__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.

COPYRIGHT
Kernel Hackers Manual 4.8.                 January 2017                              __WAKE_UP(9)