1WAIT_EVENT_INTERRUPT(9) Driver Basics WAIT_EVENT_INTERRUPT(9)
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6 wait_event_interruptible_lock_irq - sleep until a condition gets true.
7 The condition is checked under the lock. This is expected to be called
8 with the lock taken.
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11 wait_event_interruptible_lock_irq(wq, condition, lock);
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14 wq
15 the waitqueue to wait on
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17 condition
18 a C expression for the event to wait for
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20 lock
21 a locked spinlock_t, which will be released before schedule and
22 reacquired afterwards.
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25 The process is put to sleep (TASK_INTERRUPTIBLE) until the condition
26 evaluates to true or signal is received. The condition is checked each
27 time the waitqueue wq is woken up.
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29 wake_up has to be called after changing any variable that could change
30 the result of the wait condition.
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32 This is supposed to be called while holding the lock. The lock is
33 dropped before going to sleep and is reacquired afterwards.
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35 The macro will return -ERESTARTSYS if it was interrupted by a signal
36 and 0 if condition evaluated to true.
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39Kernel Hackers Manual 3.10 June 2019 WAIT_EVENT_INTERRUPT(9)