__wake_up

Langue: en

Version: October 2010 (fedora - 01/12/10)

Section: 9 (Appels noyau Linux)

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.