WAIT_EVENT_FREEZABLE(9)                   Driver Basics                   WAIT_EVENT_FREEZABLE(9)



NAME
       wait_event_freezable - sleep (or freeze) until a condition gets true

SYNOPSIS
       wait_event_freezable(wq, condition);

ARGUMENTS
       wq
           the waitqueue to wait on

       condition
           a C expression for the event to wait for

DESCRIPTION
       The process is put to sleep (TASK_INTERRUPTIBLE -- so as not to contribute to system load)
       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.

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