAKE)
RT_VALID_SLEEP_REASON = FUTEX_WAIT
or RT_FRIENDLY_NANOSLEEP
or EPOLL_WAIT
RT_FRIENDLY_NANOSLEEP = CLOCK_NANOSLEEP
and NANOSLEEP_TIMER_ABSTIME
and not NANOSLEEP_CLOCK_REALTIME
RT_FRIENDLY_WAKE = WOKEN_BY_EQUAL_OR_HIGHER_PRIO
or WOKEN_BY_HARDIRQ
or WOKEN_BY_NMI
or ABORT_SLEEP
ALLOWLIST = BLOCK_ON_RT_MUTEX
or FUTEX_LOCK_PI
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