table of contents
WAIT_EVENT_LOCK_IRQ(9) | Driver Basics | WAIT_EVENT_LOCK_IRQ(9) |
NAME¶
wait_event_lock_irq - sleep until a condition gets true. The condition is checked under the lock. This is expected to be called with the lock taken.
SYNOPSIS¶
wait_event_lock_irq(wq, condition, lock);
ARGUMENTS¶
wq
condition
lock
DESCRIPTION¶
The process is put to sleep (TASK_UNINTERRUPTIBLE) until the condition evaluates to true. The condition is checked each time the waitqueue wq is woken up.
wake_up has to be called after changing any variable that could change the result of the wait condition.
This is supposed to be called while holding the lock. The lock is dropped before going to sleep and is reacquired afterwards.
COPYRIGHT¶
January 2017 | Kernel Hackers Manual 4.8. |