__WAKE_UP(9) Driver Basics __WAKE_UP(9)NAME__wake_up - wake up threads blocked on a waitqueue.
SYNOPSIS
void __wake_up(wait_queue_head_t * q, unsigned int mode,
int nr_exclusive, void * key);
ARGUMENTS
q
the waitqueue
mode
which threads
nr_exclusive
how many wake-one or wake-many threads to wake up
key
is directly passed to the wakeup function
DESCRIPTION
It may be assumed that this function implies a write memory barrier
before changing the task state if and only if any tasks are woken up.
COPYRIGHTKernel Hackers Manual 2.6. November 2013 __WAKE_UP(9)