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.